Special tire and tread pattern for new energy bus in rainy and snowy days
By designing the tread pattern of the special tires for rain and snow days of new energy buses, the slippage and chassis corrosion problems of new energy buses in rain and snow days are solved, and efficient external drainage and grip performance are improved.
Patent Information
- Application Number
- CN202422277855.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-18
- Publication Date
- 2025-07-04
- Estimated Expiration
- 2034-09-18
AI Technical Summary
New energy buses are prone to slip in rainy and snowy weather, and drainage on the inner side of the tire causes mud and water to splash to the bottom of the vehicle, corroding the chassis, and increasing the risk of battery damage.
Design a special tire tread pattern for rain and snow days for new energy buses, including Z-shaped transverse grooves on the outer shoulder block, folded linear grooves on the central block, and wedge grooves on the inner shoulder block to enhance the drainage efficiency on the outer side, reduce the drainage splash on the inner side, and improve the grip performance.
Improve the outside drainage efficiency of tires in rainy and snowy weather, reduce the inside drainage splash, reduce the risk of chassis corrosion, and enhance the grip and anti-slip performance.
Smart Images
Figure CN223058704U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to a special tire and tread pattern for new energy buses in rainy and snowy weather, belonging to the technical field of tires. Background Art
[0002] Compared with traditional fuel buses, new energy buses have a greater starting torque, especially when used in rainy and snowy weather, which may cause the vehicle to slip more easily when starting. Therefore, higher requirements are imposed on the drainage and grip performance of the tires of new energy vehicles.
[0003] The batteries of new energy vehicles, especially pure electric models, are usually arranged at the bottom of the vehicle. This also means that once the chassis is knocked, especially under a heavy blow, it may cause battery damage and even trigger safety problems such as spontaneous combustion.
[0004] Existing tires usually drain water to both sides through drainage grooves to eliminate the driving hazards caused by hydroplaning. However, the drainage inside the tire will cause mud and water to splash onto the bottom of the vehicle and is not easy to clean. The mud and water mixed with a large amount of impurities will cause corrosion problems to the protective chassis of new energy vehicles. Especially in snowy weather, the snow water mixed with snow melting agents has strong corrosiveness, which will aggravate the corrosion of the chassis, thereby reducing the strength of the chassis. And after the chassis of new energy vehicles is corroded, the protection strength will be weakened, adding some risks to the battery protection of new energy vehicles. Summary of the Utility Model
[0005] In order to solve the above problems, the present application proposes a special tire and tread pattern for new energy buses in rainy and snowy weather, which improves the drainage efficiency on the outer side and weakens the drainage on the inner side of the tires of new energy buses driving in rainy and snowy weather, so that the bottom of the vehicle will not be aggravated by corrosion due to the splashing of the inner side drainage of the tires, and at the same time improves the anti-slip and grip performance of new energy buses driving in rainy and snowy weather.
[0006] According to one aspect of the present application, there is provided a special tread pattern for new energy buses in rainy and snowy weather, which includes longitudinal tread blocks and longitudinal grooves distributed circumferentially along the tire tread;
[0007] The longitudinal tread blocks sequentially include outer shoulder tread blocks, first longitudinal tread blocks, central tread blocks, second longitudinal tread blocks and inner shoulder tread blocks;
[0008] The longitudinal grooves include a first longitudinal groove, a second longitudinal groove, a third longitudinal groove and a fourth longitudinal groove; and the first longitudinal groove is located between the outer shoulder tread block and the first longitudinal tread block, the second longitudinal groove is located between the first longitudinal tread block and the central tread block, the third longitudinal groove is located between the central tread block and the second longitudinal tread block, and the fourth longitudinal groove is located between the second longitudinal tread block and the inner shoulder tread block;
[0009] The outer shoulder tread blocks are provided with first transverse grooves, and the first transverse grooves are Z-shaped, and the widths at both the upper and lower ends gradually decrease towards the ends.
[0010] The central tread blocks are provided with a first knife groove and a second knife groove. The first knife groove is zigzag; chamfers are provided at both ends of the second knife groove.
[0011] Optionally, the inner shoulder tread blocks are provided with second transverse grooves that are closed on the outside, and the second transverse grooves are wedge-shaped grooves with a depth gradually decreasing from the outside to the inside.
[0012] Optionally, the ratio of the minimum width to the maximum width of the first transverse groove is 0.1 - 0.5.
[0013] Optionally, the included angle of the zigzag of the first knife groove is 60° - 90°.
[0014] Optionally, the first transverse groove communicates with the first longitudinal groove; both the first knife groove and the second knife groove communicate with the second longitudinal groove and the third longitudinal groove.
[0015] Optionally, the first longitudinal tread blocks are provided with a third transverse groove and a third knife groove;
[0016] One end of the third transverse groove communicates with the first longitudinal groove, and the other end communicates with the third knife groove; one end of the third knife groove communicates with the second longitudinal groove, and the other end communicates with the third transverse groove.
[0017] Optionally, the first longitudinal tread blocks are further provided with a fourth knife groove, and both ends of the fourth knife groove communicate with the first longitudinal groove and the second longitudinal groove respectively, and intersect with the third transverse groove.
[0018] Optionally, the second longitudinal tread blocks are provided with a fourth transverse groove and a fifth knife groove;
[0019] One end of the fourth transverse groove communicates with the third longitudinal groove, and the other end communicates with the fifth knife groove; one end of the fifth knife groove communicates with the fourth longitudinal groove, and the other end communicates with the fourth transverse groove.
[0020] Optionally, the second longitudinal tread blocks are further provided with a sixth knife groove, and both ends of the sixth knife groove communicate with the third longitudinal groove and the fourth longitudinal groove respectively, and intersect with the fourth transverse groove;
[0021] Both the third transverse groove and the fourth transverse groove are arc-shaped and are centrosymmetrically distributed.
[0022] According to another aspect of the present application, a special tire for new energy buses in rainy and snowy days is provided, including the above-mentioned tread of the new energy bus.
[0023] The beneficial effects that this application can produce include but are not limited to:
[0024] 1. For a special tread pattern for new energy buses in rainy and snowy weather provided by this application, by setting the Z-shaped first transverse groove on the outer shoulder tread block, on the one hand, it strengthens the guiding effect on the water stored in the first longitudinal groove, so that the water in the tread pattern groove is drained to the tire edge faster; on the other hand, the gradually decreasing width at the lower end of the Z shape is conducive to forming a faster water flow at the end of the groove, thereby accelerating the drainage of water, and effectively improving the drainage efficiency on the outer side of the tire.
[0025] 2. For a special tread pattern for new energy buses in rainy and snowy weather provided by this application, by setting the zigzag first knife groove and the second knife groove with a chamfer, it is beneficial to quickly pierce the water film on the tire surface and disperse the water to the drainage grooves on both sides to play an auxiliary drainage role. At the same time, the tread pattern mainly composed of knife grooves can also maintain the straight-line driving stability and wet traction of the central tread block.
[0026] 3. For a special tread pattern for new energy buses in rainy and snowy weather provided by this application, by limiting the ratio of the maximum width to the minimum width of the first transverse groove, it ensures the effectiveness of the influence of the groove width change on the water flow speed, thereby achieving the effect of rapid diversion and drainage.
[0027] 4. For a special tread pattern for new energy buses in rainy and snowy weather provided by this application, by limiting the zigzag angle of the first knife groove, on the one hand, it avoids the excessive land-sea ratio of the central tread block caused by too small an angle setting, which affects the driving stability performance, and on the other hand, it also avoids the difficulty of achieving the ideal water-breaking effect due to too large a zigzag angle, which affects the driving performance on wet and slippery roads.
[0028] 5. For a special tread pattern for new energy buses in rainy and snowy weather provided by this application, by setting the transverse grooves and knife grooves on the first longitudinal tread block and the second longitudinal tread block to be mutually connected and communicated with the longitudinal tread grooves on both sides, it effectively enhances the drainage efficiency of the tread pattern, and jointly acts with the transverse grooves on the outer shoulder tread block to enhance the outer drainage efficiency and reduce the inner drainage demand, thereby reducing the hidden danger of inner drainage splash; in addition, the rich knife groove design ensures the wetland anti-slip performance of the tread.
[0029] 6. For a special tread pattern for new energy buses in rainy and snowy weather provided by this application, by setting the transverse groove on the inner shoulder as a wedge-shaped groove with a gradually decreasing depth, it ensures the drainage on the inner side of the tire while the drainage speed reaches the minimum at the tire edge and there will be no inner splash, and strengthens the grip and traction of the tire. Description of the Drawings
[0030] The accompanying drawings described herein are used to provide a further understanding of the present application and form a part of the present application. The schematic embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation of the present application. In the drawings:
[0031] Figure 1 It is a schematic overall view of a tire adopting the special tread pattern for rainy and snowy days of a new energy bus according to an embodiment of the present application;
[0032] Figure 2 It is a schematic view of the tread pattern structure according to an embodiment of the present application;
[0033] Figure 3 It is a schematic view of the tread pattern structure with knife grooves provided on the tire shoulders according to an embodiment of the present application.
[0034] Reference numerals:
[0035] 1 Tire; 2 Outer tire shoulder tread block; 3 First longitudinal tread block; 4 Central tread block; 5 Second longitudinal tread block; 6 Inner tire shoulder tread block; 7 First longitudinal groove; 8 Second longitudinal groove; 9 Third longitudinal groove; 10 Fourth longitudinal groove; 11 First transverse groove; 12 Second transverse groove; 13 Third transverse groove; 14 Fourth transverse groove; 15 First knife groove; 16 Second knife groove; 17 Third knife groove; 18 Fourth knife groove; 19 Fifth knife groove; 20 Sixth knife groove; 21 Seventh knife groove; 22 Eighth knife groove. Detailed implementation manners
[0036] In order to more clearly illustrate the overall concept of the present application, the following will be described in detail by way of examples in conjunction with the drawings of the specification.
[0037] In order to be able to more clearly understand the above objects, features and advantages of the present application, the following will further describe the present application in detail in conjunction with the drawings and specific implementation manners. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.
[0038] Many specific details are set forth in the following description in order to fully understand the present application. However, the present application can also be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below.
[0039] In addition, in the description of the present application, it should be understood that the orientation or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present application.
[0040] In addition, the terms "first" and "second" are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, the meaning of "a plurality" is two or more, unless otherwise specifically defined.
[0041] In the present application, unless otherwise clearly specified and limited, the terms "mounted", "connected", "coupled", "fixed", etc. should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or a communication connection; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.
[0042] In the present application, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms are not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.
[0043] Reference Figure 1 , embodiments of the present application disclose a tire, including a special tread for new energy buses in rainy and snowy weather.
[0044] Reference Figure 2, embodiments of the present application disclose a special tread pattern for new energy buses in rainy and snowy weather, including: longitudinal tread blocks and longitudinal grooves distributed circumferentially along the tread of the tire 1;
[0045] The longitudinal tread blocks sequentially include an outer shoulder tread block 2, a first longitudinal tread block 3, a central tread block 4, a second longitudinal tread block 5, and an inner shoulder tread block 6;
[0046] The longitudinal grooves include a first longitudinal groove 7, a second longitudinal groove 8, a third longitudinal groove 9, and a fourth longitudinal groove 10; and the first longitudinal groove 7 is located between the outer shoulder tread block 2 and the first longitudinal tread block 3, the second longitudinal groove 8 is located between the first longitudinal tread block 3 and the central tread block 4, the third longitudinal groove 9 is located between the central tread block 4 and the second longitudinal tread block 5, and the fourth longitudinal groove 10 is located between the second longitudinal tread block 5 and the inner shoulder tread block 6;
[0047] The outer shoulder tread block 2 is provided with a first transverse groove 11, and the first transverse groove 11 is Z-shaped and the widths of both the upper and lower ends gradually decrease towards the ends; utilizing Bernoulli's principle, the upper end of the Z-shape is located on the inner side of the tread, and the end is connected to the first longitudinal groove 7. The gradually decreasing width towards the end is conducive to the water in the longitudinal groove being quickly diverted into the Z-shaped groove under the action of the flow velocity difference caused by the width difference; the lower end of the Z-shape is located on the outer side of the tread, and the gradually decreasing width towards the end is conducive to increasing the speed of the drainage water flow, thereby discharging it faster.
[0048] The central tread block 4 is provided with a first knife groove 15 and a second knife groove 16, and the first knife groove 15 is zigzag; both ends of the second knife groove 16 are provided with chamfers. The zigzag knife groove and the knife groove with chamfers can jointly play an effective role in piercing the water film on the road surface and assist the drainage of the longitudinal groove and the transverse groove; at the same time, the continuous tread blocks on the central tread block 4 improve the straight-line driving stability of the tire.
[0049] As an implementation manner, the inner shoulder tread block 6 is provided with a second transverse groove 12 that is closed on the outside. The second transverse groove 12 is a wedge-shaped groove with a depth gradually decreasing from the outside to the inside. The width of the wedge-shaped groove gradually increases towards the inner tire edge while the depth gradually decreases. The water flow velocity in the groove of the inner shoulder tread block 6 reaches the minimum at the tire edge, thus effectively avoiding the splashing of the water drained from the tire towards the inner bottom of the vehicle.
[0050] Specifically, the ratio of the minimum width to the maximum width of the first transverse groove 11 is 0.1 - 0.5. When the ratio is 0.1, the drainage effect of the outer shoulder tread block 2 is the best.
[0051] Specifically, the included angle of the broken line of the broken-line-shaped first knife groove 15 is 60° to 90°. If the included angle of the broken line is too small, it will lead to too high a land-sea ratio of the central tread block 4, which will have a greater adverse impact on the wear resistance of the tread; while too large a pattern included angle will affect the water-breaking performance of the groove.
[0052] As an implementation manner, the first transverse groove 11 communicates with the first longitudinal groove 7; both the first knife groove 15 and the second knife groove 16 communicate with the second longitudinal groove 8 and the third longitudinal groove 9.
[0053] As an implementation manner, the first longitudinal tread block 3 is provided with a third transverse groove 13 and a third knife groove 17; one end of the third transverse groove 13 communicates with the first longitudinal groove 7, and the other end communicates with the third knife groove 17; one end of the third knife groove 17 communicates with the second longitudinal groove 8, and the other end communicates with the third transverse groove 13.
[0054] As an implementation manner, the first longitudinal tread block 3 is further provided with a fourth knife groove 18. Both ends of the fourth knife groove 18 communicate with the first longitudinal groove 7 and the second longitudinal groove 8 respectively, and intersect with the third transverse groove 13.
[0055] As an implementation manner, the second longitudinal tread block 5 is provided with a fourth transverse groove 14 and a fifth knife groove 19; one end of the fourth transverse groove 14 communicates with the third longitudinal groove 9, and the other end communicates with the fifth knife groove 19; one end of the fifth knife groove 19 communicates with the fourth longitudinal groove 10, and the other end communicates with the fourth transverse groove 14;
[0056] The first longitudinal tread block 3 and the second longitudinal tread block 5 are provided with rich knife groove patterns, providing better wet traction.
[0057] As an implementation manner, the second longitudinal tread block 5 is further provided with a sixth knife groove 20. Both ends of the sixth knife groove 20 communicate with the third longitudinal groove 9 and the fourth longitudinal groove 10 respectively, and intersect with the fourth transverse groove 14; both the third transverse groove 13 and the fourth transverse groove 14 are arc-shaped and centrosymmetrically distributed. The transverse grooves are substantially interconnected with the four longitudinal tread grooves, strengthening the hydrophobic process of the tire tread and facilitating the rapid drainage of the tread; at the same time, the transverse grooves also provide the grip and handling performance on wet and slippery roads in rainy and snowy days.
[0058] The third knife groove 17, the fourth knife groove 18, the fifth knife groove 19, and the sixth knife groove 20 can be linear or curved, preferably wavy.
[0059] Reference Figure 3, the inner shoulder tread block 6 may further have a seventh groove 21, and the seventh groove 21 is an arbitrarily shaped groove that is closed on the inner side; the outer shoulder tread block 2 may further have an eighth groove 22, and the eighth groove 22 is an arbitrarily shaped groove. The setting of the grooves provides further assistance for the handling performance of the tire shoulder.
[0060] Each embodiment in this specification is described in a progressive manner. For the same or similar parts among the embodiments, reference can be made to each other. Each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and reference can be made to the relevant part of the method embodiment for the relevant content.
[0061] The above description is only for the embodiments of the present application and is not intended to limit the present application. For those skilled in the art, various changes and modifications can be made to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included within the scope of the claims of the present application.
Claims
1. A special tread pattern for new energy buses in rainy and snowy weather, characterized in that, It includes longitudinal tread blocks and longitudinal grooves distributed circumferentially along the tire tread; The longitudinal tread blocks successively include outer shoulder tread blocks, first longitudinal tread blocks, central tread blocks, second longitudinal tread blocks and inner shoulder tread blocks; The longitudinal grooves include a first longitudinal groove, a second longitudinal groove, a third longitudinal groove and a fourth longitudinal groove; and the first longitudinal groove is located between the outer shoulder tread block and the first longitudinal tread block, the second longitudinal groove is located between the first longitudinal tread block and the central tread block, the third longitudinal groove is located between the central tread block and the second longitudinal tread block, and the fourth longitudinal groove is located between the second longitudinal tread block and the inner shoulder tread block; A first transverse groove is provided on the outer shoulder tread block, and the first transverse groove is Z-shaped and the widths of both the upper and lower ends gradually decrease towards the ends; A first knife groove and a second knife groove are provided on the central tread block, and the first knife groove is zigzag; chamfers are provided at both ends of the second knife groove.
2. The special tread pattern for new energy buses in rainy and snowy days according to claim 1, wherein A second transverse groove that is closed on the outside is provided on the inner shoulder tread block, and the second transverse groove is a wedge-shaped groove with a depth gradually decreasing from the outside to the inside.
3. The special tread pattern for new energy buses in rainy and snowy days according to claim 1, characterized in that, The ratio of the minimum width to the maximum width of the first transverse groove is 0.1 to 0.
5.
4. The special tread pattern for new energy buses in rainy and snowy days according to claim 1, characterized in that, The included angle of the zigzag of the zigzag first knife groove is 60° to 90°.
5. The special tread pattern for a new energy bus in rainy and snowy days according to claim 1, wherein The first transverse groove communicates with the first longitudinal groove; both the first knife groove and the second knife groove communicate with the second longitudinal groove and the third longitudinal groove.
6. The special tread pattern for new energy buses in rainy and snowy days according to claim 1, characterized in that A third transverse groove and a third knife groove are provided on the first longitudinal tread block; One end of the third transverse groove communicates with the first longitudinal groove, and the other end communicates with the third knife groove; one end of the third knife groove communicates with the second longitudinal groove, and the other end communicates with the third transverse groove.
7. The special tread pattern for new energy buses in rainy and snowy days according to claim 6, wherein, A fourth knife groove is further provided on the first longitudinal tread block, and both ends of the fourth knife groove communicate with the first longitudinal groove and the second longitudinal groove respectively and intersect with the third transverse groove.
8. A special tread pattern for new energy buses in rainy and snowy days according to claim 7, characterized in that, A fourth transverse groove and a fifth knife groove are provided on the second longitudinal tread block; One end of the fourth transverse groove communicates with the third longitudinal groove, and the other end communicates with the fifth knife groove; one end of the fifth knife groove communicates with the fourth longitudinal groove, and the other end communicates with the fourth transverse groove.
9. A special tread pattern for new energy buses in rainy and snowy days according to claim 8, characterized in that, A sixth knife groove is further provided on the second longitudinal tread block, and both ends of the sixth knife groove communicate with the third longitudinal groove and the fourth longitudinal groove respectively and intersect with the fourth transverse groove; Both the third transverse groove and the fourth transverse groove are arc-shaped and are centrosymmetrically distributed.
10. A special tire for new energy buses in rainy and snowy weather, including a tread surface, characterized in that, Both sides of the tread are connected to the shoulders, and the tread and the shoulders are provided with the special tire tread for new energy buses in rainy and snowy days as described in any one of claims 1 to 9.