Antiskid rubber band

Abstract

The utility model discloses an anti-skidding rubber band which solves the problems that an existing product is smooth in outer surface and prone to disengagement when meeting water and sweat. The rubber band comprises an inner-layer rib film and an outer-layer rib film, the inner-layer rib film is composed of main ribs and second ribs which are distributed on the outer side at equal intervals, a concave-convex foundation friction structure is formed, and the inner-layer rib film can be embedded into gaps in the surface of an object to enhance friction force; the first ribs of the outer-layer fascia are wound between the second ribs and connected into a wavy three-dimensional friction layer through communicating strips, and hemispherical anti-skid points are densely arranged on the outer sides of the communicating strips. In a dry state, the antiskid points improve the surface roughness and increase the friction coefficient; in a wet state, the hemispherical curved surface extrudes and discharges liquid to form local micro-vacuum adsorption. According to the design, the slipping force of the rubber band in a dry and wet environment is improved by 2-3 times compared with that of a traditional product, the rubber band is suitable for binding hair and wet objects, the structure is simple, and the anti-slip performance is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of rubber band technology, specifically to an anti-slip rubber band. Background Technology

[0002] A rubber band is a ring-shaped elastic object made of rubber, possessing excellent elasticity and flexibility. It is typically round and comes in various colors, with black, red, and yellow being common choices.

[0003] Rubber bands are primarily made of rubber, processed through vulcanization and other techniques. Their elasticity stems from the stretching and resilience of the rubber molecular chains.

[0004] Rubber bands have a wide range of uses in daily life. They can be used to tie items, such as hair, documents, and packages; in handicrafts, they are important auxiliary materials that help fix objects or create flexible structures; in laboratories, rubber bands are sometimes used to secure experimental equipment.

[0005] Currently, most rubber bands on the market are made from natural or synthetic rubber, manufactured through processes such as extrusion and vulcanization into a single ring structure, with a generally smooth outer surface. While this smooth design facilitates production, processing, and storage, it presents significant drawbacks in practical use. For example, when using rubber bands to tie hair, the friction between the smooth surface and hair is greatly reduced by sweat or water, making them prone to slipping. When binding damp items or objects with water stains, the rubber bands also struggle to maintain stability, leading to the items becoming loose. Furthermore, in industrial production, using smooth rubber bands to bind moist products often results in product displacement due to insecure securing, affecting production efficiency and packaging quality. Therefore, there is an urgent need to improve the structure of existing rubber bands to address the problem of them easily detaching when exposed to water and sweat. Utility Model Content

[0006] The purpose of this invention is to provide an anti-slip rubber band to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, this utility model provides the following technical solution: an anti-slip rubber band, comprising an inner fascia layer, wherein an outer fascia layer is installed on the outer side of the inner fascia layer;

[0008] The inner fascia includes a main rib, and a second rib is integrally formed on the outer side of the main rib;

[0009] The outer fascia includes a first rib, which wraps around the outside of the main rib. A connecting strip is integrally formed in the middle of the first rib, and anti-slip dots are integrally formed on the outside of the connecting strip.

[0010] Preferably, multiple second ribs are evenly distributed on the outer side of the main rib, and the second ribs are distributed on the circular surface of the main rib.

[0011] Preferably, the first reinforcing bar is wrapped between the second reinforcing bars of the main reinforcing bar, and the diameter of the first reinforcing bar is larger than that of the second reinforcing bar.

[0012] Preferably, a connecting strip is integrally formed between the first reinforcing bars wrapped around the outer surface of the main reinforcing bar, and the connecting strip is flat.

[0013] Preferably, the outer wall of the connecting strip is densely provided with anti-slip points at equal intervals, and the anti-slip points are hemispherical.

[0014] Compared with the prior art, this utility model provides an anti-slip rubber band with the following beneficial effects:

[0015] 1. This anti-slip rubber band features an inner rib structure: a main rib at the core, with multiple secondary ribs evenly distributed on the outer side, forming a basic friction structure with alternating concave and convex surfaces. The secondary ribs are evenly distributed along the circular surface of the main rib, increasing the contact friction between the inner layer and the object being bound. Even in wet environments, the concave and convex structure can embed into tiny gaps in the object's surface, reducing slippage.

[0016] 2. This anti-slip rubber band features an outer rib layer: a first rib wrapped around an inner second rib, with a diameter larger than the second rib, forming an interlaced, three-dimensional friction layer. The first ribs are connected by connecting strips, forming a flat support structure that gives the outer layer a wavy, undulating appearance, further enhancing the mechanical engagement with the contact surface. Densely arranged hemispherical anti-slip dots on the outer side of the connecting strips increase the contact area. Combined with the elastic deformation of the rubber itself, these dots can squeeze out liquid when exposed to water or sweat, creating a localized vacuum adsorption effect and significantly improving wet friction. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the middle cross section of the overall structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the inner fascia.

[0021] Figure 4 This is a schematic diagram of the lateral fascia.

[0022] In the diagram: 1. Outer fascia; 11. First rib; 12. Connecting strip; 13. Anti-slip point; 2. Inner fascia; 21. Main rib; 22. Second rib. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] 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.

[0025] This utility model provides the following technical solution:

[0026] Example 1

[0027] Please see Figure 1-4 An anti-slip rubber band includes an inner fascia 2, and an outer fascia 1 is installed on the outside of the inner fascia 2.

[0028] The inner fascia 2 includes a main rib 21, and a second rib 22 is integrally formed on the outer side of the main rib 21;

[0029] The outer fascia 1 includes a first rib 11, which wraps around the outside of the main rib 21. A connecting strip 12 is integrally formed in the middle of the first rib 11, and anti-slip points 13 are integrally formed on the outside of the connecting strip 12.

[0030] The inner fascia 2 is designed with the main rib 21 as the core and multiple second ribs 22 evenly distributed on the outer side, forming a basic friction structure with alternating concave and convex surfaces. The second ribs 22 are evenly distributed along the circular surface of the main rib 21, increasing the contact friction between the inner layer and the bound object. Even in humid environments, the concave and convex structure can embed into tiny gaps on the object's surface, reducing slippage.

[0031] The outer fascia 1 consists of a first rib 11 wrapped around the inner second rib 22, with a diameter larger than the second rib 22, forming an interlaced, three-dimensional friction layer. The first ribs 11 are connected by connecting strips 12, forming a flat support structure that gives the outer layer a wavy, undulating appearance, further enhancing the mechanical engagement with the contact surface. Densely arranged hemispherical anti-slip points 13 on the outer side of the connecting strips 12 increase the contact area. Combined with the elastic deformation of the rubber itself, the anti-slip points 13 can squeeze out liquid when exposed to water or sweat, creating a localized vacuum adsorption effect and significantly improving wet friction.

[0032] Multiple second reinforcing bars 22 are evenly distributed on the outer side of the main reinforcing bar 21, and the second reinforcing bars 22 are distributed on the circular surface of the main reinforcing bar 21.

[0033] Example 2

[0034] Please see Figure 1-4 Furthermore, based on Embodiment 1, the first reinforcing bar 11 is wrapped between the second reinforcing bar 22 of the main reinforcing bar 21, and the diameter of the first reinforcing bar 11 is larger than that of the second reinforcing bar 22.

[0035] A connecting strip 12 is integrally formed between the first ribs 11 wrapped around the outer surface of the main rib 21. The connecting strip 12 is in a flat shape.

[0036] The outer wall of the connecting strip 12 is densely provided with anti-slip points 13 at equal intervals, and the anti-slip points 13 are hemispherical.

[0037] In actual operation, when this device is used, the inner fascia 2 consists of a main rib 21 as the core, with multiple second ribs 22 evenly distributed on the outer side, forming a basic friction structure with alternating concave and convex surfaces. The second ribs 22 are evenly distributed along the circular surface of the main rib 21, increasing the contact friction between the inner layer and the object being bound. Even in humid environments, the concave and convex structure can embed into tiny gaps on the object's surface, reducing slippage.

[0038] Outer fascia 1: The first rib 11 is wrapped between the inner second rib 22, and its diameter is larger than that of the second rib 22, forming an interlaced three-dimensional friction layer. The first rib 11 is connected by the connecting strip 12 to form a flat support structure, making the outer layer have a wavy undulation, further enhancing the mechanical engagement with the contact surface. Hemispherical anti-slip points 13 are densely arranged on the outer side of the connecting strip 12. Its curved structure can increase the contact area. Combined with the elastic deformation of the rubber itself, when it comes into contact with water or sweat, the anti-slip points 13 can squeeze out the liquid, forming a local vacuum adsorption effect, which significantly improves wet friction.

[0039] 1. Multi-layered friction structure synergistically enhances anti-slip performance.

[0040] This invention forms a dual anti-slip mechanism through the basic concave-convex structure of the inner main rib 21 and the second rib 22, and the three-dimensional friction array of the outer first rib 11 and the anti-slip point 13.

[0041] The inner second rib 22 is evenly distributed on the surface of the main rib 21, forming annular protrusions (spacing 0.5-1.2mm). When the rubber band binds an object, the protrusions are embedded in the micro-gaps of the surface of hair, paper, etc., producing a mechanical interlocking effect. Even if the surface is wet, the liquid remaining in the gaps will be adsorbed into the gaps of the protrusions due to capillary action, increasing the retention resistance.

[0042] The outer first rib 11 is wrapped between the inner protrusions. Its large-diameter circular cross section (φ0.8-1.5mm) forms an interlaced wave-shaped contact surface with the inner protrusions. When the rubber band is stretched by tension, the outer rib can adapt to the surface of the object with deformation. The flat design of the connecting strip 12 (thickness 0.3-0.6mm) can suppress excessive deformation of the rib and maintain the stability of the friction structure.

[0043] 2. Wet adsorption mechanism of hemispherical anti-slip point 13

[0044] The hemispherical anti-slip dots 13 (0.2-0.5mm in diameter, 0.8-1.5mm apart) on the outer side of the connecting strip 12 enhance anti-slip capability through the following principle:

[0045] Dry friction enhancement: The dense hemispherical array increases the surface roughness (Ra value) of the rubber band from 0.2μm on a traditional smooth surface to 1.5-2.0μm. According to Amunden's friction law, the contact surface roughness transition zone can increase the static friction coefficient from 0.3 (smooth surface) to 0.6-0.8.

[0046] Wet-state drainage and adsorption: When the anti-slip point 13 comes into contact with water or sweat, the hemispherical surface can quickly squeeze the liquid outwards, creating a local micro-vacuum area (negative pressure of about 5-10 kPa) between the anti-slip point 13 and the object surface. At the same time, the elastic deformation of the rubber fills the tiny pits, producing an adsorption effect similar to an octopus suction cup. Experimental data shows that in a wet environment, the slippage force (the minimum pulling force required for the rubber band to slide) of this invention is 2-3 times higher than that of traditional products, effectively solving the industry problem of smooth rubber bands easily falling off when wet.

[0047] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

Claims

1. A non-slip rubber band, comprising an inner fascia layer (2), characterized in that: An outer fascia (1) is installed on the outside of the inner fascia (2); The inner fascia (2) includes a main rib (21), and a second rib (22) is integrally formed on the outer side of the main rib (21). The outer fascia (1) includes a first rib (11), which is wrapped around the outside of the main rib (21). A connecting strip (12) is integrally formed in the middle of the first rib (11), and anti-slip points (13) are integrally formed on the outside of the connecting strip (12).

2. The anti-slip rubber band according to claim 1, characterized in that: Multiple second reinforcing bars (22) are evenly distributed on the outer side of the main reinforcing bar (21), and the second reinforcing bars (22) are distributed on the circular surface of the main reinforcing bar (21).

3. The anti-slip rubber band according to claim 1, characterized in that: The first reinforcing bar (11) is wrapped around the second reinforcing bar (22) of the main reinforcing bar (21), and the diameter of the first reinforcing bar (11) is larger than that of the second reinforcing bar (22).

4. The anti-slip rubber band according to claim 1, characterized in that: A connecting strip (12) is integrally formed between the first reinforcing bars (11) wrapped around the outer surface of the main reinforcing bar (21), and the connecting strip (12) is flat.

5. The anti-slip rubber band according to claim 1, characterized in that: The outer wall of the connecting strip (12) is densely provided with anti-slip points (13) at equal intervals, and the anti-slip points (13) are hemispherical.

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