CN202448662U

CN202448662U - Bidirectional drive hub

Info

Publication number: CN202448662U
Application number: CN2011205467479U
Authority: CN
Inventors: 李忠哲
Original assignee: CGENGFENG INDUSTRY CO LTD
Current assignee: CGENGFENG INDUSTRY CO LTD
Priority date: 2011-12-23
Filing date: 2011-12-23
Publication date: 2012-09-26
Anticipated expiration: 2021-12-23

Abstract

The utility model relates to a bidirectional drive hub, which comprises a hub shell and a disc holder, wherein the hub shell is provided with a first end, a second end, a through groove and a tooth holder; the first end and the second end of the hub shell are opposite; the first end and the second end of the hub shell are penetrated by the through groove; the gear holder is annular, and is positioned at the first end of the hub shell, and the internal side of the gear holder is provided with a plurality of occlusive teeth in a surrounding mode; and the disc holder is arranged on the tooth holder; two ends of the disc holder are respectively provided with a disc part and a drive part; the disc part is provided with more than one disc, the drive part is arranged in the tooth holder, and a plurality of drive teeth are annularly arranged at the periphery of the drive part and meshed with the occlusive teeth. Thus, the hub, which is only originally used for unidirectional ratch drive, can be used for the bidirectional drive mode so as to provide better adaptability.

Description

The two-way drive flower-drum

Technical field

The utility model relates to a kind of flower-drum of bicycle use, especially a kind of two-way drive flower-drum.

Background technology

The axle center that the flower-drum that generally is used for bicycle is installed in wheel is dumbbell shaped and an end is provided with fluted disc, and drives this fluted disc and make the flower-drum rotation driving the wheel running through chain, because general bicycle is when trampling backwards; Drive this flower-drum and rotate backwards, so be provided with escapement in this flower-drum, like " escapement " of TaiWan, China patent of invention notification number I249477; It has a transmission body; In transmission body wherein an end be provided with a joint portion, outer peripheral edges are concaved with several caulking grooves of arranging in the form of a ring in the joint portion, and are axial array more than two roads; And the scrobicular ring that communicates with each caulking groove; Differ from the caulking groove place in scrobicular ring and be provided with one and place restrictions on portion, and the portion of placing restrictions on of two adjacent scrobicular rings is 180 degree mutually, other is provided with several and lays respectively at the sour jujube piece in the caulking groove; And being located in the elastic clamp ring in sour jujube piece surface and the scrobicular ring, two free ends of elastic clamp ring lay respectively at the both sides of the portion of placing restrictions on; Be located in the flower-drum through these a plurality of sour jujubes are packaged, make this transmission body rotate when driving backwards, but these a plurality of sour jujube piece pivots are put and let this transmission body be the state of idle running.

In response to stunt and the performance of fancy bicycle; The performing artist is in order to control moving forward and backward of bicycle comprehensively; Particularly so-called fixed gear wheel (fixed-gear) stunt is used bicycle, and its flower-drum directly is fixedly arranged on one and does not produce idle running with fluted disc, when making the forward and backward transmission of chain court; This flower-drum also drives the forward and backward rotation of this wheel towards forward and backward rotation, so the flower-drum of Regular Bicycle can't be used for the stunt bicycle of this type.

Yet; Because the flower-drum of stunt bicycle and the design that fluted disc is fixedly arranged on one; Manufacturer needs other flower-drum with different dies and device fabrication this type; Therefore and the stunt bicycle belongs to the less classification of share of market, and the demand of making spent equipment cost and actual market is difficult to obtain the balance of profit, and to be that market is required look forward to a kind of flower-drum that can be used for stunt bicycle and Regular Bicycle.

The utility model content

Make in addition in order to solve the above-mentioned existing flower-drum needs that are used for the stunt bicycle, can't be common to problems such as unidirectional ratchet flower-drum, the main purpose of the utility model is to provide a kind of two-way drive flower-drum.

The technological means that the utility model used is to provide a kind of two-way drive flower-drum; Comprise a flower-drum housing; It has one first end, one second end, is worn a groove and a toothholder, and this first end of this flower-drum housing is in contrast to this second end, and this wears this first end and this second end that groove runs through this flower-drum housing; This toothholder in the form of a ring and be positioned at first end of this flower-drum housing, this toothholder medial surface is provided with a plurality of tooth engaged around ground; An and disc seat; It is installed in this toothholder; This disc seat has two ends and is respectively equipped with a disc portion and a drive division; This disc portion is equiped with more than one disc, and this drive division is installed in this toothholder and this drive division peripheral ring is provided with a plurality of tooth engaged that a plurality of driving gears are engaged in this toothholder.

Foregoing two-way drive flower-drum, this of this first end of wherein said flower-drum housing worn the groove medial surface and is provided with a plurality of screw threads, and the lateral surface of this toothholder is provided with these a plurality of screw threads that a plurality of screw thread screw locks are engaged in this flower-drum housing.

Foregoing two-way drive flower-drum, this disc portion of wherein said disc seat is provided with a plurality of screw thread screw locks and is engaged in this drive division.

Foregoing two-way drive flower-drum; This disc portion peripheral ring of wherein said disc seat is provided with a plurality of assembling ditches; Respectively this disc seat of this assembling bank extends axially direction configuration, respectively this more than one disc in the form of a ring and medial surface convex with a plurality of assembled blocks and be installed in these a plurality of assembling ditches of this disc portion.

This flower-drum housing of the two-way drive flower-drum of the utility model is for generally being used for the flower-drum of unidirectional ratchet transmission; Utilize this drive division of this disc seat to be provided with this tooth engaged that these a plurality of driving gears mesh these toothholders; And make script only can be used for unidirectional ratchet type of drive; And transfer the two-way drive mode that the stunt bicycle uses that can be used for to; Better comformability so is provided, does not need the flower-drum of the special-purpose two-way drive mode of other remanufacturing stunt bicycle, and flower-drum housing that can same type is applicable to two kinds of main production types in bicycle market; With the passing of time produce abrasion if this flower-drum housing uses, also can find the commodity of replacement to assemble easily, have preferable replaceability.

Description of drawings

Fig. 1 is the stereoscopic exploded drawings of the utility model preferred embodiment.

Fig. 2 is the stereoscopic assembly drawing of the utility model preferred embodiment.

Fig. 3 is the generalized section of the utility model preferred embodiment.

Fig. 4 is the stereoscopic exploded drawings of the utility model second preferred embodiment.

Fig. 5 is the stereoscopic exploded drawings of the utility model the 3rd preferred embodiment.

[main element nomenclature]

10 flower-drum housings 11 are worn groove

111 screw threads, 12 toothholders

121 tooth engaged, 122 screw threads

20,20a, 20b disc seat

21,21a, 21b disc portion

211,211a disc 212 insertion ends

213 assembling ditches, 214 assembled blocks

22,22a drive division 221 driving gears

222 containing holes.

The specific embodiment

For technical characterictic and practical effect that can detail knowledge the utility model, and can implement according to the content of specification sheets, further with as each preferred embodiment shown in the drawings, specify as the back:

A kind of two-way drive flower-drum of the utility model, please referring to figs. 1 through first preferred embodiment of Fig. 3, it comprises a flower-drum housing 10 and a disc seat 20.

This flower-drum housing 10 is for generally being used for the flower-drum of unidirectional ratchet transmission; This flower-drum housing 10 generally be dumbbell shaped and have one first end, one second end, is worn a groove 11 and a toothholder 12; This first end is in contrast to this second end; This wears this first end and this second end that groove 11 runs through this flower-drum housing 10; This of this first end of this flower-drum housing 10 worn groove 11 medial surfaces and is provided with a plurality of screw threads 111 around ground; This toothholder 12 in the form of a ring and be installed in this first end of this flower-drum housing 10, the medial surface of this toothholder 12 is provided with a plurality of tooth engaged 121 these toothholders 12 around ground lateral surface is provided with a plurality of screw threads 122 corresponding to a plurality of screw threads 111 in this first end of this flower-drum housing 10 around ground, makes this toothholder 12 be able to screw lock and wears in the groove 11 in this of this first end of this flower-drum housing 10.

This disc seat 20 is installed in this toothholder 12 of this flower-drum housing 10; This disc seat 20 has opposite two ends and is provided with a disc portion 21 and a drive division 22 lays respectively at the two ends of this disc seat 20, and this disc portion 21 is equiped with a disc 211 and the chain institute transmission that do not shown by a figure; This drive division 22 is installed in this toothholder 12 and these drive division 22 peripheral rings are provided with these a plurality of tooth engaged 121 that a plurality of driving gears 221 are engaged in this toothholder 12 around ground; More preferably; The quantity of these a plurality of driving gears 221 can be corresponding to these a plurality of tooth engaged 121 of this toothholder 12; Though or the quantity of these a plurality of driving gears 221 do not equal this a plurality of tooth engaged 121, can be engaged in these a plurality of tooth engaged 121 partly accordingly.

Thus; This disc 211 of this disc portion 21 is driven and is directly driven a plurality of driving gears 221 rotations of this of this drive division 22; Utilize these a plurality of driving gears 221 to be engaged in these a plurality of tooth engaged 121 of this toothholder 12 and can let this this flower-drum housing 10 of disc 211 transmissions; Because this flower-drum housing 10 of the two-way drive flower-drum of the utility model is for generally being used for the flower-drum of unidirectional ratchet transmission; Utilize this drive division 22 of this disc seat 20 to be provided with this tooth engaged 121 that these a plurality of driving gears 221 mesh these toothholders 12; And make script only can be used for unidirectional ratchet type of drive, and transfer the two-way drive mode that the stunt bicycle uses that can be used for to, better comformability so is provided; Do not need the flower-drum of the special-purpose two-way drive mode of other remanufacturing stunt bicycle, and flower-drum housing 10 that can same type is applicable to two kinds of main production types in bicycle market; With the passing of time produce abrasion if this flower-drum housing 10 uses, also can find the commodity of replacement to assemble easily, have preferable replaceability.

Please with reference to shown in Figure 4; This 21a of disc portion and this drive division 22a of this disc seat 20a of second preferred embodiment of the utility model can be separated; The peripheral ring that the 21a of this disc portion extends an insertion end 212 and this insertion end 212 is provided with screw thread around ground, and this drive division 22a have a containing hole 222 can ccontaining this insertion end 212 and engage with these insertion end 212 screw locks.

Please with reference to shown in Figure 5; This 21b of disc portion peripheral ring of this disc seat 20b of the 3rd preferred embodiment of the utility model is provided with a plurality of assembling ditches 213; Respectively this assembling ditch 213 extends axially the direction configuration along this disc seat 20b; A plurality of disc 211a are sheathed on the 21b of this disc portion; These a plurality of discs combine unique body in the form of a ring and medial surface convex with a plurality of assembled blocks 214 and can be installed in these a plurality of assembling ditches 213 of the 21b of this disc portion, make the utility model be adapted to the design of a plurality of disc 211a of changeable fluted disc thus.

The above; It only is the preferred embodiment of the utility model; Be not that the utility model is done any pro forma restriction, any those skilled in the art are if in the scope that does not break away from technical characterictic that the utility model is carried; Utilize technology contents that the utility model discloses to do the local equivalent embodiment that changes or modify, all still belong in the scope of the utility model technical characterictic.

Claims

1. a two-way drive flower-drum is characterized in that, comprising:

One flower-drum housing; It has one first end, one second end, is worn a groove and a toothholder; This first end of this flower-drum housing is in contrast to this second end; This wears this first end and this second end that groove runs through this flower-drum housing, this toothholder in the form of a ring and be positioned at first end of this flower-drum housing, this toothholder medial surface is provided with a plurality of tooth engaged around ground; And

One disc seat; It is installed in this toothholder; This disc seat has two ends and is respectively equipped with a disc portion and a drive division, and this disc portion is equiped with more than one disc, and this drive division is installed in this toothholder and this drive division peripheral ring is provided with a plurality of tooth engaged that a plurality of driving gears are engaged in this toothholder.

2. two-way drive flower-drum as claimed in claim 1 is characterized in that, this of this first end of described flower-drum housing worn the groove medial surface and be provided with a plurality of screw threads, and the lateral surface of this toothholder is provided with these a plurality of screw threads that a plurality of screw thread screw locks are engaged in this flower-drum housing.

3. according to claim 1 or claim 2 two-way drive flower-drum is characterized in that this disc portion of described disc seat is provided with a plurality of screw thread screw locks and is engaged in this drive division.

4. according to claim 1 or claim 2 two-way drive flower-drum; It is characterized in that; This disc portion peripheral ring of described disc seat is provided with a plurality of assembling ditches; Respectively this disc seat of this assembling bank extends axially direction configuration, respectively this more than one disc in the form of a ring and medial surface convex with a plurality of assembled blocks and be installed in these a plurality of assembling ditches of this disc portion.

5. two-way drive flower-drum as claimed in claim 3; It is characterized in that; This disc portion peripheral ring of described disc seat is provided with a plurality of assembling ditches; Respectively this disc seat of this assembling bank extends axially direction configuration, respectively this more than one disc in the form of a ring and medial surface convex with a plurality of assembled blocks and be installed in these a plurality of assembling ditches of this disc portion.