Vacuum tire

Abstract

The utility model relates to the technical field of tires, in particular to a vacuum tire which comprises a tire body, a tire cap belted layer and a tire body layer are arranged in the tire body, the tire body layer is located in the tire cap belted layer, the tire cap belted layer comprises two cord thread layers arranged from inside to outside, and the cord thread layers are arranged between the two cord thread layers. A rubber base body is connected between the two cord thread layers, the tire further comprises a plurality of connecting strips arranged at intervals in the width direction of the tire body, and the connecting strips are of a wave structure, penetrate through the rubber base body and the two cord thread layers and are suitable for fixedly connecting the rubber base body and the two cord thread layers; the cord thread layer is formed by weaving a plurality of steel wire flat strips, a plurality of first tensile fiber flat strips and a plurality of second tensile fiber flat strips. By adopting the mode, the vacuum tire disclosed by the utility model has the advantages that the service life is prolonged, and the bearing capacity is increased.

Description

TECHNICAL FIELD

[0001] The utility model relates to tire technical field, in particular to a vacuum tire. BACKGROUND

[0002] The vacuum tire is a kind of tire type widely used on vehicles such as cars and motorcycles. The vacuum tire has no traditional inner tube, and the tire itself is directly sealed with the rim to form a closed space, and the inside of the tire is filled with compressed air. The air-tight layer of the tire is made of butyl rubber and other materials, which can effectively prevent gas leakage, and the carcass structure is usually composed of multiple layers of cord layers and crown belt layers to provide sufficient strength and stability. The crown belt layer is usually composed of a steel wire cord layer or other high-strength materials to increase the rigidity and stability of the crown.

[0003] For the related technology in the above, the inventor finds that the crown belt layer is composed of a steel wire cord layer and a fiber cord layer, which is easy to make the external force not quickly transmitted between the steel wire cord layer and the fiber cord layer, resulting in uneven stress of the steel wire cord layer and the fiber cord layer, thereby causing the local stress of the tire to be too large and damaged, shortening the service life of the tire, and the steel wire cord layer and the fiber cord layer cannot form an integral structure, reducing the carrying capacity of the tire. SUMMARY

[0004] The technical problem solved by the utility model is to provide a vacuum tire that prolongs the service life and increases the carrying capacity.

[0005] To solve the above technical problems, one technical scheme of the utility model is to provide a vacuum tire, comprising: a tire body, the tire body is provided with a crown belt layer and a carcass layer inside, the carcass layer is located inside the crown belt layer, the crown belt layer comprises two cord layers arranged from inside to outside, a rubber matrix is connected between the two cord layers, and a plurality of connecting strips are arranged along the width direction of the tire body; The connecting strip is in a wave structure and penetrates through the rubber matrix and the two cord layers, and is suitable for fixedly connecting the rubber matrix and the two cord layers.

[0006] The cord layer is composed of a plurality of steel wire flat strips, a plurality of first tensile fiber flat strips and a plurality of second tensile fiber flat strips.

[0007] By adopting the technical scheme, when the vacuum tire is installed on the wheel hub, the vacuum tire is filled with appropriate gas, the crown belt layer comprises two cord layers, the two cord layers are connected through the rubber matrix, and the connecting strip in the wave structure penetrates through the rubber matrix and the two cord layers, thereby connecting the two cord layers and the rubber matrix to form an integral structure, the structural strength of the vacuum tire is enhanced, and the load bearing capacity of the tire is improved; the cord layer is woven by the steel wire flat strip, the first tensile fiber flat strip and the second tensile fiber flat strip, and the force received by the tire can be quickly and uniformly distributed on the steel wire flat strip, the first tensile fiber flat strip and the second tensile fiber flat strip, the probability that the tire is damaged due to excessive local force is reduced, and the service life of the tire is prolonged.

[0008] In a preferred example, the steel wire flat strip, the first tensile fiber flat strip and the second tensile fiber flat strip are connected by diagonal weaving.

[0009] By adopting the technical scheme, the steel wire flat strip, the first tensile fiber flat strip and the second tensile fiber flat strip are connected by diagonal weaving, so that the tire can uniformly bear the force in all directions, and the overall strength and stability of the tire are improved.

[0010] In a preferred example, the steel wire flat strip is woven by a plurality of steel wires, the first tensile fiber flat strip is woven by a plurality of polyester fiber filaments, and the second tensile fiber flat strip is woven by a plurality of nylon filaments.

[0011] By adopting the technical scheme, the steel wire flat strip is formed by steel wire weaving, so that the tire has a certain toughness and can bear a certain degree of bending and stretching when deformed, the first tensile fiber flat strip is woven by polyester fiber filaments, the first tensile fiber flat strip has a high elastic modulus and can provide good recovery force when the tire deforms, so that the tire maintains a good shape, and the second tensile fiber flat strip is woven by nylon filaments, so that the tire is not prone to fatigue cracks and damage under repeated stress, and the service life of the tire is prolonged.

[0012] In a preferred example, the connecting strip is spiral woven by a plurality of steel wires.

[0013] By adopting the technical scheme, the connecting strip has a certain flexibility and structural strength, and the two cord layers and the rubber matrix can be tightly connected together.

[0014] In a preferred example, the connecting strip protrudes into the rubber matrix in the region of the cord layer, and the rubber matrix is tightly attached to the cord layer.

[0015] Through the above technical scheme, the part of the connecting strip is embedded in the rubber matrix, and the firmness of the connection between the cord layer and the rubber matrix is enhanced.

[0016] In a preferred example, the steel wire is made of high-carbon steel or alloy steel.

[0017] Through the above technical scheme, the steel wire is made of high-carbon steel or alloy steel, so that the steel wire flat strip has good strength and toughness, and the probability of fatigue crack and fracture can be reduced when a large load and stress are borne.

[0018] In summary, the utility model has at least one of the following beneficial technical effects:

[0019] 1. Since the crown belt layer includes two cord layers, the two cord layers are connected by the rubber matrix, and the connecting strip in a wave structure passes through the rubber matrix and the two cord layers, thereby connecting the two cord layers and the rubber matrix to form an integral structure, the structural strength of the vacuum tire is enhanced, and the load-carrying capacity of the tire is improved.

[0020] 2. Since the cord layer is woven by the steel wire flat strip, the first tensile fiber flat strip and the second tensile fiber flat strip, the force received by the tire can be quickly and evenly distributed on the steel wire flat strip, the first tensile fiber flat strip and the second tensile fiber flat strip, the probability of damage of the tire due to excessive local stress is reduced, and the service life of the tire is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical scheme in the embodiments of the utility model, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the utility model, and other drawings can be obtained by those skilled in the art without creative labor, wherein:

[0022] Figure 1 is a structure schematic view of a preferred embodiment of a vacuum tire of the utility model.

[0023] Figure 2 is Figure 1 a structure schematic view of a crown belt layer in the embodiment.

[0024] Figure 3 is Figure 2 a structure schematic view of a cord layer in the embodiment.

[0025] In the drawing: 1, tire body; 20, crown belt layer; 3, carcass layer;

[0026] 21, cord layer; 22, rubber matrix; 23, connecting strip;

[0027] 211, steel wire flat; 212, first tensile fiber flat; 213, second tensile fiber flat. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present application will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are merely intended to illustrate and explain the present application, and are not intended to limit the present application.

[0029] It should be noted that these drawings are simplified schematic diagrams, and only illustrate the basic structure of the present application in a schematic manner, and thus only show the components related to the present application.

[0030] Referring to Figures 1 to 3 The present application discloses a kind of vacuum tires, comprising: tire body 1, the tire body 1 inside is equipped with crown belt 20 and body ply 3, body ply 3 can withstand the load and pressure of tire, body ply 3 is located in the inside of crown belt 20, crown belt 20 includes two cord layers 21 by inside to outside setting, two described cord layers 21 are connected with rubber matrix 22, further include the connection strip 23 of a plurality of intervals along the width direction of tire body 1, connection strip 23 is wave structure and passes through rubber matrix 22 and two cord layers 21, it is suitable for the fixed connection of rubber matrix 22 and two cord layers 21;Connection strip 23 is made of a plurality of steel wire spiral weaving;So that connection strip 23 has certain flexibility and structural strength, facilitate two cord layers 21 and rubber matrix 22 are connected closely together.

[0031] Cord layer 21 includes a plurality of steel wire flat 211, a plurality of first tensile fiber flat 212 and a plurality of second tensile fiber flat 213 are woven into, steel wire flat 211, first tensile fiber flat 212 and second tensile fiber flat 213 are diagonal weave connection between them;Since steel wire flat 211, first tensile fiber flat 212 and second tensile fiber flat 213 are diagonal weave connection between them, tire can uniformly bear the action of force in each direction, improve the overall strength and stability of tire.

[0032] The steel wire flat strip 211 is woven by steel wires, the material of the steel wires is high-carbon steel or alloy steel, the first tensile fiber flat strip 212 is woven by polyester fiber wires, and the second tensile fiber flat strip 213 is woven by nylon wires; the steel wire flat strip 211 is formed by weaving steel wires, so that the tire has certain toughness, and the tire can bear a certain degree of bending and stretching when deformed; the first tensile fiber flat strip 212 is formed by weaving polyester fiber wires, the first tensile fiber flat strip 212 has a high elastic modulus, can provide better recovery force when the tire deforms, and makes the tire keep good shape; the second tensile fiber flat strip 213 is formed by weaving nylon wires, and the tire is not prone to fatigue cracks and damage under repeated stress due to excellent fatigue resistance of the nylon wires, thereby prolonging the service life of the tire.

[0033] The area, where the connecting strip 23 protrudes from the cord layer 21, is embedded in the rubber matrix 22, and the rubber matrix 22 is tightly attached to the cord layer 21; part of the connecting strip 23 is embedded in the rubber matrix 22, thereby enhancing the firmness of the connection between the cord layer 21 and the rubber matrix 22.

[0034] The implementation principle of the embodiment is that, when in use, after the vacuum tire is installed on the hub, gas is filled into the vacuum tire, the crown belt layer 20 includes two cord layers 21, the two cord layers 21 are connected through the rubber matrix 22, and the connecting strip 23 in a wave structure passes through the rubber matrix 22 and the two cord layers 21, thereby connecting the two cord layers 21 and the rubber matrix 22 to form an integral structure, enhancing the structural strength of the vacuum tire and improving the load-carrying capacity of the tire; the cord layer 21 is woven by the steel wire flat strip 211, the first tensile fiber flat strip 212 and the second tensile fiber flat strip 213, so that the force received by the tire can be quickly and uniformly distributed on the steel wire flat strip 211, the first tensile fiber flat strip 212 and the second tensile fiber flat strip 213, thereby reducing the probability that the tire is damaged due to excessive local stress and prolonging the service life of the tire.

[0035] The above only describes the embodiments of the present application, and does not limit the patent range of the present application, and any equivalent structure or equivalent process transformation according to the content of the present application, or direct or indirect application in other related technical fields, are also included in the patent protection range of the present application.

Claims

1. A vacuum tire, comprising: The utility model provides a kind of tire body (1), which is provided with a crown belt layer (20) and a carcass layer (3) inside the tire body (1), and the carcass layer (3) is located inside the crown belt layer (20). The crown belt layer (20) includes two cord layers (21) arranged from inside to outside, and a rubber matrix (22) is connected between the two cord layers (21). The tire body (1) is provided with a plurality of connecting strips (23) arranged at intervals along the width direction of the tire body (1). The connecting strips (23) are in a wave structure and pass through the rubber matrix (22) and the two cord layers (21), and are suitable for fixedly connecting the rubber matrix (22) and the two cord layers (21). The cord layer (21) is woven by a plurality of steel wire flat strips (211), a plurality of first tensile fiber flat strips (212) and a plurality of second tensile fiber flat strips (213).

2. The vacuum tire of claim 1, wherein, The steel wire flat strips (211), the first tensile fiber flat strips (212) and the second tensile fiber flat strips (213) are connected by diagonal weaving.

3. The vacuum tire of claim 1, wherein, The steel wire flat strips (211) are woven by a plurality of steel wires, the first tensile fiber flat strips (212) are woven by a plurality of polyester fiber filaments, and the second tensile fiber flat strips (213) are woven by a plurality of nylon filaments.

4. The vacuum tire of claim 1, wherein, The connecting strips (23) are woven by a plurality of steel wires.

5. The vacuum tire of claim 1, wherein, The connecting strips (23) are embedded in the rubber matrix (22) in the area protruding from the cord layer (21), and the rubber matrix (22) is closely attached to the cord layer (21).

6. The vacuum tire of claim 3, wherein, The steel wire is made of high-carbon steel or alloy steel.

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