Gradient viscous sphere coupled multi-cavity automobile inner tube

Abstract

The invention belongs to the technical field of automobile inner tube application, and provides a gradient viscous sphere coupled multi-cavity automobile inner tube which comprises an inner tube body and a valve core fixedly mounted on the wall of the inner tube body, partition blades are arranged in an inner channel of the inner tube body at equal intervals, a cavity is reserved between every two adjacent partition blades, and the valve core is arranged in the inner channel of the inner tube body. Wherein one cavity is communicated with the valve core, the periphery of the partition blade is fixedly connected with an adhesion ring wall, the adhesion ring wall is adhered to the inner tube wall through a silicon rubber adhesive, the center of the partition blade is fixedly connected with a mounting ring, and an electric control valve is fixedly inserted into the mounting ring; the inner tube is divided into a plurality of independent cavities by the partition blades, when one cavity leaks air, the other cavities can still keep air pressure, instant collapse caused by overall pressure loss of a traditional inner tube is avoided, the large balls and the middle balls in the air leakage cavities can still provide rigid support, the tire wall is prevented from being directly squashed, the small balls disperse pressure through rolling, and the service life of the tire is prolonged. And direct friction between the tread and the ground is further reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of automobile inner tube applications, and in particular relates to a multi-chamber automobile inner tube coupled with a gradient viscous sphere. Background Art

[0002] A car inner tube refers to a rubber product installed inside a car tire to retain air and provide cushioning. With the development and popularization of tubeless tire technology, most modern cars now use tubeless tires instead of traditional tires with inner tubes. Tubeless tires directly seal the air inside the tire and prevent gas leakage through the tight fit between the tire and the wheel hub, thus eliminating the need for an additional inner tube.

[0003] However, in some specific cases, such as some heavy vehicles, agricultural machinery or old cars, tires with inner tubes may still be used. The inner tube is usually made of natural rubber or synthetic rubber, has good elasticity and airtightness, and when the inner tube is punctured, it can be quickly repaired or replaced to restore the function of the tire.

[0004] Traditional inner tubes use a single air chamber structure, which will lead to overall decompression when punctured or damaged, and the tire body will collapse instantly, posing a driving safety hazard. Especially under driving conditions, it is very easy to cause the vehicle to lose control. The safety performance needs to be improved. In addition, the existing air leakage detection technology mainly relies on manual inspection or a simple tire pressure monitoring system, which cannot directly and accurately locate the air leakage point. As a result, the entire inner tube needs to be fully checked during maintenance, which is time-consuming and affects work efficiency. Therefore, the industry has long lacked a comprehensive solution that can ensure safe driving and realize intelligent monitoring. This technology effectively solves these technical problems through the synergy of the innovative multi-chamber structure and the intelligent monitoring system. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention provides a multi-chamber automobile inner tube coupled with gradient viscous spheres to solve the problems in the prior art.

[0006] A multi-chamber automobile inner tube coupled with a gradient viscous sphere comprises an inner tube body and a valve core fixedly mounted on the wall of the inner tube body. Partition leaves are equidistantly arranged in an internal channel of the inner tube body, a chamber is left between two adjacent partition leaves, one of the chambers is communicated with the valve core, an adhesive ring wall is fixedly connected to the periphery of the partition leaves, and the adhesive ring wall is adhered to the inner tube wall by a silicone rubber adhesive, a mounting ring is fixedly connected to the center of the partition leaves, an electric control valve is fixedly inserted in the mounting ring, and a pressure-resistant part for external protection of the electric control valve is arranged between the electric control valve and the mounting ring.

[0007] The chamber is filled with several large spheres, medium spheres and small spheres. The large spheres are provided with a supporting skeleton, the medium spheres are filled with memory foam, and the small spheres are solid silicone balls.

[0008] The surfaces of the large sphere, the middle sphere and the small sphere are coated with a sticky layer, and the stickiness of the three sticky layers decreases in sequence.

[0009] Preferably, the supporting skeleton includes an octahedral frame arranged inside the large sphere, and each face of the octahedral frame is integrally fixedly connected to a triangular frame. Both the octahedral frame and the triangular frame are made of carbon fiber, and the top corners of the octahedral frame and the triangular frame are adhered and fixed to the inner wall of the large sphere.

[0010] Preferably, the shells of the large sphere and the middle sphere are made of polyurethane elastic material, and both surfaces are provided with penetrating micropores.

[0011] Preferably, the adhesive layer of the large sphere is a composite glue of polyurethane and carbon nanotubes, the adhesive layer of the medium sphere is a composite gel of silicone oil and silicon dioxide nanoparticles, and the adhesive layer of the small sphere is modified polydimethylsiloxane.

[0012] Preferably, the partition is in a drip pattern shape, the partition is made of carbon fiber reinforced TPU material, and a shape memory alloy wire is fixedly embedded in the bend position of the drip pattern.

[0013] Preferably, the pressure-resistant component includes a metal rubber fixedly connected to the periphery of the electric control valve, and the periphery of the metal rubber is fixedly connected to silicon carbide ceramics.

[0014] Preferably, a neck ring is fixed to the periphery of the silicon carbide ceramic by adhesive glue, and a sealing ring is integrally fixedly connected to one end of the neck ring close to the mounting ring, and the sealing ring is adhered and fixed to the mounting ring by adhesive glue.

[0015] Preferably, the side surfaces of the sealing ring and the mounting ring that contact each other are both configured as a wave-shaped structure.

[0016] Preferably, a plurality of ribs are fixedly connected to the outer periphery of the silicon carbide ceramic, the sealing ring and the neck ring at equal intervals on a common circumference.

[0017] Preferably, a Bluetooth transmission module and an air pressure sensor are provided in the electric control valve, and a power supply system is also installed on the electric control valve, which supplies power to the Bluetooth transmission module, the electric control valve and the air pressure sensor, and the power supply system is a lithium battery.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. The inner tube of the present invention is divided into multiple independent chambers by partitions. When a single chamber leaks, the remaining chambers can still maintain air pressure, avoiding instantaneous collapse caused by overall pressure loss of the traditional inner tube. The large and medium spheres in the leaking chamber can still provide rigid support, preventing the tire wall from being directly crushed. The small spheres disperse pressure by rolling, further reducing direct friction between the tread and the ground, preventing the wheel hub from crushing the tire body after a tire blowout, causing direct damage to the wheel hub and inner and outer tires, significantly improving the fault tolerance and passive safety of the inner tube, and solving the industry problem of sudden tire blowout.

[0020] 2. The present invention integrates a Bluetooth transmission module and a high-precision air pressure sensor through an electronically controlled valve to construct an intelligent multi-point monitoring system, which can accurately locate the leakage chamber in real time, greatly improving the efficiency of leakage detection, thereby improving the maintenance efficiency of the inner tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 Schematic diagram of the cross-sectional structure of the inner tube of the present invention;

[0022] Figure 2 This is a schematic diagram of the inner tube structure of the present invention;

[0023] Figure 3 It is a schematic diagram of the three-dimensional cross-sectional structure of the large sphere of the present invention;

[0024] Figure 4 Schematic diagram of the three-dimensional structure of the octahedral framework of the present invention;

[0025] Figure 5 Schematic diagram of the cross-sectional structure of the sphere in the present invention;

[0026] Figure 6 This is a schematic diagram of the cross-sectional connection structure of the mounting ring, the electric control valve and the pressure-resistant member of the present invention;

[0027] Figure 7 It is a structural schematic diagram of the partition leaf of the present invention.

[0028] In the picture:

[0029] 1. Inner tube body; 2. Chamber; 3. Partition; 31. Mounting ring; 32. Adhesion ring wall; 4. Large sphere; 41. Support frame; 411. Octahedron frame; 412. Triangle frame; 5. Small sphere; 6. Medium sphere; 61. Memory foam; 7. Electric control valve; 71. Pressure-resistant part; 711. Silicon carbide ceramic; 712. Metal rubber; 713. Rib plate; 714. Sealing ring; 715. Neck ring; 8. Valve core. DETAILED DESCRIPTION

[0030] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention but are not intended to limit the scope of the present invention.

[0031] Example 1:

[0032] The present invention provides a multi-chamber automobile inner tube with gradient viscous sphere coupling, comprising an inner tube body 1 and a valve core 8 fixedly mounted on the wall of the inner tube body 1. Partition leaves 3 are equidistantly arranged in the internal channel of the inner tube body 1, and a chamber 2 is left between two adjacent partition leaves 3, wherein one chamber 2 is communicated with the valve core 8. An adhesive ring wall 32 is fixedly connected to the periphery of the partition leaves 3, and the adhesive ring wall 32 is adhered to the inner tube wall by a silicone rubber adhesive. A mounting ring 31 is fixedly connected to the center of the partition leaves 3, and an electric control valve 7 is fixedly inserted in the mounting ring 31. A pressure-resistant part 71 for external protection of the electric control valve 7 is provided between the electric control valve 7 and the mounting ring 31.

[0033] See Figure 1 、 Figure 3 and Figure 5 The chamber 2 is filled with a number of large spheres 4, medium spheres 6 and small spheres 5. The large sphere 4 is provided with a support frame 41, the medium sphere 6 is filled with memory foam 61, and the small sphere 5 is a solid silicone ball.

[0034] See Figure 1 The surfaces of the large sphere 4, the middle sphere 6 and the small sphere 5 are coated with a sticky layer, and the stickiness of the three sticky layers decreases in sequence.

[0035] As can be seen from the above, the valve core 8 is fixed on the inner tube wall and serves as an inflation port for injecting or releasing gas into the tube. The internal channel of the inner tube is divided into multiple independent chambers 2 by the partition leaf 3, one of which is directly connected to the valve core 8 to ensure that the gas can enter the inner tube. The partition leaf 3 is bonded to the inner tube wall through the adhesive ring wall 32 to form a stable partition structure to prevent the gas from flowing freely between the chambers 2. The adhesive ring wall 32 is tightly bonded to the inner tube wall through the silicone rubber adhesive to prevent gas leakage and the partition leaf 3 from falling off.

[0036] See Figure 3 and Figure 4 The support skeleton 41 includes an octahedral frame 411 arranged inside the large sphere 4, and each surface of the octahedral frame 411 is integrally fixedly connected with a triangular frame 412. The octahedral frame 411 and the triangular frame 412 are both made of carbon fiber, and the top corners of the octahedral frame 411 and the triangular frame 412 are adhered and fixed to the inner wall of the large sphere 4.

[0037] As can be seen from the above, the octahedral frame 411 serves as the core support structure, the triangular frame 412 enhances local stiffness, the carbon fiber material ensures lightness and high strength, and the top corners of the skeleton are bonded to the inner wall of the large sphere 4 to prevent the skeleton from shifting and ensure overall stability, thereby giving the large sphere 4 a rigid support function.

[0038] See Figure 1 The shells of the large sphere 4 and the middle sphere 6 are made of polyurethane elastic material, and both surfaces are provided with penetrating micropores.

[0039] See Figure 1 The sticky layer of the large sphere 4 is a composite glue of polyurethane and carbon nanotubes, the sticky layer of the middle sphere 6 is a composite gel of silicone oil and silica nanoparticles, and the sticky layer of the small sphere 5 is modified polydimethylsiloxane.

[0040] As can be seen from the above, the large sphere 4 provides rigid support for the inner tube through the internal support skeleton 41, and uses a high-viscosity coating (polyurethane + carbon nanotubes) to make it displace slowly when rolling to avoid sudden impact; the medium sphere 6 absorbs energy and slowly rebounds through the memory sponge 61, and uses a medium-viscosity coating (silicone oil + silica nanoparticles) to enable it to adhere to the tire wall and slide appropriately when under pressure, playing a buffering transition role; the small sphere 5 provides basic elasticity through a solid silicone ball, can deform freely, and fill gaps, and uses a low-viscosity coating (modified polydimethylsiloxane) to make it easy to roll and disperse local pressure. The micropores can enhance air permeability, which is conducive to inflation.

[0041] See Figure 7 The partition leaf 3 is in a drip pattern shape and is made of carbon fiber reinforced TPU material. A shape memory alloy wire is fixedly embedded in the bend position of the drip pattern (the shape memory alloy wire is not shown in the figure).

[0042] As can be seen from the above, the partition leaf 3 is made of carbon fiber reinforced TPU material, which has high toughness and tear resistance, and is suitable for the use environment of the inner tube. The drip pattern design is combined with shape memory alloy wire (such as nickel-titanium alloy), which can undergo elastic deformation when impacted and return to its original shape after the pressure disappears, thereby improving fatigue resistance.

[0043] See Figure 6 The pressure-resistant component 71 includes a metal rubber 712 fixedly connected to the periphery of the electric control valve 7 , and a silicon carbide ceramic 711 is fixedly connected to the periphery of the metal rubber 712 .

[0044] See Figure 6 The silicon carbide ceramic 711 is fixed with a neck ring 715 on its periphery by adhesive. One end of the neck ring 715 close to the mounting ring 31 is integrally fixedly connected with a sealing ring 714. The sealing ring 714 is fixed to the mounting ring 31 by adhesive.

[0045] See Figure 6 and Figure 7 The side surfaces of the sealing ring 714 and the mounting ring 31 that contact each other are both configured as a wave-shaped structure.

[0046] See Figure 6A plurality of ribs 713 are fixedly connected to the periphery of the silicon carbide ceramic 711, the sealing ring 714 and the neck ring 715 at equal intervals on the common circumference.

[0047] As can be seen from the above, the pressure-resistant part 71 is composed of metal rubber 712 (a composite of metal wire and rubber) and silicon carbide ceramics 711. The metal rubber 712 can absorb vibration, and the silicon carbide ceramics 711 can provide high-strength protection to prevent the electric control valve 7 from being squeezed and damaged. The neck ring 715 and the sealing ring 714 are tightly fitted through the wavy structure. By increasing the contact area, the connection sealing is enhanced to prevent gas leakage. The rib plate 713 is provided to further improve the structural strength.

[0048] Example 2: This example is basically the same as the previous example, except that a Bluetooth transmission module and an air pressure sensor are provided in the electric control valve 7, and a power supply system is also installed on the electric control valve 7. The Bluetooth transmission module, the electric control valve 7 and the air pressure sensor are powered by the power supply system, and the power supply system is a lithium battery (the Bluetooth transmission module, the air pressure sensor and the power supply system are not shown in the figure).

[0049] As can be seen from the above, the electric control valve 7 is embedded in the mounting ring 31, and the on / off state of each chamber 2 is adjusted through the Bluetooth transmission module to realize air pressure management. During inflation, the electric control valve 7 is controlled to open so that each chamber 2 can communicate with each other for inflation. After the inflation is completed, the electric control valve 7 is controlled to close so that each chamber 2 is independent, reducing the impact of air leakage. The pressure of the corresponding chamber 2 can be monitored in real time through the air pressure sensor. When there is a leak, the Bluetooth transmission module can directly send a leak alarm of the corresponding chamber 2 to the user, making leak detection more convenient.

[0050] In the drawings of the embodiments disclosed in the present invention, only the structures related to the embodiments disclosed in the present invention are involved. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present invention can be combined with each other.

[0051] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A multi-chamber automobile inner tube with gradient viscous sphere coupling, comprising an inner tube body (1), and a valve core (8) fixedly mounted on the wall of the inner tube body (1), characterized in that: The inner tube body (1) is provided with equidistant partitions (3) in the inner passage, a chamber (2) is left between two adjacent partitions (3), one of the chambers (2) is communicated with the valve core (8), an adhesive ring wall (32) is fixedly connected to the outer periphery of the partition (3), the adhesive ring wall (32) is adhered to the inner tube wall by a silicone rubber adhesive, a mounting ring (31) is fixedly connected to the center of the partition (3), an electric control valve (7) is fixedly inserted in the mounting ring (31), and a pressure-resistant part (71) for external protection of the electric control valve (7) is provided between the electric control valve (7) and the mounting ring (31); The chamber (2) is filled with a plurality of large spheres (4), medium spheres (6) and small spheres (5); a support frame (41) is provided in the large sphere (4); a memory foam (61) is filled in the medium sphere (6); and the small sphere (5) is a solid silica gel ball; The surfaces of the large sphere (4), the middle sphere (6) and the small sphere (5) are coated with a sticky layer, and the stickiness of the three sticky layers decreases in sequence.

2. The multi-chamber automobile inner tube with gradient viscous sphere coupling according to claim 1, characterized in that: The support skeleton (41) comprises an octahedral frame (411) arranged inside the large sphere (4), and each face of the octahedral frame (411) is integrally fixedly connected with a triangular frame (412), and both the octahedral frame (411) and the triangular frame (412) are made of carbon fiber material, and the top corners of the octahedral frame (411) and the triangular frame (412) are adhered and fixed to the inner wall of the large sphere (4).

3. The multi-chamber automobile inner tube with gradient viscous sphere coupling according to claim 1, characterized in that: The outer shells of the large sphere (4) and the middle sphere (6) are made of polyurethane elastic material, and both surfaces are provided with penetrating micropores.

4. The multi-chamber automobile inner tube with gradient viscous sphere coupling according to claim 1, characterized in that: The adhesive layer of the large sphere (4) is a composite glue of polyurethane and carbon nanotubes, the adhesive layer of the middle sphere (6) is a composite gel of silicone oil and silicon dioxide nanoparticles, and the adhesive layer of the small sphere (5) is modified polydimethylsiloxane.

5. The multi-chamber automobile inner tube with gradient viscous sphere coupling according to claim 1, characterized in that: The partition leaf (3) is in the shape of a drip pattern, and is made of carbon fiber reinforced TPU material, and a shape memory alloy wire is fixedly embedded in the bend position of the drip pattern.

6. The multi-chamber automobile inner tube with gradient viscous sphere coupling according to claim 1, characterized in that: The pressure-resistant component (71) comprises a metal rubber (712) fixedly connected to the periphery of the electric control valve (7), and the periphery of the metal rubber (712) is fixedly connected to silicon carbide ceramics (711).

7. The multi-chamber automobile inner tube with gradient viscous sphere coupling according to claim 1, characterized in that: A neck ring (715) is fixed to the periphery of the silicon carbide ceramic (711) by adhesive bonding, and a sealing ring (714) is integrally fixedly connected to one end of the neck ring (715) close to the mounting ring (31), and the sealing ring (714) is fixed to the mounting ring (31) by adhesive bonding.

8. The multi-chamber automobile inner tube with gradient viscous sphere coupling according to claim 7, characterized in that: The side surfaces of the sealing ring (714) and the mounting ring (31) that contact each other are both configured as a wave-shaped structure.

9. The multi-chamber automobile inner tube with gradient viscous sphere coupling according to claim 7, characterized in that: A plurality of ribs (713) are fixedly connected at equal intervals on the periphery of the silicon carbide ceramic (711), the sealing ring (714) and the neck ring (715) on a common circumference.

10. The multi-chamber automobile inner tube with gradient viscous sphere coupling according to claim 1, characterized in that: The electric control valve (7) is provided with a Bluetooth transmission module and an air pressure sensor. The electric control valve (7) is also provided with a power supply system, which supplies power to the Bluetooth transmission module, the electric control valve (7) and the air pressure sensor. The power supply system is a lithium battery.

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