A labyrinth duct structure cross-country tire

CN224810412UActive Publication Date: 2026-09-29SHANDONG LINGLONG TIRE CO LTD
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Patent Information

Application Number
CN202522151200.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-11
Publication Date
2026-09-29
Estimated Expiration
2035-10-11

AI Technical Summary

Technical Problem

但是现有技术中,胎面结构中沟的容积比例的增大,降低了花纹块的整体占比,降低单个花纹块强度的同时,导致轮胎周向方向的刚性降低,特别地,多数人选择采用降低轮胎气压的方法,更多地提升轮胎牵引性能,与此同时,轮胎周向方向的刚性会进一步减弱,而轮胎在行驶过程中,刚性的减弱会增加轮胎生热,降低轮胎花纹块耐久性能,易出现花纹块裂口、崩块等现象,此外,刚性的减弱会增加轮胎响应的滞后性,降低轮胎操控性能

Benefits of technology

[0012](1)、本实用新型通过设计第一几何花纹块、第二几何花纹块、第三几何花纹块、第四几何花纹块、第五几何花纹块和第六几何花纹块等部件,提升轮胎周向与横向刚性,优化操控及牵引性能,减少花纹块裂口与崩块;使车辆在崎岖、松软路面及无路地区具备良好抓地力,增大胎面沟槽容积以提升对泥沙的包容性,优化牵引性能;提升胎面曲挠性、改善磨损性能、减少热量产生、降低滚动阻力,增加钢片数量到特定程度可改进湿地牵引、雪地牵引、滚动阻力及胎面磨损性能。

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Abstract

The utility model belongs to tire technical field, concretely relates to a labyrinth formula pipeline structure cross -country tire, including the tread layer, the inside of tread layer is provided with the airtight layer, the inside of airtight layer is provided with the first anti -drop layer, the inside of first anti -drop layer is provided with the reinforcing layer, the utility model discloses through design first geometric pattern piece, second geometric pattern piece, third geometric pattern piece, fourth geometric pattern piece, fifth geometric pattern piece and sixth geometric pattern piece etc. component, promote tire circumference and lateral rigidity, optimization control and traction performance, reduce pattern piece crack and collapse piece, make vehicle have good adhesion on rugged, soft road surface and no road area, increase the tread groove volume to promote the inclusiveness to silt, optimize the traction performance, improve the tread flexibility, improve the wear performance, reduce the heat generation, reduce the rolling resistance, increase the number of steel sheet to a certain extent can improve the wetland traction, snowfield traction, rolling resistance and tread wear performance.
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Description

Technical Field

[0001] This utility model relates to the field of tire technology, specifically to a labyrinthine tube structure off-road tire. Background Technology

[0002] Tires are a crucial component of vehicle operation, and choosing the right tires can improve driving safety and comfort. Off-road tires are suitable for driving in the wild. For example, utility model patent CN220785356U discloses a new type of off-road tire. The tire tread has longitudinal grooves running from one end to the other, dividing the tread into a left shoulder tread block, a left secondary tread block, a center tread block, a right secondary tread block, and a right shoulder tread block. The left shoulder tread block has a first lateral groove, a lateral zigzag steel sheet, and a lateral short steel sheet. The left secondary tread block has a first oblique groove, an oblique zigzag steel sheet, and a first longitudinal short groove. Compared with traditional technology, this technology reduces tire noise while meeting the required friction, making up for the shortcomings of off-road tires in noise reduction and driving experience, and meeting the driving needs of urban SUVs. However, in existing technologies, increasing the volume ratio of grooves in the tread structure reduces the overall proportion of tread blocks. While reducing the strength of individual tread blocks, this leads to a decrease in the circumferential rigidity of the tire. In particular, many people choose to lower tire pressure to improve tire traction, but this further weakens the circumferential rigidity. During driving, this reduced rigidity increases tire heat generation, reduces the durability of the tread blocks, and makes them more prone to cracking and chipping. Furthermore, reduced rigidity increases tire response lag, reducing handling performance. Therefore, improvements are needed. Utility Model Content

[0003] The purpose of this invention is to provide a labyrinthine tubular structure off-road tire. This addresses the issue of increasing the volume ratio of grooves in the tread structure, reducing the overall proportion of tread blocks, and decreasing the strength of individual tread blocks. This leads to a decrease in circumferential rigidity. In particular, many people choose to lower tire pressure to improve traction, but this further weakens circumferential rigidity. During driving, this reduced rigidity increases tire heat generation, reduces tread block durability, and makes tread block cracks and chipping more likely. Furthermore, reduced rigidity increases tire response lag, reducing handling performance.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a labyrinth-type tubular structure off-road tire, comprising a tread layer, an airtight layer disposed inside the tread layer, a first anti-detachment layer disposed inside the airtight layer, a reinforcing layer disposed inside the first anti-detachment layer, a second anti-detachment layer disposed inside the reinforcing layer, a buffer layer disposed inside the second anti-detachment layer, a base layer disposed inside the buffer layer, a first geometric tread block disposed on the tread layer, a second geometric tread block disposed on the tread layer, a third geometric tread block disposed on the tread layer, a fourth geometric tread block disposed on the tread layer, a fifth geometric tread block disposed on the tread layer, a sixth geometric tread block disposed on the tread layer, a first shoulder tread block disposed on the tread layer, a second shoulder tread block disposed on the tread layer, and steel plates disposed on the tread layer.

[0005] Preferably, the tread layer is made of styrene-butadiene rubber.

[0006] Preferably, the airtight layer is made of butyl rubber.

[0007] Preferably, the reinforcing layer is made of carbon steel wire.

[0008] Preferably, both the first anti-detachment layer and the second anti-detachment layer are made of steel wire cord rubber composite material.

[0009] Preferably, the buffer layer is made of nylon cord rubber composite material.

[0010] Preferably, the base layer is made of natural rubber.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] (1) This utility model improves the circumferential and lateral rigidity of the tire, optimizes handling and traction performance, and reduces tread block cracks and chips by designing components such as the first geometric tread block, the second geometric tread block, the third geometric tread block, the fourth geometric tread block, the fifth geometric tread block and the sixth geometric tread block; enables the vehicle to have good grip on rough, soft roads and roadless areas, increases the tread groove volume to improve the tolerance to mud and sand, optimizes traction performance; improves tread flexibility, improves wear performance, reduces heat generation, reduces rolling resistance, and increases the number of steel plates to a certain extent to improve wet traction, snow traction, rolling resistance and tread wear performance.

[0013] (2) This utility model designs components such as an airtight layer, a first anti-detachment layer, a reinforcing layer, a second anti-detachment layer, and a buffer layer. The airtight layer is made of butyl rubber and can seal the inside of the tire with good sealing effect. The first anti-detachment layer and the second anti-detachment layer work together to prevent the reinforcing layer from slipping. The reinforcing layer can reinforce the tire as a whole. The buffer layer can buffer tire vibration and improve stability. Attached Figure Description

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

[0015] Figure 2 This utility model Figure 1 Top view;

[0016] Figure 3 This utility model Figure 1 The front sectional view.

[0017] In the diagram: 1. Tread layer; 2. Airtight layer; 3. First anti-detachment layer; 4. Reinforcing layer; 5. Second anti-detachment layer; 6. Buffer layer; 7. Base layer; 8. First geometric pattern block; 9. Second geometric pattern; 10. Third geometric pattern block; 11. Fourth geometric pattern block; 12. Fifth geometric pattern block; 13. Sixth geometric pattern block; 14. First shoulder pattern block; 15. Second shoulder pattern block; 16. Steel plate. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] Please see Figure 1 , Figure 3 A labyrinth-style tubular structure off-road tire includes a tread layer 1 made of styrene-butadiene rubber, an airtight layer 2 made of butyl rubber inside the tread layer 1, a first anti-detachment layer 3 inside the airtight layer 2, a reinforcing layer 4 made of carbon steel wire inside the first anti-detachment layer 3, and a second anti-detachment layer 5 inside the reinforcing layer 4. Both the first anti-detachment layer 3 and the second anti-detachment layer 5 are made of steel cord rubber composite material.

[0020] Please see Figure 1 , Figure 2 The second anti-detachment layer 5 has a buffer layer 6 inside, which is made of nylon cord rubber composite material. The buffer layer 6 has a base layer 7 inside, which is made of natural rubber. The tread layer 1 has a first geometric pattern block 8, a second geometric pattern block 9, and a third geometric pattern block 10.

[0021] Please see Figure 1 , Figure 2The tread layer 1 is provided with a fourth geometric pattern block 11, a fifth geometric pattern block 12, a sixth geometric pattern block 13, a first shoulder pattern block 14, a second shoulder pattern block 15, and a steel sheet 16.

[0022] The specific implementation process of this utility model is as follows: The core of the off-road tire tread consists of six geometric tread blocks, which form a grid-like loop structure; its labyrinthine pipe design connects each central edge tread block with the adjacent central tread block, which can balance the stress of the six tread blocks in the process, and ultimately achieve the effects of improving the tire's circumferential and lateral rigidity, optimizing handling and traction performance, and reducing tread block cracks and chips.

[0023] The off-road tire has a 2mm recessed platform on the edge of each geometric tread block, and the six geometric tread blocks are connected in a way that can balance the stress of the six tread blocks when connected. This not only allows the vehicle to have good grip on rough, soft and roadless areas, but also increases the tread groove volume, improves the tire's ability to contain mud and sand, and thus optimizes traction performance.

[0024] Fine steel sheets and a zigzag tread pattern form a labyrinthine tread. When the tire contacts the ground, the steel sheets increase tread flexibility, thereby reducing stress, improving wear performance, reducing heat generation, and ultimately lowering rolling resistance. Therefore, increasing the number of steel sheets to a certain extent can improve the tire's wet traction, snow traction, rolling resistance, and tread wear performance.

[0025] The airtight layer 2, made of butyl rubber, can seal the inside of the tire, resulting in a good tire seal. The cooperation between the first anti-slip layer 3 and the second anti-slip layer 5 can prevent the reinforcing layer 5 from slipping off. The reinforcing layer 4 can reinforce the tire as a whole, and the buffer layer 6 can buffer the vibration generated by the tire, improving the tire's stability.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A labyrinthine tubular structure off-road tire, comprising a tread layer (1), characterized in that: The tread layer (1) has an airtight layer (2) inside, a first anti-detachment layer (3) inside the airtight layer (2), a reinforcing layer (4) inside the first anti-detachment layer (3), a second anti-detachment layer (5) inside the reinforcing layer (4), a buffer layer (6) inside the second anti-detachment layer (5), a base layer (7) inside the buffer layer (6), a first geometric tread block (8) on the tread layer (1), and a second geometric tread block (8) on the tread layer (1). The tread layer (1) is provided with a third geometric pattern block (10), a fourth geometric pattern block (11), a fifth geometric pattern block (12), a sixth geometric pattern block (13), a first shoulder pattern block (14), a second shoulder pattern block (15), and a steel sheet (16).

2. The labyrinthine tubular structure off-road tire according to claim 1, characterized in that: The tread layer (1) is made of styrene-butadiene rubber.

3. The labyrinthine tubular structure off-road tire according to claim 1, characterized in that: The airtight layer (2) is made of butyl rubber.

4. The labyrinthine tubular structure off-road tire according to claim 1, characterized in that: The reinforcing layer (4) is made of carbon steel wire.

5. The labyrinthine tubular structure off-road tire according to claim 1, characterized in that: The first anti-detachment layer (3) and the second anti-detachment layer (5) are both made of steel wire cord rubber composite material.

6. The labyrinthine tubular structure off-road tire according to claim 1, characterized in that: The buffer layer (6) is made of nylon cord rubber composite material.

7. The labyrinthine tubular structure off-road tire according to claim 1, characterized in that: The base layer (7) is made of natural rubber.

Citation Information

Patent Citations

  • Novel off-road tire

    CN220785356U