Bicycle rack claw structure

Abstract

The invention provides an alcula structure of a bike rack. The structure is that a bike rack is combined with a rear wheel body; the two sides of the bike are respectively matched with an inclined surface component which is locked together with a keying screw cap, wherein, the rear fork of the bike rack is provided with an alcula; a through-grooving which is opened backwards and is tangent to thealcula, and the through-grooving is in a certain length; the alcula is provided with a low inclined surface along the direction of through-grooving and at the opening of the through-grooving of external side, while a high inclined surface is gradually formed along the direction of an inner part of the through-groove which is comparatively thick; a mandrel is sheathed at the center of the hub by the wheel body of the bike extends out of the two sides; a chain of driven gear is arranged at the one side of the rear wheel body; the center of the inclined surface is provided with a through hole; amatching inclined surface with one side higher and the other side lower is arranged at the internal side of the inclined surface component; due to the matching of the inclined surface component and the setting of the higher and lower inclined surfaces, the keying effect of back wheel is better and the circumstances of the alcula loosening and breaking can be avoided.

Description

technical field [0001] The invention relates to a hook structure of a bicycle frame. The matching arrangement between the frame and the wheel body of the bicycle is to use the hook pawls at the front and rear forks of the frame for the wheel body to be sleeved and then locked. , the present invention is to research and design the hook claw structure. Background technique [0002] Bicycles are currently the most suitable means of transportation for sports and short-distance travel, and the power of bicycles is mainly through pedaling, with chainrings and chains to drive the interlocking gears on the rear wheel body, so that the rear wheel body has forward power. , and the aforementioned structures are all installed on a frame for use, and the combination structure of the rear wheel body and the frame, such as Figure 5 , Image 6 , Figure 7 As shown, the matching arrangement between the frame 10 of the bicycle and the rear wheel body 20 is used to set the hook 11 at the re...

AI Technical Summary

Problems solved by technology

[0004] If the nut 24 is not locked tightly enough at this time, when the chain pulls the interlocking gear 22 of the rear wheel body 20 during riding, a forward pulling force will be generated, which will move the spindle 21 of the rear wheel body 20 The original threading groove 12 positions will make the chain loose, causing the chain to fall off easily;

[0005] On the other hand, if the nut 24 is tightly locked, the rear wheel body 20 can be locked and fixed without being pulled by the chain to move forward. Therefore, when the nut 24 is locked too tightly, one part of the hook 11 will be compressed and deformed by the nut 24. When the rear wheel body 20 needs to be adjusted next time, the compressed deformation will affect the rear wheel. Relocking of body 20

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