Tire tread pattern suitable for long distance and high mileage and tire

Abstract

According to the tire tread pattern suitable for the long-distance and high-mileage tire and the tire provided by the utility model, due to the design of the shoulder grooves, the risk of non-uniform abrasion of the tire can be reduced, and the risk of block falling of the tire shoulder pattern ribs can be reduced during steering of the tire. The fine transverse grooves I can reduce the overall stress of the tire shoulder pattern ribs. And the tire shoulder pattern rib design can ensure the drainage property and the control stability of the product and improve the uniform abrasion and mileage performance of the tire at the same time.

Description

TECHNICAL FIELD

[0001] The utility model relates to long distance high mileage tire, especially a kind of long distance high mileage tire tread pattern and tire suitable for. BACKGROUND

[0002] North America region road surface is mainly highway, national road and city road are auxiliary, and all are long distance transport, current product can meet the transport requirement of long distance, but the handling performance and oil saving performance of product cannot better meet the requirement of customer.Therefore, it is imminent to develop a product suitable for high mileage long distance transport while ensuring that tire has good handling performance and uniform wear performance, and meets the oil saving performance requirement of customer.

[0003] Current technical means high mileage product present situation: (1) in order to improve the mileage of tire, usually increase the saturation of tire pattern, and simultaneously adjust the formula of tread to higher hardness type, but this method is usually at the expense of tire rolling resistance performance and tire comfort;(2) improve tire handling performance and traction performance increase transverse groove on tire, but this method has great negative influence on noise performance and comfort performance of tire. UTILITY MODEL CONTENT

[0004] To solve the above problems, the utility model provides a kind of long distance high mileage tire tread pattern and tire suitable for, the design of shoulder groove can reduce the risk of non-uniform wear of tire, and can reduce the risk of shoulder pattern rib block drop when tire turns.On the whole stress of shoulder pattern rib can be reduced by fine transverse groove I.Shoulder pattern rib design can increase tire uniform wear and mileage performance while ensuring product drainage and handling stability.

[0005] The technical scheme of the utility model is as follows: a kind of long distance high mileage tire tread pattern, including the pattern rib and pattern groove being arranged along the circumference of tire, pattern rib and pattern groove are arranged at intervals, pattern rib includes middle pattern rib and shoulder pattern rib, shoulder pattern rib is arranged along the circumference of tire at the place 9-12mm away from sidewall on shoulder pattern rib;The depth of shoulder groove is 5 / 9-7 / 9 of the depth of pattern groove, the width of shoulder groove is 1 / 11-1 / 9 of the width of pattern groove, the shoulder pattern rib on the side of shoulder groove far away from sidewall is provided with fine transverse groove I communicated with shoulder groove, fine transverse groove I is evenly arranged in the circumference of tire;Middle pattern rib is provided with the fold line type transverse groove that divides middle pattern rib in transverse direction, fold line type transverse groove is evenly arranged in the circumference of tire;Fold line type transverse groove is communicated with the pattern groove on both sides of middle pattern rib.

[0006] The broken line type transverse groove comprises an inclined groove I, an inclined groove II and an inclined groove III connected with the inclined groove I and the inclined groove II, one end of the inclined groove I and the inclined groove II is connected with the pattern groove respectively, the other end is connected with the end of the inclined groove III, one end of the inclined groove III is connected with one end of the inclined groove I, the other end is connected with one end of the inclined groove II, the depth of the inclined groove III is greater than the depth of the inclined groove I and the inclined groove II, and the depth of the inclined groove I and the inclined groove II is the same.

[0007] The angle a between the inclined groove I, the inclined groove II and the transverse direction of the tire is 18-22°, and the angle b between the inclined groove III and the transverse direction of the tire is 63-67°.

[0008] Along the tire circumferential direction, the pattern groove is designed as a straight line type pattern groove, the pattern ribs on both sides of the pattern groove are provided with a fine transverse groove II connected with the pattern groove, and the fine transverse groove II is uniformly arranged in the tire circumferential direction.

[0009] The depth L2 of the fine transverse groove II is 5 / 9-7 / 9 of the total depth L1 of the connected pattern groove, in the tire transverse direction, the bottom width B2 of the fine transverse groove II is 1 / 2 of the upper width B1, the bottom of the fine transverse groove II is rounded away from one end of the connected pattern groove, the rounded corner and one end of the fine transverse groove II connected with the pattern groove form an arc line, the fine transverse groove II is always connected with the connected pattern groove in the depth of the fine transverse groove II, and the size of the fine transverse groove II along the tire circumferential direction is 0.6-0.9mm.

[0010] The depth of the fine transverse groove I is 1.5-2.5mm deeper than the depth of the fine transverse groove II, the width of the fine transverse groove I is the same as that of the fine transverse groove II, the fine transverse groove I is always connected with the shoulder groove in the depth of the fine transverse groove I, and the size of the fine transverse groove I along the tire circumferential direction is 0.6-0.9mm.

[0011] The intermediate pattern rib comprises an intermediate pattern rib I and an intermediate pattern rib II, the pattern groove comprises a pattern groove I and a pattern groove II, and the pattern rib and the pattern groove of the tread pattern are sequentially arranged from the center to both sides as the intermediate pattern rib I, the pattern groove I, the intermediate pattern rib II, the pattern groove II and the shoulder pattern rib, and the pattern groove I and the pattern groove II are straight line type pattern grooves.

[0012] The pattern groove I includes a main groove, a first supporting pattern strip, a second supporting pattern strip and a sub-groove, and from the shoulder pattern rib to the adjacent middle pattern rib II, the main groove, the first supporting pattern strip, the second supporting pattern strip and the sub-groove are arranged in sequence; as shown in the transverse sectional view of the pattern groove I, the angle between the groove wall of the main groove and the normal direction of the tread at the position of the upper end of the groove wall is 8°-11°, and on the transverse sectional view, the first supporting pattern strip and the second supporting pattern strip are connected by the inclined line II which is inclined outwardly to the direction of the second supporting pattern strip, and the angle between the inclined line II and the normal direction of the tread at the position of the upper end of the inclined line II is 8°-11°; the fine transverse groove II on the two sides of the pattern groove I is connected with the pattern groove I, and one side is connected with the main groove and the other side is connected with the sub-groove.

[0013] The bottom of the pattern groove II is arc-shaped, and the groove wall is inclined, and the angles between the two side groove walls of the pattern groove II and the normal direction of the tread at the upper end of the groove wall are 19°-23° respectively.

[0014] On the transverse sectional view of the pattern groove I, the bottom of the sub-groove is arc-shaped, and the groove wall of the sub-groove is vertical structure from above the arc-shaped bottom to the tire tread;

[0015] The bottom of the main groove is designed as a full round corner, and the side wall connected with the first supporting pattern strip from the bottom to the top forms an inclined line I which is inclined outwardly, and from the first supporting pattern strip to the second supporting pattern strip, the two are connected by the inclined line II which is inclined outwardly to the direction of the second supporting pattern strip. Moreover, on the transverse sectional view, the main groove and the upper surface of the first supporting pattern strip are connected by a round corner, and the first supporting pattern strip and the inclined line II are connected by a round corner.

[0016] The depth L2 of the main groove is 14-16mm, the width of the first supporting pattern strip is 1 / 8-1 / 6 of the total width of the pattern groove I, the depth of the first supporting pattern strip is L2-L1, and L1 is 2.5-3.5mm; the width B1 of the second supporting pattern strip is 1 / 4-2 / 5 of the total width of the pattern groove I, and the depth L3 is 1 / 8-1 / 7 of the depth L2 of the main groove; the depth of the sub-groove is the same as the depth L2 of the main groove, and the width B2 is 1 / 11-1 / 9 of the width of the main groove.

[0017] The shoulder pattern rib is a closed shoulder;

[0018] The overall tire tread pattern adopts a central symmetric structure, and the left pattern of the tire tread pattern is obtained by rotating and symmetrizing the right pattern.

[0019] The broken line transverse groove of the middle pattern rib I is obtained by rotating and symmetrizing and shifting 1 / 4 pattern pitch of the broken line transverse groove of the middle pattern rib II.

[0020] A tire suitable for long-distance high mileage, the tire tread pattern of the tire is the above-mentioned tire tread pattern.

[0021] The utility model discloses a tire tread pattern and tire suitable for long distance high mileage, the design of shoulder groove can reduce the risk of tire non-uniform wear, and can reduce the risk of shoulder pattern rib block when tire turns. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the structure schematic diagram of the utility model.

[0023] Figure 2 It is the cross section schematic diagram of broken line type transverse groove.

[0024] Figure 3 It is along the transverse of tire, the cross section schematic diagram of pattern groove II and the fine transverse groove II connected with it.

[0025] Figure 4 It is the transverse cross section schematic diagram of pattern groove I.

[0026] Figure 5 It is the transverse cross section schematic diagram of shoulder groove.

[0027] Figure 6 It is along the transverse of tire, the transverse cross section schematic diagram of shoulder groove and the fine transverse groove I connected with it.

[0028] Figure 7 It is along the circumferential of tire, the cross section schematic diagram of fine transverse groove I, fine transverse groove II.

[0029] Reference signs: middle pattern rib I 1, middle pattern rib II 2, shoulder pattern rib 3, pattern groove I 4, pattern main groove 41, first support pattern strip 42, second support pattern strip 43, auxiliary groove 44, diagonal line I 45, diagonal line II 46, pattern groove II 5, shoulder groove 6, broken line type transverse groove 7, diagonal groove I 71, diagonal groove II 72, diagonal groove III 73, fine transverse groove II 8, fine transverse groove I 9. DETAILED DESCRIPTION

[0030] The technical scheme of the utility model will be described clearly and completely in combination with the drawings and specific embodiments, and it should be understood that the preferred embodiments described herein are only used for illustrating and explaining the utility model, and cannot be understood as limiting the protection scope of the utility model, and skilled persons in the art can make some non-essential improvements and adjustments according to the content of the utility model. In the utility model, unless otherwise explicitly specified and limited, the technical terms used in the application should be the general meaning understood by the technical personnel described in the utility model. The terms "connected", "connected", "fixed", "provided" and the like should be understood broadly, which can be fixed connection, or detachable connection, or integrated; it can be directly connected, or indirectly connected through an intermediate medium; it can be mechanical connection, or electrical connection. Unless otherwise explicitly limited.

[0031] As shown in Figures 1-7 A tire tread pattern suitable for long-distance high mileage, comprising pattern ribs and pattern grooves arranged along the tire circumference, the pattern ribs and the pattern grooves are arranged at intervals, the pattern ribs comprise middle pattern ribs and shoulder pattern ribs 3, shoulder grooves 6 arranged along the tire circumference are arranged at a distance of 9-12mm from the tire side on the shoulder pattern rib 3; the depth of the shoulder groove 6 is 5 / 9-7 / 9 of the depth of the pattern groove, preferably 2 / 3, the width of the shoulder groove 6 is 1 / 11-1 / 9 of the width of the pattern groove, preferably 1 / 10, and the shoulder pattern rib on the side of the shoulder groove 6 away from the tire side is provided with a fine transverse groove I 9 communicating with the shoulder groove 6, the fine transverse groove I 9 is uniformly arranged in the tire circumference; the middle pattern rib is provided with a fold line type transverse groove 7 dividing the middle pattern rib, and the fold line type transverse groove is uniformly arranged in the tire circumference; the fold line type transverse groove communicates with the pattern grooves on both sides of the middle pattern rib.

[0032] The depth and width of the pattern groove I 4 and the pattern groove II 5 are the same.

[0033] The design of the shoulder groove 6 can reduce the risk of uneven wear of the tire, and can reduce the risk of block falling of the shoulder pattern rib 3 when the tire turns. The fine transverse groove I 9 can reduce the overall stress of the shoulder pattern rib 3. The design of the shoulder pattern rib 3 can increase the uniform wear and mileage performance of the tire while ensuring the product drainage and stable control.

[0034] As shown in the transverse sectional view of the shoulder groove 6, the bottom of the shoulder groove 6 is arc-shaped, and the groove wall is vertical structure from above the arc-shaped bottom to the tire tread.

[0035] The broken line type transverse groove 7 includes an inclined groove I 71, an inclined groove II 72 communicating with the two side pattern grooves, and an inclined groove III 73 connecting the inclined groove I and the inclined groove II, one end of the inclined groove I and the inclined groove II is connected with the pattern groove respectively, the other end is connected with the end of the inclined groove III, one end of the inclined groove III is connected with one end of the inclined groove I, and the other end is connected with one end of the inclined groove II. The depth of the inclined groove III 73 is greater than the depth of the inclined groove I 71 and the inclined groove II 72, and the depth of the inclined groove I and the inclined groove II is the same. The broken line type transverse groove 7 is designed with different depths, which not only ensures the mileage of the product, but also improves the stability of the product.

[0036] The depth of the inclined groove III 73 is 3 / 8-5 / 8 of the depth of the pattern groove, preferably 1 / 2, and the depth of the inclined groove I 71 and the inclined groove II 72 is 1 / 3 of the depth of the inclined groove III 73, which can effectively reduce the transverse deformation of the steel sheet; not only can ensure the driving performance, traction performance and handling performance of the product, but also can ensure the integrity of the edge of the pattern rib, ensure the rolling resistance performance of the tire, and ensure the rigidity of the product pattern block, thereby reducing the rolling resistance of the product and the risk of biting the edge of the pattern block. For example, the depth of the inclined groove I 71 and the inclined groove II 72 is 2.5mm-3.5mm.

[0037] The angle a between the inclined groove I 71, the inclined groove II 72 and the transverse direction of the tire is 18-22°, preferably 20°, and the angle b between the inclined groove III 73 and the transverse direction of the tire is 63-67°, preferably 65°. While ensuring the driving performance and handling performance of the tire, the water drainage performance and low rolling resistance performance of the tire can be considered.

[0038] Along the tire circumferential direction, the pattern groove is designed as a straight line type pattern groove, and the pattern ribs on both sides of the pattern groove are provided with fine transverse grooves II 8 communicating with the pattern groove. The fine transverse grooves II 8 are evenly arranged in the tire circumferential direction, and the maximum depth L2 of the fine transverse grooves II 8 is 5 / 9-7 / 9 of the total depth L1 of the connected pattern groove; in the tire transverse direction, as shown in Figure 3 The bottom width B2 of the fine transverse groove II 8 is 1 / 2 of the upper width B1, then the end of the bottom of the fine transverse groove II 8 away from the connected pattern groove is rounded, and the rounded corner and the end of the fine transverse groove II 8 connected with the pattern groove form a circular arc C1, and the fine transverse groove II 8 is always connected with the connected pattern groove in the depth of the fine transverse groove II 8; the size of the fine transverse groove II 8 along the tire circumferential direction is 0.6-0.9mm, preferably 0.8mm. In this way, the tire mileage is increased while the uniform wear performance of the tire is ensured.

[0039] The structure of the fine transverse groove I 9 is the same as that of the fine transverse groove II 8, and in the tire transverse direction, as shown in Figure 6 The end of the bottom of the fine transverse groove I 9 away from the connected shoulder groove 6 is rounded, and the rounded corner and the end of the fine transverse groove I 9 connected with the shoulder groove 6 form a circular arc C2, and the fine transverse groove I 9 is always connected with the shoulder groove 6 in the depth of the fine transverse groove I 9;

[0040] The difference is that the maximum depth L2 of the fine transverse groove I 9 is 1.5-2.5mm, preferably 2mm, deeper than the maximum depth L2 of the fine transverse groove II 8. The width of the fine transverse groove I 9 is the same as that of the fine transverse groove II 8, and the size of the fine transverse groove I 9 in the tire circumferential direction is 0.6-0.9mm, preferably 0.8mm.

[0041] As shown in the cross-sectional view of the fine transverse groove I and the fine transverse groove II along the tire circumferential direction, the two side groove walls of the fine transverse groove I and the fine transverse groove II are vertical structures, and the groove bottom is a circular arc bottom. Figure 7 Figure 7 In the formula, C represents a circular arc.

[0042] The intermediate pattern ribs include intermediate pattern rib I 1 and intermediate pattern rib II 2, and the pattern grooves include pattern groove I and pattern groove II 5; the tread pattern includes pattern ribs and pattern grooves, and from the center to both sides, they are in turn intermediate pattern rib I 1, pattern groove I 4, intermediate pattern rib II 2, pattern groove II 5, and shoulder pattern rib 3; the pattern groove I 4 and the pattern groove II 5 are straight-line pattern grooves.

[0043] The bottom of the pattern groove II 5 is arc-shaped, and the groove wall is inclined. The angle between the two side groove walls of the pattern groove II 5 and the tire tread normal direction at the upper end of the groove wall is 19°-23°, preferably 21°.

[0044] The pattern groove I 4 includes pattern main groove 41, first support pattern strip 42, second support pattern strip 43, and sub-groove 44, and from the shoulder pattern rib 3 to the adjacent intermediate pattern rib II 2, they are in turn pattern main groove 41, first support pattern strip 42, second support pattern strip 43, and sub-groove 44; as shown in the transverse cross-sectional view of the pattern groove I 4, the angle between the groove wall of the pattern main groove 41 and the tire tread normal direction at the upper end of the groove wall is 8°-11°, and on the transverse cross-sectional view, from the first support pattern strip 42 to the second support pattern strip 43, it is connected by an inclined line II 46 inclined outward to the direction of the second support pattern strip 43, and the angle between the inclined line II 46 and the tire tread normal direction at the upper end of the inclined line II 46 is 8°-11°.

[0045] The design of the pattern groove I 4 increases the stone-removing capacity of the pattern groove while preventing the pattern groove bottom from cracking, and in addition, the design of the second support pattern strip effectively improves the pattern's resistance to eccentric wear, thereby improving the driving mileage of the pattern.

[0046] On the transverse cross-sectional view of the pattern groove I 4, the bottom of the sub-groove 44 is arc-shaped, and the groove wall of the sub-groove 44 is a vertical structure from above the arc-shaped bottom to the tire tread. This can reduce the heat generation of the pattern rib 2, thereby reducing the rolling resistance of the whole tire.

[0047] ​In the lateral section view of the pattern groove 14, in order to avoid the pattern main groove cracking, the bottom of the pattern main groove 41 is designed with full round corners, the side wall of the pattern main groove 41 bottom corner / arc connected with the first support pattern bar 42 forms an outwardly inclined line 145 from bottom to top, and the line 146 inclined outwardly from the first support pattern bar 42 to the second support pattern bar 43 is connected. Moreover, in the lateral section view, the pattern main groove 41 and the upper surface of the first support pattern bar 42 are connected by a round corner, and the first support pattern bar 42 and the line 146 are connected by a round corner.

[0048] The depth L2 of the pattern main groove 41 is 14-16 mm, the width of the first support pattern bar 42 is 1 / 8-1 / 6, preferably 1 / 7, of the total width of the pattern groove 14, and the depth of the first support pattern bar 42 is L2-L1, L1 is 2.5-3.5 mm; the width B1 of the second support pattern bar 43 is 1 / 4-2 / 5, preferably 1 / 3, of the total width of the pattern groove 14, and the depth L3 is 1 / 8-1 / 7 of the depth L2 of the pattern main groove 41; the depth of the sub-groove 44 is the same as the depth L2 of the pattern main groove 41, and the width B2 is 1 / 11-1 / 9, preferably 1 / 10, of the width of the pattern main groove 41.

[0049] The depth and width of the pattern groove 14 and the pattern groove 15 are the same, which means that the depth and width of the pattern main groove 41 are the same as the depth and width of the pattern groove 15, and the depth and width of the pattern groove in this application refer to the depth and width of the pattern main groove 41 or the depth and width of the pattern groove 15.

[0050] The first support pattern bar 42 enhances the stone-ejection performance of the product while ensuring the drainage and driving performance of the product. The second support pattern bar connects the pattern main groove 41 and the sub-groove 44, enhances the overall rigidity of the middle pattern rib 12, reduces deformation, and thus reduces the rolling resistance of the tire.

[0051] Since the pattern groove 14 is provided with the pattern main groove 41 and the sub-groove 44 at both ends of the side portion, the fine transverse groove 18 on both sides of the pattern groove 14 communicates with the pattern groove 14, one side of which communicates with the pattern main groove 41 and the other side of which communicates with the sub-groove 44. The fine transverse groove 18 is arranged on both sides of the pattern groove 14 and mainly plays a role in stress relief.

[0052] The shoulder pattern rib 3 is a closed shoulder. The closed shoulder can enhance the uniform wear performance of the tire.

[0053] The overall tire tread pattern adopts a central symmetrical structure, and the left side pattern of the tire tread pattern is obtained by rotating the right side pattern, which ensures the beauty of the tire pattern.

[0054] The broken line type transverse groove 7 of the middle pattern rib 11 is obtained by rotating and offsetting the broken line type transverse groove 7 on the middle pattern rib 12 by about 1 / 4 of the pattern pitch.

[0055] The zigzag transverse groove is evenly arranged in the tire circumferential direction, and the zigzag transverse groove 7 is evenly arranged on the middle pattern rib where the zigzag transverse groove 7 is arranged, and the middle pattern rib can be cut into 79 equal parts by the zigzag transverse groove 7.

[0056] The tread pattern saturation provided by the application is close to 78%. The advantage of this pattern saturation is that the high mileage requirement of the tire is met to a large extent, and the high-saturation pattern design reduces the deformation of the tire pattern block and improves the overall rigidity of the tire pattern block, thereby reducing the rolling resistance of the tire.

[0057] The tire tread pattern and tire suitable for long-distance high mileage provided by the utility model adopt an integral pattern design concept, on the basis of the overall straight groove design, the circumferential fine groove is arranged on the pattern rib to increase the tire driving mileage while ensuring the uniform wear performance of the tire; the pattern rib adopts a continuous shoulder design, and the shoulder groove is added near the side of the pattern rib, thereby reducing the risk of non-uniform wear of the tire; the zigzag transverse groove 7 is added on the middle pattern rib, and the zigzag transverse groove adopts a design idea of different depths, so as to meet the tire handling performance and traction performance, and the integrality of the edge of the pattern rib can ensure the rolling resistance performance of the tire.

[0058] The tire tread pattern and tire suitable for long-distance high mileage provided by the utility model comprehensively consider the use road conditions and environmental characteristics in North America, and uniformly design the overall tread pattern, and the straight groove design is matched with a large number of small steel sheets and through steel sheets, so that the tire can meet the requirements of stable handling, uniform wear and high mileage, and the rolling resistance of the tire can be reduced to meet the oil-saving performance requirements of customers.

[0059] The utility model discloses a kind of tire tread patterns suitable for long-distance high mileage, which can not only meet the needs of high-speed driving, but also ensure that the tire can be evenly worn. It can be used not only in different road shapes such as plains, hills and mountains, but also in high-speed, national road and urban road conditions. It meets the requirements of tire standard load and slight 120% overload.

[0060] The above merely describes preferred embodiments of the present application, and is not intended to limit the present application. The technical features of the above-described embodiments can be combined in any manner, and the present application is not limited to the above-described embodiments. When the combination of technical solutions is contradictory or unachievable, it is considered that the combination of technical solutions does not exist, and is not within the scope of the present application. It should be noted that, without departing from the overall concept and principle of the present application, the technical solutions and concepts of the present application can be replaced or changed by those skilled in the art, and some changes and improvements can be made. These should also be considered within the scope of the present application.

Claims

1. A tread pattern suitable for long-distance and high-mileage tires, characterized by: The tire comprises pattern ribs and pattern grooves arranged along the circumference of the tire, the pattern ribs and pattern grooves are arranged at intervals, the pattern ribs comprise middle pattern ribs and shoulder pattern ribs (3), a shoulder groove (6) arranged along the circumference of the tire is arranged on the shoulder pattern rib (3) at a distance of 9-12 mm from the sidewall; the depth of the shoulder groove (6) is 5 / 9-7 / 9 of the pattern groove depth, and the width of the shoulder groove (6) is 1 / 11-1 / 9 of the pattern groove width; a fine transverse groove I (9) communicating with the shoulder groove (6) is provided on the shoulder pattern rib on the side away from the sidewall, and the fine transverse groove I (9) is uniformly arranged in the circumference of the tire; a broken line transverse groove (7) is provided on the middle pattern rib for transversely dividing the middle pattern rib, and the broken line transverse groove is uniformly arranged in the circumference of the tire; the broken line transverse groove is connected to the pattern grooves on both sides of the middle pattern rib.

2. The tread pattern of a tire suitable for long-distance and high-mileage driving according to claim 1, characterized in that: The broken line transverse groove (7) includes an oblique groove I (71) and an oblique groove II (72) connected to the pattern grooves on both sides, and an oblique groove III (73) connecting the oblique groove I and the oblique groove II. One end of the oblique groove I and the oblique groove II are respectively connected to the pattern groove, and the other end is connected to the end of the oblique groove III. One end of the oblique groove III is connected to one end of the oblique groove I, and the other end is connected to one end of the oblique groove II. The depth of the oblique groove III (73) is greater than the depth of the oblique groove I (71) and the oblique groove II (72), and the depths of the oblique groove I and the oblique groove II are the same.

3. The tread pattern of a tire suitable for long-distance and high-mileage travel according to claim 2, characterized in that: The angle a between the inclined groove I (71) and the inclined groove II (72) and the transverse direction of the tire is 18-22 degrees, and the angle b between the inclined groove III (73) and the transverse direction of the tire is 63-67 degrees; Along the circumference of the tire, the pattern groove is designed as a straight pattern groove, and the pattern ribs on both sides of the pattern groove are provided with fine transverse grooves II (8) connected to the pattern groove, and the fine transverse grooves II (8) are evenly arranged in the circumference of the tire.

4. The tread pattern of a tire suitable for long-distance and high-mileage travel according to claim 3, characterized in that: The depth L2 of the fine transverse groove II (8) is 5 / 9-7 / 9 of the total depth L1 of the connected groove; in the transverse direction of the tire, the bottom width B2 of the fine transverse groove II 8 is 1 / 2 of the upper width B1, and the bottom of the fine transverse groove II (8) is rounded at one end away from the connected groove, and this rounded corner forms an arc line with the end of the fine transverse groove II (8) connected to the groove. In the depth of the fine transverse groove II (8), the fine transverse groove II (8) is always connected to the connected groove; the size of the fine transverse groove II (8) along the circumferential direction of the tire is 0.6-0.9 mm.

5. The tread pattern of a tire suitable for long-distance and high-mileage travel according to claim 4, characterized in that: The depth of the fine transverse groove I (9) is 1.5-2.5 mm deeper than the depth of the fine transverse groove II (8), and the width of the fine transverse groove I (9) is the same as that of the fine transverse groove II (8). At the depth of the fine transverse groove I (9), the fine transverse groove I (9) is always connected to the shoulder groove (6); the size of the fine transverse groove I (9) along the circumference of the tire is 0.6-0.9 mm.

6. The tread pattern of a tire suitable for long-distance and high-mileage driving according to claim 1, characterized in that: The intermediate pattern ribs include intermediate pattern ribs I (1) and intermediate pattern ribs II (2), and the pattern grooves include pattern grooves I and pattern grooves II (5); the pattern ribs and pattern grooves of the tread pattern are, from the center to the sides, intermediate pattern ribs I (1), pattern grooves I (4), intermediate pattern ribs II (2), pattern grooves II (5), and shoulder pattern ribs (3); pattern grooves I and pattern grooves II (5) are straight pattern grooves.

7. The tread pattern of a tire suitable for long-distance and high-mileage travel according to claim 6, characterized in that: The pattern groove I (4) includes a pattern main groove (41), a first supporting pattern strip (42), a second supporting pattern strip (43), and an auxiliary groove (44), which are arranged from the shoulder pattern rib (3) to the adjacent middle pattern rib II (2) in the order of the pattern main groove (41), the first supporting pattern strip (42), the second supporting pattern strip (43), and the auxiliary groove (44); as shown in the transverse cross-sectional view of the pattern groove I (4), the distance between the groove wall of the pattern main groove (41) and the position of the upper end of the groove wall in the tread normal direction is The angle is 8°-11°. In the transverse section, the first supporting rib (42) and the second supporting rib (43) are connected by an oblique line II (46) inclined outwardly in the direction of the second supporting rib (43). The angle between the oblique line II (46) and the tread normal direction at the position where the upper end of the oblique line II (46) is located is 8°-11°. The fine transverse groove II (8) on both sides of the groove I (4) is connected to the groove I (4), one side of which is connected to the main groove (41) and the other side of which is connected to the auxiliary groove (44). The bottom of the groove II (5) is arc-shaped, the groove wall is an inclined surface, and the angles between the groove walls on both sides of the groove II (5) and the tread normal of the upper end of the groove wall are 19°-23° respectively.

8. The tread pattern of a tire suitable for long-distance and high-mileage travel according to claim 7, characterized in that: In the transverse cross-sectional view of the pattern groove I (4), the bottom of the auxiliary groove (44) is arc-shaped, and the groove wall of the auxiliary groove (44) is a vertical structure from the top of the arc-shaped bottom to the tire tread; The bottom of the pattern main groove (41) is designed with a full rounded corner. The rounded corner / arc at the bottom of the pattern main groove (41) and the side wall connected to the first supporting pattern strip (42) form an outwardly inclined oblique line I (45) from bottom to top, and from the first supporting pattern strip (42) to the second supporting pattern strip (43), it is connected by an oblique line II (46) inclined outward in the direction of the second supporting pattern strip (43); and in the transverse cross-sectional view, the pattern main groove (41) and the upper surface of the first supporting pattern strip (42) are connected by a rounded corner, and the first supporting pattern strip (42) and the oblique line II (46) are connected by a rounded corner.

9. The tread pattern of a tire suitable for long-distance and high-mileage travel according to claim 7, characterized in that: The depth L2 of the pattern main groove (41) is 14-16 mm, the width of the first supporting rib (42) is 1 / 8-1 / 6 of the total width of the pattern groove I (4), the depth of the first supporting rib (42) is L2-L1, L1 is 2.5-3.5 mm; the width B1 of the second supporting rib (43) is 1 / 4-2 / 5 of the total width of the pattern groove I (4), and the depth L3 is 1 / 8-1 / 7 of the depth L2 of the pattern main groove (41); the depth of the auxiliary groove (44) is the same as the depth L2 of the pattern main groove (41), and the width B2 is 1 / 11-1 / 9 of the width of the pattern main groove (41); The shoulder tread ribs (3) are closed shoulders; The tire tread pattern adopts a central symmetrical structure. The left side of the tread pattern is rotated symmetrically to obtain the right side pattern. The broken line transverse groove (7) of the middle pattern rib I (1) is obtained by rotating the broken line transverse groove (7) on the middle pattern rib II (2) in a symmetrical manner and offsetting it by 1 / 4 of the pattern pitch.

10. A tire suitable for long-distance and high-mileage driving, characterized by: The tread pattern of the tire is the tread pattern described in any one of claims 1 to 9.

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