A kind of impact-resistant self-priming non-pneumatic tire

Abstract

The embodiment of the present invention discloses an impact-resistant self-priming non-pneumatic tire, comprising an inner ring and an outer ring arranged coaxially from the inside to the outside, multiple groups of radial support buffer components connected between the inner ring and the outer ring, and an annular support structure connected between at least partially adjacent two groups of the radial support buffer components; wherein each group of the radial support buffer components at least comprises a group of support bodies one end of which is correspondingly connected to the inner ring or the outer ring, and a self-priming airbag located between a group of the support bodies, or located in one of the support bodies; at least one one-way air inlet is formed on the self-priming airbag, and air enters the self-priming airbag through the one-way air inlet. Through the above technical scheme, the self-priming non-pneumatic tire of the present invention has the load-bearing capacity of a pneumatic tire, as well as the advantages of a non-pneumatic tire without the risk of tire blowout and air leakage and a long service life.

Description

Technical Field

[0001] The embodiments of the present invention relate to the technical field of non-pneumatic tire carcass structures, and in particular to an impact-resistant self-priming non-pneumatic tire. Background Art

[0002] At present, traditional rubber pneumatic tires are easily punctured and leaked, which poses a great safety hazard to the driving safety of the car, especially when a tire bursts at high speed, it is very likely to cause casualties. In order to overcome these defects, the concept of non-pneumatic tires was proposed and relevant research was carried out on it.

[0003] Non-pneumatic tires use elastic spokes or elastic spokes instead of inflation pressure as the tire support. Compared with traditional pneumatic tires, non-pneumatic tires have the advantages of no risk of tire blowout and air leakage, long life, easy molding and processing, etc. However, due to the lack of an inflatable inner tube, it causes loud noise during operation, poor shock absorption, and poor driving comfort; at the same time, since non-pneumatic tires use elastic spokes or spokes and other supporting structures, their load-bearing capacity is low and the speed cannot be too high; since the supporting structure is exposed to the outside, once foreign objects enter the interior during driving, it will easily cause the supporting structure to be damaged. Compared with traditional tires, non-pneumatic tires have the advantages of low rolling resistance, no risk of tire blowout and air leakage, long life, and easy molding and processing, but they still have the disadvantages of loud noise, poor shock absorption, poor driving comfort, low load-bearing capacity, easy damage to the supporting structure, and poor resilience. Summary of the invention

[0004] To this end, an embodiment of the present invention provides an impact-resistant self-priming non-pneumatic tire. In view of the shortcomings of existing non-pneumatic tires such as poor vibration damping, insufficient load-bearing capacity, easy damage to the supporting structure, and poor resilience, a staggered support structure is set up, and a self-priming air bag with a one-way air intake and a certain internal pressure is further introduced therein, so that the self-priming non-pneumatic tire has the load-bearing capacity of a pneumatic tire and the advantages of a non-pneumatic tire without the risk of blowout and air leakage and a long service life.

[0005] In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:

[0006] In one aspect of an embodiment of the present invention, there is provided an impact-resistant self-priming non-pneumatic tire, comprising an inner ring and an outer ring arranged coaxially from the inside to the outside, a plurality of radial support and buffer components connected between the inner ring and the outer ring, and an annular support structure connected between at least partially adjacent two groups of the radial support and buffer components; wherein:

[0007] Each group of the radial support and buffer components at least includes a group of support bodies, one end of which is correspondingly connected to the inner ring member or the outer ring member, and a self-priming airbag located between the group of support bodies or in one of the support bodies;

[0008] At least one one-way air inlet is formed on the self-priming airbag, and air enters the self-priming airbag through the one-way air inlet.

[0009] As a preferred solution of the present invention, a plurality of groups of radial support and buffer components are arranged at intervals along the circumferential direction;

[0010] The number of the radial support buffer components is 8-20.

[0011] As a preferred solution of the present invention, the support body includes a containing support member connected to the inner ring member, and a buffer belt structure connected to the outer ring member;

[0012] The accommodating support member is connected to the outer ring member, and an accommodating hole is formed in the accommodating support member, and the self-priming airbag is located in the accommodating hole.

[0013] As a preferred solution of the present invention, the buffer belt structure includes an arched member whose two ends are respectively connected to the inner wall of the outer ring member and protrudes away from the outer ring member, and a connecting column whose one end is connected to the arched member and the other end is connected to the end of the accommodating support member away from the inner ring member.

[0014] As a preferred solution of the present invention, the self-priming airbag is formed into a ladder-like column structure, and two end surfaces of the ladder-like column structure along the radial direction are formed into arc surfaces.

[0015] As a preferred embodiment of the present invention, the area of ​​the end surface of the self-priming airbag facing the inner ring is smaller than the area of ​​the end surface facing the outer ring; and,

[0016] The end surface of the self-priming airbag facing the inner ring is inwardly concave to form an inner arc surface;

[0017] The end surface of the self-inhalation airbag facing the outer ring member protrudes outward to form an outer arc surface.

[0018] As a preferred solution of the present invention, each of the two side walls of the self-priming airbag facing outwards is formed with a one-way air inlet, and the two one-way air inlets are centrally symmetrically arranged;

[0019] The one-way air inlet is a deformable closed structure.

[0020] As a preferred solution of the present invention, the one-way air inlet is formed into a crescent structure, and the curvature of the one-way air inlet on a side close to the inner ring is smaller than the curvature of the one-way air inlet on a side close to the outer ring.

[0021] As a preferred solution of the present invention, the two inner walls of the one-way air inlet are inclined obliquely downward from the outside to the inside toward the end close to the outer ring member.

[0022] As a preferred solution of the present invention, the annular support structure includes at least one group of connecting plate groups, each group of the connecting plate groups includes a plurality of transverse plates connected between two adjacent radial support buffer assemblies; and,

[0023] The vertical distances between the plurality of transverse plates in each group of the connecting plate groups and the axis of the inner ring member or the outer ring member are the same.

[0024] As a preferred solution of the present invention, the inner ring, the outer ring, the radial support buffer assembly and the annular support structure are an integrally formed structure.

[0025] As a preferred solution of the present invention, the number of the connecting plate groups is 1 to 4, and the multiple connecting plate groups are arranged at intervals along the radial direction;

[0026] Every two adjacent radial support buffer components are connected to the transverse plate.

[0027] The embodiments of the present invention have the following advantages:

[0028] Through the staggered arrangement of the radial support buffer assembly and the annular support structure, the entire tire structure has the good load-bearing capacity of an inflatable tire, and since the overall structure does not require the use of an external force to assist the inflation structure, it also has the advantages of a non-inflated tire without the risk of tire blowout and air leakage and a long service life. At the same time, a self-priming airbag with a one-way air inlet and a set pressure value inside is further provided, and then during driving, based on the change in driving state, the one-way air inlet and closure and one-way air intake are realized, thereby adapting to the driving needs of the vehicle during driving and maintaining good and effective resilience and buffering performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the implementation methods of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the implementation methods or the description of the prior art. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0030] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0031] Figure 1 A schematic structural diagram of a self-priming non-pneumatic tire provided by an embodiment of the present invention;

[0032] Figure 2 A front view of a self-aspirating non-pneumatic tire provided by an embodiment of the present invention;

[0033] Figure 3 A schematic diagram of a partial structure of a self-priming non-pneumatic tire provided in an embodiment of the present invention;

[0034] Figure 4 A schematic diagram of the structure of a self-priming airbag provided in an embodiment of the present invention;

[0035] Figure 5 A schematic diagram of the internal structure of a self-priming airbag provided in an embodiment of the present invention;

[0036] Figure 6 A schematic diagram of the structure of an arch member provided in an embodiment of the present invention;

[0037] Figure 7 A partial cross-sectional view of a one-way air inlet provided in an embodiment of the present invention;

[0038] Figure 8 A schematic diagram of a partial structure of a radial support buffer assembly provided in an embodiment of the present invention;

[0039] Fig. 9 A schematic diagram of the partial structure of another radial support buffer assembly provided in an embodiment of the present invention.

[0040] In the figure:

[0041] 1-inner ring; 2-outer ring; 3-radial support buffer assembly; 4-annular support structure;

[0042] 31-self-priming airbag; 32-one-way air inlet; 33-accommodating support member; 34-buffer belt structure;

[0043] 341-arched member; 342-connecting column;

[0044] 41-Horizontal board. DETAILED DESCRIPTION

[0045] The following is a description of the implementation of the present invention by specific embodiments. People familiar with the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0046] The specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0047] like Figure 1 and- Fig. 9 As shown, the present invention provides an impact-resistant self-priming non-pneumatic tire, which is mainly composed of an inner ring 1, a support body, an annular support structure 4, a self-priming airbag 31, a buffer belt structure 34 and an outer ring 2, wherein the inner ring 1, the support body, the annular support structure 4, the self-priming airbag 31, the buffer belt structure 34 and the outer ring 2 are an integrated structure. The radial support buffer assembly 3 is a structure including the self-priming airbag 31.

[0048] In a specific embodiment, Figure 1 and Figure 2 As shown, the whole structure extends in the radial direction and cooperates with the annular support structure 4 to form a spider web structure. Through such a setting, the support structure of the whole bracket is similar to a spider web structure. The spider web structure makes it have greater rigidity, which can improve the overall bearing capacity of the tire and extend the service life of the tire. At the same time, the spider web structure composed of the radial support buffer component 3 and the annular support structure 4 is connected between the inner ring 1 and the outer ring 2, replacing the compressed air in the pneumatic tire, avoiding the danger of puncture and tire blowout when the vehicle is driving, and improving the reliability and safety of the tire.

[0049] Furthermore, the following is further explained by constructing a data model of the self-priming non-pneumatic tire provided by the present invention:

[0050] Specifically, in the self-priming non-pneumatic tire, the number of radial support buffer assemblies 3 is set to m, the number of groups of transverse plates 41 in the annular support structure 4 is set to n (i.e., n groups of connecting plate groups are formed), the radius of the inner ring member 1 is r, and the radius of the outer ring member 2 is R. The angle between two adjacent radial buffer assemblies 3 is θ, and the radial spacing between two transverse plates 41 in the same radial direction (i.e., the distance between two adjacent connecting plate groups) is d.

[0051] Based on this, the angle θ between two adjacent radial buffer components 3 and the radial spacing d between two transverse plates 41 in the same radial direction can be calculated by the following formula:

[0052]

[0053] It should be noted that the premise for calculating d here using the above formula is that the distances between two adjacent groups of connecting plates in the radial direction are the same.

[0054] As explained above, the spider web structure is composed of two parts: a plurality of radial support buffer components 3 and a plurality of annular support structures 4, wherein the radial support buffer components 3 are radially distributed around the inner ring member 1, and a specific radial support buffer component 3 is connected to the inner ring member 1 and radially distributed around the inner ring member 1. At the same time, each radial support buffer component 3 further includes a accommodating support member 33 connected to the inner ring member 1 and a buffer belt structure 34 connected to the outer ring member 2. The annular support structure 4 is composed of a plurality of groups of transverse plates 41, and each group of transverse plates 41 is located in the same annular direction, and in order to facilitate the molding of the tire as much as possible, each transverse plate 41 here can be a straight plate, and may not be made into a curved state. The number of the plurality of groups of transverse plates 41 here can be selected according to actual conditions, for example, Figure 1 and Figure 2 As shown, in a specific embodiment of the present invention, a structure of three groups of transverse plates 41 is adopted. Specifically, all transverse plates 41 are distributed in a flat plate shape and connect all radial support buffer components 3. Further, each transverse plate 41 is connected between two adjacent radial support buffer components 3, and multiple transverse plates 41 can be connected between two adjacent radial support buffer components 3, and each transverse plate 41 has a different distance from the axis of the inner ring 1. Through such an arrangement, a relatively more stable spider web structure can be formed.

[0055] Furthermore, the number of the radial support buffer components 3 of the present invention ranges from 8 to 20, and the number of layers of the annular support structure 4 ranges from 1 to 4 (i.e., the number of the cross plates 41 connected between every two radial support buffer components 3 is between 1 and 4). Figure 1 and Figure 2 As shown, the number of radial support buffer components 3 is selected to be 15, and the number of layers of the annular support structure 4 is 3.

[0056] Furthermore, each radial support buffer assembly 3 further includes a self-priming airbag 31, wherein the self-priming airbag 31 is located in the middle of the radial support buffer assembly 3, and the self-priming airbag 31 is in a trapezoidal column shape. Figure 8 and Fig. 9 , which are schematic diagrams of the structure of the radial support buffer assembly 3 in two main viewing directions. It should be noted that: Figure 8 and Fig. 9 The radial support buffer components 3 shown can all be an integrally formed structure, which will not be described in detail here.

[0057] Furthermore, there are arc-shaped one-way air inlets 32 on the two trapezoidal sides of the self-priming airbag 31, and the two one-way air inlets 32 are symmetrically distributed about the midpoint of the cylindrical structure axis of the self-priming airbag 31, and a standard atmospheric pressure exists in the self-priming airbag 31.

[0058] Furthermore, the several self-priming airbags 31 described in the present invention are arranged in a circular array, and the number of the self-priming airbags 31 is between 8 and 20 (preferably, the number of the self-priming airbags 31 is consistent with the number of the radial support buffer assembly 3, that is, each radial support buffer assembly 3 is provided with a self-priming airbag 31, and the self-priming airbag 31 can be a part of the radial support buffer assembly 3, that is, the radial support buffer assembly 3 is integrally formed as a whole. For the convenience of explanation, it can be understood here that the radial support buffer assembly 3 has a receiving hole, and the self-priming airbag 31 is placed in the receiving hole and is integrated into the surrounding edge around the receiving hole). In the present embodiment, the number of the selected self-priming airbags 31 is 15, and each self-priming airbag 31 is distributed on the radial support buffer assembly 3.

[0059] Furthermore, the self-priming airbag 31 described in the present invention increases the cushioning performance and resilience performance of the wheel. The specific principle is that when the vehicle is driving, the self-priming airbag 31 located below the inner ring 1 is compressed due to the gravity of the vehicle itself, and at the same time, the arc-shaped one-way air inlet 32 ​​of the self-priming airbag 31 is sealed due to the compression deformation of the self-priming airbag 31. At this time, since there is a standard atmospheric pressure buffer in the self-priming airbag 31, the compression deformation of the wheel is reduced; at the same time, when the wheel turns a certain angle, the previously compressed self-priming airbag 31 is no longer compressed, and the one-way air inlet 32 ​​of the self-priming airbag 31 is opened. The compressed self-priming airbag 31 can automatically inhale air, so that it quickly returns to the previous standard atmospheric pressure, thereby increasing the resilience of the wheel. It should be noted that in order to avoid the occurrence of problems such as the internal gas pushing the one-way air inlet 32 ​​outward due to the influence of pressure during the compression process, such as forcibly squeezing out a certain opening, Figure 7 As shown, the two inner walls of the one-way air inlet 32 ​​are inclined downward from the outside to the inside toward the end close to the outer ring 2. Figure 7 As shown, the right side is the interior of the self-priming airbag 31. When squeezed, the two side walls are brought close and the one-way air inlet 32 ​​is closed. The gas inside the self-priming airbag 31 is squeezed from left to right under pressure, and pressure from right to left is generated on the right side. Due to the mutual stop between the two side walls, the one-way air inlet 32 ​​will not be easily squeezed open.

[0060] Further, each buffer strip structure 34 described in the present invention comprises an arch 341 and a connecting column 342 sequentially formed on the outer ring 2, the top of each arch 341 is connected to the connecting column 342, and the other end of the connecting column 342 is further connected to the accommodating support 33, and the two bottom ends of the arch 341 are connected to the inner surface of the outer ring 2, and a plurality of buffer strip structures 34 are distributed in a circumferential array, and the number of the buffer strip structures 34 is between 8 and 20. In this example, 15 buffer strip structures 34 are selected.

[0061] Furthermore, the buffer strip structure 34 of the present invention further increases the buffering performance of the tire and enables the external excitation received by the outer ring 2 to be uniformly transmitted to the inner ring 1 .

[0062] The inner ring 1, outer ring 2, radial support buffer assembly 3 (including self-priming airbag 31) and annular support structure 4 in a self-priming non-pneumatic tire with a spider web structure of the present invention are an integrated structure, and its processing and molding scheme can adopt polyurethane material injection or casting for one-time molding. The molding method is simple, the production efficiency is high, and the product quality is easy to ensure.

[0063] Based on the above design, the technical solution of the present invention has the following beneficial effects:

[0064] The radial support buffer assembly 3 and the annular support structure 4 adopted by the tire are staggered and matched as a whole to form a spider web support structure, which is obtained by imitating the "spider web" structure. This structure enables the tire to have the load-bearing capacity of an inflatable tire and the advantages of a non-inflated tire without the risk of tire blowout and air leakage and long service life. At the same time, a trapezoidal columnar self-priming airbag 31 is provided in the middle part of the radial support buffer assembly 3, and there is a circular arc-shaped one-way air inlet 32 ​​on the trapezoidal side of the self-priming airbag 31, so that a standard atmospheric pressure exists in the self-priming airbag 31. When the vehicle is driving, the tire is compressed and deformed, causing the circular arc-shaped one-way air inlet 32 ​​on the self-priming airbag 31 to close. The existence of a standard atmospheric pressure in the closed self-priming airbag 31 enhances the resilience and buffering performance of the tire. Furthermore, there is a buffer belt structure 34 on the inner side of the outer ring 1, and the buffer belt structure 34 is composed of at least a plurality of arched parts 341, which further increases the buffering performance of the tire and makes the external excitation of the tire outer tread evenly transmitted to the inner ring 1. As a result, the self-priming non-pneumatic tire of the present invention has the advantages of puncture resistance, long life, strong load-bearing capacity, good resilience, strong buffering performance, etc., and is completely suitable for the driving needs of vehicles on daily roads.

[0065] Although the present invention has been described in detail above by general description and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the present invention. Therefore, these modifications or improvements made without departing from the spirit of the present invention all belong to the scope of protection claimed by the present invention.

Claims

1. An impact-resistant self-priming non-pneumatic tire, characterized in that: The invention comprises an inner ring member (1) and an outer ring member (2) which are coaxially arranged from the inside to the outside, a plurality of groups of radial support and buffer components (3) connected between the inner ring member (1) and the outer ring member (2), and an annular support structure (4) connected between at least two adjacent groups of the radial support and buffer components (3); wherein: Each group of the radial support buffer components (3) at least comprises a group of support bodies, one end of which is correspondingly connected to the inner ring member (1) or the outer ring member (2), and a self-priming airbag (31) located between the group of support bodies or located in one of the support bodies; At least one one-way air inlet (32) is formed on the self-priming airbag (31), and external air enters the self-priming airbag (31) through the one-way air inlet (32).

2. The impact-resistant self-priming non-pneumatic tire according to claim 1, characterized in that: A plurality of groups of radial support and buffer components (3) are arranged at intervals along the circumferential direction; The number of the radial support buffer components (3) is 8-20.

3. An impact-resistant self-priming non-pneumatic tire according to claim 1 or 2, characterized in that: The support body comprises a containing support member (33) connected to the inner ring member (1), and a buffer belt structure (34) connected to the outer ring member (2); The accommodating support member (33) is connected to the outer ring member (2), and a accommodating hole is formed in the accommodating support member (33), and the self-priming airbag (31) is located in the accommodating hole.

4. The impact-resistant self-priming non-pneumatic tire according to claim 3, characterized in that: The buffer belt structure (34) comprises an arched member (341) whose two ends are respectively connected to the inner wall of the outer ring member (2) and protrudes away from the outer ring member (2), and a connecting column (342) connected to the arched member (341) at one end and connected to the end of the accommodating support member (33) away from the inner ring member (1) at the other end.

5. The impact-resistant self-priming non-pneumatic tire according to claim 1 or 2, characterized in that: The self-priming airbag (31) is formed into a ladder-like column structure, and two end surfaces in the ladder-like column structure along the radial direction are formed into arc surfaces.

6. The impact-resistant self-priming non-pneumatic tire according to claim 5, characterized in that: The area of ​​the end surface of the self-priming airbag (31) facing the inner ring member (1) is smaller than the area of ​​the end surface facing the outer ring member (2); and The end surface of the self-priming airbag (31) facing the inner ring member (1) is inwardly recessed to form an inner arc surface; The end surface of the self-priming airbag (31) facing the outer ring member (2) is outwardly convex to form an outer arc surface.

7. The impact-resistant self-priming non-pneumatic tire according to claim 5, characterized in that: The two side walls of the self-priming airbag (31) facing outward are each formed with a one-way air inlet (32), and the two one-way air inlets (32) are centrally symmetrically arranged; The one-way air inlet (32) is a deformable closed structure.

8. The impact-resistant self-priming non-pneumatic tire according to claim 7, characterized in that: The one-way air inlet (32) is formed into a crescent structure, and the curvature of the one-way air inlet (32) on the side close to the inner ring member (1) is smaller than the curvature of the one-way air inlet (32) on the side close to the outer ring member (2).

9. The impact-resistant self-priming non-pneumatic tire according to claim 7, characterized in that: The two inner walls of the one-way air inlet (32) are inclined downward from the outside to the inside toward an end close to the outer ring member (2).

10. The impact-resistant self-priming non-pneumatic tire according to claim 1 or 2, characterized in that: The annular support structure (4) comprises at least one group of connecting plate groups, each group of the connecting plate groups comprises a plurality of transverse plates (41) connected between two adjacent radial support buffer assemblies (3); and, The vertical distances between the plurality of transverse plates (41) in each group of the connecting plates and the axis of the inner ring member (1) or the outer ring member (2) are the same.

11. The impact-resistant self-priming non-pneumatic tire according to claim 10, characterized in that: The inner ring component (1), the outer ring component (2), the radial support buffer component (3) and the annular support structure (4) are an integrally formed structure.

12. The impact-resistant self-priming non-pneumatic tire according to claim 10, characterized in that: The number of the connecting plate groups is 1 to 4, and the connecting plate groups are arranged at intervals along the radial direction; Every two adjacent radial support buffer components (3) are connected to the transverse plate (41).

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