Anti-pricking tire

Abstract

The invention belongs to the technical field of tires, and particularly relates to an anti-pricking tire which comprises a tire main body, an anti-pricking metal plate layer is arranged in the tire main body, the anti-pricking metal plate layer comprises a plurality of wave-shaped metal plates and longitudinal weaving wires, and the longitudinal weaving wires are arranged on the wave-shaped metal plates. A plurality of wave-shaped metal plates are arranged in a matrix shape to form an anti-pricking metal plate layer, wave grooves are formed in the wave-shaped metal plates, the wave-shaped metal plates are used for resisting pricking, and by adopting a composite structure of the wave-shaped metal plates and the woven wire layer, the anti-pricking performance of the tire is greatly improved. In the running process of a vehicle, when a sharp object such as a nail is punctured into the tire, the tip end of the nail slides along the inclined direction of the wave-shaped groove, so that the nail is prevented from being directly inserted into the tire main body. According to the structural design, the problem that a traditional tire is easily penetrated by sharp objects is effectively relieved, the risks of air leakage and tire burst are reduced, and the use safety of the tire is remarkably improved.

Description

Technical Field

[0001] The present invention belongs to the technical field of tires, and particularly relates to a puncture-resistant tire. Background Art

[0002] Tires are important components of vehicles. Their main functions are to carry the weight of the vehicle, buffer vibrations, improve traction, and ensure the smooth driving of the vehicle. However, in actual use, vehicle tires often face the problem of being punctured by sharp objects (such as nails, gravel, etc.). Once a tire is punctured, gas leakage will not only affect driving safety, but also increase maintenance costs and reduce vehicle usage efficiency.

[0003] Currently, the puncture-resistant tires on the market usually reduce the probability of the tire being punctured by adding a nylon layer inside the tire, using a thicker carcass material, or a puncture-resistant metal braid layer. However, these existing technologies still have certain deficiencies. For example, the single puncture-resistant layer design still has insufficient puncture resistance when facing the high-pressure penetration of sharp objects. The sharp objects are likely to directly penetrate into the tire interior under a large pressure, so the puncture-resistant layer needs to be improved. Summary of the Invention

[0004] Aiming at the problems existing in the prior art, the purpose of the present invention is to provide a puncture-resistant tire, which is a new tire structure that effectively buffers the puncture pressure of sharp objects and prevents them from further damaging the tire body.

[0005] To achieve the above purpose, the present invention provides the following technical solutions:

[0006] A puncture-resistant tire includes a tire body. An anti-puncture metal plate layer is arranged inside the tire body. The anti-puncture metal plate layer includes corrugated metal plates and longitudinal braided wires. There are multiple corrugated metal plates, and the multiple corrugated metal plates are arranged in a matrix to form the anti-puncture metal plate layer. Wave grooves are arranged inside the corrugated metal plates. The corrugated metal plates are used for puncture resistance. The included angle between the wave grooves and the side of the corrugated metal plate is between 30° and 60°. The wave grooves are used to guide the puncturing object to generate an offset, so as to prevent the puncturing object from directly penetrating into the interior of the tire body.

[0007] Furthermore, weaving holes are opened at the four end points of each corrugated metal plate. Transverse braided wires penetrate between the weaving holes of adjacent corrugated metal plates. The ends of the transverse braided wires are tied to the longitudinal braided wires. The transverse braided wires and the longitudinal braided wires are used to connect multiple corrugated metal plates in a matrix.

[0008] Furthermore, a nylon belt layer covers the upper surface of the tire body corresponding to the anti-puncture metal plate layer.

[0009] Further, a steel wire braided layer is covered on the lower surface of the tire body corresponding to the puncture-resistant metal plate layer, and a cord layer is covered on the lower surface of the tire body corresponding to the steel wire braided layer.

[0010] Further, the surface of the tire body is provided with a cross-shaped anti-slip pattern, and a drainage groove is provided in the middle of the surface of the tire body.

[0011] Further, bead sides are provided on both sides of the tire body, a tire seal ring is provided at the edge of the bead side, and a bead wire is provided inside the tire seal ring.

[0012] Further, the bead wire is composed of a plurality of fine steel wires braided together.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0014] The present invention provides a puncture-resistant tire. By adopting the composite structure of the wavy metal plate and the braided wire layer, the puncture resistance of the tire is greatly improved. During the driving of the vehicle, when a sharp object such as a nail penetrates the tire, the tip of the nail will slide along the inclined direction of the wavy groove, thereby preventing the nail from directly penetrating into the interior of the tire body. This structural design effectively alleviates the problem that traditional tires are easily penetrated by sharp objects, reduces the risk of air leakage and tire burst, and significantly improves the safety of tire use.

[0015] The wavy groove designed inside the wavy metal plate can guide the sharp object to deflect when it penetrates by setting an inclined angle between 30° and 60°, avoiding further damage to the tire body.

[0016] The wavy metal plates in the puncture-resistant metal plate layer form a matrix structure through the weaving holes, transverse braided wires, and longitudinal braided wires, connecting multiple wavy metal plates into a whole. This structure not only enhances the overall strength of the puncture-resistant metal plate layer but also effectively disperses the pressure when a sharp object penetrates, enabling the tire to maintain excellent puncture resistance under complex road conditions. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a front view structural schematic diagram of the present invention;

[0018] Figure 2 is a top view partial structural schematic diagram of the present invention;

[0019] Figure 3 is a side view partial vertical sectional structural schematic diagram of the present invention;

[0020] Figure 4 is a partial three-dimensional structural schematic diagram of the puncture-resistant metal plate layer of the present invention;

[0021] Figure 5 of the present inventionFigure 4 Schematic diagram of the enlarged structure of area A;

[0022] Figure 6 Schematic diagram of the three-dimensional structure of the corrugated metal plate of the present invention;

[0023] Figure 7 Top view structure diagram of the corrugated metal plate of the present invention.

[0024] In the drawings, the list of components represented by each reference numeral is as follows:

[0025] 101, tire body; 111, cross-shaped anti-slip pattern; 112, drainage groove; 102, tire side; 121, tire sealing ring; 122, bead wire; 103, nylon belt layer; 104, steel wire braid layer; 105, puncture-resistant metal plate layer; 151, corrugated metal plate; 152, longitudinal braided wire; 153, transverse braided wire; 154, braided hole; 155, corrugated groove; 106, cord layer. Detailed implementation manners

[0026] In order to make the purpose and advantages of the present invention clearer, the present invention will be specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific implementation manners of the present invention, and does not strictly limit the scope of protection specifically claimed by the present invention.

[0027] Embodiment 1:

[0028] As Figures 3 - 7 shown, a puncture-resistant tire includes a tire body 101, and a puncture-resistant metal plate layer 105 is provided inside the tire body 101; the puncture-resistant metal plate layer 105 includes a corrugated metal plate 151 and a longitudinal braided wire 152; a plurality of corrugated metal plates 151 are provided, and the plurality of corrugated metal plates 151 are arranged in a matrix to form the puncture-resistant metal plate layer 105; a corrugated groove 155 is provided inside the corrugated metal plate 151, the corrugated groove 155 is an inclined groove-shaped structure, and the included angle between the corrugated groove 155 and the side of the corrugated metal plate 151 is between 30° and 60°; the corrugated metal plate 151 is used for puncture resistance, and the corrugated groove 155 is used to guide the sharp object to generate an offset when piercing, so as to prevent the sharp object from directly piercing into the inside of the tire body 101; the surface of the corrugated groove 155 is specially treated, such as spraying an anti-rust coating, to improve its durability and corrosion resistance.

[0029] As Figures 4 - 7As shown in the figure, braided holes 154 are provided at the four end points of the wavy metal plate 151. The diameter of the braided holes 154 is 2-5 mm. A transverse braided wire 153 runs through between the braided holes 154 of adjacent wavy metal plates 151. The diameter of the transverse braided wire 153 is 0.5-1 mm and it is made of high-strength stainless steel material. The end of the transverse braided wire 153 is fixed to the longitudinal braided wire 152 by welding or tying. The longitudinal braided wire 152 is formed by stranding multiple steel wires and has a diameter of 1-2 mm. It is used to connect multiple wavy metal plates 151 together, thus forming a stable anti-puncture metal plate layer 105 and providing an overall anti-puncture strength.

[0030] As Figure 3 shown, a nylon belt layer 103 covers the upper surface of the tire body 101 corresponding to the anti-puncture metal plate layer 105. The nylon belt layer 103 is made of high-strength nylon fibers and has a thickness of 1-2 mm. It is used to enhance the compressive performance of the anti-puncture metal plate layer 105 and also plays a fixing role.

[0031] As Figure 3 shown, a steel wire braided layer 104 covers the lower surface of the tire body 101 corresponding to the anti-puncture metal plate layer 105. The steel wire braided layer 104 is made of a high-strength steel wire mesh structure and has a mesh hole diameter of 3-5 mm. It is used to provide bottom support for the anti-puncture metal plate layer 105. A cord layer 106 further covers the lower surface of the steel wire braided layer 104. The cord layer 106 is composed of multiple layers of cord fibers stacked together and has a thickness of 2-3 mm. It is used to enhance the overall structural strength of the tire and avoid performance degradation caused by excessive wear during long-term driving.

[0032] As Figures 1 - 3 shown, a cross-shaped anti-slip pattern 111 is provided on the surface of the tire body 101. The depth of the anti-slip pattern is 1-2 mm and it is used to increase the grip and anti-slip performance of the tire. A drainage groove 112 is provided in the middle of the surface of the tire body 101. The width of the drainage groove 112 is 2-3 mm and the depth is 1-2 mm. It is used to quickly drain the water on the surface of the tire during rainy days, thereby improving the driving stability.

[0033] As Figure 1 and Figure 3 shown, bead sides 102 are provided on both sides of the tire body 101. A tire seal ring 121 is provided at the edge of the bead side 102. A bead wire 122 is provided inside the tire seal ring 121. The bead wire 122 is composed of multiple fine steel wires braided together. The diameter of the fine steel wire is 0.2-0.5 mm. The bead wire 122 undergoes a special heat treatment process and has high strength and flexibility. It can effectively fix the bead side 102 and ensure the sealing performance between the tire and the wheel hub.

[0034] This design combines a corrugated metal plate 151 with a braided layer structure, which not only improves the puncture resistance of the tire, but also provides excellent safety performance under various complex road conditions. At the same time, through the division of labor and cooperation of each layer of materials, the overall durability and service life of the tire are improved.

[0035] Example 2:

[0036] To verify the puncture resistance effect of the corrugated metal plate and the corrugated groove, corrugated metal plate samples with different inclination angles (30°, 40°, 50°, 60°, 70°) were made. The material was high-strength alloy steel with a thickness of 1.5 mm, and an anti-rust coating was sprayed on the surface. The experiment simulated the effect of a sharp object piercing, and the test conditions were as follows:

[0037] · Test equipment: Puncture strength tester;

[0038] · Test sample size: The width of the corrugated groove is 5 mm and the depth is 3 mm;

[0039] · Piercing material: High-carbon steel nail, diameter 2 mm;

[0040] · Control variables: The same nail speed (2 m / s) and pressure (200 N).

[0041] The experimental results are shown in the following table:

[0042]

[0043]

[0044] The experiment shows that when the included angle of the corrugated groove is in the range of 30° - 60°, it can significantly guide the nail to deflect and completely prevent it from penetrating the tire body; when the angle increases to 70°, the nail deflection effect weakens and penetration occurs.

[0045] Example 3:

[0046] To verify the strength of the puncture-resistant metal plate layer, a corrugated metal plate sample with a matrix connection was made. The thickness of the corrugated metal plate was 2 mm, the diameter of the transverse braided wire was 1 mm, and the diameter of the longitudinal braided wire was 1.5 mm. The sample size was 200 mm × 200 mm. Different pressures were applied on a press to test the maximum bearing capacity and deformation of the puncture-resistant metal plate layer:

[0047] · Pressure range: 50 N to 500 N;

[0048] · Control variables: The same thickness of the corrugated metal plate and the material of the braided wire;

[0049] · Data collection: Record the deformation under different pressures.

[0050] The experimental results are shown in the following table:

[0051]

[0052] The experiment shows that the puncture-resistant metal plate layer can effectively disperse pressure through the braided wire matrix structure, and still maintain good stability under 500 N, which is suitable for actual driving conditions.

[0053] Example 4:

[0054] To test the protective effects of the nylon belt layer and the steel wire braided layer on the puncture-resistant metal plate layer, the following materials are selected:

[0055] · Nylon belt layer: high-strength nylon fiber, with a thickness of 2 mm;

[0056] · Steel wire braided layer: high-strength steel wire with a diameter of 1.5 mm, and the mesh diameter is 4 mm;

[0057] · Test method: Simulate the stress distribution after a sharp object penetrates, and measure the strain values of the nylon belt layer and the steel wire braided layer through a strain gauge.

[0058] The results of the comparative experiment are as follows:

[0059]

[0060] The experimental results show that the synergistic effect of the nylon belt layer and the steel wire braided layer can significantly reduce the pressure transfer of sharp objects to the puncture-resistant metal plate layer and improve the overall protection performance.

[0061] Example 5:

[0062] To verify the functions of the drainage grooves and the anti-slip patterns, tire samples with different anti-slip pattern depths (1 mm, 2 mm) and drainage groove widths (2 mm, 3 mm, 4 mm) on the surface are made, and their grip and drainage performance are tested:

[0063] · Test equipment: Tire grip tester and rain simulation platform;

[0064] · Test variables: Different anti-slip pattern depths and drainage groove widths;

[0065] · Controlled variables: The same tire material and speed (60 km / h).

[0066] The experimental results are shown in the following table:

[0067]

[0068] The experiment shows that when the anti-slip pattern depth is 2 mm and the drainage groove width is 3 - 4 mm, the tire shows the best grip and drainage performance, which is suitable for complex road conditions in rainy days.

[0069] The working principle of the present invention is as follows:

[0070] First, the tire body 101 is installed on the wheel hub, such that the tire sealing ring 121 on the side of the tire side 102 is stuck inside the wheel hub, thereby realizing the installation of the tire body 101.

[0071] When the vehicle is in motion, if the tire body 101 is punctured by a nail, the tip of the nail is stuck inside the wave groove 155 of the corrugated metal plate 151. Since the wave groove 155 is an inclined groove, under the action of pressure, the tip of the nail slides along the inclined wave groove 155, preventing the nail from directly penetrating into the interior of the tire body 101. The steel wire braid layer 104 at the bottom of the corrugated metal plate 151 provides support for the corrugated metal plate 151 and cushions the pressure of the nail puncture.

[0072] The above is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention. Structures, devices, and operation methods not specifically described and explained in the present invention are implemented according to the conventional means in the art without special explanation and limitation.

Claims

1. A puncture-resistant tire, comprising a tire body (101), characterized in that: An anti-puncture metal plate layer (105) is provided inside the tire body (101). The anti-puncture metal plate layer (105) includes corrugated metal plates (151) and longitudinal braided wires (152). A plurality of the corrugated metal plates (151) are provided, and the plurality of corrugated metal plates (151) are arranged in a matrix to form the anti-puncture metal plate layer (105). A corrugated groove (155) is provided inside the corrugated metal plate (151). The corrugated metal plate (151) is used for anti-puncture. The included angle between the corrugated groove (155) and the side of the corrugated metal plate (151) is between 30° and 60°. The corrugated groove (155) is used to guide the puncturing object to generate an offset, so as to prevent the puncturing object from directly inserting into the inside of the tire body (101).

2. The puncture-resistant tire according to claim 1, characterized in that: Weaving holes (154) are provided at the four end points of the corrugated metal plate (151). A transverse braided wire (153) penetrates between the weaving holes (154) of adjacent corrugated metal plates (151). The end of the transverse braided wire (153) is tied to the longitudinal braided wire (152). The transverse braided wire (153) and the longitudinal braided wire (152) are used to connect the plurality of corrugated metal plates (151) in a matrix form.

3. The puncture-resistant tire according to claim 1, wherein: A nylon belt layer (103) covers the upper surface of the tire body (101) corresponding to the anti-puncture metal plate layer (105).

4. The puncture-resistant tire according to claim 1, wherein: A steel wire braided layer (104) covers the lower surface of the tire body (101) corresponding to the anti-puncture metal plate layer (105), and a cord layer (106) covers the lower surface of the tire body (101) corresponding to the steel wire braided layer (104).

5. The puncture-resistant tire according to claim 1, characterized in that: A cross-shaped anti-slip pattern (111) is provided on the surface of the tire body (101), and a drainage groove (112) is provided in the middle of the surface of the tire body (101).

6. The puncture-resistant tire according to claim 1, characterized in that: Bead sides (102) are provided on both sides of the tire body (101). A tire seal ring (121) is provided at the edge of the bead side (102). A bead wire (122) is provided inside the tire seal ring (121).

7. The puncture-resistant tire according to claim 6, wherein: The bead wire (122) is woven and composed of a plurality of fine steel wires.

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