CN102049967A

CN102049967A - Normally closed type rear hub structure of bike

Info

Publication number: CN102049967A
Application number: CN2009102120079A
Authority: CN
Inventors: 陈青树
Original assignee: Chosen Co Ltd
Current assignee: Chosen Co Ltd
Priority date: 2009-11-06
Filing date: 2009-11-06
Publication date: 2011-05-11
Anticipated expiration: 2029-11-06
Also published as: CN102049967B

Abstract

The invention discloses a normally closed type rear hub structure of a bike. A fluted disc sleeve is concavely provided with a plurality of control grooves at the circular periphery of a ratchet holder; a ratchet member is sleeved on the ratchet holder and is provided with accommodating chambers corresponding to the control grooves; each accommodating chamber is pivoted with a ratchet and a rolling member and is limited between each control groove and each ratchet through the rolling member; the ratchet member is axially and convexly provided with a lug; a damping member is combined with the lug of the ratchet member through a convex clamping groove; a hub shell is provided with an accommodating space which covers the ratchet member and the damping member; and the accommodating space is internally combined with an oblique alligatoring ring which is arranged at the outer end of the ratchet to present a meshed shape. Through the structure, the rolling member of the normally closed type rear hub structure of the bike can match the control grooves to take the effects of ejecting and supporting outwards in a rolling way, thereby ensuring that the rotary swing of the ratchet is smoother, reducing abrasion caused by use and increasing the durability of the normally closed type rear hub structure of the bike.

Description

The normally closed bicycle post colored hub structure

Technical field

The present invention relates to be applied to the colored hub structure of bicycle, especially refer to a kind of normally closed bicycle post colored hub structure, its rachet has been inserted rolling member in through hole, and by the rotation potential difference of fluted disc cover with the rachet generation, make rolling member cooperate control slit to produce the effect of outwards shoring with roll mode, make the swing action of ratchet more smooth and easy by this, and reduce and use the wearing and tearing that caused, to increase its durability.

Background technology

Hub ratchet structure on the existing bicycle, as Fig. 8, sight shown in Figure 9 it, it comprises: a fluted disc seat 50 convexes with a plurality of controll blocks 51 in the end, those controll blocks 51 all indent are formed with linked slot 52, one rachet 60 includes ratchet base 61, ratchet 62 and elastic component 63, ratchet base 61 offers a plurality of ratchet slots 611 in outside wall surface, and ratchet slot 611 contents are provided with ratchet 62, the interlock post 621 that this ratchet 62 is convexly equipped with all is slidedly arranged in the linked slot 52, again the outer surface of the outside wall surface place of this ratchet base 61 and ratchet 62 all around through hole 64 and ring-type offer and tighten annular groove 65, and in tightening annular groove 65, be arranged with elastic component 63, one stop ring 70 offers positioning groove 71, and the locating piece 612 of positioning groove 71 and ratchet base 61 agrees with and forms synchronous shape, this stop ring 70 is provided with damping piece 73 in perforation 72 places again, and the inner edge of damping piece 73 is close to block cover 74, one hub shells 80 has helical teeth ring 81 in inwall place clip, and these helical teeth ring 81 ring-types are arranged at the outer end of ratchet 62.

When trampling stretcher when driving bicycle, its fluted disc seat 50 is driven by chain, and the rotation potential difference of generation fluted disc seat 50 and rachet 60, the linked slot 52 of fluted disc seat 50 is axial rotation at this moment, and the interlock post 621 of promotion ratchet 62 is by the outside side slippage of medial extremity, form the interlock state of fluted disc seat 50 and rachet 60 by this, again when trampling stretcher and reverse, this fluted disc seat 50 is oppositely directed rotation, fluted disc seat 50 also oppositely promotes the interlock post 621 of this ratchet 62 in the linked slot 52 at controll block 51 places, make interlock post 621 by the inside side slippage of external side end, being about to ratchet 62 pushes in the ratchet slot 611, make the ratchet 62 and the helical teeth ring 81 of hub shell 80 ends fail to conflict, can obtain when affecting bicycle, the effect that the neither meeting of its stretcher is rotated, and can eliminate ratchet 62 and collide the sound that is brought continuously with helical teeth ring 81 generations of hub shell 80 ends.

The above-mentioned existing structure of detailed sight is not difficult to realize that it has remained a little weak point, and major cause is as follows:

One, the control of its ratchet 62 produces by the rotation potential difference of fluted disc seat 50 with rachet 60, and utilize the slip of interlock post 621 in linked slot 52 of ratchet 62, yet interlock post 621 produces sliding friction is arranged, its start is had some setbacks, also increase the wearing and tearing when using, promptly reduced its durability person.

Two, its stop ring 70 produces rotational resistance with the 72 built-in damping pieces 73 of boring a hole, produce potential difference by this control fluted disc seat 50 with rachet 60, because damping piece 73 is a roll film formula spring, therefore the disappearance of the unequal and easy elastic fatigue of outer tension force is arranged, and can not carry out the adjustment of resistance size.

In view of this, the inventor is in manufacturing development and the design experiences of being engaged in Related product for many years, at above-mentioned target, in detail after design and the scrupulous assessment, eventually the present invention of a true tool practicality.

Summary of the invention

The technical matters point that desire solves:

Existing hub ratchet structure, the control of its ratchet produces by the rotation potential difference of fluted disc seat and rachet, and utilize the slip of interlock post in linked slot of ratchet, yet the interlock post produces sliding friction is arranged, its start is had some setbacks, also increased the wearing and tearing when using, promptly reduced its durability, this is the technical matters point that desire solves.

The technical characterstic of dealing with problems:

A kind of normally closed bicycle post colored hub structure, it includes: a fluted disc cover, one rachet, one damping piece and a hub shell combine, one fluted disc cover is can be with fluted disc (figure indicate) one-body molded and be single fluted disc shape, perhaps, fluted disc is placed in the annular surface place and axially offers a plurality of fluted disc grooves, and the fluted disc groove is used for sheathed multi-disc fluted disc, and formation fluted disc cover and fluted disc is synchronous, this fluted disc cover is slidingly equipped with an axle, and be extended with ratchet base to a side, the ring-type peripheral region of this ratchet base is concaved with a plurality of control slits, this ratchet base is arranged with reenforcing sleeve in outer surface again, this reenforcing sleeve is concaved with the groove identical with control slit, and have compared to the higher material hardness of ratchet base, be provided with a plurality of protrusions between this fluted disc cover and the ratchet base again, and by being separated with a plurality of depressed parts between protrusion, one rachet is sheathed on ratchet base, and corresponding control slit and offer a plurality of chambers that are installed with, this is installed with and all is pivoted with ratchet in the chamber, and be formed with pivoting hole in the bottom expansion that is installed with the chamber, and ratchet cooperates pivoting hole to be formed with axial region, and with the axial region swing state that the axle center produces ratchet, be penetrated with through hole in place, the chamber of being installed with again, this through hole is equipped with rolling member, and be limited between control slit and the ratchet with rolling member, wherein, rachet convexes with the limiting stopper of equivalent to the depressed part of fluted disc cover, and limiting stopper is subjected to the restriction of protrusion and can controls the rotating range of rachet, ratchet also convexes with the limited post of equivalent to depressed part in addition, and limited post also can be subjected to the restriction of protrusion equally and can control the rotating range of rachet, the outer surface of the outside wall surface place of this rachet and ratchet is all cutd open to be provided with and is tightened annular groove in addition, and be provided with elastic ring in tightening the annular groove content, make ratchet be and tighten spacing shape to the chamber of being installed with, this elastic ring is for being formed with a breach, one ora terminalis place of this breach is formed with the fixed part of invagination bending, and fixed part wears rachet and is cooperated the fixed orifice of offering by tightening in the annular groove, fix this elastic ring by this, this rachet is in axially convexing with projection again, one damping piece combines with the projection formation of rachet with the draw-in groove of indent, this damping piece is arranged with a sleeve again, and with the sleeve sliding sleeve in the axle place, the two ends of this sleeve contact at the bearing of fluted disc cover end and the bearing of hub shell end respectively, form the location of the spacing of fluted disc cover and hub shell by sleeve, this damping piece offers a plurality of perforation to socket end again, and in perforation, all be provided with steel ball and elastic component, be locked on the outer end of perforation again by a locking bolt, make the urgent sleeve of steel ball and form the rotary resistance of damping piece, one hub shell is formed with an accommodation space, and with this rachet of accommodation space upper shield and damping piece, be combined with a helical teeth ring again in this accommodation space, and being arranged at the outer end of ratchet and being by the helical teeth ring can meshing shape, structure in sum, this ratchet is in being installed with indoor the spacing of rolling member and damping piece that be subjected to, and the resistance by damping piece reaches the start of opening with closed, and can keep all being in closure state under the normality, can make it have the effect of noiseless interlock.

The present invention contrasts the effect of prior art:

One, its rachet has been inserted rolling member in through hole, and by the rotation potential difference of fluted disc cover with the rachet generation, make rolling member cooperate control slit to produce the effect of outwards shoring with roll mode, make the swing action of ratchet more smooth and easy by this, and reduce and use the wearing and tearing that caused, to increase its durability.

Two, its damping piece is equiped with a plurality of steel balls and elastic component in perforation inside, and push away the support steel ball by the tension force of elastic component, steel ball is directly oppressed in the sleeve place, produce the rotational resistance of damping piece by this, the tension force of this elastic component is adjusted by the screw lock state of locking bolt again, to increase the stability of damping piece.

Description of drawings

Fig. 1: be three-dimensional combination figure of the present invention;

Fig. 2: be three-dimensional exploded view of the present invention;

Fig. 3: be side partial sectional view of the present invention;

Fig. 4: for fluted disc seat of the present invention in the schematic perspective view that just changes state;

Fig. 5: for the present invention just transfers to cardon in the A-A section;

Fig. 6: for fluted disc seat of the present invention in the schematic perspective view of inverted status;

Fig. 7: for cardon is made in the counter-rotating of A-A section of the present invention;

Fig. 8: be existing three-dimensional exploded view;

Fig. 9: be existing cross-sectional schematic.

[main element nomenclature]

Part of the present invention:

Bearing-----101,102

Fluted disc cover----10 fluted disc grooves----11

Axle----12 ratchet bases----13

Control slit----131 protrusions----14

Depressed part----15

----20 are installed with chamber----21 to rachet

Pivoting hole----211 through holes-----212

Ratchet----22 axial regions-----221

Limited post----222 rolling members----23

Limiting stopper----24 tighten annular groove---25,223

Fixed orifice----251 elastic rings----26

Fixed part----261 projections-----27

Damping piece----30 draw-in grooves-----31

Sleeve----32 perforation-----33

Steel ball----34 elastic components----35

Locking bolt-----36

Hub shell----40 accommodation space---41

Helical teeth ring----42

Existing part:

Fluted disc seat----50 controll blocks----51

Linked slot----52

Rachet----60 ratchet bases----61

Ratchet slot----611 ratchets-----62

Interlock post----621 elastic components----63

Through hole----64 tighten annular groove---65

Stop ring----70 positioning grooves----71

Perforation----72 damping pieces----73

Block cover----74

Hub shell----80 helical teeth rings----81

The specific embodiment

Understand and understanding for having purpose of the present invention, feature and effect further, below please cooperate [brief description of drawingsfig] to describe in detail now as the back:

Earlier please by Fig. 1, Fig. 2, sight shown in Figure 3 it, a kind of normally closed bicycle post colored hub structure, it includes: fluted disc cover 10, one rachet 20, one damping piece 30 and a hub shell 40 combine, one fluted disc cover 10 is can be with fluted disc (figure indicates) one-body molded and be single fluted disc shape, perhaps, fluted disc cover 10 axially offers a plurality of fluted disc grooves 11 in the annular surface place, and fluted disc groove 11 is used for sheathed multi-disc fluted disc, and formation fluted disc cover 10 and fluted disc is synchronous, this fluted disc cover 10 is slidingly equipped with an axle 12, and be extended with ratchet base 13 to a side, the ring-type peripheral region of this ratchet base 13 is concaved with a plurality of control slits 131, this ratchet base 13 is arranged with reenforcing sleeve (figure does not indicate) in outer surface again, this reenforcing sleeve is concaved with the groove identical with control slit 131, and have compared to the higher material hardness of ratchet base 13, be provided with a plurality of protrusions 14 between this fluted disc cover 10 and the ratchet base 13 again, and be separated with a plurality of depressed parts 15 by 14 of protrusions, one rachet 20 is sheathed on ratchet base 13, and corresponding control slit 131 and offer a plurality of chambers 21 that are installed with, this is installed with and all is pivoted with ratchet 22 in the chamber 21, and be formed with pivoting hole 211 in the bottom expansion that is installed with chamber 21, and ratchet 22 cooperates pivoting hole 211 to be formed with axial region 221, and be the swing state that the axle center produces ratchet 22 with axial region 221, be penetrated with through hole 212 in being installed with 21 places, chamber again, these through hole 212 places are equipped with rolling member 23, and be limited between control slit 131 and the ratchet 22 with rolling member 23, wherein, rachet 20 convexes with the limiting stopper 24 of equivalent to the depressed part 15 of fluted disc cover 10, and limiting stopper 24 is subjected to the restriction of protrusion 14 and can controls the rotating range of rachet 20, ratchet 22 also convexes with the limited post 222 of equivalent to depressed part 15 in addition, and limited post 222 also can be subjected to the restriction of protrusion 14 equally and can control the rotating range of rachet 20, the outer surface of the outside wall surface place of this rachet 20 and ratchet 22 is all cutd open to be provided with and is tightened annular groove 25 in addition, 223, and in tightening annular groove 25,223 contents are provided with elastic ring 26, make ratchet 22 be and tighten spacing shape to being installed with chamber 21, this elastic ring 26 is formed with a breach, one ora terminalis place of this breach is formed with the fixed part 261 of invagination bending, and fixed part 261 wears the fixed orifice of offering 251 that rachet 20 cooperates by tightening in the annular groove 25, fix this elastic ring 26 by this, this rachet 20 is in axially convexing with projection 27 again, one damping piece 30 combines with projection 27 formation of rachet 20 with the draw-in groove 31 of indent, this damping piece 30 is arranged with a sleeve 32 again, and with sleeve 32 sliding sleeves in axle 12 places, the two ends of this sleeve 32 contact at fluted disc respectively and overlap the bearing 101 of 10 ends and the bearing 102 of hub shell 40 ends, form the location of distance between fluted disc cover 10 and the hub shell 40 by sleeve 32, this damping piece 30 offers a plurality of perforation 33 to sleeve 32 ends again, and all be provided with steel ball 34 and elastic component 35 in 33 in perforation, be locked on the outer end of perforation 33 again by a locking bolt 36, make steel ball 34 urgent sleeves 32 and the rotary resistance of formation damping piece 30, one hub shell 40 is formed with an accommodation space 41, and with accommodation space 41 upper shields this rachet 20 and damping piece 30, be combined with a helical teeth ring 42 in this accommodation space 41 again, and being arranged at the outer end of ratchet 22 and being by helical teeth ring 42 can meshing shape, structure in sum, this ratchet 22 is subjected to the spacing of rolling member 23 and damping piece 30 in being installed with chamber 21, and the resistance by damping piece 30 reaches the start of opening with closed, and can keep all being in closure state under the normality, can make it have the effect of noiseless interlock.

The combination of its structure, please again by Fig. 2 and sight shown in Figure 3 it, its rachet 20 is sheathed on ratchet base 13 places of fluted disc cover 10, and be aligned with the outer end of control slit 131 by being installed with chamber 21, be arranged in the through hole 212 with rolling member 23 again, make rolling member 23 be absorbed in control slit 131, this ratchet 22 is inserted by the side that is installed with chamber 21 in addition, and be installed with the axial region 221 of ratchet 22 by pivoting hole 211, this elastic ring 26 is sheathed on rachet 20 and the ratchet 22 formed annular grooves 25 of tightening again, 223 places, prevent that by this ratchet 22 from producing sidesway, damping piece 30 is sheathed on a sleeve 32 places, and in the perforation 33 places inserted steel ball 34 in regular turn, elastic component 35, and locking and packing elastic component 35 with locking bolt 36, make steel ball 34 oppress and produce suitable resistance in sleeve 32, be sheathed on axle 12 by sleeve 32 again and be rotatable, the draw-in groove 31 of damping piece 30 combines the location with the projection 27 of rachet 20 simultaneously, promptly form the synchronous regime of damping piece 30 and rachet 20, this hub shell 40 is inserted in ratchet base 13 ends of accommodation space 41 ends to fluted disc cover 10 in addition, and with accommodation space 41 coatings its damping piece 30 and rachet 20, this moment, the helical teeth ring 42 of hub shell 40 was the periphery that is surrounded on rachet 20, and can produce meshing interlock with ratchet 22, this sleeve 32 is that the bearing 101102 that is subjected to fluted disc to overlap 10 ends and hub shell 40 ends is oppressed again, promptly forms the limit effect between fluted disc cover 10 and the hub shell 40.

The situation of its actual start, again please by Fig. 3, Fig. 4, Fig. 5 cooperate sight shown in Figure 2 it, it mainly is arranged at the bicycle rear place, this fluted disc cover 10 is used to connect fluted disc (figure does not indicate), this fluted disc can be driven by the chain of bicycle pedal end interlock, and that axle 12 combines with vehicle frame is fixing, in addition 40 of hub shells are in order to connect this bicycle rear, when bicycle does not use, this ratchet 22 is subjected to tightening of elastic ring 26 and is limited in the containing groove 21, be located at the outside of rachet 20 again with damping piece 30 retainings, can prevent that ratchet 22 from producing left and right sides sidesway, and rolling member 23 is placed in the control slit 131 of ratchet base 13, and the contraction state by ratchet 22, make the ratchet 22 and the helical teeth ring 42 of hub shell 40 not be conflict, when trampling stretcher when driving bicycle again, its fluted disc cover 10 is driven by chain, when this fluted disc cover 10 rotates, its rachet 20 produces continuous action relation with projection 27 and damping piece 30, and the resistance that is subjected to damping piece 30 influences, be not easy to be rotated shape and be, produce the rotation potential difference of fluted disc cover 10 and rachet 20 by this, this moment, the control slit 131 of ratchet base 13 was axial rotation, and the rolling member 23 of promotion ratchet 22 bottoms, this moment, rolling member 23 broke away from control slit 131 with roll mode, eject the effect of ratchet 22 by this generation, this ratchet 22 is that the axle center is to being installed with chamber 21 outer end beats with axial region 221, make ratchet 22 produce meshing with helical teeth ring 42, form the interlock state of fluted disc cover 10 and rachet 20 by this, simultaneously, when ratchet 22 outside being installed with chamber 21 during beat, its ratchet 22 can rely on peripheral helical teeth ring 42, and by 40 rotations of helical teeth ring 42 interlock hub shells, be and drive the start that bicycle rear rotates, again when trampling stretcher and reverse, see also Fig. 6 again, sight shown in Figure 7 it, this fluted disc cover 10 is oppositely directed rotation, these fluted disc cover 10 control slits 131 in ratchet base 13 places also are backward rotation, and rachet 20 ends present quiescence owing to the drag effects that is subjected to damping piece 30, this moment, rolling member 23 was absorbed in the control slit 131 with the rotation potential difference of rachet 20 by ratchet base 13, this moment, ratchet 22 was not subjected to the outer top of rolling member 23, and be oppositely ratchet 22 to be pushed with helical teeth ring 42 and be installed with in the chamber 21, make the ratchet 22 and the helical teeth ring 42 of hub shell 40 ends fail to conflict, eliminate ratchet 22 and helical teeth ring 42 because of colliding the sound that is produced continuously by this, and can prevent excessively collision and cause structural damage, moreover, if drive the situation that hub shell 40 rotates by the trailing wheel end, this ratchet 22 is subjected to the promotion of helical teeth ring 42, and the resistance that cooperates damping piece 30 ends to be produced, and make the stable closure of ratchet 22 in being installed with chamber 21, can keep ratchet 22 and helical teeth ring 42 to be and often open shape, hereat hub shell 40 before, the back changes neither can drive this rachet 20, this rachet 20 can reach the effect of the restriction anglec of rotation by the limiting stopper 24 and the protrusion 14 of limited post 222 corresponding fluted disc covers 10 again, rolling member 23 only can be rolled in the appropriate location of control slit 131, increase the stability of its interlock state by this, in sum, can obtain when affecting bicycle, the neither effect that can rotate of its stretcher, and reach its no sound effective value by this, to improve this practicality.

By the structure of above-mentioned specific embodiment, can obtain following benefit:

One, its rachet 20 has been inserted rolling member 23 in through hole 212, and by the rotation potential difference of fluted disc cover 10 with rachet 20 generations, make rolling member 23 cooperate control slit 131 to produce the effect of outwards shoring with roll mode, make the swing action of ratchet 22 more smooth and easy by this, and reduce and use the wearing and tearing that caused, to increase its durability;

Two, its damping piece 30 is equiped with a plurality of steel balls 34 and elastic component 35 in perforation 33 inside, and push away support steel ball 34 by the tension force of elastic component 35, steel ball 34 is directly oppressed in sleeve 32 places, produce the rotational resistance of damping piece 30 by this, the tension force of this elastic component 35 is adjusted by the screw lock state of locking bolt 36 again, to increase the stability of damping piece 30.

In sum, the present invention has reached breakthrough structure design really, and has the summary of the invention of improvement, can reach simultaneously usability and progressive on the industry again, and the present invention does not see any publication, also have a novelty, the regulation when meeting the relevant law of patent law proposes application for a patent for invention in accordance with the law.

The above only is a preferred embodiment of the present invention, when can not with qualification scope of the invention process; Promptly the equalization of being done according to the present patent application claim generally changes and modifies, and all should still belong in the scope that patent of the present invention contains.

Claims

1. normally closed bicycle post colored hub structure is characterized in that comprising:

One fluted disc cover, this fluted disc cover is slidingly equipped with an axle, and is extended with ratchet base to a side, and the ring-type peripheral region of this ratchet base is concaved with a plurality of control slits;

One rachet, this rachet is sheathed on ratchet base, and corresponding control slit and offer a plurality of chambers that are installed with, this is installed with and all is pivoted with ratchet in the chamber, and the place is penetrated with through hole in the chamber of being installed with, this through hole is equipped with rolling member, and is limited between control slit and the ratchet with rolling member, and this rachet is in axially convexing with projection again;

One damping piece, this damping piece combines with the projection formation of rachet with the draw-in groove of indent, this damping piece is arranged with a sleeve again, and with the sleeve sliding sleeve in the axle place, this damping piece offers a plurality of perforation to socket end again, and in perforation, all be provided with steel ball and elastic component, and be locked on the outer end of perforation again by a locking bolt, make the urgent sleeve of steel ball and form the rotary resistance of damping piece; And

One hub shell, this hub shell is formed with an accommodation space, and with this rachet of accommodation space upper shield and damping piece, is combined with a helical teeth ring again in this accommodation space, and be arranged at the outer end of ratchet and be by the helical teeth ring can meshing shape.

2. normally closed bicycle post colored hub structure according to claim 1 is characterized in that, described fluted disc is placed in the annular surface place and axially offers a plurality of fluted disc grooves, and described a plurality of fluted disc grooves are used for sheathed multi-disc fluted disc, and forms the synchronous of fluted disc cover and fluted disc.

3. normally closed bicycle post colored hub structure according to claim 1 is characterized in that, described fluted disc cover is one-body molded with fluted disc, and is single fluted disc shape.

4. normally closed bicycle post colored hub structure according to claim 1, it is characterized in that, be provided with a plurality of protrusions between described fluted disc cover and the ratchet base, and by being separated with a plurality of depressed parts between protrusion, in addition rachet convexes with the limiting stopper of equivalent to depressed part, and limiting stopper is subjected to the restriction of protrusion and can controls the rotating range of rachet.

5. normally closed bicycle post colored hub structure according to claim 1, it is characterized in that, be provided with a plurality of protrusions between described fluted disc cover and the ratchet base, and by being separated with a plurality of depressed parts between protrusion, in addition ratchet convexes with the limited post of equivalent to depressed part, and limited post is subjected to the restriction of protrusion and can controls the rotating range of rachet.

6. normally closed bicycle post colored hub structure according to claim 1 is characterized in that, described rachet enlarges in the bottom that is installed with the chamber and is formed with pivoting hole, and ratchet cooperates pivoting hole and be formed with axial region, and is the swing state that the axle center produces ratchet with the axial region.

7. normally closed bicycle post colored hub structure according to claim 1, it is characterized in that, the outside wall surface place of described rachet and the outer surface of ratchet are all cutd open to be provided with and are tightened annular groove, and are provided with elastic ring in tightening the annular groove content, make ratchet be to the chamber of being installed with and tighten spacing shape.

8. normally closed bicycle post colored hub structure according to claim 7, it is characterized in that, described elastic ring is for being formed with a breach, one ora terminalis place of this breach is formed with the fixed part of invagination bending, and fixed part wears rachet and is cooperated the fixed orifice of offering by tightening in the annular groove, fix this elastic ring by this.

9. normally closed bicycle post colored hub structure according to claim 1 is characterized in that, the two ends of described sleeve contact at the bearing of fluted disc cover end and the bearing of hub shell end respectively, forms the location of distance between fluted disc cover and the hub shell by sleeve.

10. normally closed bicycle post colored hub structure according to claim 1 is characterized in that described ratchet base is arranged with reenforcing sleeve in outer surface, and this reenforcing sleeve is concaved with the groove identical with control slit, and has compared to the higher material hardness of ratchet base.