A washing machine's foot and washing machine

Abstract

The utility model discloses a washing equipment's bottom foot and washing equipment, include: bolt, it has the bolt head and screw rod of integrated molding, nut, its sleeve sets up on screw rod, base, it has the base main body of covering bolt head and the annular extension portion of the outer edge of base main body outward extending arrangement, base adopts elastic material to make. The annular extension portion of base outward extends along the outer edge of base main body, significantly expands the contact area with ground / platform. Base adopts elastic material, and the deformation ability of itself can absorb part vibration energy produced when washing machine operates, reduces the transmission efficiency of vibration to ground, reduces the noise of rigid collision of fuselage. Through the bolt head is covered by base main body, can shorten the overall height under the premise of guaranteeing support strength. The reduction of bottom foot height can directly convert into the available space inside washing machine shell, makes the whole machine height keep invariant, and accommodates larger capacity inner tube under the condition.

Description

Technical Field

[0001] This utility model belongs to the field of washing equipment technology, specifically relating to a base of a washing device and a washing device having the base. Background Technology

[0002] With the development of technology, people's requirements for quality of life are increasing. The vibration and noise experience of home appliances such as washing machines is also receiving more and more attention from users. Vibration and noise have become an important indicator for measuring the performance and competitiveness of washing machine products.

[0003] The feet are an important component of a washing machine. Installed at the bottom of the washing machine body, they contact the machine's placement surface, such as the ground or countertop, and primarily serve to support and stabilize the machine. When the washing machine is running, uneven distribution of clothes inside the drum creates eccentricity, subjecting the drum to periodic excitation forces with varying loads and directions, resulting in vibration. The greater the eccentricity caused by the clothes, the greater the drum's amplitude of vibration. Existing feet have a small contact area with the ground or countertop, resulting in low friction and weak adhesion. When the washing machine is at its resonant speed or maximum speed during the spin cycle, it is prone to excessive vibration or even displacement under the influence of eccentric forces.

[0004] Furthermore, as washing machines are developing towards larger capacity designs, in order to achieve the best washing and care experience at a specific overall height, a foot is needed that can reduce the overall height of the washing machine so that the reduced height of the foot can be transferred to the interior of the washing machine casing, increasing the usable volume inside the casing, while the overall height of the washing machine remains unchanged.

[0005] The information disclosed in this background section is only intended to enhance the understanding of the background technology of this application, and therefore may include prior art that is not known to those skilled in the art. Summary of the Invention

[0006] This invention addresses the aforementioned problems in the prior art by proposing a base for a washing machine that improves the stability and vibration reduction / noise reduction capabilities of the washing machine by increasing the contact area.

[0007] To achieve the above-mentioned objectives, the present invention employs the following technical solution: A base for a washing device, comprising: A bolt, which has a bolt head and a threaded shank formed in one piece; A nut, which is fitted onto the screw; The base has a base body that covers the bolt head and an annular extension that extends outward along the outer edge of the base body; The base is made of elastic material.

[0008] In some embodiments of this application, the extension is inclined downward in an outward direction, and the bottom surface of the base body and the extension form a cavity that can generate negative pressure.

[0009] In some embodiments of this application, the outer side of the extension is circular, and the thickness of the extension gradually decreases in the outward direction.

[0010] In some embodiments of this application, the inner side of the extension is connected to the lower outer side of the base body, and the extension is provided with an upward protrusion and a plurality of reinforcing ribs spaced apart, the reinforcing ribs being connected to the outer side of the base body.

[0011] In some embodiments of this application, the reinforcing ribs gradually increase in height in the direction close to the base body.

[0012] In some embodiments of this application, the inwardly raised dimension of the extension is smaller than the inwardly extended dimension of the extension.

[0013] In some embodiments of this application, the ratio of the inwardly raised dimension of the extension to the inwardly extended dimension of the extension is less than 1 / 2.

[0014] The inward tilt angle of the extension is less than 20°.

[0015] In some embodiments of this application, the base body is provided with a receiving cavity that matches the bolt head, the receiving cavity having an extension for the bolt to extend.

[0016] In some embodiments of this application, a plurality of through holes are provided on the bolt head, and the base has a limiting post located in the through holes, with both ends of the limiting post connected to the inner wall of the receiving cavity.

[0017] In some embodiments of this application, the through holes are arranged vertically.

[0018] In some embodiments of this application, a matching concave-convex structure is provided between the bolt head and the receiving cavity. The concave-convex structure is a rib provided on one of the bolt head and the inner wall of the receiving cavity, and a groove on the other of the bolt head and the inner wall of the receiving cavity that matches the rib. The rib is located in the groove.

[0019] In some embodiments of this application, the base body is provided with a clearance groove for avoiding the nut, and the nut may be partially located in the clearance groove; the clearance groove is connected to the protrusion.

[0020] Based on the aforementioned base, this utility model also provides a washing device with the aforementioned base, which improves the stability of the washing machine and its vibration reduction and noise reduction capabilities by increasing the contact area.

[0021] A washing device having a housing and the aforementioned feet connected to the lower end of the housing.

[0022] Compared with existing technologies, the advantages and positive effects of this utility model are as follows: The annular extension of the base extends outward along the outer edge of the base body, significantly expanding the contact area with the ground / countertop. Increased contact area improves the static friction between the feet and the contact surface, reducing the tendency of the washing machine to slide under eccentric loads. The base is made of elastic material, whose deformation capacity absorbs some of the vibration energy generated during washing machine operation, reducing the efficiency of vibration transmission to the ground and reducing noise caused by rigid collisions. By covering the bolt heads with the base body, the overall height can be shortened while maintaining support strength. The reduced foot height directly translates into usable space inside the washing machine casing, allowing for a larger capacity inner drum while maintaining the same overall height. The bolt heads being covered by the base body, along with the cooperation of the nut and screw, enables height adjustment. The overall structure requires no additional complex components, facilitating mass production and installation, and reducing manufacturing costs. The metal bolts provide rigid support, ensuring the foot's load-bearing capacity; the elastic base absorbs vibration and increases friction through deformation. The combination of these two elements ensures structural strength while optimizing vibration reduction and anti-slip effects.

[0023] Other features and advantages of this utility model will become clearer after reading the detailed embodiments of this utility model in conjunction with the accompanying drawings. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0025] Figure 1 This is a schematic diagram of the structure of one embodiment of the base of a washing device proposed in this utility model; Figure 2 for Figure 1 Front view structural diagram; Figure 3 for Figure 2 A perspective structural diagram; Figure 4 for Figure 3 Enlarged structural diagram of region A in the middle; Figure 5 for Figure 1A schematic diagram of the exploded structure; Figure 6 This is a schematic diagram of the bolt structure; Figure 7 This is a schematic diagram of the base structure; Figure 8 for Figure 1 A schematic diagram of the cross-sectional structure; Figure 9 for Figure 8 A structural diagram from another angle; Among them, the base is 100; Bolt 10; Bolt head 11; Through hole 111; Thread 12; Nut 20; Base 30; Base body 31; Receiving cavity 311; Extension 3111; Limiting post 312; Circumvention groove 313; Extension 32; Cavity 33; Reinforcing rib 34; Gasket 40. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings.

[0027] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," and "right," etc., indicate the orientation or positional relationship based on the positional relationship shown in the accompanying drawings, with the direction closer to the base axis being "inner" and the opposite being "outer." These terms are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance; features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] The following disclosure provides many different embodiments or examples for implementing various structures of this invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0031] Whenever possible, the various aspects and features described and shown in the specification can be applied individually, and these individual aspects can serve as the subject of a divisional application.

[0032] See Figures 1-9 This is one embodiment of a washing device base proposed in this utility model. The base 100 of the washing device includes: a bolt 10, a nut 20, and a base 30. The bolt 10 has an integrally formed bolt head 11 and a threaded rod 12; the nut 30 is sleeved on the threaded rod 12, and the nut 30 and the threaded rod 12 are connected by threads. The base 30 has a base body 31 covering the bolt head 11, and an annular extension 32 extending outward along the outer edge of the base body 31; the base 30 is made of an elastic material. A washer 40 may be provided below the nut 30, and the washer 40 is sleeved on the outside of the threaded rod 12.

[0033] In this embodiment, the annular extension 32 of the base 30 extends outward along the outer edge of the base body 31, significantly expanding the contact area with the ground / countertop. The increased contact area improves the static friction between the feet 30 and the contact surface, reducing the tendency of the washing machine to slide under eccentric loads. The base 30 is made of an elastic material, such as rubber or silicone. The deformation capacity of the base 30 absorbs some of the vibration energy generated during the washing machine's operation, reducing the efficiency of vibration transmission to the ground and minimizing noise from rigid impacts. The bolt head 11 is covered by the base body 31, shortening the overall height while maintaining support strength. This reduction in the height of the feet 100 directly translates into usable space inside the washing machine casing, allowing for a larger capacity inner drum while maintaining the same overall height. The bolt head 11 is covered by the base body 31, and the engagement of the nut 20 and screw 12 enables height adjustment. The overall structure requires no additional complex components, facilitating mass production and installation, and reducing manufacturing costs. Bolt 10 and nut 20 are made of metal. The metal bolt 20 provides rigid support to ensure the load-bearing capacity of the base. The elastic base 30 absorbs vibration and increases friction through deformation. The combination of the two ensures structural strength and optimizes the vibration reduction and anti-slip effect.

[0034] In some embodiments of this application, the extension 32 is inclined downwards in an outward direction, and the bottom surface of the base body 31 and the extension 32 form a cavity 33 that can generate negative pressure. When the foot 100 is pressed, the air in the cavity 33 is squeezed out. During the release or vibration process, the volume of the cavity 33 recovers slightly, and the internal air pressure is lower than the external atmospheric pressure, producing a suction cup effect. This negative pressure firmly adheres the foot 100 to the ground, effectively resisting horizontal impact forces during high-speed spin-drying of the washing machine. The extension 32 is inclined outwards and downwards, and the vibration or thrust generated by the operation of the washing machine will cause the inclined extension 32 to fit more tightly against the ground. Combined with the deformation of the elastic material, the contact area and the actual contact pressure are increased. When the vibration of the washing machine is transmitted to the foot 100, the extension 32 will absorb some of the vibration energy through the deformation in the downward tilt direction, reducing the transmission of vibration to the ground and reducing the noise generated by the resonance between the machine body and the ground. The air layer inside the negative pressure cavity 33 can act as a gas buffer layer. When vibration is transmitted through the base body 31, the air inside the cavity 33 is compressed or expanded, further attenuating the intensity of the vibration wave. The outward and downward tilting design of the extension 32 allows the support range of the feet to spread from the center to the surrounding area, forming an umbrella-shaped load-bearing structure, which distributes the weight of the washing machine more evenly on the contact surface.

[0035] In some embodiments of this application, the outer side of the extension 32 is circular, and the thickness of the extension 32 gradually decreases in the outward direction. The circular shape of the extension 32 ensures symmetry, so that regardless of the slight rotation or displacement of the washing machine due to vibration, the contact area between the extension 32 and the ground remains uniformly distributed, avoiding localized force imbalance caused by shape asymmetry. The gradual decrease in thickness of the extension 32 outward makes the edge thinner and more flexible. When the washing machine vibrates or there are slight protrusions on the contact surface, the thinner edge can deform more flexibly, tightly fitting the uneven areas of the contact surface, while the thicker inner part still maintains sufficient support strength. Furthermore, it facilitates negative pressure adsorption; the thinner outer edge is more likely to form a seal with the ground under pressure, reducing air leakage within the cavity 33. The circular outer edge of the extension 32 makes the air pressure distribution within the cavity 33 more uniform, ensuring that the negative pressure adsorption force acts stably throughout the entire contact area, increasing the grip of the feet 100.

[0036] In some embodiments of this application, the inner side of the extension 32 is connected to the lower outer side of the base body 31. The extension 32 has upwardly protruding reinforcing ribs 34 spaced apart, with the inner side of each rib connected to the outer side of the base body 31. The multiple upwardly protruding reinforcing ribs 34 connect the base body 31 and the extension 32, forming a radial support structure. The reinforcing ribs 34 can disperse the radial and axial forces on the extension, limiting the irregular deformation of the extension 32 and ensuring its stable operation within its elastic range. The upwardly protruding design of the reinforcing ribs 34, with their inner connection to the base body 31, prevents the extension 32 from excessively bulging outwards under pressure or vibration, ensuring the stability of the cavity 33's contour and maintaining a negative pressure environment. The reinforcing ribs 34 increase the support for the extension 32.

[0037] In some embodiments of this application, the reinforcing rib 34 may be made of the same elastic material as the extension 32. Alternatively, the elastic material used for the reinforcing rib 34 may have a stiffness greater than that used for the extension 32.

[0038] In some embodiments of this application, the reinforcing rib 34 gradually increases in height towards the base body 31. The force generated by the weight and vibration of the washing machine is mainly transmitted to the extension 32 through the base body 31, with the area closer to the base body 31 experiencing greater stress. The higher protrusion of the reinforcing rib 34 near the base body 31 provides stronger rigid support; while the stress is gradually dispersed in areas farther from the base body 31, and the height of the reinforcing rib 34 decreases, avoiding excessive reinforcement that could reduce the flexible fit of the edge of the extension 32.

[0039] In some embodiments of this application, the inwardly raised dimension of the extension 32 is smaller than the inwardly extending dimension of the extension 32. The ratio of the inwardly raised dimension of the extension 32 to the inwardly extending dimension of the extension 32 is less than 1 / 2. The inwardly extending angle of the extension 32 is less than 20°.

[0040] In some embodiments of this application, a receiving cavity 311 matching the bolt head 11 is provided on the base body 31. The bolt head 11 is located within the receiving cavity 311, and the receiving cavity 311 has an extension opening 3111 for the bolt 12 to extend. The base 30 is formed by compression molding, in which the bolt 10 is placed into the mold and then formed. The shape of the receiving cavity 311 matches the bolt head 20, which can completely enclose and limit the bolt head, preventing the bolt from rotating or moving axially relative to the base during the vibration of the washing machine. When the weight or vibration load of the washing machine is transmitted to the foot 100, the stress can be evenly distributed to various parts of the bolt head 11 through the base 30, avoiding cracking of the base 30 due to local stress concentration. During the compression molding process of the base 30, the elastic material is tightly bonded to the bolt head 11 under pressure, without air bubbles or gaps, further improving the connection strength and structural integrity of the two. During the molding process, the mold can precisely control the size of the receiving cavity 311 and the extension opening 3111 to ensure the fitting accuracy between the bolt 10 and the base 30.

[0041] In some embodiments of this application, multiple through holes 111 are provided on the bolt head 11, and the base 30 has a limiting post 312 located within the through holes 111. Both ends of the limiting post 312 are connected to the inner wall of the receiving cavity 311. The through holes 111 are arranged vertically, meaning that both ends of the limiting post 312 are connected to the bottom and top of the receiving cavity 311, respectively. The limiting post 312 penetrates the through holes 111 and connects to the inner wall of the receiving cavity 311, directly restricting the movement of the bolt head 11 within the receiving cavity 311. The cavity 33 enclosed by the base body 31 and the extension 32 requires a stable structural form to maintain negative pressure; if the connection between the bolt 10 and the base 30 becomes loose, it may cause deformation of the base material near the receiving cavity 311, compromising the sealing performance of the cavity 33. The limiting post 312, by strengthening the connection rigidity between the bolt 10 and the base 30, reduces the risk of deformation in this area, indirectly assisting the cavity in maintaining a stable air pressure environment and ensuring the negative pressure adsorption effect.

[0042] In some embodiments of this application, a matching concave-convex structure is provided between the bolt head 11 and the receiving cavity 311. The concave-convex structure consists of a rib on the bolt head 11 and a groove on the inner wall of the receiving cavity 311. The rib and the groove are matched and the rib is located in the groove. This helps to increase the contact area between the bolt head 11 and the receiving cavity 311 and increase stability.

[0043] In other embodiments of this application, the concave-convex structure may also be a rib provided on the inner wall of the receiving cavity 311, or a groove provided on the bolt head 11.

[0044] In some embodiments of this application, a clearance groove 313 is provided on the base body 31 to allow the nut 20 to pass. The nut 20 may be partially or completely located within the clearance groove 313. The clearance groove 313 is connected to the protrusion 3111. The diameter of the clearance groove 313 is larger than the outer diameter of the nut 20. After the nut 20 is tightened, it can fall into the clearance groove 313, shortening the vertical distance from the bottom of the base 30 to the top of the nut 20, thereby reducing the overall height of the washing machine. The lower part of the nut 20 is located within the clearance groove 313. The diameter of the clearance groove 313 is larger than the outer diameter of the nut 20, providing sufficient space for the installation and adjustment of the nut 20. Users can easily rotate the nut 20 to fine-tune the height of the base 100.

[0045] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions claimed by this utility model.

Claims

1. A base for a washing device, characterized in that, include: A bolt, which has a bolt head and a threaded shank formed in one piece; A nut, which is fitted onto the screw; The base has a base body that covers the bolt head and an annular extension that extends outward along the outer edge of the base body; The base is made of elastic material.

2. The base according to claim 1, characterized in that, The extension is inclined downward in the outward direction, and the bottom surface of the base body and the extension form a cavity that can generate negative pressure.

3. The base according to claim 1, characterized in that, The outer side of the extension is circular, and the thickness of the extension gradually decreases in the outward direction.

4. The base according to claim 1, characterized in that, The inner side of the extension is connected to the lower outer side of the base body. The extension has an upward protrusion and multiple reinforcing ribs spaced apart. The reinforcing ribs are connected to the outer side of the base body.

5. The base according to claim 4, characterized in that, The reinforcing ribs gradually increase in height as they protrude closer to the base body.

6. The foot according to any one of claims 1 to 5, characterized in that, The base body is provided with a receiving cavity that matches the bolt head, and the receiving cavity has an extension for the bolt to extend.

7. The foot according to claim 6, characterized in that, Multiple through holes are provided on the bolt head, and the base has a limiting post located in the through holes. The two ends of the limiting post are respectively connected to the inner wall of the receiving cavity.

8. The foot according to claim 6, characterized in that, A matching concave-convex structure is provided between the bolt head and the receiving cavity. The concave-convex structure consists of a raised rib on one of the bolt head and the inner wall of the receiving cavity, and a groove on the other of the bolt head and the inner wall of the receiving cavity that matches the raised rib. The raised rib is located in the groove.

9. The foot according to claim 6, characterized in that, The base body is provided with a clearance groove for avoiding the nut, and the nut can be partially located in the clearance groove; the clearance groove is connected to the protrusion.

10. A washing device, characterized in that, It has a housing and a foot as described in any one of claims 1 to 9 connected to the lower end of the housing.

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