CN203157592U

CN203157592U - Bicycle hub

Info

Publication number: CN203157592U
Application number: CN 201320117261
Authority: CN
Inventors: 张维岳
Original assignee: SUZHOU FALCON CYCLE-PARTS Co Ltd
Current assignee: SUZHOU FALCON CYCLE-PARTS Co Ltd
Priority date: 2013-03-15
Filing date: 2013-03-15
Publication date: 2013-08-28
Anticipated expiration: 2023-03-15

Abstract

The utility model discloses a bicycle hub which comprises prepressing pieces, a middle pipe, wheel blades and a shaft center, wherein the prepressing pieces, the middle pipe and the wheel blades are arranged on the shaft center in a sleeving way, and the wheel blades are arranged on two sides of the middle pipe; flange nuts are fixedly arranged at two ends of the shaft center, and each prepressing piece is positioned between each wheel blade and each flange nut; and a coupler is arranged between each prepressing piece and each flange nut, screw threads are formed inside and outside each coupler, and the inner screw threads are matched with the shaft center. According to the bicycle hub provided by the utility model, the couplers are mounted between the prepressing pieces and the flange nuts, the screw threads are formed inside and outside the couplers, and the inner screw threads are matched with the shaft center, so that the couplers can improve compressive strength of two ends of the shaft center, the shaft center is not easy to deform even though two ends of the shaft center are extruded or impacted by external force.

Description

A kind of bicycle drive shaft

Technical field

The utility model relates to a kind of bicycle, is specifically related to a kind of bicycle drive shaft.

Background technology

Bicycle drive shaft comprises middle pipe, wheel blade, axle center, and described middle pipe and wheel blade all are set on the described axle center, and the both sides of pipe are equipped with described wheel blade in described, and the two ends in described axle center all are installed with described flange nut.Usually the diameter in the more few axle center of tooth of flower-drum also successively decreases thereupon, therefore can't make the axle center of every kind of flower-drum all use large diameter axle center; The diameter in axle center is more little, and its compressive strength is more low.At present, in use, the two ends, axle center are easily deformed by external force extruding or bump, especially the axle center of small dimension.

The utility model content

For solving the problems of the technologies described above, the utility model provides a kind of bicycle drive shaft, and its axial compressive strength height is even the two ends, axle center are subjected to external force extruding or bump also to be difficult for deforming.

For achieving the above object, the technical solution of the utility model is as follows:

A kind of bicycle drive shaft, described flower-drum comprise pre-press, middle pipe, wheel blade, and the axle center, and described pre-press, middle pipe and wheel blade all are set on the described axle center, and the both sides of pipe are equipped with described wheel blade in described; The two ends in described axle center all are installed with described flange nut; Described pre-press is between described wheel blade and described flange nut; Be provided with coupler between described pre-press and the described flange nut, be equipped with thread inside and outside the described coupler, its internal screw thread matches with described axle center.

Preferably, described coupler is the T type, and the big close described pre-press of an end of its diameter.

Pass through technique scheme, a kind of bicycle drive shaft that the utility model provides is by installing coupler between described pre-press and described flange nut, be equipped with thread inside and outside the described coupler, its internal screw thread matches with described axle center, this coupler can improve the compressive strength at two ends, described axle center, even the two ends, axle center are subjected to external force extruding or bump also to be difficult for deforming.

Description of drawings

In order to be illustrated more clearly in the utility model embodiment or technical scheme of the prior art, will do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below.

Fig. 1 is the structural representation of the disclosed a kind of bicycle drive shaft of the utility model embodiment;

Fig. 2 is the exploded view of the disclosed a kind of bicycle drive shaft of the utility model embodiment;

Fig. 3 is the block diagram of the disclosed coupler of the utility model embodiment.

The specific embodiment

Below in conjunction with the accompanying drawing among the utility model embodiment, the technical scheme among the utility model embodiment is clearly and completely described.

Bicycle drive shaft as depicted in figs. 1 and 2, described flower-drum comprise pre-press 21, middle pipe 5, wheel blade 4, and axle center 3, and described pre-press 21, described middle pipe 5 and wheel blade 4 all are set on the described axle center 3, and the both sides of pipe 5 are equipped with described wheel blade 4 in described; The two ends in described axle center 3 all are installed with described flange nut 1; Described pre-press 21 is between described wheel blade 4 and described flange nut 1; Be provided with coupler 2 between described pre-press 21 and the described flange nut 1, be equipped with thread inside and outside the described coupler 2, its internal screw thread matches with described axle center 3.

In addition, with reference to figure 3, described coupler 2 is the T type, and the big close described pre-press 21 of an end of its diameter.

A kind of bicycle drive shaft that the utility model provides is by installing coupler 2 between described pre-press 21 and described flange nut 1, be equipped with thread inside and outside the described coupler 2, its internal screw thread matches with described axle center 3, and part external screw thread fixing and locking is at the back fork of bicycle end.This coupler 2 can improve the compressive strength at 3 two ends, described axle center, even 3 two ends, axle center are subjected to external force extruding or bump also to be difficult for deforming.

To the above-mentioned explanation of the disclosed embodiments, make this area professional and technical personnel can realize or use the utility model.Multiple modification to these embodiment will be apparent concerning those skilled in the art, and defined General Principle can realize under the situation that does not break away from spirit or scope of the present utility model in other embodiments herein.Therefore, the utility model will can not be restricted to these embodiment shown in this article, but will meet the wideest scope consistent with principle disclosed herein and features of novelty.

Claims

1. bicycle drive shaft, described flower-drum comprises pre-press, middle pipe, wheel blade, and the axle center, described pre-press, middle pipe and wheel blade all are set on the described axle center, and the both sides of pipe are equipped with described wheel blade in described; The two ends in described axle center all are installed with described flange nut; Described pre-press is characterized in that between described wheel blade and described flange nut, is provided with coupler between described pre-press and the described flange nut, is equipped with thread inside and outside the described coupler, and its internal screw thread matches with described axle center.

2. a kind of bicycle drive shaft according to claim 1 is characterized in that, described coupler is the T type, and the big close described pre-press of an end of its diameter.