An improved bicycle flower drum

[0024] Example one

[0025] Such as Figure 1 to Figure 7 As shown, an improved bicycle hub includes a main shaft 2, a side cover 4, a right bearing bearing 6, a left bearing bearing 5, a hub shell 1, a tower body shell 3, a right tower body bearing 8, and a left side bearing The tower body bearing 7, the tower body housing 3 is arranged on the right part of the main shaft 2, the right end of the tower body housing 3 and the right end of the main shaft 2 are provided with a right side tower body bearing 8, and the hub housing 1 is arranged on the left of the main shaft 2. In part, the hub shell 1 includes a body 1b and an extension section 1a. The hub shell 1 extends into the tower base shell 3 through the extension section 1a. A left bearing bearing 5 is provided between the left end of the hub shell 1 and the left end of the main shaft 2. , A right bearing 6 is provided between the right end of the extension 1a and the right part of the main shaft 2, and a left side bearing 7 is

[0027] Example two

[0028] Such as Figure 1 to Figure 7 As shown, an improved bicycle hub includes a main shaft 2, a side cover 4, a right bearing bearing 6, a left bearing bearing 5, a hub shell 1, a tower body shell 3, a right tower body bearing 8, and a left side bearing The tower body bearing 7, the tower body housing 3 is arranged on the right part of the main shaft 2, the right end of the tower body housing 3 and the right end of the main shaft 2 are provided with a right side tower body bearing 8, and the hub housing 1 is arranged on the left of the main shaft 2. In part, the hub shell 1 includes a body 1b and an extension section 1a. The hub shell 1 extends into the tower base shell 3 through the extension section 1a. A left bearing bearing 5 is provided between the left end of the hub shell 1 and the left end of the main shaft 2. , A right bearing 6 is provided between the right end of the extension 1a and the right part of the main shaft 2, and a left side bearing 7 is

[0037] Example three

[0038] See figure 1 , The embodiment of the present invention includes main shaft 1-hub shell; 2- main shaft; 3- tower base shell; 4- side cover; 5- right bearing bearing; 6-left bearing bearing; 7-left tower base Bearing; 8-right tower base bearing; 9-one-way ratchet device; 10-washer.

[0039] The right bearing bearing 6 and the left bearing bearing 5 are respectively located at the bearing positions at the two ends of the hub shell 1, and are respectively installed on the main shaft 2, so that the hub shell 1 can rotate around the axis. The two ends of the main shaft 2 are respectively installed on the frame by assembling side covers 4. The outer surface of the tower body 3 is provided with a spline device 3a for installing a flywheel device. The tower body 3 is provided with a left side tower body bearing 7 and a right side tower between the extension 1a of the hub housing and the main shaft 2 respectively. The base bearing 8 makes the tower base housing 3