CN220242900U

CN220242900U - Pneumatic tire

Info

Publication number: CN220242900U
Application number: CN202321417294.9U
Authority: CN
Inventors: 李远坤; 符中凯; 宋平; 庄勇博; 张斌
Original assignee: Qingdao Port International Co ltd Dongjiakou Branch; Qingdao Port International Co Ltd
Current assignee: Qingdao Port International Co ltd Dongjiakou Branch; Qingdao Port International Co Ltd
Priority date: 2023-06-05
Filing date: 2023-06-05
Publication date: 2023-12-26
Anticipated expiration: 2033-06-05

Abstract

The utility model discloses a pneumatic tire, which comprises an outer tire connected with a hub and an interlayer arranged in the outer tire and connected with the outer tire; the outer layer tire comprises a tread, tire shoulders, tire sidewalls and toe openings; the tread is positioned at the topmost end, and two ends of the tread are respectively connected with the tire side through the tire shoulder; the sidewalls positioned at the two sides of the tread are respectively connected with the toe openings and are hermetically connected with the wheel hub through the toe openings to form a closed cavity; the interlayer is in a cylindrical ring shape, and the side surface of the interlayer corresponds to the tread; the two ends of the interlayer are respectively connected with the tire shoulders, so that the closed cavity can be divided into a first closed cavity and a second closed cavity; and the second closed cavity is positioned between the interlayer and the tread; a first air valve is arranged on the interlayer and is used for inflating the second airtight cavity; the first airtight cavity is inflated through a second valve arranged on the hub. The utility model prolongs the service life of the tire and improves the driving safety.

Description

Pneumatic tire

Technical Field

The utility model belongs to the technical field of vehicle engineering, and particularly relates to a pneumatic tire.

Background

The pneumatic tire is a rubber product widely applied in the automobile industry, is easily affected by high temperature, internal and external oxygen and other factors in the grounding driving process, is easy to age and damage, and is particularly severe in the oxidization phenomenon at the tire shoulder of the pneumatic tire when encountering uneven road surfaces and stress concentration points at the tire shoulder, and is an elastomer, and the surface rubber of the pneumatic tire is easily pierced when encountering external sharp objects, so that the performance of the pneumatic tire is affected, and the potential safety hazard is large.

Disclosure of Invention

The utility model provides a pneumatic tire, which can slow down the aging of the pneumatic tire, prolong the service life of the tire and improve the driving safety.

In order to solve the technical problems, the utility model is realized by adopting the following technical scheme:

a pneumatic tire comprising an outer tire for connection with a hub and an interlayer disposed within and connected with the outer tire;

the outer layer tire comprises a tread, tire shoulders, tire sidewalls and toe openings; the tread is positioned at the topmost end, and two ends of the tread are respectively connected with the tire side through the tire shoulder; the side walls positioned at the two sides of the tread are respectively connected with the toe openings and are hermetically connected with the wheel hubs through the toe openings to form a closed cavity for supporting;

the interlayer is in a cylindrical ring shape, and the side surface of the interlayer corresponds to the tread; two ends of the interlayer are respectively connected with the tire shoulders to divide the closed cavity into a first closed cavity and a second closed cavity; the second closed cavity is positioned between the interlayer and the tread;

a first air valve is arranged on the interlayer and is used for inflating the second airtight cavity; the first airtight cavity is inflated through a second valve arranged on the hub.

In a specific embodiment, nitrogen is filled in the second closed cavity.

In a specific embodiment, the interlayer comprises a matrix and a plurality of steel wires uniformly arranged in the matrix; the steel wire is in a circular ring shape and is arranged along the circumference of the matrix.

In a specific embodiment, the spacing between each adjacent steel wire is not more than 1mm.

In a specific embodiment, the steel wire is made of high carbon structural steel.

In a specific embodiment, the matrix is made of a thermoset rubber.

In some specific embodiments, the outer layer tire further comprises an inner liner located innermost of the tread, the shoulder, the sidewall, the toe; the interlayer is connected with the airtight layer in a sealing way.

Compared with the prior art, the utility model has the advantages and positive effects that: the pneumatic tire comprises an outer tire connected with a hub and an interlayer positioned on the inner side of the outer tire and connected with the outer tire; the outer layer tire comprises a tread, a tire shoulder, a tire side and a toe opening; the tread is positioned at the topmost end, and two ends of the tread are respectively connected with the tire side through tire shoulders; the sidewalls at two sides of the tread are respectively connected with the toe openings and are in airtight connection with the hub through the toe openings to form an airtight cavity; the two ends of the interlayer are respectively connected with each tire shoulder, the closed cavity is divided into a first closed cavity and a second closed cavity, and the second closed cavity is positioned between the tire tread and the interlayer; when the first airtight cavity is inflated, the first airtight cavity can play a main supporting role and is used for supporting a vehicle body; the second airtight cavity is inflated, so that an isolation space is formed between the tread and the interlayer, and the interlayer is protected, namely, the first airtight cavity is protected, so that the first airtight cavity is not damaged when the tread is punctured, and the formation safety is improved; namely, when the tread is punctured, the first closed cavity still has a supporting function when the second closed cavity is broken, so that the occurrence rate of safety accidents is reduced, and the driving safety is improved; in addition, set up the first valve and be used for the inflation of second airtight chamber on the interlayer, compare the structure that sets up the first valve on the trachea connect second airtight chamber and the wheel hub and reduce the wearing and tearing of air in the first airtight chamber to the trachea and to tracheal ageing effect, extension second airtight chamber is to the guard action of tire, and then the life-span of extension tire.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a partially longitudinal cross-sectional structure of one embodiment of a pneumatic tire according to the present utility model;

FIG. 2 is an enlarged schematic view of a portion of the structure at A in FIG. 1;

fig. 3 is a schematic partial perspective view of an embodiment of a pneumatic tire according to the present utility model.

In the drawing the view of the figure,

1. an outer layer tire; 2. an interlayer; 3. a first closed cavity; 4. a second closed cavity; 5. a first valve; 11. a tread; 12. shoulder; 13. a sidewall; 14. a toe opening; 15. an airtight layer; 21. a base; 22. and (3) a steel wire.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are illustrative and intended to explain the present utility model and should not be construed as limiting the utility model.

Referring to fig. 1, 2 and 3, the present utility model discloses a pneumatic tire comprising an outer tire 1 for connection with a hub and a barrier layer 2 provided inside the outer tire 1 and connected with the outer tire 1.

The outer layer tire 1 comprises a tread 11, a shoulder 12, a sidewall 13 and a toe opening 14; the tread 11 is located at the topmost surface of the outer tyre 1 for contact with the ground in use; the tread 11 is cylindrical, two ends of the tread are respectively connected with tire shoulders 12, and two ends of the tread 11 are respectively connected with tire sidewalls 13 at two ends of the tread through the tire shoulders 12 at two ends of the tread; the sidewalls 13 are respectively connected with the toe openings 14; the toe opening 14 is used for being connected with the hub, so that the outer tire 1 and the hub form a closed cavity together after being connected.

The interlayer 2 is of a cylindrical annular structure, two ends of the side face of the interlayer are respectively connected with the tire shoulder 12 and correspond to the inner side face of the tire tread 11, and the airtight cavity is divided into a first airtight cavity 3 and a second airtight cavity 4; the first airtight cavity 3 is positioned between the hub and the interlayer 2; the second closed cavity 4 is positioned between the tread 11 and the interlayer 2; and plays a major supporting role when the pneumatic tire is used when the first closed chamber 3 is inflated. When the second airtight cavity 4 is inflated, the space formed by the second airtight cavity 4 is isolated between the tread 11 and the first airtight cavity 3, namely between the tread 11 and the interlayer 2.

A first valve 5 is arranged on the interlayer 2 and is used for inflating the second closed cavity 4; while the first closed chamber 3 is inflated by a second valve provided on the hub. Of course, the pneumatic tyre must be inflated to the second closed chamber 4 by the first valve 5 before being mounted on the hub.

The pneumatic tire of the present utility model comprises an outer tire 1 for connection with a hub and an interlayer 2 located inside the outer tire 1 and connected with the outer tire 1; the outer layer tire 1 comprises a tread 11, a shoulder 12, a sidewall 13 and a toe opening 14; the tread 11 is positioned at the topmost end, and two ends of the tread are respectively connected with the tire sidewall 13 through tire shoulders 12; the side walls 13 at two sides of the tread 11 are respectively connected with the toe openings 14 and are hermetically connected with the hub through the toe openings 14 to form a closed cavity; the two ends of the interlayer 2 are respectively connected with each tire shoulder 12, the closed cavity is divided into a first closed cavity 3 and a second closed cavity 4, and the second closed cavity 4 is positioned between the tire tread 11 and the interlayer 2; when the first airtight cavity 3 is inflated, the main supporting function can be realized, and the first airtight cavity is used for supporting a vehicle body; the second airtight cavity 4 is inflated, so that an isolation space is formed between the tread 11 and the interlayer 2, and the interlayer 2 is protected, namely, the first airtight cavity 3 is protected, so that the first airtight cavity 3 is not damaged when the tread 11 is punctured, and the formation safety is improved; namely, when the tread 11 is punctured, the first closed cavity 3 still has a supporting function when the second closed cavity 4 is ruptured, so that the occurrence rate of safety accidents is reduced, and the driving safety is improved; in addition, set up the first valve 5 on the interlayer 2 and be used for the inflatable of second airtight chamber 4, compare the structure that sets up the air pipe and connect second airtight chamber 4 and set up the first valve 5 on the wheel hub and reduce the wearing and tearing of air in the first airtight chamber 3 to the air pipe and to the ageing effect of air pipe, extension second airtight chamber 4 is to the guard action of tire, and then the life-span of extension tire.

By connecting the cylindrical interlayer 2 at the tire shoulders 12 on the two inner sides of the integral outer tire 1, the tire shoulders 12 of the outer tire 1 are thickened and filled, the stress damage of the tire shoulders 12 caused by frequent stress concentration during running of the automobile is relieved, the durability of the tire shoulders 12 of the outer tire 1 is improved, and the service life of the pneumatic tire is further prolonged.

The specific structure and principle of the pneumatic tire of the present utility model will be described in detail by means of specific examples.

Referring to fig. 1, 2 and 3, the second closed chamber 4 is filled with nitrogen gas.

The pneumatic tire of the present embodiment fills nitrogen in the second closed chamber; the nitrogen is dry and clean, does not contain water or oil, is inert gas, does not oxidize the tire, particularly the tread 11, and can prolong the service life of the tire; namely, the tread 11 portion can prevent the accelerated aging of the tread 11 and the shoulder 12 of the pneumatic tire due to the moisture and oxygen contained in the charged air, thereby improving the durability of the pneumatic tire, reducing the amount of waste tires produced, and saving natural resources. Secondly, the permeability of nitrogen in the tire is low, the tire pressure can be kept stable for a long time, the tire burst probability is reduced, the running safety of the vehicle is improved, the nitrogen keeps stable tire pressure, the resistance in the running process of the vehicle can be reduced, the fuel consumption is reduced, and the abrasion degree of the tire is reduced. Finally, the concave-convex road surface reduces vibration, runs steadily, has low volume conductivity, reduces noise, and improves driving stability and comfort.

In a specific embodiment, referring to fig. 1, 2 and 3, the interlayer 2 includes a base 21 and a plurality of steel wires 22 uniformly disposed in the base 21; the steel wires 22 are annular, are arranged along the circumferential direction of the base 21, and are uniformly arranged along the axial direction of the base 21.

The pneumatic tire of the present embodiment improves the strength of the barrier layer 2 by providing the barrier layer 2 in a structure including the base 21 and the plurality of steel wires 22 uniformly provided in the base 21, not only improves the service life of the barrier layer 2, but also maintains the overall internal gas pressure of the pneumatic tire in the case where the tread 11 of the pneumatic tire is punctured, prevents accidents caused by tire failure, and improves the running safety of the automobile.

In a specific embodiment, referring to fig. 2, the spacing between adjacent wires 22 is no more than 1mm; the diameter of the steel wire 22 ranges from 1.0mm to 1.3mm; preferably 1mm.

In one embodiment, the steel wire 22 is made of a high carbon structural steel material.

The pneumatic tire of this embodiment is made of a high carbon structural steel material by the steel wire 22, which improves the deformability and strength of the barrier layer 2 without increasing the weight of the pneumatic tire.

In a specific embodiment, the base 21 is made of thermosetting rubber, such as natural rubber, and additives such as antioxidants and accelerators are added to improve the ageing resistance of the interlayer 2.

In a specific embodiment, the interlayer 2 uses the composite rubber material as the matrix 21, and the steel wires 22 are embedded in the matrix 21 during the molding process of the matrix 21; that is, the steel wire 22 is embedded in the matrix 21 during the molding process; the composite connectivity and the strength of the composite are improved.

In some specific embodiments, referring to fig. 1, 3, the outer layer tire 1 further comprises an inner liner 15 located innermost of the tread 11, shoulder 12, sidewall 13, toe 14; the interlayer 2 is hermetically connected to the inner liner 15 so that the first airtight chamber 3 is not communicated with the second airtight chamber 4.

In the description of the present utility model, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the description of the present specification, a description referring to terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that variations, modifications, alternatives and variations may be made to the above embodiments by one of ordinary skill in the art within the scope of the utility model.

Claims

1. A pneumatic tire comprising an outer tire for connection with a hub and an interlayer disposed within and connected to the outer tire;

2. The pneumatic tire of claim 1 wherein nitrogen is inflated within said second closed chamber.

3. The pneumatic tire of claim 1, wherein the barrier layer comprises a matrix and a plurality of steel wires uniformly disposed within the matrix; the steel wire is in a circular ring shape and is arranged along the circumference of the matrix.

4. A pneumatic tire according to claim 3, wherein the spacing between each adjacent said steel wire is no more than 1mm.

5. A pneumatic tire according to claim 3, wherein said steel wire is made of a high carbon structural steel material.

6. A pneumatic tire according to claim 3, wherein said matrix is made of thermoset rubber.

7. The pneumatic tire of any one of claims 1 to 6, wherein the outer layer tire further comprises an inner liner located innermost of the tread, the shoulder, the sidewall, the toe; the interlayer is connected with the airtight layer in a sealing way.