Puncture-proof tire

Abstract

The utility model provides a puncture-proof tire which comprises a tire main body, a wheel rim is arranged in an inner lip edge of the tire main body, a wheel groove is distributed on the surface of the tire main body, and a groove bottom reinforcing ring is arranged in the wheel groove; the inner side of the tire main body is sequentially compounded with a stab-resistant braided layer, a braided armored ring, a macromolecular repair layer and an inner lip thickening lining, and a forming ring is welded on the side edge of the braided armored ring; according to the puncture-proof tire disclosed by the utility model, the puncture-proof force is improved through a unique structure. The groove bottom reinforcing ring and the puncture-proof braid layer resist puncture, and the braid armor ring and the forming ring form a metal barrier; the inner lip thickening lining reinforces the inner ring of the tire, limits the displacement of the polymer repairing layer, guarantees the self-repairing function, and provides reliable protection for the tire.

Description

Technical Field

[0001] This utility model belongs to the field of tire technology, and in particular relates to a puncture-proof tire. Background Technology

[0002] It relates to driving safety and stability. Traditional tires face many challenges in daily use, especially in complex road conditions. Sharp objects such as nails, glass shards, and gravel can easily puncture tires, leading to air leaks or even tire blowouts, posing serious safety hazards to vehicle operation.

[0003] While existing puncture-resistant tire technologies have improved tire puncture resistance to some extent, they still have many shortcomings. For example, some puncture-resistant tires achieve puncture resistance simply by increasing rubber thickness. This not only significantly increases tire weight, reducing fuel economy and handling agility, but also provides poor protection against punctures from high-strength, sharp objects. Other puncture-resistant tires use special coatings, but these coatings have poor durability, and their puncture resistance drops sharply after long-term use and wear.

[0004] Therefore, it is essential to invent a puncture-proof tire. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model provides a puncture-resistant tire, including a tire body, a rim, a groove, a groove bottom reinforcing ring, a puncture-resistant braided layer, a braided armor ring, a polymer repair layer, an inner lip thickening liner, and a molding ring. The rim is provided inside the inner lip of the tire body, and a groove is provided on its surface. A groove bottom reinforcing ring is provided inside the groove. The puncture-resistant braided layer, the braided armor ring, the polymer repair layer, and the inner lip thickening liner are sequentially laminated on the inner side of the tire body. A molding ring is welded to the side of the braided armor ring.

[0006] Preferably, the groove bottom reinforcing ring is an outer circular structure woven from high-strength fibers, with a cross-section of "U". The groove bottom reinforcing ring is fixed to the bottom and inner wall of the wheel groove of the tire body by stitching and thermal bonding.

[0007] Preferably, the puncture-resistant braided layer composited on the inner center of the tire body is an inner ring-shaped structure woven from high-strength fibers, with a curved rectangular cross-section, and the braided armor ring and the molded ring are compositely disposed between the puncture-resistant braided layer and the polymer repair layer.

[0008] Preferably, the woven armor ring is a metal ring structure woven from small-diameter metal wires, and its side is welded together with a molded ring with a side-standing "U" shaped cross-section, and the two molded rings are arranged opposite each other.

[0009] Preferably, the inner lip thickening liner is disposed near the inner edge of the tire body of the molding ring, the inner lip thickening liner is composite on the inner side of the inner lip edge of the tire body, the polymer repair layer is located between the two inner lip thickening liners, and the polymer repair layer can be restricted in displacement by the two inner lip thickening liners.

[0010] Compared with the prior art, the present invention has the following beneficial effects:

[0011] This utility model of a puncture-resistant tire significantly enhances its puncture resistance through a unique structural design. The reinforcing ring at the bottom of the groove is made of high-strength fiber and is securely fixed to the bottom and inner wall of the tire body's grooves with a "U"-shaped cross-section. This effectively resists punctures from sharp objects on the road surface from the groove direction, greatly reducing the risk of punctures in the groove area. The puncture-resistant woven layer, as a crucial protective structure on the inner center of the tire body, is also made of high-strength fiber, acting like a sturdy shield to prevent sharp objects from penetrating the tire, further enhancing the tire's overall puncture resistance.

[0012] Furthermore, the woven armor ring of this utility model uses small-diameter metal wires for weaving, and together with the molded ring welded to it, a tough metal protective barrier is formed between the puncture-resistant woven layer and the polymer repair layer. It has a strong resistance to sharp objects and can effectively prevent the tire from being punctured, providing multiple reliable puncture protection for the tire.

[0013] This utility model features an inner lip thickening liner composite on the inner side of the inner lip edge of the tire body. This not only further strengthens the structural strength of the tire's inner ring, but also restricts the displacement of the polymer repair layer, ensuring that the polymer repair layer can accurately and effectively perform its self-repair function when punctured, thus maintaining the tire's normal performance. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the layered structure of this utility model.

[0015] Figure 2 This is a utility model Figure 1 A schematic diagram of the main structure.

[0016] Figure 3 This is a utility model Figure 1 A magnified schematic diagram of the structure at point A.

[0017] In the picture:

[0018] Tire body 1, rim 2, rim groove 3, groove bottom reinforcing ring 4, puncture-resistant braided layer 5, braided armor ring 6, polymer repair layer 7, inner lip thickened liner 8, molded ring 9. Detailed Implementation

[0019] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0020] In the description of the embodiments, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In the description of the utility model, it should be noted that unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in the present utility model based on the specific circumstances.

[0021] As attached Figure 1 To be continued Figure 3 As shown:

[0022] This utility model provides a puncture-resistant tire, comprising a tire body 1, a rim 2, a groove 3, a groove bottom reinforcing ring 4, a puncture-resistant braided layer 5, a braided armor ring 6, a polymer repair layer 7, an inner lip thickening liner 8, and a molding ring 9. The rim 2 is disposed inside the inner lip of the tire body 1, and the groove 3 is provided on its surface. The groove bottom reinforcing ring 4 is disposed inside the groove 3. The puncture-resistant braided layer 5, the braided armor ring 6, the polymer repair layer 7, and the inner lip thickening liner 8 are sequentially laminated on the inner side of the tire body 1. The molding ring 9 is welded to the side of the braided armor ring 6.

[0023] Furthermore, the groove bottom reinforcing ring 4 is woven from high-strength aramid fiber. Aramid fiber has high strength, high modulus, and good wear resistance and tear resistance, effectively resisting the impact of sharp objects. The groove bottom reinforcing ring 4 has an outer circular structure with a "U"-shaped cross-section. This unique structural design allows it to fit tightly into the wheel groove 3 of the tire body 1. During the manufacturing process, the groove bottom reinforcing ring 4 is initially sewn onto the bottom and inner wall of the wheel groove 3 using high-temperature resistant, high-strength polyester thread on an industrial sewing machine. Then, using a thermal bonding process, under a high temperature of 150-180℃ and a pressure of 0.5-1MPa, the reinforcing ring and the rubber material of the tire body 1 are fully fused together to form a firm connection, thereby ensuring that the groove bottom reinforcing ring 4 will not shift or fall off during vehicle operation, continuously providing reliable puncture protection for the wheel groove 3.

[0024] Furthermore, the puncture-resistant braided layer 5 is located at the center of the inner side of the tire body 1. It is woven from high-strength ultra-high molecular weight polyethylene fibers, which are several times stronger than steel wires and possess excellent flexibility. The puncture-resistant braided layer 5 has an inner circular structure with a curved rectangular cross-section. This shape better conforms to the inner curved surface of the tire, evenly dispersing the impact force from the outside. The puncture-resistant braided layer 5 is bonded to the tire body 1 through a rubber vulcanization process. During vulcanization, the temperature is controlled at 140-160℃, and the pressure is maintained at 1-1.5MPa, ensuring that the puncture-resistant braided layer 5 and the rubber of the tire body 1 are tightly bonded into a whole. The braided armor ring 6 and the molded ring 9 are compositely arranged between the puncture-resistant braided layer 5 and the polymer repair layer 7. The puncture-resistant braided layer 5 not only has strong puncture resistance itself but also provides a stable support foundation for the braided armor ring 6 and the molded ring 9, jointly constructing the protective system on the inner side of the tire.

[0025] Furthermore, the braided armor ring 6 is made of 304 stainless steel wire with a diameter of 0.3-0.5mm. 304 stainless steel wire possesses excellent strength, corrosion resistance, and fatigue resistance, effectively resisting punctures from sharp objects. The braided armor ring 6 has a metal ring structure, with its sides welded to two opposing molded rings 9. The molded rings 9 are made of Q235 carbon steel and are stamped into a side-standing "U" shape. Before welding, the welding area between the molded rings 9 and the braided armor ring 6 is ground to remove the surface oxide layer and impurities. Then, argon arc welding is used, with the welding current controlled at 80-120A to ensure a strong and reliable connection. After welding, the braided armor ring 6 and molded ring 9 are firmly bonded between the puncture-resistant braided layer 5 and the polymer repair layer 7. The "U" shape of the molded ring 9 reinforces the braided armor ring 6 and provides a limiting boundary for the polymer repair layer 7, enhancing the stability and protective performance of the tire's internal structure.

[0026] Furthermore, the inner lip thickening liner 8 is made of butyl rubber, which has good airtightness and aging resistance. Its thickness is 3-5mm, and it is bonded to the inner side of the inner lip edge of the tire body 1 via a hot-pressing process. Hot pressing ensures a tight bond between the inner lip thickening liner 8 and the tire body 1, effectively enhancing the structural strength of the tire's inner ring. The polymer repair layer 7 is located between the two inner lip thickening liners 8. This repair layer is made of a self-healing polymer material, which can quickly flow and fill the puncture hole when punctured by a sharp object, achieving a self-repair function. The two opposing inner lip thickening liners 8 restrict the displacement of the polymer repair layer 7, ensuring that the polymer repair layer 7 remains in the correct position during normal tire use and when punctured, thus enabling timely and effective self-repair function and maintaining the tire's airtightness and normal performance.

[0027] The working principle is as follows: First, when the tire is impacted by a sharp object, the reinforcing ring 4 at the bottom of the groove 3 takes effect. The reinforcing ring 4, which is woven from high-strength aramid fibers and is in the shape of a "U", effectively disperses the impact force of the sharp object due to its high strength and high modulus. At the same time, it fits tightly with the structural design of the groove 3, so that it can offset most of the puncture force and prevent the sharp object from puncturing the tire body 1 from the groove 3.

[0028] Secondly, if a sharp object penetrates the wheel groove 3 and continues inward, the puncture-resistant braided layer 5 becomes a second line of defense. Relying on the high strength of the fibers, it prevents the sharp object from penetrating further, reducing the risk of tire puncture. Then, even if a sharp object breaks through the puncture-resistant braided layer 5, the metal protective structure composed of the braided armor ring 6 and the molded ring 9 plays a crucial role. The braided armor ring 6 is woven from 304 stainless steel wire, and the molded ring 9 is welded and reinforced to it. Together, they form a robust metal barrier. Thanks to the strength and corrosion resistance of the stainless steel wire, it effectively resists punctures by sharp objects, preventing damage to the tire's internal critical structure.

[0029] Finally, if a sharp object successfully penetrates the braided armor ring 6 and the molded ring 9, the polymer repair layer 7 will immediately activate its self-healing function. The polymer repair layer 7 is made of a self-healing polymer material. When punctured, the material rapidly flows and fills the puncture hole, while the thickened inner lip liner 8 on both sides restricts the displacement of the polymer repair layer 7, ensuring precise filling of the hole. This achieves tire self-repair, maintains tire airtightness and normal performance, and ensures safe vehicle operation.

[0030] Any technical solution that achieves the above-mentioned technical effects by utilizing the technical solution described in this utility model, or by designing a similar technical solution inspired by the technical solution described in this utility model, falls within the protection scope of this utility model.

Claims

1. A puncture-resistant tire, characterized in that, It includes a tire body (1), a rim (2), a tread groove (3), a groove bottom reinforcement ring (4), a puncture-proof woven layer (5), a woven armor ring (6), a polymer repair layer (7), an inner lip thickening liner (8) and a forming ring (9). A rim (2) is arranged inside the inner lip of the tire body (1), and tread grooves (3) are arranged on its surface. A groove bottom reinforcement ring (4) is arranged inside the tread groove (3). The inner side of the tire body (1) is successively laminated with a puncture-proof woven layer (5), a woven armor ring (6), a polymer repair layer (7) and an inner lip thickening liner (8). The forming ring (9) is welded to the side of the woven armor ring (6).

2. The puncture-resistant tire as described in claim 1, characterized in that: The groove bottom reinforcement ring (4) is an outer liner circular structure woven from high-strength fibers, and its cross-section is a "凵" shape. The groove bottom reinforcement ring (4) is fixedly arranged on the groove bottom and inner wall of the tread groove (3) of the tire body (1) by means of sewing and thermal lamination.

3. A puncture-resistant tire as described in claim 2, characterized in that: The puncture-proof woven layer (5) laminated at the center of the inner side of the tire body (1) is an inner liner circular structure woven from high-strength fibers, and its cross-section is a curved rectangle. The woven armor ring (6) and the forming ring (9) are laminated between the puncture-proof woven layer (5) and the polymer repair layer (7).

4. A puncture-resistant tire as described in claim 3, characterized in that: The woven armor ring (6) is a metal ring structure woven from small-diameter metal wires, and its side is welded to the forming ring (9) with a cross-section of a standing "凵" shape. The two forming rings (9) are arranged opposite to each other.

5. A puncture-resistant tire as described in claim 4, characterized in that: The forming ring (9) is close to the inner lip thickening liner (8) arranged on the side of the inner ring of the tire body (1). The inner lip thickening liner (8) is laminated inside the inner lip of the tire body (1). The polymer repair layer (7) is located between the two inner lip thickening liners (8), and the displacement of the polymer repair layer (7) can be restricted by the two inner lip thickening liners (8).

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