Tread of non-pneumatic tire and non-pneumatic tire

Abstract

The utility model provides a tread of a non-pneumatic tire and the non-pneumatic tire, which belong to the field of tires, the tread of the non-pneumatic tire is of a spliced structure and comprises a plurality of tire blocks, and the tire blocks are fixed on the outer circumferential surface of the non-pneumatic tire through fasteners and are at least adjacent to another tire block along the axial direction and the circumferential direction of the non-pneumatic tire. The size of at least one end face of each tire block and the adjacent tire block is gradually reduced from the lower bottom to the upper end, the lower bottoms are tightly connected to form a pattern groove bottom, and a gap between the upper ends forms a pattern groove. The non-pneumatic tire solves the technical problem that patterns of a non-pneumatic tire in the prior art cannot be flexibly adjusted so that a tread and a mold need to be redesigned when the use environment changes, and has the characteristics of reducing the design and manufacturing cost, shortening the development period, improving the design and use flexibility and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of tires, and in particular relates to a tread of a non-pneumatic tire and the non-pneumatic tire. Background Art

[0002] In existing tire technology, traditional tires maintain their structure and elasticity by inflating, usually using air or other gases (such as nitrogen). However, when pneumatic tires are subjected to large external forces, they are prone to excessive wear or blowout, posing a safety hazard. In order to solve this problem, non-pneumatic tires came into being. Non-pneumatic tires adopt a brand-new structural design, eliminating the traditional inflatable part. Its main structure includes a split inner wheel, outer wheel, lateral brake parts, elastic support parts and tread (such as Figure 1 shown).

[0003] The tread in the prior art is mainly composed of a tread module, a base plate, a side plate and a locking member (such as Figure 2 The tread module is designed to match the width of the outer wheel, and features specific patterns to suit various road conditions. The base plate is located beneath the tread module to provide support, while the side plates are located on either side of the module and secured to the outer wheel using locking members.

[0004] However, this technology also has significant drawbacks. When the tire's operating environment changes and the tread module pattern needs to be adjusted to accommodate the new conditions, the tread module often needs to be redesigned and the corresponding molds redeveloped. This not only increases design and manufacturing costs, but also prolongs the development cycle and reduces design and operational flexibility. These issues limit the widespread application of non-pneumatic tires in diverse usage scenarios. Utility Model Content

[0005] The details of one or more embodiments of the present invention are set forth in the following drawings and description to make other features, objects, and advantages of the present application more readily apparent.

[0006] The utility model provides a non-pneumatic tire tread and a non-pneumatic tire thereof, which solves the technical problem in the prior art that the non-pneumatic tire cannot flexibly adjust the pattern so that the tread and mold need to be redesigned when the use environment changes. It has the characteristics of reducing design and manufacturing costs, shortening the development cycle, and improving design and use flexibility.

[0007] On one hand, the utility model discloses a tread of a non-pneumatic tire, which is a spliced ​​structure and includes a plurality of tire blocks, which are fixed to the outer circumferential surface of the non-pneumatic tire by fasteners. The tire blocks are adjacent to at least one other tire block in the axial and circumferential directions of the non-pneumatic tire, and at least one end face of each tire block adjacent to another tire block gradually shrinks in size from the lower bottom to the upper end, and the lower bottom of the end face is tightly connected to the lower bottom of the end face of the adjacent tire block to form a pattern groove bottom, and the gap between the upper end of the end face and the upper end of the end face of the adjacent tire block forms a pattern groove.

[0008] In some embodiments, at least one fastening and mounting hole is provided on the tire block, and a fastener passes through the fastening and mounting hole in a radial direction of the non-pneumatic tire to fix the tire block to the outer circumferential surface of the non-pneumatic tire.

[0009] In some embodiments, the tire block is provided with a mounting reinforcement plate that is injection-molded integrally with the tire block, and the mounting reinforcement plate is provided with a first through hole that matches the fastening mounting hole. The fastener passes through the fastening mounting hole and the first through hole to fix the tire block to the outer circumferential surface of the non-pneumatic tire.

[0010] In some embodiments, the shape of the mounting reinforcement plate matches the shape of the cross section of the tire block and is located at a central position inside the tire block.

[0011] In some embodiments, a plurality of rubber surface reinforcement plates are vertically provided on the installation reinforcement plate, a plurality of second through holes are provided on the rubber surface reinforcement plate, and the axes of the second through holes are parallel to the installation reinforcement plate.

[0012] In some embodiments, four rubber surface reinforcement plates are provided, and the four rubber surface reinforcement plates are respectively arranged around the installation reinforcement plate, with a gap left between two adjacent rubber surface reinforcement plates.

[0013] In some embodiments, the shape of the tire block is square, long strip, or other shapes customized according to the tread pattern design principles.

[0014] In some embodiments, the fasteners are bolts, screws or other removable mechanical fasteners.

[0015] On the other hand, the present invention further discloses a non-pneumatic tire, which includes the tread of the non-pneumatic tire mentioned above.

[0016] In some embodiments, the non-pneumatic tire further includes an outer wheel, the outer wheel is provided with a plurality of connection holes along the circumferential direction, and the fastener passes through the tread of the non-pneumatic tire and is detachably connected to the connection holes of the outer wheel.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] 1. This utility model discloses a non-pneumatic tire tread. This design utilizes a spliced ​​structure, with several tire blocks fixed to the tire's outer circumference. This not only effectively reduces tread production and maintenance costs, but also allows for the replacement of tire blocks or their arrangement to create different tread patterns based on varying usage requirements. This design, through the combination of differently arranged tire blocks, enables the non-pneumatic tire to adapt to a variety of complex road conditions, such as wet, slippery, icy, snowy, and muddy environments, thereby enhancing the non-pneumatic tire's versatility and adaptability.

[0019] 2. The installation method of the fasteners in the present invention is to fix the tire blocks to the outer circumferential surface of the non-pneumatic tire along the radial direction of the non-pneumatic tire. This installation method allows the fasteners themselves to bear axial tension or compression force, which can effectively reduce radial shear force, thereby enhancing the fastening effect and extending the service life of the fasteners; at the same time, the fasteners used are detachable mechanical fasteners such as bolts and screws, which allow for quick installation and removal of tire blocks, further simplifying the operation process of tread replacement, and can adjust the tread pattern and performance according to needs in a short time.

[0020] 3. The tire block disclosed in the present invention is provided with an injection-molded integral mounting reinforcement plate, which not only provides additional support for the tire block, but also enhances the overall structural strength of the tire block, thereby avoiding deformation or falling off of the tire block during long-term use.

[0021] 4. The present invention is provided with four rubber surface reinforcement plates vertically around the installation reinforcement plate, which can further enhance the strength of the tire block, and multiple second through holes are designed on the rubber surface reinforcement plate. In the process of casting and molding the tire block, the liquid rubber flows through the second through holes, thereby enhancing the adhesion between the tire block and the installation reinforcement plate, and effectively improving the durability and stability of the entire tread structure.

[0022] 5. The non-pneumatic tire disclosed in the present invention has a simple structure, is easy to maintain, and has high economic and practical value. It can also form different tread patterns according to different usage environments, such as changing from a longitudinal pattern with good quiet effect and strong comfort to a transverse pattern with strong driving force and braking force and adaptability to rainy and snowy weather, which greatly reduces design costs and time costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0024] Figure 1 It is a structural schematic diagram of a non-pneumatic tire in the prior art;

[0025] Figure 2 A schematic structural diagram of a tread of a non-pneumatic tire in the prior art;

[0026] Figure 3 A partial schematic diagram of the tread of a non-pneumatic tire provided by an embodiment of the present utility model;

[0027] Figure 4 Another partial schematic diagram of the tread of a non-pneumatic tire provided by an embodiment of the present utility model;

[0028] Figure 5 A schematic diagram of the structure of the longitudinal pattern of a non-pneumatic tire provided by an embodiment of the present utility model;

[0029] Figure 6 A schematic diagram of the structure of the transverse pattern of a non-pneumatic tire provided by an embodiment of the present utility model;

[0030] In the above figures: 1-tread; 11-tread block; 111-fastening mounting hole; 12-fastener; 13-mounting reinforcement plate; 131-first through hole; 14-rubber surface reinforcement plate; 141-second through hole; 15-tread module; 16-base plate; 17-side plate; 18-locking member; 2-outer wheel; 3-inner wheel; 4-lateral brake member; 5-elastic support member. DETAILED DESCRIPTION

[0031] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is described and illustrated below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the present invention and are not intended to limit the present invention. Based on the embodiments provided by the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0032] like Figure 1 and Figure 2 As shown, the main structure of the non-pneumatic tire in the prior art includes a split inner wheel 3, an outer wheel 2, a transverse brake member 4, an elastic support member 5 and a tread 1 (as shown in FIG. Figure 1 As shown), the tread 1 of the non-pneumatic tire in the prior art is composed of a tread module 15, a base plate 16, a side plate 17 and a locking member 18 (as shown Figure 2As shown, the width of the tread module 15 is consistent with the width of the outer wheel 2. The tread module 15 needs to be designed according to different usage environments, and the tread module 15 is provided with a specific pattern to adapt to various road conditions. The bottom plate 16 is provided below the tread module 15 to provide support, while the side plates 17 are provided on the left and right sides of the tread module 15 and fixed to the left and right sides of the outer wheel 2 by locking members. Although the tread 1 of the existing non-pneumatic tire is composed of multiple tread modules 15, such tread modules 15 cannot be arranged and combined to suit different usage environments. When the tread pattern needs to be changed to adapt to different usage environments, the tread module 15 needs to be redesigned, and the corresponding mold also needs to be redesigned and processed. Moreover, when a part of the tread 1 is worn, the entire tread module 15 needs to be replaced. Therefore, the tread 1 of this non-pneumatic tire not only has poor versatility and flexibility, but also greatly increases design costs and time costs.

[0033] The present invention provides a non-pneumatic tire tread 1, referring to Figures 3 to 6 As shown, the tread 1 of this non-pneumatic tire is a spliced ​​structure, comprising a plurality of blocks 11. Each block 11 is secured to the outer circumference of the non-pneumatic tire by fasteners 12. Each block 11 contacts at least one adjacent block in both the axial and circumferential directions of the tire. The end surface of each block 11 gradually tapers from its lower base to its upper end. The lower base is tightly connected to the lower base of the adjacent block 11, forming a groove base. A gap is left between the upper end and the upper end of the adjacent block 11, forming a groove. By combining multiple blocks 11 into a spliced ​​structure, the tread 1 of the non-pneumatic tire can be flexibly replaced according to the needs of different usage environments. This splicing method, i.e., the grooves formed by the combination of blocks 11, allows the non-pneumatic tire to have an appropriate tread pattern for different road conditions or climates, while ensuring the tire's wear resistance and grip. The blocks 11 can be arranged and combined to form different patterns, making the non-pneumatic tire more adaptable and reducing the cost of replacing the entire non-pneumatic tire. The tire blocks 11 in the present invention are highly replaceable, have a long service life, and have low maintenance costs; the tread pattern is flexible and adjustable, which helps to improve the grip and driving stability of non-pneumatic tires under different road conditions; by selecting appropriate arrangements and combinations of tire blocks 11, different tread patterns can be quickly customized according to the requirements of the use environment.

[0034] In some embodiments, according to the requirements of the vehicle use environment, such as Figure 5 As shown, the tire blocks 11 are spliced ​​together to form the tread 1 of a non-pneumatic tire with a longitudinal pattern. The main performance of this pattern structure is good quiet effect and strong comfort.

[0035] In some embodiments, when the use environment of the vehicle changes, the tire blocks 11 can be disassembled and reassembled in different combinations. Figure 5 The tread of the non-pneumatic tire with longitudinal pattern 1 is spliced ​​as Figure 6 The tread of the non-pneumatic tire with a transverse pattern 1 is used to improve driving force and braking force and is suitable for rainy and snowy weather.

[0036] Furthermore, at least one fastening mounting hole 111 is provided on the tire block 11, and a fastener 12 passes through the fastening mounting hole 111 in the radial direction of the non-pneumatic tire to secure the tire block 11 to the outer circumferential surface of the non-pneumatic tire. By providing the fastening mounting hole 111 on the tire block 11 and securing it radially with the fastener 13, a secure connection between the tire block 11 and the circumferential surface of the non-pneumatic tire can be ensured, thereby improving the fixing strength of the tire block 11. The radial penetration fastening method reduces the risk of displacement of the tire block 11 and increases the durability and impact resistance of the overall tread structure. The provision of the radial fastening mounting hole 111 makes the installation of the tire block 11 more secure and durable, reduces the risk of the tire block 11 loosening under different road conditions, extends the service life of the non-pneumatic tire, reduces maintenance frequency, and improves the cost-effectiveness and practicality of the non-pneumatic tire.

[0037] Furthermore, an integrally formed mounting reinforcement plate 13 is injection-molded inside the tire block 11. The mounting reinforcement plate 13 is provided with a first through hole 131 that matches the fastening mounting hole 111. The fastener 12 secures the tire block 11 to the outer circumferential surface of the non-pneumatic tire via the fastening mounting hole 111 and the first through hole 131. Providing the mounting reinforcement plate 13 inside the tire block 11 enhances the structural strength of the tire block 11, enabling it to withstand greater forces when secured. The first through hole 131 of the mounting reinforcement plate 13 allows the fastener 12 to better pass through the tire block 11 and connect to the outer circumferential surface of the non-pneumatic tire, thereby improving the overall connection strength and shock resistance. The design of the mounting reinforcement plate 13 of the present invention enhances the durability and stability of the tire block 11, prevents the tire block 11 from loosening or deforming due to road impact, and further extends the service life of the non-pneumatic tire.

[0038] In some embodiments, the number and positions of the fastening and mounting holes 111 and the first through holes 131 can be adjusted according to the size and usage requirements of the tire.

[0039] Furthermore, the shape of the mounting reinforcement plate 13 matches the cross-section of the tire block 11 and is centrally located within the tire block 11. Placing the mounting reinforcement plate 13 in the center of the tire block 11 and adopting a matching cross-sectional shape helps evenly distribute the forces acting on the tire block, improving the structural stability of the tire block 11 under load and preventing deformation or damage caused by uneven stress. This centrally located mounting reinforcement plate design allows the tire block 11 to withstand greater pressure, dissipating external impacts and further improving the tire tread's service life and durability.

[0040] Furthermore, a plurality of rubber surface reinforcement plates 14 are vertically provided on the mounting reinforcement plate 13, and a plurality of second through holes 141 are provided on the rubber surface reinforcement plate 14, the axes of which are parallel to the mounting reinforcement plate 13. The vertical arrangement of the rubber surface reinforcement plates 14 increases the structural strength of the tire block 11, and through the cooperation of the second through holes 141 and the mounting reinforcement plate 13, a multi-layer reinforcement structure is formed, which further enhances the durability and structural stability of the tire block 11. The second through holes 141 are designed to allow the circulation of liquid rubber to enhance the bonding between the tire block 11 and the mounting reinforcement plate 13. By vertically arranging the rubber surface reinforcement plate 14 on the mounting reinforcement plate 13 and designing a plurality of second through holes 141 on the rubber surface reinforcement plate 14, it is ensured that during the manufacturing process of the tire block 11, the liquid rubber can flow evenly through these second through holes 141, thereby achieving effective bonding between the tire block 11 and the mounting reinforcement plate 13 and the rubber surface reinforcement plate 14. This design improves the adhesion between the tire block 11 and the mounting reinforcement plate 13 and the rubber reinforcement plate 14, ensuring that the tire block 11 is not easily dislodged or moved during prolonged use. The support provided by the rubber reinforcement plate 14 further enhances the strength and durability of the tire block 11. The even distribution of liquid rubber prevents bubbles and uneven adhesion within the tire block 11, improving the overall quality of the product.

[0041] In some embodiments, the number and position of the rubber surface reinforcement plates 14 can be adjusted based on the size and shape of the tire block 11 to meet different design requirements. The number and diameter of the second through holes 141 can also be customized based on the desired rubber flow rate to optimize the bonding effect between the tire block 11 and the mounting reinforcement plate 13 and the rubber surface reinforcement plate 14.

[0042] Furthermore, four rubber surface reinforcement plates 14 are provided, and the four rubber surface reinforcement plates 14 are respectively provided around the installation reinforcement plate 13, with a gap left between two adjacent rubber surface reinforcement plates 14. By providing four rubber surface reinforcement plates 14 at the four edges of the installation reinforcement plate 13, multi-directional support for the tire block 11 is formed. This design can effectively enhance the stability of the tire block 11, better disperse external forces when subjected to force, and prevent the tire block 11 from being deformed or shifted by external forces during use. At the same time, leaving a gap between two adjacent rubber surface reinforcement plates 14 helps to adapt to thermal expansion and contraction, and prevent material fatigue or crack formation. The four rubber surface reinforcement plates 14 provide more comprehensive support, further enhancing the strength and durability of the tire block 11; and this structure can effectively improve the durability of the tire block 11 and reduce the risk of displacement or falling off of the tire block 11 due to external forces.

[0043] In some embodiments, the number and arrangement of the rubber-surface reinforcement plates 14 can be adjusted as needed, such as a triangular arrangement or a hexagonal arrangement, to adapt to special structures or force requirements and further improve overall stability.

[0044] Furthermore, the shape of the tire block 11 is square, elongated, or other shapes customized according to the tread pattern design principles. The present invention designs the shape of the tire block 11 so that it can better adapt to the different design requirements of the tread pattern. The square and elongated tire blocks 11 have good arrangement and combination characteristics and can be flexibly spliced ​​according to specific road surface requirements to form different tread patterns. The customized shape of the tire block 11 can be designed to suit specific road conditions based on the specific use environment of the tire, thereby improving the tire's grip and stability. Tire blocks 11 of different shapes can be flexibly selected according to actual needs to adapt to a variety of road conditions; customized shapes help optimize the tread pattern design and improve tire performance; through reasonable tire block 11 shape design, tire wear can be further reduced and its service life can be extended.

[0045] Furthermore, the fasteners 12 are bolts, screws, or other detachable mechanical fasteners for quickly installing and removing the tire blocks 11. The present invention achieves rapid installation and removal of the tire blocks 11 through detachable mechanical fasteners 12. Fasteners 12 such as bolts and screws can firmly fix the tire blocks 11 to the outer surface of the tire while being easy to remove. Users can replace the tire blocks 11 at any time according to actual needs and adjust the tread pattern to suit different usage scenarios and road conditions. At the same time, if a tire block 11 of the tread 1 is damaged, only the worn tire block 11 can be replaced without replacing the entire tread module 15, which greatly saves costs. The detachable design of the fasteners 12 makes the installation and removal of the tire blocks 11 faster and more convenient, improving the maintenance efficiency of the tire. Users can flexibly replace the tire blocks 11 according to different needs to adapt to different road conditions. The stable fixation of fasteners 12 such as bolts and screws ensures the firmness of the tire blocks 11 during use, reducing safety hazards caused by looseness.

[0046] The present invention also discloses a non-pneumatic tire, including the tread 1 of the non-pneumatic tire described above. The present invention combines the tread 1 design described above with the splicing structure of the tread 1 of the non-pneumatic tire, the detachable fastening method, and the stable connection between the tire blocks 11 and the mounting reinforcement plate 13 and the rubber surface reinforcement plate 14, so that the non-pneumatic tire can still provide high stability and durability when not inflated. The non-pneumatic tire reduces the risk of air leakage of pneumatic tires and improves the safety and reliability of non-pneumatic tires. The replaceable tire blocks 11 design makes the maintenance and replacement of the non-pneumatic tire more convenient, reducing the cost of use. The design of the spliced ​​tread 1 further enhances the durability and adaptability of the tread 1.

[0047] Furthermore, the non-pneumatic tire also includes an outer wheel 2, which is provided with a plurality of connection holes along the circumferential direction, and the fasteners 12 are detachably connected to the connection holes of the outer wheel 2 through the tread 1 of the non-pneumatic tire. The utility model ensures that the fasteners 12 can firmly fix the tread 1 of the non-pneumatic tire to the outer surface of the outer wheel 2 by designing a plurality of connection holes on the outer wheel 2. Through this detachable connection structure, a reliable fixed connection is formed between the tread 1 of the non-pneumatic tire and the non-pneumatic tire, and it is convenient for users to quickly and conveniently replace the tire blocks 11 when needed to form different tread patterns; the multi-point distribution of the connection holes makes the pressure distribution of the tread 1 more uniform, thereby increasing the service life of the tire; the detachable connection method allows users to flexibly replace the tire blocks 11 according to different needs, reducing the difficulty and cost of maintenance.

[0048] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0049] The above-described embodiments merely represent several implementations of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present utility model patent shall be determined by the appended claims.

Claims

1. A tread of a non-pneumatic tire, characterized in that: The tread of the non-pneumatic tire is a spliced ​​structure, including a plurality of tire blocks, which are fixed to the outer circumferential surface of the non-pneumatic tire by fasteners. The tire blocks are adjacent to at least another tire block in the axial and circumferential directions of the non-pneumatic tire. At least one end face of each tire block adjacent to another tire block gradually shrinks in size from the lower bottom to the upper end, and the lower bottom of the end face is tightly connected to the lower bottom of the end face of the adjacent tire block to form a pattern groove bottom, and the gap between the upper end of the end face and the upper end of the end face of the adjacent tire block forms a pattern groove.

2. The tread of the non-pneumatic tire according to claim 1, wherein: At least one fastening and mounting hole is provided on the tire block, and a fastener passes through the fastening and mounting hole along the radial direction of the non-pneumatic tire to fix the tire block to the outer circumferential surface of the non-pneumatic tire.

3. The tread of the non-pneumatic tire according to claim 2, wherein: The tire block is provided with a mounting reinforcement plate which is integrally formed with the tire block by injection molding. The mounting reinforcement plate is provided with a first through hole which matches the fastening mounting hole. The fastener passes through the fastening mounting hole and the first through hole to fix the tire block to the outer circumferential surface of the non-pneumatic tire.

4. The tread of the non-pneumatic tire according to claim 3, wherein: The shape of the mounting reinforcement plate matches the shape of the cross section of the tire block and is located at the center of the tire block.

5. The tread of the non-pneumatic tire according to claim 3 or 4, characterized in that: A plurality of rubber surface reinforcement plates are vertically arranged on the installation reinforcement plate. A plurality of second through holes are arranged on the rubber surface reinforcement plate. The axes of the second through holes are parallel to the installation reinforcement plate.

6. The tread of the non-pneumatic tire according to claim 5, wherein: There are four rubber surface reinforcement plates, which are respectively arranged around the installation reinforcement plate, and a gap is left between two adjacent rubber surface reinforcement plates.

7. The tread of the non-pneumatic tire according to claim 1, wherein: The tire blocks are in the shape of a square or a long strip.

8. The tread of the non-pneumatic tire according to claim 1, wherein: The fastener is a detachable mechanical fastener.

9. The tread of the non-pneumatic tire according to claim 8, wherein: The fasteners are bolts and screws.

10. A non-pneumatic tire, characterized in that: A tread comprising the non-pneumatic tire according to any one of claims 1 to 9.

11. The non-pneumatic tire according to claim 10, wherein: The non-pneumatic tire further comprises an outer wheel, which is provided with a plurality of connection holes along the circumferential direction. The fasteners pass through the tread of the non-pneumatic tire and are detachably connected to the connection holes of the outer wheel.

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