Low-noise rubber tire

Abstract

The utility model relates to the technical field of tires, and discloses a low-noise rubber tire which comprises a hub, a first acoustic isolation pad is mounted on the surface of the hub, an inner tube is mounted on the surface of the first acoustic isolation pad, and a second acoustic isolation pad is mounted on the outer side of the inner tube. According to the utility model, the first acoustic isolation pad and the second acoustic isolation pad are arranged, and the first acoustic isolation pad is made of the rubber composite material, so that when a vehicle runs, a closed cavity is formed in the tire, and the first acoustic isolation pad absorbs vibration and sound wave energy generated by resonance of the cavity and prevents the vibration and sound wave energy from being transmitted to a vehicle structure and a surrounding environment; the second acoustic isolation pad is made of polyurethane materials and has excellent sound absorption and vibration reduction performance, when a vehicle runs, the second acoustic isolation pad can effectively absorb vibration and sound wave energy, additional loads of the vehicle cannot be increased due to the light weight characteristic of the second acoustic isolation pad, and the noise generated by the tire is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of tires, in particular to a low-noise-reducing rubber tire. Background Art

[0002] Noise-reducing tires, also known as low-noise tires, are designed specifically to reduce driving noise. These tires are very popular in certain specific usage scenarios, especially in cities and residential areas, where vehicle noise may have a greater impact on the living environment. As the only part of the car that comes in direct contact with the road, its design directly affects the vehicle's driving performance, especially the noise generated while driving. Tire noise mainly comes from two aspects: one is the friction noise generated when the tire pattern contacts the road surface, and the other is the cavity resonance caused by the air flow inside the tire.

[0003] Therefore, a low noise reduction rubber tire is needed to improve the above problems. Utility Model Content

[0004] In order to solve the above-mentioned technical problems, the utility model provides a low noise reduction rubber tire.

[0005] The utility model is implemented by the following technical scheme: a low noise reduction rubber tire, including a wheel hub, a first acoustic isolation pad is installed on the surface of the wheel hub, an inner tube is installed on the surface of the first acoustic isolation pad, a second acoustic isolation pad is installed on the outer side of the inner tube, an outer tube is installed on the outer side of the second acoustic isolation pad, S-shaped wire grooves are evenly spaced in the middle of the outer tube surface, and triangular wire grooves are evenly spaced on both sides of the middle of the outer tube surface.

[0006] As a further improvement of the above scheme, the outer surface of the second acoustic isolation pad and the inner surface of the first acoustic isolation pad are respectively adhered to the inner surface of the outer tire and the outer surface of the wheel hub by Velcro, so as to facilitate the installation of the second acoustic isolation pad and the first acoustic isolation pad.

[0007] As a further improvement of the above solution, an annular connecting groove is provided between the triangular groove and the S-shaped groove, which helps to reduce the noise generated by the air flow and improve the drainage performance of the tire.

[0008] As a further improvement of the above solution, mounting holes are evenly spaced on the surface of the wheel hub to facilitate the installation of the tire.

[0009] As a further improvement of the above solution, the second acoustic isolation pad is made of polyurethane, which improves the sound absorption and shock absorption performance of the device.

[0010] As a further improvement of the above solution, the first acoustic isolation pad is made of rubber material, and elastic rubber particles are evenly distributed on the surface of the first acoustic isolation pad to improve the shock absorption effect of the tire.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] 1. The utility model provides a first acoustic isolation pad and a second acoustic isolation pad. The first acoustic isolation pad is made of a rubber composite material and is installed on the inner surface of an inner tube. When the vehicle is running, a closed cavity is formed inside the tire, thereby enhancing the effect of noise. The first acoustic isolation pad abuts against the inner surface of the inner tube to absorb vibration and sound wave energy and prevent it from propagating to the vehicle structure and the surrounding environment, thereby reducing the noise generated by the tire. The second acoustic isolation pad is made of polyurethane material and exists in a foamed form with excellent sound absorption and shock absorbing properties. When the vehicle is running, the second acoustic isolation pad can effectively absorb vibration and sound wave energy and reduce its propagation. Moreover, due to its lightweight characteristics, it will not increase the additional load on the vehicle, thereby reducing the noise generated by the tire.

[0013] 2. The utility model forms many irregular small tread blocks and regular small triangular blocks on the surface of the tire by arranging S-shaped grooves and triangular grooves, which can reduce the impact when the tread blocks contact the road surface, thereby reducing noise, and a large number of S-shaped grooves and triangular grooves can effectively disperse and absorb noise. At the same time, the irregular tread blocks and triangular blocks are evenly distributed on the surface of the tire, which can disrupt the frequency distribution of noise and make the noise less obvious to the ear. The S-shaped grooves and triangular grooves are connected through the annular connecting grooves, which helps to reduce the noise generated by air flow, and can also improve the drainage performance of the tire to ensure driving safety on wet and slippery roads. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 It is a schematic diagram of the structure of the mounting hole, the wheel hub and the second acoustic isolation pad of the utility model;

[0016] Figure 3 It is a schematic diagram of the structure of the S-shaped wire trough, triangular wire trough and annular connecting trough of the utility model;

[0017] Figure 4 It is a schematic structural diagram of the first acoustic isolation pad of the utility model.

[0018] Description of main symbols:

[0019] 1. Wheel hub; 2. First acoustic isolation pad; 3. Second acoustic isolation pad; 4. Inner tube; 5. Outer tube; 6. S-shaped wire groove; 7. Triangular wire groove; 8. Annular connecting groove; 9. Mounting hole. DETAILED DESCRIPTION

[0020] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0021] Example:

[0022] Please combine Figure 1-4 A low noise reduction rubber tire of the present embodiment includes a wheel hub 1. The surface of the wheel hub 1 is provided with mounting holes 9 at equal intervals to facilitate the installation of the tire. A first acoustic isolation pad 2 is installed on the surface of the wheel hub 1. The material of the first acoustic isolation pad 2 is rubber material, and elastic rubber particles are evenly distributed on the surface of the first acoustic isolation pad 2 to improve the shock absorption effect of the tire. An inner tube 4 is installed on the surface of the first acoustic isolation pad 2. A second acoustic isolation pad 3 is installed on the outer side of the inner tube 4. The material of the second acoustic isolation pad 3 is polyurethane material to improve the sound absorption and shock absorption performance of the device. An outer tire 5 is installed on the outer side of the second acoustic isolation pad 3, and the outer surface of the second acoustic isolation pad 3 and the inner surface of the first acoustic isolation pad 2 are respectively adhered to the inner surface of the outer tire 5 and the outer surface of the wheel hub 1 through Velcro, which facilitates the installation of the second acoustic isolation pad 3 and the first acoustic isolation pad 2. S-shaped grooves 6 are evenly spaced in the middle of the surface of the outer tire 5, and triangular grooves 7 are evenly spaced on both sides of the middle of the surface of the outer tire 5. An annular connecting groove 8 is arranged between the triangular groove 7 and the S-shaped groove 6, which helps to reduce the noise generated by air flow and improve the drainage performance of the tire.

[0023] The implementation principle of a low-noise-reducing rubber tire in the embodiment of the present application is as follows: when the vehicle is running, a closed cavity is formed inside the tire, thereby enhancing the effect of the noise; the first acoustic isolation pad 2 abuts against the inner surface of the inner tube 4, and absorbs the generated vibration and sound wave energy, preventing it from propagating to the vehicle structure and the surrounding environment, thereby reducing the noise generated by the tire; the second acoustic isolation pad 3 is made of polyurethane material and exists in a foam form with excellent sound absorption and shock absorption properties. When the vehicle is running, the second acoustic isolation pad 3 can effectively absorb vibration and sound wave energy and reduce its propagation, and due to its lightweight characteristics, it will not increase the additional load on the vehicle, thereby reducing the noise generated by the tire.

[0024] During the driving process of the vehicle, the friction between the tire and the ground will generate noise. By arranging the S-shaped grooves 6 and the triangular grooves 7, many irregular small tread blocks and regular small triangular blocks are formed on the surface of the outer tire 5, which can reduce the impact when the tire contacts the road surface, thereby reducing the noise. A large number of S-shaped grooves 6 and triangular grooves 7 can effectively disperse and absorb the noise. At the same time, the irregular tread blocks and triangular blocks are evenly distributed on the surface of the outer tire 5, which can disrupt the frequency distribution of the noise and make the noise less obvious to the auditory sense. The S-shaped grooves 6 and the triangular grooves 7 are connected through the annular connecting grooves 8, which helps to reduce the noise generated by air flow and improve the drainage performance of the tire to ensure driving safety on wet and slippery roads.

[0025] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A low noise reduction rubber tire, characterized in that: The wheel hub (1) comprises a first acoustic isolation pad (2) installed on the surface of the wheel hub (1), an inner tube (4) installed on the surface of the first acoustic isolation pad (2), a second acoustic isolation pad (3) installed on the outer side of the inner tube (4), an outer tube (5) installed on the outer side of the second acoustic isolation pad (3), S-shaped wire grooves (6) are evenly spaced in the middle of the surface of the outer tube (5), and triangular wire grooves (7) are evenly spaced on both sides of the middle of the surface of the outer tube (5).

2. A low noise reduction rubber tire as claimed in claim 1, characterized in that: The outer surface of the second acoustic isolation pad (3) and the inner surface of the first acoustic isolation pad (2) are respectively adhered to the inner surface of the outer tire (5) and the outer surface of the wheel hub (1) by Velcro.

3. A low noise reduction rubber tire as claimed in claim 1, characterized in that: An annular connecting groove (8) is provided between the triangular wire groove (7) and the S-shaped wire groove (6).

4. A low noise reduction rubber tire as claimed in claim 1, characterized in that: The surface of the wheel hub (1) is provided with mounting holes (9) at equal intervals.

5. A low noise reduction rubber tire as claimed in claim 1, characterized in that: The second acoustic isolation pad (3) is made of polyurethane.

6. A low noise reduction rubber tire as claimed in claim 1, characterized in that: The material of the first acoustic isolation pad (2) is rubber material, and elastic rubber particles are evenly distributed on the surface of the first acoustic isolation pad (2).

Images