CA3195394A1 - Protective sleeve for furniture foot - Google Patents

Abstract

A protective sleeve for a furniture foot, including a sleeve body made of a flexible material and a felt pad, wherein the sleeve body is of a cylindrical structure with an opening in one end, which includes a bottom wall and a lateral wall integrally formed with the bottom wall ; the felt pad is attached to an outer surface of the bottom wall and is in a hot-melt connection with the bottom wall; a friction coefficient of the felt pad is smaller than that of the sleeve body. The felt pad is disposed on a bottom surface of the sleeve body. As the friction coefficient of the felt pad is smaller than the friction coefficient of the sleeve body, a friction force on the felt pad is smaller when a chair foot is moved against a floor, so that the protective sleeve is prevented from falling off.

Description

PROTECTIVE SLEEVE FOR FURNITURE FOOT
CROSS REFERENCE TO RELATED APPLICATION
[0001] This application claims priority benefit of Chinese Utility Model Application No.
202220804403.1, filed on Apr. 8, 2022.
TECHNICAL FIELD

[0002] The present application relates to daily necessities, and in particular, to a protective sleeve for a furniture foot.
BACKGROUND

[0003] As a furniture foot such as a chair foot is in contact with a floor, when the chair is moved on the floor, the chair foot rubs against the floor, making the floor worn.

[0004] Some of existing chair feet are provided with plastic or nylon protective sleeves. When a chair is moved, a protective sleeve rubs against the floor. When the chair is moved, a friction force between the protective sleeve and the floor is so large that the protective sleeve falls off easily. In order to reduce the friction force between the protective sleeve and the floor, bottom surfaces of some existing protective sleeves are provided with anti-skid layers, and the anti-skid layers are bonded to the bottom surfaces of the protective sleeves via glue. Because a protective sleeve is usually made of a flexible material, it is inconvenient to support the protective sleeve during application of glue. As a result, it is highly possible that the glue is applied unevenly, so that the bonding strength may vary across the anti-skid layer. Portions of the anti-skid layer with a small glue thickness are prone to peel off during moving of the chair, causing portions of the anti-skid layer to warp and further making the anti-skid layer peel off.
Then, the flexible material of the protective sleeve is in direct contact with the floor, causing the protective sleeve to fall off due to increased friction force.

CPST Doc: 485294.1 Date recue/Date received 2023-04-05 SUMMARY

[0005] A main objective of the present application is to provide a protective sleeve for a furniture foot, and aims to resolve the problem that an existing protective sleeve for a furniture foot is easy to fall off because a friction force against the floor is too great.

[0006] In order to achieve the above objective, the protective sleeve for a furniture foot provided in the present application includes a sleeve body and a felt pad, wherein

[0007] the sleeve body is of a cylindrical structure with an opening in one end, which includes a bottom wall and a lateral wall integrally formed with the bottom wall, and the sleeve body is made of a flexible material; and

[0008] the felt pad is attached to an outer surface of the bottom wall and is in a hot-melt connection with the bottom wall, and a friction coefficient of the felt pad is smaller than a friction coefficient of the sleeve body.

[0009] In some examples, the felt pad is provided with a first hole.

[0010] In some examples, the first hole is provided at the center of the felt pad.

[0011] In some examples, the bottom wall is provided with at least one second hole.

[0012] In some examples, there are a plurality of the second holes disposed on the bottom wall in a scattered manner.

[0013] In some examples, an edge of the felt pad extends to a surface of the lateral wall to form a wrapping edge, and the wrapping edge is in a hot-melt connection with the lateral wall.

[0014] In some examples, a plurality of convex ribs are circumferentially disposed on an inner surface of the lateral wall.

[0015] In some examples, the lateral wall includes a first lateral wall section, a second lateral wall section, and a third lateral wall section that are sequentially connected from bottom to top, the first lateral wall section being connected to the bottom wall; when the lateral wall is in a naturally extended state, the second lateral wall section gradually contracts from bottom to top, and the third lateral wall section gradually expands from bottom to top; and the convex rib is strip-shaped from bottom to top and extends from the second lateral wall section to the third lateral wall section.

CPST Doc: 485294.1 Date recue/Date received 2023-04-05

[0016] In some examples, an inner surface of the bottom wall is provided with at least one convex block.

[0017] In some examples, there are a plurality of the convex blocks disposed on the bottom wall in a scattered manner; and/or, a top surface of the convex block is a convex surface.

[0018] According to the present application, the felt pad is disposed on a bottom surface of the sleeve body. As the friction coefficient of the felt pad is smaller than the friction coefficient of the sleeve body, a friction force on the felt pad is smaller when a chair foot is moved against a floor, so that the protective sleeve for a furniture foot is prevented from falling off. Owing to the hot-melt connection between the felt pad and the bottom wall of the sleeve body, the material of the sleeve body can be partially infiltrated into the felt pad, so that the felt pad is firmly bonded to the bottom wall and is prevented from peeling off.
BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly explain the technical schemes of the embodiments of the present application, the drawings needed in the description of the embodiments are briefly set forth below, and apparently, the accompanying drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be derived on the basis of these drawings without any inventive effort.

[0020] Fig. 1 is a schematic diagram of a bottom of a protective sleeve for a furniture foot according to an embodiment of the present application;

[0021] Fig. 2 is a schematic diagram of a lateral wall of a protective sleeve for a furniture foot according to an embodiment of the present application;

[0022] Fig. 3 is a front view of a protective sleeve for a furniture foot according to an embodiment of the present application; and

[0023] Fig. 4 is a schematic sectional view of an internal structure of a protective sleeve for a furniture foot according to an embodiment of the present application.

[0024] List of reference numerals:

CPST Doc: 485294.1 Date recue/Date received 2023-04-05 Reference Name Reference Name numeral numeral 100 Sleeve body 110 Lateral wall 120 Bottom wall 130 First lateral wall section 131 Second hole 132 Convex block 140 Second lateral wall 150 Third lateral wall section section 160 Convex rib 200 Felt pad 210 Wrapping edge 220 First hole DETAILED DESCRIPTION

[0025] The technical schemes in the embodiments of the present application are clearly and completely described in the following with reference to the drawings in the embodiments of the present application. It is obvious that the described embodiments are only some of the embodiments of the present application and are not all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without inventive effort are within the scope of the present application.

[0026] Embodiments of the present application disclose a protective sleeve for a furniture foot, in particular, used on a chair foot. When used, the protective sleeve sheathes a bottom end of the chair foot. A shape of the protective sleeve may conform to a shape of the chair foot. For example, when the chair foot has a circular cross section, the protective sleeve is provided with a cylindrical cavity; and when the chair foot has a rectangular cross section, the protective sleeve is provided with a cavity having a rectangular cross section.

[0027] Referring to Figs. 1 to 3, in some examples, the protective sleeve includes: a sleeve body 100 and a felt pad 200, wherein the sleeve body 100 is used as a main structure and is used for sheathing the chair feet.

[0028] The sleeve body 100 is of a cylindrical structure, and includes a bottom wall 120 and a lateral wall 110 connected to the bottom wall 120. The bottom wall 120 and the lateral wall CPST Doc: 485294.1 Date recue/Date received 2023-04-05 110 enclose and define an inner cavity. An opening providing access to the inner cavity is formed in one end of the sleeve body 100. The lateral wall 110 has a lower end and an upper end that are disposed axially, wherein the lower end of the lateral wall 110 is connected to the bottom wall 120, and the upper end of the lateral wall 110 forms the opening.
The chair foot extends into the inner cavity through the opening. A bottom surface of the chair foot can be attached to an inner surface of the bottom wall 120. The lateral wall 110 encloses a circumferential periphery of the chair foot. In some examples, the bottom wall 120 is integrally formed with the lateral wall 110. During manufacture of the sleeve body 100, the bottom wall 120 and the lateral wall 110 may be integrally formed via a hot-melt process, to make the bottom wall 120 more fninly connected to the lateral wall 110. In some examples, the sleeve body 100 is made of a flexible material, so that the sleeve body 100 can be mounted to a chair foot conveniently. The hot-melt process is one of existing injection molding processes. In this process, a molten material is poured into a mold through a sprue, and a target shape is formed after the molten material is solidified and shaped in the mold. The sleeve body 100 may be made of a thermo-plastic-rubber material (TPR), a thermoplastic elastomer (TPE), rubber, silicone, or another material.

[0029] In some examples, the felt pad 200 is consistent with a shape of an outer surface of the bottom wall 120, so that the felt pad 200 can completely cover the outer surface of the bottom wall 120. The felt pad 200 is made of an integral piece of a felt material, and has a friction coefficient smaller than the friction coefficient of the sleeve body 100.

[0030] The bottom wall 120 of the sleeve body 100 directly faces the floor.
Therefore, with the felt pad 200 disposed on the outer surface of the bottom wall 120, when the chair is moved, a friction force between the bottom wall 120 of the sleeve body 100 and the floor is relatively decreased, thereby effectively resolving the problem that a protective sleeve falls off due to too great a friction force on a bottom surface of the protective sleeve.

[0031] In some examples, an edge of the felt pad 200 extends to a surface of the lateral wall 110 to form a wrapping edge 210. The wrapping edge 210 has a first end and a second end that are axially disposed on the lateral wall 110. The first end of the wrapping edge 210 is connected to an outer peripheral edge of the felt pad 200. The second end of the wrapping edge 210 extends to the outer surface of the lateral wall 110, thereby forming an annular structure at an CPST Doc: 485294.1 Date recue/Date received 2023-04-05 end, close to the bottom wall 120, of the outer surface of the lateral wall 110. The wrapping edge 210 covers a surface at one end, close to the bottom wall 120, of the lateral wall 110, thereby forming an anti-skid layer on the surface at the end, close to the bottom wall 120, of the lateral wall 110. In the case of a heavy chair, a force on the chair foot is great, causing a bottom surface of the protective sleeve to be tightly pressed on the floor.
When the chair foot is moved in this case, the protective sleeve may deform to some extent. A
friction coefficient of the wrapping edge 210 is smaller than the friction coefficient of the sleeve body 100, so that a friction force between the wrapping edge 210 and the floor is smaller.
Therefore, the protective sleeve can be prevented from falling off the chair foot by the wrapping edge 210 formed on the lateral wall 110.

[0032] In some examples, the felt pad 200 is in a hot-melt connection with the bottom wall 120. For example, the sleeve body 100 is made of a silicone material. The felt pad 200 is placed at a preset position in the mold. When molten silicone is poured into the mold, the molten silicone is integrated with the felt pad 200 to form an integral protective sleeve. Because the felt pad 200 has a rough surface, and the surface has a great quantity of fibers, when the molten silicone is in contact with the felt pad 200, the molten silicone can be fused with the fibers on the surface of the felt pad 200. Because gaps among the fibers of the felt pad 200 are very large, when the molten silicone gets in contact with the surface of the felt pad 200, a part of the molten silicone is infiltrated into the gaps among the fibers of the felt pad 200. In addition, because some of the fibers on the surface of the felt pad 200 extend to the bottom wall 120, strength of connection between the bottom wall 120 and the felt pad 200 becomes greater when the sleeve body 100 is solidified and shaped. The felt pad 200 and the sleeve body 100 are connected and fixed to each other via the hot-melt process. During shaping of the sleeve body 100, connected portions of the sleeve body 100 and the felt pad 200 are infiltrated into each other, so that thicknesses of the connected portions are equal to each other, and the bonding strength is the same across the felt pad 200. This can resolve the problem that the felt pad 200 warps or peels off due to a connection failure at a portion of the felt pad 200. When a force exerted on the bottom surface of the protective sleeve is great, the felt pad 200 is not prone to peel off from the bottom wall 120 because the material of the bottom wall 120 is infiltrated into the felt pad 200 during hot-melt connection between the bottom wall 120 and the felt pad 200. Further, CPST Doc: 485294.1 Date recue/Date received 2023-04-05 because the friction coefficient of the felt pad 200 is smaller than the friction coefficient of the sleeve body 100, when the chair is moved against the floor, the protective sleeve has relatively higher movability and is not prone to fall off.

[0033] In some examples, the wrapping edge 210 is in a hot-melt connection with the lateral wall 110, so that the molten silicone can be infiltrated into gaps between fibers in the wrapping edge 210. This can increase strength of connection between the wrapping edge 210 and the lateral wall 110, and prevent the wrapping edge 210 from peeling off from the lateral wall 110.
The felt pad 200 on the bottom wall 120 is connected and fixed to the lateral wall 110 through the wrapping edge 210 by performing hot-melt connection between the wrapping edge 210 and the lateral wall 110. This can prevent an edge, on the bottom wall 120, of the felt pad 200 from warping or peeling off, thereby making the felt pad 200 more firmly bonded.

[0034] Referring to Fig. 1, in order to prevent the protective sleeve from falling off, in some examples, the lateral wall 110 includes

[0035] a first lateral wall section 130, a second lateral wall section 140, and a third lateral wall section 150 that are sequentially connected from bottom to top. An edge at a lower end of the first lateral wall section 130 is connected to an edge of the bottom wall 120.
An upper end of the first lateral wall section 130 extends upwards axially. The first lateral wall section 130 may take the shape of a hollow cylinder, so that an inner cavity used for accommodating a bottom of the chair foot can be defined by the first lateral wall section 130 and the bottom wall 120.
The second lateral wall section 140 is disposed above the first lateral wall section 130. The third lateral wall section 150 is disposed above the second lateral wall section 140. A joint between the second lateral wall section 140 and the third lateral wall section 150 is used for being tightly attached to a lateral wall 110 of the chair foot. When the sleeve body 100 is in a naturally extended state, the second lateral wall section 140 is of a cylindrical structure that gradually contracts from bottom to top, and the third lateral wall section 150 is of a cylindrical structure that gradually expands from bottom to top. The third lateral wall section 150 forms a flared structure at an upper end of the sleeve body 100. The flared structure is used as an opening at the upper end of the sleeve body 100, so that an end of the chair foot can be inserted into the sleeve body 100 conveniently. Being made of the flexible material, the sleeve body 100 has certain deformability. Therefore, the joint between the second lateral wall section 140 CPST Doc: 485294.1 Date recue/Date received 2023-04-05 and the third lateral wall section 150 can be tightly attached to the lateral wall 110 of the chair foot. When a chair foot is sheathed in the sleeve body 100, the joint between the second lateral wall section 140 and the third lateral wall section 150 can be tightly attached to the lateral wall 110 of the chair foot, and can exert certain elastic compression on the chair foot, thereby retaining the sleeve body 100, preventing the sleeve body 100 from falling off, and increasing stability of the sleeve body 100. The bottom wall 120, the first lateral wall section 130, the second lateral wall section 140, and the third lateral wall section 150 are integrally formed. In some examples, during forming of the wrapping edge 210, the wrapping edge 210 extends from the bottom wall 120 to the first lateral wall section 130, and an axial length of the wrapping edge 210 can be determined according to actual needs. Shapes of cross sections of the first lateral wall section 130, the second lateral wall section 140, and the third lateral wall section 150 may match a shape of a cross section of the chair foot.

[0036] Referring to Figs. 1 and 4, in some examples, the felt pad 200 is provided with a first hole 220. The first hole 220 penetrates through the felt pad 200, so that the sprue for injection molding can be conveniently formed in a position, corresponding to the first hole 220, of the bottom wall 120 of the sleeve body 100. An axial direction of the first hole 220 is parallel to a thickness direction of the felt pad 200. The first hole 220 may be formed in a position near the center of the felt pad 200 or in any other positions of the felt pad 200 as required. During manufacture, the felt pad 200 is placed into the mold, and the molten silicone can enter the mold through the first hole 220, to form a structure of the sleeve body 100 in the mold. Because the first hole 220 is disposed on the felt pad 200, after the molten silicone enters the mold through the first hole 220, duration in which the molten silicone is in contact with the felt pad 200 is prolonged. Therefore, more of the molten silicone can be distributed on and cover a surface, facing the bottom wall 120, of the felt pad 200. Duration required by a thermoplastic material for cooling down and solidifying on the surface of the felt pad 200 is different from duration required by the thermoplastic material for cooling down and solidifying on a surface of the mold, the first hole 220 is disposed on the felt pad 200, and the felt pad 200 is closer to an upstream position in the mold than to other portions in the mold, so that when the molten silicone enters the mold, the duration in which the molten silicone in the mold is in contact with the felt pad 200 becomes relatively longer. This enables more of the thermoplastic material CPST Doc: 485294.1 Date recue/Date received 2023-04-05 to enter the gaps among the fibers of the felt pad 200, thereby making the bottom wall 120 more fiimly connected to the felt pad 200.

[0037] In some examples, the first hole 220 is provided at the center of the felt pad 200, so that the first hole 220 corresponds to a central position of the bottom wall 120. Therefore, when the molten silicone enters the mold through the first hole 220, the molten silicone can be dispensed in the mold more uniformly, and be distributed on the surface, facing the bottom wall 120, of the felt pad 200 uniformly. This can effectively improve uniformity of material distribution, and resolve the problem that a portion of the felt pad 200 warps or peels off due to lack of the molten silicone at the portion, thereby making the felt pad 200 more stably and firmly bonded.

[0038] Referring to Fig. 4, in order to increase strength of connection between the felt pad 200 and the bottom wall 120, in some examples, the bottom wall 120 is provided with at least one second hole 131, and the second hole 131 communicates with at least the outer surface of the bottom wall 120. In some examples, the second hole 131 is a through-hole penetrating through the bottom wall 120. After the felt pad 200 is placed into the mold during hot-melt processing, a columnar structure or a thimble structure may be disposed on the mold, to fix the felt pad 200 by abutting the columnar structure or the thimble structure in the mold against the felt pad 200.
After the mold is opened and a core is extracted, the second hole 131 is formed in a portion where the columnar structure is disposed.

[0039] During shaping of the sleeve body 100, more of fibers at a portion, corresponding to the second hole 131, of the felt pad 200 can be mutually infiltrated into the molten silicone, thereby increasing strength of connection between the sleeve body 100 and the felt pad 200. In some examples, there are a plurality of the second hole 131 disposed on the bottom wall 120 in a scattered manner, to increase the strength of the connection between the felt pad 200 and the bottom wall 120 at a plurality of positions. Owing to the second holes 131 disposed in a scattered manner, uniformity of the molten silicone can be improved.
Therefore, the molten silicone is distributed in the mold more uniformly. With the second holes 131 distributed in a scattered manner, the molten silicone around the second holes 131 can better dissipate heat to the felt pad 200 during shaping of the molten silicone, thereby making the structure of the sleeve body 100 more stable after shaping. In addition, the molten silicone can be better CPST Doc: 485294.1 Date recue/Date received 2023-04-05 infiltrated into the felt pad 200 during a heat dissipation process. In some examples, the second hole 131 is a blind hole formed in the bottom wall 120 and extends from the outer surface of the bottom wall 120 in a direction away from the felt pad 200. In some examples, the second holes 131 are distributed annularly with an axis of the bottom wall 120 as a center, so that the second holes 131 are distributed at equal intervals. This further improves uniformity of the material of the bottom wall 120 of the sleeve body 100 and making the bottom wall 120 more firmly connected to the sleeve body 100 and the felt pad 200. In some examples, the second holes 131 are spaced apart from the first hole 220. The first hole 220 is disposed at the center of the felt pad 200. The second holes 131 are annularly disposed around the first hole 220.
Fibers at portions, corresponding to the first hole 220 and the second hole 131, of the felt pad 200 can extend into the material of the bottom wall 120, to form connection-reinforcing positions which take the axis of the bottom wall 120 as a center. Therefore, the strength of the connection between the felt pad 200 and the bottom wall 120 is increased.

[0040] Referring to Fig. 4, in some examples, an inner wall of the sleeve body 100 is provided with a retaining structure. With the retaining structure disposed on the inner wall of the sleeve body 100, a friction force between a surface of the inner wall of the sleeve body 100 and the chair foot can be increased. Therefore, the chair foot is prevented from moving relative to the inner wall of the sleeve body 100.

[0041] In some examples, the inner surface of the bottom wall 120 is provided with a convex block 132. The convex block 132 is used as a retaining structure on the bottom wall 120. When the bottom surface of the chair foot is in contact with the bottom wall 120, the convex block 132 can prevent the bottom surface of the chair foot from slipping relative to the bottom wall 120. When the chair foot is of a hollow structure, the convex block 132 can be retained inside the surface of the chair foot, to prevent displacement of the chair foot. When the chair foot is of a solid structure, the convex block 132 may be abutted on a side surface of the bottom of the chair foot. In some examples, there are a plurality of the convex blocks 132 disposed on the bottom wall 120 in a scattered manner. When the chair foot is of a hollow structure, the plurality of convex blocks 132 may be embedded in the chair foot or distributed on an inner side and an outer side of the chair foot, thereby retaining the chair foot. When the chair foot is of a solid structure, the plurality of convex blocks 132 may be all abutted against the bottom surface of CPST Doc: 485294.1 Date recue/Date received 2023-04-05 the chair foot. In some examples, the convex block 132 may be a hemispherical structure protruding from a surface of the bottom wall 120, and the convex block 132 has an arc-shaped outer surface. Alternatively, the convex block 132 may be of another shape, such as a conical shape or a columnar shape.

[0042] In some examples, the inner surface of the lateral wall 110 is provided with at least one convex rib 160. The at least one convex rib 160 is used as a retaining structure on the lateral wall 110, and is configured to press against the lateral wall 110 of the chair foot and prevent the sleeve body 100 from rotating relative to the chair foot. The convex rib 160 may be a strip-shaped structure disposed on the lateral wall 110. There may be a plurality of convex ribs 160 disposed at intervals on the lateral wall 110 . Distances between adjacent convex ribs 160 may be the same or different. Heights and/or lengths of adjacent convex ribs 160 may be the same or different.

[0043] In some examples, when the lateral wall 110 includes the first lateral wall section 130, the second lateral wall section 140, and the third lateral wall section 150 that are sequentially connected, the convex rib 160 may be disposed at the joint between the second lateral wall section 140 and the third lateral wall section 150. The convex rib 160 may extend from the second lateral wall section 140 to the third lateral wall section 150. Because the second lateral wall section 140 gradually contracts from bottom to top, the second lateral wall section 140 and the third lateral wall section 150 are tightly attached to an outer surface of the chair foot when the chair foot is sheathed in the sleeve body 100. Therefore, the convex rib 160 can increase friction forces between the second lateral wall section 140 and the outer surface of the chair foot and between the third lateral wall section 150 and the outer surface of the chair foot, thereby preventing the sleeve body 100 from rotating relative to the chair foot and preventing the sleeve body 100 from falling off.

[0044] The protective sleeve described in the above examples of the present application can be used on a chair. In some examples, the chair is provided with a chair foot.
The sleeve body 100 sheathes the chair foot. The chair foot is inserted into the sleeve body 100 through an opening of the sleeve body 100. The chair foot is provided with the protective sleeve, and the sleeve body 100 is in a hot-melt connection with the felt pad 200, so that the felt pad 200 and the bottom wall of the sleeve body 100 are mutually infiltrated, thereby preventing the felt pad CPST Doc: 485294.1 Date recue/Date received 2023-04-05 200 from falling off. Owing to the smaller friction coefficient of the felt pad 200, when the chair is moved, the friction force between the felt pad 200 and the floor is smaller, thereby resolving the problem that a protective sleeve falls off due to too large a friction force.

[0045] Finally, it should be noted that the above embodiments are only used to illustrate the technical schemes of the present application and are not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art will understand that modifications can be made to the technical schemes described in the aforementioned embodiments, or equivalent replacements can be made to some of the technical features in the embodiments;
and these modifications or replacements do not make the essence of the corresponding technical schemes deviate from the principle and scope of the technical schemes of the embodiments of the present application.

CPST Doc: 485294.1 Date recue/Date received 2023-04-05

Claims (16)

1. A protective sleeve for a furniture foot, comprising a sleeve body and a felt pad, wherein the sleeve body is of a cylindrical structure with an opening in one end, which comprises a bottom wall and a lateral wall integrally formed with the bottom wall, and the sleeve body is made of a flexible material; and the felt pad is attached to an outer surface of the bottom wall and is in a hot-melt connection with the bottom wall, and a friction coefficient of the felt pad is smaller than a friction coefficient of the sleeve body.

2. The protective sleeve for a furniture foot of claim 1, wherein the felt pad is provided with a first hole.

3. The protective sleeve for a furniture foot of claim 2, wherein the first hole is provided at the center of the felt pad.

4. The protective sleeve for a furniture foot of claim 1, wherein the bottom wall is provided with at least one second hole.

5. The protective sleeve for a furniture foot of claim 4, wherein the at least one second hole comprises a plurality of second holes disposed on the bottom wall.

6. The protective sleeve for a furniture foot of claim 1, wherein an edge of the felt pad extends to a surface of the lateral wall to form a wrapping edge, and the wrapping edge is in a hot-melt connection with the lateral wall.

7. The protective sleeve for a furniture foot of claim 2, wherein an edge of the felt pad extends to a surface of the lateral wall to form a wrapping edge, and the wrapping edge is in a hot-melt connection with the lateral wall.

8. The protective sleeve for a furniture foot of claim 3, wherein an edge of the felt pad extends to a surface of the lateral wall to form a wrapping edge, and the wrapping edge is in a hot-melt connection with the lateral wall.

9. The protective sleeve for a furniture foot of claim 4, wherein an edge of the felt pad extends to a surface of the lateral wall to form a wrapping edge, and the wrapping edge is in a hot-melt connection with the lateral wall.

10. The protective sleeve for a furniture foot of claim 5, wherein an edge of the felt pad extends to a surface of the lateral wall to form a wrapping edge, and the wrapping edge is in a hot-melt connection with the lateral wall.

11. The protective sleeve for a furniture foot of claim 1, wherein a plurality of convex ribs are circumferentially disposed on an inner surface of the lateral wall.

12. The protective sleeve for a furniture foot of claim 11, wherein the lateral wall comprises a first lateral wall section, a second lateral wall section, and a third lateral wall section that are sequentially connected from bottom to top, the first lateral wall section being connected to the bottom wall; when the lateral wall is in a naturally extended state, the second lateral wall section gradually contracts from bottom to top, and the third lateral wall section gradually expands from bottom to top; and each of the plurality of convex ribs is strip-shaped from bottom to top and extends from the second lateral wall section to the third lateral wall section.

13. The protective sleeve for a furniture foot of claim 1, wherein an inner surface of the bottom wall is provided with at least one convex block.

14. The protective sleeve for a furniture foot of claim 11, wherein an inner surface of the bottom wall is provided with at least one convex block.

15. The protective sleeve for a furniture foot of claim 12, wherein an inner surface of the bottom wall is provided with at least one convex block.

16. The protective sleeve for a furniture foot of claim 13, wherein the at least one convex block comprises a plurality of convex blocks disposed on the bottom wall in a scattered manner;
and a top surface of each convex block is a convex surface.