A multi-airbag safety tire

Abstract

The present invention discloses a multi-airbag safety tire, comprising a tire, a hub, M spokes, a rim, a power connection port, an air valve, and N buffer support modules uniformly arranged circumferentially between the tire and the hub. The buffer support modules comprise airbags, a support cover, a buffer body, a support shaft, a support cylinder, and a preload spring. The present invention places the internal air in the tire within the multiple airbags. The support shafts and support cylinders cooperate to provide emergency response in the event of an airbag rupture. The present invention reduces the rate of tire pressure loss and the frequency of inflation, allowing the vehicle to continue driving while maintaining good dynamic response characteristics even after a tire leaks.

Description

Technical Field

[0001] The present invention relates to the technical field of tires, and in particular to a multi-airbag safety tire. Background Art

[0002] Since their invention, tires have evolved over the centuries, resulting in a variety of tire types. Pneumatic tires are currently the most widely used, offering excellent cushioning, low rolling resistance, and excellent comfort and economy. However, precisely because they require inflation, air molecules are so small that they can escape through the gaps between the rubber molecules, reducing tire pressure and necessitating frequent inflation. Furthermore, pneumatic tires are not particularly safe and can be punctured by hard objects like glass, leading to significant air leakage and even the risk of a blowout, compromising safe driving.

[0003] Patent No. CN201272206Y discloses a multi-cavity tire inner tube. This patent uses a multi-cavity structure to maintain the balance of a vehicle in the event of a tire blowout. However, this technology can only maintain the balance of the vehicle in the event of a tire blowout and cannot allow the vehicle to continue driving.

[0004] Chinese patent document CN106274297B discloses a tire with a multi-tube structure. Multiple inner partitions are arranged equidistantly along the axis of the outer tube, dividing the interior of the outer tube into multiple chambers, each housing an inner tube. However, this technical solution only creates multiple chambers and fails to provide further measures to prevent air leaks and blowouts, ensuring smooth driving. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to address the defects involved in the background technology and provide a multi-airbag safety tire that can slow down the rate of tire pressure reduction, reduce the inflation frequency, and replace the airbag with an emergency auxiliary structure when the tire is punctured by a hard object to ensure safety.

[0006] The present invention adopts the following technical solutions to solve the above technical problems:

[0007] A multi-airbag safety tire comprises a tire, a hub, M spokes, a rim, a power connection port, an air valve, and N buffer support modules;

[0008] The M spokes are coplanar and circumferentially evenly arranged between the hub and the rim, with one end of each spoke being fixedly connected to the outer wall of the hub and the other end being fixedly connected to the inner wall of the rim;

[0009] The wheel rim is evenly provided with N mounting holes circumferentially corresponding to the buffer support modules;

[0010] The N buffer support modules are evenly arranged between the tire and the wheel hub in the circumferential direction, and the buffer support modules include an airbag, a support cover, a buffer body, a support shaft, a support cylinder and a pre-compression spring;

[0011] The airbag is arranged between the tire and the rim and is in an inflated state;

[0012] The outer side of the support cover abuts against the airbag, and the inner side fits outside the wheel hub, and its area is larger than the mounting hole corresponding to the buffer support module on the wheel hub;

[0013] The buffer body is arranged in the mounting hole, with its outer side fixedly connected to the center of the inner wall of the support cover and its inner side fixedly connected to the outer end of the support shaft, for buffering the impact force transmitted from the support cover to the support shaft;

[0014] The support shaft includes a first shaft portion and a second shaft portion, the first shaft portion and the second shaft portion are both cylindrical, and the cross-sectional area of ​​the first shaft portion is larger than that of the second shaft portion; a section of the first shaft portion is fixedly connected to the buffer body, and the other end is coaxially fixedly connected to one end of the second shaft portion; a limiting through-hole is provided on the side wall of the second shaft and is perpendicular to its axis, and a first limiting slider, a second limiting slider and a limiting spring are provided in the limiting through-hole; the first limiting slider and the second limiting slider are both able to slide freely along the limiting through-hole; the limiting spring is arranged between the first limiting slider and the second limiting slider, one end of the limiting spring is fixedly connected to the first limiting slider, and the other end of the limiting spring is fixedly connected to the second limiting slider, and is in a compressed state;

[0015] The support cylinder includes a first cylinder portion and a second cylinder portion, both of which are hollow cylinders with openings at both ends. The inner diameter of the first cylinder portion is larger than that of the second cylinder portion, and one end of the first cylinder portion is coaxially fixedly connected to one end of the second cylinder portion, and the other end of the second cylinder portion is fixedly connected to the wheel hub, wherein the first cylinder portion is used to cooperate with the first shaft portion so that the first shaft portion can slide freely in the first cylinder portion; the second cylinder portion is used to cooperate with the second shaft portion so that the second shaft portion can slide freely in the second cylinder portion;

[0016] The first shaft portion is located in the first cylindrical portion, and one end of the first shaft portion away from the buffer body abuts against one end of the second cylindrical portion away from the wheel hub; the preload spring is arranged in the second cylindrical portion, one end abuts against the wheel hub, and the other end abuts against one end of the second shaft portion away from the first shaft portion, and is in a compressed state;

[0017] The power connection port is arranged on the inner wall of the hub;

[0018] The airbags of the N buffer support modules are all connected by pipes, and electromagnetic valves are provided in the pipes; the electromagnetic valves in the pipes between the airbags of the N buffer support modules are electrically connected to the power connection port through wires, and are closed when not powered and open when powered;

[0019] The valve is arranged on the inner wall of the wheel hub, and the airbags of one of the buffer support modules are connected, and is used to inflate the airbags of N buffer support modules when the solenoid valves in the pipelines between the airbags of N buffer support modules are all opened.

[0020] As a further optimization solution of the multi-airbag safety tire of the present invention, the buffer body adopts a mechanical elastic structure or a honeycomb structure of rubber material.

[0021] As a further optimization solution of the multi-airbag safety tire of the present invention, the N buffer support modules and the M spokes are not coplanar.

[0022] As a further optimization solution of the multi-airbag safety tire of the present invention, N is set to 12.

[0023] Compared with the prior art, the present invention adopts the above technical solution and has the following technical effects:

[0024] 1. During normal driving, the airbags in the multiple cushioning support modules inside the tire provide excellent cushioning, low rolling resistance, and excellent comfort and economy.

[0025] 2. As the air in the cushioning support modules gradually loses air and tire pressure drops, the pressure on the support cover decreases. The preload spring's force is greater than the pressure on the support cover. The secondary spring lifts the support shaft, squeezing the airbag and increasing the air pressure inside. This slows the rate of tire pressure drop and reduces the frequency of tire inflation.

[0026] 3. If the tire is punctured by a hard object and the inner bladder is also punctured, the gas in the punctured bladder will leak out at a faster rate. Due to the sealing properties of the valve, the other bladders will not be affected and will not leak. At this time, the preload spring corresponding to the punctured bladder will spring up the support shaft, replacing the bladder to support the tire that has lost support due to the leaking bladder and act as a cushion.

[0027] 4. When the preload spring corresponding to the punctured airbag springs up the support shaft, causing the limiting through-hole on the support shaft to enter the second barrel. The first and second limiting sliders, acted upon by the limiting springs, move outward, becoming trapped between the second shaft and the first barrel, preventing the support shaft from retracting, thus improving safety.

[0028] 5. When inflating the tire, energize the electromagnets of all valves through the power port so that all airbags are in a connected state, making it convenient to inflate all airbags at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 is a cross-sectional view of the present invention;

[0030] Figure 2 This is an enlarged schematic diagram of the structure when the preload spring in the present invention bounces up the support shaft so that the limiting through hole on the support shaft enters the second barrel.

[0031] In the figure, 1-wheel hub, 2-rim, 3-pipe between airbags, 4-valve, 5-airbag, 6-tire, 7-support cover, 8-buffer body, 9-support shaft, 10-first limiting slider, 11-limiting spring, 12-second limiting slider, 13-preload spring, 14-support cylinder. Implementation Method

[0032] The technical solution of the present invention is further described in detail below with reference to the accompanying drawings:

[0033] The present invention can be implemented in many different forms and should not be considered to be limited to the embodiments described herein. On the contrary, these embodiments are provided to make this disclosure thorough and complete and will fully convey the scope of the invention to those skilled in the art. In the accompanying drawings, components are enlarged for clarity.

[0034] It should be understood that although the terms first, second, third, etc. may be used herein to describe various elements, components, and / or parts, these elements, components, and / or parts are not limited by these terms. These terms are merely used to distinguish elements, components, and / or parts from each other. Therefore, the first element, component, and / or part discussed below can become the second element, component, or part without departing from the teachings of the present invention.

[0035] like Figure 1 As shown, the present invention discloses a multi-airbag safety tire, comprising a tire, a hub, M spokes, a rim, a power connection port, an air valve, and N buffer support modules;

[0036] The M spokes are coplanar and circumferentially evenly arranged between the hub and the rim, with one end of each spoke being fixedly connected to the outer wall of the hub and the other end being fixedly connected to the inner wall of the rim;

[0037] The wheel rim is evenly provided with N mounting holes circumferentially corresponding to the buffer support modules;

[0038] The N buffer support modules are evenly arranged between the tire and the wheel hub in the circumferential direction, and the buffer support modules include an airbag, a support cover, a buffer body, a support shaft, a support cylinder and a pre-compression spring;

[0039] The airbag is arranged between the tire and the rim and is in an inflated state;

[0040] The outer side of the support cover abuts against the airbag, and the inner side fits outside the wheel hub, and its area is larger than the mounting hole corresponding to the buffer support module on the wheel hub;

[0041] The buffer body is arranged in the mounting hole, with its outer side fixedly connected to the center of the inner wall of the support cover and its inner side fixedly connected to the outer end of the support shaft, for buffering the impact force transmitted from the support cover to the support shaft;

[0042] like Figure 2 As shown, the support shaft includes a first shaft portion and a second shaft portion, the first shaft portion and the second shaft portion are both cylindrical, and the cross-sectional area of ​​the first shaft portion is larger than that of the second shaft portion; a section of the first shaft portion is fixedly connected to the buffer body, and the other end is coaxially fixedly connected to one end of the second shaft portion; a limiting through-hole perpendicular to the axis of the second shaft is provided on the side wall, and a first limiting slider, a second limiting slider and a limiting spring are provided in the limiting through-hole; the first limiting slider and the second limiting slider are both able to slide freely along the limiting through-hole; the limiting spring is arranged between the first limiting slider and the second limiting slider, one end of the limiting spring is fixedly connected to the first limiting slider, and the other end is fixedly connected to the second limiting slider, and is in a compressed state;

[0043] The support cylinder includes a first cylinder portion and a second cylinder portion, both of which are hollow cylinders with openings at both ends. The inner diameter of the first cylinder portion is larger than that of the second cylinder portion, and one end of the first cylinder portion is coaxially fixedly connected to one end of the second cylinder portion, and the other end of the second cylinder portion is fixedly connected to the wheel hub, wherein the first cylinder portion is used to cooperate with the first shaft portion so that the first shaft portion can slide freely in the first cylinder portion; the second cylinder portion is used to cooperate with the second shaft portion so that the second shaft portion can slide freely in the second cylinder portion;

[0044] The first shaft portion is located in the first cylindrical portion, and one end of the first shaft portion away from the buffer body abuts against one end of the second cylindrical portion away from the wheel hub; the preload spring is arranged in the second cylindrical portion, one end abuts against the wheel hub, and the other end abuts against one end of the second shaft portion away from the first shaft portion, and is in a compressed state;

[0045] The power connection port is arranged on the inner wall of the hub;

[0046] The airbags of the N buffer support modules are all connected by pipes, and electromagnetic valves are provided in the pipes; the electromagnetic valves in the pipes between the airbags of the N buffer support modules are electrically connected to the power connection port through wires, and are closed when not powered and open when powered;

[0047] The valve is arranged on the inner wall of the wheel hub, and the airbags of one of the buffer support modules are connected, and is used to inflate the airbags of N buffer support modules when the solenoid valves in the pipelines between the airbags of N buffer support modules are all opened.

[0048] The buffer body adopts a mechanical elastic structure or a honeycomb structure of rubber material.

[0049] The N buffer support modules and the M spokes are preferably not coplanar, and N is preferably 12.

[0050] The working process of the present invention is as follows:

[0051] When the vehicle is driving normally, the airbags of the multiple buffer support modules in the outer tire play a buffering role. When the air in the airbags of the multiple buffer support modules is gradually lost and the tire pressure is reduced, the pressure of the airbags on the support cover is reduced. The elastic force of the preload spring is greater than the pressure of the airbag on the support cover. The second spring will lift the support shaft, squeeze the airbag, increase the air pressure in the airbag, slow down the speed of tire pressure reduction, and reduce the frequency of tire inflation. When the outer tire is punctured by a hard object and the inner bag is punctured, the gas in the punctured airbag will be lost at a faster rate. Due to the sealing characteristics of the valve, other airbags will not be affected and will not leak. At this time, the pre-stressed spring corresponding to the punctured airbag will pop up the support shaft, replacing the airbag to support the outer tire that has lost support due to air bag leakage and play a buffering role; when the pre-stressed spring corresponding to the punctured airbag will pop up the support shaft so that the limiting through hole on the support shaft enters the second cylinder, the first limiting slider and the second limiting slider move outward under the action of the limiting spring, and are stuck between the second shaft body and the first cylinder body, so that the support shaft can no longer retract, thereby improving safety; when the tire is inflated, the electromagnets of all valves are energized through the power port, so that all airbags are in a connected state, which is convenient for inflating all airbags at the same time.

[0052] It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those skilled in the art in the art to which this invention belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with their meanings in the context of the prior art and, unless defined as such, will not be interpreted in an idealized or overly formal sense.

[0053] The specific implementation methods described above further illustrate the objectives, technical solutions and beneficial effects of the present invention in detail. It should be understood that the above description is only a specific implementation method of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A multi-airbag safety tire, characterized in that: Includes a tire, a hub, M spokes, a rim, a power connection port, a valve, and N buffer support modules; The M spokes are coplanar and circumferentially evenly arranged between the hub and the rim, with one end of each spoke being fixedly connected to the outer wall of the hub and the other end being fixedly connected to the inner wall of the rim; The wheel rim is evenly provided with N mounting holes circumferentially corresponding to the buffer support modules; The N buffer support modules are evenly arranged between the tire and the wheel hub in the circumferential direction, and the buffer support modules include an airbag, a support cover, a buffer body, a support shaft, a support cylinder and a pre-compression spring; The airbag is arranged between the tire and the rim and is in an inflated state; The outer side of the support cover abuts against the airbag, and the inner side fits outside the wheel hub, and its area is larger than the mounting hole corresponding to the buffer support module on the wheel hub; The buffer body is arranged in the mounting hole, with its outer side fixedly connected to the center of the inner wall of the support cover and its inner side fixedly connected to the outer end of the support shaft, for buffering the impact force transmitted from the support cover to the support shaft; The support shaft includes a first shaft portion and a second shaft portion, the first shaft portion and the second shaft portion are both cylindrical, and the cross-sectional area of ​​the first shaft portion is larger than that of the second shaft portion; one end of the first shaft portion is fixedly connected to the buffer body, and the other end is coaxially fixedly connected to one end of the second shaft portion; a limiting through hole is provided on the side wall of the second shaft and is perpendicular to its axis, and a first limiting slider, a second limiting slider and a limiting spring are provided in the limiting through hole; the first limiting slider and the second limiting slider are both able to slide freely along the limiting through hole; the limiting spring is arranged between the first limiting slider and the second limiting slider, one end of the limiting spring is fixedly connected to the first limiting slider, and the other end of the limiting spring is fixedly connected to the second limiting slider, and is in a compressed state; The support cylinder includes a first cylinder portion and a second cylinder portion, both of which are hollow cylinders with openings at both ends. The inner diameter of the first cylinder portion is larger than that of the second cylinder portion, and one end of the first cylinder portion is coaxially fixedly connected to one end of the second cylinder portion, and the other end of the second cylinder portion is fixedly connected to the wheel hub, wherein the first cylinder portion is used to cooperate with the first shaft portion so that the first shaft portion can slide freely in the first cylinder portion; the second cylinder portion is used to cooperate with the second shaft portion so that the second shaft portion can slide freely in the second cylinder portion; The first shaft portion is located in the first cylindrical portion, and one end of the first shaft portion away from the buffer body abuts against one end of the second cylindrical portion away from the wheel hub; the preload spring is arranged in the second cylindrical portion, one end abuts against the wheel hub, and the other end abuts against one end of the second shaft portion away from the first shaft portion, and is in a compressed state; The power connection port is arranged on the inner wall of the hub; The airbags of the N buffer support modules are all connected by pipes, and electromagnetic valves are provided in the pipes; the electromagnetic valves in the pipes between the airbags of the N buffer support modules are electrically connected to the power connection port through wires, and are closed when not powered and open when powered; The valve is arranged on the inner wall of the wheel hub, and is connected to the airbag of one of the buffer support modules, and is used to inflate the airbags of N buffer support modules when the solenoid valves in the pipelines between the airbags of N buffer support modules are all opened.

2. The multi-airbag safety tire according to claim 1, characterized in that: The buffer body adopts a mechanical elastic structure or a honeycomb structure of rubber material.

3. The multi-airbag safety tire according to claim 1, characterized in that: The N buffer support modules and the M spokes are not coplanar.

4. The multi-airbag safety tire according to claim 3, characterized in that: N is 12.

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