CN215751739U

CN215751739U - Novel run-flat tire

Info

Publication number: CN215751739U
Application number: CN202122350686.5U
Authority: CN
Inventors: 马金田; 王昭军; 马赟; 王德雷
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-27
Filing date: 2021-09-27
Publication date: 2022-02-08
Anticipated expiration: 2031-09-27

Abstract

The utility model discloses a novel run-flat tire, which comprises a hub and a tire body, wherein the hub comprises a shaft sleeve, the outer side of the shaft sleeve is fixedly connected with a fixed disc for mounting the tire body, the tire body comprises an outer tire and an inflatable inner tire, a protective tire is mounted between the outer tire and the inflatable inner tire, the outer layer of the protective tire is attached to the inner layer of the outer tire, and the outer layer of the inflatable inner tire is attached to the inner layer of the protective tire; the thickness of the outer tire is d1, the thickness of the protective tire is d2, and the proportional relation between d1 and d2 is as follows: (1-1.5):1. According to the utility model, the protective tire is arranged between the outer tire and the inflatable inner tire, so that the inflatable inner tire is protected by the protective tire, and the tire burst condition of the inflatable inner tire is greatly reduced when the outer tire is damaged, so that the outer tire is only required to be maintained and replaced; on the other hand, when the outer tire is damaged, the normal operation of the heavy truck is not influenced due to the existence of the protective tire.

Description

Novel run-flat tire

Technical Field

The utility model relates to the technical field of tires, in particular to a novel run-flat tire.

Background

Tires are ground-rolling annular elastic rubber articles fitted on various vehicles. During the running process of the heavy truck, the tires are the only parts of the automobile or mechanical equipment contacting with the ground, and the safety of the driver and passengers of the heavy truck is directly influenced by the performance of the tires. Tires for heavy goods vehicles are often used under complicated and severe conditions, and the tires are subjected to various deformations, loads, external forces and high and low temperature changes, so that the tires are required to have high bearing performance, traction performance and buffering performance, and meanwhile, the tires are required to have high wear resistance and flexing resistance. The outer tire of the heavy truck tire with the inflatable inner tire is inevitably damaged in the use process, and particularly in the driving process, the damage of the outer tire can cause great influence on the inner tire, so that the normal operation of the heavy truck is influenced, and even the life hazard is brought to drivers and passengers.

SUMMERY OF THE UTILITY MODEL

The utility model provides a novel run-flat tire, which aims to solve the problem that the normal running of a truck is influenced when an outer tire of the conventional heavy truck is damaged.

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows: the utility model provides a novel run-flat tire, includes wheel hub and tire body, and wheel hub includes the axle sleeve, and axle sleeve outside fixedly connected with is used for installing the fixed disk of tire body, and the tire body includes the cover tire and aerifys the inner tube of a tyre, installs the protection child between cover tire and the aerify inner tube of a tyre, and the skin of protection child sets up with the inlayer laminating of cover tire, aerifys the skin of the inner tube of a tyre and sets up with the inlayer laminating of protection child.

Preferably, the thickness of the outer tyre is d1, the thickness of the protective tyre is d2, and the relationship between d1 and d2 is as follows: d1 is more than or equal to d 2.

Preferably, the proportional relationship between d1 and d2 is: (1-1.5):1.

Preferably, the proportional relationship between d1 and d2 is: 1.2:1.

Preferably, the fixed disk including the cover establish on the axle sleeve and with axle sleeve fixed connection's backup pad, the backup pad be the annular setting, the connecting plate that the backup pad periphery fixedly connected with annular set up, the subtract heavy board that the connecting plate periphery fixedly connected with annular set up, it inwards caves in the mounting groove that is used for installing cover tire, inflatable inner tube of a tyre and protection child to subtract one side that the heavy board kept away from the connecting plate.

Preferably, the shaft sleeve is fixedly connected with a plurality of connecting columns arranged at intervals along the circumferential direction of the shaft sleeve, the bottom of each connecting column is fixedly connected with the supporting plate, the outer side wall of the supporting plate is provided with an arc-shaped plate fixedly connected with a plurality of intervals along the circumferential direction of the supporting plate, and the bottom of the arc-shaped plate is fixedly connected with the connecting plate.

Preferably, the connecting plate is provided with a plurality of first openings along the circumferential direction.

Preferably, the weight reducing plate is provided with a plurality of second openings which are arranged at intervals; and a plurality of circularly arranged third openings are also formed in the weight reducing plate between the two adjacent second openings.

Preferably, the mounting groove is internally and fixedly connected with a damping bag, the damping bag is made of soft rubber, a honeycomb-shaped damping hole is formed in the damping bag, and the central axis of the damping hole along the length direction is parallel to the central axis of the inflatable inner tube.

The utility model has the following beneficial effects: (1) according to the utility model, the protective tire is arranged between the outer tire and the inflatable inner tire, so that the inflatable inner tire is protected by the protective tire, and the tire burst condition of the inflatable inner tire is greatly reduced when the outer tire is damaged, so that the outer tire is only required to be maintained and replaced; on the other hand, when the outer tire is damaged, the normal operation of the heavy truck is not influenced due to the existence of the protective tire, and the outer surface of the protective tire is also provided with the anti-skid surface, so that the stability of the heavy truck in the running process when the protective tire directly abuts against the ground surface is ensured; (2) the shock absorption bag is arranged in the mounting groove, and the shock absorption hole is formed in the shock absorption bag, so that the shock absorption bag has good elasticity, and a good buffering effect is achieved on the inflatable inner tube; (3) the connecting column is arranged, so that the connection stability between the supporting plate and the shaft sleeve is improved, and the strength of the shaft sleeve is also improved; the stability between the supporting plate and the connecting plate is improved by arranging the arc-shaped plate, and the strength of the supporting plate is improved; (4) the weight of the fixed disc is reduced by arranging the first opening, the second opening and the third opening, and meanwhile, the wind resistance of the fixed disc in the running process is reduced, and the stability of the tire is improved; (5) in the utility model, the outer tire mainly has the effect of contacting with the ground, 90% of the pressure of the whole tire is borne by the protective tire, so the outer tire can be selected as a retreaded outer tire, even the outer tire with cracks can be used, the consumption of a user on the tire is reduced by about 70%, meanwhile, the retreaded tire is fully utilized, the waste of rubber resources is reduced, and the pollution to the environment in the rubber production process is reduced.

Drawings

FIG. 1 is a schematic structural view of embodiment 1 of the present invention;

FIG. 2 is a schematic view of the connection relationship between the outer tire, the protective tire, the inflatable inner tube and the fixed disk of the present invention;

FIG. 3 is a schematic structural view of the shock-absorbing bladder of the present invention;

fig. 4 is a schematic structural diagram of embodiment 2 of the present invention.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

Example 1

The utility model provides a novel run-flat tire, as shown in fig. 1-fig. 2, including wheel hub and tire body (the tire body has the structure of tire function promptly), wheel hub includes

axle sleeve

1, 1 outside fixedly connected with of axle sleeve is used for installing the fixed disk 2 of tire body, the tire body includes cover tire 3 and inflatable inner tube 4, install protection child 5 between cover tire 3 and the inflatable inner tube 4, the shape of protection child 5 is unanimous with the shape of cover tire 3, the tip that protection child 5 is close to axle sleeve 1 one side is seted up jaggedly, the skin of protection child 5 sets up with the inlayer laminating of cover tire 3, the skin of inflatable inner tube 4 sets up with the inlayer laminating of protection child 5. The outer tyre 3 is made of high-strength wear-resistant rubber mixed with steel wires, the protective tyre 5 is made of high-strength wear-resistant rubber, and the high-strength wear-resistant rubber can be selected from any one of nitrile rubber, ethylene propylene diene monomer, chloroprene rubber and silicon rubber. The sleeve 1 is also provided with an inflation nozzle 18 for inflating the inflatable inner tube 4. The protection effect on the inflatable inner tube 4 can also be achieved by increasing the thickness of the outer tube 3, but the difficulty of the production process of the outer tube 3 is greatly improved, and meanwhile, the weight of the whole tire is greatly increased. And the weight of the whole tire is kept in a proper range while protecting the pneumatic tube 4 by providing the protective tire 5 without steel wires.

Alternatively, the thickness of the tyre casing 3 is d1, the thickness of the protective tyre 5 is d2, and the relationship between d1 and d2 is: d2 is more than or equal to d1 and is more than or equal to 0.7d 1. The thickness of protection child 5 is less than the thickness of cover tire 3 slightly, and when cover tire 3 appeared damaged, protection child 5 can play the guard action to aerifing the inner tube of a tyre, avoids aerifing the inner tube of a tyre and receives the damage, and simultaneously, protection child 5 has with 3 assorted intensity of cover tire and wear resistance, this just makes protection child 5 can directly contradict ground and carry out the travel of certain time. In order to guarantee the stability of the protection tire 5 in contact with the ground in the running process, the outer surfaces of the protection tire 5 and the outer tire 3 are provided with anti-skid surfaces, the bosses are fixedly connected with bosses on the anti-skid surfaces, anti-skid grooves are formed in the surfaces of the bosses, preferably, anti-skid nail holes are further formed in the bosses, anti-skid nails are fixedly connected in the anti-skid nail holes and are arranged towards the center of the shaft sleeve 1, and the anti-skid effect of the anti-skid surfaces is improved by arranging the anti-skid grooves and the anti-skid nails.

Further, the proportional relationship between d1 and d2 is: (1-1.2):1. The thicknesses of the outer tire 3 and the protective tire 5 are further limited, so that the thicknesses of the protective tire 5 and the outer tire 3 are closer, the performance of the protective tire 5 is closer to the performance of the outer tire 3, and the protective effect of the protective tire 5 on the inflatable inner tube is improved. Preferably, the proportional relationship between d1 and d2 is: 1.2:1.

In this embodiment, the fixed disk 2 is provided with a plurality of lightening holes 6, so that the lightening holes 6 are arranged to facilitate lightening the weight of the fixed disk 2, reduce wind resistance of the fixed disk 2 in the driving process, and reduce metal materials consumed by the fixed disk 2, thereby reducing the cost. One side of the fixed disc 2, which is far away from the shaft sleeve 1, is inwards sunken to form a mounting groove 7 for mounting an outer tire 3, an inflatable inner tire and a protective tire 5.

Optionally, as shown in fig. 2 and 3, a shock absorbing bag 8 is fixedly connected in the mounting groove 7, the shock absorbing bag 8 is made of soft rubber, a honeycomb shock absorbing hole 9 is formed in the shock absorbing bag 8, and a central axis of the shock absorbing hole 9 in the length direction is parallel to a central axis of the inflatable inner tube. Through setting up the shock attenuation bag 8 and seting up honeycomb shock attenuation hole 9 on the shock attenuation bag 8 for be full of the air in the shock attenuation hole 9 of shock attenuation bag 8, thereby make shock attenuation bag 8 have fine elasticity, and then can play better shock attenuation effect to inflating the inner tube of a tyre.

In the embodiment, the protective tire 5 is arranged between the outer tire 3 and the inflatable inner tire 4, and the thickness of the protective tire 5 is set to be close to that of the outer tire 3, so that the performance of the protective tire 5 is ensured, the protective tire 5 has a certain protective effect on the inflatable inner tire 4, when the outer tire 3 is damaged in the driving process, the tire burst of the inflatable inner tire 4 is avoided, and the heavy truck can continuously drive conveniently; through set up the shock attenuation bag 8 in mounting groove 7 and open in shock attenuation bag 8 and establish shock attenuation hole 9 for be full of the air in the shock attenuation bag 8, thereby make the shock attenuation bag 8 all have certain shock attenuation effect to aerifing inner tube of a tyre 4, cover tire 3 etc. and then guaranteed heavy goods vehicle stability at the in-process of traveling, also improved driver and crew's comfort level.

Example 2

The structure of the fixed disk 2 of this embodiment is different from that of the embodiment, and the rest of the structure is the same as that of embodiment 1, which is not described herein again. As shown in fig. 3, the fixed disk 2 includes a supporting plate 10 sleeved on the shaft sleeve 1 and fixedly connected with the shaft sleeve 1, the supporting plate 10 is annularly arranged, a connecting plate 11 is annularly and fixedly connected to the outer periphery of the supporting plate 10, a weight reducing plate 12 is annularly and fixedly connected to the outer periphery of the connecting plate 11, and one side of the weight reducing plate 12 away from the connecting plate 11 is inwardly recessed to form a mounting groove 7 for mounting the cover tire 3, the inflatable inner tube 4 and the protective tire 5. When in use, the outer tire 3, the protective tire 5 and the inflatable inner tire 4 are sequentially arranged in the mounting groove 7.

Further, the shaft sleeve 1 is fixedly connected with a plurality of connecting columns 13 arranged at intervals along the circumferential direction of the shaft sleeve, the bottom of each connecting column 13 is fixedly connected with the corresponding support plate 10, the connecting strength between the shaft sleeve 1 and the corresponding support plate 10 can be increased by arranging the connecting columns 13, and the strength of the shaft sleeve 1 can be improved on the other hand. Follow the arc 14 that a plurality of intervals of its circumference fixedly connected with set up on the lateral wall of backup pad 10, arc 14 bottom and connecting plate 11 fixed connection can strengthen the joint strength between backup pad 10 and the connecting plate 11 on the one hand through setting up arc 14, and on the other hand arc 14 has also improved the intensity of backup pad 10, has reduced the risk that backup pad 10 takes place the distortion. The arc plates 14 correspond to the connection posts 13 one by one, thereby further improving the strength of the support plate 10.

Optionally, a plurality of first openings 15 are formed in the outer surface of the connecting plate 11 along the circumferential direction, and the first openings 15 can reduce the weight of the fixed disk 2 on the one hand and reduce the wind resistance of the tire during running on the other hand.

Optionally, the weight-reducing plate 12 is provided with a plurality of second openings 16 arranged at intervals; a plurality of third openings 17 which are circularly arranged are further formed on the lightening plate 12 between two adjacent second openings 16. The provision of the second and

third apertures

16, 17 further reduces the weight of the mounting plate 2 and reduces the wind resistance of the tyre during travel.

In the embodiment, the support plate 10, the connecting plate 11 and the weight reducing plate 12 are sequentially arranged outside the shaft sleeve 1, the connecting column 13 is arranged between the support plate 10 and the shaft sleeve 1, the arc-shaped plate 14 is arranged between the support plate 10 and the connecting plate 11, the connecting plate 11 is provided with the first opening 15, and the weight reducing plate 12 is provided with the second opening 16 and the third opening 17, so that the connection strength between the support plate 10 and the shaft sleeve 1 and between the support plate 10 and the connecting plate 11 is improved, and the strength of the support plate 10 and the shaft sleeve 1 is also improved, thereby improving the performance of the whole tire.

The above embodiments are not intended to limit the shape, material, structure, etc. of the present invention in any way, and any simple modification, equivalent change and modification made to the above embodiments according to the technical spirit of the present invention are within the scope of the technical solution of the present invention.

Claims

1. The utility model provides a novel run-flat tire, includes wheel hub and tire body, and wheel hub includes the axle sleeve, and axle sleeve outside fixedly connected with is used for installing the fixed disk of tire body, its characterized in that: the tire body comprises an outer tire and an inflatable inner tire, a protective tire is arranged between the outer tire and the inflatable inner tire, the outer layer of the protective tire is attached to the inner layer of the outer tire, and the outer layer of the inflatable inner tire is attached to the inner layer of the protective tire.

2. A novel run flat tire as claimed in claim 1, wherein: the thickness of the outer tyre is d1, the thickness of the protective tyre is d2, and the relationship between d1 and d2 is as follows: d1 is more than or equal to d 2.

3. A novel run flat tire as claimed in claim 2, wherein: the proportional relationship between d1 and d2 is: (1-1.5):1.

4. A novel run flat tire as claimed in claim 1, wherein: the proportional relationship between d1 and d2 is: 1.2:1.

5. A novel run flat tire according to any one of claims 2 to 3, wherein: the fixed disk including the cover establish on the axle sleeve and with axle sleeve fixed connection's backup pad, the backup pad be the annular setting, the connecting plate that the backup pad periphery fixedly connected with annular set up, the subtract heavy board that the outer circumference fixedly connected with annular set up of connecting plate, subtract heavy board and keep away from one side of connecting plate inwards sunken to have the mounting groove that is used for installing the cover tire, aerify the inner tube of a tyre and protect the child.

6. A novel run flat tire according to claim 5, wherein: the shaft sleeve is fixedly connected with a connecting column at intervals along the circumferential direction of the shaft sleeve, the bottom of the connecting column is fixedly connected with the supporting plate, an arc plate is fixedly connected with the outer side wall of the supporting plate along the circumferential direction of the supporting plate, and the bottom of the arc plate is fixedly connected with the connecting plate.

7. A novel run flat tire according to claim 6, wherein: a plurality of first openings are formed in the connecting plate along the circumferential direction of the connecting plate.

8. A novel run flat tire according to claim 7, wherein: the weight reducing plate is provided with a plurality of second openings which are arranged at intervals; and a plurality of circularly arranged third openings are also formed in the weight reducing plate between the two adjacent second openings.

9. A novel run flat tire according to any one of claims 6 to 8, wherein: fixedly connected with damper bag in the mounting groove, damper bag's material is soft rubber, has seted up honeycomb shock attenuation hole in the damper bag, and the shock attenuation hole is along length direction's the central axis and the center pin parallel arrangement who aerifys the inner tube of a tyre.