HT tire
By optimizing the tread block design of HT tires, including the alternating arrangement of central steel strips, the wavy sections of lateral steel strips on the tire shoulders, and the distribution of longitudinal grooves, the problems of noise, insufficient grip on wet roads, and poor water drainage performance of HT tires at high speeds have been solved, resulting in higher safety and durability.
Patent Information
- Application Number
- CN202423287555.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-30
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-12-30
AI Technical Summary
Existing HT tires are noisy at high speeds, have insufficient grip on wet roads, and poor water drainage performance, which affects the driving comfort and safety of the vehicle.
The design incorporates alternating central linear steel plates and central Z-shaped steel plates on the central tread block, along with the first central linear steel plate and the central Z-shaped steel plate on the intermediate tread block. Combined with the rational distribution of the wavy sections and longitudinal grooves of the lateral steel plates on the shoulder tread block, the circumferential arrangement and chamfer design of the tread block group are optimized to form an effective drainage and grip system.
It reduces tire noise, improves grip and drainage performance on wet roads, enhances tire safety and durability, and improves vehicle handling stability and driving comfort.
Smart Images
Figure CN223508024U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to the field of tire, especially relate to a HT tire. BACKGROUND
[0002] HT (Highway Terrain) tire is widely used in urban roads and highways, and its performance is directly related to the driving stability, comfort and safety of vehicles. The existing HT tire still has some deficiencies in noise control, grip and drainage performance, which are embodied in the following aspects:
[0003] 1. Noise problem: The traditional HT tire reduces the driving noise by adjusting the pitch design of the pattern, but this method has limited effect at high speed. The resonance noise generated by the friction between the tread and the road surface cannot be completely suppressed by simple pitch change, resulting in loud noise when the vehicle is driving at high speed, which affects the driving comfort and riding experience.
[0004] 2. Grip problem: The existing HT tire usually adopts a linear steel sheet structure, which can provide certain grip performance on dry road surface. However, on wet road surface, the edge effect of the linear steel sheet is weak, and the contact area between the tire and the ground is limited, resulting in insufficient grip, especially in sharp turns and emergency braking, the vehicle is prone to skidding or out of control.
[0005] 3. Drainage performance problem: The existing HT tire usually adopts a longitudinal drainage groove structure to guide the water flow between the tire and the road surface to drain. However, the straight longitudinal groove does not drain water in time at high speed, and the water flow is retained in the groove, which is easy to form a water film, reducing the contact force between the tire and the ground, resulting in decreased grip performance of the vehicle and increased risk of skidding.
[0006] Therefore, how to reduce tire noise, improve wet road grip and enhance drainage performance has become a key technical problem in the field of HT tire, and it is urgent to solve it by improving the pattern design and optimizing the structure. SUMMARY
[0007] The details of one or more embodiments of the utility model are presented in the following drawings and description, so that other features, purposes and advantages of the present application are more concise and easy to understand.
[0008] The utility model provides a kind of HT tire, solve the technical problems such as the noise of existing HT tire is large when driving at high speed, wet road grip is insufficient and drainage performance is not good, with reduce driving noise, improve wet road grip, enhance drainage performance and can effectively improve the driving safety performance of tire etc.
[0009] The utility model discloses a kind of HT tires, including several pattern block groups, the pattern block group includes central pattern block and intermediate pattern block, central pattern block is located at the center of tread, central pattern block is equipped with inclined central linear steel sheet, central Z-shaped steel sheet and central linear groove, the central linear steel sheet extends to central linear groove from the side of central pattern block, the central linear groove extends to central linear steel sheet from the other side of central pattern block, and both are collinear, the central Z-shaped steel sheet extends to the other side of central pattern block from the side of central pattern block, the central linear steel sheet and central Z-shaped steel sheet are alternately arranged along the circumference of tire, and both are parallel to each other;Intermediate pattern block is located at the left and right sides of central pattern block and is center-symmetric, the intermediate pattern block is equipped with inclined first intermediate linear steel sheet, second intermediate linear steel sheet, intermediate Z-shaped steel sheet and intermediate linear groove, the first intermediate linear steel sheet extends to intermediate linear groove from the side of intermediate pattern block, the second intermediate linear steel sheet extends to the other side of intermediate pattern block from intermediate linear groove, the intermediate linear groove extends to first intermediate linear steel sheet and second intermediate linear steel sheet respectively from the side of intermediate pattern block, and intersects, the intermediate Z-shaped steel sheet extends to the other side of intermediate pattern block from the side of intermediate pattern block, and is alternately arranged along the circumference of tire with the first intermediate linear steel sheet, the first intermediate linear steel sheet, second intermediate linear steel sheet and intermediate Z-shaped steel sheet are parallel to each other.
[0010] In some embodiments, the pattern block group further includes shoulder pattern block, the shoulder pattern block is located at the inner and outer sides of the tire, the shoulder pattern block is equipped with shoulder linear groove, the shoulder linear groove is opened at one end close to the tread pattern block, and the other end is closed on the shoulder pattern block.
[0011] In some embodiments, the two sides of the shoulder linear groove are respectively equipped with a plurality of shoulder transverse steel sheets and square grooves, the shoulder transverse steel sheet is opened at one end close to the tread pattern block, and the other end is closed on the shoulder pattern block, the shape of the shoulder transverse steel sheet is two straight sections, and a middle wave-shaped section, the square groove is located at the side away from the shoulder transverse steel sheet.
[0012] In some embodiments, central longitudinal groove is formed between the intermediate pattern block and the central pattern block, and shoulder longitudinal groove is formed between the intermediate pattern block and the shoulder pattern block.
[0013] In some embodiments, the distance between adjacent central linear steel sheet and central Z-shaped steel sheet is 18%~24% of the circumferential width of the central pattern block, and the distance between adjacent first intermediate linear steel sheet and intermediate Z-shaped steel sheet is 22%~26% of the circumferential width of the intermediate pattern block.
[0014] In some embodiments, the angle between the central linear steel sheet and the first intermediate linear steel sheet and the tire axis is 30-60 degrees.
[0015] In some embodiments, the distance between the two adjacent shoulder transverse steel sheets on either side of the shoulder linear groove is 13-17% of the circumferential width of the shoulder block.
[0016] In some embodiments, the length of the wavy section of the shoulder transverse steel sheet is 50-70% of the axial width of the shoulder block, the distance between adjacent peaks and valleys in the wavy section of the shoulder transverse steel sheet in the tire circumferential direction is 3-6mm, and the distance between adjacent peaks in the tire axial direction is 7-12mm.
[0017] In some embodiments, the central longitudinal groove and the shoulder longitudinal groove are provided with cutting angles arranged asymmetrically and spaced in the tire circumferential direction, the axial width of the cutting angle is 1-3mm, the depth of the cutting angle is 3-4mm, and the angle of the cutting angle with the tire radial direction is 5-15 degrees.
[0018] In some embodiments, the plurality of block groups are periodically arranged in the tire circumferential direction, and the block group contains 3-7 circumferential widths, and the circumferential width of the block group ranges from 40mm to 140mm.
[0019] Compared with the prior art, the utility model has the beneficial effects that:
[0020] 1. The utility model mainly aims at HT tire, not only performs excellently in the aspects of grip, drainage performance, durability and handling stability, but also realizes the reduction of rolling resistance and the improvement of environmental protection performance through a series of innovative designs, provides a new idea for the development of current tire technology, solves the problems difficult to overcome in the prior art, and has significant technical progress and application value.
[0021] 2. The utility model realizes the alternate arrangement of the central linear steel sheet of the central block and the central Z-shaped steel sheet, and the structural design of the first intermediate linear steel sheet of the intermediate block and the intermediate Z-shaped steel sheet, so that the tire has excellent friction performance in the longitudinal and transverse directions, especially can provide stronger grip on wet road surface and reduce the risk of skidding.
[0022] 3、The shoulder transverse steel sheet on the shoulder pattern block in the utility model adopts a wave-shaped section design, which can effectively disperse the stress concentration of the shoulder part, reduce the local wear rate, thereby prolonging the service life of the tire. In addition, the wave-shaped section of the shoulder transverse steel sheet is specially designed, which not only allows the tire shoulder to easily pierce the water film when driving on a wet and slippery road, but also increases the contact area of the tire tread and the road surface, thereby increasing the grip of the area and the road surface and improving the safety performance of the tire.
[0023] 4、The utility model discloses a central longitudinal groove and shoulder longitudinal groove design, combined with the reasonable distribution of the central linear groove and the intermediate linear groove, can quickly discharge the water film between the tire and the ground, prevent the occurrence of water sliding phenomenon. The opening design of the shoulder linear groove further enhances the drainage capacity, so that the tire performs more superiorly when driving in the rain.
[0024] 5、The utility model discloses a cutting angle design which is asymmetrically arranged along the tire circumferential direction, which not only can increase the volume of the longitudinal groove and increase the drainage performance when driving on a wet and slippery road, but also the cutting angle with interval and asymmetry design can more easily pierce the water film, increase the grip and improve the safety of the tire.
[0025] 6、The utility model discloses a plurality of pattern block groups are periodically arranged along the tire circumferential direction, and the design contains a plurality of circumferential widths, so that the tire can maintain better control performance when driving at high speed, reduce the vibration caused by uneven road surface, improve driving comfort and safety. DRAWINGS
[0026] The drawings described herein are used to provide further understanding of the utility model and constitute a part of the utility model. The illustrative embodiments of the utility model and the description thereof are used to explain the utility model and do not constitute improper limitation on the utility model. In the drawings:
[0027] Fig. 1 The structure schematic view of the HT tire provided by the utility model embodiment;
[0028] Fig. 2 The structure schematic view of the pattern block group provided by the utility model embodiment;
[0029] In the above drawings:
[0030] 1-central pattern block; 101-central linear steel sheet; 102-central Z-shaped steel sheet; 103-central linear groove; 2-intermediate pattern block; 201-first intermediate linear steel sheet; 202-second intermediate linear steel sheet; 203-intermediate Z-shaped steel sheet; 204-intermediate linear groove; 3-shoulder pattern block; 301-shoulder linear groove; 302-shoulder transverse steel sheet; 303-square recess; 4-central longitudinal groove; 5-shoulder longitudinal groove; 6-cutting angle. DETAILED DESCRIPTION
[0031] In order to make the purpose, technical scheme and advantages of the utility model more clearly, the following will combine the drawings and examples to describe and explain the utility model. It should be understood that the specific examples described here are only used to explain the utility model, and are not used to limit the utility model. Based on the examples provided by the utility model, all other examples obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.
[0032] The utility model embodiment provides HT tire, reference Figs. 1-2As shown, the HT tire at least includes a plurality of block groups, which include a central block 1 and an intermediate block 2. The central block 1 is located at the center of the tread, and is provided with an inclined central linear steel sheet 101, a central Z-shaped steel sheet 102, and a central linear groove 103. The central linear steel sheet 101 extends inward from one side of the central block 1 to the central linear groove 103, the central linear groove 103 extends inward from the other side of the central block 1 to the central linear steel sheet 101, and the two are collinear. The central Z-shaped steel sheet 102 extends inward from one side of the central block 1 to the other side of the central block 1. The central linear steel sheet 101 and the central Z-shaped steel sheet 102 are alternately arranged along the tire circumferential direction and parallel to each other. The intermediate block 2 is located on the left and right sides of the central block 1 and is centrally symmetric. The intermediate block 2 is provided with an inclined first intermediate linear steel sheet 201, a second intermediate linear steel sheet 202, an intermediate Z-shaped steel sheet 203, and an intermediate linear groove 204. The first intermediate linear steel sheet 201 extends inward from one side of the intermediate block 2 to the intermediate linear groove 204. The second intermediate linear steel sheet 202 extends outward from the intermediate linear groove 204 to the other side of the intermediate block 2. The intermediate linear groove 204 extends inward from one side of the intermediate block 2 and intersects with the first intermediate linear steel sheet 201 and the second intermediate linear steel sheet 202, respectively. The intermediate Z-shaped steel sheet 203 extends inward from one side of the intermediate block 2 to the other side of the intermediate block 2, and is alternately arranged with the first intermediate linear steel sheet 201 along the tire circumferential direction. The first intermediate linear steel sheet 201, the second intermediate linear steel sheet 202, and the intermediate Z-shaped steel sheet 203 are parallel to each other. The specific design of the central block 1 and the intermediate block 2 optimizes the drainage performance and grip of the tire. The alternating arrangement of the central linear steel sheet 101 and the central Z-shaped steel sheet 102 enhances the stability of the tire on wet road surfaces. The structure of the intermediate block 2 improves the anti-skid ability of the tire through the combination of the first intermediate linear steel sheet 201, the second intermediate linear steel sheet 202, and the intermediate Z-shaped steel sheet 203, and provides more uniform ground pressure distribution. The design of the central linear groove 103 and the intermediate linear groove 204 further improves the drainage efficiency of the tire. Compared with the prior art, the HT tire performs well in complex road conditions. The reasonable layout of the central block 1 and the intermediate block 2 not only effectively reduces the risk of tire slip on wet road surfaces, but also enhances the wear resistance and service life of the tire. In addition, the optimized grip design improves the handling performance of the vehicle and provides higher driving safety.
[0033] In some embodiments, the total number of central linear steel sheets 101 and central Z-shaped steel sheets 102 on the central block 1 is preferably 4-6, and the total number of the first intermediate linear steel sheet 201, the second intermediate linear steel sheet 202, and the intermediate Z-shaped steel sheet 203 on the intermediate block 2 is preferably 5-7, and the total number of steel sheets on the intermediate block 2 is more than that on the central block 1. The total number of steel sheets on the central block 1 and the intermediate block 2 is designed based on the different functional requirements of the tread area. The central block 1 mainly undertakes the tasks of drainage and grip in straight-line driving, and the number of its steel sheets 4-6 meets the requirements of stability and drainage efficiency. While the number of steel sheets 5-7 on the intermediate block 2 is relatively large, it can provide the tire with stronger lateral grip and anti-skid performance, especially in turning or complex road conditions. This design ensures that different areas of the tread have clear division of labor in function, while maintaining the overall performance coordination; by optimizing the number of steel sheets on the central block 1 and the intermediate block 2, the tire achieves a balance between stability and grip. The smaller number of steel sheets on the central block 1 reduces rolling resistance and improves fuel efficiency; the larger number of steel sheets on the intermediate block 2 enhances the maneuverability and lateral stability when turning.
[0034] Further, the block group further includes a shoulder block 3, which is arranged on the inner and outer sides of the tire and is provided with a shoulder linear groove 301. The shoulder linear groove 301 is open at one end near the tread block and is closed at the other end on the shoulder block 3; the shoulder block 3 is designed to be arranged on the inner and outer sides, and together with the central block 1 and the intermediate block 2, it forms an optimized drainage and grip system. The open end of the shoulder linear groove 301 near the tread provides an additional drainage channel, enhancing the drainage capacity, while the closed end ensures the structural integrity of the shoulder part, effectively reducing stress concentration in the shoulder area and improving the durability of the tire. The design of the shoulder block 3 further enhances the grip of the tire when turning, improving the handling stability of the vehicle in complex road conditions. In addition, the structural design of the shoulder linear groove 301 improves the drainage performance of the tire and reduces the risk of water sliding. At the same time, the closed structure reduces the possibility of mud entering the groove, reducing maintenance costs.
[0035] Further, the shoulder line groove 301 is provided with a plurality of shoulder transverse steel sheets 302 and square grooves 303 on both sides. The shoulder transverse steel sheet 302 is open at one end close to the tread block and closed at the other end on the shoulder block 3, and its shape is a straight line segment at both ends and a wavy segment in the middle. The square groove 303 is provided on the side away from the shoulder transverse steel sheet 302. The design of the shoulder transverse steel sheet 302 and the square groove 303 further optimizes the structural performance of the shoulder part. The wavy segment of the shoulder transverse steel sheet 302 forms a synergistic effect with the shoulder line groove 301 by adjusting its shape, providing stronger grip while dispersing load stress, thereby improving the durability of the shoulder area. The design of the square groove 303 provides additional heat dissipation channels for the tire, helping to reduce heat accumulation in the shoulder area, while increasing the mud discharge capacity of the shoulder part and improving the adaptability of the tire in complex terrain. The shoulder transverse steel sheet 302 of this design enhances the tire's anti-skid ability on wet roads and in curves, and the wavy segment in the middle effectively improves the traction and optimizes the handling performance. In addition, the arrangement of the square groove 303 not only reduces the accumulation of mud on the shoulder, but also improves the heat dissipation efficiency of the tire and prolongs the service life of the tire.
[0036] Further, the central longitudinal groove 4 is formed between the intermediate block 2 and the central block 1, and the shoulder longitudinal groove 5 is formed between the intermediate block 2 and the shoulder block 3. The arrangement of the central longitudinal groove 4 and the shoulder longitudinal groove 5 balances the drainage performance and stability of the tire. The central longitudinal groove 4 can quickly drain the water accumulated in the center of the tread during tire driving, reducing the risk of slipping on wet roads. At the same time, the shoulder longitudinal groove 5 provides an auxiliary channel for drainage on both sides of the tire by connecting the intermediate block 2 and the shoulder block 3, effectively enhancing the overall drainage efficiency; by designing the central longitudinal groove 4 and the shoulder longitudinal groove 5, the drainage performance of the tire is significantly enhanced, suitable for rainy and wet road conditions; the design of the shoulder longitudinal groove 5 further improves the lateral stability of the tire, making it more stable when turning and under lateral stress.
[0037] Further, the distance between the adjacent central linear steel sheet 101 and the central Z-shaped steel sheet 102 is 18% to 24% of the circumferential width of the central pattern block 1, and the distance between the adjacent first intermediate linear steel sheet 201 and the intermediate Z-shaped steel sheet 203 is 22% to 26% of the circumferential width of the intermediate pattern block 2. The spacing design of the steel sheets in the central pattern block 1 and the intermediate pattern block 2 optimizes the tire ground pressure through precise proportional distribution. The spacing between the central linear steel sheet 101 and the central Z-shaped steel sheet 102 ensures the stability of the tire in straight-line driving, while avoiding the problem of poor drainage caused by too dense arrangement. The spacing between the first intermediate linear steel sheet 201 and the intermediate Z-shaped steel sheet 203 in the intermediate pattern block 2 is designed to reasonably distribute the tire load pressure, thereby improving the tire's grip on wet roads. Compared with the prior art, this reasonable spacing arrangement effectively reduces the wear rate of the tire, prolongs the service life, and improves the driving comfort and safety.
[0038] Further, the angle between the central linear steel sheet 101 and the first intermediate linear steel sheet 201 and the tire axial direction is 30° to 60°. The inclination angle design of the central linear steel sheet 101 and the first intermediate linear steel sheet 201 fully considers the tire's grip performance and drainage effect on different road conditions. The inclination angle in the range of 30° to 60° helps to disperse the pressure on the tire ground surface and improve the uniformity of the tread pattern. The inclination design can also guide the water to quickly drain along the surface of the steel sheet, thereby enhancing the anti-skid ability on wet roads. A reasonable inclination angle can improve the tire's grip when turning and increase the vehicle's handling stability. The inclination angle of this design significantly improves the performance of the tire, balancing the stability in straight-line driving and the grip ability when turning. In rainy or wet road conditions, the optimized angle can quickly drain the water on the tire surface, reduce the risk of skidding, and enhance the driving safety. In addition, this inclination design can also prolong the service life of the tire pattern and reduce the fuel consumption of the vehicle.
[0039] Further, the distance between the adjacent two shoulder transverse steel sheets 302 on either side of the shoulder linear groove 301 is 13% to 17% of the circumferential width of the shoulder pattern block 3. The spacing between the shoulder transverse steel sheets 302 optimizes the load distribution and drainage capacity in the shoulder area. The spacing in the range of 13% to 17% of the circumferential width of the shoulder pattern block 3 keeps the drainage channel in the shoulder area unblocked, while ensuring the support effect of the shoulder transverse steel sheets 302, effectively improving the grip of the shoulder area. In addition, this spacing range can also reduce the stress concentration in the shoulder area, reduce the risk of damage to the tire under extreme load, and enhance the overall durability. A reasonable spacing between the shoulder transverse steel sheets 302 significantly improves the performance of the tire, especially the handling stability in wet road or sharp corner conditions.
[0040] Furthermore, the length of the wavy section of the shoulder lateral steel plate 302 is 50% to 70% of the axial width of the shoulder tread block 3. The distance between adjacent crests and troughs in the wavy section is 3mm to 6mm in the tire circumferential direction, and the distance between adjacent crests in the tire axial direction is 7mm to 12mm. This ratio between the length of the wavy section of the shoulder lateral steel plate 302 and the axial width of the shoulder tread block 3 is designed to effectively adapt to load changes in the shoulder area when in contact with the ground. The circumferential spacing between the crests and troughs ensures unobstructed drainage channels and provides additional friction under lateral forces, improving tire grip. The axial spacing between the ridges evenly distributes stress in the tire shoulder area, helping to enhance tire stability in corners and the durability of the tire shoulder. In wet or complex road conditions, the 302 wavy section of the lateral steel plate on the tire shoulder achieves a balance between water drainage and grip performance. It not only allows the tire shoulder to easily puncture the water film, but also increases the contact area between the tread and the road surface, thereby increasing the grip of this area and improving tire safety. The optimized length and spacing of the wavy section not only reduces the tire wear rate, but also enhances the heat dissipation capacity of the tire shoulder area, extending tire life.
[0041] Furthermore, the central longitudinal groove 4 and the shoulder longitudinal groove 5 are provided with asymmetrically arranged chamfers 6 along the tire circumference. The axial width of the chamfers 6 is 1mm to 3mm, the depth is 3mm to 4mm, and the angle with the radial direction of the tire is 5° to 15°. The asymmetrical chamfers 6 on both sides of the central longitudinal groove 4 and the shoulder longitudinal groove 5 can effectively break the water film during tire operation, enhancing the tire's drainage performance. These chamfers 6 optimize the drainage channels of the grooves through geometric distribution, significantly improving the tire's grip on wet and slippery roads. At the same time, the specific width, depth, and inclination angle of the chamfers 6 can effectively reduce local stress concentration in the tire tread blocks, extending the tire's durability. The design of the chamfers 6 not only increases the volume of the longitudinal grooves, enhancing drainage performance on wet and slippery roads, but the spaced and asymmetrical design of the chamfers 6 also makes it easier to puncture the water film, increasing grip and improving tire safety.
[0042] Further, a plurality of pattern block groups are arranged periodically along the tire circumferential direction, and the pattern block groups comprise 3-7 circumferential widths, and the circumferential width of the pattern block group ranges from 40mm to 140mm. The design of the periodically arranged pattern block groups along the tire circumferential direction optimizes the ground pressure distribution of the tread, so that the tire can contact the road more evenly during driving, thereby reducing local wear. The combination of 3-7 circumferential widths of the pattern block groups disturbs the contact mode between the tread and the road to some extent, reduces the driving noise, and at the same time realizes higher drainage efficiency through the combination of different widths; the width design of 40mm-140mm can disturb the contact frequency of the pattern block and the road, reduce the contact noise, and ensure the stability and handling performance of the tire; through the reasonable design of the circumferential width of the pattern block group, the tire has better wear resistance and noise suppression ability. On the wet road surface, the periodically arranged pattern block group combination provides continuous and efficient drainage channels, further improving the driving safety.
[0043] In some embodiments, the number of pattern block groups is preferably 25-35, and 5 different circumferential width pattern block groups are arranged periodically along the tire circumferential direction, wherein the ratio between the 5 different circumferential widths is preferably 0.8a:0.9b:1.0a:1.1b:1.2a, wherein a and b are percentage values, a is an odd number, and b is an even number; by setting the number of pattern block groups to 25-35 and using 5 different circumferential width designs, more uniform tire ground pressure distribution is achieved through more diversified pattern block combinations, and the different and specially designed width ratios between the pattern blocks further reduce tire noise and improve driving comfort.
[0044] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, but as long as the combinations of the technical features do not contradict, they should be considered within the scope of the present disclosure.
[0045] The above-described embodiments only express several implementation manners of the present application, and the description is more specific and detailed, but it should not be understood as a limitation on the scope of the present application. It should be noted that for those skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.
Claims
1. An HT tire, characterized in that, It includes several patterned block groups, wherein the patterned block groups include: A central tread block is located at the center of the tread. The central tread block has an inclined central linear steel strip, a central Z-shaped steel strip, and a central linear groove. The central linear steel strip extends inward from one side of the central tread block to the central linear groove. The central linear groove extends inward from the other side of the central tread block to the central linear steel strip, and the two are collinear. The central Z-shaped steel strip extends inward from one side of the central tread block to the other side of the central tread block. The central linear steel strip and the central Z-shaped steel strip are arranged alternately along the tire circumference and are parallel to each other. The intermediate tread blocks are located on the left and right sides of the central tread block and are centrally symmetrical. The intermediate tread blocks are provided with inclined first intermediate linear steel sheets, second intermediate linear steel sheets, intermediate Z-shaped steel sheets, and intermediate linear grooves. The first intermediate linear steel sheet extends inward from one side of the intermediate tread block to the intermediate linear groove. The second intermediate linear steel sheet extends outward from the intermediate linear groove to the other side of the intermediate tread block. The intermediate linear groove extends inward from one side of the intermediate tread block and intersects with the first and second intermediate linear steel sheets respectively. The intermediate Z-shaped steel sheet extends inward from one side of the intermediate tread block to the other side of the intermediate tread block and is arranged alternately with the first intermediate linear steel sheet along the tire circumference. The first intermediate linear steel sheet, the second intermediate linear steel sheet, and the intermediate Z-shaped steel sheet are parallel to each other.
2. The HT tire according to claim 1, characterized in that, The tread block group also includes a shoulder tread block, which is located on the inner and outer sides of the tire. The shoulder tread block has a shoulder linear groove, which is open at one end near the tread block and closed at the other end.
3. The HT tire according to claim 2, characterized in that, The tire shoulder groove has multiple shoulder transverse steel plates and square grooves on both sides. The shoulder transverse steel plate is open at one end near the tread block and closed at the other end on the shoulder tread block. The shape of the shoulder transverse steel plate is a straight section at both ends and a wavy section in the middle. The square groove is located on the side away from the shoulder transverse steel plate.
4. The HT tire according to claim 2, characterized in that, A central longitudinal groove is formed between the intermediate tread blocks and the central tread block, and a shoulder longitudinal groove is formed between the intermediate tread blocks and the shoulder tread blocks.
5. The HT tire according to claim 1, characterized in that, The distance between adjacent central linear steel sheets and central Z-shaped steel sheets is 18% to 24% of the circumferential width of the central patterned block, and the distance between adjacent first intermediate linear steel sheets and intermediate Z-shaped steel sheets is 22% to 26% of the circumferential width of the intermediate patterned block.
6. The HT tire according to claim 1, characterized in that, The angles between the central steel strip and the first intermediate steel strip and the tire axis are both 30° to 60°.
7. The HT tire according to claim 3, characterized in that, The distance between two adjacent lateral steel plates on either side of the shoulder groove is 13% to 17% of the circumferential width of the shoulder tread block.
8. The HT tire according to claim 3, characterized in that, The length of the wavy section of the lateral steel strip on the tire shoulder is 50% to 70% of the axial width of the tire shoulder tread block. The distance between adjacent peaks and troughs in the wavy section of the lateral steel strip on the tire shoulder is 3mm to 6mm in the tire circumferential direction, and the distance between adjacent peaks in the tire axial direction is 7mm to 12mm.
9. The HT tire according to claim 4, characterized in that, The central longitudinal groove and the shoulder longitudinal groove are provided with asymmetrically arranged chamfers spaced along the tire circumference. The axial width of the chamfer is 1mm to 3mm, the depth of the chamfer is 3mm to 4mm, and the angle between the chamfer and the radial direction of the tire is 5° to 15°.
10. The HT tire according to claim 1, characterized in that, The plurality of tread blocks are arranged periodically along the tire circumference, and the tread block group includes 3 to 7 different circumferential widths, with the circumferential width of the tread block group ranging from 40mm to 140mm.