CN2797093Y

CN2797093Y - Leak proof tyre

Info

Publication number: CN2797093Y
Application number: CN 200520040897
Authority: CN
Inventors: 田镇平
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-04-15
Filing date: 2005-04-15
Publication date: 2006-07-19
Anticipated expiration: 2015-04-15

Abstract

The utility model discloses a leak-proof tyre, comprising an inner layer of the tyre and an outer layer of the tyre. An air barrier is equipped between the inner layer of the tyre and the outer layer of the tyre. The utility model has the advantage that when the tyre pressure is over the certain limit or the moving vehicle is impacted by the ground so the tyre pressure is over the certain limit, the air barrier still keeps a certain crease allowance to obstruct efficiently air leaking from the rubber layer to provide the best air-protecting performance and keep the tyre in the best using state for a long time.

Description

Prevent flat

Technical field

The utility model relates to a kind of flat that prevents.

Background technology

The wheel of present automobile, self-propelled vehicle and bicycle great majority adopt tubeless tire, and this type of tubeless tires forms micro-pore through air pressure or expanding with heat and contract with cold of being caused by the weather temperature difference, thereby can produce chronic leakage, may cause danger.

Existing tubeless tires is not have defective, and its chronic disappointing problem after inflation causes an implicit crisis to the user of tubeless tires.The generation of the problem of should losing heart is to be caused by reasons such as the structure design of such tire and texture materials.See also Fig. 1 and 2, existing tire 10 is the rubber material, and its rubber ingredient 11 is the state of tight joint before the unaerated; After inflation, air pressure expands outwardly, and the rubber ingredient 11 of originally combining closely is drawn in support produce pore 12 under the start, causes the problem of leaking gas.Though existing tubeless tires can be kept preferable air-tightness after inflation, yet in travelling in the future, owing to expanding with heat and contract with cold that ground-surface bump, mill squeeze, the natural climate temperature difference causes, also may make pore generate increasing gradually, cause the air-tightness of tire day by day to reduce, cause tire to lose heart, thereby cause the tire pressure deficiency, increase the misgivings on the traffic safety.

Summary of the invention

The purpose of this utility model is to overcome the defective of above-mentioned prior art, and a kind of flat that prevents is provided.

The purpose of this utility model is achieved in that this prevents that flat from including inner layer of tire and wheel outer casing, is provided with an air-retaining liner between this inner layer of tire and the skin.

Wherein, this air-retaining liner is made of with polytropism gauffer kenel the thin material of high-air-tightness.

This air-retaining liner is arranged in the inboard any rete of tire.

This air-retaining liner fits tightly in the tire upper limb, and remainder is the tectonic relationship that separates with the tire tissue, and the middle section position of this air-retaining liner has the fold part of the wrinkle Zhe form that is the ∩ type.

Positive progressive effect of the present utility model is: because the mid-air-retaining liner that is provided with polytropism wrinkle Zhe kenel of any skim of inside tires, when treating that the tire air inlet is glutted, this air-retaining liner can smooth-going slow Shu Shenzhan.Even if it is saturated that tire has reached, this air-retaining liner is not opened up fully yet and is stretched out, and also leaves certain elastic telescopic nargin and fold space, the air-retaining liner that is not strutted fully provides excellent air barriering effect, thereby avoid tire flat effectively, keep normal tire pressure, promote the safety of moving traffic.This tire is after inflation, even suffer air pressure inside or external force effect, inside tires all can obtain best airtight barriering effect, stops contingent gas leak phenomenon.

Description of drawings

Fig. 1 has the structural representation of inner tube free bike tyre under the unaerated state now;

Fig. 2 has the structural representation of inner tube free bike tyre under inflated condition now;

Fig. 3 structural relation scheme drawing that prevents flat of the present utility model;

The structural relation scheme drawing of Fig. 4 the utility model one preferred embodiment under the unaerated state;

The structural relation scheme drawing of Fig. 5 the utility model Fig. 4 embodiment under inflated condition;

The structural relation scheme drawing of another preferred embodiment of Fig. 6 the utility model under the unaerated state;

The structural relation scheme drawing of Fig. 7 the utility model Fig. 6 embodiment under inflated condition.

The specific embodiment

Reach the aspect about structure composition of the present utility model, technological means and effect, now further specify as follows in conjunction with the accompanying drawings:

At first, see also Fig. 3,4 and 5, the flat that prevents of the present utility model, on structure design, it mainly is the air-retaining liner 22 of establishing a wrinkle Zhe fold in the inside tires layer, it adopts the thin material of high-air-tightness to be arranged to polydirectional wrinkle Zhe kenel, be laminated with in 25 of the internal layers of tire, in this constitute an air-tightness splendid prevent air releasing device.

The fold nargin of this air-retaining liner 22 stretches for smooth-going behind the inflation of tire masterlyly.When air pressure expansion tire, air-retaining liner 22 will moderately stretch with tire pressure.Even the tire pressure value of being above standard, the wrinkle Zhe kenel of this air-retaining liner 22 still can remain under the state that is not strutted fully, thereby can stop air by oozing out in the glue fetal hair pore by actv..Even in the middle of tire running start process, wheel outer casing 20 and tread 21 outer layer surfaces reach day and night colding and heat succeed each other of the temperature difference to the bump of roughness pavement, the wrinkle Zhe structure of this air-retaining liner 22 still also has flexible nargin, can keep good airtight conditions, tubeless tires goes out the caused problem of pore because of air penetration in the tire in the prior art thereby solved effectively.

See also Fig. 6,7 again; scheme drawing for another preferred embodiment of the utility model; on structure design; this air-retaining liner 22 is done with tire upper limb 23 and is fitted tightly; both do not connect in the remainder separation, and air-retaining liner 22 middle section positions present the ∩ type fold part 24 of protuberantia complications, stretch well down in inflation for tire; to provide air-tightness splendid protection, stop contingent gas leak phenomenon.

Via above explanation, the utility model is at the structural improvement design that prevents that flat from doing as can be known, the air-retaining liner of polydirectional wrinkle Zhe kenel is replaced the air-retaining liner design of tubeless tires in the prior art, borrow it to stretch the fold of elastic telescopic, splendid choke effect after inflatable dilatation is provided, under the effect of travelling, effectively keep the air-tightness in the tire use, not reason external force effect and produce the defective of gas leakage, efficiently solve existing structure the problems that may cause, thereby can keep normal tire pressure and increase the driving process safe.

Claims

1, a kind of flat that prevents, it includes inner layer of tire and wheel outer casing, it is characterized in that: be provided with an air-retaining liner between this inner layer of tire and the skin.

2, the flat that prevents according to claim 1 is characterized in that this air-retaining liner is made of with polytropism gauffer kenel the thin material of high-air-tightness.

3, the flat that prevents according to claim 2 is characterized in that this air-retaining liner is arranged in the inboard any rete of tire.

4, the flat that prevents according to claim 2 is characterized in that this air-retaining liner fits tightly in the tire upper limb, and remainder is the tectonic relationship that separates with the tire tissue, and the middle section position of this air-retaining liner has the fold part of the wrinkle Zhe form that is the ∩ type.