Base with adjustable feet and household appliance

Abstract

The application provides a base with adjustable legs and a household appliance. The base comprises: a seat body used for being fixed to the bottom of an object to be carried; a leg used for being supported on a carrying surface, the leg being slidingly connected to the seat body in the up-down direction to adjust the distance between the seat body and the carrying surface; a driving device comprising a toothed plate connected to the leg and extending in the up-down direction, a first gear rotatably connected to the seat body to be engaged with the toothed plate, and an operating assembly used for driving the first gear to rotate, the rotation of the first gear driving the toothed plate to move up and down. When it is necessary to adjust the height of the position of the household appliance corresponding to the leg, it is only necessary to operate the driving device to drive the leg to move up and down, without the need to lift the household appliance, and when the leg is adjusted, the household appliance will not be translated, thus optimizing the user experience.

Description

Technical Field

[0001] This invention relates to the field of household appliances, and more particularly to a base with adjustable feet and a household appliance. Background Technology

[0002] Generally, household appliances placed on a level surface do not require leveling. However, it is difficult to ensure that the floor in a user's home is level, which can cause appliances to tilt, potentially increasing noise or even affecting their performance.

[0003] Currently, a nut is typically integrated into the bottom of the appliance, with a support foot screwed in inside the nut. Adjusting the appliance's level requires lifting that side of the appliance and then rotating the support foot from below to adjust its height. This requires repeated adjustments, making the process cumbersome, increasing the difficulty of appliance installation, and failing to ensure balance.

[0004] In view of this, it is necessary to provide a new base and household appliance with adjustable feet to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a base with adjustable feet and a household appliance.

[0006] To achieve the above-mentioned objectives, the present invention adopts the following technical solution: a base with adjustable legs, comprising:

[0007] A base, which is used to fix the bottom of the object to be supported;

[0008] The support leg is used to support the bearing surface and is slidably connected to the base in the vertical direction to adjust the distance between the base and the bearing surface;

[0009] The driving device includes a toothed plate connected to the support leg and extending in the vertical direction, a first gear rotatably connected to the base body to mesh with the toothed plate, and an operating component for driving the first gear to rotate, wherein the rotation of the first gear causes the toothed plate to move up and down.

[0010] As a further improvement of the present invention, the operating component includes a turbine connected to and coaxially arranged with the first gear, a worm gear meshing with the turbine gear, and an operating part disposed at the end of the worm gear.

[0011] As a further improvement of the present invention, the support leg includes a support body and a limiting plate connected to the support body and extending upward, and the toothed plate is connected to the limiting plate; the base has a through hole for the limiting plate and the toothed plate to pass through, and two first limiting grooves arranged opposite each other in the horizontal direction and connected to the through hole, the left and right ends of the limiting plate are respectively limited in the two first limiting grooves, and the toothed plate is located between the two first limiting grooves.

[0012] As a further improved technical solution of the present invention, the base also includes a protrusion on the side of the limiting plate away from the toothed plate and a support plate located below the protrusion. When the support leg moves downward to the point where the protrusion abuts against the support plate, the support plate restricts the support leg from moving further downward.

[0013] As a further improvement of the present invention, the worm gear is provided with a limiting ring, and the base has a second limiting groove arranged opposite to each other in the left and right direction. The second limiting groove has an upward-opening mounting opening. After the worm gear is installed on the base, the worm gear is located between the two second limiting grooves, and the limiting ring is located in the second limiting groove.

[0014] As a further improvement of the present invention, the base also includes a pressure plate for fixing the worm gear to the base body. The pressure plate has a receiving portion for receiving the worm gear and a fixing portion located on opposite sides of the receiving portion for fixing to the base body.

[0015] As a further improvement of the present invention, the base includes two legs spaced apart on the seat body in the front-rear direction, each leg corresponding to one driving device, and the operating parts of the two driving devices are both configured to be operable from the front side of the seat body.

[0016] As a further improvement of the present invention, the two sets of operating components are respectively disposed on opposite sides of the support leg, and the operating part of the operating component located on the rear side extends forward to the front side of the base.

[0017] As a further improvement of the present invention, the base also includes a linkage rod movably connected to the seat body. The rear end of the linkage rod is connected to the operating part corresponding to the operating component located on the rear side. The front end of the linkage rod is exposed from the front side of the seat body. The operating part on the operating component located on the rear side rotates synchronously with the linkage rod.

[0018] As a further improvement of the present invention, the linkage rod further includes a rod body and a baffle plate disposed on the rod body; the base has a stop structure that cooperates with the baffle plate to restrict the forward movement of the linkage rod.

[0019] As a further improvement of the present invention, the base also includes rollers rotatably connected to the lower side of the base body.

[0020] As a further improvement of the present invention, the lower side of the support leg has a roller; the base also includes a locking member for locking the roller.

[0021] To achieve the above-mentioned objectives, the present invention also provides a household appliance, which includes the aforementioned base with adjustable feet.

[0022] The beneficial effects of the present invention are: the base with adjustable feet in the present invention allows for easy adjustment of the height of the household appliance and the corresponding position of the feet by simply operating the drive device to move the feet up and down, without having to lift the household appliance. Furthermore, the household appliance will not move horizontally when the feet are adjusted, which facilitates operation and optimizes the user experience. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of a refrigerator structure having the base as described in the first embodiment of the present invention;

[0024] Figure 2 for Figure 1 A schematic diagram of the base structure;

[0025] Figure 3 for Figure 2 A partially exploded view of the base;

[0026] Figure 4 for Figure 3 A schematic diagram of the structure of the base;

[0027] Figure 5 This is a partial structural diagram of the base in the second embodiment of the present invention;

[0028] Figure 6 for Figure 5 The diagram shows the structure of the linkage in the base.

[0029] Figure 7 This is a partial structural diagram of the base in the third embodiment of the present invention;

[0030] Figure 8 This is a partial structural diagram of the base in the fourth embodiment of the present invention;

[0031] Figure 9 for Figure 8 The diagram shows the structure of the base after removing the connecting rod.

[0032] Figure 10 This is a partial structural diagram of the base in the fifth embodiment of the present invention;

[0033] Figure 11 for Figure 10 The diagram shows the interaction structure between the legs, drive unit, and locking mechanism in the base. Detailed Implementation

[0034] The present invention will now be described in detail with reference to the embodiments shown in the accompanying drawings. Please refer to the accompanying drawings for further details. Figures 1-11 The figures shown represent preferred embodiments of the present invention, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. However, it should be noted that these embodiments are not intended to limit the present invention, and any equivalent transformations or substitutions in function, method, or structure made by those skilled in the art based on these embodiments are within the scope of protection of the present invention. In the various figures of the present invention, for ease of illustration, certain dimensions of structures or parts may be exaggerated relative to other structures or parts; therefore, they are only used to illustrate the basic structure of the subject matter of the present invention.

[0035] It should be noted that in the description of this invention, for ease of description, terms indicating direction such as "front," "rear," "left," "right," "up," "down," and "bottom" are used with reference to the base after it is installed on the household appliance. This is merely for ease of description and does not indicate or imply that the device or component must have a specific orientation, or be constructed and operated in a specific orientation; therefore, it should not be construed as a limitation of this invention. Furthermore, terms such as "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] Furthermore, it should be noted that, in the description of this invention, unless otherwise explicitly specified and limited, the terms "installation" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can also refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0037] Please refer to Figure 1 As shown, the present invention provides a base 10 with adjustable legs 2 and a household appliance having the base 10. The base 10 is fixed to the bottom of the object to be supported, so that the object to be supported is placed on the supporting surface. The level of the object to be supported can be adjusted by adjusting the height of the base 10, thereby avoiding the tilting problem caused by the flatness of the supporting surface, achieving horizontal placement, which is safe and reliable.

[0038] The household appliances mentioned include, but are not limited to, refrigerators 20, freezers, refrigerators, washing machines, dryers, washer-dryers, etc. It is understood that when the base 10 is fixed to the bottom of the household appliance, the term "object to be supported" refers to the household appliance. The following explanation uses refrigerator 20 as an example of the object to be supported, but it is not limited to this.

[0039] Meanwhile, the aforementioned "bearing surface" can be any feasible plane, inclined plane, curved surface, etc. For example, it can be the ground, tabletop, step surface, etc. Below, we will take the ground as an example to illustrate this in detail.

[0040] Combination Figures 2-4 As shown, the base 10 includes a seat 1 fixed to the bottom of the refrigerator 20, a support leg 2 slidably connected to the seat 1 in the vertical direction, and a drive device 3 mounted on the seat 1 to drive the support leg 2 to move up and down. The seat 1 is fixed to the bottom of the refrigerator 20 to support and carry the refrigerator 20. The support leg 2 is supported on the ground. When the support leg 2 moves up and down, it drives the seat 1 to move closer to or further away from the ground to adjust the distance between the seat 1 and the ground. In this invention, when it is necessary to adjust the height of the refrigerator 20 and the corresponding position of the support leg 2, it is only necessary to operate the drive device 3 to drive the support leg 2 to move up and down. There is no need to lift the refrigerator 20, and the refrigerator 20 will not move horizontally when adjusting the support leg 2, which is convenient for operators, optimizes the user experience, and facilitates the adjustment of the level of the refrigerator 20.

[0041] Furthermore, the driving device 3 includes a toothed plate 31 connected to the support leg 2 and extending in the vertical direction, a first gear 32 rotatably connected to the base 1 to mesh with the toothed plate 31, and an operating component for driving the first gear 32 to rotate. The rotation of the first gear 32 causes the toothed plate 31 to move up and down. The transmission between the first gear 32 and the toothed plate 31 is relatively stable, enhancing the stability of the base 10; at the same time, the structure is simple and easy to adjust.

[0042] Furthermore, the support leg 2 includes a support body 21 for supporting on the ground, a limiting plate 22 connected to the support body 21 and extending upward, a toothed plate 31 connected to the limiting plate 22, and a through hole 11 on the base 1 for the limiting plate 22 and the toothed plate 31 to pass through. The shape of the through hole 11 is consistent with the assembly of the toothed plate 31 and the limiting plate 22, and can guide the support leg 2 to move up and down.

[0043] Furthermore, the base 1 is also provided with two first limiting grooves 12 arranged horizontally opposite to each other and communicating with the through hole 11. After the support leg 2 is assembled onto the base 1, the opposite ends of the limiting plate 22 are respectively limited within the two first limiting grooves 12, and the toothed plate 31 is located between the two first limiting grooves 12. On the one hand, the first limiting grooves 12 cooperate with the limiting plate 22 to guide the limiting plate 22 to move in the vertical direction; on the other hand, the first limiting grooves 12 can provide a certain supporting force to the limiting plate 22, enhancing the stability of the meshing transmission between the first gear 32 and the toothed plate 31.

[0044] In one specific embodiment, the width direction of the limiting plate 22 extends in the left-right direction, and the two first limiting grooves 12 are spaced apart in the left-right direction. Of course, this is not a limitation. It can be understood that in the embodiment where the width direction of the limiting plate 22 extends in the front-back direction, the two first limiting grooves 12 are spaced apart in the front-back direction. That is, the arrangement direction of the two first limiting grooves 12 only needs to be set to be the same as the width direction of the limiting plate 22.

[0045] Furthermore, the base 10 also includes a protrusion 4 disposed on the side of the limiting plate 22 opposite to the toothed plate 31, and a supporting plate 13 located below the protrusion 4. When the support leg 2 moves downward until the protrusion 4 abuts against the supporting plate 13, the supporting plate 13 restricts the support leg 2 from moving further downward. This is to prevent the support leg 2 from moving downward too much, causing the toothed plate 31 to disengage from the first gear 32, and to enhance the stability of the drive device 3.

[0046] In one specific embodiment, the supporting plate 13 is the partition wall that forms the perforation 11. Of course, this is not a limitation.

[0047] Further, in one specific embodiment, the operating component includes a turbine 33 connected to and coaxially arranged with the first gear 32, a worm gear 34 meshing with the turbine 33, and an operating part 35 disposed at the end of the worm gear 34. The extension direction of the worm gear 34 can be adjusted as needed, meaning the user can operate the operating part 35 from outside the base 1 to adjust the height of the base 10, facilitating user adjustment. Of course, this is not a limitation; in other embodiments, other operating components can be provided to drive the first gear 32 to rotate. For example, the operating part 35 can be directly connected to the first gear 32 and coaxially arranged with it, so that the first gear 32 can be directly driven to rotate through the operating part 35.

[0048] Specifically, the first gear 32 and the turbine 33 are integrally formed composite gears, which are directly rotatably connected to the base 1 to enhance the stability of the transmission of the operating component.

[0049] It is understood that those skilled in the art can, as needed, design the operating part 35 as a prism with a non-circular cross-section, such as a hexagonal prism, so that the operator can operate the operating part 35 with a wrench. Of course, this is not a limitation, and those skilled in the art can also, as needed, design the operating part 35 as any other feasible structure with a non-circular cross-section, such as a triangular prism, an elliptical prism, a quadrilateral prism, etc.

[0050] In addition, those skilled in the art can, as needed, configure the operating part 35 to have a non-circular cross-section trough, such as a hexagonal trough, a triangular trough, an elliptical trough, a rectangular trough, a cross-shaped trough, etc.

[0051] In one specific embodiment, the operating part 35 is exposed from the front side of the seat body 1, so that the user can adjust the height of the base 10 from the front side of the seat body 1, which is convenient for the user to adjust. Of course, this is not a limitation.

[0052] Specifically, the seat 1 includes a front wall 14, and the front wall 14 is provided with an opening 141 for exposing the operating part 35. The operating part 35 can be exposed to the front side of the seat 1 through the opening 141, or the operating part 35 can also be located in the opening 141, as long as the user can operate the operating part 35 through the opening 141.

[0053] It is understood that in the embodiment where the operating part 35 is exposed from the front side of the seat 1, the operating part 35 is provided at the front end of the worm 34, and the worm 34 extends in the front-rear direction.

[0054] Furthermore, the worm gear 34 is provided with a limiting ring 341, and the base 1 has second limiting grooves 15 arranged opposite each other in the left-right direction. The second limiting grooves 15 have upward-opening mounting openings. When installing the worm gear 34, the limiting ring 341 enters the second limiting groove 15 from the mounting opening. After the worm gear 34 is installed on the base 1, the worm gear 34 is located between the two second limiting grooves 15, and the limiting ring 341 is located within the second limiting grooves 15 to restrict the worm gear 34 from moving back and forth.

[0055] Furthermore, the base 10 also includes a pressure plate 5 for fixing the worm gear 34 to the base body 1, thereby restricting the radial movement of the worm gear 34. Thus, the worm gear 34 can only rotate in place, enhancing its stability.

[0056] In one specific embodiment, the pressure plate 5 has a receiving portion for accommodating the worm 34 and fixing portions located on opposite sides of the receiving portion for fixing to the base 1. After the pressure plate 5 is fixed to the base 1, the receiving portion and the base 1 together form a limiting hole for limiting the worm 34, which can enhance the fixing effect of the pressure plate 5 on the worm 34 and limit the worm 34 from radial displacement.

[0057] Furthermore, the base 10 includes two support legs 2 spaced apart on the base body 1 in the front-to-back direction. Each support leg 2 corresponds to one drive device 3, and the operating parts 35 of both drive devices 3 are configured to be operable from the front of the base body 1. Thus, the height of the rear support legs 2 can be adjusted from the front of the refrigerator 20, optimizing the user experience and making it particularly suitable for leveling the built-in refrigerator 20.

[0058] In this invention, the lower side of the refrigerator 20 includes two sets of bases 10 spaced apart in the left-right direction, thereby enabling the height of the four corners of the refrigerator 20 to be adjusted separately, which is beneficial for quickly adjusting the level of the refrigerator 20. Of course, this is not a limitation; in other embodiments, each base 10 may also include only one support leg 2 located on the front bottom side of the refrigerator 20 and a corresponding driving device 3.

[0059] In one specific embodiment, both support legs 2 and their corresponding drive devices 3 are mounted on a single base 1 to facilitate pre-positioning of the relative positions of the two support legs 2, and to simplify the fixed connection between the base 10 and the refrigerator 20. However, this is not a limitation; in other embodiments, the two support legs 2 and their corresponding drive devices 3 may be mounted on two separate bases 1.

[0060] For ease of description, the base 10 is defined as including a front support leg, a front drive device corresponding to the front support leg, a rear support leg, and a rear drive device corresponding to the rear support leg. The front drive device has a front operating part 351, and the rear drive device has a rear operating part 352. The front wall 14 has a first opening and a second opening 1411 for operating the front operating part 351 and the rear operating part 352 from the front side.

[0061] Please refer to Figure 2As shown, in the first embodiment of the present invention, the two sets of operating components of the front drive device 3 and the rear drive device 3 are respectively disposed on opposite sides of the support leg 2. The rear operating part 352 extends forward to the position where the second opening 1411 is located, so that the rear operating part 352 can be operated from the outside or inside of the second opening 1411 by means of a wrench or the like, which facilitates the horizontal adjustment of the refrigerator 20. Of course, this is not a limitation. The front support leg 2 and the rear support leg 2 can also be staggered in the left and right direction, which can also avoid interference between the operation of the front operating part 351 and the rear operating part 352.

[0062] Please refer to Figures 5-6 The figure shows the base 10a in the second embodiment of the present invention. Only the structure at the position corresponding to the connecting rod 6 in the base 1 is shown; other structures can be referenced from the first embodiment. The difference between this second embodiment and the first embodiment is that the base 10a further includes a connecting rod 6 rotatably connected to the base 1. The rear end of the connecting rod 6 is connected to the rear operating part 352, and the front end of the connecting rod 6 is exposed from the front side of the base 1. The rear operating part 352 rotates synchronously with the connecting rod 6. Therefore, operating the connecting rod 6 from the front side of the base 1 can drive the rear operating part 352 to rotate, thereby enabling the rear support leg to be operated from the front side of the base 10. In this case, the structures of the front drive device and the rear drive device can be identical, such as having the same dimensions for the worm gear 34, simplifying the fabrication of the base 10. However, this is not a limitation.

[0063] In one specific embodiment, the operating part 35 has a rectangular or cross-shaped recess, and the rear end of the connecting rod 6 has a plug 61 for inserting into the recess of the operating part 35. The recess and the plug 61 adapted to it cause the rear operating part 352 to rotate synchronously with the connecting rod 6. Of course, this is not a limitation. It is understood that when the operating part 35 is a non-circular cylinder, the plug 61 can be configured to have a recess adapted to the non-circular cylinder, as long as the plug 61 cooperates with the rear operating part 352 to enable the rear operating part 352 to rotate synchronously with the connecting rod 6.

[0064] The front end of the linkage 6 is provided with an auxiliary operation part 62, which is exposed from the front side of the base 10. It is understood that the structure of the auxiliary operation part 62 can be configured to be the same as that of the operation part 35. However, this is not a limitation.

[0065] Furthermore, the linkage 6 also includes a rod body 63 located between the auxiliary operation part 62 and the insertion block 61, and a baffle 64 disposed on the rod body 63. The baffle 64 is used to cooperate with the stop structure 9 on the base 1 to restrict the forward movement of the linkage 6, thereby preventing the insertion block 61 from disengaging from the rear operation part 352 due to the forward movement of the linkage 6, and enhancing the stability of the connection between the linkage 6 and the rear operation part 352.

[0066] In this embodiment, the baffle 64 consists of two sheet-like baffles arranged radially opposite to each other along the connecting rod 6. However, this is not a limitation; the baffle 64 can also be an annular baffle or multiple sheet-like baffles spaced apart radially along the connecting rod 6.

[0067] Furthermore, the base 1 has a through hole 7 that extends through the body in the front-back direction, and the through hole 7 is connected to the second opening 1411.

[0068] Please refer to Figure 5 As shown, in this embodiment, the second opening 1411 has a first mounting notch 8 on one side. When installing the linkage rod 6, the insert block 61 is inserted into the through hole 7 from the front end of the through hole 7 and the linkage rod 6 is pushed backward until the baffle 64 is located on the rear side of the front wall 14. Then, the rod 63 between the baffle 64 and the auxiliary operation part 62 is inserted into the second opening 1411 through the first mounting notch 8.

[0069] It is known that the first mounting notch 8 can be located on the upper or lower side of the second opening 1411, and can be selected according to the specific structure of the base 1.

[0070] After the connecting rod 6 is installed on the base 1, the baffle 64 abuts against the rear side of the front wall 14 to prevent the connecting rod 6 from moving forward. This prevents the insert block 61 from disengaging from the rear operating part 352 due to the forward movement of the connecting rod 6, thus enhancing the stability of the connection between the connecting rod 6 and the rear operating part 352. The auxiliary operating part 62 is located in front of the second opening 1411, allowing operation from the front of the refrigerator 20. Simultaneously, the rod 63 located between the baffle 64 and the insert block 61 is confined within the through hole 7, preventing the connecting rod 6 from moving radially and enhancing its stability.

[0071] It is understood that in this embodiment, the stop structure 9 is the front wall 14.

[0072] The second embodiment is identical to the first embodiment except for the differences mentioned above, and will not be repeated here.

[0073] Please refer to Figure 7 As shown, this is the base 10b in the third embodiment of the present invention. The difference between the third embodiment and the second embodiment is that the installation structure and limiting structure of the linkage rod 6b on the base 1 in the second embodiment are different from those in the first embodiment. Correspondingly, the installation method of the linkage rod 6b is different.

[0074] Specifically, in this embodiment, the second opening 1411b does not have a first mounting notch 8, and the wall of the through hole 7b has a second mounting notch 8b, which penetrates the hole wall in the front-back direction. The stop structure 9b is disposed inside the through hole 7b. When installing the linkage rod 6b, the linkage rod 6b is directly pushed into the through hole 7b through the second mounting notch 8b, so that the baffle 64b cooperates with the stop structure 9b, and the auxiliary operating part 62 is positioned at the corresponding position of the second opening 1411b. Of course, this is not a limitation. It is understandable that the second opening 1411b may also have the first mounting notch 8, and the wall of the through hole 7b may also have a second mounting notch 8b. In this case, the front wall 14 can be used as the stop structure 9b. When installing the linkage rod 6b, the rod body 63 between the baffle 64b of the linkage rod 6b and the auxiliary operation part 62 should correspond to the first mounting notch 8, and the rod body 63 on the side of the baffle 64 away from the auxiliary operation part 62 should correspond to the second mounting notch 8b. Then, the linkage rod 6b should be pushed in so that the baffle 64b abuts against the rear side of the front wall 14. At the same time, the auxiliary operation part 62 can be located outside the second opening 1411.

[0075] In one specific embodiment, the baffle 64b is an annular baffle, and the stop structure 9b consists of two opposing limiting grooves. However, this is not a limitation.

[0076] Furthermore, the base 10 also includes a fixing plate 30 fixed to the base body 1 to cover at least part of the second mounting notch 8b, so as to fix the linkage rod 6b in the through hole 7b and prevent the linkage rod 6b from disengaging from the through hole 7b in its radial direction.

[0077] The third embodiment is identical to the second embodiment except for the differences mentioned above, and will not be repeated here.

[0078] Please refer to Figure 8-9 As shown, this is the base 10c in the fourth embodiment of the present invention. The difference between the fourth embodiment and the second embodiment is that the installation structure and limiting structure of the connecting rod 6 on the base 1 in the fourth embodiment are different from those in the second embodiment. Correspondingly, the installation method of the connecting rod 6 is different.

[0079] Specifically, in this embodiment, the second opening 1411c is an elongated hole extending vertically, the height of which is the same as the maximum distance between the two oppositely arranged sheet-like baffles 64. The wall of the through hole 7c is provided with a third mounting notch 8c, and the third mounting notch 8c penetrates the wall of the hole in the front-back direction.

[0080] The following description uses the example of the third mounting notch 8c being located on the upper side of the through hole 7c. Of course, it is understood that the third mounting notch 8c can also be located on the lower side of the through hole 7c or on another side.

[0081] Furthermore, along the front-to-back direction, the limiting wall inside the through hole 7c, used to limit the rod body 63, and the elongated hole form a positioning hole that matches the outer diameter of the rod body 63. Specifically, the bottom of the through hole 7c is higher than the bottom of the second opening 1411c. When installing the linkage rod 6, the insert 61 of the linkage rod 6 is inserted into the second opening 1411c from the front side of the second opening 1411, and the linkage rod 6 is tilted so that it enters the through hole 7 in a state of front-low and rear-high until the baffle 64 passes through the second opening 1411c. After the baffle 64 passes through the second opening 1411c, the linkage rod 6 is flattened so that it enters the through hole 7c from the third mounting notch 8c. The through hole 7c raises the linkage rod 6, so that the linkage rod 6 moves upward until the rod body 63 between the baffle 64 and the auxiliary operation part 62 abuts against the upper part of the second opening 1411c. The second opening 1411c and the through hole 7 cooperate to restrict the linkage rod 6 from moving radially. At the same time, the baffle 64 abuts against the rear side of the front wall 14, which can prevent the linkage rod 6 from moving forward. Understandably, at this time, the linkage rod 6 can be rotated so that both of the plate-shaped baffles 64 of the linkage rod 6 abut against the front wall 14 to enhance its limiting effect, as long as the insert block 61 of the linkage rod 6 after rotation can be inserted into the rear operating part 352.

[0082] In the third embodiment of the present invention, the example is described using two oppositely arranged sheet-like baffles 64. It is understood that the mating structure between the connecting rod 6 and the base 10c is as follows: the connecting rod 6 is installed into the base 10c from front to back, and after the baffle 64 passes through the second opening 1411, the through hole 7 can drive the connecting rod 6 to shift radially so that the baffle 64 abuts against the front wall 14, restricting the forward movement of the connecting rod 6. Simultaneously, the second opening 1411c and the through hole 7c jointly restrict the radial movement of the connecting rod 6, which falls within the protection scope of the present invention.

[0083] The fourth embodiment of the present invention is the same as the second embodiment except for the differences mentioned above, and will not be repeated here.

[0084] It is understood that the mounting structure, limiting structure and mounting method of the linkage rod 6 on the seat 1 in this invention are not limited to the second to fourth embodiments. All modifications based on the concept of this invention are within the protection scope of this invention.

[0085] Furthermore, the base 10 also includes casters 16, which are used to support the refrigerator 20 on the ground when it is pushed, so that the user can move the refrigerator 20 with less effort.

[0086] Combination Figure 3 As shown, in the first embodiment of the present invention, the roller 16 is rotatably connected to the base 1 and located on the lower side of the base 1. When the support leg 2 is driven to move upward until the roller 16 is supported on the ground and the support leg 2 is lifted off the ground, the user can move the refrigerator 20 with relatively little effort. When the refrigerator 20 moves to a preset position, driving the support leg 2 to move downward until the support leg 2 is supported on the ground can restrict the movement of the refrigerator 20. At the same time, the level of the refrigerator 20 can be adjusted by adjusting the height of the support leg 2.

[0087] Please refer to Figures 10-11 As shown, this is the base 10d in the fifth embodiment of the present invention. The difference between this embodiment and the first embodiment is that the roller 16 is rotatably connected to the lower side of the support leg 2. The base 10 also includes a locking member 17 disposed on the seat body 1. The locking member 17 is used to lock the roller 16 after the driving device 3 has been adjusted. This enhances the stability of the refrigerator 20 and prevents the refrigerator 20 from moving.

[0088] In one specific embodiment, the locking member 17 includes a locking nut 171 fixed to the front wall 14 and a locking screw 172 cooperating with the locking nut 171. The rear end of the locking screw 172 abuts against the roller 16 to lock the roller 16. The locking screw 172 can be adjusted from the front end of the base 1 to lock and unlock the roller 16, which is convenient for user use.

[0089] It is understood that in embodiments where the support legs 2 are provided on both the front and rear sides of the left and / or right sides of the refrigerator 20, it is only necessary to provide a locking member 179 for locking the roller 16 located on the front side.

[0090] The fifth embodiment of the present invention is the same as the first embodiment except for the differences mentioned above, and will not be repeated here.

[0091] In summary, the base 10 with adjustable feet 2 in this invention allows for easy adjustment of the height of the household appliance corresponding to the feet 2 by simply operating the drive device 3 to move the feet 2 up and down, without needing to lift the household appliance. Furthermore, the household appliance will not move horizontally when the feet 2 are adjusted, making it easier for operators to operate and optimizing the user experience.

[0092] It should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0093] The detailed descriptions listed above are merely specific descriptions of feasible embodiments of the present invention, and are not intended to limit the scope of protection of the present invention. All equivalent embodiments or modifications made without departing from the spirit of the present invention should be included within the scope of protection of the present invention.

Claims

1. A base with adjustable legs, characterized in that: include: A base, which is used to fix the bottom of the object to be supported; The support leg is used to support the bearing surface and is slidably connected to the base in the vertical direction to adjust the distance between the base and the bearing surface; The driving device includes a toothed plate connected to the support leg and extending in the vertical direction, a first gear rotatably connected to the base body to mesh with the toothed plate, and an operating component for driving the first gear to rotate, wherein the rotation of the first gear causes the toothed plate to move up and down. The base includes two legs spaced apart on the seat body in the front-to-back direction. Each leg corresponds to one drive device. Two sets of operating components are respectively arranged on the left and right sides of the legs. The operating parts of the two drive devices are both configured to be operable from the front of the seat body.

2. The base with adjustable legs as described in claim 1, characterized in that: The operating component includes a turbine connected to and coaxially arranged with the first gear, a worm gear meshing with the turbine gear, an operating part located at the end of the worm gear, and the operating part of the operating component located at the rear extends forward to the front side of the seat.

3. The base with adjustable legs as described in claim 1, characterized in that: The support leg includes a support body and a limiting plate connected to the support body and extending upward, and the toothed plate is connected to the limiting plate; the base has a through hole for the limiting plate and the toothed plate to pass through, and two first limiting grooves arranged horizontally opposite to each other and connected to the through hole, the left and right ends of the limiting plate are respectively limited in the two first limiting grooves, and the toothed plate is located between the two first limiting grooves.

4. The base with adjustable legs as described in claim 3, characterized in that: The base also includes a protrusion on the side of the limiting plate opposite to the toothed plate and a support plate located below the protrusion. When the support leg moves downward to the point where the protrusion abuts against the support plate, the support plate restricts the support leg from moving further downward.

5. The base with adjustable legs as described in claim 2, characterized in that: The worm gear is provided with a limiting ring, and the base has a second limiting groove arranged opposite to each other in the left-right direction. The second limiting groove has an upward-opening mounting opening. After the worm gear is installed on the base, the worm gear is located between the two second limiting grooves, and the limiting ring is located in the second limiting groove.

6. The base with adjustable legs as described in claim 2, characterized in that: The base also includes a pressure plate for fixing the worm gear to the base body. The pressure plate has a receiving portion for receiving the worm gear and fixing portions located on opposite sides of the receiving portion for fixing to the base body.

7. The base with adjustable legs as described in claim 2, characterized in that: The base also includes a linkage rod movably connected to the seat body. The rear end of the linkage rod is connected to the operating part corresponding to the operating component located on the rear side. The front end of the linkage rod is exposed from the front side of the seat body. The operating part on the operating component located on the rear side rotates synchronously with the linkage rod.

8. The base with adjustable legs as described in claim 7, characterized in that: The linkage also includes a rod body and a baffle plate disposed on the rod body; the base has a stop structure that cooperates with the baffle plate to restrict the forward movement of the linkage.

9. The base with adjustable legs as described in claim 1, characterized in that: The base also includes rollers rotatably connected to the lower side of the base body.

10. The base with adjustable legs as described in claim 1, characterized in that: The lower side of the support leg has a roller; the base also includes a locking element for locking the roller.

11. A household appliance, characterized in that: The household appliance includes a base with adjustable feet as described in any one of claims 1-10.

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