multi-block safety tire air pressure balancing method
Technical Field
the invention belongs to the technical field of transportation, and particularly relates to a multi-block safety tire air pressure balancing method.
Background
The existing general automobile tires are inevitably punctured by sharp objects such as iron nails, glass and the like during running to cause air leakage and tire burst, and some automobile tires are punctured for more than dozens of times from use to scrap, so that huge workload is brought to the maintenance and tire repair, and great difficulty and inconvenience are brought to drivers. More importantly, the tire burst and the air leakage of the automobile during the running process can cause the unbalance of the automobile during the running process, the driver is difficult to master the direction, and safety accidents are easy to cause, which is extremely dangerous.
In order to prevent the tire from reducing air pressure after being pricked and even preventing the tire from being burst, the invention provides a burst-proof tire. The explosion-proof tire is provided with a plurality of inflatable layers, the inflatable layer on the outer ring of the tire is provided with a plurality of independent small air bags, when the tire is punctured, one small air bag is punctured to cause air leakage, and other small air bags and other inflatable layers still work normally. However, the problem of inflating each inflatable layer is caused by the layered tire. For example, chinese patent 201420770147.4 discloses a novel tire with a small air bag automatic inflation structure, which comprises a rubber tire, a small air bag layer (i.e. an explosion-proof layer), a hollow layer and a metal hub, which are sequentially connected from outside to inside, wherein a one-way valve is installed at the joint of each small air bag of the small air bag layer and the hollow layer, and the one-way valve automatically inflates the small air bag but cannot allow the air in the small air bag to flow back. However, since the air pressure of the hollow layer can be used for inflating the small air bags through the one-way valves, once the pressure of each small air bag is reduced during air leakage, the air in the hollow layer can be automatically inflated to the small air bags under the action of the pressure until the air in the hollow layer is discharged to the normal pressure through the small air bags, and the tire pressure of other small air bags is still kept in a high-pressure state, so that the air pressure of the hollow layer and the small air bags is unbalanced, and great influence is caused on the balance and safety of the vehicle in running. If set up to the mode of aerifing alone small air bag layer and hollow layer, need set up a plurality of inflation valves, still can't keep the tire pressure balance of small air bag layer and hollow layer when aerifing respectively.
disclosure of Invention
The invention provides a multi-block safety tire air pressure balancing method aiming at the defects in the prior art, which is used for solving the problem that the tire pressure of each inflatable layer cannot be balanced and stable in the inflating and using processes of a tire.
The purpose of the invention is realized by the following technical scheme: the method for balancing the air pressure of the multi-block safety tire comprises the following steps:
Firstly, arranging an air bag layer and a hollow layer on a tire;
The air bag layer is arranged on the outer ring of the tire and consists of a plurality of independent small air bags;
Secondly, arranging an air pressure balance layer which can inflate the air bag layer and the hollow layer in a single direction between the air bag layer and the hollow layer;
Thirdly, inflating the air pressure balance layer to improve the air pressure of the layer;
And fourthly, the air in the air pressure balance layer is inflated to each small air bag and the hollow layer in a one-way mode, so that the air pressure of the air pressure balance layer, the air bag layer and the hollow layer is kept consistent.
preferably, the hollow layer is provided with a gas discharge valve, and gas in the hollow layer can be discharged through the gas discharge valve.
Preferably, the air pressure balancing layer is provided with an inflation and deflation valve.
Preferably, the inflation and deflation valve comprises a valve and an outer air channel arranged outside the valve, and the valve is connected with the air pressure balancing layer and used for adjusting the air pressure of the air pressure balancing layer; the outer air duct is communicated with the hollow layer and is used for adjusting the air pressure of the hollow layer; the outer gas duct is provided with an isolating device for isolating the hollow layer from being communicated with the outside, and the gas in the hollow layer can be discharged by opening the isolating device.
Preferably, the air bag layer in the first step comprises a plurality of small air bags with different shapes and sizes. .
preferably, the pressure control range of the air pressure for inflating the air pressure balancing layer in the third step is 0.1-1.2 MPa.
Preferably, a check valve is arranged between the air pressure balance layer and each small air bag and the hollow layer of the air bag layer in the fourth step, and the air in the air pressure balance layer automatically inflates each small air bag and the hollow layer of the air bag layer through the check valve until the air pressures of the small air bags and the hollow layer are consistent.
preferably, the air bag layer is formed by integrally injection molding a plurality of small air bags.
Preferably, the small balloon may be a cylinder or a polyhedron.
The invention also provides a multi-block safety tire adopting the air pressure balancing method.
Compared with the prior art, the invention has the following beneficial effects:
1. by additionally arranging the air pressure balance layer, the hollow layer is prevented from being directly connected with the air bag layer, and the air tightness of the hollow layer is improved; meanwhile, the air leakage of the hollow layer directly communicated with the air bag layer caused by the damage of individual small air bags of the air bag layer is avoided.
2. The air is inflated to the air pressure balance layer through the air inflation and deflation valve, and then the one-way valve respectively inflates the air bag layer and the hollow layer in a single-phase mode, so that the air pressure of the air bag layer, the air pressure balance layer and the hollow layer can be kept consistent. Meanwhile, the air pressure balance layer can inflate the hollow layer in real time through the one-way valve, so that the condition that the air pressure in the tire is sharply reduced due to damage of the hollow layer is avoided.
3. The tire is provided with the air bag layer, when the crown of the outer tire and the individual small air bags are punctured by foreign matters, the structures of the rest small air bags and the hollow layer are not damaged, so that the integral supporting force of the tire is not influenced, and the tire can be normally used. When the hollow layer is damaged, the air bag layer can provide certain supporting force, and the tire cannot be completely incapable of working. Meanwhile, the air bag layer avoids the phenomenon that the air in the tire of the traditional tire is reduced, and the supporting force difference of the four wheels is too large, so that the vehicle loses balance.
Drawings
FIG. 1 is a schematic view of a multi-block run-flat tire.
FIG. 2 is a schematic diagram of the multi-block run-flat tire inflation and deflation valve.
The air valve comprises a valve body 1, an air channel 2, an air pressure balance layer 3, a hollow layer 4, an isolation device 5, an elastic mechanism 6, an outer sleeve 7, an exhaust hole 8, an isolation valve 9, a sealing gasket 10, an ejector pin 11, an outer cover 15, an air bag layer 16, a metal hub 17, an air bag 18, an inflation and deflation valve 19 and a one-way valve 20.
Detailed Description
The present invention will be further described with reference to the following embodiments. Wherein the showings are for the purpose of illustration only and are shown by way of illustration only and not in actual form, and are not to be construed as limiting the present patent; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
example 1
The embodiment provides a multi-block safety tire pressure balancing method, which comprises the following steps:
Firstly, arranging an air bag layer 16 and a hollow layer 4 on a tire; the air bag layer 16 is arranged on the outer ring of the tire and is composed of a plurality of independent small air bags 18;
In the first step, the air bag layer comprises a plurality of small air bags with different shapes and sizes. .
Secondly, arranging an air pressure balance layer 3 which can inflate the air bag layer 16 and the hollow layer 4 in a single direction between the two layers;
Thirdly, inflating the air pressure balancing layer 3 to improve the air pressure of the layer;
The pressure of the air pressure to be inflated into the air pressure equalizing layer 3 in the third step is usually controlled within the range of 0.1 to 1.2 MPa.
fourthly, the air in the air pressure balance layer 3 inflates the small air bags 18 and the hollow layer 4 of the air bag layer 16 in a single direction, so that the air pressure of the air pressure balance layer 3, the air bag layer 16 and the hollow layer 4 is kept consistent.
In the fourth step, a one-way valve 20 is arranged between each small air bag 18 and the hollow layer 4 of the air pressure balance layer 3 and the air bag layer 16, and the air in the air pressure balance layer 3 automatically inflates each small air bag 18 and the hollow layer 4 of the air bag layer 16 through the one-way valve 20 until the air pressures of the three layers are consistent.
A multi-block run-flat tire including the air bag layer 16, the air pressure equalizing layer 3, and the hollow layer 4 is previously constructed. The multi-block safety tire comprises an outer tire 15, an air bag layer 16, an air pressure balance layer 3, a hollow layer 4 and a metal hub 17 which are arranged in sequence from outside to inside. The outer tire 15 in this embodiment is of an existing radial tire structure, and different radial tire products have different lengths in various performances, but can be applied to the tire by slightly changing the process. The tire has safety performance, the original performance of the tire is hardly influenced, and various advantages of the original tire are reserved. Because the tyre is specially provided with the high-safety air bag layer 16, the puncture-proof grade of the outer tyre can be properly reduced, the radial tyre with a multilayer structure is adjusted, the internal structure of 1-2 layers is reduced, the production cost is reduced on the basis of not influencing the safety performance, and the weight of the tyre is lightened.
The air bag layer 16 comprises a plurality of small air bags 18, and is formed by integrally injection molding by using a high-air-tightness butyl rubber material, or can be formed by bonding and splicing a plurality of small air bags 18. Wherein the number of the small air bags 18 is from dozens to dozens, and the number of the small air bags 18 is adjusted according to the requirements of different working environments on the supporting force of the tire. The shape of the small cells 18 of the cell layer 16 may be a cylinder, a pentagonal prism, a hexagonal prism, or other types of polyhedrons, wherein each of the small cells 18 may be the same size and the same shape; or different sizes and same shapes; can be in different shapes and same size; or may be different in size and shape. The small air bags 18 are erected on the outer surface of the air pressure balancing layer 3 along the radial direction of the tire, namely, the height of the small air bags 18 is parallel to the radius of the tire. The whole air bag layer 16 is in a honeycomb shape, so that the compactness of the structure is enhanced, and the supporting force of the air bag layer 16 is improved.
The air pressure balancing layer 3 is provided with an air charging and discharging valve 19 connected with the air pressure balancing layer, and the air charging and discharging valve 19 is used for charging air into the air pressure balancing layer 3 from the outside or discharging air in the air pressure balancing layer; the air pressure balancing layer 3 is also provided with a one-way valve 20 connected with each small air bag 18 and the hollow layer 4, and the one-way valve is used for the air pressure balancing layer 3 to inflate each small air bag 18 and the hollow layer 4 in a one-way mode. The air pressure balance layer 3 is also provided with a tire pressure monitoring device for detecting the pressure intensity in the tire.
The structure of the hollow layer 4 is basically the same as that of a single inflation cavity of the existing tire without an inner tube, but the difference is that the volume of the hollow layer 4 is greatly reduced compared with that of the single inflation cavity of the conventional tire because the multi-block airbag layer 16 is additionally arranged. The hollow layer 4 is provided with an exhaust valve for exhausting gas in the hollow layer when the tire pressure is too high.
The inflating device inflates the air pressure balance layer 3 through the inflating and deflating valve 19, the air pressure balance layer 3 inflates the small air bags 18 of the air bag layer 16 and the hollow layer 4 through the one-way valves 20 respectively, after inflation is completed, the air pressures of the air bag layer 16, the air pressure balance layer 3 and the hollow layer 4 are kept consistent, and the tire mainly works by the supporting force provided by the inflated air bag layer 16, the air pressure balance layer 3 and the hollow layer 4 together. The air pressure in the tire is detected by the tire pressure monitoring device, so that the control range of the air pressure in the air pressure balancing layer 3 is 0.1-1.2 MPa. When the tire is at atmospheric pressure, i.e., when the tire is not being inflated, the tire operates primarily with the support provided by the individual small cells 18 of the cell layer 16. When the air pressure in the tire is too high, the air in the air pressure balance layer 3 can be discharged through the air charging and discharging valve 19, and the air in the hollow layer can also be discharged through the air discharging valve, so that the tire pressure in the tire can be adjusted.
By additionally arranging the air pressure balance layer 3, the hollow layer 4 is prevented from being directly connected with the air bag layer 16, and the air tightness of the hollow layer 4 is improved; while avoiding deflation of the hollow core 4 in direct communication therewith due to breakage of the individual cells 18 of the cell layer 16. The air pressure balance layer 3 can inflate the hollow layer 4 in real time through the check valve 20, and can inflate the hollow layer 4 when the hollow layer 4 is damaged, so that the situation that the air pressure in the hollow layer 4 is sharply reduced is avoided. The tire is provided with the air bag layer 16, when the crown of the outer tire 15 and the individual small air bags 18 are punctured by foreign matters, the structures of the rest small air bags 18 and the hollow layer 4 are not damaged, so that the integral supporting force of the tire is not influenced, and the tire can be normally used. When the hollow layer 4 is damaged, the air bag layer 16 can provide a certain supporting force, and the tire cannot be completely out of work. Meanwhile, the air bag layer 16 avoids the phenomenon that the air in the tire of the traditional tire is reduced, and the supporting force of four wheels is too different, so that the vehicle loses balance.
Example 2
As shown in fig. 2, the present embodiment is different from embodiment 1 in that an inflation and deflation valve 19 is provided, which comprises a valve 1 and an outer air duct 2 arranged outside the valve 1, wherein the valve 1 is connected with an air pressure balancing layer 3 for adjusting the air pressure of the air pressure balancing layer 3; the outer air duct 2 is communicated with the hollow layer 4 and is used for adjusting the air pressure of the hollow layer 4; the outer gas channel 2 is provided with an isolating device 5 for isolating the hollow layer 4 from communicating with the outside, and the isolating device 5 is opened to release the gas in the hollow layer 4.
The valve 1 generally comprises a valve body and a valve core; the valve core is positioned in the valve body and is mainly used for realizing air intake of the tire and preventing air leakage of the tire; the outer wall of the valve 1 is provided with threads which can be used for connecting an inflating device and can also be used for installing a valve cap. The valve 1 may also be an existing american valve or french valve structure.
The valve 1 is provided with a concentric outer sleeve 7 on the outside, and the passage between the outer sleeve 77 and the outer wall of the valve 1 forms an outer air duct 2. An air outlet which can lead the outer air duct 2 to be communicated with the outside is arranged at the connecting part of the outer sleeve 7 and the inflating valve 1. An isolating device 5 is arranged between the outer casing 7 and the inflating valve 1, the isolating device 5 comprises a spring sleeved outside the inflating valve 1 and an isolating valve 9 connected with the spring, and the isolating valve 9 is used for blocking an air outlet of a connecting part of the outer casing 7 and the inflating valve 1 so as to control the communication between the hollow layer 4 and the outside. The outer casing 7 is provided with a sealing gasket 10 at the position of being tightly pressed and connected with the isolation valve 9, the air tightness of the isolation valve 9 is enhanced, the isolation valve 9 is provided with a thimble 11 extending out of the air outlet, when the air in the hollow layer 4 needs to be discharged, the thimble 11 is pressed, the isolation valve 9 is separated from the sealing gasket 10, and therefore the hollow layer 4 is communicated with the outside.
The inflating device is fixedly connected with the inflating valve 1 through threads, and meanwhile, the valve core is pushed away from the original position, so that air can enter the air pressure balance layer 3 of the tire through the part where the valve core is separated from the inflating valve body. After the inflation is finished and the inflation device is taken away, the valve inside returns to the original position under the combined action of the pressure in the tire and the elastic device 6, and the air pressure balance layer 3 is isolated from being communicated with the outside. When the tire pressure monitoring device finds that the air pressure in the tire is too high and needs to deflate the tire, the valve inside can be ejected away from the original position again through an external device, so that the air pressure balance layer 3 is communicated with the outside, and the air pressure in the layer is higher than the outside air pressure, so that the air leakage operation can be completed. When the hollow layer 4 of the tire needs to be depressurized and deflated, an acting force is externally given to the ejector pin 11 connected with the isolation valve 9, the isolation valve 9 is ejected away from the original position, so that the outer air duct 2 is communicated with the outside through the air outlet, and the outer sleeve 7 is provided with the exhaust hole 8, so that the air of the hollow layer 4 can enter the outer sleeve 7 through the exhaust hole 8 and then be exhausted to the outside through the air outlet. When the air leakage of the hollow layer 4 is completed, the acting force applied to the thimble 11 is removed, so that the isolation valve 9 is pressed with the sealing washer 10 of the outer-layer sleeve 7 again under the action of the spring and the internal pressure of the outer channel 2 to block the air outlet, and the outer channel 2 is isolated from being communicated with the outside.
The inflation and deflation valve 19 can select a proper deflation mode according to the pressure in the tire, and when the air pressure in the air pressure balance layer 3 needs to be deflated, the inflating valve 1 can be used for relieving the pressure; when the air pressure of the hollow layer 4 needs to be released, the outer air channel 2 can be used for releasing the pressure; when the air pressure range needs to be adjusted to be small, the air valve 1 or the outer air duct 2 can be independently used for pressure relief; when the range of the air pressure needing to be adjusted is large, the air valve 1 and the outer air duct 2 can be used for simultaneously releasing the pressure. The flexibility of the pressure relief mode is increased, and the pressure relief efficiency is improved.
The same or similar reference numerals correspond to the same or similar parts; the positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent. It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.