Detachable hub suitable for roller brake

Abstract

The utility model provides a detachable hub suitable for a roller brake, which comprises a main body and an adapter ring, the main body and the adapter ring are hollow cylinders, the adapter ring is detachably connected to one end of the main body, and the adapter ring is detachably and coaxially connected with the main body. A spline is arranged at the end, away from the body, of the adapter ring and arranged along the axis of the adapter ring. One end of the adapter ring contacted with the main body is a flange part. One end of the body close to the adapter ring is provided with a clamping groove. During installation, the flange part is clamped in the clamping groove, the adapter ring is detachably connected to the clamping groove, and the roller brake is connected with the spline. And when the spline is worn, the adapter ring is independently detached and replaced, so that the maintenance convenience is improved, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of bicycles, and in particular relates to a detachable hub suitable for roller brakes. Background Art

[0002] As people pay more attention to health and the environment, and pursue a sustainable lifestyle, cycling is becoming more and more popular. Bicycles are not only a means of transportation, but also competitive and social. Bicycle enthusiasts pursue faster speeds and higher climbing efficiency. Lighter bicycles require less energy to ride, overcome less gravity when climbing, save more physical strength, and help riders gain a competitive advantage, which is favored by riders. As people pursue lightweight bicycles and technological development, hubs of various materials have emerged, such as iron, aluminum, titanium, and carbon fiber. As an efficient and stable roller brake, iron is usually used as the manufacturing material. At the connection between the hub and the roller brake, since the non-iron hub material is softer than iron, the hub connection is easy to wear, and the entire hub needs to be replaced and repaired. Replacing the hub requires professional skills, poor maintenance convenience, and high maintenance costs.

[0003] Therefore, the above problems need to be solved urgently. Utility Model Content

[0004] Purpose of the utility model: In order to overcome the above shortcomings, the utility model provides a detachable hub suitable for roller brakes, and the adapter ring can be replaced separately, which improves the maintenance convenience and reduces the maintenance cost.

[0005] Technical solution: In order to achieve the above-mentioned purpose, the utility model provides a detachable hub suitable for roller brakes, including a main body and an adapter ring. The main body and the adapter ring are hollow cylinders. The adapter ring is detachably connected to one end of the main body, and the adapter ring is detachably coaxially connected to the main body. A spline is provided at the end of the adapter ring away from the main body, and the spline is arranged along the axis of the adapter ring. The end of the adapter ring in contact with the main body is a flange part. A slot is provided at one end of the main body close to the adapter ring. During installation, the flange part is clamped in the slot, and the flange part is not higher than the slot. The adapter ring is detachably connected to the slot, and the roller brake is connected to the spline. When the spline is worn, the adapter ring is removed and replaced separately, which improves the convenience of maintenance and reduces the maintenance cost. The flange part is clamped in the slot, and no additional seal is required between the flange part and the slot, or only a suitable gasket is needed to achieve good sealing and avoid grease leakage, and the flange part can provide a sufficiently high mechanical connection strength to avoid connection failure caused by wear.

[0006] Furthermore, in the above-mentioned detachable hub for roller brakes, the flange part is provided with a plurality of countersunk through holes in an array around the axis of the adapter ring, the slot is provided with a plurality of threaded holes, and the threaded holes and the countersunk through holes are provided correspondingly. When connecting, the locking screw passes through the countersunk through hole and is screwed into the threaded hole to lock the flange part in the slot, so that the main body and the adapter ring form a mechanical connection with high strength.

[0007] Furthermore, in the above-mentioned detachable hub for roller brakes, a weight-reducing groove is provided at one end of the adapter ring close to the main body, and the weight-reducing groove is arranged in a ring shape. The weight-reducing groove reduces the weight of the adapter ring, meeting the lightweight requirements of the bicycle.

[0008] Furthermore, in the above-mentioned detachable hub for roller brakes, a weight-reducing hole is provided on the bottom surface of the slot, the diameter of the weight-reducing hole is smaller than the diameter of the slot, and the weight-reducing hole and the slot form a stepped hole. The bottom surface of the slot is retained to connect the flange part, and the weight-reducing hole is provided to reduce the weight, so as to pursue lightweight bicycles.

[0009] Furthermore, in the above-mentioned detachable hub suitable for roller brakes, a first bead groove is provided at one end of the main body away from the adapter ring.

[0010] Furthermore, in the above-mentioned detachable hub suitable for roller brakes, a second bead groove is provided at one end of the adapter ring away from the main body.

[0011] Furthermore, in the above-mentioned detachable hub for roller brakes, spoke rings are respectively provided at both ends of the main body, and the spokes are integrally arranged around the main body. The spoke ring is provided with a plurality of spoke holes.

[0012] Furthermore, in the above-mentioned detachable hub applicable to roller brakes, in order to reduce the weight of the adapter ring, the adapter ring is made of aluminum.

[0013] It can be seen from the above technical scheme that the utility model has the following beneficial effects: the utility model is suitable for detachable hubs of roller brakes. When the splines are worn, the adapter ring can be removed and replaced separately, which improves the convenience of maintenance and reduces the maintenance cost. The flange part is clamped in the slot, and only a suitable gasket is needed between the flange part and the slot to achieve good sealing and avoid grease leakage. The flange part can provide a sufficiently high mechanical connection strength to avoid connection failure caused by wear. The weight-reducing grooves and weight-reducing holes can reduce the weight of components and meet the lightweight requirements of bicycles. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a cross-sectional view of a detachable hub suitable for roller brakes.

[0015] In the figure: 1, main body, 11, slot, 111, threaded hole, 12, weight-reducing hole, 13, first bead groove, 14, spoke ring, 2, adapter ring, 21, spline, 22, flange, 221, countersunk through hole, 23, weight-reducing groove, 24, second bead groove. DETAILED DESCRIPTION

[0016] Example 1

[0017] like Figure 1 The detachable hub for roller brakes shown in the figure includes a main body 1 and an adapter ring 2. The main body 1 and the adapter ring 2 are hollow cylinders, and the adapter ring 2 is made of aluminum. The adapter ring 2 is detachably connected to one end of the main body 1, and the adapter ring 2 is detachably coaxially connected to the main body 1. A spline 21 is provided at the end of the adapter ring 2 away from the main body 1, and the spline 21 is arranged along the axis of the adapter ring 2. The end of the adapter ring 2 in contact with the main body 1 is a flange portion 22. A groove 11 is provided at one end of the main body 1 close to the adapter ring 2. The flange portion 22 is provided with a plurality of countersunk through holes 221 in an array around the axis of the adapter ring 2, and the groove 11 is provided with a plurality of threaded holes 111, and the threaded holes 111 and the countersunk through holes 221 are arranged correspondingly. A weight-reducing groove 23 is provided at one end of the adapter ring 2 close to the main body 1, and the weight-reducing groove 23 is arranged in a ring shape. A weight-reducing hole 12 is provided on the bottom surface of the slot 11, and the diameter of the weight-reducing hole 12 is smaller than the diameter of the slot 11, and the weight-reducing hole 12 and the slot 11 form a stepped hole. A first bead groove 13 is provided on the end of the main body 1 away from the adapter ring 2. Further, in the above-mentioned detachable hub for roller brakes, a second bead groove 24 is provided on the end of the adapter ring 2 away from the main body 1. Further, in the above-mentioned detachable hub for roller brakes, spoke rings 14 are provided at both ends of the main body 1, and the spoke rings 14 are integrally arranged around the main body 1. The spoke ring 14 is provided with a plurality of spoke holes. During installation, the flange portion 22 is clamped in the slot 11, and the flange portion 22 is not higher than the slot 11. The locking screw passes through the countersunk through hole 221, is screwed into the threaded hole 111, and the flange portion 22 is locked in the slot 11. The roller brake is connected to the spline 21.

[0018] The above embodiments are exemplary, and their purpose is to illustrate the technical concept and features of the utility model so that people familiar with this field can understand the content of the utility model and implement it accordingly, and they cannot be used to limit the protection scope of the utility model. Any equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A detachable hub suitable for roller brakes, characterized in that: The invention comprises a main body (1) and an adapter ring (2), wherein the main body (1) and the adapter ring (2) are hollow cylinders, the adapter ring (2) is detachably connected to one end of the main body (1), and the adapter ring (2) and the main body (1) are detachably coaxially connected; a spline (21) is provided at one end of the adapter ring (2) away from the main body (1), and the spline (21) is arranged along the axis of the adapter ring (2); a flange portion (22) is provided at one end of the adapter ring (2) that contacts the main body (1); and a clamping groove (11) is provided at one end of the main body (1) close to the adapter ring (2), and when installed, the flange portion (22) is clamped in the clamping groove (11), and the flange portion (22) is not higher than the clamping groove (11).

2. The detachable hub for roller brakes according to claim 1, characterized in that: The flange portion (22) is provided with a plurality of countersunk through holes (221) in an array around the axis of the adapter ring (2); the clamping groove (11) is provided with a plurality of threaded holes (111); and the threaded holes (111) and the countersunk through holes (221) are arranged correspondingly.

3. The detachable hub for roller brakes according to claim 1, characterized in that: The adapter ring (2) is provided with a weight-reducing groove (23) at one end close to the main body (1), and the weight-reducing groove (23) is arranged in a ring shape.

4. The detachable hub for roller brakes according to claim 1, characterized in that: A weight-reducing hole (12) is provided on the bottom surface of the clamping slot (11); the diameter of the weight-reducing hole (12) is smaller than the diameter of the clamping slot (11); the weight-reducing hole (12) and the clamping slot (11) form a stepped hole.

5. The detachable hub for roller brakes according to claim 1, characterized in that: A first bead groove (13) is provided at one end of the main body (1) away from the adapter ring (2).

6. The detachable hub for roller brakes according to claim 1, characterized in that: A second bead groove (24) is provided at one end of the adapter ring (2) away from the main body (1).

7. The detachable hub for roller brakes according to claim 1, characterized in that: Spoke rings (14) are respectively provided at both ends of the main body (1), and the spoke rings (14) are integrally arranged around the main body (1); the spoke rings (14) are provided with a plurality of spoke holes.

8. The detachable hub for roller brakes according to claim 1, characterized in that: The adapter ring (2) is made of aluminum.

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