Foaming PU tire

Abstract

The utility model relates to the technical field of tire manufacturing, in particular to a foaming PU tire. According to the scheme provided by the invention, the protective raised lines are arranged on the two sides of the tire body, so that a raised protective layer is formed. When the tire encounters sharp objects during running, the tire firstly contacts the protective raised lines, so that the sharp objects are prevented from directly scratching the side surfaces of the tire body. The protective raised lines are made of materials with good toughness, impact force from sharp objects can be absorbed and dispersed, and the protective effect is further improved. Therefore, the problem that the side face of an existing solid tire is easily scratched by sharp objects is effectively solved, and the service life of the tire is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of tire manufacturing, in particular to a foamed PU tire. Background Art

[0002] Foamed PU solid tire is a tire without an inner air chamber. The entire tire is made of polyurethane material. The main advantages of foamed PU solid tires include: strong puncture resistance, no leakage due to penetration by sharp objects. Simple structure and low manufacturing cost. Large load-bearing capacity, suitable for use in harsh working environments.

[0003] Although solid tires have the above advantages, they also have some obvious defects: for example, solid tires usually only have a single tire body structure, without any protective devices on the side, completely exposed to the outside, and susceptible to mechanical damage. Especially when turning or moving laterally, the side of the tire will be subjected to a large lateral force, which intensifies the friction and collision between the side and sharp objects, thereby accelerating the damage to the side. Utility Model Content

[0004] In order to solve the above problems, the utility model discloses a foamed PU tire.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions: a foamed PU tire, comprising protective convex strips arranged on both sides of the tire body, the protective convex strips are annular and arranged concentrically with the center hole of the tire body;

[0006] A mounting portion is arranged at the center hole of the tire body. The mounting portion surrounds the center hole of the tire body, is in a ring shape, and is provided with a plurality of mounting holes.

[0007] Furthermore, the inner ring of the mounting portion is provided with at least one notch, and the notch is used to fit in with the raised portion on the circumference of the hub.

[0008] In addition, a warning strip is embedded in the tire body corresponding to the inner side of the tread pattern on the tire body, and the warning strip is annularly surrounding the circumference of the tire body.

[0009] In a possible implementation manner, the notch is in a V-shape, and the V-shaped notch is used to align with a corresponding V-shaped protrusion on the wheel hub.

[0010] In a specific solution, a protective cover is further embedded in the mounting hole, and outer edges at both ends of the protective cover are embedded in the mounting portion.

[0011] The solution of the embodiment of the present application forms a raised protective layer by providing protective ridges on both sides of the tire body. When the tire encounters a sharp object during operation, it will first contact the protective ridges to prevent the sharp object from directly scratching the side of the tire body. The protective ridges are made of a material with good toughness, which can absorb and disperse the impact force from the sharp object, further improving the protective effect. This effectively solves the problem that the side of the existing solid tire is easily scratched by sharp objects, which is conducive to extending the service life of the tire. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of a foam tire in an embodiment of the present application;

[0013] Figure 2 for Figure 1 A partial enlarged schematic diagram in the middle;

[0014] Figure 3 A side view of a foamed tire in an embodiment of the present application;

[0015] Figure 4 Schematic diagram of the position of the warning strip in the embodiment of the present application. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solutions and advantages of the utility model clearer, the utility model will be further described in detail below with reference to the accompanying drawings.

[0017] The terms used in the following embodiments are only for the purpose of describing specific embodiments and are not intended to be used as limitations on the present invention. As used in the specification and appended claims of the present invention, the singular expressions "a", "an", "above", "the" and "this" are intended to also include expressions such as "one or more", unless there is a clear contrary indication in the context.

[0018] References to "one embodiment" or "some embodiments" etc. described in this specification mean that one or more embodiments of the utility model include specific features, structures or characteristics described in conjunction with the embodiment. Therefore, the statements "in one embodiment", "in some embodiments", "in some other embodiments", "in some other embodiments", etc. that appear in different places in this specification do not necessarily refer to the same embodiment, but mean "one or more but not all embodiments", unless otherwise specifically emphasized in other ways. The terms "including", "comprising", "having" and their variations all mean "including but not limited to", unless otherwise specifically emphasized in other ways.

[0019] Example 1: Figure 1 and 3As shown, a foamed PU tire comprises protective ridges 101 arranged on both sides of a tire body 100, wherein the protective ridges 101 are annular and are arranged concentrically with the center hole of the tire body 100;

[0020] The protective ridge 101 can completely surround the side of the tire to form a raised protective layer. When the tire is running, if it encounters a sharp object, it will first contact the protective ridge 101, thereby playing a protective role and preventing the sharp object from directly scratching the side of the tire body 100. The protective ridge 101 is integrally formed with the tire body 100, and the material can be selected from rubber or plastic materials with good toughness, which can absorb and disperse the impact force from sharp objects to a certain extent, further improving the protection effect.

[0021] The center hole of the tire body 100 is provided with a mounting portion 102, the mounting portion 102 surrounds the center hole of the tire body 100, the mounting portion 102 is ring-shaped, and a plurality of mounting holes 121 are provided on the mounting portion 102. The mounting holes 121 can be used to connect to corresponding connection holes on the wheel hub, so as to facilitate the installation and removal of the tire. The mounting portion 102 is arranged around the center hole, which helps to achieve accurate concentric positioning of the tire and the wheel hub.

[0022] Example 2: Figure 1 As shown, the inner ring of the mounting portion 102 is provided with at least one notch 103, and the notch 103 is used to engage with the raised portion on the circumference of the wheel hub. The "convex-concave" matching design can make the tire more firmly fixed on the wheel hub and prevent the tire from relative displacement during use.

[0023] In a possible implementation, the notch 103 is V-shaped, and the V-shaped notch 103 is used to align with the corresponding V-shaped protrusion on the wheel hub. The notch 103 is V-shaped, so it can be accurately aligned with the corresponding V-shaped protrusion on the wheel hub, thereby further improving the positioning accuracy of the tire and the wheel hub. The V-shaped structure has a self-locking property, and once matched, it is not easy to move relative to each other, which can effectively prevent the tire from generating radial or circumferential displacement during use.

[0024] Example 3: Figure 4 As shown, a warning strip 200 is embedded in the tire body 100 corresponding to the inner side of the tread pattern on the tire body 100 , and the warning strip 200 is annularly surrounding the circumference of the tire body 100 .

[0025] The warning strip 200 is annularly arranged around the circumference of the tire body 100 and embedded in the inner side of the tread. Therefore, as the tire is constantly worn during use, when the tread is worn to a certain extent, the warning strip 200 will gradually appear from the inner side of the tread. The material of the warning strip 200 can be selected to be red or other eye-catching colors, forming a clear contrast with the black tread, which is convenient for users to find and identify in time. Through the setting of the warning strip 200, the user does not need to check the tread frequently, but only needs to simply observe whether there is a striking color to understand the wear of the tire conveniently and quickly.

[0026] Example 4: Figure 2 As shown, in a specific solution, a protective cover 122 is further embedded in the mounting hole 121 , and outer edges at both ends of the protective cover 122 are embedded in the mounting portion 102 .

[0027] In this embodiment, the protective cover 122 is a sleeve-shaped component, which is embedded in the mounting hole 121. The outer edges of both ends of the protective cover 122 are embedded in the mounting portion 102, so that the protective cover 122 is firmly fixed on the mounting portion 102. The material of the protective cover 122 can be selected from metals, high-strength engineering plastics and other wear-resistant and impact-resistant materials to ensure that it has good wear resistance and impact resistance.

[0028] The provision of the protective cover 122 can protect the inner wall of the mounting hole 121 from wear and damage, thereby extending the service life of the mounting hole 121.

[0029] In actual use, the mounting hole 121 often needs to cooperate with the mounting pin or fastener on the wheel hub, and repeated relative movement and friction will cause the inner wall of the mounting hole 121 to gradually wear out. Once the mounting hole 121 is damaged, the reliable connection between the tire and the wheel hub will be affected.

[0030] The protective cover 122 is arranged in the mounting hole 121, which can block the direct contact between the mounting pin and the inner wall of the mounting hole 121, and transfer the wear to the protective cover 122. At the same time, the protective cover 122 is made of wear-resistant material and can well withstand the wear and impact from the mounting pin.

[0031] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. A foamed PU tire, characterized in that: It comprises protective convex strips (101) arranged on both sides of a tire body (100), wherein the protective convex strips (101) are in an annular shape and are arranged concentrically with the central hole of the tire body (100); A mounting portion (102) is provided at the center hole of the tire body (100), the mounting portion (102) surrounds the center hole of the tire body (100), the mounting portion (102) is in a ring shape, and a plurality of mounting holes (121) are provided on the mounting portion (102).

2. A foamed PU tire according to claim 1, characterized in that: The inner ring of the mounting portion (102) is provided with at least one notch (103), and the notch (103) is used to engage with a protruding portion on the circumference of the wheel hub.

3. A foamed PU tire according to claim 1 or 2, characterized in that: A warning strip (200) is embedded in the tire body (100) and corresponds to the inner side of the tread pattern on the tire body (100). The warning strip (200) surrounds the tire body (100) in a circular shape in the circumferential direction.

4. A foamed PU tire as claimed in claim 2, characterized in that: The notch (103) is in a V shape, and the V-shaped notch (103) is used to align with a corresponding V-shaped protrusion on the wheel hub.

5. The foamed PU tire according to claim 1, characterized in that: A protective sleeve (122) is further embedded in the mounting hole (121), and outer edges at both ends of the protective sleeve (122) are embedded in the mounting portion (102).

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