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A bicycle hub sealing structure

A sealing structure, bicycle technology, applied in the direction of engine sealing, vehicle parts, engine components, etc., can solve the problems of reducing the service life of the hub, unsatisfactory sealing effect, affecting the performance of the hub, and achieves a simple and compact structure and good effect. Effect

Active Publication Date: 2016-08-17
久裕交通器材(深圳)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The bicycle hubs currently on the market have unsatisfactory sealing effects between the sleeve and the ratchet. Water and dust and other debris can easily enter the ratchet, which not only affects the performance of the hub, but also reduces the service life of the hub. it is necessary to improve

Method used

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  • A bicycle hub sealing structure
  • A bicycle hub sealing structure
  • A bicycle hub sealing structure

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Embodiment Construction

[0034] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0035] see figure 1 and figure 2 The first embodiment of the present invention shown includes an axle 10 , a nut 20 , a hub shell 30 , a sleeve 40 and a ratchet 50 . The rear end of the hub shell 30 and the front end of the sleeve 40 are respectively matched with a first ball bearing 61 and a second ball bearing 62 at the front and rear ends of the axle 10, and are screwed to the front and rear ends of the axle 10 with the nut 20 respectively. At the same time, the second ball bearing 62 cooperates with the sleeve 40 through balls; the rear end of the ratchet 50 is sleeved in the hub shell 30, and the middle part of the ratchet 50 is matched with the sleeve 40 through balls , the inner wall of the hub shell 30 is provided with a step 32, the axle 10 is provided with a ratchet fixing nut 80, the rear end of the ratchet 50 is positioned by the step 32,...

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Abstract

The invention discloses a bicycle hub sealing structure. The bicycle hub sealing structure comprises an axle, nuts, a hub shell, a sleeve barrel and a ratchet wheel, wherein the rear end of the hub shell and the front end of the sleeve barrel are respectively matched with the axle through a first ball bearing and a second ball bearing; the second ball bearing is simultaneously matched with the sleeve barrel through balls; the nuts are located at the front and rear ends of the axle; the rear end of the ratchet wheel is located in the hub shell, and the middle of the ratchet wheel is matched with the sleeve barrel through balls; a holding cavity is formed in the front end of the hub shell; a convex ring which enters the holding cavity is formed at the rear end of the sleeve barrel; a sleeve barrel oil seal is mounted between the outer wall of the convex ring and the inner wall of the holding cavity; a leakage-proof gasket is mounted between the inner wall of the convex ring and the ratchet wheel. According to the bicycle hub sealing structure, the holding cavity is formed at the front end of the hub shell, the convex ring which enters the holding cavity is formed at the rear end of the sleeve barrel, the sleeve barrel oil seal is mounted between the outer wall of the convex ring and the inner wall of the holding cavity, the leakage-proof gasket is mounted between the inner wall of the convex ring and the ratchet wheel, so that the ratchet wheel has dual-seal effect, the structure is simple and compact, and the effect is excellent.

Description

Technical field: [0001] The invention relates to the technical field of bicycle parts, in particular to an improved technology for a bicycle hub sealing structure. Background technique: [0002] The hub is an important part connecting the axle and spokes in the bicycle, and its quality directly affects the performance of the bicycle. During the use of bicycles, hubs are bound to be corroded by water, dust and other sundries. Therefore, how to isolate the internal mechanism of hubs from the external environment has become a research problem in the industry. [0003] The bicycle hubs currently on the market have unsatisfactory sealing effects between the sleeve and the ratchet. Water and dust and other debris can easily enter the ratchet, which not only affects the performance of the hub, but also reduces the service life of the hub. There is a need for improvement. Invention content: [0004] The object of the present invention is to provide a new bicycle hub sealing stru...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B60B27/04F16J15/18
Inventor 陈世伟
Owner 久裕交通器材(深圳)有限公司
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