Off-road tire

Abstract

The invention relates to the technical field of automobile tires, and discloses an off-road tire which comprises a tire body, a plurality of center pattern blocks are fixedly arranged on the tread of the tire body, shoulder pattern blocks are arranged on the two sides of the center pattern blocks, a plurality of first decoration blocks are arranged on one side of the tire body, and a plurality of second decoration blocks are arranged on the other side of the tire body. And a plurality of second decorative blocks are arranged on the other side of the tire body. The criss-cross through grooves are formed through the pattern grooves, the road holding force and the drainage capacity of the tire in mud are enhanced, the blocky pattern blocks are alternately arranged, the road holding force of the tire in the mud is increased, meanwhile, the pattern blocks of the tread are divided into a plurality of blocks by the grooves with different angles in cooperation with the staggered blocky and sawtooth-shaped patterns, and the tire is more comfortable to wear. The central pattern blocks and the shoulder pattern blocks can be rigidly and uniformly distributed, so that the situation that the tire cracks or collapses due to local heat generation caused by large rigidity difference is avoided, and the off-road performance of the tire is improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of automobile tires, in particular to an off-road tire. BACKGROUND

[0002] When a vehicle is running on an off-road road surface, such as a desert, sand, muddy road surface and the like, in order to ensure the traction performance of the off-road tire, the existing off-road tire usually adopts a design of increasing the number and volume ratio of the groove in the tread structure, so as to increase the inclusion of mud and sand by the tire and improve the traction performance. Meanwhile, when running on the off-road road surface, people will choose to adopt the method of reducing the tire pressure to improve the ability of the tire to sink into the mud and sand, and further improve the traction performance of the tire. In addition, the protection design part of the shoulder of the tire is used to reduce the tire side cutting, so as to improve the off-road performance and reduce the risk of tire burst.

[0003] However, the traditional off-road tire adopts the method of increasing the number and volume of the pattern groove, which reduces the overall proportion of the pattern block, reduces the strength of the single pattern block, and reduces the rigidity in the circumferential direction of the tire. At this time, the method of reducing the tire pressure is used to improve the traction performance of the tire, which is easy to further weaken the rigidity in the circumferential direction of the tire. The reduction of the rigidity of the tire increases the hysteresis of the tire response, reduces the handling performance of the tire, and increases the bending deformation of the tire under pressure, so that the shear stress borne by the pattern block is increased, and the heat generation of the tire is increased, which is easy to cause the pattern block to be torn or the pattern block to be damaged. In addition, the durability of the pattern block of the tire is reduced. SUMMARY

[0004] The application provides an off-road tire, which has the advantages of improving the adaptability of the tire on the off-road road surface and ensuring the rigidity of the tire, so as to solve the problem that the overall proportion of the pattern block of the traditional off-road tire reduces the rigidity in the circumferential direction of the tire.

[0005] In order to achieve the above-mentioned purpose, the application adopts the following technical scheme: an off-road tire, comprising a tire body, a plurality of center pattern blocks are fixedly arranged on the tread of the tire body, shoulder pattern blocks are arranged on both sides of the center pattern blocks, a plurality of first decorative blocks are arranged on one side of the tire body, a plurality of second decorative blocks are arranged on the other side of the tire body, and a plurality of pattern grooves are arranged on the tread of the tire body.

[0006] A plurality of pattern ribs are fixedly arranged on the bottom of the pattern groove, a plurality of self-cleaning devices are fixedly arranged on the bottom of the pattern groove, a plurality of reinforcing sheets are fixedly arranged on the tread of the tire body, and the pattern ribs and the reinforcing sheets cooperate to limit the deformation range of the center pattern blocks and the shoulder pattern blocks.

[0007] Further, the center blocks include a first block, a second block, and a third block, the first and second blocks being arranged alternately in the circumferential direction of the tire body, and the number of the third blocks being adapted to the sum of the numbers of the first and second blocks.

[0008] Further, the shoulder blocks include a first shoulder block and a second shoulder block, the first and second shoulder blocks being arranged alternately in the circumferential direction of the tire body.

[0009] Further, the numbers of the first and second decorative blocks are adapted to the number of the center blocks, the first decorative block including a first side decorative block and a second side decorative block, and the second decorative block including a third side decorative block and a fourth side decorative block, the first and second side decorative blocks being arranged alternately in the circumferential direction of the tire body, and the third and fourth side decorative blocks being arranged alternately in the circumferential direction of the tire body.

[0010] Further, the sipe grooves include a first sipe groove, a second sipe groove, a third sipe groove, a fourth sipe groove, a fifth sipe groove, and a sixth sipe groove, the first and second sipe grooves being arranged alternately in the circumferential direction, the third sipe groove extending in a zigzag trajectory in the circumferential direction and communicating with the first and second sipe grooves, and the fourth, fifth, and sixth sipe grooves all communicating with the first sipe groove.

[0011] Further, the sipe grooves include a first sipe groove, a second sipe groove, a third sipe groove, a fourth sipe groove, a fifth sipe groove, and a sixth sipe groove, the first and second sipe grooves being arranged alternately in the circumferential direction, the third sipe groove extending in a zigzag trajectory in the circumferential direction and communicating with the first and second sipe grooves, and the fourth, fifth, and sixth sipe grooves all communicating with the first sipe groove.

[0012] Further, the sipe grooves include a first sipe groove, a second sipe groove, a third sipe groove, a fourth sipe groove, a fifth sipe groove, and a sixth sipe groove, the first and second sipe grooves being arranged alternately in the circumferential direction, the third sipe groove extending in a zigzag trajectory in the circumferential direction and communicating with the first and second sipe grooves, and the fourth, fifth, and sixth sipe grooves all communicating with the first sipe groove.

[0013] Further, the sipe grooves include a first sipe groove, a second sipe groove, a third sipe groove, a fourth sipe groove, a fifth sipe groove, and a sixth sipe groove, the first and second sipe grooves being arranged alternately in the circumferential direction, the third sipe groove extending in a zigzag trajectory in the circumferential direction and communicating with the first and second sipe grooves, and the fourth, fifth, and sixth sipe grooves all communicating with the first sipe groove.

[0014] Further, the supporting mechanism comprises a hub fixedly connected with the tire body, a plurality of partition sheets fixedly connected with the inner side of the tire body, the hub is fixedly sleeved with a fixed sleeve ring, a plurality of air holes are arranged on the arc surface of the hub, a plurality of partition plates are fixedly arranged on the inner side of the fixed sleeve ring, an outer separation sleeve is fixedly connected with the inner side of the fixed sleeve ring, an inner separation sleeve is fixedly connected with the inner side of the fixed sleeve ring, and a plurality of connecting holes are arranged on the side planes of the inner separation sleeve and the outer separation sleeve.

[0015] Further, the plurality of partition sheets divide the cavity of the tire body into a plurality of cavities that are not communicated with each other, the partition plates divide the corresponding cavity of the fixed sleeve ring into a plurality of cavities that are not communicated with each other, the corresponding connecting holes of the inner separation sleeve and the corresponding connecting holes of the outer separation sleeve are alternately arranged, and the inner side of the fixed sleeve ring is fixedly connected with two air valves.

[0016] The present application has the following advantages: The cross-country tire provided by the present application has the following advantages: the pattern of the cross-country tire is combined with staggered blocks and serrations, the pattern blocks are divided into multiple blocks by the pattern grooves with different angles, the rigidity of the pattern blocks is uniformly distributed, the large rigidity difference is avoided, local heat generation is avoided, and the cross-country tire is prevented from being cracked or broken, the size of the block pattern is large and the block pattern is reasonably distributed, strong adhesion can be provided on soft sandy land, muddy land and other road surfaces, the serration pattern is distributed between the block patterns, the adhesion and drainage performance of the cross-country tire on the harsh road surface are enhanced, the mud capacity is greatly improved, and the pattern blockage is reduced.

[0017] The cross-country tire provided by the present application has the following advantages: the pattern of the cross-country tire is combined with staggered blocks and serrations, the pattern of the cross-country tire is combined with staggered blocks and serrations, the pattern blocks are divided into multiple blocks by the pattern grooves with different angles, the rigidity of the pattern blocks is uniformly distributed, the large rigidity difference is avoided, local heat generation is avoided, and the cross-country tire is prevented from being cracked or broken, the size of the block pattern is large and the block pattern is reasonably distributed, strong adhesion can be provided on soft sandy land, muddy land and other road surfaces, the serration pattern is distributed between the block patterns, the adhesion and drainage performance of the cross-country tire on the harsh road surface are enhanced, the mud capacity is greatly improved, and the pattern blockage is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings in the following description are only embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the provided drawings: Figure 1 It is a schematic diagram of the overall structure of the present application; Figure 2 It is a schematic diagram of the cross-country tire tread structure of the present application; Figure 3 This is a schematic diagram of the tire tread groove structure of this application; Figure 4 This is a schematic diagram of the self-cleaning device structure of this application; Figure 5 This is a schematic cross-sectional view of the supporting structure of this application; Figure 6 This is a schematic cross-sectional view of the internal spacer structure in this application.

[0019] In the diagram: 1. Central pattern block; 11. Pattern block No. 1; 12. Pattern block No. 2; 13. Pattern block No. 3; 2. Shoulder pattern block; 21. Shoulder pattern block No. 1; 22. Shoulder pattern block No. 2; 3. Decorative block No. 1; 31. Side decorative block No. 1; 32. Side decorative block No. 2; 4. Decorative block No. 2; 41. Side decorative block No. 3; 42. Side decorative block No. 4; 5. Pattern groove; 51. Pattern groove No. 1; 52. Pattern groove No. 2; 53. Pattern groove No. 3; 54. Pattern groove No. 4; 55. Pattern groove No. 5; 56. Pattern groove No. 6; 6. Pattern rib; 61. Pattern rib No. 1; 62. Pattern rib No. 2; 63. Pattern rib No. 3 7. Reinforcing strip; 71. Steel sheet No. 1; 72. Steel sheet No. 2; 73. Steel sheet No. 3; 74. Steel sheet No. 4; 75. Steel sheet No. 5; 76. Steel sheet No. 6; 77. Steel sheet No. 7; 8. Self-cleaning device; 81. Cleaning rib No. 1; 82. Cleaning rib No. 2; 83. Cleaning rib No. 3; 84. Cleaning rib No. 4; 85. Cleaning rib No. 5; 86. Cleaning rib No. 6; 9. Support mechanism; 91. Wheel hub; 92. Fixing collar; 93. Divider plate; 94. Air valve; 95. Inner spacer sleeve; 96. Outer spacer sleeve; 97. Vent hole; 98. Connecting hole; 99. Divider plate; 10. Tire body. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1, as Figures 1-4An off-road tire includes a tire body 10. The tire body 10 has a plurality of central tread blocks 1 fixedly arranged on its tread. Each central tread block 1 includes a first tread block 11, a second tread block 12, and a third tread block 13. The first tread block 11 is rectangular and obliquely arranged in the circumferential direction of the tire body 10. The second tread block 12 is Z-shaped. The first and second tread blocks 11 and 12 are alternately arranged in the circumferential direction of the tire body 10. The central tread blocks 1 are located in the central area of ​​the tire tread. Shoulder tread blocks 2 are arranged on both sides of the central tread blocks 1, with the number of shoulder tread blocks 2 matching the number of central tread blocks 1. The shoulder tread blocks 2 are located on both sides of the tire body 10 tread and include a first shoulder tread block 21 and a second shoulder tread block 22. The length of block 22 in the circumferential direction of the tire body 10 is adapted to the corresponding length of the side of the third pattern block 13. That is, the first shoulder pattern block 21 and the second shoulder pattern block 22 are located on one side of the corresponding third pattern block 13. The number of third pattern blocks 13 is adapted to the sum of the number of first pattern blocks 11 and second pattern blocks 12. The two third pattern blocks 13 are located on both sides of the corresponding second pattern block 12. Several first shoulder pattern blocks 21 and second shoulder pattern blocks 22 are arranged alternately in the circumferential direction of the tire body 10. The shape of the center pattern block 1 is adapted to the shape of the corresponding shoulder pattern block 2. That is, the distance between the center pattern block 1 and the corresponding shoulder pattern block 2 is within the rated range. By forming a contact surface with the ground along the circumferential direction of the tire with pattern blocks of different shapes, the rigidity of the tread in all directions is improved, and the force on the tread is more uniform.

[0022] One side of the tire body 10 is provided with several first decorative blocks 3, and the other side of the tire body 10 is provided with several second decorative blocks 4. The number of first decorative blocks 3 and second decorative blocks 4 are adapted to the number of central tread blocks 1. The first decorative block 3 includes a first side trim block 31 and a second side trim block 32, and the second decorative block 4 includes a third side trim block 41 and a fourth side trim block 42. The first side trim blocks 31 and the second side trim blocks 32 are arranged alternately in the circumferential direction of the tire body 10 tread, and the third side trim blocks 41 and the fourth side trim blocks 42 are arranged alternately in the circumferential direction of the tire body 10 tread. 42 are arranged alternately in the circumferential direction of the tire body 10. The first sidewall trim block 31, the second sidewall trim block 32, the third sidewall trim block 41 and the fourth sidewall trim block 42 are respectively connected to the corresponding shoulder tread block 2. The shoulder tread block 2 and the corresponding first decorative block 3 and second decorative block 4 form a three-dimensional contact part for contact with the ground. When the tire is used in off-road conditions, the three-dimensional decoration of the tire sidewall can contact the ground, which can prevent the tire sidewall from being damaged by scratches, while promoting the rapid discharge of mud and sand and improving the appearance of the tire.

[0023] On the tread of the tire body 10, a number of tread grooves 5 are provided. The tread grooves 5 include a first tread groove 51, a second tread groove 52, a third tread groove 53, a fourth tread groove 54, a fifth tread groove 55, and a sixth tread groove 56. The first tread groove 51 and the second tread groove 52 are located between adjacent first shoulder tread blocks 21 and second shoulder tread blocks 22 and are arranged alternately in the circumferential direction. The third tread groove 53 is located between the third tread block 13 and the corresponding first shoulder tread block 21 and second shoulder tread block 22. The third tread groove 53 extends in a zigzag trajectory in the circumferential direction and is connected to the first tread groove 51 and the second tread groove 52. The fourth tread groove 54 is located between the third tread block 13 and the corresponding second tread block 12. The fifth tread groove 55 is located between the first tread block 11 and the second tread block 12. The sixth tread groove 56 is located between the first tread block 11 and the corresponding third tread block 13. The fourth tread groove 54, the fifth tread groove 55, and the sixth tread groove 56 are all connected to the first tread groove 51. The fourth tread groove 54, the fifth tread groove 55, and the sixth tread groove 56 are all arranged obliquely in the circumferential direction.

[0024] Among the number of tread grooves, a criss-crossed through groove is formed, further enhancing the tire's grip and drainage ability in mud.配合块状的花纹块交替布置,增加轮胎处于泥浆中时的抓地力,同时配合交错块状与锯齿状相结合的花纹,胎面被不同角度的沟将花纹块分割成多块,使中心花纹块1和肩部花纹块2能够呈刚性均匀分布,避免刚性差异大引起局部生热,导致轮胎出现裂口或崩块,在此基础上,使得中心花纹块1和肩部花纹块2能够以更大尺寸均匀分布,使该轮胎能够在松软沙地、泥泞等路面提供强大的抓地力,而形成的锯齿状花纹沟,能够增强轮胎在恶劣路面的抓地力和排水性能,提高泥浆容纳量,减少花纹堵塞,提高该轮胎的越野性能。With the alternating arrangement of block-shaped tread blocks, the grip of the tire in mud is increased. At the same time, with the combination of staggered blocks and serrated patterns, the tread is divided into multiple blocks by grooves at different angles, enabling the central tread block 1 and the shoulder tread block 2 to be rigidly and evenly distributed, avoiding local heat generation caused by large rigidity differences, resulting in tire cracks or chunks breaking off. On this basis, the central tread block 1 and the shoulder tread block 2 can be evenly distributed in a larger size, enabling the tire to provide strong grip on soft sand, muddy and other road surfaces. The formed serrated tread grooves can enhance the tire's grip and drainage performance on rough road surfaces, increase the mud capacity, reduce tread blockage, and improve the off-road performance of the tire.

[0025] A number of tread ribs 6 are fixedly arranged at the bottom of the tread groove Figure 3 5. The tread ribs 6 include a first tread rib 61, a second tread rib 62, and a third tread rib 63. The first tread rib 61 and the second tread rib 62 are both arranged in the corresponding fourth tread groove 54 and are located at both ends of the fourth tread groove. The fifth tread groove 55 corresponds to two third tread ribs 63. The two third tread ribs 63 are arranged at both ends of the fifth tread groove 55. Refer to Figure 3 The cross-sectional shape of the tread rib 6 is in the shape of a "convex", refer to Figure 3The thickness a of the tread rib 6 is between 0.5 and 3.5 mm, and the thickness b of the tread rib 6 is between 1 and 5 mm. Through the cooperation of several tread ribs 6, the rigidity of the central tread block 1 and the shoulder tread block 2 is enhanced without affecting the connectivity of the tread groove 5, reducing the amount of tread creep under load, reducing deformation and energy loss when touching the ground, and indirectly improving wear resistance, grip and handling stability.

[0026] Several self-cleaning devices 8 are fixedly installed at the bottom of the groove 5. The self-cleaning devices 8 include cleaning rib 1 81, cleaning rib 2 82, cleaning rib 3 83, cleaning rib 4 84, cleaning rib 5 85, and cleaning rib 6 86. (See reference...) Figure 2 Cleaning ribs 81 (No. 1), 83 (No. 3), and 86 (No. 6) are all fixedly installed within groove 51 (No. 1). Cleaning ribs 82 (No. 2) are all fixedly installed at the bottom of groove 52 (No. 2). Cleaning rib 84 (No. 4) is fixedly installed at the bottom of groove 56 (No. 6). Cleaning rib 85 (No. 5) is fixedly installed at the bottom of groove 53 (No. 3). (See attached text.) Figure 4 The thickness c of the self-cleaning device 8 is between 0.5 and 3.5 mm, and the thickness d of the self-cleaning device 8 is between 1 and 5 mm. Several self-cleaning devices 8 work together to prevent particulate matter from adhering to the tread groove 5, further reducing the risk of blockage and cracking of the tread groove 5, improving drainage, mud removal, and stone removal performance, while protecting the bottom of the tread groove 5 from cuts and punctures, dispersing local stress, avoiding stress concentration, and improving the durability of the tire.

[0027] Several reinforcing plates 7 are fixedly installed on the tread of the tire body 10. The reinforcing plates 7 include steel plate 71, steel plate 72, steel plate 73, steel plate 74, steel plate 75, steel plate 76, and steel plate 77. Steel plate 71 and steel plate 72 are fixedly installed on tread block 11. Steel plate 73, steel plate 74, and steel plate 75 are fixedly installed on tread block 13. Steel plate 76 and steel plate 77 are fixedly installed on shoulder tread block 21 and shoulder tread block 22, respectively. The tread ribs 6 and the reinforcing plates 7 work together to further enhance the rigidity of the center tread block 1 and the shoulder tread block 2, ensuring the tire's grip and handling stability.

[0028] Example 2, as Figure 1 Figure 5 and Figure 6Based on Embodiment 1, a support mechanism 9 is also included. The support mechanism 9 includes a hub 91, which is fixedly connected to the tire body 10. A closed cavity is formed between the arc surfaces of the tire body 10 and the hub 91. A plurality of partition plates 93 are fixedly connected to the inner side of the tire body 10. The partition plates 93 divide the cavity of the tire body 10 into a plurality of non-communicating cavities. The partition plates 93 are arranged in a ring at uniform intervals. The partition plates 93 are rubber partitions. The relative deformation amplitude of the expansion deformation under air pressure is less than the deformation amplitude of the corresponding part of the tire body 10. The separator 93 is fixedly connected to the hub 91. A fixing collar 92 is fixedly sleeved on the inner side of the hub 91. The fixing collar 92 and the hub 91 form a closed cavity. Several vent holes 97 are opened on the arc surface of the hub 91. The position and number of vent holes 97 are adapted to the position and number of several cavities of the tire body 10. Several separator plates 99 are fixedly installed on the inner side of the fixing collar 92.

[0029] The position and number of the partition plates 99 are matched with the position and number of the partition pieces 93. The partition plates 99 divide the cavity corresponding to the fixing collar 92 into several non-communicating cavities. The vent holes 97 connect the cavity of the corresponding tire body 10 with the cavity of the fixing collar 92. An outer spacer 96 is fixedly connected to the inner side of the fixing collar 92, and an inner spacer 95 is fixedly connected to the inner side of the fixing collar 92. Both the inner spacer 95 and the outer spacer 96 are set as annular sleeves. The side planes of the inner spacer 95 and the outer spacer 96 are provided with connecting holes 98 for connection. The number of holes 98 is set to several. The connecting holes 98 corresponding to the inner spacer 95 and the connecting holes 98 corresponding to the outer spacer 96 are arranged alternately. The connecting holes 98 connect the inner spacer 95 or the outer spacer 96 to the cavity corresponding to the fixed collar 92, so that the adjacent cavities in the fixed collar 92 are not connected to each other, while the cavities separated by a cavity distance are connected through the inner spacer 95 or the outer spacer 96. Two air nozzles 94 are fixedly connected to the inner side of the fixed collar 92. The two air nozzles 94 are used to adjust the air pressure in two adjacent cavities in the fixed collar 92 respectively.

[0030] The working principle of this embodiment is as follows: When the tire is used in off-road conditions, the air pressure inside the tire body 10 is reduced by releasing air through the two valves 94. At this time, the deformation range of the tire body 10 increases, and the bottom of the tire body 10 contacts the ground and is compressed. The air in the corresponding inner cavity enters the inner side of the fixing collar 92 through the vent hole 97, and enters other connected cavities of the tire body 10 through the inner spacer 95 or the outer spacer 96, causing the corresponding part of the tread to expand. The tread cavity that is not connected to the compressed cavity maintains a stable air pressure, so that a small undulating surface is formed at the corresponding partition 93 between the treads. This causes the distance between the self-cleaning device 8 and the tread groove 5 at the corresponding location to change. When the tire rolls, the compressed cavity changes alternately, causing the tread at the self-cleaning device 8 to generate a shearing action, further improving the drainage and mud removal performance of the self-cleaning device 8 and improving the off-road performance of the tire.

[0031] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An off-road tire, comprising a tire body (10), characterized in that, The tire body (10) has a number of central tread blocks (1) fixedly arranged on the tread surface. Shoulder tread blocks (2) are arranged on both sides of the central tread blocks (1). A number of first decorative blocks (3) are arranged on one side of the tire body (10). A number of second decorative blocks (4) are arranged on the other side of the tire body (10). A number of tread grooves (5) are opened on the tread surface of the tire body (10). The bottom of the tread groove (5) is fixedly provided with several tread ribs (6), and the bottom of the tread groove (5) is fixedly provided with several self-cleaning devices (8). The tire body (10) is fixedly provided with several reinforcing plates (7). The tread ribs (6) and the reinforcing plates (7) cooperate to limit the deformation range of the center tread block (1) and the shoulder tread block (2).

2. The off-road tire according to claim 1, characterized in that, The central tread block (1) includes a first tread block (11), a second tread block (12), and a third tread block (13). The first tread block (11) and the second tread block (12) are arranged alternately in the circumferential direction of the tire body (10). The number of the third tread block (13) is matched with the sum of the number of the first tread block (11) and the second tread block (12).

3. An off-road tire according to claim 2, characterized in that, The number of shoulder pattern blocks (2) is set to several, and the shoulder pattern blocks (2) include a first shoulder pattern block (21) and a second shoulder pattern block (22). Several first shoulder pattern blocks (21) and second shoulder pattern blocks (22) are arranged alternately in the circumferential direction of the tire body (10).

4. An off-road tire according to claim 3, characterized in that, The number of the first decorative block (3) and the second decorative block (4) are matched with the number of the center pattern block (1). The first decorative block (3) includes the first side trim block (31) and the second side trim block (32). The second decorative block (4) includes the third side trim block (41) and the fourth side trim block (42). The first side trim block (31) and the second side trim block (32) are arranged alternately in the circumferential direction of the tire body (10). The third side trim block (41) and the fourth side trim block (42) are arranged alternately in the circumferential direction of the tire body (10).

5. An off-road tire according to claim 3, characterized in that, The patterned groove (5) includes a first patterned groove (51), a second patterned groove (52), a third patterned groove (53), a fourth patterned groove (54), a fifth patterned groove (55), and a sixth patterned groove (56). The first patterned groove (51) and the second patterned groove (52) are arranged alternately in the circumferential direction. The third patterned groove (53) extends in the circumferential direction in a zigzag trajectory and is connected to the first patterned groove (51) and the second patterned groove (52). The fourth patterned groove (54), the fifth patterned groove (55), and the sixth patterned groove (56) are all connected to the first patterned groove (51).

6. An off-road tire according to claim 1, characterized in that, The patterned ribs (6) include a first patterned rib (61), a second patterned rib (62) and a third patterned rib (63), and the cross-sectional shape of the patterned ribs (6) is "convex".

7. An off-road tire according to claim 5, characterized in that, The self-cleaning device (8) includes a first cleaning rib (81), a second cleaning rib (82), a third cleaning rib (83), a fourth cleaning rib (84), a fifth cleaning rib (85), and a sixth cleaning rib (86). The first cleaning rib (81), the third cleaning rib (83), and the sixth cleaning rib (86) are all fixedly installed in the first patterned groove (51). The second cleaning rib (82) is fixedly installed at the bottom of the second patterned groove (52). The fourth cleaning rib (84) is fixedly installed at the bottom of the sixth patterned groove (56). The fifth cleaning rib (85) is fixedly installed at the bottom of the third patterned groove (53).

8. An off-road tire according to claim 1, characterized in that, The reinforcing sheet (7) includes steel sheet No. 1 (71), steel sheet No. 2 (72), steel sheet No. 3 (73), steel sheet No. 4 (74), steel sheet No. 5 (75), steel sheet No. 6 (76) and steel sheet No. 7 (77). Steel sheet No. 1 (71) and steel sheet No. 2 (72) are fixedly set on patterned block No. 1 (11). Steel sheet No. 3 (73), steel sheet No. 4 (74) and steel sheet No. 5 (75) are fixedly set on patterned block No. 3 (13). Steel sheet No. 6 (76) and steel sheet No. 7 (77) are fixedly set on shoulder patterned block No. 1 (21) and shoulder patterned block No. 2 (22) respectively.

9. An off-road tire according to claim 1, characterized in that, It also includes a support mechanism (9), which includes a hub (91), the hub (91) being fixedly connected to the tire body (10), a plurality of partition plates (93) being fixedly connected to the inner side of the tire body (10), the partition plates (93) being fixedly connected to the hub (91), a fixing collar (92) being fixedly sleeved on the inner side of the hub (91), a plurality of vent holes (97) being opened on the arc surface of the hub (91), a plurality of partition plates (99) being fixedly installed on the inner side of the fixing collar (92), an outer spacer (96) being fixedly connected to the inner side of the fixing collar (92), an inner spacer (95) being fixedly connected to the inner side of the fixing collar (92), and a plurality of connecting holes (98) being opened on the side planes of both the inner spacer (95) and the outer spacer (96).

10. An off-road tire according to claim 1, characterized in that, Several partition plates (93) divide the cavity of the tire body (10) into several non-communicating cavities. The partition plate (99) divides the cavity corresponding to the fixing collar (92) into several non-communicating cavities. The connecting hole (98) corresponding to the inner partition (95) and the connecting hole (98) corresponding to the outer partition (96) are arranged alternately. Two air nozzles (94) are fixedly connected to the inner side of the fixing collar (92).

Images