Anti-puncturing rubber tire

Abstract

The utility model discloses an anti-puncture rubber tire, which comprises a main tire and an outer-layer rubber tread, the outer-layer rubber tread is positioned on the periphery of the main tire, the main tire is connected with the outer-layer rubber tread through a plurality of groups of spokes, the main tire comprises a tread part, an inner layer is arranged on the inner side surface of the tread part, and an outer layer is arranged on the outer side surface of the tread part. A sealant layer is filled between the inner layer and the inner side surface of the tread part, and the inner layer comprises a dividing strip assembly; the outer-layer rubber tread is in contact with the ground, and a gap formed by the avoiding cavity is formed between the outer-layer rubber tread and the main tire, so that a sharp object is blocked by the outer-layer rubber tread when being punctured into the outer-layer rubber tread and is not easy to puncture into the tread part of the main tire, and the puncture prevention of the main tire is realized; the self-repairing of the tire is realized by the sealant layer depending on the viscosity of the sealant layer; and the sealant layers are filled in the multiple groups of separation cavities in a split manner, so that the influence of the mobility of the sealant layers on the dynamic balance of the tire is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of tires, in particular to a puncture-proof rubber tire. Background Art

[0002] Tires are circular elastic rubber products that roll on the ground and are installed on various vehicles or machines. Tires are usually installed on metal rims, which can support the vehicle body, buffer external impacts, achieve contact with the road surface and ensure the driving performance of the vehicle. Tires are often used under complex and harsh conditions. They are subjected to various deformations, loads, forces, and high and low temperature effects when driving, so they must have high load-bearing performance, traction performance, and buffering performance. At the same time, they are also required to have high wear resistance and flex resistance, as well as low rolling resistance and heat generation. Half of the world's rubber consumption is used in tire production.

[0003] Existing puncture prevention methods for rubber tires are mostly to apply a sealant layer on the inner side of the tire to achieve self-repair and puncture prevention. However, the sealant layer has a certain fluidity, which will affect the dynamic balance of the tire to a certain extent, and when foreign objects larger than five millimeters puncture the tire, it is difficult to achieve self-repair. Summary of the invention

[0004] The utility model aims to provide a puncture-proof rubber tire to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a puncture-proof rubber tire, comprising a main tire and an outer rubber tread, wherein the outer rubber tread is located at the periphery of the main tire, and the main tire and the outer rubber tread are connected by a plurality of groups of spokes, the main tire comprises a tread portion, an inner layer is arranged on the inner side surface of the tread portion, a sealant layer is filled between the inner layer and the inner side surface of the tread portion, and the inner layer comprises a separator strip assembly.

[0006] Wherein, the dividing strip assembly is fixedly arranged on the inner side surface of the tread portion.

[0007] Wherein, the dividing strip assembly comprises a plurality of groups of transverse dividing strips and a plurality of groups of longitudinal dividing strips, and the plurality of groups of transverse dividing strips and the plurality of groups of longitudinal dividing strips are cross-distributed.

[0008] Wherein, a plurality of groups of separation cavities are formed between the plurality of groups of transverse separation strips and the plurality of groups of longitudinal separation strips.

[0009] Wherein, the sealant layer is filled in a plurality of groups of the separation cavities.

[0010] The spokes are evenly distributed along the circumferential direction of the outer rubber tread.

[0011] Wherein, a plurality of avoidance chambers are formed between the wheel spokes, the outer rubber tread and the tread portion.

[0012] Wherein, the main tire includes a tire sidewall portion.

[0013] Wherein, the main tire includes a tire lip portion.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The outer rubber tread of the utility model contacts the ground. When there are sharp objects on the ground, the sharp objects first contact the outer rubber tread and penetrate into the outer rubber tread. Since there is a gap formed by an avoidance chamber between the outer rubber tread and the main tire, the sharp objects are blocked by the outer rubber tread when penetrating into the outer rubber tread and will not easily penetrate into the tread portion of the main tire, thereby achieving puncture prevention for the main tire. The sealant layer relies on its own viscosity to achieve self-repair of the tire and achieve puncture prevention.

[0016] The sealant layer of the utility model is filled in multiple groups of separation cavities separately, which together constitute a sealant anti-puncture surface. The sealant layer is separated and limited by the multiple groups of separation cavities. The fluidity of the sealant layer is reduced without affecting the use effect of the sealant layer, thereby reducing the influence of the sealant layer's own fluidity on the dynamic balance of the tire and improving driving stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model;

[0018] Figure 2 It is a cross-sectional view of the tread portion of the utility model;

[0019] Figure 3 This is a schematic diagram of the piercing of a sharp object of the utility model;

[0020] Figure 4 It is a structural schematic diagram of the partition bar assembly and the partition cavity of the utility model.

[0021] In the figure: 1. main tire; 2. outer rubber tread; 3. spokes; 4. inner layer; 5. sealant layer; 11. tread portion; 12. sidewall portion; 13. lip portion; 31. avoidance chamber; 41. separator strip assembly; 411. transverse separator strip; 412. longitudinal separator strip; 413. separator chamber. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-4 The utility model provides a technical solution: an anti-puncture rubber tire, comprising a main tire 1 and an outer rubber tread 2, the outer rubber tread 2 is located at the periphery of the main tire 1, and the main tire 1 and the outer rubber tread 2 are connected by a plurality of spokes 3, the main tire 1 comprises a tread portion 11, an inner layer 4 is arranged on the inner side of the tread portion 11, a sealant layer 5 is filled between the inner layer 4 and the inner side of the tread portion 11, and the inner layer 4 comprises a separator strip assembly 41.

[0024] Among them, the main tire 1 is used as the main tire structure, and the outer rubber tread 2 is used as the outer protective tire. The outer rubber tread 2 is in contact with the ground. When there are sharp objects on the ground, the sharp objects first contact with the outer rubber tread 2 and penetrate into the outer rubber tread 2. Due to the gap between the outer rubber tread 2 and the main tire 1, the sharp objects are blocked by the outer rubber tread 2 when penetrating into the outer rubber tread 2, and will not easily penetrate into the tread portion 11 of the main tire 1, thereby realizing the puncture protection of the main tire 1 and improving the puncture protection effect of the main tire 1.

[0025] Among them, the multiple groups of spokes 3 connecting the tread portion 11 and the outer rubber tread 2 are polyurethane spokes 3, which have a certain elasticity. When driving, the outermost outer rubber tread 2 will disperse the pressure to the elastic polyurethane spokes 3, and through the bendable and elastically deformable spokes 3, shock absorption and buffering during driving are achieved.

[0026] Among them, since there is no air cavity structure on the outer rubber tread 2, when a sharp object pierces the outer rubber tread 2, it will not affect the normal driving of the tire. After the sharp object is pulled out, it will not affect the normal driving of the tire. There is no need to repair the tire, and it can withstand the piercing of sharp objects exceeding five millimeters.

[0027] The partition strip assembly 41 is fixedly disposed on the inner side surface of the tread portion 11 .

[0028] The partition bar assembly 41 includes a plurality of groups of transverse partition bars 411 and a plurality of groups of longitudinal partition bars 412 , and the plurality of groups of transverse partition bars 411 and the plurality of groups of longitudinal partition bars 412 are distributed in a cross-type manner.

[0029] A plurality of partition cavities 413 are formed between the plurality of transverse partition strips 411 and the plurality of longitudinal partition strips 412 .

[0030] The sealant layer 5 is filled in the plurality of partition cavities 413 .

[0031] Among them, the sealant layer 5 is filled in multiple groups of separation cavities 413 separately, and together constitute a sealant anti-puncture surface. The sealant layer 5 is separated and limited by the multiple groups of separation cavities 413. While not affecting the use effect of the sealant layer 5, the fluidity of the sealant layer 5 is reduced, thereby reducing the influence of the sealant layer 5 on the dynamic balance of the tire due to its own fluidity and improving driving stability.

[0032] If the spike is long and accidentally pierces the tread portion 11 of the main tire 1, Figure 3 As shown, the sealant layer 5 has a strong viscosity. When a sharp object from the outside punctures the tire, the sealant layer 5 will wrap the sharp object to prevent gas leakage from the gap. When the sharp object is pulled out, the sealant layer 5 has fluidity and can quickly enter the punctured hole, thereby realizing self-repair of the tire and achieving puncture prevention.

[0033] The spokes 3 are evenly distributed along the circumferential direction of the outer rubber tread 2 , and the outermost outer rubber tread 2 disperses the pressure onto the elastic polyurethane spokes 3 .

[0034] Among them, multiple groups of avoidance chambers 31 are formed between the spokes 3, the outer rubber tread 2 and the tread portion 11, and the multiple groups of avoidance chambers 31 separate the outer rubber tread 2 from the tread portion 11. When a sharp object pierces the outer rubber tread 2, the sharp part of the sharp object will be trapped in the avoidance chamber 31, which will not affect the tire and play an anti-puncture effect.

[0035] The main tire 1 includes a tread portion 12, and the tread portion 12 plays a supporting role.

[0036] The main tire 1 includes a bead portion 13, and the wire ring of the bead portion 13 can firmly fix the tire on the rim so that they are combined together.

[0037] Working principle: the main tire 1 is used as the main tire structure, and the outer rubber tread 2 is used as the outer protective tire. The outer rubber tread 2 contacts the ground. When there is a sharp object on the ground, the sharp object first contacts the outer rubber tread 2 and penetrates into the outer rubber tread 2. Due to the gap formed by the avoidance chamber 31 between the outer rubber tread 2 and the main tire 1, the sharp object is blocked by the outer rubber tread 2 when penetrating into the outer rubber tread 2, and will not easily penetrate into the tread portion 11 of the main tire 1. If the sharp object is long and accidentally penetrates into the tread portion 11 of the main tire 1, as shown in FIG. Figure 3As shown, the sealant layer 5 has a strong viscosity. When a sharp object from the outside punctures the tire, the sealant layer 5 will wrap the sharp object to prevent gas leakage from the gap. When the sharp object is pulled out, the sealant layer 5 has fluidity and can quickly enter the punctured hole, thereby realizing self-repair of the tire and preventing puncture. The sealant layer 5 is divided and filled in multiple groups of separation chambers 413 to jointly constitute a sealant anti-puncture surface. The sealant layer 5 is separated and limited by the multiple groups of separation chambers 413. While not affecting the use effect of the sealant layer 5, the fluidity of the sealant layer 5 is reduced, thereby reducing the influence of the sealant layer 5 on the dynamic balance of the tire due to its own fluidity and improving driving stability.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A puncture-resistant rubber tire, comprising a main tire (1) and an outer rubber tread (2), characterized in that: The outer rubber tread (2) is located on the periphery of the main tire (1), and the main tire (1) and the outer rubber tread (2) are connected via a plurality of spokes (3). The main tire (1) comprises a tread portion (11), an inner layer (4) is arranged on the inner side surface of the tread portion (11), a sealing rubber layer (5) is filled between the inner layer (4) and the inner side surface of the tread portion (11), and the inner layer (4) comprises a separator strip assembly (41).

2. The puncture-resistant rubber tire according to claim 1, characterized in that: The dividing strip assembly (41) is fixedly arranged on the inner side surface of the tread portion (11).

3. The puncture-resistant rubber tire according to claim 2, characterized in that: The dividing strip assembly (41) comprises a plurality of groups of transverse dividing strips (411) and a plurality of groups of longitudinal dividing strips (412), wherein the plurality of groups of transverse dividing strips (411) and the plurality of groups of longitudinal dividing strips (412) are distributed in a cross-type manner.

4. The puncture-resistant rubber tire according to claim 3, characterized in that: A plurality of groups of separation cavities (413) are formed between the plurality of groups of transverse separation strips (411) and the plurality of groups of longitudinal separation strips (412).

5. The puncture-resistant rubber tire according to claim 4, characterized in that: The sealant layer (5) is filled in the multiple groups of separation cavities (413).

6. The puncture-resistant rubber tire according to claim 1, characterized in that: The spokes (3) are evenly spaced and distributed along the circumferential direction of the outer rubber tread (2).

7. The puncture-resistant rubber tire according to claim 1, characterized in that: A plurality of avoidance chambers (31) are formed between the wheel spokes (3), the outer rubber tread (2) and the tread portion (11).

8. The puncture-resistant rubber tire according to claim 1, characterized in that: The main tire (1) comprises a tire sidewall portion (12).

9. The puncture-resistant rubber tire according to claim 1, characterized in that: The main tire (1) comprises a tire lip portion (13).

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