CN213007409U - Puncture-proof tyre - Google Patents

Abstract

The utility model discloses a puncture-proof tire, which comprises a rim, an outer tire and a multi-air-chamber inner tube arranged in the outer tire; the multi-air-chamber inner tube comprises a central air chamber and a plurality of micro air chambers which are arranged outside the central air chamber and are communicated with the central air chamber in a one-way mode; the communication direction is from the central air chamber to the micro air chamber; the central air chamber and the micro air chamber are elastic inflatable bodies which can be detached independently. The utility model adopts a central air chamber and a plurality of micro air chambers to jointly form a multi-air-chamber inner tube to replace the inner tube of a conventional tire, and a nail sharp object pierces the tire, only can injure one of the micro air chambers, can continuously run under the condition of not influencing the heavy load of the vehicle, and has the function of puncture prevention; the processing technology of the multi-air-chamber inner tube is equal to that of the conventional inner tube, and the manufacturing cost is relatively lower; the tire structure which is commonly used at present is continuously used, and the tire structure can be suitable for all types of vehicles and is more suitable for the mass market.

Description

Puncture-proof tyre

Technical Field

The utility model relates to a tire field, especially a prevent thorn tire.

Background

There are five types of puncture-proof tires that have been used in the society at present, three types of inflation types and two types of non-inflation types:

one is the use of relatively common self-supporting pneumatic tires. When the tire is designed and manufactured, two side walls of the tire are thickened and reinforced. When the tire is punctured and deflated, the thickened and reinforced tire side wall can support the vehicle and prevent the vehicle from being instable immediately, so that the safety of high-speed running of the vehicle is ensured, and the vehicle can run at a certain speed for a certain distance.

The defects are as follows: the vehicle using the tire needs to specially process a vehicle suspension system and a vehicle direction system, otherwise, the comfort and the direction sensitivity of the vehicle are affected, the running noise of the tire is higher, the oil consumption is higher, the tire almost loses the possibility of continuous safe use after running after one-time air leakage, and the use cost is higher because the basic price of the tire is higher, so the tire is generally used for high-grade vehicles and military vehicles.

Therefore, the self-supporting pneumatic tire has problems that not only the performance of the tire needs to be sacrificed, but also the manufacturing cost is high and the application range is small.

The second is self-repairing tyre. The inner surface of a common tire is coated with a layer of high polymer material coating, the material is soft solid colloid, the texture is soft, the density is high, the viscosity is strong, and after a nail is pricked, the inherent adhesiveness of the soft solid colloid can tightly wrap the nail body and block a gap which is possibly leaked; when the nail was pulled out, soft solid-state colloid can withdraw from the orbit along with the nail, and back stifled nail withdraws from the cavity that leaves, restores the tire and continues to use.

The defects are as follows: because the soft coating of the tire is difficult to be uniformly coated, the dynamic balance of the wheel during the running of the vehicle is influenced, and the phenomenon of shaking occurs at high speed; the high polymer non-solid material has high sensitivity to temperature, and the tire is subjected to severe cold and summer heat, so that the aging and the cracking of the soft solid polymer material can be accelerated, the original various performances of the soft solid polymer material are lost, the leak cannot be repaired quickly, and the service life is limited.

Therefore, the self-healing tire has a problem that not only the performance of the tire needs to be sacrificed but also the life is short.

And thirdly, the pneumatic tire is supported in an auxiliary mode. The auxiliary support pneumatic tire is arranged in a tire air chamber, an annular support pad is embedded in the middle of a rim, and the top of the support pad and the inner bottom of the tire keep a small distance in an inflated state. When the tire is punctured and deflated, the running vehicle utilizes the annular supporting pad to support the vehicle to run safely at a low speed, and possible accident injuries are avoided.

The defects are as follows: the weight of the wheel of the tire is increased, so that the driving control is influenced, the oil consumption of the vehicle is increased, the structure is complex, the installation is difficult, one tire is almost scrapped when the vehicle runs in the air leakage state, and the use cost is high.

Therefore, the auxiliary support pneumatic tire has a problem that not only the performance of the tire needs to be sacrificed but also the cost is high.

Fourthly, the solid tyre. The solid tire is a tire without an air chamber, is an industrial tire suitable for running vehicles under severe use conditions of low speed and high load, and is widely used for industrial vehicles, military vehicles, construction machinery and trailer vehicles at ports and airports. Is a tire suitable for the requirements of the small people.

Therefore, the solid tire has a problem that not only the tire performance is sacrificed but also the application range is small.

Fifthly, the non-pneumatic honeycomb tire. The air chamber of the non-inflatable honeycomb tyre is replaced by a honeycomb structure made of high polymer materials. The tire belongs to a test product and is not popularized and used. However, the tire is a heavy tire and a high-cost tire, so that the tire is not suitable for the use requirements of the mass market.

Therefore, the non-pneumatic honeycomb tire has the problems of high cost and small application range.

In summary, the existing puncture-proof tires not only need to sacrifice the performance of the tires, but also have the problems of higher cost, smaller application range or shorter service life.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a prevent thorn tire. The utility model discloses still have manufacturing cost and cost of maintenance homogeneous phase relatively lower, the wider advantage of range of application under the prerequisite of not sacrificing tire performance and can preventing the thorn.

The technical scheme of the utility model: a puncture-proof tire comprises a rim, an outer tire and a multi-air-chamber inner tube arranged in the outer tire; the multi-air-chamber inner tube comprises a central air chamber and a plurality of micro air chambers which are arranged outside the central air chamber and are communicated with the central air chamber in a one-way mode; the communication direction is from the central air chamber to the micro air chamber; the central air chamber and the micro air chamber are independent elastic inflatable bodies and are detachably connected with each other; the outer tire is a component which is arranged on the rim and is directly contacted with the bottom surface for use; the multi-air-chamber inner tube is a component for sealing high-pressure air by a plurality of air chambers in the outer tube.

In the anti-puncture tire, the central air chamber is provided with an air injection valve.

In the anti-puncture tire, the air injection valve is a bidirectional air injection valve; the bi-directional air injection valve can be used for injecting or discharging air.

In the anti-puncture tire, each micro air chamber is provided with a one-way check valve connected with the central air chamber.

In the anti-puncture tire, the central air chamber is an annular tubular body, the surface of the inner ring of the tubular body is provided with a bidirectional air injection valve, and the surface of the outer ring of the tubular body is provided with a plurality of one-way check valves.

In the aforementioned puncture-proof tire, each of the micro air chambers includes an air chamber portion and a one-way check valve sealing sleeve provided at an open end of the air chamber portion.

In the anti-puncture tire, a micro air chamber shrink collar is arranged at the joint of the air chamber part and the one-way check valve sealing sleeve.

In the anti-puncture tire, each one-way check valve is provided with a one-way check valve fixing nut, and the one-way check valve fixing nut fixes the one-way check valve on the central air chamber.

In the anti-puncture tire, each one-way check valve is internally provided with a one-way check valve air inlet hole which is L-shaped, and the one-way check valve air inlet holes are sealed through one-way check valve sealing sleeves.

In the anti-puncture tire, the joint of the central air chamber and the micro air chamber is provided with a plurality of layers of radial cord fabrics for reinforcement.

In the anti-puncture tire, the depth of the side edge of the rim is greater than or equal to the thickness of the central air chamber, so that the central air chamber can be protected by the rim, and the central air chamber cannot be directly damaged when the side surface is punctured and the like.

In the puncture-proof tire, the inflation quantity of the central air chamber accounts for 2% -80% of the total inflation quantity of the multi-air-chamber inner tube; and arranging central air chambers with different ratios according to actual needs.

Compared with the prior art, the utility model discloses an adopt a central air chamber and a plurality of little air chambers to constitute many air chambers inner tube of a tyre jointly and replace the inner tube of a tyre of conventional tire, when the tire during the driving meets nail class sharp object and impairs the tire, only can injure one of them little air chamber, even once hit by the rifle, also injure several little air chambers at most, tire atmospheric pressure loss can be ignored, can continue to travel under the condition that does not influence the vehicle heavy load, have the function of preventing stabbing;

the utility model adopts the multi-air chamber inner tube to replace the conventional inner tube, the processing technique of the multi-air chamber inner tube is equal to the processing technique of the conventional inner tube, no complex process transformation exists, and the manufacturing cost is relatively lower (compared with the prior puncture-proof tire);

the utility model discloses a conventional inner tube of a tyre is replaced to the many air chambers inner tube of a tyre, follows the tire structure (rim, cover tire, the inner tube of a tyre) with present general use, can be applicable to all various types of vehicles (motor vehicle, electric motor car, rickshaw etc.), compares current puncture-proof tire and more is fit for mass market.

Therefore, the utility model discloses still have manufacturing cost and cost of maintenance homogeneous phase relatively lower, the wider advantage of range of application under the prerequisite that does not sacrifice tire performance and can prevent stinging.

Further, the utility model discloses a many air chambers inner tube of a tyre belongs to pneumatic tire, when having solved that the tire prevents thorn, blast proof security, economic nature, has continued the good service property of pneumatic tire.

The side degree of depth of rim is more than or equal to the thickness of central air chamber, ensures that central air chamber can be protected by the rim, when meetting the circumstances such as side puncture, and central air chamber can not directly destroyed, has further improved the security of central air chamber, has promoted the utility model discloses a prevent stinging the performance.

The utility model discloses the little air chamber of part is in impaired back to can not influence the continuation use of many air chambers inner tube of a tyre, can remove the handling cost after the tire damages and hinder the running cost of stroke for the user from.

The utility model discloses can not take place because of the tire is punctured, blow out and cause the destructiveness under the abnormal conditions such as low tire pressure or no tire pressure to go, can prolong the life of tire.

The utility model discloses still can continue the safe handling after meeting the thorn and causing the damage of the little air chamber of part, so can remove spare tire's design from, reduce vehicle cost of manufacture.

The utility model discloses a processing technology is equal to conventional tire production completely, and the manufacturing enterprise connects the input, the technological transformation of complicacy that do not need professional equipment to produce, just can with low costs change the product the utility model discloses.

The utility model discloses little air chamber end is for taking the one-way check valve sleeve pipe of little air chamber collar, only needs to cup joint one-way check valve sleeve pipe on one-way check valve in the reverse direction, and little air chamber collar just can be with little air chamber lock solid on one-way check valve, need not to add and establishes other settings and just can be with the firm lock solid of little air chamber on one-way check valve, practiced thrift the cost. And the tire can be repaired only by directly replacing the damaged micro air chamber, so that the repair is convenient.

The utility model adopts multilayer meridian cord fabric to reinforce the part (the bottom formed by the outer ring) of the micro air chamber connected with the central air chamber, so that the deformation degree of the upper part of the central air chamber can be fit with the rim, and the lower part of the central air chamber is relatively firmer, thereby not only meeting the requirement of installing the micro air chamber, but also reducing the deformation degree and the ductility of the central air chamber and leaving enough extension space for the micro air chamber; when the air is inflated, the adjacent micro air chambers (especially when long micro air chambers are used) can be smoothly unfolded under the action of air, and the winding problem caused by the accumulation of the lack of space can be avoided.

The utility model discloses a central air chamber connects a plurality of micro-air chambers and becomes the many air chambers inner tube of a tyre, can adjust the volume of aerifing of central air chamber according to the needs of reality account for than guaranteeing under the principle that keeps central air chamber safety:

for military tires, because the central air chamber needs to face the environments such as war and the like, the central air chamber has the possibility of being punctured by bullets and the like, the proportion of the inflating quantity of the central air chamber can be reduced, even if the central air chamber is punctured, the tire pressure loss of the multi-air-chamber inner tube is small, and the continuous use is not influenced.

For civil tires, the bullet breakdown factor is not considered, and the probability of breakage of the central air chamber is almost 0, so that the proportion of the air inflation amount of the central air chamber can be properly increased, the adjustable amount of the central air chamber is increased, and the assembly and disassembly of the inner tube with multiple air chambers are facilitated.

Furthermore, the larger the proportion of the inflation quantity of the central air chamber is, the better the lateral stability of the tire is, because the inflation quantity of the central air chamber occupies most of the space of the tire, and the height of the micro air chamber positioned at the outer ring in the tire can only be reduced to adapt to a small space in design.

Because the air pressure in the central air chamber can be designed to be higher than that of the micro air chamber, the most flexible point of the tire can be designed at the section of the micro air chamber, the air inflation quantity of the micro air chamber is less than that of the central air chamber, the central air chamber is provided with an inner ring which is positioned in the tire, the bottom line of the central air chamber can extend below the middle line of the tire, the relatively flexible micro air chamber with low air pressure is positioned below the middle line of the tire, the stable point of the vehicle can move downwards, and the lower the stable point is, the better the lateral stability of the tire is.

The micro air chambers at relatively low air pressure are close to the tread, and the bumps on the road surface can be absorbed by the relatively soft micro air chambers, so that the comfort of the vehicle can be improved.

Drawings

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

fig. 2 is a schematic front view of the present invention;

FIG. 3 is a schematic view (partial) taken from the direction A of FIG. 1;

FIG. 4 is an enlarged schematic view (partial) of FIG. 2 at B;

fig. 5 is a schematic view of the structure of the micro air chamber of the present invention.

Reference numerals: 1-rim, 2-cover tire, 3-central air chamber, 4-micro air chamber, 41-one-way check valve sealing sleeve, 42-micro air chamber shrink neck ring, 5-air injection valve, 6-one-way check valve, 61-one-way check valve fixing nut and 62-one-way check valve air inlet hole.

Detailed Description

The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.

Examples are given. 1, the puncture-proof tire is characterized by comprising a rim 1, an outer tire 2 and a multi-air-chamber inner tube arranged in the outer tire 2, wherein the rim is provided with a plurality of air chambers; the multi-air-chamber inner tube comprises a central air chamber 3 and a plurality of micro air chambers 4 which are arranged outside the central air chamber 3 and are communicated with the central air chamber 3 in a one-way mode; the communication direction is from the central air chamber 3 to the micro air chamber 4; the central air chamber 3 and the micro air chamber 4 are independent elastic inflatable bodies, and the connection between the central air chamber and the micro air chamber is detachable.

The rim 1 is a general rim used in the current society, and the cover tire 2 is a general cover tire used in the current society.

And an air injection valve 5 is arranged on the central air chamber 3.

The air injection valve 5 is a bidirectional air injection valve.

Each micro air chamber 4 is provided with a one-way check valve 6 connected with the central air chamber 3.

The air injection valve 5, the two-way air injection valve and the one-way check valve 6 are all social and general tire components.

The central air chamber 3 is an annular tubular body, a bidirectional air injection valve is arranged on the surface of the inner ring of the tubular body, and a plurality of one-way check valves 6 are arranged on the surface of the outer ring of the tubular body.

Each of the micro air cells 4 includes a cell portion and a one-way check valve sealing sleeve 41 provided at an open end of the cell portion.

The connection of the said air chamber part and the one-way check valve sealing sleeve 41 is provided with a micro air chamber shrink collar 42.

Each of the one-way check valves 6 is provided with a one-way check valve fixing nut 61, and the one-way check valve fixing nut 61 fixes the one-way check valve 6 to the central air chamber 3.

Each one-way check valve 6 is internally provided with a one-way check valve air inlet 62, the one-way check valve air inlet 62 is L-shaped, and the micro air chamber 4 is locked on the one-way check valve 6 and is sealed by the one-way check valve sealing sleeve 41 which is reversely sleeved on the one-way check valve 6 and the micro air chamber shrink collar 42 after being sleeved.

And a plurality of layers of radial cord fabrics are arranged at the joint of the central air chamber 3 and the micro air chamber 4 for reinforcement.

The depth of the side edge of the rim 1 is greater than or equal to the thickness of the central air chamber 3.

The air inflation of the central air chamber 3 accounts for 2% -80% of the total air inflation of the inner tube with the multiple air chambers.

The utility model discloses inflation method does: when the wheel tire is mounted on the rim 1, the tire is inflated from the air injection valve 5 by using the air pressure provided by the air compressor, and the inflated air firstly enters the central air chamber 3; when the air pressure in the central air chamber 3 reaches the tire rated air pressure, the air pressure in the central air chamber 3 opens the one-way check valve 6 and simultaneously inflates all the micro air chambers 4.

In the inflation process, the micro air chamber 4 is inflated under the condition that the air pressure in the central air chamber 3 is greater than the rated air pressure, and the stable process lasts for a certain time according to different tire volumes.

When the stable point is broken and the air pressure in the central air chamber 3 continues to rise, the inflation operation is stopped first, the change of the air pressure in the central air chamber 3 is observed, if the air pressure in the central air chamber 3 is in a descending trend and returns to the vicinity of the rated pressure value, the micro air chamber 4 is not inflated to the rated pressure, the central air chamber 3 can be tried to be inflated continuously, and the change of the air pressure in the central air chamber 3 is observed continuously; if the air pressure value in the central air chamber 3 is always stabilized above the rated pressure value, the phenomenon shows that the air pressure in all the micro air chambers 4 reaches the rated pressure, at this time, the external inflation connector can be detached, the air injection valve 5 is opened, and the air pressure in the central air chamber 3 above the rated pressure is detached. At this point, wheel inflation is complete.

The utility model discloses installation method does: firstly, assembling the multi-air-chamber inner tube, taking a central air chamber 3 as a basis, firstly, installing an air injection valve 5 on the inner ring surface of the central air chamber 3 according to the requirements of a used rim 1, then, installing a one-way check valve 6 on the outer ring surface of the central air chamber 3 according to a reserved hole, fixing the one-way check valve 6 on the central air chamber 3 by using a one-way check valve fixing nut 61, then, reversely installing the micro air chamber 4 on the one-way check valve 6 by using a one-way check valve sealing sleeve 41, and locking the micro air chamber 4 on a valve body of the one-way check valve 6 by using a micro air chamber shrink collar 42, namely, completing the installation process of the multi-air-chamber inner tube by a factory; and then the uninflated multi-air-chamber inner tube is arranged in the outer tube 2, and the outer tube 2 is arranged on the rim 1 according to the tire mounting process and is inflated to the rated air pressure of the wheel.

The utility model discloses working process does: the embodiment of the utility model provides a being pricked in the use, generally can only pricking a little air chamber 4, its space that loses qi and leaves can be mended the position by little air chamber 4 in near place, does not influence and continues to use, also need not in time repair, only needs to pull out the foreign matter, and it can to supply tire pressure.

The utility model discloses overhaul the process and do: the embodiment of the utility model provides a by the thorn back, generally the condition can not have the reaction, so need inspect the tire surface and have or not pierce into hard thing, the interior air pressure of tire of inspection wheel through the air pressure in adjusting central air chamber 3, adjusts wheel safe pressure value. If the air pressure loss in the tire is found to be more, firstly, air supplement treatment is carried out, and if the tire is inflated to a rated pressure value, the pressure of the tire can be kept unchanged, so that the tire can be continuously used; if the tyre is inflated to the rated pressure value and cannot be stably maintained, the pressure value descends, and the tread of the tyre 2 is checked to see whether the tyre is pierced by too many sharp objects, too many micro air chambers are lost or the central air chamber 3 is damaged. If so, the wheel must be removed and the multi-chamber inner tube repaired.

The utility model discloses repair method does: the punctured position of the wheel is checked and marked so as to take out the foreign matters. The air in the central air chamber 3 is discharged, the inner and outer tire combination is detached from the rim 1, then the multi-air-chamber inner tire is taken out from the outer tire 2, the micro air chamber 4 uses the one-way check valve 6, the air in the multi-air-chamber inner tire cannot be discharged, the multi-air-chamber inner tire only discharging the air in the central air chamber 3 is difficult to integrally take out, the micro air chamber 4 with one line at the side can be detached from the one-way check valve 6 firstly, then the multi-air-chamber inner tire is taken out, the punctured micro air chamber 4 is replaced, the deformed or damaged micro air chamber 4 is inspected and replaced together, a new micro air chamber 4 is installed, the working state of the central air chamber 3 is inspected, and if air leakage exists, the repairing treatment can be carried out. And after the maintenance is finished, the product is installed back as it is.

Claims (9)

1. A puncture-proof tire is characterized in that: the tyre comprises a rim (1), an outer tyre (2) and a multi-air-chamber inner tube arranged in the outer tyre (2); the multi-air-chamber inner tube comprises a central air chamber (3) and a plurality of micro air chambers (4) which are arranged outside the central air chamber (3) and are communicated with the central air chamber (3) in a one-way mode; the communication direction is from the central air chamber (3) to the micro air chamber (4); the central air chamber (3) and the micro air chamber (4) are independent elastic inflatable bodies.

2. A puncture resistant tire according to claim 1, wherein: and an air injection valve (5) is arranged on the central air chamber (3).

3. A puncture resistant tire according to claim 2, wherein: the air injection valve (5) is a bidirectional air injection valve.

4. A puncture resistant tire according to claim 1, wherein: each micro air chamber (4) is provided with a one-way check valve (6) connected with the central air chamber (3).

5. A puncture resistant tire according to claim 4, wherein: each micro air chamber (4) comprises an air chamber part and a one-way check valve sealing sleeve (41) arranged at the open end of the air chamber part.

6. A puncture resistant tire according to claim 5, wherein: and a micro air chamber shrink collar (42) is arranged at the joint of the air chamber part and the one-way check valve sealing sleeve (41).

7. A puncture resistant tire according to claim 1, wherein: and a plurality of layers of radial cord fabrics are arranged at the joint of the central air chamber (3) and the micro air chamber (4) for reinforcement.

8. A puncture resistant tire according to claim 1, wherein: the depth of the side edge of the rim (1) is greater than or equal to the thickness of the central air chamber (3).

9. A puncture resistant tire according to any one of claims 1 to 7, wherein: the air inflation amount of the central air chamber (3) accounts for 2% -80% of the total air inflation amount of the multi-air-chamber inner tube.

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