A type of sand tire

Abstract

This application discloses a sand tire, belonging to the field of tire technology for vehicles traveling in sandy conditions. The key technical feature is that it includes a tire body connected to multiple digging blocks, which are spaced apart circumferentially along the tire body. Each digging block includes a first digging section and a second digging section. A first end of the first digging section is connected to the tire body, and the second digging section is connected to a second end of the first digging section. The second digging section is located at the front end of the first digging section along its forward direction. The first digging section, the second digging section, and the tire body form a digging space with an opening on one side, enabling the tire to dig in sand during vehicle operation, thereby enhancing its traction and anti-skid performance in sandy environments.

Description

Technical Field

[0001] This application relates to the field of tire technology for vehicles that travel on sand, and in particular to a sand tire. Background Technology

[0002] When driving on sandy terrain, tires often encounter problems such as slippage and getting stuck, which not only affects the driving experience but can also pose serious safety hazards. To improve the passability and stability of vehicles in sandy environments, researchers have been exploring various improvement methods.

[0003] Some sand tires typically employ the following design solutions: First, increasing the tire width and contact patch to distribute vehicle weight and reduce the likelihood of the tire sinking. Second, adding raised anti-slip blocks or using special tread patterns to increase friction and improve grip.

[0004] While the aforementioned technologies have improved the performance of sand tires to some extent, significant shortcomings remain. Especially in soft and complex sandy conditions, traditional wide tire designs, although increasing the contact area, also introduce additional weight, impacting vehicle handling and fuel economy. Simple anti-slip strips or special tread patterns, on the other hand, often fail to provide sufficient grip in extreme situations, easily leading to vehicle slippage or getting stuck. Therefore, how to further improve the anti-skid performance and traction of sand tires while maintaining lightweight construction remains a pressing technical challenge. Summary of the Invention

[0005] To enhance the traction and anti-skid performance of tires in sandy environments, this invention provides a sand tire.

[0006] The sand tire provided by this invention adopts the following technical solution:

[0007] A sand-digging tire includes a tire body with a plurality of digging blocks connected to it. The plurality of digging blocks are spaced apart along the circumference of the tire body. Each digging block includes a first digging section and a second digging section. A first end of the first digging section is connected to the tire body, and a second digging section is connected to a second end of the first digging section. The second digging section is located at the front end of the first digging section along the forward direction. The first digging section, the second digging section, and the tire body form a digging space with an opening on one side, which can dig sand during vehicle movement.

[0008] By adopting the above technical solution, the digging blocks quickly cut into the sand during tire operation, forming stable support points, thereby reducing wheel slippage and improving vehicle handling and stability. Multiple digging blocks are spaced apart along the circumference of the tire body, allowing the tire to evenly dig into the sand during operation, improving grip and traction. The design of the second digging section allows it to better cut into the sand during vehicle movement, further enhancing the tire's digging ability and anti-skid performance. In summary, this sand tire effectively improves grip and traction when driving on soft sand.

[0009] Preferably, the excavating block has a first excavating front and a first excavating back. The first excavating front has a first arc surface and a second arc surface. The first arc surface is located on the side of the second arc surface away from the tire body, and the diameter of the second arc surface is larger than the diameter of the first arc surface. The first excavating back has a third arc surface, and the diameter of the third arc surface is larger than the diameter of the second arc surface.

[0010] By adopting the above technical solution, the design of the first digging front and the first digging back allows the digging block to cut into the sand more effectively during vehicle movement, improving tire grip and traction. Specifically, the design of the first and second arc surfaces allows the digging block to cut into the sand quickly upon contact, reducing slippage; while the diameter of the third arc surface is larger than that of the second arc surface, further enhancing the stability of the digging block in the sand and improving the overall stability and passability of the tire.

[0011] Preferably, the excavating block is located on the center line of the tire tread of the tire body.

[0012] By adopting the above technical solutions, it is possible to ensure that the excavated blocks remain stable during vehicle operation, improve the vehicle's grip and traction on sandy terrain, reduce the risk of tire deviation, and make the vehicle drive more smoothly.

[0013] Preferably, the tire body is connected to auxiliary tread blocks, which are evenly distributed along the circumference of the tire body. Each auxiliary tread block includes a tread portion and an auxiliary digging portion. The tread portion is connected to the tire body, and a plurality of auxiliary digging portions are provided. Each auxiliary digging portion is connected to the end of the tread portion away from the tire body, and the auxiliary digging portion is located at the front end of the tread portion along the forward direction. The auxiliary digging portion can dig sand during vehicle travel.

[0014] By adopting the above technical solution, the auxiliary tread blocks enhance tire grip and traction, especially on soft surfaces such as sand. The auxiliary digging sections on the tread blocks further excavate the sand during vehicle movement, improving tire anti-skid performance and stability. Furthermore, the even distribution of the auxiliary tread blocks along the tire's circumference ensures uniform stress distribution, reduces localized wear, and extends tire lifespan.

[0015] Preferably, several of the auxiliary digging sections are symmetrically arranged about the center line of the tire tread.

[0016] By adopting the above technical solution, the symmetrical distribution of the auxiliary excavation parts ensures balanced lateral forces when the vehicle is driving on sand, improving vehicle stability and handling. It also helps reduce uneven tire wear and extend tire life.

[0017] Preferably, the auxiliary tread block is provided with a second digging front and a second digging back. The second digging front includes a fourth arc surface and a fifth arc surface. The fourth arc surface is located on the side of the fifth arc surface away from the tire body, and the diameter of the fourth arc surface is larger than the diameter of the fifth arc surface. The diameter of the fifth arc surface is larger than the diameter of the second arc surface. The second digging back is provided with a sixth arc surface, and the diameter of the sixth arc surface is larger than the diameter of the third arc surface.

[0018] By adopting the above technical solution, the design of the second digging front and second digging back on the auxiliary tread blocks can significantly improve the tire's grip and traction in sand. Specifically, the design of the fourth and fifth arc surfaces allows the tire to better cut into the sand during driving, thereby reducing slippage. At the same time, the diameter of the sixth arc surface is larger than that of the third arc surface, further enhancing the tire's support and stability in sand, improving vehicle passability and safety, and enhancing driving comfort.

[0019] Preferably, the tire body is connected to a first tread pattern assembly and a second tread pattern group, the first tread pattern group and the second tread pattern group are respectively disposed on both sides of the excavation block; multiple sets of the first tread pattern assembly are provided, and multiple sets of the first tread pattern group are spaced apart along the circumference of the tire body; multiple sets of the second tread pattern assembly are provided, and multiple sets of the second tread pattern group are spaced apart along the circumference of the tire body.

[0020] The first tread pattern group and the second tread pattern group have the same structure. The top surface of the first tread pattern group is set along the circumferential arc of the tire body, and the height of the first tread pattern group gradually decreases along the forward direction. The lowest point of the top surface of the first tread pattern group is the same as the height of the digging block.

[0021] By adopting the above technical solutions, during tire operation, the first tread assembly and the second tread group significantly increase the contact area between the tire and the ground, and the curved design better adapts to sandy terrain, improving the tire's grip and anti-skid performance. Simultaneously, the curved design effectively distributes tire stress, reducing wear caused by excessive localized pressure. During operation, the digging blocks quickly cut into and push away the sand in front, effectively reducing the risk of the tire sinking. The first and second tread assemblies work synergistically with the digging blocks to enhance suspension force. This not only enhances overall grip but also provides better handling stability and acceleration performance, further improving the vehicle's passability and safety in sandy environments.

[0022] Preferably, the first tread pattern group includes a first tread block and a second tread block, the first tread block and the second tread block are spaced apart, and both are connected to the tire body, the first tread block is located at the front end of the second tread block along the forward direction;

[0023] The second tread block has an inclined portion at its top, which is inclined toward the tire shoulder. The inclined portion has an inclined surface, and the area of ​​the inclined surface gradually increases from one end near the first tread block to the other end.

[0024] By adopting the above technical solution, the spacing between the first and second tread blocks improves the tire's water drainage performance, reduces mud and sand accumulation, and thus enhances the tire's grip on wet or soft surfaces. The inclined portion at the top of the second tread block slopes towards the tire shoulder, guiding sand and facilitating its removal. The inclined surface further guides the sand, further increasing sand removal performance.

[0025] Preferably, the first pattern group and the second pattern group are staggered.

[0026] By adopting the above technical solution, the staggered arrangement of the first and second tread patterns can effectively improve the tire's grip and traction performance in sandy conditions, reduce the problem of local pressure concentration caused by tread pattern alignment, thereby reducing tire slippage and improving the vehicle's driving stability in sandy environments.

[0027] In summary, the present invention has the following beneficial effects:

[0028] 1. During tire operation, the digging blocks quickly penetrate the sand, forming stable support points, thereby reducing wheel slippage and improving vehicle handling and stability. Multiple digging blocks are spaced apart along the circumference of the tire body, allowing the tire to evenly dig into the sand during operation, improving grip and traction. The design of the second digging section allows it to better penetrate the sand during vehicle movement, further enhancing the tire's digging ability and anti-skid performance. In summary, this sand tire effectively improves grip and traction when driving on soft sand.

[0029] 2. The combined use of auxiliary tread blocks and digging blocks further enhances the tire's anti-skid performance, improving vehicle safety and efficiency in complex sandy environments;

[0030] 3. During driving, the digging blocks can quickly cut into and push away the sand in front, effectively reducing the risk of the tire sinking. The first and second tread pattern components work together with the digging blocks to improve suspension force. This not only enhances overall grip but also gives the vehicle better handling stability and acceleration performance, further improving the vehicle's ability to pass through sandy environments and its safety. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall structure of a sand tire in Example 1.

[0032] Figure 2 This is a schematic diagram of the excavation block structure.

[0033] Figure 3 This is a schematic diagram of the overall structure of a sand tire in Example 2.

[0034] Figure 4 This is a schematic diagram of the auxiliary patterned blocks.

[0035] Figure 5 This is a schematic diagram of the overall structure of a sand tire in Example 3.

[0036] Figure 6 This is a schematic diagram of the curvature of the first pattern component.

[0037] Figure 7 This is a schematic diagram showing the location of the inclined section.

[0038] Explanation of reference numerals in the attached figures:

[0039] 1. Tire body; 2. Excavating block; 21. First excavating part; 22. Second excavating part; 23. First excavating front; 231. First arc surface; 232. Second arc surface; 24. First excavating back; 241. Third arc surface; 3. Auxiliary tread block; 31. Tread part; 32. Auxiliary excavating part; 33. Second excavating front; 331. Fourth arc surface; 332. Fifth arc surface; 34. Second excavating back; 341. Sixth arc surface; 4. First tread group; 41. First tread block; 42. Second tread block; 421. Inclined part; 4211. Inclined surface; 5. Second tread group. Detailed Implementation

[0040] The present invention will be further described in detail below with reference to the accompanying drawings.

[0041] A type of sand tire, reference Figure 1 and Figure 2 The system includes a tire body 1, to which multiple digging blocks 2 are connected, spaced apart circumferentially along the tire body 1. Each digging block 2 includes a first digging section 21 and a second digging section 22. The first end of the first digging section 21 is connected to the tire body 1, and the second digging section 22 is connected to the second end of the first digging section 21, located at the front end of the first digging section 21 along its forward direction. The first digging section 21, the second digging section 22, and the tire body 1 are integrally formed. The first digging section 21, the second digging section 22, and the tire body 1 form a digging space with an opening on one side, enabling the digging of sand while the vehicle is in motion.

[0042] During tire operation, the digging blocks 2 can quickly penetrate the sand, forming a stable support point, thereby reducing wheel slippage and improving vehicle handling and stability. Multiple digging blocks 2 are spaced apart along the circumference of the tire body 1, allowing the tire to evenly dig into the sand during operation, improving grip and traction. The design of the second digging section 22 allows it to better penetrate the sand while the vehicle is in motion, further enhancing the tire's digging ability and anti-skid performance.

[0043] Reference Figure 1 and Figure 2 The height of the excavation block 2 is 10mm. Multiple excavation blocks 2 are located on the center line of the tread of the tire body 1.

[0044] It can ensure that the excavator block 2 remains stable during vehicle movement, improve the vehicle's grip and traction on sand, and reduce the risk of tire deviation, making the vehicle drive more smoothly.

[0045] Reference Figure 1 and Figure 2 The thickness of the end of the second excavation section 22 away from the first excavation section 21 is 2mm-5mm, preferably 2.5mm.

[0046] Reference Figure 1 and Figure 2 The excavating block 2 has a first excavating front side 23 and a first excavating back side 24. The first excavating front side 23 has a first arc surface 231 and a second arc surface 232. The first arc surface 231 is located on the side of the second arc surface 232 away from the tire body 1, and the diameter of the second arc surface 232 is larger than the diameter of the first arc surface 231. Preferably, the radius of the first arc surface 231 is 3 mm, and the radius of the second arc surface 232 is preferably 4 mm.

[0047] The design of the first arc surface 231 and the second arc surface 232 enables the excavation block 2 to quickly cut into the sand when it comes into contact with it. The larger arc of the second arc surface 232 ensures that it remains relatively stable in contact with the sand during the excavation process, reducing slippage.

[0048] Reference Figure 1 and Figure 2 The first excavator back surface 24 is provided with a third arc surface 241, the diameter of which is larger than the diameter of the second arc surface 232. This further enhances the stability of the excavator block 2 in sandy conditions and improves the overall stability and passability of the tire. The radius of the third arc surface 241 is preferably 10 mm.

[0049] The working principle of this application is as follows: By setting multiple digging blocks 2 on the tire body 1, sand can be effectively dug, improving the tire's grip and passability. This design not only solves the problem of traditional tires easily slipping and getting stuck in sand, but also improves the vehicle's adaptability and safety in complex terrain.

[0050] Example 2

[0051] A sand tire, differing from Example 1 in that, referring to Figure 3 The tire body 1 is connected to auxiliary tread blocks 3, which are integrally formed with the tire body 1. There are multiple auxiliary tread blocks 3, and the multiple auxiliary tread blocks 3 are evenly distributed along the circumference of the tire body 1.

[0052] The auxiliary tread blocks 3 can enhance the tire's grip and traction, especially on soft surfaces such as sand.

[0053] Reference Figure 3 Each pair of adjacent excavation blocks 2 is set as a group, and each pair of adjacent auxiliary pattern blocks 3 is set as a group. Each group of auxiliary pattern blocks 3 is connected by a group of excavation blocks 2.

[0054] An excessive number of excavation blocks 2 may reduce the contact area between the tire and the sand, leading to insufficient traction. Therefore, the quantity design in this implementation can both ensure tire traction and improve anti-skid performance.

[0055] Reference Figure 4 The auxiliary tread block 3 includes a tread section 31 and an auxiliary digging section 32. The first end of the tread section 31 is connected to the tire body 1, and the second end is connected to the auxiliary digging section 32. Several auxiliary digging sections 32 are provided, and all of them are located at the front end of the tread section 31 along the forward direction. The auxiliary digging sections 32 can further dig sand during vehicle travel, improving the tire's anti-skid performance and stability.

[0056] Reference Figure 3 and Figure 4 The maximum height of the tread pattern 31 is located on the center line of the crown of the tire body 1, and the maximum height is 25mm. The height of the tread pattern 31 gradually decreases from the center line of the crown to the shoulder.

[0057] Reference Figure 3 and Figure 4 In this embodiment, three auxiliary digging sections 32 are provided, and the three auxiliary digging sections 32 are symmetrically arranged about the center line of the tread. The thickness of the free end of the auxiliary digging section 32 away from the tread pattern 31 is 2mm-5mm, preferably 3mm. The height of the auxiliary digging section 32 varies with the tread pattern 31.

[0058] The three auxiliary digging sections 32 are symmetrically distributed on both sides of the tire, thereby ensuring that the vehicle experiences balanced forces on both sides when driving on sand, improving the vehicle's stability and handling.

[0059] Reference Figure 3 and Figure 4 The auxiliary tread block 3 has a second digging face 33, which includes a fourth arc surface 331 and a fifth arc surface 332. The fourth arc surface 331 is located on the side of the fifth arc surface 332 away from the tire body 1, and the diameter of the fourth arc surface 331 is larger than the diameter of the fifth arc surface 332. The diameter of the fifth arc surface 332 is larger than the diameter of the second arc surface 232. Preferably, the radius of the fourth arc surface 331 is 9 mm, and the radius of the fifth arc surface 332 is preferably 8 mm.

[0060] The design of the fourth arc surface 331 and the fifth arc surface 332 allows the tire to cut into the sand better when driving, thereby reducing slippage.

[0061] Reference Figure 3 and Figure 4 The auxiliary pattern block 3 is provided with a second excavation back surface 34, and the second excavation back surface 34 is provided with a sixth arc surface 341. The diameter of the sixth arc surface 341 is larger than the diameter of the third arc surface 241, and the radius of the sixth arc surface 341 is preferably 20mm.

[0062] The design of the sixth arc surface 341 further enhances the tire's support and stability in sandy conditions, improves vehicle passability and safety, and enhances driving comfort.

[0063] In this embodiment, this design is used for the rear tire of a vehicle.

[0064] The operating principle of this application is as follows: By setting auxiliary tread blocks 3 on the tire body 1, especially tread blocks with auxiliary digging parts 32, the tire's grip and passability can be further enhanced, improving the vehicle's adaptability in complex terrain. This design not only improves the vehicle's driving performance but also extends the tire's service life and reduces maintenance costs.

[0065] Example 3

[0066] A sand tire, differing from Example 1 in that, referring to Figure 5 The tire body 1 is connected to a first tread pattern group 4 and a second tread pattern group 5, which are respectively located on both sides of the excavation block 2. Multiple first tread pattern groups 4 are provided, spaced apart along the circumference of the tire body 1. Multiple second tread pattern groups 5 are also provided, spaced apart along the circumference of the tire body 1. Both the first tread pattern groups 4 and the second tread pattern groups 5 are integrally formed with the tire body 1.

[0067] During driving, the first tread pattern group 4 and the second tread pattern group 5 significantly increase the contact area between the tire and the ground, and the curved surface design can better adapt to sandy terrain, improving the tire's grip and anti-skid performance.

[0068] Reference Figure 5 The first tread pattern group 4 and the second tread pattern group 5 are staggered. This effectively improves the tire's grip and traction performance in sandy conditions, reduces the problem of localized pressure concentration caused by tread pattern alignment, thereby reducing tire slippage and improving vehicle stability in sandy environments.

[0069] Reference Figure 5 In this embodiment, the first pattern group 4 and the second pattern group 5 have the same structure. Therefore, this embodiment only describes the first pattern group 4 in detail.

[0070] Reference Figure 6 The top surface of the first pattern group 4 is curved, and its curvature is located on the arc surface a. The height of the first pattern group 4 gradually decreases along the forward direction, and the lowest point of the top surface of the first pattern group 4 is the same as the height of the excavation block 2.

[0071] The curved surface design effectively distributes tire stress, reducing wear caused by excessive localized pressure. During driving, the digging block 2 quickly cuts into and pushes away sand, effectively reducing the risk of the tire sinking. The first tread pattern group 4 and the second tread pattern group 5 work in conjunction with the digging block 2 to enhance suspension force. This not only strengthens overall grip but also improves vehicle handling stability and acceleration performance, further enhancing the vehicle's ability to traverse sandy terrain and its safety.

[0072] Reference Figure 5 and Figure 7 The first pattern group 4 includes a first pattern block 41 and a second pattern block 42. The first pattern block 41 and the second pattern are spaced apart and both are connected to the tire body 1. The first pattern block 41 is located at the front end of the second pattern block 42 along the forward direction.

[0073] Reference Figure 7 The second tread block 42 has an inclined portion 421 at its top, which is inclined towards the tire shoulder. The inclined portion 421 has an inclined surface 4211, which is located on the side near the digging block 2 and is inclined from one end near the tire body 1 to the other end away from the digging block 2. The area of ​​the inclined surface 4211 gradually increases from one end near the first tread block 41 to the other end.

[0074] The first patterned block 41 is located at the front end of the second patterned block 42 along the forward direction, and the inclined part 421 provided at the top of the second patterned block 42 is inclined towards the shoulder. The inclined surface 4211 has a guiding effect on the sand and increases the sand discharge performance.

[0075] In this embodiment, this design is used for the front tire of a vehicle.

[0076] The operating principle of this application is as follows: By setting a first tread pattern group 4 and a second tread pattern group 5 on the tire body 1, the tire's grip and sand-repelling performance can be further optimized, improving the vehicle's driving performance in sandy terrain. This design not only enhances the vehicle's driving safety and comfort but also extends the tire's service life and reduces maintenance costs.

[0077] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A sand-driving tire, characterized in that: Includes a tire body (1), the tire body (1) is connected to a plurality of digging blocks (2), the plurality of digging blocks (2) are distributed circumferentially along the tire body (1); The excavation block (2) includes a first excavation part (21) and a second excavation part (22). The first end of the first excavation part (21) is connected to the tire body (1), and the second excavation part (22) is connected to the second end of the first excavation part (21). The second excavation part (22) is located at the front end of the first excavation part (21) along the forward direction. The first excavation part (21), the second excavation part (22) and the tire body (1) form an excavation space with an opening on one side, which can excavate sand during vehicle travel. The excavation block (2) is provided with a first excavation front (23) and a first excavation back (24). The first excavation front (23) is provided with a first arc surface (231) and a second arc surface (232). The first arc surface (231) is located on the side of the second arc surface (232) away from the tire body (1), and the diameter of the second arc surface (232) is larger than the diameter of the first arc surface (231). The first excavation back (24) is provided with a third arc surface (241), and the diameter of the third arc surface (241) is larger than the diameter of the second arc surface (232). The tire body (1) is connected to a first tread pattern group (4) and a second tread pattern group (5), the first tread pattern group (4) and the second tread pattern group (5) are respectively located on both sides of the excavation block (2); multiple sets of the first tread pattern group (4) are provided, and multiple sets of the first tread pattern group (4) are spaced apart along the circumference of the tire body (1); multiple sets of the second tread pattern group (5) are provided, and multiple sets of the second tread pattern group (5) are spaced apart along the circumference of the tire body (1); The first pattern group (4) and the second pattern group (5) have the same structure. The top surface of the first pattern group (4) is set along the circumferential arc of the tire body (1), and the height of the first pattern group (4) gradually decreases along the forward direction. The lowest point of the top surface of the first pattern group (4) is the same as the height of the digging block (2). The first pattern group (4) includes a first pattern block (41) and a second pattern block (42). The first pattern block (41) and the second pattern block (42) are spaced apart and both are connected to the tire body (1). The first pattern block (41) is located at the front end of the second pattern block (42) along the forward direction. The second tread block (42) has an inclined portion (421) at its top. The inclined portion (421) is inclined towards the tire shoulder. The inclined portion (421) has an inclined surface (4211). The area of ​​the inclined surface (4211) gradually increases from one end near the first tread block (41) to the other end. The first tread group (4) and the second tread group (5) are staggered.

2. A sand-driving tire according to claim 1, characterized in that: The excavation block (2) is located on the center line of the tread of the tire body (1).

3. A sand-driving tire according to claim 1, characterized in that: The tire body (1) is connected to auxiliary tread blocks (3), which are evenly distributed around the tire body (1). Each auxiliary tread block (3) includes a tread portion (31) and an auxiliary digging portion (32). The tread portion (31) is connected to the tire body (1), and several auxiliary digging portions (32) are provided. Each auxiliary digging portion (32) is connected to the end of the tread portion (31) away from the tire body (1), and the auxiliary digging portion (32) is located at the front end of the tread portion (31) along the forward direction. The auxiliary digging portion (32) can dig sand during vehicle travel.

4. A sand-driving tire according to claim 3, characterized in that: Several of the aforementioned auxiliary excavation units (32) are symmetrically arranged about the center line of the tire tread.

5. A sand-driving tire according to claim 4, characterized in that: The auxiliary tread block (3) is provided with a second digging front (33) and a second digging back (34). The second digging front (33) includes a fourth arc surface (331) and a fifth arc surface (332). The fourth arc surface (331) is located on the side of the fifth arc surface (332) away from the tire body (1), and the diameter of the fourth arc surface (331) is larger than the diameter of the fifth arc surface (332). The diameter of the fifth arc surface (332) is larger than the diameter of the second arc surface (232). The second digging back (34) is provided with a sixth arc surface (341), and the diameter of the sixth arc surface (341) is larger than the diameter of the third arc surface (241).

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