Tire pattern suitable for complex mine road surface

Abstract

A kind of tyre pattern suitable for mine complex road surface, including the pattern repeat unit of covering tread (a) and shoulder (b) being arranged transversely along the circumference of tyre, each pattern repeat unit includes first pattern group and second pattern group, the first pattern group and second pattern group are symmetrically arranged with the center point (0) of the gap between pattern block I (10) and pattern block I (20) as center;Groove is arranged between all pattern blocks.Relative to prior art, groove is arranged between all pattern blocks of the present application, the heat generated in the process of deformation of tyre tread and ground contact in tyre tread, can be effectively dissipated by the pattern groove structure of the present application, reduce the heat generated by the accumulation of tread, prevent the bulging of tread, thereby increasing the service life of tyre, improve the TKPH of tyre tread.

Description

TECHNICAL FIELD

[0001] The present application relates to a tyre intended to be fitted to a vehicle of the heavy civil engineering type, more particularly to the tread of said tyre. BACKGROUND

[0002] Tyres for heavy engineering vehicles are fitted on rims whose nominal diameter is at least equal to 35 inches, in the sense of the CAS (Chinese Annual Standard for Tyre and Rim Valves) and ETRTO (European Tyre and Rim Technical Organisation) standards. The present application is not, however, limited to this type of application, and is described more particularly with reference to radial tyres intended to be fitted to, for example, a dump truck, which is a vehicle for transporting material extracted from a quarry or from an open-cast mine. The operating conditions of tyres for heavy engineering vehicles are severe. Patent CN214492408U discloses a mine tyre pattern suitable for complex mine roads. This tyre pattern is a large block pattern with fewer heat dissipation grooves and heat dissipation holes, which can cause high temperatures in the tyre tread during tyre travel, resulting in tyre tread bulging and reducing the service life of the tyre. SUMMARY

[0003] The tyre tread is of an elastomeric nature, which leads to deformation during contact of the tread with the ground, which generates high temperatures in the tyre tread. The large amount of heat generated in the tyre tread can cause the tyre tread to bulge, thereby reducing the service life of the tyre and making it necessary to prematurely decommission the tyre.

[0004] The technical problem addressed by the present application is to prevent high temperatures from being generated in the tyre tread and to improve the TKPH (TKPH stands for Ton Kilometer Per Hour, which represents the heat resistance of the tyre) of the tyre tread. To solve the above problem, a tyre pattern suitable for complex mine roads is provided.

[0005] The object of the present application is achieved in the following manner:

[0006] A tire pattern suitable for complex mine road surface, comprising a pattern repeat unit covering the tread (a) and the shoulder (b) arranged transversely along the circumference of the tire, each pattern repeat unit comprising a first pattern group and a second pattern group, the first pattern group comprising pattern block I (10), pattern block II (11), shoulder pattern block III (12), pattern block II (21), shoulder pattern block III (22), the second pattern group comprising pattern block I (20), pattern block II (31), shoulder pattern block III (32), pattern block II (41), shoulder pattern block III (42), the first pattern group and the second pattern group are symmetrically arranged with the center point (0) of the gap between pattern block I (10) and pattern block I (20) as the center; the included angle between pattern block II (21) and shoulder pattern block III (22) in the first pattern group is formed respectively and arranged in a strip shape to form a first pattern sub-group in the first pattern group, the included angle between pattern block II (11) and shoulder pattern block III (12) is formed respectively and arranged in a strip shape to form a second pattern sub-group in the first pattern group, the first pattern sub-group and the second pattern sub-group are the same structure and arranged in parallel, the first pattern sub-group and the second pattern sub-group are connected with pattern block I (10) in the middle right side, and grooves are arranged between all pattern blocks.

[0007] The first pattern group is provided with longitudinal pattern groove II (66) between pattern block I (10) and pattern block II (11), and reinforcing rib I (63) is arranged in longitudinal pattern groove II (66); pattern block I (10) and pattern block II (21) are provided with longitudinal pattern groove II (66), and reinforcing rib I (63) is arranged in longitudinal pattern groove II (66); there is longitudinal pattern groove I (67) between shoulder pattern block III (12) and adjacent pattern block II (11), reinforcing rib II (61) is arranged in longitudinal pattern groove I (67), and groove I (62) is arranged in reinforcing rib II (61); shoulder pattern block III (12) comprises shoulder pattern block III side (13) and shoulder pattern block III tread (14), and the corner of the shoulder (b) is between shoulder pattern block III side (13) and shoulder pattern block III tread (14).

[0008] The pattern block I (10) is hexagonal, a heat dissipation hole I (110) is arranged at the center of the pattern block I (10), the heat dissipation hole I (110) extends to a transverse heat dissipation groove III (120) between the pattern block II (11) and the pattern block II (21); the pattern block II (11) is symmetrical heptagonal, the shoulder pattern block III (12) is parallelogram, a heat dissipation groove IV (142) is arranged in the middle of the tread (14) of the shoulder pattern block III, and a heat dissipation hole II (141) is arranged at the bottom of the heat dissipation groove IV (142); a heat dissipation groove V (131) is arranged in the middle of the side (13) of the shoulder pattern block III, and a heat dissipation groove VI (132) is arranged at the upper right of the pattern block IV (13).

[0009] The grooves are arranged between the pattern repeating units, wherein the groove between the pattern block II (11) and the pattern block II (21) is a heat dissipation groove I (65), the groove between the shoulder pattern block III (12) and the shoulder pattern block (22) is a transverse pattern groove I (60), the groove between the pattern block II (11) and the pattern block I (20) is a longitudinal pattern groove II (66), and a reinforcing rib I (63) is arranged in the longitudinal pattern groove II (66); the groove between the pattern block I (10) and the pattern block I (20) is a transverse pattern groove II (140), and a groove II (64) is arranged at the bottom of the transverse pattern groove II (140).

[0010] The middle of the tread is provided with an annular heat dissipation groove II (130).

[0011] The connecting angle between the pattern block II (11) and the shoulder pattern block III (12) is 120°-160°; the width of the heat dissipation groove II (130) is 15%-20% of the width of the pattern block I (10), and the depth is 10%-15% of the depth of the pattern block I (10); the width of the heat dissipation groove III (120) is 40%-60% of the width of the pattern block I (10); the diameter of the heat dissipation hole I (110) is 5mm-15mm, and the depth is 80%-100% of the depth of the pattern block I (10); the heat dissipation groove IV (142) can be circular, rectangular, rhombic or other geometric shapes; when the heat dissipation groove IV (142) is rhombic, the length of the heat dissipation groove IV (142) is 25%-40% of the shoulder pattern block III (12), and the width of the heat dissipation groove IV (142) is 25%-40% of the depth of the shoulder pattern block III (12); the diameter of the heat dissipation hole II (141) is 5mm-15mm, and the depth is 70%-80% of the pattern depth; the width of the heat dissipation groove VI (132) is 45%-50% of the width of the shoulder pattern block III (12), and the depth is 15mm-30mm, the heat dissipation groove VI (132) penetrates the transverse pattern groove I (60); the width of the heat dissipation groove V (131) is 40mm-60mm, and the depth is 15mm-30mm.

[0012] The reinforcing rib II (61) is set to have a width of 100%-110% of the width of the shoulder block III (12) and a height of 40%-60% of the pattern depth; the groove I (62) has a width of 40%-60% of the width of the shoulder block III (12) and a depth of 40%-60% of the depth of the shoulder block III (12); the reinforcing rib I (63) is set to have a width of 50%-70% of the width of the edge of the block II (11) and a height of 40%-60% of the pattern depth.

[0013] The longitudinal groove I (67) has a width of 10mm-15mm and a depth of 50%-60% of the pattern depth; the longitudinal groove II (66) has a width of 10mm-15mm and a depth of 50%-60% of the pattern depth.

[0014] The angle between any adjacent longitudinal grooves is set to be 120°-150°; the depth of the transverse groove I (60) is 90%-105% of the pattern depth, the width is 15%-20% of the width of the shoulder block III (12), the groove wall of the transverse groove I (60) is set to be stepped, the step width is 10mm-20mm; the width of the transverse groove II (140) is 10mm-15mm, the depth is 90%-100% of the pattern depth; the groove II (64) set at the bottom of the transverse groove II (140) has a width of 45%-60% of the width of the transverse groove II (140) and a depth of 10mm-15mm; the angle between the transverse grooves I (60) is set to be 120°-160°.

[0015] Compared with the prior art, all the blocks in the present application are provided with grooves, and the heat generated in the tire tread during the deformation of the tire tread in contact with the ground can be effectively dissipated through the groove structure of the present application, thereby reducing the heat accumulation in the tire tread, preventing the tire tread from bulging, increasing the service life of the tire, and improving the TKPH of the tire tread. BRIEF DESCRIPTION OF DRAWINGS

[0016] Fig. 1 is a schematic view of the three-dimensional structure of the tire pattern.

[0017] Fig. 2 is a top view of the tire pattern.

[0018] Wherein, 10 is tread block I; 110 is heat dissipation hole I; 120 is heat dissipation groove III; 130 is heat dissipation groove II; 140 is lateral tread groove II; 20 is tread block I; 11 is tread block II; 12 is shoulder tread block III; 13 is the side of shoulder tread block III; 131 is heat dissipation groove V; 132 is heat dissipation groove VI; 14 is the tread of shoulder tread block III; 141 is heat dissipation hole II; 142 is heat dissipation groove IV; 21 is tread pattern Block II; 22 is shoulder tread block III; 23 is tread block IV; 31 is tread block II; 32 is shoulder tread block III; 33 is tread block IV; 41 is tread block II; 42 is shoulder tread block III; 43 is tread block IV; 60 is lateral tread groove I; 61 is reinforcing rib II; 62 is groove I; 63 is reinforcing rib I; 64 is groove II; 65 is heat dissipation groove I; 66 is longitudinal tread groove II; 67 is longitudinal tread groove I; a is the tread; b is the shoulder. Detailed Implementation

[0019] As attached Figs. 1-2 As shown, the present invention provides a tire tread pattern suitable for complex road surfaces in mines, including tread repeating units arranged laterally along the tire circumference, covering the tread (a) and shoulder (b). Each tread repeating unit includes a first tread group and a second tread group. The first tread group includes tread block I (10), tread block II (11), shoulder tread block III (12), tread block II (21), and shoulder tread block III (22). Tread blocks I, II (11), and III (12) are preferably set as large tread blocks, which increases the driving performance and service life of the tire. The second tread group includes tread block I (20), tread block II (31), and shoulder tread block III (32). ), Pattern block II (41), and shoulder pattern block III (42). The first pattern group and the second pattern group are symmetrically arranged with the center point (0) of the gap between pattern block I (10) and pattern block I (20) as the center. Pattern block II (21) and shoulder pattern block III (22) in the first pattern group form an angle between each other and are arranged in a strip to form the first pattern subgroup in the first pattern group. Pattern block II (11) and shoulder pattern block III (12) form an angle between each other and are arranged in a strip to form the second pattern subgroup in the first pattern group. The first pattern subgroup and the second pattern subgroup have the same structure and are arranged in parallel. Pattern block I (10) is connected to the middle right side of the first pattern subgroup and the second pattern subgroup. Patterned blocks, reinforcing ribs, and grooves are all labeled with numbers such as I, II, III, etc. for both horizontal and vertical patterned grooves. Patterned blocks with the same number are the same patterned blocks, reinforcing ribs with the same number are the same reinforcing ribs, grooves with the same number are the same grooves, horizontal patterned grooves with the same number are the same horizontal patterned grooves, and similarly, vertical patterned grooves with the same number are the same vertical patterned grooves.

[0020] The first pattern group is provided with a longitudinal pattern groove II (66) between the pattern block I (10) and the pattern block II (11), and a reinforcing rib I (63) is arranged in the longitudinal pattern groove II (66); the first pattern group is provided with a longitudinal pattern groove II (66) between the pattern block I (10) and the pattern block II (21), and a reinforcing rib I (63) is arranged in the longitudinal pattern groove II (66); the shoulder pattern block III (12) and the adjacent pattern block II (11) are provided with a longitudinal pattern groove I (67), a reinforcing rib II (61) is arranged in the longitudinal pattern groove I (67), a groove I (62) is arranged in the reinforcing rib II (61), the shoulder pattern block III (12) comprises a side surface (13) of the shoulder pattern block III and a tread (14) of the shoulder pattern block III, and an angle (b) is formed between the side surface (13) of the shoulder pattern block III and the tread (14) of the shoulder pattern block III.

[0021] The pattern block I (10) is a hexagon, the pattern block I (10) is provided with a heat dissipation hole I (110) at the center, the heat dissipation hole I (110) extends a transverse heat dissipation groove III (120) between the pattern block II (11) and the pattern block II (21); the pattern block II (11) is a symmetrical heptagon, the shoulder pattern block III (12) is a parallelogram, the tread (14) of the shoulder pattern block III is provided with a heat dissipation groove IV (142) at the middle, and a heat dissipation hole II (141) is arranged at the bottom of the heat dissipation groove IV (142), in the process of driving the tire, heat is generated in the tire, the heat enters the heat dissipation hole II (141), when the tire tread is subjected to pressure or vibration, the heat dissipation groove IV (142) is a cavity and can suck the heat of the heat dissipation hole II (141) to dissipate the heat; the side surface (13) of the shoulder pattern block III is provided with a heat dissipation groove V (131) at the middle, and the pattern block IV (13) is provided with a heat dissipation groove VI (132) at the upper right. The combination of the heat dissipation groove V (131) and the heat dissipation groove VI (132) can effectively improve the heat dissipation performance of the tire.

[0022] The groove between pattern block II (11) and pattern block II (21) is heat dissipation groove I (65), the groove between shoulder pattern block III (12) and shoulder pattern block III (22) is transverse pattern groove I (60), the groove between pattern block II (11) and pattern block I (20) is longitudinal pattern groove II (66), and reinforcing rib I (63) is arranged in longitudinal pattern groove II (66); the groove between pattern block I (10) and pattern block I (20) is transverse pattern groove II (140), and recess II (64) is arranged at the bottom of transverse pattern groove II (140). Heat dissipation groove VI (132) and transverse pattern groove I (60) are in communication, and negative pressure is generated at the shoulder part during tire operation, which is conducive to the entry of external air into the pattern groove wall of the tire tread and improves the heat dissipation capacity of the tire. The overall pattern groove wall is in communication, and air flows smoothly during tire rotation, which can effectively improve the heat dissipation capacity of the tire tread. A large number of various grooves and heat dissipation holes are arranged in the tire tread, which greatly reduces the heat generated during tire operation. The heat dissipation grooves and heat dissipation grooves are reasonably combined, which better accelerates the heat dissipation speed of the tire tread.

[0023] The middle part of the tire tread is provided with annular heat dissipation groove II (130), and the heat generated by the tire pattern block can be effectively dissipated from heat dissipation groove II (130) or from the groove between the pattern blocks through air flow. During tire operation, when the middle part of the tire is in contact with the ground and is compressed, the heat accumulated in heat dissipation hole I (110) can overflow from lateral heat dissipation groove III (120), and be dissipated through the groove between pattern block I (10) and pattern block II (11) and the groove between pattern block I (10) and pattern block II (21).

[0024] The connecting angle of the pattern block II (11) and the shoulder pattern block III (12) is 120°, or 160°, or any angle between 120° and 160°. The width of the heat dissipation groove II (130) is set to 15% of the width of the pattern block I (10), or 20%, or any value between 15% and 20%. The depth of the heat dissipation groove II (130) is set to 10% of the depth of the pattern block I (10), or 15%, or any value between 10% and 15%. The width of the heat dissipation groove III (120) is set to 40% of the width of the pattern block I (10), or 60%, or any value between 40% and 60%. The diameter of the heat dissipation hole I (110) is set to 5mm, or 15mm, or any length between 5mm and 15mm. The depth of the heat dissipation hole I (110) is set to 80% of the depth of the pattern block I (10), or 100%, or any value between 80% and 100%. The heat dissipation groove IV (142) can be set to a circle, a rectangle, a diamond, or other geometric shapes. When the heat dissipation groove IV (142) is set to a diamond, the length of the heat dissipation groove IV (142) is set to 25% of the length of the shoulder pattern block III (12), or 40%, or any value between 25% and 40%. The width of the heat dissipation groove IV (142) is set to 25% of the depth of the shoulder pattern block III (12), or 40%, or any value between 25% and 40%. The diameter of the heat dissipation hole II (141) is set to 5mm, or 15mm, or any length between 5mm and 15mm. The depth of the heat dissipation hole II (141) is set to 70% of the pattern depth, or 80%, or any value between 70% and 80%. The width of the heat dissipation groove VI (132) is set to 45% of the width of the shoulder pattern block III (12), or 50%, or any value between 45% and 50%. The depth of the heat dissipation groove VI (132) is set to 15mm, or 30mm, or any length between 15mm and 30mm. The heat dissipation groove VI (132) is connected to the transverse pattern groove I (60). The width of the heat dissipation groove V (131) is set to 40mm, or 60mm, or any length between 40mm and 60mm. The depth of the heat dissipation groove V (131) is set to 15mm, or 30mm, or any length between 15mm and 30mm.

[0025] The width of the groove I (61) is set to 100% of the width of the shoulder block III (12), or 110%, or any value between 100% and 110%; the height is 40% of the pattern depth, or 60%, or any value between 40% and 60%; the width of the rib II (61) is 40% of the width of the shoulder block III (12), or 60%, or any value between 40% and 60%; the depth is 40% of the depth of the shoulder block III (12), or 60%, or any value between 40% and 60%; the width of the rib I (63) is set to 50% of the width of the shoulder block II (11), or 70%, or any value between 50% and 70%; the height is 40% of the pattern depth, or 60%, or any value between 40% and 60%.

[0026] The width of the longitudinal groove I (67) is 10 mm, or 15 mm, or any length between 10 mm and 15 mm; the depth is 50% of the pattern depth, or 60%, or any value between 50% and 60%; the width of the longitudinal groove II (66) is 10 mm, or 15 mm, or any length between 10 mm and 15 mm; the depth is 50% of the pattern depth, or 60%, or any value between 50% and 60%.

[0027] The angle of any adjacent longitudinal groove is set to 120°, which can also be 150°, and can also be any value between 120° and 150°. The depth of the transverse groove I (60) is 90% of the pattern depth, which can also be 105%, and can also be any value between 90% and 105%. The width of the transverse groove I (60) is 15% of the width of the shoulder block III (12), which can also be 20%, and can also be any value between 15% and 20%. The groove wall of the transverse groove I (60) is set to be stepped, with a step width of 10 mm, which can also be 20 mm, and can also be any length between 10 mm and 20 mm, which can effectively reduce the risk of foreign object puncture of the groove bottom. The width of the transverse groove II (140) is 10 mm, which can also be 15 mm, and can also be any length between 10 mm and 15 mm. The depth of the transverse groove II (140) is 90% of the pattern depth, which can also be 100%, and can also be any value between 90% and 100%. The groove II (64) set at the bottom of the transverse groove II (140) has a width of 45% of the width of the transverse groove II (140), which can also be 60%, and can also be any value between 45% and 60%. The depth of the groove II (64) is 10 mm, which can also be 15 mm, and can also be any length between 10 mm and 15 mm. The angle between the transverse groove I (60) is set to 120°, which can also be 160°, and can also be any angle between 120° and 160°.

[0028] The features elsewhere can be fully embodied by the circumferential interval arrangement, the central symmetry arrangement of the pattern repeating unit, and the parallel arrangement of the two pattern subgroups.

[0029] The use process of the present application is as follows: when the tire is running on the complex road surface of the mine, the tread pattern design adopts the large pattern blocks of pattern block I (10), pattern block II (11), and shoulder pattern block III (12), which increases the driving performance of the tire and makes the tire have good mileage life; the middle part of the tread is provided with annular heat dissipation groove II (130), the heat generated by the tire pattern block can be effectively dissipated from the heat dissipation groove II (130), and also can be dissipated from the groove between the pattern blocks through the flow of air. In the running process of the tire, when the middle part of the tire is in contact with the ground and is pressed, the heat accumulated in the heat dissipation hole I (110) can overflow from the side transverse heat dissipation groove III (120) and be dissipated in the middle of the groove between the pattern block I (10) and the pattern block II (11) and the groove between the pattern block I (10) and the pattern block II (21). The shoulder pattern block III (12) is a parallelogram, the middle part of the tread (14) of the shoulder pattern block III is provided with a heat dissipation groove IV (142), and a heat dissipation hole II (141) is arranged at the bottom of the heat dissipation groove IV (142), in the running process of the tire, heat is generated in the tire, the heat enters the heat dissipation hole II (141), when the tire surface is pressed or vibrated, the heat dissipation groove IV (142) is a cavity and can suck the heat of the heat dissipation hole II (141) to dissipate the heat.

[0030] The above only describes the preferred embodiments of the present application, and it should be noted that those skilled in the art can make several changes and improvements without departing from the overall concept of the present application, and these should also be considered as the protection scope of the present application.

Claims

1. A tire tread pattern suitable for complex road surfaces in mines, comprising repeating tread units arranged transversely along the tire circumference, covering the tread (a) and the shoulder (b), characterized in that, Each of the pattern repeating units includes a first pattern group and a second pattern group. The first pattern group includes pattern block Ia (10), pattern block IIa (11), shoulder pattern block IIIa (12), pattern block IIb (21), and shoulder pattern block IIIb (22). The second pattern group includes pattern block Ib (20), pattern block IIc (31), shoulder pattern block IIIc (32), pattern block IId (41), and shoulder pattern block IIId (42). The first pattern group and the second pattern group are separated by a gap between pattern block Ia (10) and pattern block Ib (20). The center point (0) is centrally symmetrically set; the pattern block IIb (21) in the first pattern group and the shoulder pattern block IIIb (22) form an angle between each other and are arranged in a strip to form the first pattern subgroup in the first pattern group; the pattern block IIa (11) and the shoulder pattern block IIIa (12) form an angle between each other and are arranged in a strip to form the second pattern subgroup in the first pattern group; the first pattern subgroup and the second pattern subgroup have the same structure and are set in parallel; the pattern block Ia (10) is connected to the middle right side of the first pattern subgroup and the second pattern subgroup; grooves are set between all pattern blocks; The patterned block Ia (10) is hexagonal, and a heat dissipation hole I (110) is provided in the center of the patterned block Ia (10). A horizontal heat dissipation groove III (120) extends from the heat dissipation hole I (110) between the patterned blocks IIa (11) and IIb (21). The width of the heat dissipation groove III (120) is set to 40%-60% of the width of the patterned block Ia (10), the diameter of the heat dissipation hole I (110) is set to 5mm-15mm, and the depth is 80%-100% of the depth of the patterned block Ia (10). There is a longitudinal tread groove I (67) between the shoulder tread block IIIa (12) and the adjacent tread block IIa (11). A reinforcing rib II (61) is provided in the longitudinal tread groove I (67), and a groove I (62) is provided in the reinforcing rib II (61). The width of the longitudinal tread groove I (67) is 10mm-15mm, and the depth is 50%-60% of the tread depth. The width of the reinforcing rib II (61) is set to 100%-110% of the width of the shoulder tread block IIIa (12), and the height is 40%-60% of the tread depth. The width of the groove I (62) is 40%-60% of the width of the shoulder tread block IIIa (12), and the depth is 40%-60% of the depth of the shoulder tread block IIIa (12). A heat dissipation groove IV (142) is provided in the middle of the tread (14) of the shoulder tread block III, and a heat dissipation hole II (141) is provided at the bottom of the heat dissipation groove IV (142). The heat dissipation groove IV (142) is set in a rhombus shape. The length of the heat dissipation groove IV (142) is 25%-40% of the length of the shoulder tread block IIIa (12), and the width of the heat dissipation groove IV (142) is 25%-40% of the depth of the shoulder tread block IIIa (12). The diameter of the heat dissipation hole II (141) is set to 5mm-15mm, and the depth is 70%-80% of the tread depth. A heat dissipation groove V (131) is provided in the middle of the side (13) of the shoulder tread block III, and a heat dissipation groove VI (132) is provided in the upper right part of the tread block IV (23). The groove between the shoulder tread block IIIa (12) and the shoulder tread block IIIb (22) is a transverse tread groove I (60). The width of the heat dissipation groove VI (132) is set to 45%-50% of the width of the shoulder tread block IIIa (12), and the depth is 15mm-30mm. The depth of the transverse tread groove I (60) is 90%-105% of the tread depth, and the width is 15%-20% of the width of the shoulder tread block IIIa (12). The groove wall of the transverse tread groove I (60) is set in a stepped shape, and the step width is 10mm-20mm. The heat dissipation groove VI (132) is connected to the transverse tread groove I (60).

2. The tire tread pattern as described in claim 1, characterized in that, In the first pattern group, a longitudinal pattern groove II (66) is provided between pattern block Ia (10) and pattern block IIa (11), and a reinforcing rib I (63) is provided in the longitudinal pattern groove II (66); a longitudinal pattern groove II (66) is provided between pattern block Ia (10) and pattern block IIb (21), and a reinforcing rib I (63) is provided in the longitudinal pattern groove II (66); the shoulder pattern block IIIa (12) includes the side surface (13) of the shoulder pattern block III and the tread surface (14) of the shoulder pattern block III, and the side surface (13) of the shoulder pattern block III and the tread surface (14) of the shoulder pattern block III form a shoulder (b) angle.

3. The tire tread pattern as described in claim 2, characterized in that, Pattern block IIa (11) is a symmetrical heptagon, and shoulder pattern block IIIa (12) is a parallelogram.

4. The tire tread pattern as described in claim 2, characterized in that, The pattern repeating units are provided with grooves, wherein the groove between pattern block IIa (11) and pattern block IIb (21) is a heat dissipation groove I (65), the groove between pattern block IIa (11) and pattern block Ib (20) is a longitudinal pattern groove II (66), and a reinforcing rib I (63) is provided in the longitudinal pattern groove II (66); the groove between pattern block Ia (10) and pattern block Ib (20) is a transverse pattern groove II (140), and a groove II (64) is provided at the bottom of the transverse pattern groove II (140).

5. The tire tread pattern as described in claim 3, characterized in that, The tread is provided with an annular heat dissipation groove II (130).

6. The tire tread pattern as described in claim 5, characterized in that, The connection angle between the tread block IIa (11) and the shoulder tread block IIIa (12) is 120°-160°; the width of the heat dissipation groove II (130) is set to 15%-20% of the width of the tread block Ia (10), and the depth is 10%-15% of the depth of the tread block Ia (10); the width of the heat dissipation groove V (131) is set to 40mm-60mm, and the depth is 15mm-30mm.

7. The tire tread pattern as described in claim 2, characterized in that, The width of the reinforcing rib I (63) is set to 50%-70% of the width of the edge of the patterned block IIa (11), and the height is 40%-60% of the depth of the pattern.

8. The tire tread pattern as described in claim 2, characterized in that, The width of the longitudinal pattern groove II (66) is 10mm-15mm, and the depth is 50%-60% of the pattern depth.

9. The tire tread pattern as described in claim 4, characterized in that, The angle between any two adjacent longitudinal pattern grooves is set to 120°-150°; the width of the transverse pattern groove II (140) is 10 mm-15 mm, and the depth is 90%-100% of the pattern depth; the groove II (64) provided at the bottom of the transverse pattern groove II (140) has a width of 45%-60% of the width of the transverse pattern groove II (140) and a depth of 10 mm-15 mm; the angle between the transverse pattern grooves I (60) is set to 120°-160°.

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