WO2021244592A1

WO2021244592A1 - Novel anti-puncture flat-free tire

Info

Publication number: WO2021244592A1
Application number: PCT/CN2021/098026
Authority: WO
Inventors: 董谦
Original assignee: 董谦
Priority date: 2020-06-03
Filing date: 2021-06-02
Publication date: 2021-12-09

Abstract

An anti-puncture flat-free tire. The inflation inner tube-equipped anti-puncture tire comprises an outer cover (1), an anti-puncture cushion layer (2) tightly attached onto the inner wall of the outer cover, and an inflation inner tube (3) positioned on the inner side of the anti-puncture cushion layer and tightly attached onto the inner wall of the anti-puncture cushion layer. The anti-puncture flat-free tire is simple in structure, light in weight, and low in manufacturing cost; when the tire is punctured by a sharp object from the front or side surface, the anti-puncture structure effectively protects the inflation inner tube, thus achieves the anti-puncture flat-free purpose, and can effectively guarantee normal driving of vehicles.

Description

A new type of puncture-proof and explosion-proof tire

Technical field

The invention belongs to the technical field of tires, and specifically relates to a new type of puncture-proof and explosion-proof tire.

Background technique

At present, the most commonly used pneumatic tires rely on internal compressed air or nitrogen to achieve a certain tire pressure to support the weight of the vehicle and the driver. At the same time, it helps to cushion the bumps on the road to a certain extent, although the new rubber and other composite materials make Pneumatic tires have become more resistant to punctures, but due to the wall thickness of rubber tires (tires), external sharp objects (such as nails, broken glass, sharp stones, etc.) longer than the tire wall thickness can still be physical A punctured tire causes a puncture, an air leak and an insufficient tire pressure, which affects the normal driving of the vehicle, and causes road hazards during the driving of the vehicle or tire scrapping and other problems endangering the personal safety of the driver.

In the field of electric wheelchairs, electric scooters, shared bicycles, ordinary road or mountain bikes, cash transport vehicles, explosion-proof vehicles, anti-terrorism vehicles and other special vehicles, solid tires can be used on a large scale. Solid tires generally have two structures: one is Ordinary rubber tires and solid inner tubes with elastic foam materials inside; the other is an integrated carcass using a special structure design and a single composite material, and there is no distinction between an inner tube and an outer tube.

Although solid tires can prevent punctures by sharp foreign objects, when the vehicle is fast, the speed of the tire's recovery from the shape of the wheel will not catch up with the wheel speed, which will cause a standing wave phenomenon, which will cause severe friction inside the tire, a sharp rise in temperature, and high temperature and deformation. It will cause the internal structural layers of the tire to separate from each other and eventually cause a puncture; at the same time, it will increase the friction with the ground during driving, which will affect the driving speed and increase energy consumption; and the heavier the tire, the heavier the overall vehicle weight. The shock absorption effect of the shock absorption mechanism is worse; in addition, when the solid tires are loaded, the deformation becomes smaller, just like many shared bicycles now use solid tires. When facing uneven roads, you can feel obvious vibrations and bumps, which affects driving Comfort; in addition, solid tires need to add a large amount of rubber or internally filled elastic foam material, which will make the cost of solid tires higher.

Summary of the invention

The purpose of the present invention is to provide a new type of puncture-proof and explosion-proof tire to solve the problems raised in the background art.

In order to achieve the above objectives, the present invention provides the following technical solutions:

A new type of anti-puncture and explosion-proof tire, said tire comprising a tire and an anti-puncture structure closely attached to the inner side of the tire;

The casing is mainly made of rubber material.

Preferably, the anti-puncture structure is an anti-puncture cushion layer made of elastic foam material.

Preferably, the radial cross-sectional outer contour of the anti-puncture cushion layer is crescent-shaped or arc-shaped.

Preferably, the anti-puncture cushion layer has a patterned hollow structure.

Preferably, the pattern hollow structure includes a convex pattern protruding from the outer surface of the anti-puncture cushion layer or a concave pattern concave into the outer surface of the anti-puncture cushion layer.

Preferably, the anti-puncture cushion layer extends to both sides of the inside of the tire casing.

Preferably, the tire further includes a pneumatic inner tube located inside the puncture-resistant cushion layer and in close contact with the puncture-resistant cushion layer.

Preferably, the outer contour shape of the radial cross section of the anti-puncture cushion layer is adapted to the shape between the hub and the tire.

Preferably, the anti-puncture cushion layer has an inflatable channel that can contain air.

Preferably, the anti-puncture structure is an in-tire filler.

Preferably, the inner tyre filler body has a perforation that penetrates the hollow structure of the inner tyre filler axially or radially penetrates the hollow structure of the tyre filler body.

Compared with the prior art, the beneficial effects of the present invention are:

This new type of anti-puncture and explosion-proof tire changes the original tire design, with simple structure, light weight and low cost. When the tire is penetrated by sharp objects from the front or side, the anti-puncture structure can effectively prevent inflation The inner tube or tubeless tyre's airtight layer is destroyed, so as to achieve the purpose of anti-puncture and explosion-proof, which can effectively guarantee the normal driving of the vehicle.

Description of the drawings

Figure 1 is a schematic diagram of the structure of a puncture-proof and explosion-proof tire with a solid puncture-proof cushion;

Figure 2 is a schematic cross-sectional structure diagram of a puncture-proof and explosion-proof tire with a solid puncture-proof cushion;

Figure 3 is a schematic diagram of the structure of a puncture-proof and explosion-proof tire with a patterned hollow-type puncture-proof cushion;

Figure 4 is a schematic cross-sectional structure diagram of a puncture-proof and explosion-proof tire with a patterned hollow-type puncture-proof cushion;

Figure 5 is a schematic structural view of a puncture-proof and explosion-proof tire with a solid puncture-proof cushion layer extending to both sides of the inner tire;

Figure 6 is a schematic cross-sectional structure diagram of a puncture-proof and explosion-proof tire with a solid puncture-proof cushion layer extending to both sides of the inner tire;

Figure 7 is a schematic structural view of a puncture-proof and explosion-proof tire with a patterned hollow puncture-proof cushion layer extending to both sides of the inner tire;

Figure 8 is a schematic cross-sectional structure diagram of a puncture-proof and explosion-proof tire with a patterned hollow puncture-proof cushion layer extending to both sides of the tire;

Figure 9 is a simulation diagram of a puncture-proof and explosion-proof tire with a solid puncture-proof cushion layer being pierced by iron nails;

Figure 10 is a simulation diagram of a puncture-proof and explosion-proof tire with a patterned hollow puncture-proof cushion layer being pierced by iron nails;

Figure 11 is a simulation diagram of a puncture-proof and explosion-proof tire with a solid puncture-proof cushion layer extending to both sides of the inner tire;

Figure 12 is a simulation diagram of a puncture-proof, explosion-proof tire with a patterned hollow puncture-proof cushion layer extending to both sides of the outer tire;

Figure 13 is a schematic structural diagram of a puncture-proof and explosion-proof tire with a solid puncture-proof cushion and no tube;

Figure 14 is a schematic diagram of the structure of a puncture-proof and explosion-proof tire with a patterned hollow type puncture-proof cushion and without a tube;

Figure 15 is a schematic structural view of a puncture-proof and explosion-proof tire with a solid anti-puncture cushion layer extending to both sides of the inner tire and without an inner tube;

Figure 16 is a schematic structural diagram of a puncture-proof and explosion-proof tire with a patterned hollow type puncture-resistant cushion layer extending to both sides of the inner tire and without a tube;

Figure 17 is a simulation diagram of a puncture-proof and explosion-proof tire with a solid puncture-proof cushion and no inner tube being pierced by iron nails;

Figure 18 is a simulation diagram of a puncture-proof and explosion-proof tire with a patterned hollowed-out anti-puncture cushion and a tubeless puncture-proof tire being pierced by iron nails;

Figure 19 is a simulation diagram of a puncture-proof, run-flat tire with a solid puncture-proof cushion layer extending to both sides of the inner tire of the outer tire, and a tubeless puncture-proof tire;

Figure 20 is a simulation diagram of a puncture-proof and explosion-proof tire with a patterned hollow type puncture-resistant cushion layer extending to both sides of the inner tire, and a tubeless puncture-proof tire with iron nails;

Figure 21 is a schematic structural diagram of a puncture-proof cushion with an inflation channel and a tubeless anti-puncture and explosion-proof tire;

Figure 22 is a schematic cross-sectional structure diagram of a puncture-proof cushion with an inflation channel and a tubeless anti-puncture and explosion-proof tire;

Figure 23 is a schematic structural diagram of a puncture-proof and run-flat tire with an axially penetrating hollow structure perforated and without a tube;

Figure 24 is a schematic diagram of a cross-sectional structure of a puncture-proof and explosion-proof tire with an axially penetrating hollow structure perforated and without a tube;

Figure 25 is a schematic structural diagram of a puncture-proof, run-flat tire with a radially penetrating hollow structure perforated and without a tube;

Fig. 26 is a schematic diagram of a cross-sectional structure of a puncture-proof, run-flat tire with radially penetrating hollow structure perforations and without a tube.

detailed description

The present invention will be further described below in conjunction with embodiments.

The following examples are used to illustrate the present invention, but cannot be used to limit the protection scope of the present invention. The conditions in the embodiments can be further adjusted according to specific application conditions. Simple improvements to the method of the present invention based on the concept of the present invention are all within the scope of the present invention.

Example 1

As shown in Figures 1-12, the present invention provides a new type of puncture-proof and explosion-proof tire. The tire includes a tire 1, an anti-puncture cushion layer 2 tightly attached to the inner side of the tire, and an inner side of the anti-puncture cushion layer 2. An inflatable inner tube 3 closely attached to the anti-puncture cushion layer 2.

As shown in Figures 1, 2 and 9, the tire casing 1 is mainly made of rubber material. The anti-puncture cushion layer 2 is made of elastic foam material. Viewed from the radial cross section of the tire, the outer contour of the anti-puncture cushion layer 2 is in close contact with the inner contour of the tire 1. The radial cross section of the anti-puncture cushion layer 2 is crescent-shaped or arc-shaped. As shown in Figure 9, after the tire is pierced by a sharp object (such as an iron nail), the iron nail is blocked by the anti-puncture cushion layer 2, and the inflatable inner tube 3 is not punctured, and no air leakage or puncture occurs, thereby ensuring the vehicle Normal driving.

Example 2

As shown in FIG. 3, FIG. 4 and FIG. 10, the difference from Embodiment 1 is that the anti-puncture cushion layer 2 has a patterned hollow structure. The pattern hollow structure includes a convex pattern that protrudes from the outer surface of the puncture-resistant cushion layer 2 or a concave pattern that is concave into the outer surface of the puncture-resistant cushion layer. The use of a patterned hollow structure can ensure the functionality of the puncture-resistant cushion layer 2 while further reducing the self-weight of the puncture-resistant cushion layer 2, thereby further reducing energy consumption and manufacturing costs. The pattern hollow structure does not affect the protection of the anti-puncture cushion, but the specific structure of the pattern hollow needs to be designed according to the tire tread pattern.

Example 3

As shown in FIGS. 5, 6 and 11, the difference from Embodiment 1 is that the anti-puncture cushion layer 2 extends to both inner sides of the tire casing 1. In addition to providing protection for the front side of the tire, this embodiment adds protection to the sidewall of the tire when sharp objects on the side pierce the tire sidewall.

Example 4

As shown in FIG. 7, FIG. 8, and FIG. 12, this embodiment is a combination of Embodiment 2 and Embodiment 3, and the anti-puncture cushion layer 2 has a patterned hollow structure. The pattern hollow structure includes a convex pattern that protrudes from the outer surface of the puncture-resistant cushion layer 2 or a concave pattern that is concave into the outer surface of the puncture-resistant cushion layer 2. The anti-puncture cushion layer 2 extends to the inner sides of the tire 1. The pattern hollow structure can protect the front side of the tire, and the side extensions can protect the sidewall of the tire. The weight of the anti-puncture cushion layer 2 is lighter than that of the third embodiment.

Example 5

As shown in Figures 13-16, compared with any one of Embodiments 1-4, the puncture-proof and run-flat tire in this embodiment includes a tire casing 1 and an anti-puncture cushion layer 2 closely attached to the inner side of the tire casing. The puncture-proof, run-flat tire is a tubeless (tubeless) tire. It is characterized in that the anti-puncture cushion layer 2 extends to both sides of the inside of the tire 1 and is located between the tire 1 and the airtight layer (approximately U-shaped) that maintains the gas seal inside the tire.

Figure 17-20 is a simulation diagram of a tire pierced by iron nails, showing that when the tire is pierced by a sharp object, the sharp object is blocked by the anti-puncture cushion layer 2, the inner liner will not be damaged, and the tire will not leak air. Or puncture the tire to ensure the normal driving of the vehicle.

Example 6

As shown in Figure 21 and Figure 22, the radial cross-sectional outer contour shape of the anti-puncture cushion layer 2 is adapted to the shape between the hub and the tire, and the radial cross-sectional shape is adapted to the shape between the hub and the tire. The anti-puncture cushion layer 2 has an inflation channel 22 that can contain air. The anti-puncture and anti-explosion tire is a tubeless (tubeless) tire as in Example 5. It is characterized by adopting a specially designed hollow structure. An inflation channel 22 is left in the anti-puncture cushion layer 2 so that it can be inflated to a specified air pressure like a tubeless tire during use. The compressed gas distributes the pressure evenly to the tire surface through the internal air channel to obtain ideal performance. Since there is more comprehensive support between the wheel hub/rim and the tire, even when the tire is punctured and the inner liner is destroyed, this enhanced anti-puncture cushion can still provide sufficient support. Ensure safe driving far enough to reach the repair point for tire repair or replacement, and damage to the hub/rim is also avoided during the whole process.

Example 7

As shown in Figures 23-26, the puncture-proof and explosion-proof tire is a puncture-proof tire in the form of a tubeless (tubeless tyre). The difference from Embodiment 5 and Embodiment 6 is that the puncture-proof structure is a tire-filled body 4, and the inner tire filler 4 has a hollow structure axially penetrating through the tire inner filler body 4 or a perforation 41 radially penetrating the hollow structure of the tire tire inner filler 4. By arranging the in-tire filler 4, the tire casing 1 is effectively supported, and at the same time, the hollow structure perforation 41 is added inside the in-tire filler 4, which can effectively reduce the weight of the in-tire filler 4, thereby reducing the weight of the puncture-proof and explosion-proof tire. In addition, the material consumption of the filler 4 in the tire is reduced, so as to achieve the purpose of reducing the cost.

In summary, the outer contour of the anti-puncture structure closely fits with the inner contour of the tire casing 1. The radial cross section of the anti-puncture structure is approximately crescent-shaped, arc-shaped, and U-shaped (the anti-puncture cushion 2 extends to the inside of the tire 1 On both sides of) and other different shapes of solid or patterned hollows, etc., the structure includes but is not limited to the structural design form provided by the above-mentioned various embodiments. When the tire is pierced by a sharp object from the front or side, the sharp object is blocked by the anti-puncture structure, and the inner liner of the pneumatic inner tube or tubeless tire is protected. The compressed gas inside the tire will not leak, and there will be no tire leakage or leakage. A puncture will not affect the normal driving of the vehicle.

Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it will be understood that various changes, modifications, substitutions, and substitutions can be made to these embodiments without departing from the principle and spirit of the present invention. Variations, the scope of the present invention is defined by the appended claims and their equivalents.

Claims

A new type of anti-puncture and explosion-proof tire, characterized in that: the tire includes a tire and an anti-puncture structure tightly attached to the inner wall of the tire; the tire is mainly made of rubber material.
The new anti-puncture and explosion-proof tire according to claim 1, wherein the anti-puncture structure is an anti-puncture cushion layer made of elastic foam material.
The new puncture-proof and explosion-proof tire according to claim 2, wherein the outer contour of the radial cross-section of the puncture-proof cushion is crescent-shaped or arc-shaped.
The new puncture-proof and explosion-proof tire according to claim 3, wherein the puncture-proof cushion layer is a patterned hollow structure.
The new puncture-proof and explosion-proof tire according to claim 4, wherein the pattern hollow structure includes a convex pattern that protrudes from the outer surface of the puncture-proof cushion or is recessed into the puncture-proof cushion. The concave pattern on the outer surface of the cushion.
The new anti-puncture and explosion-proof tire according to claim 5, wherein the anti-puncture cushion layer extends to both sides of the inside of the tire.
The new anti-puncture and explosion-proof tire according to any one of claims 1-6, characterized in that: the tire further comprises a tire located inside the anti-puncture cushion layer and closely attached to the anti-puncture cushion layer. Inflatable inner tube.
The new puncture-proof and explosion-proof tire according to claim 2, wherein the outer contour shape of the radial cross-section of the puncture-proof cushion layer is adapted to the shape between the hub and the tire.
The new puncture-proof and explosion-proof tire according to claim 8, wherein the puncture-proof cushion layer has an inflatable channel that can contain air.
The new puncture-proof and explosion-proof tire according to claim 1, wherein the puncture-proof structure is an in-tire filler.
The new puncture-proof and explosion-proof tire according to claim 10, characterized in that: the inner tire has a hollow structure axially penetrating the inner tire filler or a hollow radial penetrating the inner tire filler. Perforation of the structure.