Anti-puncturing self-repairing tire

Abstract

The utility model belongs to the technical field of tires, and particularly relates to an anti-pricking self-repairing tire which comprises a tire body and a hub, a plurality of anti-pricking bulges are uniformly arranged on the outer side of the circumference of the tire body, and a reinforced protective layer, a self-repairing layer and a restraint layer are sequentially arranged on the inner side of the tire body from inside to outside; a sealed cavity is formed in the self-repairing layer, and the cavity is filled with a self-repairing body. The self-repairing body can automatically fill and repair the air leakage position of the tire body, meanwhile, the restraint layer is made of slow-curing polyurea materials, has excellent mechanical performance, plays a role in protecting damping materials, serves as a reinforcing layer and is matched with the reinforcing protection layer, and the explosion-proof and noise reduction effects can be achieved; the anti-pricking protrusions can prevent sharp objects from pricking in the mode of being perpendicular to the tire body, and the effects of preventing pricking and preventing the tire from slipping are achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of tires, and particularly relates to a puncture-proof self-repairing tire. Background Art

[0002] Vehicles are running on the road all year round, and the tires almost always keep running, so it is inevitable that they will be punctured by various sharp objects. If the puncture is very serious, it will cause tire air leakage and unbalanced tire pressure, resulting in wear on the contact surface between the tire side and the ground, and ultimately leading to a flat tire. Therefore, we need to effectively prevent air leakage and flat tires during driving, maintain the functions and performance of the tires, and improve driving safety and the service life of the tires.

[0003] To solve the above problems, a puncture-proof self-repairing tire is proposed in this application. Summary of the Utility Model

[0004] To solve the problems raised in the above background art. The utility model provides a puncture-proof self-repairing tire, which has the characteristics of puncture-proof, explosion-proof and self-repairing.

[0005] To achieve the above object, the utility model provides the following technical solution: A puncture-proof self-repairing tire includes a tire body and a wheel hub. A plurality of puncture-proof protrusions are evenly arranged on the circumferential outer side of the tire body. An enhanced protection layer, a self-repairing layer and a constraint layer are sequentially arranged on the inner side of the tire body from inside to outside; a sealed cavity is arranged inside the self-repairing layer, and a self-repairing body is filled inside the cavity.

[0006] Preferably, as a puncture-proof self-repairing tire of the utility model, the puncture-proof protrusions are arranged in an array on the surface of the tire body, and the puncture-proof protrusions are integrally formed with the tire body.

[0007] Preferably, as a puncture-proof self-repairing tire of the utility model, the puncture-proof protrusion is a frustum-shaped structure, and the height of the puncture-proof protrusion is greater than or equal to 5 mm.

[0008] Preferably, as a puncture-proof self-repairing tire of the utility model, the enhanced protection layer is a mesh structure, and the enhanced protection layer is fixedly connected to the inner surface of the tire body by hot pressing.

[0009] Preferably, as a puncture-proof self-repairing tire of the utility model, the self-repairing body is in a molten state, and the self-repairing body has weak magnetism.

[0010] Preferably, as a puncture-proof self-repairing tire of the utility model, polyurea packages corresponding to the cavities one by one are arranged inside the constraint layer, and multiple groups of polyurea packages are isolated from each other.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: The self-repair body in the present utility model can automatically fill and repair the air leakage of the tire body, and at the same time, the constraint layer is made of slow-curing polyurea material, which has excellent mechanical properties, protects the damping material, and forms a reinforcing layer. In addition, by cooperating with the enhanced protection layer, the effects of explosion-proof and noise reduction can be achieved. Description of the Drawings

[0012] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. Together with the embodiments of the present utility model, they are used to explain the present utility model, and do not constitute a limitation to the present utility model. In the drawings:

[0013] Figure 1 is an axonometric view of the present utility model;

[0014] Figure 2 is a cross-sectional view of the present utility model;

[0015] Figure 3 is a schematic structural view of the enhanced protection layer in the present utility model;

[0016] Figure 4 is Figure 2 a partial enlarged view of part A in

[0017] In the figure: 1, tire body; 2, wheel hub; 3, puncture-proof protrusion; 4, enhanced protection layer; 5, self-repair layer; 6, constraint layer; 7, cavity; 8, self-repair body; 9, polyurea package. Detailed Embodiments

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0019] Embodiment 1

[0020] As Figure 1 and Figure 2 shown;

[0021] A puncture-proof self-repairing tire includes a tire body 1 and a wheel hub 2. A plurality of puncture-proof protrusions 3 are evenly arranged on the outer circumference of the tire body 1. An enhanced protection layer 4, a self-repair layer 5, and a constraint layer 6 are sequentially arranged on the inner side of the tire body 1 from inside to outside; a sealed cavity 7 is arranged inside the self-repair layer 5, and a self-repair body 8 is filled inside the cavity 7.

[0022] It should be noted that in this embodiment, the main material of the self-repair body 8 is a viscoelastic damping material. The viscoelastic damping material has very excellent elongation, greater than 700%, low modulus, hardness within 10A, excellent self-repair performance, and excellent damping performance at the same time.

[0023] It should be noted that in this embodiment, the constraint layer 6 is a slow-curing polyurea material, which has excellent mechanical properties, tensile strength greater than 10 mpa, elongation greater than 300%, and hardness greater than 70A.

[0024] In this embodiment: The self-repair body 8 can automatically fill and repair the air leakage of the tire body 1. At the same time, the constraint layer 6 is a slow-curing polyurea material, which has excellent mechanical properties and plays a protective role for the damping material. As a strengthening layer, in addition, by cooperating with the enhanced protection layer 4, it can achieve the effects of explosion-proof and noise reduction.

[0025] In an alternative embodiment, the puncture-proof protrusions 3 are distributed in an array on the surface of the tire body 1, and the puncture-proof protrusions 3 are integrally formed with the tire body 1. The puncture-proof protrusions 3 are frustum-shaped structures, and the height of the puncture-proof protrusions 3 is greater than or equal to 5 mm.

[0026] In this embodiment: On the one hand, the frustum-shaped structure of the puncture-proof protrusions 3 can prevent shorter sharp objects from piercing into the interior of the tire body 1. At the same time, the inclined surface can prevent sharp objects from piercing the tire body 1 vertically, having the effects of puncture-proof and preventing tire skidding.

[0027] As Figure 3 shown;

[0028] In an alternative embodiment, the enhanced protection layer 4 is a mesh structure, and the enhanced protection layer 4 is fixedly connected to the inner surface of the tire body 1 by means of hot pressing.

[0029] In this embodiment: The enhanced protection layer 4 fixedly connected to the inner wall of the tire body 1 by means of hot pressing can effectively reduce the bursting range when the tire body 1 bursts when encountering a long nail or a sharp object, further improving the safety of use of the tire body 1.

[0030] In an alternative embodiment, the self-repair body 8 is in a molten state, and the self-repair body 8 has weak magnetism.

[0031] In this embodiment: The self-repair body 8 is formed by doping a viscoelastic damping material with weak magnetic particles. Most of the sharp objects piercing the tire are made of metal. The self-repair body 8 with weak magnetism can be effectively adsorbed around the sharp object and then form a coagulum, so as to better repair the gap.

[0032] As Figure 4 shown;

[0033] In an alternative embodiment, polyurea packages 9 corresponding one-to-one to cavities 7 are provided inside the constraint layer 6, and multiple groups of polyurea packages 9 are isolated from each other.

[0034] In this embodiment: The polyurea material in the polyurea package 9 is in a molten state, and the polyurea material is coated with a thin film material. After a sharp object pierces the tire and is then pulled out, the self-repair body 8 will cover and form a rough coagulation of the hole formed between the sharp object and the tire body 1. At the same time, the polyurea material in the polyurea package 9 flows out and solidifies outside the self-repair body 8 to form a strengthening layer.

[0035] The working principle and usage process of the present utility model: When a vehicle's tire encounters a sharp object during driving, the sharp object first pierces the tire body 1 and the enhanced protection layer 4, then enters the cavity 7 of the self-repair layer 5, and finally pierces the polyurea package 9 in the constraint layer 6. If the sharp object is not pulled out, the self-repair body 8 will cover the gap formed between the sharp object and the tire body 1, and the self-repair body 8 can form a rough coagulation in about 15 minutes, thereby filling the gap; if the sharp object is pulled out, the self-repair body 8 will cover and form a rough coagulation of the hole formed between the sharp object and the tire body 1. At the same time, the polyurea material in the polyurea package 9 flows out and forms a strengthening layer outside the self-repair body 8.

[0036] Finally, it should be noted that: The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A puncture-proof self-repairing tire, comprising a tire body (1) and a wheel hub (2), characterized in that: A number of puncture-proof protrusions (3) are evenly arranged on the outer circumference of the tire body (1), and an enhanced protective layer (4), a self-repairing layer (5) and a constraint layer (6) are sequentially arranged on the inner side of the tire body (1) from inside to outside; A sealed cavity (7) is arranged inside the self-repairing layer (5), a self-repairing body (8) is filled inside the cavity (7), the self-repairing body (8) is in a molten state, and the self-repairing body (8) has weak magnetism; Polyurea packages (9) corresponding to the cavities (7) one by one are arranged inside the constraint layer (6), and multiple groups of the polyurea packages (9) are isolated from each other.

2. The puncture-proof self-repairing tire according to claim 1, characterized in that: The puncture-proof protrusions (3) are arranged in an array on the surface of the tire body (1), and the puncture-proof protrusions (3) are integrally formed with the tire body (1).

3. The puncture-proof self-repairing tire according to claim 2, characterized in that: The puncture-proof protrusion (3) is in a frustum shape, and the height of the puncture-proof protrusion (3) is greater than or equal to 5 mm.

4. The puncture-proof self-repairing tire according to claim 3, characterized in that: The enhanced protective layer (4) is in a mesh structure, and the enhanced protective layer (4) is fixedly connected to the inner surface of the tire body (1) by hot pressing.

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