Background technology
Bicycle be a kind of have concurrently ride instead of walk, lie fallow, the vehicle of effectiveness such as motion, body-building and contest, and the development of each element of bicycle and assembly, for in response to different riders, drive mode, effectiveness and environment, even if identity element or assembly, also all exploitation has a plurality of kinds of different patterns, to meet aforementioned different demand.
For flower-drum, flower-drum on the market mainly is divided into the unidirectional output of two-way input and two kinds of kenels of the unidirectional output of unidirectional input at present, no matter the flower-drum of the unidirectional output of wherein said two-way input is meant when stepping on forward or backwards bicycle pedal, only can make the wheel forward rotation, no matter and the flower-drum of the unidirectional output of unidirectional input is meant when stepping on forward or backwards bicycle pedal, all make wheel produce the rotation of relative direction, yet, because the flower-drum of these two kinds of kenels belongs to different structure designs respectively, therefore, single flower-drum also can't be suitable for two kinds of above-mentioned kenels simultaneously, and highlights the deficiency of existing flower-drum applicability.
In addition, though the design of flower-drum has been developed flower-drum one side has been designed to the unidirectional output of two-way input at present, the flower-drum opposite side is designed to the kenel of the unidirectional output of unidirectional input, make single flower-drum can be suitable for two kinds of above-mentioned kenels simultaneously, but, no matter each design how of described hub structure changes, when carrying out the conversion of unidirectional output of two-way input and the unidirectional output of unidirectional input, all must cycle frame be separated and be assembled in to described flower-drum, still highlight existing flower-drum applicability defect of insufficient by instrument.
The utility model content
The technical problems to be solved in the utility model provides a kind of hub structure, and it can not need the flower-drum by the unidirectional output of the two-way input of instrument conversion at any time and two kinds of kenels of the unidirectional output of unidirectional input, uses the applicability that improves described flower-drum.
For solving above technical matters, the utility model provides a kind of hub structure, comprising: a part; One shell, it is hubbed at described axle part, and described shell has a perforation, and described perforation one side is provided with a ratchet ring and is equipped with a plurality of location divisions; One ratchet sleeve, it radially is provided with a ring protuberance, has a tooth pick division in described ring protuberance one side, described tooth pick division is provided with a ratchet group, has a ratchet part in described ring protuberance opposite side, described ratchet part radial loop is provided with a draw-in groove, and described ratchet sleeve is hubbed at described axle part, and described ratchet group and described ratchet ring one way engagement; One steady ring, its outer ring surface has a plurality of male part, described steady ring inner ring surface have a plurality of in protuberances, described steady ring is sheathed on described ratchet sleeve, protuberance and described ratchet part meshed in each was described, each described male part is to each location division that should shell; A plurality of elastic elements, it is laid in described ratchet sleeve, and is resisted against between described ring protuberance and the described steady ring; One control loop, it has a ring and supports portion, described ring supports portion's inner ring surface and has a plurality of latches, described control loop is sheathed on described ratchet sleeve, described ring supports portion and is resisted against described steady ring, each described latch and the engagement of described ratchet part, and when the draw-in groove of each described latch and described ratchet part fastens mutually, each male part of described steady ring is positioned the location division of described shell, when the draw-in groove of each described latch and described ratchet part breaks away from mutually, each male part of described steady ring breaks away from the location division in described shell.
The beneficial effects of the utility model are: it does not need the flower-drum by the unidirectional output of the two-way input of instrument conversion at any time and two kinds of kenels of the unidirectional output of unidirectional input, uses the applicability that improves described flower-drum.
Description of drawings
Below in conjunction with drawings and Examples the utility model is described in further detail.
Fig. 1 is a three-dimensional exploded view of the present utility model.
Fig. 2 is a three-dimensional combination figure of the present utility model.
Fig. 3 is a three-dimensional combination figure of the present utility model, and expression deletion control loop, flywheel sheet, set collar, switching are first-class, show described steady ring male part and shell localization part from state.
Fig. 4 is part sectional view of the present utility model.
Fig. 5 is the 4th figure line segment 5-5 section-drawing.
Fig. 6 is a three-dimensional combination figure of the present utility model, and expression deletion control loop, flywheel sheet, set collar, switching are first-class, show the state that locate mutually described steady ring male part and shell location division.
Fig. 7 is part sectional view of the present utility model, shows the state that locate mutually described steady ring male part and shell location division.
Fig. 8 is the 7th figure line segment 8-8 section-drawing, shows that the latch of control loop fastens in the state of described ratchet sleeve draw-in groove.
Fig. 9 is a section-drawing of the present utility model, shows the state of the ratchet ring assembly of the ratchet group of described ratchet sleeve and shell.
Main element nomenclature among the figure:
Axle part 10 adapters 11
Shell 20 perforation 21
Location division 211 ratchet rings 22
Ratchet sleeve 30 ring protuberances 31
Groove 311 tooth pick divisions 32
Ratchet group 33 ratchet pawl 331
Latch spring 332 ratchet parts 34
Draw-in groove 341 protuberances 342
Recess 343 limited posts 344
Locking part 35
Steady ring 40 male part 41
Interior protuberance 42
Elastic element 50
Control loop 60 rings support portion 61
Latch 611
Flywheel sheet 71 set collars 72
Outer diameter D 1 outer diameter D 2
Outer diameter D 3 outer diameter D 4
The specific embodiment
To shown in Figure 5, the utility model embodiment provides a kind of linear transmission module as Fig. 1, and it mainly is made up of a part 10, a shell 20, a ratchet sleeve 30, a steady ring 40, six elastic elements 50 and a control loop 60, wherein:
Described axle part 10, its two ends are provided with adapter 11, use and cycle frame (figure does not show) assembling.
Described shell 20, it is hubbed at described axle part 11, and described shell 20 has a perforation 21, and described perforation 21 1 sides are provided with a ratchet ring 22, and are equipped with a plurality of location divisions 211 at described perforation 21 peritreme places, and form a depressed part between the every adjacent positioned portion 211.
Described ratchet sleeve 30, it radially is provided with a ring protuberance 31, and described ring protuberance one end face ring is provided with six grooves 311, has a tooth pick division 32 in described ring protuberance 31 1 sides, described tooth pick division 32 is provided with a ratchet group 33, and described ratchet group 33 is located on described tooth pick division 32 by six ratchet pawl 331 and encloses the latch spring 332 of being located at described six ratchet pawl, 331 outer circumferential sides and formed; Has a ratchet part 34 in described ring protuberance 31 opposite sides, described ratchet part 34 comprises draw-in groove 341, a plurality of protuberance 342 and the recess 343 between per two protuberances 342 that a radial loop is established, and each described protuberance 342 is provided with a limited post 344, and described limited post 344 also is placed through the draw-in groove 341 of described ratchet part 34; Extended axially a locking part 35 in ratchet part 34, the maximum outside diameter D1 of described locking part 35 is less than the maximum outside diameter D2 of described ratchet part 34; Described ratchet sleeve 30 is hubbed at described axle part 10, and described ratchet group 33 and described ratchet ring 22 one way engagement.
Described steady ring 40, its outer ring surface has a plurality of male part 41, described steady ring 40 inner ring surfaces have protuberance 42 in six, described steady ring 40 is sheathed on the ratchet part 34 of described ratchet sleeve 30, and can be along the longitudinal travel of described ratchet sleeve 30, protuberance 42 and described ratchet part 34 engagements in each is described, that is protuberance 42 correspondences are positioned at described recess 343 in described, and fasten mutually with described protuberance 342, described steady ring 40 is in the same way with described ratchet sleeve 30 to rotate, and each described male part 41 is to each location division 211 that should shell 20, makes described male part 41 can locate or break away from the location division 211 of described shell 20.
Six elastic elements 50, it is laid in described ratchet sleeve 30, and corresponding each recess 343 that is positioned at described ratchet part 34; Each elastic element 50 is to be resisted against between the groove 311 and described steady ring 40 of described ring protuberance 31, when making described interior protuberance 42 be positioned the location division 211 of described shell 20, accumulates an elastic force that recovers.
Described control loop 60, it has a ring and supports portion 61, described ring supports portion's 61 inner ring surfaces and has six latches 611, described control ring set 60 is located at the ratchet part 34 of described ratchet sleeve 30, and can be along the longitudinal travel of described ratchet sleeve 30, described ring supports portion 61 and is resisted against described steady ring 40, each described latch 611 and described ratchet part 34 engagements, that is described latch 611 correspondences are positioned at described recess 343, and fasten mutually with described protuberance 342, described control loop 60 is in the same way with described ratchet sleeve 30 to rotate, and when the draw-in groove 341 of each described latch 611 with described ratchet part 34 fastens mutually, each male part 41 of described steady ring 40 is positioned the location division 211 of described shell 20, when the draw-in groove 341 of each described latch 611 with described ratchet part 34 breaks away from mutually, each male part 41 of described steady ring 40 breaks away from the location division 211 in described shell 20.
Establish a set collar 72 in the locking part 35 sheathed flywheel sheets 71 of engagement and the spiral shell of described ratchet sleeve 30 at last, make described steady ring 40 can not break away from described ratchet sleeve 30, and the maximum outside diameter D3 of described control loop 60 is the maximum outside diameters greater than described flywheel sheet D4 with described control loop 60.
The above is the structure and the configuration explanation thereof of each primary member of the utility model embodiment.
As for operating mode and the effect thereof of the utility model embodiment, extremely shown in Figure 8 as Fig. 4.
When the utility model carries out the start of the unidirectional output kenel of unidirectional input:
As shown in Figure 4, at first described control loop 60 is pushed towards described shell 20 directions, make of the axial generation displacement of described control loop 60 along described ratchet sleeve 30, simultaneously, described control loop 60 supports the described steady ring 40 of portion's 61 pushing and pressing by its ring, make described steady ring 40 same axial generation displacements along described ratchet sleeve 30, when the latch 611 of described control loop 60 is moved to draw-in groove 341 that should ratchet sleeve 30, consult Fig. 6, Fig. 7,611 of the latches of described control loop 60 no longer fasten mutually with the protuberance 342 of described ratchet carriage 30, and each male part 41 of described steady ring 40 is positioned the location division 211 of described shell 20, and then, consult Fig. 7, Fig. 8, rotate described control loop 60 1 angles, make the latch 611 of described control loop 60 be positioned at the draw-in groove 341 of described ratchet sleeve 30, and fasten mutually, at this moment, because being the location divisions 211 with described shell 20, the male part 41 of described steady ring 40 fastens mutually, and the interior protuberance 42 of described steady ring 40 is that protuberance 342 with described ratchet sleeve 30 fastens mutually, therefore, no matter described shell 20 forwards or backwards rotation, described ratchet sleeve 30 all can be along with rotation, and the flywheel sheet 71 that is engaged in described gear sleeve 30 rotates and rotates along with described shell 20 equally, uses the kenel of reaching the unidirectional output of the unidirectional input of the utility model flower-drum.
When the utility model carries out the start of the unidirectional output kenel of two-way input:
As Fig. 6, shown in Figure 7, at first rotate described control loop 60 1 angles, the latch 611 of described control loop 60 and the draw-in groove 341 of described ratchet sleeve 30 are broken away from mutually, allow the recess 343 that 611 pairs of the latches of described control loop 60 should ratchet sleeve 30 simultaneously, at this moment, consult Fig. 3, Fig. 4, elastic restoring force by elastic element 50, make described steady ring 40 and described control loop 60 produce displacement with direction away from described shell 20, till described control loop 60 is resisted against described flywheel sheet 71,41 location divisions 211 that break away from described shells 20 of the male part of described steady ring 40 of while, therefore, when described shell 20 forwards or backwards rotation, described ratchet sleeve 30 only can produce unidirectional same moving with described shell 20 by its ratchet group 33, uses the kenel of reaching the unidirectional output of the two-way input of the utility model flower-drum.
In sum, via the utility model structure design, allow the user not need instrument can directly control described control loop 60, make the male part 41 of described steady ring 40 and location division 211 location or the disengaging mutually mutually of described shell 20, allow two kinds of kenels of the unidirectional output of unidirectional output of the two-way input of flower-drum of the present utility model conversion at any time and unidirectional input, use and reach the purpose that improves described flower-drum applicability.
As shown in Figure 8, because the utility model is provided with a limited post 344 in each protuberance 342 of described ratchet part 34, and described limited post 344 is placed through the draw-in groove 341 of described ratchet part 34, therefore, when the latch 611 of described control loop 60 is moved to draw-in groove 341 that should ratchet sleeve 30 and rotates, described limited post 344 is limited the latch 611 of described control loop 60 in the angle that described draw-in groove 341 rotates, and promotes the accuracy that described latch 611 and described draw-in groove 341 fasten mutually.
As shown in Figure 4, the utility model is designed to maximum outside diameter D4 greater than described flywheel sheet 71 with the maximum outside diameter D3 of described control loop 60, and because described flywheel sheet 71 mainly is and cycle chain (figure does not show) makes up, therefore, the utility model is when controlling described control loop 60, can not touch described flywheel sheet 71 and chain thereof, and be kept clean.
As shown in Figure 9, when the utility model flower-drum is the kenel of the unidirectional output of two-way input, it mainly is to arrange in pairs or groups with the ratchet ring 22 of described shell 20 by the ratchet group 33 of described ratchet sleeve 30 to form, just when shell 20 rotations, ratchet pawl 331 rotation that centnifugal force can drive described ratchet group 33 open outward with described shell 20 in ratchet ring 22 eat and close, can drive described flower-drum and produce wheel and change; And described ratchet pawl 331 can contract inwardly when shell 20 counter-rotatings, can not produce to eat and close with described ratchet ring 22, shell 20 meetings this moment are dallied voluntarily and can not driven described ratchet ring 22 rotations, use the kenel of reaching the unidirectional output of the two-way input of flower-drum, because this kenel belongs to known technology, so no longer given unnecessary details.