Tire tread structure and tire with same

Abstract

The utility model provides a tire tread structure and a tire with the same. The tire tread structure comprises a plurality of pattern parts arranged at intervals in the width direction of a tire, and the pattern parts comprise two tire shoulder pattern parts and a middle pattern part located between the two tire shoulder pattern parts; protrusions are arranged on the side faces, facing each other, of the tire shoulder pattern part and the middle pattern part, and first concave parts are arranged at the protruding ends of the protrusions; the number of the protrusions located on the tire shoulder pattern part and the number of the protrusions located on the middle pattern part are both multiple, the multiple protrusions are distributed in the circumferential direction of the tire, and a first longitudinal groove is defined by the multiple protrusions located on the tire shoulder pattern part and the multiple protrusions located on the middle pattern part. The tire tread structure effectively solves the problem that the service life of the tire tread structure in the prior art is short.

Description

Technical Field

[0001] The utility model relates to the technical field of tires, and in particular, to a tire tread structure and a tire having the same. Background Art

[0002] At present, in the trailer wheel market, metric tubeless tires (trailer tires) are widely welcomed due to their high safety, convenient maintenance and other advantages. Compared with car tires, metric tubeless tires (trailer tires) pay more attention to the requirement of service life.

[0003] In the prior art, the reasons affecting the service life of tires usually include two aspects. On the one hand, it is the self-performance of tire rubber; on the other hand, it is the tread pattern structure of the tire. And the tire tread structure is the core reason affecting the service life of the finished tire, which has a direct impact on the wear resistance, stone trapping prevention and other performances that affect the service life of the tire.

[0004] However, with the continuous improvement of vehicle carrying capacity, road conditions diversification and user requirements, the service life of metric tubeless tires (trailer tires) in the prior art has gradually been unable to meet the market requirements. Summary of the Utility Model

[0005] The main purpose of the present utility model is to provide a tire tread structure and a tire having the same, so as to solve the problem of short service life of the tire tread structure in the prior art.

[0006] To achieve the above object, according to one aspect of the present utility model, there is provided a tire tread structure, including: a plurality of pattern portions spaced apart along the width direction of the tire, the plurality of pattern portions including two shoulder pattern portions and an intermediate pattern portion located between the two shoulder pattern portions; protrusions are provided on the side surfaces of the shoulder pattern portions and the intermediate pattern portion facing each other, and a first concave portion is provided on the protruding end of the protrusion; wherein, the protrusions on the shoulder pattern portions and the intermediate pattern portion are both multiple, the multiple protrusions are distributed along the circumferential direction of the tire, and a first longitudinal groove is formed around between the multiple protrusions on the shoulder pattern portions and the multiple protrusions on the intermediate pattern portion.

[0007] Further, on any one of the shoulder pattern portions and the intermediate pattern portion, a second concave portion is formed between two adjacent protrusions, and the protrusions on the shoulder pattern portion are correspondingly arranged with the second concave portions on the intermediate pattern portion.

[0008] Furthermore, there are multiple intermediate tread pattern parts. A second longitudinal groove is formed around between two adjacent intermediate tread pattern parts, and the second longitudinal groove is a straight groove; and / or, the surface of the protrusion facing the first longitudinal groove has a first inclined surface and a second inclined surface arranged oppositely. A first included angle A1 is formed between the first inclined surface and the second inclined surface, and the first included angle A1 satisfies: 150° ≤ A1 ≤ 160°. The first concave part is located between the first inclined surface and the second inclined surface. The inner wall of the first concave part has a third inclined surface and a fourth inclined surface arranged oppositely. A second included angle A2 is formed between the third inclined surface and the fourth inclined surface, and the second included angle A2 satisfies: 150° ≤ A2 ≤ 160°.

[0009] Furthermore, there are multiple intermediate tread pattern parts. The multiple intermediate tread pattern parts include a central tread pattern part. At least part of the central tread pattern part coincides with the central plane S of the tire. The tire tread structure further includes: a zigzag longitudinal groove provided on the central tread pattern part and arranged along the circumferential direction of the tire. A third included angle A3 is formed between two adjacent sub-grooves of the zigzag longitudinal groove, and the third included angle A3 satisfies: 130° ≤ A3 ≤ 150°. The width W1 of the zigzag longitudinal groove satisfies: 1 mm ≤ W1 ≤ 3 mm.

[0010] Furthermore, the multiple intermediate tread pattern parts further include a crown tread pattern part located between the central tread pattern part and the shoulder tread pattern part. The crown tread pattern part is adjacent to the shoulder tread pattern part. The tire tread structure further includes: a connecting groove provided on the crown tread pattern part. The connecting groove is used to connect the first longitudinal groove and the second longitudinal groove, and one end of the connecting groove extends to the inner wall of the first concave part.

[0011] Furthermore, the connecting groove includes a first sub-connecting groove, a second sub-connecting groove, a third sub-connecting groove and an arc transition groove that are connected to each other. The second sub-connecting groove is located between the first sub-connecting groove and the third sub-connecting groove; wherein, an arc transition groove is provided between the first sub-connecting groove and the second sub-connecting groove; and / or, an arc transition groove is provided between the second sub-connecting groove and the third sub-connecting groove.

[0012] Furthermore, the tire tread structure further includes: a third concave part provided at the bottom of the connecting groove. The depth H of the third concave part satisfies: 9 mm ≤ H ≤ 12 mm; there is a first preset distance L1 between one end of the third concave part close to the central tread pattern part and the side surface of the crown tread pattern part close to the central tread pattern part, and there is a second preset distance L2 between the other end of the third concave part far from the central tread pattern part and the side surface of the crown tread pattern part far from the central tread pattern part. The first preset distance L1 and the second preset distance L2 satisfy: L1 ≥ 8 mm, L2 ≥ 8 mm.

[0013] Further, the tire tread structure further includes: a fourth recess provided on the tread portion, one end of the fourth recess extending to the side surface of the tread portion, and a plurality of fourth recesses being provided on each tread portion, the plurality of fourth recesses being spaced apart along the circumferential direction of the tire, and the length L3 of each fourth recess satisfying: 3 mm ≤ L3 ≤ 8 mm; wherein, the fourth recess on the shoulder tread portion extends to the inner wall of the first recess; among the plurality of fourth recesses on the crown tread portion, at least one fourth recess extends to the inner wall of the first recess, and at least another fourth recess extends to the side surface of the crown tread portion close to the center tread portion; at least two of the fourth recesses on the center tread portion extend to the two side surfaces of the center tread portion respectively, and the fourth recesses on the center tread portion are correspondingly arranged with the ends of the communication grooves close to the center tread portion.

[0014] Further, in the shoulder tread portion, the shoulder tread portion between at least two adjacent fourth recesses forms shoulder tread blocks, and there are a plurality of shoulder tread blocks; in the center tread portion, the center tread portion between at least two adjacent fourth recesses forms center tread blocks, and there are a plurality of center tread blocks; a plurality of communication grooves divide the crown tread portion into a plurality of crown tread blocks; wherein, the plurality of center tread blocks are arranged in one-to-one correspondence with the plurality of shoulder tread blocks, the plurality of center tread blocks are arranged in one-to-one correspondence with the plurality of crown tread blocks, and a tread pattern group is formed between a center tread block and the corresponding shoulder tread block and crown tread block, there are a plurality of tread pattern groups, and the length P1 of the first tread pattern group, the length P2 of the second tread pattern group, and the length P3 of the third tread pattern group among the plurality of tread pattern groups satisfy: 1.05P2 ≤ P1 ≤ 1.1P2, 1.05P3 ≤ P2 ≤ 1.1P3.

[0015] According to another aspect of the present invention, a tire is provided, and the tire includes the above-mentioned tire tread structure.

[0016] Applying the technical solution of the present utility model, the tire tread structure includes a plurality of tread portions spaced along the width direction of the tire. The plurality of tread portions include two shoulder tread portions and an intermediate tread portion located between the two shoulder tread portions. Protrusions are provided on the side surfaces of the shoulder tread portion and the intermediate tread portion facing each other, and a first concave portion is provided on the protruding end of the protrusion. Among them, there are a plurality of protrusions on both the shoulder tread portion and the intermediate tread portion, and the plurality of protrusions are distributed circumferentially along the tire. A first longitudinal groove is formed around between the plurality of protrusions on the shoulder tread portion and the plurality of protrusions on the intermediate tread portion. In this way, the overall shape of the first longitudinal groove formed by the plurality of protrusions on the shoulder tread portion and the plurality of protrusions on the intermediate tread portion is irregular. While ensuring that the tire has high drainage performance, it can reduce the probability of the first longitudinal groove being clogged with stones, avoid the tire being damaged due to stones piercing the bottom of the groove, and extend the service life of the tire. At the same time, the first concave portion provided on the protruding end of the protrusion can reduce the protruding amount of the protruding end of the protrusion, increase the rigidity of the protrusion, reduce the "chunk dropping" phenomenon caused by the protrusion cutting with foreign objects during the rolling of the tire, further extend the service life of the tire, and thus solve the problem of the short service life of the tire tread structure in the prior art, and reduce the maintenance cost of the vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings forming a part of this application are used to provide a further understanding of the present utility model. The schematic embodiments and descriptions thereof of the present utility model are used to explain the present utility model and do not constitute an improper limitation of the present utility model. In the drawings:

[0018] Figure 1 A partial front view showing an embodiment of the tire tread structure according to the present utility model is shown;

[0019] Figure 2 It shows Figure 1 A partially enlarged schematic view of the tire tread structure in

[0020] Among them, the above-mentioned accompanying drawings include the following reference numerals:

[0021] 10. Shoulder tread portion; 11. Shoulder tread block;

[0022] 20. Intermediate tread portion; 21. Center tread portion; 211. Center tread block; 22. Crown tread portion; 221. Crown tread block;

[0023] 30. Protrusion; 31. First concave portion; 311. Third inclined surface; 312. Fourth inclined surface; 32. First inclined surface; 33. Second inclined surface; 34. Second concave portion;

[0024] 40. First longitudinal groove;

[0025] 50. Second longitudinal groove;

[0026] 60. Zigzag longitudinal groove;

[0027] 70. Connecting groove; 71. First sub - connecting groove; 72. Second sub - connecting groove; 73. Third sub - connecting groove; 74. Arc - shaped transition groove;

[0028] 80. Third concave part;

[0029] 90. Fourth concave part. Detailed implementation mode

[0030] It should be noted that, without conflict, the embodiments and features in the embodiments of this application can be combined with each other. The following will describe the present utility model in detail with reference to the drawings and in combination with the embodiments.

[0031] It should be pointed out that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by those of ordinary skill in the technical field to which this application belongs.

[0032] In the present utility model, unless otherwise stated, the orientation terms such as "upper, lower" are usually in the direction shown in the drawings, or in the vertical, perpendicular or gravitational direction; similarly, for the sake of easy understanding and description, "left, right" are usually in the left - right direction shown in the drawings; "inner, outer" refer to the inner and outer of the contour of each component itself, but the above orientation terms do not limit the present utility model.

[0033] In order to solve the problem that the service life of the tire tread structure in the prior art is relatively short, this application provides a tire tread structure.

[0034] As Figure 1 and Figure 2 shown, the tire tread structure includes a plurality of tread portions arranged at intervals in the tire width direction. The plurality of tread portions include two shoulder tread portions 10 and an intermediate tread portion 20 located between the two shoulder tread portions 10. Protrusions 30 are provided on the side surfaces of the shoulder tread portions 10 and the intermediate tread portion 20 facing each other, and a first concave portion 31 is provided on the protruding end of the protrusion 30. Among them, there are a plurality of protrusions 30 on both the shoulder tread portion 10 and the intermediate tread portion 20. The plurality of protrusions 30 are distributed along the circumferential direction of the tire, and a first longitudinal groove 40 is formed around between the plurality of protrusions 30 on the shoulder tread portion 10 and the plurality of protrusions 30 on the intermediate tread portion 20.

[0035] By applying the technical solution of this embodiment, the tire tread structure includes a plurality of pattern portions arranged at intervals along the tire width direction, the plurality of pattern portions include two shoulder pattern portions 10 and a middle pattern portion 20 located between the two shoulder pattern portions 10, the shoulder pattern portions 10 and the middle pattern portion 20 are both provided with protrusions 30 on the sides facing each other, and the protruding ends of the protrusions 30 are provided with first recesses 31. There are multiple protrusions on the shoulder pattern portions 10 and the middle pattern portions 20, the multiple protrusions 30 are distributed along the circumference of the tire, and the first longitudinal grooves 40 are formed around the multiple protrusions 30 on the shoulder pattern portions 10 and the multiple protrusions 30 on the middle pattern portions 20. In this way, the first longitudinal groove 40 formed by the plurality of protrusions 30 arranged on the shoulder pattern portion 10 and the plurality of protrusions 30 arranged on the middle pattern portion 20 has an irregular overall shape, which can reduce the probability of stones being clamped in the first longitudinal groove 40 while ensuring that the tire has a high drainage performance, and prevent stones from piercing the bottom of the groove and causing damage to the tire, thereby extending the service life of the tire. At the same time, the first recess 31 arranged on the protruding end of the protrusion 30 can reduce the protrusion amount of the protruding end of the protrusion 30, increase the rigidity of the protrusion 30, reduce the "block drop" phenomenon caused by the protrusion 30 cutting with foreign objects during the rolling process of the tire, further extend the service life of the tire, and thus solve the problem of short service life of the tire tread structure in the prior art, and reduce the maintenance cost of the vehicle.

[0036] In this embodiment, the protrusions 30 and the shoulder pattern portion 10 and the middle pattern portion 20 are an integrally formed structure, that is, during the molding process of the tire, a specific mold is used to form multiple protrusions 30 on the surfaces of the shoulder pattern portion 10 and the middle pattern portion 20 facing each other.

[0037] like Figure 1 As shown, on any one of the shoulder pattern portion 10 and the middle pattern portion 20, a second recess 34 is formed between two adjacent protrusions 30, and the protrusion 30 on the shoulder pattern portion 10 is arranged correspondingly to the second recess 34 on the middle pattern portion 20. In this way, the above arrangement actually makes the first longitudinal groove 40 present a reciprocating zigzag structure as a whole, and a first recess 31 of a removed type is arranged at the protruding part of the zigzag (the protruding end of the protrusion 30), which can further ensure that the first longitudinal groove 40 has good drainage performance and stone-preventing ability while improving the overall aesthetics of the tire tread structure.

[0038] In this embodiment, the protrusion 30 is a triangular prism-shaped structure as a whole, and the sharp corner (protruding end) thereof extending into the first longitudinal groove 40 is removed to form a triangular prism-shaped first recess 31 .

[0039] Optionally, there are multiple intermediate tread portions 20. A second longitudinal groove 50 is formed around between two adjacent intermediate tread portions 20, and the second longitudinal groove 50 is a linear groove; and / or, the surface of the protrusion 30 facing the first longitudinal groove 40 has a first inclined surface 32 and a second inclined surface 33 which are oppositely arranged. A first included angle A1 is formed between the first inclined surface 32 and the second inclined surface 33, and the first included angle A1 satisfies: 150° ≤ A1 ≤ 160°. The first concave portion 31 is located between the first inclined surface 32 and the second inclined surface 33. The inner wall of the first concave portion 31 has a third inclined surface 311 and a fourth inclined surface 312 which are oppositely arranged. A second included angle A2 is formed between the third inclined surface 311 and the fourth inclined surface 312, and the second included angle A2 satisfies: 150° ≤ A2 ≤ 160°. In this way, the linear second longitudinal groove 50 has higher drainage performance compared with the first longitudinal groove 40, so as to further improve the drainage ability of the tire tread structure and ensure that the tire has high wet handling performance and driving safety. At the same time, the above settings of the first inclined surface 32, the second inclined surface 33, the third inclined surface 311 and the fourth inclined surface 312 can further improve the stone trapping prevention ability of the first longitudinal groove 40 and avoid the shear-off and damage of the protrusion 30.

[0040] Optionally, there are multiple intermediate tread portions 20. The multiple intermediate tread portions 20 include a central tread portion 21. At least part of the central tread portion 21 coincides with the central plane S of the tire. The tire tread structure further includes a zigzag longitudinal groove 60 which is arranged on the central tread portion 21 and along the circumferential direction of the tire. A third included angle A3 is formed between two adjacent sub-grooves of the zigzag longitudinal groove 60, and the third included angle A3 satisfies: 130° ≤ A3 ≤ 150°. The width W1 of the zigzag longitudinal groove 60 satisfies: 1 mm ≤ W1 ≤ 3 mm. In this way, the above settings of the zigzag longitudinal groove 60 can further improve the drainage ability of the tire tread structure, avoid forming a complete water film between the tire and the driving surface, so as to further increase the grip of the tire on the wet road surface and improve the wet handling performance of the tire, and its width setting can improve its stone trapping prevention ability and extend the service life of the tire.

[0041] Specifically, the width design of the zigzag longitudinal groove 60 actually makes the zigzag longitudinal groove 60 a narrow groove to ensure that stones cannot enter the zigzag longitudinal groove 60.

[0042] In this embodiment, there are three intermediate tread portions 20.

[0043] It should be noted that the number of the intermediate tread portions 20 is not limited to this and can be adjusted according to working conditions and usage requirements. Optionally, the intermediate tread portion 20 is two, or four, or five, or six, or seven, or multiple.

[0044] Optionally, the plurality of intermediate tread portions 20 further includes a crown tread portion 22 located between the central tread portion 21 and the shoulder tread portion 10. The crown tread portion 22 is adjacent to the shoulder tread portion 10. The tire tread structure further includes a connecting groove 70 provided on the crown tread portion 22. The connecting groove 70 is used to connect the first longitudinal groove 40 and the second longitudinal groove 50, and one end of the connecting groove extends to the inner wall of the first recess 31. In this way, the connecting groove 70 can achieve the connection between the first longitudinal groove 40 and the second longitudinal groove 50, so as to further increase the discharge speed of the water liquid, and thus improve the drainage capacity of the tire.

[0045] Optionally, the connecting groove 70 includes a first sub-connecting groove 71, a second sub-connecting groove 72, a third sub-connecting groove 73 and an arc transition groove 74 that are connected to each other. The second sub-connecting groove 72 is located between the first sub-connecting groove 71 and the third sub-connecting groove 73. Among them, an arc transition groove 74 is provided between the first sub-connecting groove 71 and the second sub-connecting groove 72; and / or, an arc transition groove 74 is provided between the second sub-connecting groove 72 and the third sub-connecting groove 73. In this way, the above setting of the arc transition groove 74 can effectively avoid the stress concentration problem generated when foreign objects come into contact with the tire tread structure, and thus avoid the damage of the tire tread caused by shearing off blocks. This not only further extends the service life of the tire, but also improves the overall aesthetics of the tire tread structure.

[0046] In this embodiment, an arc transition groove 74 is provided between the first sub-connecting groove 71 and the second sub-connecting groove 72, and an arc transition groove 74 is provided between the second sub-connecting groove 72 and the third sub-connecting groove 73.

[0047] In this embodiment, the connecting groove 70 actually also adopts the design of a narrow groove, that is, the width W2 of the connecting groove 70 satisfies: 1mm ≤ W2 ≤ 3mm, so as to improve its stone trapping resistance.

[0048] Optionally, the tire tread structure further includes a third recess 80 disposed at the bottom of the connecting groove 70. The depth H of the third recess 80 satisfies: 9 mm ≤ H ≤ 12 mm. There is a first preset distance L1 between one end of the third recess 80 close to the central tread portion 21 and the side surface of the crown tread portion 22 close to the central tread portion 21, and a second preset distance L2 between the other end of the third recess 80 far from the central tread portion 21 and the side surface of the crown tread portion 22 far from the central tread portion 21. The first preset distance L1 and the second preset distance L2 satisfy: L1 ≥ 8 mm, L2 ≥ 8 mm. In this way, the third recess 80 can improve the surface grip performance of the tire in the middle and later stages of use (after the tire tread structure has undergone a certain amount of wear), and further extend the service life of the tire. At the same time, the above settings of the depth and width of the third recess 80 can ensure that the crown tread portion 22 has sufficient rigidity.

[0049] Specifically, if the depth and width of the third recess 80 are too large, it will affect the overall rigidity of the crown tread portion 22, and thus have an adverse impact on the handling performance and service life of the tire tread structure.

[0050] Optionally, the tire tread structure further includes a fourth recess 90 disposed on the tread portion. One end of the fourth recess 90 extends to the side surface of the tread portion. There are multiple fourth recesses 90 on each tread portion, and the multiple fourth recesses 90 are arranged at intervals along the circumferential direction of the tire. The length L3 of each fourth recess 90 satisfies: 3 mm ≤ L3 ≤ 8 mm. Among them, the fourth recess 90 located on the shoulder tread portion 10 extends to the inner wall of the first recess 31; among the multiple fourth recesses 90 located on the crown tread portion 22, at least one fourth recess 90 extends to the inner wall of the first recess 31, and at least another fourth recess 90 extends to the side surface of the crown tread portion 22 close to the central tread portion 21; at least two of the fourth recesses 90 located on the central tread portion 21 extend to the two side surfaces of the central tread portion 21 respectively, and the fourth recesses 90 located on the central tread portion 21 are correspondingly arranged with the end portions of the connecting groove 70 close to the central tread portion 21. In this way, the above settings of the fourth recess 90 can, on the one hand, ensure that the tread portion has relatively high rigidity (length setting) to reduce the buffering bounce during tire driving and improve the riding comfort of the passengers; on the other hand, when the tire rolls on a wet ground, a water film that can reduce the friction coefficient will be formed between the tire tread structure and the running surface. By cutting the water film through the fourth recess 90, the formation of a complete water film can be effectively avoided, thereby improving the handling performance of the tire on a wet road surface and avoiding the occurrence of slipping.

[0051] Optionally, in the shoulder tread portion 10, the shoulder tread portion 10 between at least two adjacent fourth recesses 90 forms shoulder tread blocks 11, and there are multiple shoulder tread blocks 11. In the central tread portion 21, the central tread portion 21 between at least two adjacent fourth recesses 90 forms central tread blocks 211, and there are multiple central tread blocks 211. Multiple connecting grooves 70 divide the crown tread portion 22 into multiple crown tread blocks 221. Among them, multiple central tread blocks 211 are arranged in one-to-one correspondence with multiple shoulder tread blocks 11, multiple central tread blocks 211 are arranged in one-to-one correspondence with multiple crown tread blocks 221, and a tread pattern group is formed between a central tread block 211 and the corresponding shoulder tread block 11 and crown tread block 221 arranged therewith. There are multiple tread pattern groups. The lengths P1 of the first tread pattern group, P2 of the second tread pattern group, and P3 of the third tread pattern group among the multiple tread pattern groups satisfy: 1.05P2 ≤ P1 ≤ 1.1P2, 1.05P3 ≤ P2 ≤ 1.1P3. In this way, the tire tread structure with three pitch settings makes the overall tread pattern structure more intricate, helps to avoid the occurrence of noise resonance phenomenon, thereby reducing the driving noise of the tire and improving the riding comfort of the passengers and drivers.

[0052] This application also provides a tire, and the tire includes the above-mentioned tire tread structure.

[0053] From the above description, it can be seen that the above embodiments of the present utility model achieve the following technical effects:

[0054] The tire tread structure includes multiple tread portions arranged at intervals in the tire width direction. The multiple tread portions include two shoulder tread portions and an intermediate tread portion located between the two shoulder tread portions. Protrusions are provided on the side surfaces of the shoulder tread portion and the intermediate tread portion facing each other, and a first recess is provided on the protruding end of the protrusion. Among them, there are multiple protrusions on both the shoulder tread portion and the intermediate tread portion, and the multiple protrusions are distributed along the circumferential direction of the tire. A first longitudinal groove is formed by surrounding between the multiple protrusions on the shoulder tread portion and the multiple protrusions on the intermediate tread portion. In this way, the overall shape of the first longitudinal groove formed by surrounding the multiple protrusions on the shoulder tread portion and the multiple protrusions on the intermediate tread portion is irregular. While ensuring that the tire has high drainage performance, it can reduce the probability of stone jamming in the first longitudinal groove, avoid the tire being damaged due to stones piercing the bottom of the groove, and extend the service life of the tire. At the same time, the first recess provided on the protruding end of the protrusion can reduce the protruding amount of the protruding end of the protrusion, increase the rigidity of the protrusion, reduce the "chunk shedding" phenomenon caused by the protrusion cutting foreign objects during the rolling of the tire, further extend the service life of the tire, and thus solve the problem of the short service life of the tire tread structure in the prior art and reduce the vehicle maintenance cost.

[0055] Obviously, the embodiments described above are only a part of the embodiments of the present utility model, rather than all embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0056] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprising" and / or "including" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0057] It should be noted that the terms "first", "second", etc. in the description, claims and drawings of the present application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0058] The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. For those skilled in the art, the present utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A tire tread structure, characterized in that: include: A plurality of pattern portions arranged at intervals along the tire width direction, wherein the plurality of pattern portions include two shoulder pattern portions (10) and a middle pattern portion (20) located between the two shoulder pattern portions (10); The shoulder pattern portion (10) and the middle pattern portion (20) are both provided with protrusions (30) on their sides facing each other, and a first recess (31) is provided on the protruding end of the protrusion (30); There are multiple protrusions (30) on the shoulder pattern portion (10) and the middle pattern portion (20), and the multiple protrusions (30) are distributed along the circumference of the tire. A first longitudinal groove (40) is formed between the multiple protrusions (30) on the shoulder pattern portion (10) and the multiple protrusions (30) on the middle pattern portion (20).

2. The tire tread structure according to claim 1, characterized in that: On any one of the shoulder pattern portion (10) and the middle pattern portion (20), a second recess (34) is formed between two adjacent protrusions (30), and the protrusion (30) on the shoulder pattern portion (10) and the second recess (34) on the middle pattern portion (20) are arranged correspondingly.

3. The tire tread structure according to claim 1, characterized in that: There are a plurality of intermediate pattern portions (20), and a second longitudinal groove (50) is formed between two adjacent intermediate pattern portions (20), wherein the second longitudinal groove (50) is a linear groove; and / or, The surface of the protrusion (30) facing the first longitudinal groove (40) comprises a first inclined surface (32) and a second inclined surface (33) which are arranged opposite to each other, the first inclined surface (32) and the second inclined surface (33) are arranged at a first angle A1, and the first angle A1 satisfies: 150°≤A1≤160°; the first recess (31) is located between the first inclined surface (32) and the second inclined surface (33); the inner wall of the first recess (31) comprises a third inclined surface (311) and a fourth inclined surface (312) which are arranged opposite to each other, the third inclined surface (311) and the fourth inclined surface (312) are arranged at a second angle A2, and the second angle A2 satisfies: 150°≤A2≤160°.

4. The tire tread structure according to claim 3, characterized in that: The intermediate tread portions (20) are multiple, the multiple intermediate tread portions (20) include a central tread portion (21), at least a portion of the central tread portion (21) coincides with a center plane S of the tire, and the tire tread structure further includes: A zigzag longitudinal groove (60) is provided on the central tread portion (21) and arranged along the circumference of the tire, wherein two adjacent sub-grooves of the zigzag longitudinal groove (60) are arranged at a third angle A3, wherein the third angle A3 satisfies: 130°≤A3≤150°, and a width W1 of the zigzag longitudinal groove (60) satisfies: 1mm≤W1≤3mm.

5. The tire tread structure according to claim 4, characterized in that: The plurality of intermediate pattern portions (20) further include a crown pattern portion (22) located between the central pattern portion (21) and the shoulder pattern portion (10), wherein the crown pattern portion (22) is adjacent to the shoulder pattern portion (10), and the tire tread structure further includes: A connecting groove (70) is provided on the crown pattern portion (22), and the connecting groove (70) is used to connect the first longitudinal groove (40) and the second longitudinal groove (50), and one end of the connecting groove extends to the inner wall of the first recess (31).

6. The tire tread structure according to claim 5, characterized in that: The connecting groove (70) comprises a first sub-connecting groove (71), a second sub-connecting groove (72), a third sub-connecting groove (73) and an arc-shaped transition groove (74) which are interconnected, and the second sub-connecting groove (72) is located between the first sub-connecting groove (71) and the third sub-connecting groove (73); Wherein, an arc-shaped transition groove (74) is provided between the first sub-connecting groove (71) and the second sub-connecting groove (72); and / or, an arc-shaped transition groove (74) is provided between the second sub-connecting groove (72) and the third sub-connecting groove (73).

7. The tire tread structure according to claim 5, characterized in that: The tire tread structure further comprises: The third recess (80) is arranged at the bottom of the connecting groove (70), and the depth of the third recess (80) is H meets: 9mm≤H≤12mm; A first preset distance L1 is provided between an end of the third recess (80) close to the central tread portion (21) and a side surface of the crown tread portion (22) close to the central tread portion (21), and a second preset distance L2 is provided between an end of the third recess (80) away from the central tread portion (21) and a side surface of the crown tread portion (22) away from the central tread portion (21), and the first preset distance L1 and the second preset distance L2 satisfy the following conditions: L1≥8mm, L2≥8mm.

8. The tire tread structure according to claim 5, characterized in that: The tire tread structure further comprises: A fourth recess (90) is arranged on the tread portion, one end of the fourth recess (90) extends to the side surface of the tread portion, and there are a plurality of fourth recesses (90) on each tread portion. The plurality of fourth recesses (90) are arranged at intervals along the circumferential direction of the tire, and a length L3 of each fourth recess (90) satisfies: 3 mm ≤ L3 ≤ 8 mm; Wherein, the fourth recess (90) located on the shoulder pattern portion (10) extends to the inner wall of the first recess (31); among the multiple fourth recesses (90) located on the crown pattern portion (22), at least one fourth recess (90) extends to the inner wall of the first recess (31), and at least another fourth recess (90) extends to the side surface of the crown pattern portion (22) close to the center pattern portion (21); at least two of the fourth recesses (90) located on the center pattern portion (21) extend to two side surfaces of the center pattern portion (21) respectively, and the fourth recess (90) located on the center pattern portion (21) is arranged corresponding to the end of the connecting groove (70) close to the center pattern portion (21).

9. The tire tread structure according to claim 8, characterized in that: In the shoulder pattern portion (10), the shoulder pattern portion (10) between at least two adjacent fourth recesses (90) forms a shoulder pattern block (11), and the shoulder pattern block (11) is multiple; In the central tread portion (21), the central tread portion (21) between at least two adjacent fourth recesses (90) forms a central tread block (211), and the central tread block (211) is multiple; The plurality of connecting grooves (70) divide the tread crown pattern portion (22) into a plurality of tread crown pattern blocks (221); The plurality of center pattern blocks (211) are arranged in one-to-one correspondence with the plurality of shoulder pattern blocks (11), and the plurality of center pattern blocks (211) are arranged in one-to-one correspondence with the plurality of crown pattern blocks (221). A pattern group is formed between the center pattern block (211) and the shoulder pattern blocks (11) and the crown pattern blocks (221) arranged corresponding thereto. There are a plurality of pattern groups, and the length P1 of the first pattern group, the length P2 of the second pattern group, and the length P3 of the third pattern group among the plurality of pattern groups satisfy the following conditions: 1.05P2≤P1≤1.1P2, 1.05P3≤P2≤1.1P3.

10. A tire, characterized in that: The tire comprises the tire tread structure according to any one of claims 1 to 9.

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