Bottom foot assembly and clothes processing equipment

Abstract

The utility model relates to the technical field of clothes processing, and provides a bottom foot assembly and clothes processing equipment, and the bottom foot assembly comprises a bottom foot and a supporting piece. The footing comprises a rod body and a base, and the rod body is connected to the upper end of the base; the supporting piece can rotate around the rod body; one of the base and the supporting piece is provided with a first end face and a first protrusion, the other one of the base and the supporting piece is provided with a second end face and a second protrusion, the first protrusion is arranged on the first end face, and the second protrusion is arranged on the second end face; the supporting piece has a pre-tightening state, and when the supporting piece is in the pre-tightening state, the end face, in the circumferential direction, of the first protrusion abuts against the second protrusion. The end face, in the circumferential direction, of the first protrusion abuts against the second protrusion, the second protrusion abuts against the end face, in the circumferential direction, of the first protrusion, the effect of pre-tightening the supporting piece and the base is achieved, meanwhile, excessive rotation of the supporting piece is avoided, and the situation that the pre-tightening force between the supporting piece and the base is too large is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of clothes processing, and in particular to a foot assembly and clothes processing equipment. BACKGROUND

[0002] In the related art, the foot structure of a washing machine is composed of a nut and a bolt with rubber. After assembly on the production line, the nut is connected and fastened with the bolt, and there is a large friction force between the nut and the bolt. When the washing machine needs to be leveled in the later stage test and after-sales, it is very difficult to turn the nut. Even if a gasket is added between the nut and the bolt, the improvement effect is not obvious. CONTENT OF THE UTILITY MODEL

[0003] Therefore, the embodiments of the present application aim to provide a foot assembly and clothes processing equipment, which can improve the problem of excessive friction between two parts when adjusting the height of the foot. The foot assembly comprises:

[0004] a foot comprising a rod body and a base, the rod body being connected to the upper end of the base;

[0005] a support capable of rotating around the rod body; one of the base and the support has a first end face and a first protrusion, the other of the base and the support has a second end face and a second protrusion, the first protrusion is arranged on the first end face, and the second protrusion is arranged on the second end face;

[0006] the support has a pre-tightening state, when the support is in the pre-tightening state, the first protrusion abuts against the second protrusion along the circumferential end face.

[0007] In some embodiments, when the support is in the pre-tightening state, the first protrusion abuts against the second end face along the up-down direction end face.

[0008] In some embodiments, the end face of the first protrusion facing the second end face is an inclined surface.

[0009] In some embodiments, the support is sleeved outside the rod body and is threadedly connected with the rod body.

[0010] In some embodiments, when the support is in the pre-tightening state, the end face of the second protrusion along the up-down direction is spaced apart from the first end face.

[0011] In some embodiments, the base comprises a disc-shaped part and an upper boss, the upper boss is arranged at the upper end of the disc-shaped part, the rod body is connected with the upper end face of the upper boss, and the upper end face of the upper boss is the first end face or the second end face.

[0012] In some embodiments, the foot comprises a flexible pad covering at least the lower end surface of the disc-shaped portion.

[0013] In some embodiments, the disc-shaped portion forms a limiting hole, and a portion of the flexible pad fills the limiting hole.

[0014] In some embodiments, the rod body and the base are integrally formed; and / or, the support is integrally formed.

[0015] In some embodiments, the first protrusions are a plurality of first protrusions, and the plurality of first protrusions are arranged at intervals along the circumferential direction of the first end surface; and / or,

[0016] the second protrusions are a plurality of second protrusions, and the plurality of second protrusions are arranged at intervals along the circumferential direction of the second end surface.

[0017] In some embodiments, the support comprises a support disc and a lower boss, the lower boss is arranged at the lower end of the support disc, and the lower end surface of the lower boss is the first end surface or the second end surface.

[0018] The foot assembly provided by the embodiments of the present application can rotate the support during the assembly process of the production line, so that the support is rotated around the rod body to reach a pre-tightening state. The first protrusions abut the second protrusions along the circumferential direction of the end surface, and the second protrusions abut the first protrusions along the circumferential direction of the end surface, so as to achieve the pre-tightening effect of the support and the base, and at the same time, avoid excessive rotation of the support, and avoid excessive pre-tightening force between the support and the base.

[0019] The embodiments of the present application also provide a clothes processing apparatus, which comprises a body and the foot assembly of any one of the above-mentioned embodiments, and the rod body is connected to the body.

[0020] The clothes processing apparatus provided by the embodiments of the present application has the same beneficial effects as the above-mentioned foot assembly. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 FIG. 1 is a structural schematic diagram of a foot assembly in an embodiment of the present application;

[0022] Figure 2 FIG. 2 is a structural schematic diagram of the foot assembly shown in FIG. 1 from a second perspective; Figure 1

[0023] Figure 3 FIG. 3 is a structural schematic diagram of the foot assembly shown in FIG. 1 from a third perspective; Figure 1

[0024] Figure 4 FIG. 4 is a structural schematic diagram of a foot in an embodiment of the present application;

[0025] Figure 5 FIG. 5 is a structural schematic diagram of the foot shown in FIG. 4 from a second perspective;​​Figure 4 a structural schematic view of the support from a second perspective;

[0026] Figure 6 a structural schematic view of the support from a second perspective;

[0027] Figure 7 a structural schematic view of the support from a second perspective; Figure 6 a structural schematic view of the support from a second perspective;

[0028] Figure 8 a structural schematic view of the support from a second perspective;

[0029] Legend of Reference Signs

[0030] 100, base assembly; 10, base; 20, support; 21, first end face; 22, first protrusion; 23, support disc; 24, lower boss; 11, rod body; 12, base; 121, second end face; 122, second protrusion; 123, disc-shaped part; 123a, limiting hole; 124, upper boss; 200, clothes treatment apparatus; 210, machine body. DETAILED DESCRIPTION

[0031] The embodiments of the present application will be described in further detail below with reference to the accompanying drawings and embodiments. The following embodiments are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0032] It should be noted that, in the embodiments of the present application, down refers to the direction of the ground, and up is opposite to down. In the embodiments of the present application, the orientation or positional relationship such as “upper end”, “lower end”, “up-down direction” and the like is based on the orientation or positional relationship shown in the drawings. It should be understood that these orientation terms are only for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. The present application will be further described in detail below with reference to the drawings and specific embodiments. In addition, the terms “first”, “second”, and the like are only for the purpose of description and cannot be understood as indicating or implying relative importance.

[0033] In the description of the embodiments of the present application, it should be noted that, unless otherwise explicitly specified and limited, the term “connection” should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through an intermediate medium. For those skilled in the art, the specific meaning of the above-mentioned term in the embodiments of the present application can be understood according to the specific circumstances.

[0034] In the description of the specification, the description of the terms "some embodiments", "exemplarily" and the like means that the specific features, structures, materials or characteristics described in combination with the embodiments or examples are contained in at least one of the embodiments or examples of the present application. In the specification, the exemplary description of the above terms does not necessarily refer to the same embodiments or examples. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the person skilled in the art can combine different embodiments or examples described in the present application and the features of different embodiments or examples without contradiction.

[0035] In the related art, the foot structure of the washing machine is composed of a nut and a bolt with rubber. After assembly on the production line, the bolt and the nut are in contact when matched, and the friction force is large. In the case of adjusting the height of the foot or other cases where the nut and the bolt need to be separated, it is difficult to turn the bolt.

[0036] Therefore, the embodiments of the present application provide a foot assembly 100 which can be used in a clothes processing device 200.

[0037] It can be understood that the foot assembly 100 can also be used in other devices placed on a bearing surface. The bearing surface includes but is not limited to the ground, the cabinet surface or other planes.

[0038] Please refer to Figures 1-7 The foot assembly 100 includes a foot 10 and a support 20. The foot 10 includes a rod body 11 and a base 12, and the rod body 11 is connected to the upper end of the base 12. The base 12 is placed on the bearing surface.

[0039] The support 20 can rotate around the rod body 11. That is, the support 20 takes the axis of the rod body 11 as the rotation axis.

[0040] One of the base 12 and the support 20 has a first end face 21 and a first protrusion 22, and the other of the base 12 and the support 20 has a second end face 121 and a second protrusion 122, the first protrusion 22 is arranged on the first end face 21, and the second protrusion 122 is arranged on the second end face 121; the support 20 has a pre-tightening state, and the first protrusion 22 abuts against the second protrusion 122 along the circumferential end face when the support 20 is in the pre-tightening state.

[0041] In some embodiments, the first end face 21 and the second end face 121 are the end faces of the support 20 and the base 12 in the up-down direction.

[0042] In an embodiment, please refer to Figures 4-7The support 20 has a first end surface 21 and a first protrusion 22, and the base 12 has a second end surface 121 and a second protrusion 122. The first protrusion 22 is arranged on the first end surface 21, and the second protrusion 122 is arranged on the second end surface 121. In another embodiment not shown, the base has a first end surface and a first protrusion, and the support has a second end surface and a second protrusion. The first protrusion is arranged on the first end surface, and the second protrusion is arranged on the second end surface.

[0043] The embodiments of the present application also provide a laundry treating apparatus 200, please refer to Figure 8 , which comprises a body 210 and the base assembly 100 in any of the embodiments of the present application. The rod 11 is connected to the body 210. The height of the body 210 can be adjusted by adjusting the base 10.

[0044] For example, the base 12 can be arranged below the body 210, and the rod 11 can be threadedly connected to the body 210.

[0045] The type of the laundry treating apparatus 200 is not limited, and the laundry treating apparatus 200 can be a washing machine, a washer-dryer, a spin dryer, a washer-dryer combination, or a dryer, etc. During the production line assembly process, the support 20 can be rotated to rotate the support 20 around the rod 11 to a pre-tightening state. The first protrusion 22 abuts against the second protrusion 122 along the circumferential end surface, and the second protrusion 122 abuts against the first protrusion 22 along the circumferential end surface, so as to achieve the pre-tightening effect of the support 20 and the base 12, and at the same time, avoid excessive rotation of the support 20 and excessive pre-tightening force between the support 20 and the base 12.

[0046] During the installation of the laundry treating apparatus 200 in a house, leveling requirements may arise, that is, the requirement of adjusting the base 10 to change the height of the body 210. The base assembly 100 can be used to adjust the height of the body 210 of the laundry treating apparatus 200, and the height of the body 210 can be adjusted by adjusting the relative position of the base 10 and the body 210. For example, the longer the length of the rod 11 in the body 210, the smaller the distance between the body 210 and the base 12, the closer the body 210 to the ground, and the smaller the height of the body 210. The shorter the length of the rod 11 in the body 210, the greater the distance between the body 210 and the base 12, the farther the body 210 from the ground, and the greater the height of the body 210.

[0047] After adjusting the base 10, the support 20 can be rotated to abut against the lower end surface of the body 210, and the support 20 and the base 10 jointly support the body 210. It can be understood that during the installation of the laundry treating apparatus 200 in a house, if there is no leveling requirement, the base 10 can also not be adjusted, but the support 20 can still be rotated to abut against the lower end surface of the body 210.

[0048] In this embodiment, during the assembly process of the production line, the support 20 can be rotated so that the support 20 is rotated around the rod body 11 to a pre-tightening state. The first protrusion 22 abuts against the circumferential end face of the second protrusion 122, and the second protrusion 122 abuts against the circumferential end face of the first protrusion 22, so as to achieve the pre-tightening effect of the support 20 and the base 12, while avoiding excessive rotation of the support 20 and excessive pre-tightening force between the support 20 and the base 12.

[0049] It should be noted that the installation into the house refers to the installation of the clothes treatment equipment 200 into the user's house for use.

[0050] In some embodiments, the support 20 is in a pre-tightening state, and the end face of the first protrusion 22 in the up-down direction abuts against the second end face 121.

[0051] In the pre-tightening state of the support 20, during the rotation of the support 20 and / or the foot 10, the end face of the first protrusion 22 in the up-down direction abuts against the second end face 121, achieving the pre-tightening effect of the support 20 and the base 12. The contact area of the end face of the first protrusion 22 in the up-down direction and the second end face 121 is relatively small, and compared with the contact area of the end faces of the nut and the bolt in the related art, the contact area of the first protrusion 22 and the second end face 121 is relatively small, which can effectively reduce the frictional damping and the friction between the support 20 and the foot 10, facilitating the rotation of the support 20 and / or the foot 10 when the support 20 and / or the foot 10 need to be rotated.

[0052] In some embodiments, the end face of the first protrusion 22 facing the second end face 121 is a bevel, and the end of the bevel close to the second protrusion 122 gradually inclines to the direction close to the second end face 121. The second end face 121 and the first protrusion 22 can be obliquely connected, facilitating the rotation of the support 20 to the pre-tightening state and improving the pre-tightening effect.

[0053] In some embodiments, the support 20 is sleeved on the rod body 11 and is threadedly connected with the rod body 11.

[0054] In this embodiment, the rod body 11 has external threads on the surface, and the support 20 has a first threaded hole, and the rod body 11 is threadedly connected with the first threaded hole.

[0055] For example, the lower end of the body 210 of the clothes treatment equipment 200 has a second threaded hole, and the rod body 11 is threadedly connected with the second threaded hole. When the height of the clothes treatment equipment 200 is adjusted, the depth of the rod body 11 screwed into the threaded hole is adjusted to adjust the height of the body 210. After adjustment, the support 20 is rotated towards the direction of the body 210, and the support 20 abuts against the lower end face of the body 210 to support the body 210 together with the rod body 11.

[0056] In some embodiments, the support 20 is in a pre-tightened state, and the second protrusion 122 is spaced apart from the first end surface 21 in the up-down direction. In this way, the contact area between the support 20 and the base 12 can be further reduced, and thus the friction between the support 20 and the base 12 can be reduced.

[0057] In some embodiments, the base 12 includes a disc-shaped portion 123 and an upper boss 124, the upper boss 124 is disposed at the upper end of the disc-shaped portion 123, the rod body 11 is connected to the upper end surface of the upper boss 124, and the upper end surface of the upper boss 124 is the first end surface or the second end surface. That is, the first protrusion or the second protrusion can be disposed on the upper end surface of the upper boss 124. For example, referring to Figure 1 the upper end surface of the upper boss 124 is the second end surface 121, and the second protrusion 122 is disposed on the upper end surface of the upper boss 124.

[0058] In this embodiment, the disc-shaped portion 123 can increase the contact area between the base 12 and the bearing surface, such as the ground, improve the bearing capacity of the base 12, and reduce the possibility of damage due to insufficient structural strength of the base 12.

[0059] It can be understood that when the base has the first end surface and the first protrusion, and the support has the second end surface and the second protrusion, the upper end surface of the upper boss is the first end surface; as Figures 4-7 shown, when the base 12 has the second end surface 121 and the second protrusion 122, and the support 20 has the first end surface 21 and the first protrusion 22, the upper end surface of the upper boss 124 is the second end surface 121.

[0060] In some embodiments, the foot 10 includes a flexible pad, and the flexible pad covers at least the lower end surface of the disc-shaped portion 123.

[0061] In this embodiment, the flexible pad can play a role in buffering and shock absorption, and can also reduce the possibility of causing wear and scratches on the floor. When the laundry treatment apparatus 200 is in operation, the possibility of the laundry treatment apparatus 200 sliding is reduced. When the laundry treatment apparatus 200 is moved, the floor can be protected, and noise can be reduced.

[0062] The flexible pad is a structure that can play a role in buffering through elastic deformation. The flexible pad can be made of a flexible material, including but not limited to rubber and / or silicone, and the like.

[0063] The projection shape of the disc-shaped portion 123 on the horizontal plane is not limited, and exemplary projection shapes of the disc-shaped portion 123 on the horizontal plane include but are not limited to a circular shape, an elliptical shape, or a polygonal shape, and the like.

[0064] In some embodiments, the projection area of the upper boss 124 on the horizontal plane is smaller than the projection area of the disc-shaped portion 123.

[0065] In some embodiments, referring toFigures 4-5 The disc-shaped portion 123 forms a limiting hole 123a, and the flexible pad fills part of the limiting hole 123a.

[0066] In this way, the stability of the connection between the flexible pad and the disc-shaped portion 123 can be increased, the friction between the flexible pad and the disc-shaped portion 123 can be increased, the laundry treating apparatus 200 can be more stable when placed, and the possibility of shaking or tilting can be reduced.

[0067] In some embodiments, the rod body 11 and the base 12 are integrally formed. In this way, the structural stability and durability of the foot 10 can be enhanced, no additional connecting member is needed, and the overall structural strength of the foot 10 is stronger. Meanwhile, the integrally formed design can simplify the installation process, facilitate processing and production, and improve production efficiency.

[0068] The rod body 11 and the base 12 can be made of metal, for example, stainless steel.

[0069] In some embodiments, the support 20 is integrally formed. In this way, the structural stability and durability of the support 20 can be enhanced, no additional connecting member is needed, and the overall structural strength of the support 20 is stronger. Meanwhile, the integrally formed design can simplify the installation process, facilitate processing and production, and improve production efficiency.

[0070] The support 20 can be made of metal, for example, stainless steel.

[0071] Exemplarily, the foot 10 is a bolt, the rod body 11 is a bolt rod, and the base 12 is a bolt cap.

[0072] Exemplarily, the support 20 is a nut. The bolt and the nut are threadedly connected, the height of the foot assembly 100 is adjusted by adjusting the position of the nut on the bolt, and the height of the machine body 210 is adjusted.

[0073] In some embodiments, the number of the first protrusions 22 is a plurality, and the plurality of first protrusions 22 are arranged along the circumference of the first end face 21 at intervals. The plurality of first protrusions 22 can improve the fastening effect of the support 20 on the foot 10 in the pre-tightened state.

[0074] In some embodiments, the number of the second protrusions 122 is a plurality, and the plurality of second protrusions 122 are arranged along the circumference of the second end face 121 at intervals.

[0075] In this embodiment, the plurality of second protrusions 122 are provided, so that the fastening effect of the support 20 on the foot 10 in the pre-tightened state can be improved. In some embodiments, one first protrusion 22 can correspond to one second protrusion 122. Exemplarily, the number of the first protrusions 22 and the number of the second protrusions 122 are both plural. The base 12 has the second end face 121 and the plurality of second protrusions 122, wherein the second end face 121 is divided into multiple segments by the plurality of second protrusions 122. The second protrusion 122 has a third end face in the circumferential direction, and the third end face abuts against the first protrusion 22.

[0076] Exemplarily, please refer to Figures 4-7 , the number of the first protrusions 22 and the number of the second protrusions 122 are both two. The base 12 has the second end face 121 and the two second protrusions 122, wherein the second end face 121 is divided into two segments by the two second protrusions 122. The second protrusion 122 has a third end face in the circumferential direction, and the third end face abuts against the first protrusion 22.

[0077] In some embodiments, the projection area of the first protrusion 22 on the horizontal plane is smaller than the projection area of the first end face 21. The projection area of the second protrusion 122 on the horizontal plane is smaller than the projection area of the second end face 121.

[0078] The projection shape of the first protrusion 22 on the first end face 21 is not limited, and exemplarily, the projection shape of the first protrusion 22 on the first end face 21 is a sector or a trapezoid, etc.

[0079] The projection shape of the second protrusion 122 on the second end face 121 is not limited, and exemplarily, the projection shape of the second protrusion 122 on the second end face 121 is a sector or a trapezoid, etc.

[0080] In some embodiments, the support 20 comprises the support disc 23 and the lower boss 24, and the lower boss 24 is arranged at the lower end of the support disc 23. The lower end face of the lower boss 24 is the first end face or the second end face. That is, the first protrusion or the second protrusion can be arranged on the lower end face of the lower boss 24. For example, please refer to Figures 4-7 , the lower end face of the lower boss 24 is the first end face 21, and the first protrusion 22 is arranged on the lower end face of the lower boss 24.

[0081] In this way, the support 20 is rotated so that the support disc 23 abuts against the lower end face of the body 210. The body 210 of the clothes treatment apparatus 200 is supported by the support disc 23, so that the carrying capacity of the support 20 is improved, and the possibility that the structure of the support 20 is insufficient and is crushed by the body 210 is reduced.

[0082] The projection shape of the supporting disc 23 on the horizontal plane is not limited, and exemplary, the projection shape of the supporting disc 23 on the horizontal plane includes but is not limited to a circle, an ellipse or a polygon, etc. It can be understood that when the base has a first end surface and a first protrusion, and the supporting member has a second end surface and a second protrusion, the lower end surface of the lower boss is the second end surface; when the base 12 has a second end surface 121 and a second protrusion 122, and the supporting member 20 has a first end surface 21 and a first protrusion 22, the lower end surface of the lower boss 24 is the first end surface 21.

[0083] It can be understood that when the supporting member 20 rotates relative to the base 12, the supporting member 20 can be manually held and forced to rotate, or a wrench or other tool can be used to clamp the lower boss 24 to rotate to rotate the supporting member 20.

[0084] In some embodiments, the projection area of the lower boss 24 on the horizontal plane is smaller than the projection area of the supporting disc 23.

[0085] Exemplarily, the shape of the lower boss 24 is a hexagonal prism, so that it can be convenient to clamp the lower boss 24 with a wrench or other tool to force.

[0086] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A footing assembly, characterized by, The base foot comprises: a stem connected to an upper end of a base; a support rotatable about the stem; one of the base and the support has a first end face and a first protrusion, and the other of the base and the support has a second end face and a second protrusion, the first protrusion being arranged on the first end face, and the second protrusion being arranged on the second end face; the support has a pre-tightened state, in which the first protrusion abuts the second protrusion along a circumferential end face.

2. The foot assembly of claim 1, wherein the support has the pre-tightened state, in which the first protrusion abuts the second end face along an up-down end face.

3. The foot assembly of claim 2, wherein, an end face of the first protrusion facing the second end face is a bevel.

4. The foot assembly of claim 1, wherein the support is sleeved outside the stem and is threadedly connected to the stem.

5. The foot assembly of claim 1, wherein the support has the pre-tightened state, in which an up-down end face of the second protrusion is spaced apart from the first end face.

6. The foot assembly of claim 1, wherein the base comprises a disc-shaped portion and an upper boss arranged at an upper end of the disc-shaped portion, the stem is connected to an upper end face of the upper boss, and the upper end face of the upper boss is the first end face or the second end face.

7. The foot assembly of claim 6, wherein, the base foot comprises a flexible pad covering at least a lower end face of the disc-shaped portion.

8. The foot assembly of claim 7, wherein, the disc-shaped portion forms a limiting hole, and a part of the flexible pad fills the limiting hole.

9. The foot assembly of claim 1, wherein, the stem and the base are integrally formed; and / or, the support is integrally formed.

10. The foot assembly of any one of claims 1 to 9, wherein, a plurality of the first protrusions are arranged at intervals along a circumferential direction of the first end face; and / or, a plurality of the second protrusions are arranged at intervals along a circumferential direction of the second end face.

11. The foot assembly of any one of claims 1 to 9, wherein, the support comprises a support disc and a lower boss arranged at a lower end of the support disc, and a lower end face of the lower boss is the first end face or the second end face. 12.A laundry treating apparatus, characterized by, The base foot comprises: a stem connected to an upper end of a base; a support rotatable about the stem; one of the base and the support has a first end face and a first protrusion, and the other of the base and the support has a second end face and a second protrusion, the first protrusion being arranged on the first end face, and the second protrusion being arranged on the second end face; the support has a pre-tightened state, in which the first protrusion abuts the second protrusion along a circumferential end face. the support has the pre-tightened state, in which the first protrusion abuts the second end face along an up-down end face. an end face of the first protrusion facing the second end face is a bevel. the support is sleeved outside the stem and is threadedly connected to the stem. the support has the pre-tightened state, in which an up-down end face of the second protrusion is spaced apart from the first end face. the base comprises a disc-shaped portion and an upper boss arranged at an upper end of the disc-shaped portion, the stem is connected to an upper end face of the upper boss, and the upper end face of the upper boss is the first end face or the second end face. the base foot comprises a flexible pad covering at least a lower end face of the disc-shaped portion. the disc-shaped portion forms a limiting hole, and a part of the flexible pad fills the limiting hole. the stem and the base are integrally formed; and / or, the support is integrally formed. a plurality of the first protrusions are arranged at intervals along a circumferential direction of the first end face; and / or, a plurality of the second protrusions are arranged at intervals along a circumferential direction of the second end face. the support comprises a support disc and a lower boss arranged at a lower end of the support disc, and a lower end face of the lower boss is the first end face or the second end face. The base foot comprises: a stem connected to an upper end of a base; a support rotatable about the stem; one of the base and the support has a first end face and a first protrusion, and the other of the base and the support has a second end face and a second protrusion, the first protrusion being arranged on the first end face, and the second protrusion being arranged on the second end face; the support has a pre-tightened state, in which the first protrusion abuts the second protrusion along a circumferential end face. the support has the pre-tightened state, in which the first protrusion abuts the second end face along an up-down end face. an end face of the first protrusion facing the second end face is a bevel. the support is sleeved outside the stem and is threadedly connected to the stem. the support has the pre-tightened state, in which an up-down end face of the second protrusion is spaced apart from the first end face. the base comprises a disc-shaped portion and an upper boss arranged at an upper end of the disc-shaped portion, the stem is connected to an upper end face of the upper boss, and the upper end face of the upper boss is the first end face or the second end face. the base foot comprises a flexible pad covering at least a lower end face of the disc-shaped portion. the disc-shaped portion forms a limiting hole, and a part of the flexible pad fills the limiting hole. the stem and the base are integrally formed; and / or, the support is integrally formed. a plurality of the first protrusions are arranged at intervals along a circumferential direction of the first end face; and / or, a plurality of the second protrusions are arranged at intervals along a circumferential direction of the second end face. the support comprises a support disc and a lower boss arranged at a lower end of the support disc, and a lower end face of the lower boss is the first end face or the second end face. The base foot comprises: a stem connected to an upper end of a base; a support rotatable about the stem; one of the base and the support has a first end face and a first protrusion, and the other of the base and the support has a second end face and a second protrusion, the first protrusion being arranged on the first end face, and the second protrusion being arranged on the second end face; the support has a pre-tightened state, in which the first protrusion abuts the second protrusion along a circumferential end face. the support has the pre-tightened state, in which the first protrusion abuts the second end face along an up-down end face. an end face of the first protrusion facing the second end face is a bevel. the support is sleeved outside the stem and is threadedly connected to the stem. the support has the pre-tightened state, in which an up-down end face of the second protrusion is spaced apart from the first end face. the base comprises a disc-shaped portion and an upper boss arranged at an upper end of the disc-shaped portion, the stem is connected to an upper end face of the upper boss, and the upper end face of the upper boss is the first end face or the second end face. the base foot comprises a flexible pad covering at least a lower end face of the disc-shaped portion. the disc-shaped portion forms a limiting hole, and a part of the flexible pad fills the limiting hole. the stem and the base are integrally formed; and / or, the support is integrally formed. a plurality of the first protrusions are arranged at intervals along a circumferential direction of the first end face; and / or, a plurality of the second protrusions are arranged at intervals along a circumferential direction of the second end face. the support comprises a support disc and a lower boss arranged at a lower end of the support disc, and a lower end face of the lower boss is the first end face or the second end face. The base foot comprises: a stem connected to an upper end of a base; a support rotatable about the stem; one of the base and the support has a first end face and a first protrusion, and the other of the base and the support has a second end face and a second protrusion, the first protrusion being arranged on the first end face, and the second protrusion being arranged on the second end face; the support has a pre-tightened state, in which the first protrusion abuts the second protrusion along a circumferential end face. the support has the pre-tightened state, in which the first protrusion abuts the second end face along an up-down end face. an end face of the first protrusion facing the second end face is a bevel. the support is sleeved outside the stem and is threadedly connected to the stem. the support has the pre-tightened state, in which an up-down end face of the second protrusion is spaced apart from the first end face. the base comprises a disc-shaped portion and an upper boss arranged at an upper end of the disc-shaped portion, the stem is connected to an upper end face of the upper boss, and the upper end face of the upper boss is the first end face or the second end face. the base foot comprises a flexible pad covering at least a lower end face of the disc-shaped portion. the disc-shaped portion forms a limiting hole, and a part of the flexible pad fills the limiting hole. the stem and the base are integrally formed; and / or, the support is integrally formed. a plurality of the first protrusions are arranged at intervals along a circumferential direction of the first end face; and / or, a plurality of the second protrusions are arranged at intervals along a circumferential direction of the second end

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