Adjustable footing and household appliance comprising same

Abstract

The utility model relates to the technical field of household appliances, in particular to an adjustable bottom foot and a household appliance comprising the adjustable bottom foot, and aims to solve the problem that the height of a bottom foot of an existing household appliance is inconvenient to adjust. Therefore, the adjustable bottom foot comprises a fixing component, a worm, a worm gear and a bottom foot body, the worm is horizontally arranged and rotatably installed in the fixing component, the worm gear is meshed with the worm and rotatably installed on the fixing component, a first through hole penetrating through the worm gear in the vertical direction is formed in the worm gear, a first thread is arranged on the inner wall of the first through hole, and a second thread is arranged on the outer wall of the first through hole. The bottom foot penetrates into the first through hole, the bottom foot is provided with a second thread matched with the first thread, the worm wheel is driven to rotate by rotating the worm, the bottom foot can move up and down along with rotation of the worm wheel, and therefore the height of the adjustable bottom foot is adjusted, operation is easy and convenient, the height adjusting efficiency of the adjustable bottom foot is improved, and the use experience of a user is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to domestic appliance technical field, concretely provides a kind of adjustable foot and including the adjustable foot of domestic appliance of the adjustable foot. BACKGROUND

[0002] With the improvement of people's living standards, household appliances such as refrigerators, washing machines and clothes care machines gradually become one of the indispensable household appliances in people's daily life.

[0003] The existing household appliances such as clothes care machines need to be leveled during installation. If the clothes care machine is not installed horizontally, it will affect the care effect of the clothes care machine, and even there is a risk of tipping during operation. Most of the existing clothes care machines are installed with feet under the bottom plate. The feet and the bottom plate are respectively provided with threaded rods and threaded holes matched with each other. The height of the clothes care machine is adjusted by rotating the feet. However, the feet need to be rotated by hand during adjustment, which is time-consuming and laborious. Moreover, the clothes care machine needs to be adjusted and calibrated several times to be leveled, and the leveling effect is not ideal.

[0004] Therefore, there is a need in the art for a new technical solution to solve the above problems. UTILITY MODEL CONTENT

[0005] The utility model aims to solve the above technical problems, that is, to solve the problem of inconvenient height adjustment of the feet of the existing household appliances.

[0006] In a first aspect, the utility model provides an adjustable foot, comprising: a fixed member, a worm, a worm gear and a foot, the worm is horizontally arranged and rotatably installed in the fixed member, the worm gear is engaged with the worm and rotatably installed on the fixed member, the worm gear is provided with a first through hole penetrating the worm gear in the vertical direction, the inner wall of the first through hole is provided with a first thread, the foot penetrates the first through hole, the foot is provided with a second thread matched with the first thread, the worm can drive the worm gear to rotate, and the foot can move up and down along the vertical direction with the rotation of the worm gear.

[0007] In the above technical solution, the worm is rotated to drive the worm gear to rotate, which can move the foot up and down with the rotation of the worm gear, thereby adjusting the height of the adjustable foot. The operation is simple and convenient, the efficiency of height adjustment of the adjustable foot is improved, and the user's experience is improved.

[0008] In the preferred technical solution of the above adjustable foot, the foot comprises a base and a vertically arranged support rod, the bottom end of the support rod is fixedly connected or integrally arranged with the base, the support rod penetrates the first through hole, and the second thread is arranged on the support rod.

[0009] In the above technical scheme, the base is provided with the base and the supporting rod connected with each other, so that the structure is simple and convenient to install and disassemble.

[0010] In the above technical scheme, the base is provided with the base and the supporting rod connected with each other, so that the structure is simple and convenient to install and disassemble.

[0011] In the above technical scheme, the base is provided with the base and the supporting rod connected with each other, so that the structure is simple and convenient to install and disassemble.

[0012] In the above technical scheme, the base is provided with the base and the supporting rod connected with each other, so that the structure is simple and convenient to install and disassemble.

[0013] In the above technical scheme, the base is provided with the base and the supporting rod connected with each other, so that the structure is simple and convenient to install and disassemble.

[0014] In the above technical scheme, the base is provided with the base and the supporting rod connected with each other, so that the structure is simple and convenient to install and disassemble.

[0015] In the above technical scheme, the base is provided with the base and the supporting rod connected with each other, so that the structure is simple and convenient to install and disassemble.

[0016] In the preferred technical scheme of the adjustable foot, the protective shell is further provided with a mounting hole in communication with the top end of the strip-shaped opening, and the transverse size of the mounting hole is greater than the transverse size of the strip-shaped opening.

[0017] In the preferred technical scheme of the adjustable foot, the protective shell is further provided with a mounting hole in communication with the top end of the strip-shaped opening, and the transverse size of the mounting hole is greater than the transverse size of the strip-shaped opening.

[0018] In the preferred technical scheme of the adjustable foot, the protective shell is further provided with a mounting hole in communication with the top end of the strip-shaped opening, and the transverse size of the mounting hole is greater than the transverse size of the strip-shaped opening.

[0019] In the preferred technical scheme of the adjustable foot, the protective shell is further provided with a mounting hole in communication with the top end of the strip-shaped opening, and the transverse size of the mounting hole is greater than the transverse size of the strip-shaped opening.

[0020] In the preferred technical scheme of the adjustable foot, the protective shell is further provided with a mounting hole in communication with the top end of the strip-shaped opening, and the transverse size of the mounting hole is greater than the transverse size of the strip-shaped opening.

[0021] In the preferred technical scheme of the adjustable foot, the protective shell is further provided with a mounting hole in communication with the top end of the strip-shaped opening, and the transverse size of the mounting hole is greater than the transverse size of the strip-shaped opening.

[0022] In the preferred technical scheme of the adjustable foot, the protective shell is further provided with a mounting hole in communication with the top end of the strip-shaped opening, and the transverse size of the mounting hole is greater than the transverse size of the strip-shaped opening.

[0023] In the preferred technical scheme of the adjustable foot, the protective shell is further provided with a mounting hole in communication with the top end of the strip-shaped opening, and the transverse size of the mounting hole is greater than the transverse size of the strip-shaped opening.

[0024] In the preferred technical scheme of the household appliance, the household appliance further comprises an extended adjusting rod, one end of the extended adjusting rod is fixedly connected with the worm of the adjustable foot installed at the first end of the bottom plate, the other end of the extended adjusting rod extends to the second end of the bottom plate, the extended adjusting rod can drive the worm to rotate, the first end is an end of the bottom plate close to the back of the household appliance, and the second end is an end of the bottom plate close to the front of the household appliance.

[0025] In the case of adopting the technical scheme, the extended adjusting rod is arranged, so that the adjustable foot located at the back side of the household appliance can be conveniently adjusted, and the leveling efficiency of the household appliance is improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] The preferred embodiments of the household appliance are described below with reference to the accompanying drawings, in which:

[0027] Figure 1 is a partial structure schematic view of the household appliance of the utility model;

[0028] Figure 2 is a structure schematic view of the adjustable foot of the utility model;

[0029] Figure 3 is a structure explosion of the adjustable foot of the utility model Figure 1 ;

[0030] Figure 4 is a structure explosion of the adjustable foot of the utility model Figure 2 .

[0031] LIST OF REFERENCE NUMERALS

[0032] 1, bottom plate;

[0033] 2, adjustable foot; 21, fixed shell; 22, worm, 23, worm gear; 24, foot; 25, protective shell; 26, limiting rod; 27, rubber pad;

[0034] 211, first opening; 212, second opening; 213, limiting plate; 221, internal hexagonal recess; 231, first through hole; 241, base; 242, supporting rod; 2421, second through hole; 251, strip-shaped opening; 252, mounting hole;

[0035] 3, extended adjusting rod. DETAILED DESCRIPTION

[0036] The preferred embodiments of the utility model are described below with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are only used to explain the technical principles of the utility model, and are not intended to limit the protection scope of the utility model.

[0037] It should be noted that in the description of the utility model, the terms "inner", "outer", "upper", "lower", "top", "bottom" and other terms indicating direction or positional relationship are based on the direction or positional relationship shown in the drawings, which is merely for the convenience of description and does not indicate or imply that the device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0038] In addition, it should also be noted that in the description of the utility model, unless otherwise explicitly specified and limited, the terms "setting", "connecting", "installing" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0039] Based on the problem of height adjustment inconvenience of the existing household appliance foot pointed out in the background art, the utility model provides a adjustable foot and a household appliance comprising the adjustable foot, aiming to rotate the worm to drive the worm gear to rotate, which can make the foot move up and down with the rotation of the worm gear, thereby adjusting the height of the adjustable foot, which is simple and convenient to operate, improves the height adjustment efficiency of the adjustable foot and improves the user's experience.

[0040] Specifically, as shown in Figure 1 The utility model provides a adjustable foot 2, the adjustable foot 2 is installed at the bottom of bulk goods (for example household appliance such as refrigerator, clothes care machine), is used to adjust the flatness of bulk goods.

[0041] As shown in Figures 2 to 4 The adjustable foot 2 of the utility model comprises a fixed member, a worm 22, a worm gear 23 and a foot 24, the worm 22 is horizontally arranged and rotatably installed in the fixed member, the worm gear 23 is engaged with the worm 22 and rotatably installed on the fixed member, the worm gear 23 is provided with a first through hole 231 vertically penetrating the worm gear 23, a first thread is arranged on the inner wall of the first through hole 231, the foot 24 penetrates into the first through hole 231, a second thread matched with the first thread is arranged on the foot 24, the worm 22 can drive the worm gear 23 to rotate, and the foot 24 can move up and down along the vertical direction with the rotation of the worm gear 23.

[0042] Exemplarily, as shown in Figures 2 to 4As shown, the adjustable foot 2 of the utility model is arranged along the vertical direction, the worm 22 is provided with a helical tooth along the length direction thereof, the outer side wall of the worm wheel 23 is provided with a tooth meshing with the helical tooth, the worm 22 and the turbine are rotatably installed in the fixed component, the worm wheel 23 is provided with a first through hole 231 penetrating along the vertical direction, the inner wall of the first through hole 231 is provided with a first thread, the foot 24 can penetrate into the first through hole 231, the foot 24 is provided with a second thread matched with the first thread, that is to say, the foot 24 can rotate in the first through hole 231 of the worm wheel 23, thereby realizing the up and down movement relative to the worm wheel 23, the worm 22 is rotated to drive the worm wheel 23 to rotate, thereby the foot 24 can be driven to move up and down, the height of the adjustable foot 2 is adjusted, and then the bulk goods are leveled, the operation is simple and convenient, the height adjustment efficiency of the adjustable foot 2 is improved, and the use experience of the user is improved.

[0043] Preferably, as Figures 2 to 4 As shown, the foot 24 of the utility model comprises a base 241 and a support rod 242 arranged along the vertical direction, the bottom end of the support rod 242 is fixedly connected or integrally arranged with the base 241, the support rod 242 penetrates into the first through hole 231, and the second thread is arranged on the support rod 242.

[0044] Exemplarily, as Figures 2 to 4 As shown, the base 241 of the utility model is in the shape of a round plate, the base 241 is used for contacting the ground, the bottom end of the support rod 242 is fixedly connected with the central position of the base 241, the top end of the support rod 242 penetrates into the first through hole 231, and the middle position of the support rod 242 is provided with the second thread.

[0045] It should be noted that the utility model does not limit the connection mode of the support rod 242 and the base 241, for example, the support rod 242 and the base 241 can be integrally arranged, inserted or welded and the like by the person skilled in the art, and the adjustment and change of the specific connection mode of the support rod 242 and the base 241 do not deviate from the principle and range of the utility model, and should be limited within the protection range of the utility model.

[0046] Preferably, as Figures 2 to 4 As shown, the fixed component of the utility model is provided with a first limiting structure, the support rod 242 is provided with a second limiting structure, the second limiting structure and the first limiting structure abuttingly cooperate to prevent the support rod 242 from continuing to move downward relative to the fixed component, so as to prevent the second thread from being separated from the first thread.

[0047] That is to say, when the support rod 242 moves downward to the limit position (that is, the second thread is about to be separated from the first thread), the second limiting structure and the first limiting structure can abut together, thereby preventing the support rod 242 from continuing to move downward.

[0048] Preferably, such as Figures 2 to 4 As shown, the fixing component of this utility model includes a fixing shell 21 and a protective shell 25. The fixing shell 21 is provided with a first receiving cavity and a second receiving cavity that are connected to each other. The worm gear 22 and the worm wheel 23 are respectively installed in the first receiving cavity and the second receiving cavity. The bottom wall of the fixing shell 21 is provided with a first opening 211 at a position corresponding to the first through hole 231, allowing the support rod 242 to pass through. The side wall of the fixing shell 21 is provided with a second opening 212 at a position corresponding to the operating end of the worm gear 22. The top of the fixing shell 21 is open. The bottom end of the protective shell 25 is detachably fixedly connected to the top end of the fixing shell 21. The bottom end of the protective shell 25 is open. The top end of the support rod 242 is located inside the protective shell 25. A first limiting structure is provided in the protective shell 25.

[0049] For example, such as Figures 2 to 4 As shown, the fixed shell 21 of this utility model is rectangular in shape, with an open top. The fixed shell 21 has a first receiving cavity and a second receiving cavity that are connected to each other. The worm 22 and the worm wheel 23 are respectively installed in the first receiving cavity and the second receiving cavity. The bottom wall of the fixed shell 21 has a first opening 211 at a position corresponding to the first through hole 231, which allows the support rod 242 to pass through. The side wall of the fixed shell 21 has a second opening 212. The operating end of the worm 22 extends out of the fixed shell 21 through the second opening 212. The bottom end of the protective shell 25 is detachably installed on the top end of the fixed shell 21. The bottom end of the protective shell 25 is open, and the top end of the support rod 242 is located inside the protective shell 25. The first limiting structure is provided on the protective shell 25.

[0050] It should be noted that this utility model does not limit the connection method between the protective shell 25 and the fixed shell 21. For example, those skilled in the art can plug the protective shell 25 and the fixed shell 21 together or connect them with screws, etc. Such adjustments and changes to the specific connection method between the protective shell 25 and the fixed shell 21 do not deviate from the principle and scope of this utility model and should be limited to the protection scope of this utility model.

[0051] Preferably, such as Figures 2 to 4 As shown, the protective shell 25 of this utility model is provided with two strip-shaped openings 251 extending in the vertical direction and located on both sides of the support rod 242. The bottom end of the strip-shaped opening 251 forms a first limiting structure. The top end of the support rod 242 is provided with a second through hole 2421 extending through the support rod 242 in the horizontal direction. The second limiting structure is a limiting rod 26 installed in the second through hole 2421. The two ends of the limiting rod 26 are located in the corresponding strip-shaped openings 251 and can move along the length direction of the strip-shaped openings 251.

[0052] For example, such as Figures 2 to 4As shown, the protective shell 25 of this utility model is cylindrical. The circumferential wall of the protective shell 25 is provided with two oppositely arranged strip-shaped openings 251 extending in the vertical direction. The bottom end of the strip-shaped opening 251 is the first limiting structure. The top end of the support rod 242 is provided with a second through hole 2421 that penetrates the support rod 242 in the horizontal direction. The second through hole 2421 is located between the top end of the support rod 242 and the second thread. The limiting rod 26 passes through the second through hole 2421. The two ends of the limiting rod 26 are respectively located in the corresponding strip-shaped openings 251 and can move along the length direction of the strip-shaped openings 251. When the limiting rod 26 moves downward with the support rod 242 to the limit position, the two ends of the limiting rod 26 can respectively abut against the bottom end of the strip-shaped opening 251, thereby preventing the second thread from separating from the first thread.

[0053] It should be noted that this utility model does not limit the connection method between the limiting rod 26 and the support rod 242. For example, those skilled in the art can insert or screw the limiting rod 26 and the support rod 242, etc. Such adjustments and changes to the specific connection method between the limiting rod 26 and the support rod 242 do not deviate from the principle and scope of this utility model and should be limited to the protection scope of this utility model.

[0054] Preferably, such as Figures 2 to 4 As shown, the protective shell 25 of this utility model is also provided with a mounting hole 252 that communicates with the top of the strip opening 251. The lateral dimension of the mounting hole 252 is larger than the lateral dimension of the strip opening 251.

[0055] For example, such as Figures 2 to 4 As shown, the top of the strip opening 251 of this utility model is provided with a mounting hole 252 that communicates with the strip opening 251. The lateral dimension of the mounting hole 252 is larger than the lateral dimension of the strip opening 251. By setting the mounting hole 252, the installation and removal of the limiting rod 26 on the support rod 242 can be facilitated.

[0056] Preferably, such as Figures 2 to 4 As shown, the fixed shell 21 of this utility model is provided with a third limiting structure. The third limiting structure abuts against the base to prevent the support rod from continuing to move upward relative to the fixed component, so as to prevent the second thread from separating from the first thread.

[0057] For example, such as Figures 2 to 4 As shown, the first opening 211 of the fixed shell 21 of this utility model is provided with a limiting plate 213 arranged around the circumference of the first opening 211. The limiting plate 213 is arranged downward. When the support rod 242 moves upward to the limit position (that is, the second thread is about to separate from the first thread), the base 241 just abuts against the bottom end of the limiting plate 213, thereby preventing the second thread from separating from the first thread.

[0058] It should be noted that this utility model does not limit the form of the third limiting structure. For example, those skilled in the art can also set the third limiting structure as a limiting block or limiting post installed on the bottom wall of the fixed shell 21, etc. Such adjustments and changes to the specific form of the third limiting structure do not deviate from the principle and scope of this utility model and should be limited to the protection scope of this utility model.

[0059] Preferably, such as Figures 2 to 4 As shown, the operating end of the worm gear 22 of this utility model is provided with an internal hexagonal groove 221.

[0060] For example, such as Figures 2 to 4 As shown, the operating end of the worm gear 22 of this utility model extends through the second opening 212 to the outside of the fixed shell 21. The operating end is provided with an internal hexagonal groove 221. The worm gear 22 can be rotated by an internal hexagonal wrench, thereby driving the worm wheel 23 to rotate, which in turn drives the base 24 to move up and down.

[0061] Preferably, such as Figures 2 to 4 As shown, the base 24 of this utility model also includes a rubber pad 27. The bottom surface of the base 241 is provided with a receiving groove, and the rubber pad 27 is installed in the receiving groove.

[0062] For example, such as Figures 2 to 4 As shown, the rubber pad 27 of this utility model is a circular piece that matches the base 241. The rubber pad 27 is installed in the receiving groove on the bottom surface of the base 241 for shock absorption and protection.

[0063] It should be noted that this utility model does not limit the connection method between the rubber pad 27 and the base 241. For example, those skilled in the art can glue or screw the rubber pad 27 to the base 241, etc. Such adjustments and changes to the specific connection method between the rubber pad 27 and the base 241 do not deviate from the principle and scope of this utility model and should be limited to the protection scope of this utility model.

[0064] Secondly, such as Figure 1 As shown, this utility model also provides a household appliance, including the aforementioned adjustable feet 2. The number of adjustable feet 2 is multiple, and the multiple adjustable feet 2 are installed at intervals on the base plate 1 of the household appliance.

[0065] For example, such as Figure 1 As shown, each of the four corners of the base plate 1 of the household appliance of this utility model is equipped with an adjustable foot 2. The fixing shell 21 of the adjustable foot 2 is fixedly installed on the base plate 1. The part of the support rod 242 of the adjustable foot 2 that protrudes upward from the fixing shell 21 passes through the reserved hole on the base plate 1. By adjusting the height of the four adjustable feet 2, the household appliance can be leveled.

[0066] It should be noted that the utility model does not limit the connecting mode of adjustable foot 2 and bottom plate 1, for example, the person skilled in the art can clamp or screw connect adjustable foot 2 and bottom plate 1 and the like, and the adjustment and change of the specific connecting mode of adjustable foot 2 and bottom plate 1 do not deviate from the principle and scope of the utility model, and should be limited within the protection scope of the utility model.

[0067] Preferably, as shown in the utility model further comprises lengthening adjusting rod 3, one end of lengthening adjusting rod 3 is fixedly connected with worm 22 of adjustable foot 2 installed at the first end of bottom plate 1, the other end of lengthening adjusting rod 3 extends to the second end of bottom plate 1, lengthening adjusting rod 3 can drive worm 22 to rotate, the first end is one end of bottom plate 1 close to the back of household appliance, and the second end is one end of bottom plate 1 close to the front of household appliance. Figure 1

[0068] Exemplarily, as shown in the utility model, four adjustable feet 2 are installed at the lower corners of the bottom plate 1 of household appliance, namely two adjustable feet 2 at the front side of bottom plate 1 and two adjustable feet 2 at the rear side of bottom plate 1, and the number of lengthening adjusting rods 3 is two, the rear ends of the two lengthening adjusting rods 3 are fixedly connected with the worms 22 of the two adjustable feet 2 at the rear side respectively, and the front ends of the two lengthening adjusting rods 3 are rotatably installed at the front side of bottom plate 1, when household appliance is installed in the recess, the adjustable feet 2 at the rear side of bottom plate 1 cannot be adjusted, at this time, lengthening adjusting rod 3 is rotated to drive worm 22 to rotate, thereby the leveling work of household appliance can be smoothly carried out. Figure 1

[0069] Those skilled in the art will appreciate that although some of the embodiments described herein include certain features that are not included in other embodiments, the combination of features from different embodiments implies that such combinations are within the scope of the present application and form different embodiments. For example, in the claims of the present application, any one of the claimed embodiments can be used in any combination.

[0070] So far, the technical scheme of the utility model has been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the utility model is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to related technical features without deviating from the principle of the utility model, and the technical scheme after the changes or replacements will fall within the protection scope of the utility model.​​

Claims

1. An adjustable foot, characterized in that, include: The device comprises a fixed component, a worm gear, a worm wheel, and a base. The worm gear is horizontally positioned and rotatably mounted within the fixed component. The worm wheel meshes with the worm gear and is rotatably mounted on the fixed component. The worm wheel has a first through hole extending vertically through it, and a first thread is provided on the inner wall of the first through hole. The base passes through the first through hole and has a second thread that mates with the first thread. The worm gear can drive the worm wheel to rotate, and the base can move up and down vertically as the worm wheel rotates.

2. The adjustable foot according to claim 1, characterized in that, The base includes a base and a vertically arranged support rod. The bottom end of the support rod is fixedly connected to the base or integrally formed therewith. The support rod passes through the first through hole, and the second thread is provided on the support rod.

3. The adjustable foot according to claim 2, characterized in that, The fixing component is provided with a first limiting structure, and the support rod is provided with a second limiting structure. The second limiting structure abuts against the first limiting structure to prevent the support rod from continuing to move downward relative to the fixing component, so as to prevent the second thread from separating from the first thread.

4. The adjustable foot according to claim 3, characterized in that, The fixing component includes a fixing shell and a protective shell. The fixing shell has a first receiving cavity and a second receiving cavity that are connected to each other. The worm and the worm wheel are respectively installed in the first receiving cavity and the second receiving cavity. The bottom wall of the fixing shell has a first opening at a position corresponding to the first through hole, allowing the support rod to pass through. The side wall of the fixing shell has a second opening at a position corresponding to the operating end of the worm. The top of the fixing shell is open. The bottom end of the protective shell is detachably fixed to the top of the fixing shell. The bottom end of the protective shell is open. The top end of the support rod is located inside the protective shell. The first limiting structure is provided in the protective shell.

5. The adjustable foot according to claim 4, characterized in that, The protective shell has two strip-shaped openings extending vertically, located on both sides of the support rod. The bottom end of each strip-shaped opening forms the first limiting structure. The top end of the support rod has a second through hole extending horizontally through the support rod. The second limiting structure is a limiting rod installed in the second through hole. The two ends of the limiting rod are located in the corresponding strip-shaped openings and can move along the length of the strip-shaped openings.

6. The adjustable foot according to claim 5, characterized in that, The protective shell is also provided with a mounting hole that communicates with the top of the strip-shaped opening, and the lateral dimension of the mounting hole is larger than the lateral dimension of the strip-shaped opening.

7. The adjustable foot according to claim 4, characterized in that, The fixed housing is provided with a third limiting structure, which abuts against the base to prevent the support rod from moving further upward relative to the fixed member, thereby preventing the second thread from separating from the first thread; and / or The operating end of the worm gear is provided with an internal hexagonal groove.

8. The adjustable foot according to any one of claims 2 to 7, characterized in that, The base also includes a rubber pad, and the bottom surface of the base is provided with a receiving groove, in which the rubber pad is installed.

9. A household appliance, characterized in that, The appliance includes adjustable feet as described in any one of claims 1 to 8, wherein there are multiple adjustable feet, and the multiple adjustable feet are installed at intervals on the base plate of the household appliance.

10. The household appliance according to claim 9, characterized in that, The household appliance also includes an extension adjustment rod. One end of the extension adjustment rod is fixedly connected to the worm gear of the adjustable foot installed at the first end of the base plate. The other end of the extension adjustment rod extends to the second end of the base plate. The extension adjustment rod can drive the worm gear to rotate. The first end is the end of the base plate near the back of the household appliance, and the second end is the end of the base plate near the front of the household appliance.

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