CN221794309U - Puncture-proof self-repairing vacuum tyre - Google Patents

Abstract

The utility model discloses a puncture-proof self-repairing vacuum tire. The puncture-proof self-repairing vacuum tire includes a tire body, a self-repairing coating composed of organic polymer nanomaterials or inorganic nanomaterials, and is evenly coated on the inner wall of the tire body. When the tire body is punctured by a foreign object, the nanomaterial of the self-repairing coating can instantly repair the damaged part; the Kevlar puncture-proof layer in the tire body can prevent foreign objects from puncturing and reduce the probability of the tire body being punctured; the lower end of the inner airtight layer of the vacuum airtight layer is also provided with an open-shaped rotating end, and the outer end of the rotating end extends upward to form an outer airtight layer, the inner airtight layer is located in the puncture-proof main layer and covers a layer section of the tire body, the opening of the rotating end surrounds the steel wire in the tire bead part, and the outer airtight layer is located outside the puncture-proof main layer and covers the layer section of the tire side part, thereby forming a double airtight puncture-proof self-repairing vacuum tire. The utility model has the effects of simple structure, convenient use and maintenance, and high safety performance.

Description

Puncture-proof self-repairing tubeless tire

Technical Field

The utility model relates to the field of two-wheeled power-assisted vehicles, in particular to a puncture-proof self-repairing vacuum tire.

Background Art

At present, two-wheeled vehicles are widely used in life, especially electric power-assisted vehicles. At present, the tires of two-wheeled vehicles usually use a combination of outer tube and inner tube. The outer tube is a product without sealing. Then the inner tube is added. After being inflated, it acts as a medium to retain air, ensuring that the vehicle tire is used and driven under a certain air pressure standard. The defects are: First, the production and manufacturing process of existing traditional products is cumbersome and complicated: first, the inner tube has an air nozzle, an air core, and rubber, which effectively combine the three materials together. Whenever there is a deviation in any process or one material, and when the combination of the three materials is not matched, it will directly affect the performance, quality and use of the inner tube. At the same time, the inner tube and the outer tube have their own independent production and manufacturing standards. After the inner tube is produced, it needs to be matched with the outer tube. Matching. If the two are not matched, or if any product has a problem, it will affect the use and safety of the entire product. Secondly, there are certain hidden dangers and defects in the performance and reliability of the product. It is easy to be damaged during use and requires repeated repairs, resulting in a waste of social resources. The inner tube acts as a medium to retain air. The current thickness of the inner tube is about 1.2MM. If it encounters nails, glass or other sharp objects, it is easy to puncture or damage the inner tube, causing air leakage or lack of air, and it cannot be used or ridden normally. It requires costs and expenses for repairs, which causes troubles to the user. At the same time, the outer tire has no sealing protection. When driving at a faster speed, once the inner tube is punctured or bursts, it will directly affect the safety of the user and pose a strong safety hazard.

Utility Model Content

In order to solve one or more of the above problems, the utility model provides a puncture-proof self-repairing vacuum tire.

According to one aspect of the utility model, the puncture-proof self-repairing vacuum tire comprises a tire body, the two ends of the tire crown portion of the tire body are symmetrically connected to the tire side portions, the lower end of the tire side portions is integrally connected to the tire bead portion, and also includes a self-repairing coating, a Kevlar puncture-proof layer and a vacuum airtight layer distributed from the inside to the outside;

The self-repairing coating is composed of organic polymer nanomaterials or inorganic nanomaterials and is evenly coated on the inner wall of the tire body. When the tire body is punctured by foreign objects, the nanomaterials in the self-repairing coating can instantly repair the damage.

The Kevlar puncture-proof layer is integrally formed in the carcass. The puncture-proof main layer of the Kevlar puncture-proof layer has a similar profile to the inner wall of the carcass. The puncture-proof main layer covers the entire middle section of the carcass. The Kevlar puncture-proof layer can prevent foreign objects from penetrating and reduce the chance of the carcass being punctured.

The vacuum airtight layer is integrally formed in the tire body, and the vacuum airtight layer includes an inner airtight layer similar to the puncture-proof main layer. The lower end of the inner airtight layer is also provided with an open rotating end, and the outer end of the rotating end extends upward to form an outer airtight layer. The inner airtight layer is located inside the puncture-proof main layer and covers a layer cross-section of the tire body. The opening of the rotating end wraps around the steel wire in the tire bead portion, and the outer airtight layer is located outside the puncture-proof main layer and covers a layer cross-section of the tire side, thereby forming a double airtight puncture-proof self-repairing vacuum tire.

In some embodiments, the self-repairing coating is a sprayable nano-memory rubber, which is a polymer nano-material uniformly dispersed in a rubber matrix.

In some embodiments, the self-repairing coating is a fluorine-containing sealant with extremely low modulus and extremely strong viscosity. The fluorine-containing sealant is evenly sprayed on the entire inner wall of the tire body to form a layer of self-sealant, thereby forming a high-performance self-repairing tire.

In some embodiments, the nanomaterial is any one of carbon nanotubes, SiO ₂ nanomaterials and TiO ₂ nanomaterials, or a combination thereof.

In some embodiments, the self-healing coating has a thickness of 2.5 mm to 3 mm.

In some embodiments, the upper end of the outer airtight layer further extends upward into both ends of the crown portion.

In some embodiments, the Kevlar stab-proof layer further includes a flip end and an outer stab-proof layer, the flip end is a U-shaped opening structure and the inner end is integrally formed at the lower end of the stab-proof main layer, and the outer end of the flip end is integrally formed and connected to the outer stab-proof layer.

The turning end is located inside the rotating end and is wrapped with a steel wire, and the outer puncture-proof layer extends to the lower end of the tire side portion.

In some embodiments, the vacuum airtight layer is neoprene.

In some embodiments, the Kevlar stab-proof layer is a reinforced fiber layer made of aromatic polyamide organic fibers.

In some embodiments, the carcass is made of natural rubber, and the radial cross-section of the carcass is Ω-shaped.

The surface of the crown portion is provided with pattern grooves, and the thickness of the crown portion is greater than the thickness of the sidewall portion;

An anti-friction layer is provided on the lower side of the tire bead portion.

The puncture-proof self-repairing vacuum tire adopts a vacuum tire structure, which is a structure with a vacuum airtight layer inside the tire body. It is not suitable for tubeless products, thereby eliminating the possibility of air leakage due to the inner tube air nozzle and air core. The tire has a simple structure, is easy to manufacture, simple to assemble, and has a high yield rate. At the same time, a layer of self-repairing coating made of nano materials is added to the inside of the tire body. When the tire is damaged or punctured by external force, the nano self-repairing coating will automatically repair the damaged and punctured areas to avoid tire leakage and punctures that affect use and maintenance. At the same time, the tire has good safety performance and is suitable for various harsh environments to avoid abnormal situations.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic diagram of a radial cross-section of a puncture-proof self-repairing vacuum tire according to an embodiment of the present utility model;

FIG2 is a partial enlarged schematic diagram of the puncture-proof self-repairing vacuum tire shown in FIG1 ;

FIG3 is a schematic diagram of the self-healing coating shown in FIG1 ;

FIG4 is a schematic diagram of the Kevlar stab-proof layer shown in FIG1 ;

FIG5 is a schematic diagram of the vacuum airtight layer shown in FIG1 ;

Carcass 01, crown portion 011, sidewall portion 012, bead portion 013, steel wire 014;

Self-healing coating 1;

Kevlar stab-proof layer 2, stab-proof main layer 20, flip end 21, outer stab-proof layer 22;

Vacuum airtight layer 3, inner airtight layer 30, rotating end 31, outer airtight layer 32.

DETAILED DESCRIPTION

The present invention is further described in detail below in conjunction with the accompanying drawings. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

Figures 1 to 5 schematically show a puncture-proof self-repairing vacuum tire according to an embodiment of the utility model. As shown in the figure, the puncture-proof self-repairing vacuum tire comprises a tire body 01, the two ends of the tire crown portion 011 of the tire body 01 are symmetrically connected to the sidewall portion 012, the lower end of the sidewall portion 012 is integrally connected to the tire bead portion 013, and also includes a self-repairing coating 1, a Kevlar anti-puncture layer 2 and a vacuum airtight layer 3 distributed from the inside to the outside;

The self-repairing coating 1 is composed of organic polymer nanomaterials or inorganic nanomaterials and is evenly coated on the inner wall of the matrix 01. When the matrix 01 is punctured by foreign matter, the nanomaterials of the self-repairing coating 1 can instantly repair the damaged part;

The Kevlar stab-proof layer 2 is integrally formed in the carcass 01. The stab-proof main layer 20 of the Kevlar stab-proof layer 2 is similar in profile to the inner wall of the carcass 01. The stab-proof main layer 20 covers the entire middle layer section of the carcass 01. The Kevlar stab-proof layer 2 can prevent foreign matter from penetrating and reduce the probability of the carcass 01 being punctured.

The vacuum airtight layer 3 is integrally formed in the tire body 01, and the vacuum airtight layer 3 includes an inner airtight layer 30 which is similar to the puncture-proof main layer 20. The lower end of the inner airtight layer 30 is also provided with an open rotating end 31. The outer end of the rotating end 31 extends upward to form an outer airtight layer 32. The inner airtight layer 30 is located inside the puncture-proof main layer 20 and covers a layer cross-section of the tire body 01. The opening of the rotating end 31 surrounds the steel wire 014 in the tire bead portion 013. The outer airtight layer 32 is located outside the puncture-proof main layer 20 and covers a layer cross-section of the tire side portion 012, thereby forming a double airtight puncture-proof self-repairing vacuum tire.

The puncture-proof self-repairing vacuum tire adopts a vacuum outer tire mode and is used alone. At the same time, a self-repairing coating 1 is added inside. When the tire body 01 is punctured or damaged, the self-repairing coating 1 can automatically repair the punctured area through chemical reactions or physical changes. The tire body 01 is integrally formed with a vacuum airtight layer 3 and a Kevlar puncture-proof layer 2, which realizes the independent use of the vacuum outer tire and the function of preventing punctures. Its beneficial effects are: first, the vacuum outer tire is used alone, and the inner tube and outer tire combination mode is cancelled, and the inner tube production process, air nozzle, and air core production process, as well as the combination and matching of the air nozzle, air core and inner tube are reduced, which reduces the production process and possible problems in each production process, as well as the problems that may arise in the combination and matching, that is, reducing the production and manufacturing processes and links, and reducing the possibility of problems; the production process is relatively simple, and the product yield rate is high; second, the tire body The inner vacuum airtight layer 3 and the Kevlar anti-puncture layer 2 are coated with a self-repairing coating 1 of nanomaterials on the surface. When the tire is punctured or damaged by external forces such as nails, broken glass, etc. during use and driving, it can automatically repair itself, reducing maintenance costs and maintenance time, reducing the waste of social resources, improving the travel efficiency and work efficiency of the users, and also improving the safety of the users, avoiding the possibility of air leakage and tire blowout, and increasing the enthusiasm and fun of cyclists, with high safety. Thirdly, the vacuum airtight layer 3 adopts double sealing of the inner airtight layer 30 and the outer airtight layer 32, which effectively improves the vacuum sealing performance of the tire.

Preferably, the self-repairing coating 1 is a sprayable nano-memory rubber, which is a polymer nano-material uniformly dispersed in a rubber matrix. The nano-memory rubber material has a memory shape function. It can change its shape after being stressed or heated, and then restore its memory shape under the condition of returning to its original shape. This feature enables the sprayed nano-memory rubber to quickly fill the gap at the puncture through its own shape change when the tire 100 is damaged by the outside world, forming a temporary repair area. This self-repairing ability can reduce the impact of carcass 01 damage on driving stability and comfort, extend the service life of the tire, and ensure personal safety.

Preferably, the self-repairing coating 1 is a fluorine-containing sealant with extremely low modulus and extremely strong viscosity, and the fluorine-containing sealant is evenly sprayed on the entire inner wall of the tire body 01 to form a layer of self-sealant, thereby forming a high-performance self-repairing tire. The beneficial effect is that the self-repairing coating 1 has both weak fluidity and the excellent properties of solid fluorine rubber, and effectively realizes the self-repairing effect.

Preferably, the nanomaterial is any one of carbon nanotubes, _SiO2 nanomaterials and _TiO2 nanomaterials or a combination thereof. The beneficial effect is that the selected nanomaterial has good self-repairing function.

Preferably, the thickness of the self-repairing coating 1 is 2.5 mm to 3 mm. The beneficial effect is that the selected thickness can have the best self-repairing function.

Preferably, the upper end of the outer airtight layer 32 also extends upward into both ends of the crown portion 011. The beneficial effect is that the outer airtight layer 32 has good vacuum sealing performance.

Preferably, the Kevlar stab-proof layer 2 further includes a flip end 21 and an outer stab-proof layer 22. The flip end 21 is a U-shaped opening structure and the inner end is integrally formed at the lower end of the stab-proof main layer 20. The outer end of the flip end 21 is integrally formed and connected to the outer stab-proof layer 22.

The turning end 21 is located inside the rotating end 31 and is wrapped around the steel wire 014, and the outer puncture-proof layer 22 extends to the lower end of the tire side portion 012. The beneficial effect is that the arrangement can further improve the puncture-proof capability of the tire body 01 and improve the safety performance.

Preferably, the vacuum airtight layer 3 is chloroprene rubber. The beneficial effects are: the vacuum airtight layer 3 of the material has better vacuum sealing performance, oil resistance, heat resistance, flame resistance, sunlight resistance, ozone resistance, acid and alkali resistance, chemical reagent resistance, higher tensile strength, elongation and reversible crystallinity, and good adhesion.

Preferably, the Kevlar puncture-proof layer 2 is a reinforcing fiber layer made of aromatic polyamide organic fibers. The beneficial effect is that this option can further improve the puncture-proof capability of the tire body 01.

Preferably, the carcass 01 is made of natural rubber, and the radial cross-section of the carcass 01 is Ω-shaped.

The surface of the crown portion 011 is provided with pattern grooves, and the thickness of the crown portion 011 is greater than the thickness of the sidewall portion 012;

An anti-scratch layer is provided on the lower side of the bead portion 013 .

The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims (10)

1. Anti-puncture self-repairing vacuum tire, including matrix (01), the crown portion (011) both ends of matrix (01) are integrative symmetrical connection child side portion (012) respectively, child side portion (012) lower extreme an organic whole is connected with tire bead portion (013), its characterized in that: the self-repairing coating (1), the Kevlar stab-resistant layer (2) and the vacuum airtight layer (3) are distributed from inside to outside;

the self-repairing coating (1) is composed of organic polymer nano materials or inorganic nano materials, is uniformly coated on the inner wall of the matrix (01), and can repair damaged parts instantaneously when the matrix (01) is punctured by foreign matters;

the anti-puncture main layer (20) of the Kevlar anti-puncture layer (2) is similar to the inner wall profile of the tire body (01), the anti-puncture main layer (20) is fully distributed on the middle layer section of the tire body (01), and the Kevlar anti-puncture layer (2) can prevent foreign matters from penetrating and reduce the puncture probability of the tire body (01);

The vacuum inner liner (3) is integrally formed in the tire body (01), the vacuum inner liner (3) comprises an inner liner (30) similar to the puncture-proof main layer (20), an opening-shaped rotating end (31) is further arranged at the lower end of the inner liner (30), an outer liner (32) is formed by upward extending the outer end of the rotating end (31), the inner liner (30) is positioned in the puncture-proof main layer (20) and is fully distributed on one layer section of the tire body (01), the opening of the rotating end (31) wraps around a steel wire (014) in the tire bead part (013), and the outer liner (32) is positioned outside the puncture-proof main layer (20) and is fully distributed on the layer section of the tire side part (012), so that a double airtight puncture-proof self-repairing vacuum tire is formed.

2. The puncture-proof self-repairing vacuum tire according to claim 1, wherein the self-repairing coating (1) is sprayable nano memory rubber, and the nano memory rubber is a polymer nano material uniformly distributed and dispersed in a rubber matrix.

3. The puncture-proof self-repairing vacuum tire according to claim 1, wherein the self-repairing coating (1) is a fluorine-containing sealant with extremely low modulus and extremely strong viscosity, and the fluorine-containing sealant is uniformly sprayed on the whole inner wall of the carcass (01) to form a layer of self-sealing glue, so that the high-performance self-repairing tire is formed.

4. The puncture-resistant self-repairing vacuum tire of claim 1, wherein the nanomaterial is any one of carbon nanotubes, siO ₂ nanomaterial, and TiO ₂ nanomaterial, or a combination thereof.

5. A puncture-proof self-repairing vacuum tyre according to claim 1, characterized in that the thickness of the self-repairing coating (1) is 2.5-3 mm.

6. The puncture-resistant self-repairing vacuum tire of claim 1, wherein the upper end of the outer liner (32) further extends upwardly into both ends of the crown portion (011).

7. The puncture-proof self-repairing vacuum tire according to claim 1, wherein the kevlar puncture-proof layer (2) further comprises a turnover end (21) and an outer puncture-proof layer (22), the turnover end (21) is of a U-shaped opening structure, the inner end is integrally formed at the lower end of the puncture-proof main layer (20), the outer end of the turnover end (21) is integrally formed and connected with the outer puncture-proof layer (22),

The turning end (21) is located in the turning end (31) and surrounds the steel wire (014), and the outer stab-resistant layer (22) extends to the lower end of the side wall part (012).

8. The puncture-proof self-repairing vacuum tyre according to claim 1, characterized in that the vacuum inner liner (3) is neoprene.

9. The puncture-proof self-repairing vacuum tire according to claim 1, wherein the kevlar puncture-proof layer (2) is a reinforcing fiber layer made of aromatic polyamide-based organic fibers.

10. The puncture-proof self-repairing vacuum tire according to claim 1, wherein the carcass (01) is made of natural rubber, the diameter section of the carcass (01) is omega-shaped,

The surface of the crown part (011) is provided with a pattern groove, and the thickness of the crown part (011) is larger than that of the side part (012);

An anti-friction layer is arranged on the lower side of the tire bead part (013).