CN212446984U

CN212446984U - Explosion-proof wheel

Info

Publication number: CN212446984U
Application number: CN201922458426.2U
Authority: CN
Inventors: 沈士华
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2021-02-02
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses an explosion-proof wheel, which comprises a supporting rim, an outer side sealing tire arranged on the supporting rim and a hollow tire arranged inside the outer side sealing tire; a sealed cavity is formed among the outer side sealed tire, the hollow tire and the support rim; the hollow tire is provided with a vent hole for balancing the internal pressure and the external pressure of the hollow tire. The hollow tire is an inflation-free hollow tire, and comprises at least one cavity inside, and the cavity is communicated with the sealed cavity through the vent hole. The explosion-proof wheel simultaneously installs a pneumatic tire and a hollow tire which are mature in technology on a rim; the wheel is not different from a common pneumatic tire wheel in a normal use state, but when the pneumatic tire is punctured or leaks, the vehicle body can be effectively supported, the running distance can be unlimited as the common pneumatic tire, and the comfort level is good.

Description

Explosion-proof wheel

Technical Field

The utility model relates to a wheel hub production technical field, concretely relates to explosion-proof wheel.

Background

The tire burst of the automobile tire is a very serious safety accident, particularly the tire burst on a highway. According to statistics, 70% of accidents on domestic expressways are caused by tire burst, and the death rate of the tire burst is close to 100% when the speed per hour is over 160 kilometers. Configuring the vehicle with a "run-flat" tire maximizes the safety concerns that are feared. However, the really-called run-flat tires are military off-road armored vehicles with 6 × 6 tires, 8 × 6 tires and other tires, and special metal strips are designed in the tires, so that the tires can be kept from deforming even if the tires are punctured by gunfire shrapnel. However, the military "run-flat tire" cannot be widely applied to the civil field.

To solve the problem of flat tires, various automobile companies and tire manufacturers have also invested a great deal of resources in developing a flat tire, typically the first RSC flat tire of bmw equipment, which differs from conventional tires in terms of flat characteristics, reinforced sidewalls, additional valve strips, and high heat resistance of the elastomer material. RSC in the event of a deflated tire, the vehicle can still run at a speed of 80 km/h for 250 km.

The RSC run-flat tire is still much more expensive than the common tire, the price of a BMW 3 RSC tire in a 4S shop can be more than 3000 Yuan, and the service life of the expensive run-flat tire is the same as that of the common tire, so that the use cost of the vehicle owner is increased. Not only does this increase the difficulty in maintaining the vehicle, the RSC tire, due to its strong sidewalls, cannot be replaced without the use of specialized tire changing tools, and the replacement process can be incorrect or even damage the rim. In addition, in practice, if a large damage (for example, a large-area sharp object is pierced) or the road surface condition is poor, the driving range may be shortened to several tens of kilometers, and in the range of about 100 kilometers, it is not easy in the vast continent of china to find a 4S shop of a bmw or a maintenance shop capable of replacing RSC tires.

In view of the above, some attempts have been made to develop a low-cost run-flat tire technology, such as the "child-mother type automobile safety wheel technology" disclosed in chinese patent application CN102582355A, but it also has the problems that the run-flat tire is easy to fall off and the comfort is extremely low. Therefore, developing a low-cost tire or wheel capable of running for a long distance after a tire burst is one of the most important directions for the future development of automobile technology.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of overcoming the defects of the prior art and provides an explosion-proof wheel and a manufacturing method thereof, wherein, a pneumatic tire and a hollow tire which have mature technologies are simultaneously arranged on a rim; the wheel is not different from a common pneumatic tire wheel in a normal use state, but when the pneumatic tire is punctured or leaks, the vehicle body can be effectively supported, the running distance can be unlimited as the common pneumatic tire, and the comfort level is good.

In order to achieve the above purpose, the utility model adopts the technical scheme that: an explosion-proof wheel comprises a support rim, an outer side sealing tire arranged on the support rim and a hollow tire arranged inside the outer side sealing tire;

a sealed cavity is formed among the outer side sealed tire, the hollow tire and the support rim;

the hollow tire is provided with a vent hole for balancing the internal pressure and the external pressure of the hollow tire.

The hollow tire is an inflation-free hollow tire, and comprises at least one cavity inside, and the cavity is communicated with the sealed cavity through the vent hole.

The cross section of the cavity is circular, oval or triangular, and a rhombic section, a pear-shaped section or a heart-shaped section can also be adopted.

Sealing flanges are arranged on two sides of the support rim, and at least one hollow tire groove is arranged in the middle of the support rim; the bottom of the support rim is provided with a valve hole; and an air pressure sensor fixing groove is arranged at the air valve hole.

The clearance between the inner wall of the outer side sealing tire and the outer edge surface of the hollow tire is 0.1-0.5 times of the width of the hollow tire.

And resistance increasing patterns are arranged on the tread of the hollow tire.

A production method of an explosion-proof wheel comprises the following steps:

a) firstly, mounting the hollow tire in a hollow tire groove of a support rim;

b) mounting the outboard seal tire on the support rim;

c) installing the air valve and filling air into the outside sealing tire through the air valve, and completing the installation.

The hollow tire is fixed on the support rim in a printing mode and then is subjected to integral vulcanization treatment.

Because of above-mentioned technical scheme's application, compared with the prior art, the utility model have the following advantage:

simultaneously mounting a pneumatic tire with mature technology and a hollow tire on a rim; the wheel is not different from a common pneumatic tire wheel in a normal use state, but when the pneumatic tire is punctured or leaks, the vehicle body can be effectively supported, the running distance can be unlimited as the common pneumatic tire, and the comfort level is good.

Drawings

The technical scheme of the utility model is further explained by combining the attached drawings as follows:

fig. 1 is a schematic sectional structural view of the explosion-proof wheel of the present invention.

In the figure: 1. sealing the tire on the outer side; 2. supporting the rim; 2-1, hollow tyre grooves; 2-2, sealing the flange; 2-3, valve holes; 2-4, fixing grooves of the air pressure sensor; 3. sealing the chamber; 4. a hollow tire; 4-1, a cavity; 4-2 and a vent hole.

Detailed Description

The present invention will be described in further detail with reference to the following specific examples.

An explosion-proof wheel as shown in figure 1 comprises a support rim 2, an outer side sealing tire 1 arranged on the support rim 2 and a hollow tire 4 arranged inside the outer side sealing tire 1; the hollow tire 4 does not work under the normal use state of the wheel, when the outer side sealing tire 1 is burst or air leaks, the inner tire surface of the part of the outer side sealing tire 1, which is contacted with the ground, can be naturally contracted to be contacted with the outer circular surface of the hollow tire 4 under the action of the gravity of the vehicle, and then the hollow tire 4 plays a role in supporting the vehicle.

The hollow tire 4 can be directly an inflation-free hollow tire produced by Jiangxi tire Limited company, and has the advantages of no need of inflation in the whole life, and complete avoidance of the hidden troubles of easy damage, easy explosion, tire change, core change, tire repair and air leakage of the traditional pneumatic tire. The flat tire vehicle can have the same continuous running function as a common tire in a certain speed range.

In order to reduce the production cost, the outer side sealing tire 1 directly adopts the pneumatic tire which is mature in the prior art and widely applied.

A sealed cavity 3 is formed among the outer side sealed tyre 1, the hollow tyre 4 and the support rim 2; the sealing chamber 3 is an inflating chamber of the outer side sealing tire 1, and the hollow tire 4 is positioned in the sealing chamber 3; the cavity 4-1 of the hollow tire 4 is communicated with the sealed chamber 3 through the vent hole 4-2.

For example, the cavity 4-1 of the hollow tire 4 comprises different section shapes, and the vent holes 4-2 are also arranged between the cavities 4-1 and used for balancing the internal pressure of the hollow tire 4 and the pressure between the sealing chambers 3, so that the hollow tire has good damping effect when the outer side sealing tire 1 is burst or leaks, and the comfort is improved.

The hollow tire 4 is provided with a vent hole 4-2 for balancing the internal and external pressures of the hollow tire 4. The vent holes 4-2 are designed into damping holes, and the air inside the vent holes can be released at a certain rate within a certain time when the outer side sealing tire 1 is punctured or leaks, so that the impact force of the outer side sealing tire 1 during tire puncture is relieved; if the outer seal tire 1 is merely deflated, the time for the deflation can be prolonged.

The hollow tyre 4 is an inflation-free hollow tyre, the interior of the hollow tyre comprises at least one cavity 4-1, and the cavity 4-1 is communicated with the sealed chamber 3 through a vent hole 4-2.

The cross section of the cavity 4-1 is circular, oval or triangular, and a rhombic section, a pear-shaped section or a heart-shaped section can be adopted, so that the hollow tire 4 can be ensured to have required strength, the consumption of materials is reduced, the elasticity of the hollow tire 4 can be improved, and the comfort is further improved.

And sealing flanges 2-2 are arranged on two sides of the support rim 2 and used for installing and fixing the outer side sealing tire 1. The middle part of the support rim 2 is provided with at least one hollow tire groove 2-1 for installing a hollow tire 4; the specific number of hollow tires 4 will vary for different requirements or types of run flat tires.

The bottom of the support rim 2 is provided with a valve hole 2-3; an air pressure sensor fixing groove 2-4 is arranged at the position of the valve hole 2-3. The valve hole 2-3 is used for installing a valve; the air pressure sensor fixing groove 2-4 is used for meeting the legal requirements of forced installation of the air pressure sensor.

The clearance between the inner wall of the outer side sealing tire 1 and the outer edge surface of the hollow tire 4 is 0.1-0.5 times of the width of the hollow tire 4. So as to balance the requirements of supporting force and assembly convenience.

The tread of the hollow tire 4 is provided with resistance increasing patterns so as to reduce the damage of driving force to the tire wall of the outer side sealing tire 1 when the outer side sealing tire 1 continuously runs when the tire is burst, and part of the driving force can be directly transmitted to the outer side sealing tire 1 by the resistance increasing patterns. The consumption of driving force can also be reduced.

A production method of an explosion-proof wheel comprises the following steps:

a) firstly, installing a hollow tire 4 in a hollow tire groove 2-1 of a support rim 2;

b) mounting the outer side sealing tire 1 on the support rim 2;

c) installing the air gate and filling air into the outside sealing tire 1 through the air gate, and completing the installation.

The hollow tire 4 can also be fixed on the support rim 2 in a 3D printing mode, and then the outer side sealing tire 1 is installed after the integral vulcanization treatment. In the specific 3D printing process, reference is made to a 3D printer for manufacturing the hollow rubber tire disclosed in Chinese patent application-201610129153.5 and a tire 3D printing system and a printing method disclosed in Chinese patent application 201910118554.4.

The above is only a specific application example of the present invention, and does not constitute any limitation to the protection scope of the present invention. All the technical solutions formed by equivalent transformation or equivalent replacement fall within the protection scope of the present invention.

Claims

1. An explosion-proof wheel, characterized in that: the hollow tire comprises a support rim, an outer side sealing tire arranged on the support rim and a hollow tire arranged inside the outer side sealing tire;

2. The explosion-proof wheel of claim 1, wherein: the hollow tire is an inflation-free hollow tire, and comprises at least one cavity inside, and the cavity is communicated with the sealed cavity through the vent hole.

3. An explosion-proof wheel as set forth in claim 2, wherein: the cross section of the cavity is circular, oval or triangular.

4. The explosion-proof wheel of claim 1, wherein: sealing flanges are arranged on two sides of the support rim, and at least one hollow tire groove is arranged in the middle of the support rim; the bottom of the support rim is provided with a valve hole; and an air pressure sensor fixing groove is arranged at the air valve hole.

5. The explosion-proof wheel of claim 1, wherein: the clearance between the inner wall of the outer side sealing tire and the outer edge surface of the hollow tire is 0.1-0.5 times of the width of the hollow tire.

6. The explosion-proof wheel as set forth in claim 1, wherein: and resistance increasing patterns are arranged on the tread of the hollow tire.