Roller

Abstract

The utility model belongs to the technical field of roller structures, and particularly relates to a roller which comprises a rim, a roller body and a bearing, the rim is fixedly sleeved outside the roller body, the outer side of the bearing is arranged in the roller body in a penetrating manner, a positioning ring is arranged on the inner side of the bearing in a penetrating manner, the positioning ring and the inner wall of the bearing form friction braking so as to be fastened in the bearing, and a rotating shaft is fixedly connected in the positioning ring. According to the roller provided by the utility model, the outer-layer rim made of the TPU material is used, so that the roller is firm and wear-resistant, the use effect is improved, and the service life is prolonged; and through the positioning ring in the bearing, the whole roller can be quickly detached from the rotating shaft, and when the roller breaks down and needs to be maintained or replaced, the quick repair operation is simple and convenient, the repair time is greatly saved, and the use experience of players is improved.

Description

Technical Field

[0001] This utility model belongs to the field of roller structure technology, and in particular relates to a roller. Background Technology

[0002] Roller skating, as a popular sport, attracts many participants, and a good pair of roller skates is essential. Roller skates mainly consist of the skate itself and the wheels on its bottom. Multiple freely rotating wheels are mounted on the sole frame. During use, the constant friction between the wheels and the ground not only causes wear and tear on the wheel surface but also negatively impacts the axle rotation after performing various freestyle maneuvers. When malfunctions occur, the wheels on the sole need to be disassembled for repair, sometimes requiring the entire wheel or even the wheel frame to be removed. This disassembly process is cumbersome, difficult, and leads to a poor user experience. Utility Model Content

[0003] The purpose of this utility model is to provide a roller that addresses the shortcomings of existing technology by having both a wear-resistant and durable outer layer and an installation structure that facilitates disassembly and maintenance.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A roller includes a rim, a body, and a bearing. The rim is fixedly sleeved on the body, the bearing is inserted through the outer side of the body, and a positioning ring is inserted through the inner side of the bearing. The positioning ring forms a friction brake with the inner wall of the bearing to secure it in the bearing. A rotating shaft is fixedly connected to the positioning ring.

[0006] Preferably, the wheel rim is made of TPU material, and the TPU material of the wheel rim is further mixed with one or more of glass fiber, carbon fiber and PVC.

[0007] Preferably, the positioning ring is made of aluminum.

[0008] Preferably, the wheel body is provided with reinforcing ribs.

[0009] Preferably, an outer stop block is sleeved on the rotating shaft, and the outer stop block is located on the outward side of the bearing.

[0010] Preferably, the positioning ring has an internal thread on its inner side, the rotating shaft has an external thread on its surface, and the positioning ring is threadedly connected to the rotating shaft.

[0011] Preferably, a limiting nut is provided on the outer side of the rotating shaft.

[0012] Preferably, the positioning ring is interference-fitted with the rotating shaft.

[0013] Preferably, the positioning ring is a C-shaped open ring.

[0014] Preferably, the positioning ring is provided with a positioning groove, and the rotating shaft is provided with a positioning key that matches the positioning groove.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: The roller provided by this utility model, by using the outer wheel rim made of TPU material, can be made strong and wear-resistant, improving the performance and extending the service life; and through the positioning ring in the bearing, the roller can be quickly removed from the shaft. When the roller encounters a fault and needs to be repaired or replaced, the repair operation is quick and simple, greatly saving repair time and improving the user experience. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is another structural schematic diagram of the present invention.

[0018] Figure label:

[0019] 1. Wheel rims;

[0020] 2. Wheel body; 21. Reinforcing ribs;

[0021] 3. Bearings;

[0022] 4. Positioning ring; 41. Positioning groove;

[0023] 5. Rotating shaft, 51. Outer stop block, 52. Limit nut, 53. Positioning key. Detailed Implementation

[0024] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0025] like Figure 1 and Figure 2As shown, the wheel includes a rim 1, a wheel body 2, and a bearing 3. The rim 1 is fixedly fitted onto the outside of the wheel body 2. The bearing 3 is inserted through the outer side of the wheel body 2, and a positioning ring 4 is inserted through the inner side of the bearing 3. The positioning ring 4 forms a friction brake with the inner wall of the bearing 3 to secure it within the bearing 3. A rotating shaft 5 is fixedly connected to the positioning ring 4. The rim 1 can be fixed to the outside of the wheel body 2 by integral molding or adhesive fitting. Its outer surface is smooth and wear-resistant, maintaining a good shape and structure even after repeated use. The inner and outer layers of the bearing 3 are fixed to the wheel body 2 and the positioning ring 4, respectively. The bearing 3 is a high-speed rotating shaft bearing 3. The inner side of the bearing 3 is fixed to the rotating shaft 5 by the positioning ring 4, while the wheel body 2 is fixedly connected to the outer ring of the bearing 3. The wheel body 2 and the rotating shaft 5 are rotatably connected, enabling rapid rotation of the roller.

[0026] Furthermore, the wheel rim 1 is made of TPU material, which has the characteristics of wear resistance and high hardness. The TPU material of the wheel rim 1 is also mixed with one or more of glass fiber, carbon fiber and PVC, thereby modifying it to meet the needs of more different application scenarios.

[0027] Furthermore, the positioning ring 4 is made of aluminum, which can fix the rotating shaft 5 inside the bearing 3.

[0028] Furthermore, the wheel body 2 is provided with reinforcing ribs 21 to increase the strength of the wheel body 2 and extend its service life.

[0029] Furthermore, an outer stop block 51 is fitted onto the rotating shaft 5, and the outer stop block 51 is located on the outward side of the bearing 3. This is to prevent external dust and debris from entering the bearing 3 and affecting its use.

[0030] In some embodiments, such as Figure 1 As shown, the positioning ring 4 has an internal thread on its inner side, and the rotating shaft 5 has an external thread on its surface. The positioning ring 4 is threadedly connected to the rotating shaft 5. The rotating shaft 5 is usually fixed to the bottom bracket of the roller skate, and the positioning ring 4 and the bearing 3 outside it are fixed to the rotating shaft 5 by the threaded connection.

[0031] Furthermore, a limiting nut 52 is provided on the outer side of the rotating shaft 5. The inner ring of the fixed bearing 3 is fixed to the rotating shaft 5 by the limiting nut 52.

[0032] In some embodiments, such as Figure 2 As shown, the positioning ring 4 and the rotating shaft 5 are interference-fitted. The rotating shaft 5 used here can be a rotating shaft with a smooth outer wall, and the rotating shaft 5 is fixed inside the positioning ring 4 by interference fit.

[0033] Furthermore, the positioning ring 4 is a C-shaped open ring. After the positioning ring 4 with the C-shaped open ring is fixed inside the bearing 3, the rotating shaft 5 is then pressed and inserted into the positioning ring 4 to achieve a fixed connection.

[0034] Furthermore, the positioning ring 4 is provided with a positioning groove 41, and the rotating shaft 5 is provided with a positioning key 53 that matches the positioning groove 41. This ensures that the rotating shaft 5 and the positioning ring 4 are firmly connected and will not slip.

[0035] Based on the disclosure and teachings of the above specification, those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments described above, and any obvious improvements, substitutions, or modifications made by those skilled in the art based on this utility model are within the protection scope of this utility model. Furthermore, although some specific terms are used in this specification, these terms are only for convenience of explanation and do not constitute any limitation on this utility model.

Claims

1. A roller wheel characterized by: Including wheel rim (1), wheel body (2) and bearing (3), the wheel rim (1) is fixedly sleeved on the wheel body (2), the bearing (3) is arranged in the wheel body (2) outside, the bearing (3) is arranged in the wheel body (2) inside with the locating ring (4), the locating ring (4) is formed with the friction brake with the inner wall of the bearing (3) to be fastened in the bearing (3), the locating ring (4) is fixedly connected with the rotating shaft (5).

2. The roller of claim 1, wherein: The wheel rim (1) is TPU material, and the TPU material of the wheel rim (1) is mixed with one or more of glass fiber, carbon fiber and PVC.

3. The roller of claim 1, wherein: The locating ring (4) is made of aluminum.

4. The roller of claim 1, wherein: The wheel body (2) is provided with a reinforcing rib (21).

5. The roller of claim 1, wherein: The rotating shaft (5) is provided with an outer stop block (51), and the outer stop block (51) is arranged on the outer side of the bearing (3).

6. The roller of claim 1, wherein: The inner side of the locating ring (4) is provided with an internal thread, and the surface of the rotating shaft (5) is provided with an external thread, and the locating ring (4) is connected with the rotating shaft (5) through the external thread.

7. The roller of claim 6, wherein: The outer side of the rotating shaft (5) is provided with a limiting nut (52).

8. The roller of claim 1, wherein: The locating ring (4) is connected with the rotating shaft (5) through interference fit.

9. The roller of claim 8, wherein: The locating ring (4) is a C-shaped open ring.

10. The roller of claim 8, wherein: The locating ring (4) is provided with a positioning groove (41), and the rotating shaft (5) is provided with a positioning key (53) matched with the positioning groove (41).

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