Child balance car pneumatic-free tire with high wear resistance

Abstract

This utility model relates to the field of balance bike tire technology, specifically a children's balance bike tire with high wear resistance that does not require inflation. It includes an outer tire body and an inner ring. The outer tire body has a wear-resistant layer on its outer side, and the inner ring has an annular support plate on its outer side. An arc groove is formed on the outer side of the annular support plate, and limiting grooves are formed at both ends of the annular support plate. The outer tire body abuts against the arc groove and a limiting layer is provided between it and the limiting groove. An injection groove is formed on the inner side of the inner ring. This structure, through the wear-resistant layer on the outer side of the tire body, directly enhances the wear resistance of the part in contact with the ground, reduces the wear rate of the tire when driving on rough roads, extends the tire's service life, and reduces the cost and inconvenience caused by frequent tire replacements. The overall structure adopts a tireless design, completely solving the problems of air leakage and the need for regular inflation of traditional pneumatic tires, making it suitable for diverse outdoor use scenarios of children's balance bikes.

Description

Technical Field

[0001] This utility model relates to the field of balance bike tire technology, specifically a children's balance bike tire with high wear resistance that does not require inflation. Background Technology

[0002] As we all know, with the increasing popularity of balance bikes in children's outdoor recreation and sports, tires, as a core component of balance bikes, directly affect the safety, comfort, and lifespan of children's riding experience. Currently, balance bike tires on the market are mainly divided into two categories: pneumatic tires and airless tires. While pneumatic tires offer good cushioning performance, they have significant drawbacks: Firstly, balance bikes are often used on complex outdoor surfaces such as concrete, gravel roads, and grass, making pneumatic tires prone to punctures by sharp objects, leading to leaks and requiring frequent inflation or even inner tube replacements, increasing usage costs and maintenance hassles. Secondly, the airtightness of pneumatic tires is difficult to guarantee long-term, and chronic leaks may occur over time, affecting the riding experience and safety.

[0003] While pneumatic tires have solved the problems of inflation and leakage, existing pneumatic tires still have many shortcomings in structural design and performance. The connection between the outer tire and inner tube ring in some pneumatic tires is not secure enough. During children's riding, especially when turning, braking suddenly, or on bumpy roads, the outer tire is prone to radial displacement or axial detachment, seriously threatening children's riding safety. At the same time, the wear resistance of existing pneumatic tires needs improvement. After prolonged friction with the ground, the outer tire is prone to premature wear and shallowing of the tread, leading to decreased grip and shortened tire life. Furthermore, some pneumatic tires have poor cushioning performance, resulting in significant vibration during riding and affecting children's riding comfort. Therefore, it is necessary to propose solutions to these technical problems. Utility Model Content

[0004] In view of the shortcomings of the existing technology, this utility model provides a tire for children's balance bikes that does not require inflation and has high wear resistance.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a tire for children's balance bikes with high wear resistance, comprising an outer tire body and an inner tube ring. The outer tire body has a wear-resistant layer on its outer side, and the inner tube ring has an annular support plate on its outer side. An arc groove is formed on the outer side of the annular support plate, and limiting grooves are formed at both ends of the annular support plate. A limiting layer is provided between the outer tire body and the arc groove and the limiting groove. An injection groove is formed on the inner side of the inner tube ring, and a slot is formed between the threaded tube and the injection groove. Positioning holes are formed at the top and bottom of the outer tire body. A threaded tube is provided inside the inner tube ring, and both ends of the threaded tube extend to the outer side of the inner tube ring. A threaded post is provided between the positioning hole and one end of the threaded tube, and a threaded cap is provided at one end of the threaded post. The injection groove and the threaded tube are filled with glue.

[0006] Furthermore, the present invention is improved in that the outer tire body is made of rubber composite material, which contains nano-sized silica particles and short carbon fiber filaments.

[0007] Furthermore, the present invention is improved in that the outer surface of the wear-resistant layer is provided with a groove pattern.

[0008] Furthermore, an improvement of this utility model is that the wear-resistant layer is made of high-styrene styrene-butadiene rubber.

[0009] Furthermore, the present invention is improved in that the liquid injection tank is provided in two symmetrical arrangements.

[0010] Furthermore, an improvement of this invention is that the limiting layer is an aramid fiber layer.

[0011] Furthermore, the present invention is improved in that the inner tube ring is made of high-strength aluminum alloy.

[0012] Compared with the prior art, this utility model provides a pneumatic tire for children's balance bikes with high wear resistance, which has the following beneficial effects:

[0013] This high-wear-resistant, airless tire for children's balance bikes features an inner tube ring with an inner fluid injection groove connected to a threaded tube via a slot. The glue filling the groove and threaded tube cures after assembly and flows through the slot to penetrate all connecting parts, strengthening the connection between the inner tube ring, the outer tire body, and the threaded post. This reduces the risk of component loosening and improves the long-term reliability of the tire. A wear-resistant layer is applied to the outer side of the tire body, directly enhancing the wear resistance of the part in contact with the ground, reducing the wear rate on rough roads, extending tire life, and reducing the cost and inconvenience of frequent tire replacements. The overall structure adopts an airless design, completely solving the problems of traditional pneumatic tires that leak air and require regular inflation, avoiding riding interruptions or safety hazards caused by air leaks, and adapting to the diverse outdoor use scenarios of children's balance bikes. Attached Figure Description

[0014] Figure 1 This is a first-view structural diagram of the present invention;

[0015] Figure 2 This is a schematic diagram of the second-view structure of the present invention;

[0016] Figure 3 This is a schematic diagram of the third-view structure of this utility model;

[0017] Figure 4 This utility model Figure 1 Enlarged front half-section view of the inner and outer tire body.

[0018] In the diagram: 1. Outer tire body; 2. Inner ring; 3. Wear-resistant layer; 4. Annular support plate; 5. Limiting layer; 6. Injection groove; 7. Threaded tube; 8. Threaded cap; 9. Groove pattern; 10. Threaded post. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figures 1-4This utility model discloses a high-wear-resistant, airless tire for children's balance bikes, comprising an outer tire body 1 and an inner tube ring 2. The outer tire body 1 has a wear-resistant layer 3 on its outer side. The inner tube ring 2 has an annular support plate 4 on its outer side, with an arc groove on its outer side. Limiting grooves are formed at both ends of the annular support plate 4. A limiting layer 5 is provided between the outer tire body 1 and the arc groove and the limiting groove. An injection groove 6 is formed on the inner side of the inner tube ring 2. A slot is formed between the threaded tube 7 and the injection groove 6. Positioning holes are formed at both the top and bottom of the outer tire body 1. The inner tube 7 is provided inside the inner tube ring 2. Both ends of the threaded tube 7 extend to the outside of the inner tube ring 2. A threaded post 10 is provided between the positioning hole and one end of the threaded tube 7. A threaded cap 8 is provided at one end of the threaded post 10. The injection groove 6 and the threaded tube 7 are filled with glue. In this embodiment, the outer tire body 1 is fitted onto the annular support plate 4, and the positioning hole of the outer tire body 1 is inserted into the threaded tube 7 to fasten the outer tire body 1. The annular support plate 4 on the outside of the inner tube ring 2 has an arc groove to provide a fitting support surface for the outer tire body 1. The limiting grooves at both ends cooperate with the limiting layer 5 to restrict the radial and axial displacement of the outer tire body 1 and prevent the outer tire body 1 from separating from the inner tube ring 2. The inner side of the inner tube ring 2 The injection groove 6 and the threaded tube 7 are connected by a slot. After the inner wall of the inner tube ring 2 is assembled onto the wheel hub of the balance scooter, the injection groove 6 contacts the outer side of the wheel hub. Then, a threaded post 10 is threaded onto one end of the threaded tube 7, and glue is injected through the other end of the threaded tube 7. The threaded post 10 is then threaded onto the other end of the threaded tube 7, and the threaded cap 8 of the threaded post 10 abuts against the outer tire body 1, thereby firmly fixing the outer tire body 1. The glue filled in the injection groove 6 and the threaded tube 7 can flow through the slot and cure after the tire is assembled, strengthening the connection strength between the inner tube ring 2, the outer tire body 1, and the threaded post 10. A wear-resistant layer 3 is provided on the outer side of the outer tire body 1 to directly enhance the contact with the ground. The structure significantly improves the wear resistance of the contact parts, enhancing the overall structural stability of the tire. Through the combination of the arc groove, limiting groove, and limiting layer 5, it effectively prevents the outer tire body 1 from shifting or detaching during driving. The glue-filled design strengthens the connection between components, reducing the risk of loosening. The wear-resistant layer 3 directly improves the tire's wear resistance and extends its service life. The sealing structure of the threaded post 10 and threaded cap 8 ensures the effectiveness of the glue and guarantees the durability of the connection. The overall structural design balances practicality and reliability. This structure provides cushioning without inflation while possessing high wear resistance, enabling long-term application on children's balance bikes. The glue used to fill the injection groove 6 and threaded tube 7 can be epoxy resin glue, such as E-44 epoxy resin glue combined with T31 ​​curing agent. The reason for choosing this type of glue is as follows: epoxy resin glue has excellent bonding strength, firmly bonding different materials such as the rubber outer tire body 1, the aluminum alloy inner tube ring 2, and the metal threaded post 10, ensuring the connection stability between components and meeting the tire's requirements for connection strength.

[0021] To further enhance the wear resistance and structural strength of the tire body 1, in this design, the tire body 1 is made of a rubber composite material containing nano-sized silica particles and chopped carbon fiber filaments. The nano-sized silica particles can be uniformly dispersed in the rubber matrix, improving the rubber's hardness, wear resistance, and tear resistance; the chopped carbon fiber filaments possess high strength and high toughness, enhancing the overall strength and impact resistance of the rubber composite material.

[0022] To improve the grip of this structure, in this design, the outer surface of the wear-resistant layer 3 is provided with grooves 9. The grooves 9 on the outer surface of the wear-resistant layer 3 can increase the contact area between the tire and the ground, and at the same time, they can play a role in drainage on wet and slippery roads, reducing the impact of water film on friction.

[0023] In order to extend the overall service life of the tire, in this solution, the wear-resistant layer 3 is made of high-styrene styrene-butadiene rubber. The wear-resistant layer 3 is made of high-styrene styrene-butadiene rubber, which has high hardness, excellent wear resistance and aging resistance, and good compatibility with the rubber composite material of the outer tire body 1. It is easy to process and mold, and its aging resistance can ensure that the wear-resistant layer 3 is not prone to cracking or hardening under long-term sun and rain conditions, maintains stable performance, and extends the overall service life of the tire.

[0024] To further improve the strength of the assembly structure, in this design, two injection grooves 6 are provided and symmetrically arranged. The symmetrical distribution of the two injection grooves 6 allows the adhesive to flow and fill evenly in the injection grooves 6 and the threaded tube 7, ensuring that the connection strength on both sides of the inner tube ring 2 is consistent. This avoids the problem of weak connection on one side of the inner tube ring 2 due to uneven adhesive distribution, and ensures the symmetry and stability of the connection between the inner tube ring 2 and the outer tire body 1 and the threaded post 10, reducing structural damage to the tire caused by uneven stress during driving.

[0025] To further ensure a stable connection between the outer tire body 1 and the inner ring 2, in this design, the limiting layer 5 is an aramid fiber layer. The limiting layer 5 is made of aramid fiber, which has high strength, high modulus and good fatigue resistance, and can withstand the interaction force between the outer tire body 1 and the inner ring 2.

[0026] To ensure the structural strength of the inner tube ring 2, in this design, the inner tube ring 2 is made of high-strength aluminum alloy. Aluminum alloy is lightweight, high-strength, and corrosion-resistant, and can withstand various pressures and impacts during tire operation.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pneumatic tire for children's balance bikes with high wear resistance, comprising an outer tire body (1) and an inner ring (2), characterized in that, The outer tire body (1) is provided with a wear-resistant layer (3) on the outside, the inner tube ring (2) is provided with an annular support plate (4) on the outside, the annular support plate (4) is provided with an arc groove on the outside, the two ends of the annular support plate (4) are provided with a limiting groove, the outer tire body (1) abuts against the arc groove and is provided with a limiting layer (5) between it and the limiting groove, the inner tube ring (2) is provided with an injection groove (6) on the inside, the inner tube ring (2) is provided with a threaded tube (7) inside, the threaded tube (7) is provided with a slot between it and the injection groove (6), the top and bottom ends of the outer tire body (1) are provided with positioning holes, the two ends of the threaded tube (7) extend to the outside of the inner tube ring (2), the positioning hole is provided with a threaded post (10) between it and one end of the threaded tube (7), one end of the threaded post (10) is provided with a threaded cap (8), the injection groove (6) and the threaded tube (7) are filled with glue.

2. The airless tire for children's balance bikes with high wear resistance as described in claim 1, characterized in that, The outer tire body (1) is made of rubber composite material.

3. The airless tire for children's balance bikes with high wear resistance as described in claim 1, characterized in that, The outer surface of the wear-resistant layer (3) is provided with groove patterns (9).

4. The airless tire for children's balance bikes with high wear resistance as described in claim 3, characterized in that, The wear-resistant layer (3) is made of high-styrene styrene-butadiene rubber.

5. The airless tire for children's balance bikes with high wear resistance as described in claim 1, characterized in that, The injection tank (6) has two tanks arranged symmetrically.

6. The airless tire for children's balance bikes with high wear resistance as described in claim 1, characterized in that, The limiting layer (5) is an aramid fiber layer.

7. The airless tire for children's balance bikes with high wear resistance as described in claim 1, characterized in that, The inner tube ring (2) is made of high-strength aluminum alloy.

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