CN207173882U - A kind of bar driving bicycle with clutch speed-changing structure - Google Patents
A kind of bar driving bicycle with clutch speed-changing structure Download PDFInfo
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- CN207173882U CN207173882U CN201721223578.9U CN201721223578U CN207173882U CN 207173882 U CN207173882 U CN 207173882U CN 201721223578 U CN201721223578 U CN 201721223578U CN 207173882 U CN207173882 U CN 207173882U
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Abstract
The utility model belongs to bicycle shift technical equipment field, more particularly, to a kind of bar driving bicycle with clutch speed-changing structure, including pedal, the pedal is connected with the first tumbler gear by bent axle, first tumbler gear is engaged with power transmission shaft by the second tumbler gear, the forward and backward both ends of power transmission shaft are connected to clutch-drive, and the power transmission shaft can move forward and backward under the drive of clutch-drive.Using speed change system of the present utility model, using clutch speed-changing mode, it can need to set two or more speed change ratchets according to different, pass through different gearratios, it can be selected when abrupt slope or bad road conditions laborsaving (big speed ratio), it can select at a high speed (close steps), the experience of riding of raising bar driving bicycle, be rectified name for bar driving bicycle when level land or outstanding road conditions.
Description
Technical field
The utility model belongs to bicycle shift technical equipment field, more particularly, to a kind of with clutch speed-changing structure
Bar driving bicycle.
Background technology
Current bicycle has the several ways such as chain drive and bar transmission, and wherein chain drive has been quite ripe
Technology, it derives the multi-speed bicycle of a variety of speed change forms.Multi-speed bicycle, by property, passes through with good and adjusts driving
Take turns with the gearratio of flywheel to change gearratio (gearratio=input speed/output speed specifically described herein), and then change speed
Degree and pedal moment, and then different landform and speed are adapted to, ensure laborsaving in different terrain.Some it is cross-country etc. need through
Normal switch speed, changes the landform of torque output, and chain easily becomes loose or dislocation, it is necessary to frequently repair in use for some time
Reason is changed, and if if bar driving bicycle, then bothered without above-mentioned chain-loose.And bar transmission because its moment of torsion it is big,
Not easily broken, transmission efficiency, and be widely used in the fields such as automobile, bicycle art using the car body of bar transmission structure compared with
Chain conveyer bicycle is firm, and the life-span will be grown a lot.But current bar driving bicycle is all single transmission mode, is not had
Speed change form.And some jejune bar driving bicycle such as first generation of design are rubbed and visit bicycle, it can not play bar transmission completely
Bicycle advantage, it is relative poor by property on the contrary because control cost causes gearratio small, influence the experience of riding of user.
Utility model content
Do not possess speed changing function to make up existing bar driving bicycle, gearratio is single, causes body of riding by property difference
The defects of testing difference, the utility model proposes a kind of bar driving bicycle with clutch speed-changing structure.
The technical scheme for realizing above-mentioned beneficial effect is a kind of bar driving bicycle with clutch speed-changing structure, including
Pedal, the pedal are connected with the first tumbler gear by bent axle, and first tumbler gear is connected by the second tumbler gear
There is power transmission shaft, the forward and backward both ends of power transmission shaft are connected to clutch-drive, drive of the power transmission shaft in clutch-drive
Under can move forward and backward；
The rear end of the power transmission shaft is provided with gear area, and the gear area is engaged with least two speed change ratchets；The speed change
Ratchet, which includes the interior ratchet wheel engaged with the gear area and the outer ratchet being set on the outside of the interior ratchet wheel, the interior ratchet wheel, to be included
External tooth cover and internal tooth casing, the external tooth cover inner side are provided with ring gear, and the internal tooth casing is corresponding with the ring gear by clutch pawl
Connect, be connected with expansion link on the body of rod of the clutch pawl, hole slot at one be provided with the internal tooth casing, the expansion link passes through bullet
Spring is installed in the hole slot, and when the end of the expansion link passes through the hole slot, the clutch pawl leaves ring gear, when
When the expansion link end is jacked up, the clutch pawl withstands the ring gear, and the clutch pawl is described by withstanding or decontroling
Ring gear realizes the clutch transmission of the internal tooth casing and the power transmission shaft；
The gear area is corresponding to be correspondingly provided with projection, the raised number in front of the hole slot position of each speed change ratchet
It is identical with the number of the speed change ratchet, and set preceding raised and hole slot distance to be less than and posterior raised and hole slot is set
Distance；
The outer ratchet is connected with rear drive gear axle, after the rear drive gear axle is engaged to by the 3rd tumbler gear
In the rotating shaft of wheel；
The outer wheel footpath of the outer ratchet becomes larger from the front to the back.
Preferably, the clutch-drive is hydraulic stem, and the hydraulic stem is communicated with hydraulic tube, the hydraulic tube and fixation
Gearshift knob connection on vehicle frame.
Preferably, the outer ratchet is connected with outer bearing, and the outer bearing is connected on vehicle frame by connector.
Preferably, the external tooth cover is connected with inner bearing, and the inner bearing is connected on vehicle frame by the connector.
Preferably, the clutch component includes being squeezed in the stage clip on the power transmission shaft top and is connected to power transmission shaft top
Bracing wire, the bracing wire are connected with the gearshift knob on vehicle frame.
Preferably, the connector includes the corresponding foundation ring for being installed to the connecting plate in gear area and being connected with the connecting plate, institute
State outer bearing and the inner bearing is connected respectively on the foundation ring.
Preferably, the front end of the power transmission shaft is provided with front gear area, and the second tumbler gear is set in the front gear area simultaneously
Engaged with the front gear area, the power transmission shaft can relatively described second tumbler gear move axially.
Using speed change system of the present utility model, using clutch speed-changing mode, can according to it is different need to set two or
Multiple speed change ratchets, by different gearratios, laborsaving (big speed ratio) can be selected when abrupt slope or bad road conditions,
It can be selected when level land or outstanding road conditions at a high speed (close steps), the experience of riding of raising bar driving bicycle, is bar
Driving bicycle is rectified name.
Brief description of the drawings
Fig. 1 is a kind of structural representation of embodiment of speed changing structure of the present utility model；
Fig. 2 is a kind of structural representation of embodiment of the utility model speed change ratchet structure；
Fig. 3 is a kind of structural representation of embodiment of the annexation of speed change ratchet of the present utility model and connector
In figure：1：Gearbox；11：First tumbler gear；12：Second tumbler gear；2：Power transmission shaft；21：Gear area；22：
Front gear area；3：Speed change ratchet；Ratchet wheel in 31；311：External tooth cover；312：Internal tooth casing；313：Ring gear；314：Clutch pawl；315：
Expansion link；316：Hole slot；317：Spring；32:Outer ratchet；4:It is raised；5：Clutch-drive；6：Connector；61：Connecting plate；62：Bottom
Circle；7:Rear drive gear axle；8:3rd tumbler gear；91：Outer bearing；92：Inner bearing.
Embodiment
The utility model is described further below in conjunction with the accompanying drawings.
The technical solution of the utility model is clearly and completely described below in conjunction with accompanying drawing, it is clear that described
Embodiment is the utility model part of the embodiment, rather than whole embodiments.Based on the embodiment in the utility model, sheet
The every other embodiment that field those of ordinary skill is obtained under the premise of creative work is not made, belongs to this practicality
Novel protected scope.
, it is necessary to explanation in description of the present utility model, term " " center ", " on ", " under ", it is "left", "right", " perpendicular
Directly ", the orientation of the instruction such as " level ", " interior ", " outer " or position relationship are based on orientation shown in the drawings or position relationship, are only
Described for the ease of description the utility model and simplifying, rather than instruction or imply signified device or element must have it is specific
Orientation, with specific azimuth configuration and operation, therefore it is not intended that to limitation of the present utility model.In addition, term " the
One ", " second ", " the 3rd " are only used for describing purpose, and it is not intended that instruction or hint relative importance.
, it is necessary to which explanation, unless otherwise clearly defined and limited, term " are pacified in description of the present utility model
Dress ", " connected ", " connection " should be interpreted broadly, for example, it may be fixedly connected or be detachably connected, or integratedly
Connection；Can be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected by intermediary,
It can be the connection of two element internals.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
Concrete meaning of the language in the utility model.
With reference to Fig. 1, a kind of embodiment of the present utility model.A kind of bar driving bicycle with clutch speed-changing structure,
Including pedal, the pedal is connected with the first tumbler gear 11 by bent axle, and first tumbler gear 11 passes through the second commutation
Gear 12 is connected with power transmission shaft 2, and the forward and backward both ends of power transmission shaft 2 are connected to clutch-drive 5, and the power transmission shaft 2 drives in clutch
It can be moved forward and backward under the drive of dynamic device 5.
The rear end of power transmission shaft 2 is provided with gear area 21, and the gear area 21 is engaged with least two speed change ratchets 3；Wherein, speed change
Ratchet 3 includes the interior ratchet wheel 31 engaged with gear area 21 and is set in the outer ratchet 32 in the interior outside of ratchet wheel 31, and interior ratchet wheel 31 includes
External tooth cover 311 and internal tooth casing 312, the inner side of external tooth cover 311 are provided with ring gear 313, and internal tooth casing 312 passes through clutch pawl 314 and internal tooth
Circle 313 is corresponding to be connected, and is connected with expansion link 315 on the body of rod of clutch pawl 314, hole slot at one is provided with the internal tooth casing 312
316, expansion link 315 is installed in hole slot 316 by spring 317, and when the end of expansion link 315 passes through hole slot 316, clutch
Pawl 314 leaves ring gear 313, and when the end of expansion link 315 is jacked up, the clutch pawl 314 withstands the ring gear 313, from
Close the clutch transmission that pawl 314 realizes internal tooth casing 312 and power transmission shaft 2 by withstanding or decontroling ring gear 313；
Gear area 21 is corresponding to be correspondingly provided with projection 4, the number of projection 4 in front of the position of hole slot 316 of each speed change ratchet 3
It is identical with the number of the speed change ratchet 3, and the distance of setting preceding raised 4 and hole slot 316 is less than setting posterior raised 4
With the distance of hole slot 316；
Outer ratchet 32 is connected with rear drive gear axle 7, after the rear drive gear axle 7 is engaged to by the 3rd tumbler gear 8
In the rotating shaft of wheel.When outer ratchet and rear drive gear axle 7 are engaged, it can make as shown in Fig. 1 embodiments
One rooted tooth wheel shaft has the mode in step-like gear area, and each gear area external diameter difference is nibbled with corresponding outer ratchet 32 respectively
Close and form different gearratios；Turn that the respective gear wheels noose one of various outer diameter can also be used to be engaged with the 3rd tumbler gear
The gear shaft that axle is formed, the gearratio that to be engaged composition different of outer ratchet 32 in different gears with correspondence wheel footpath.Using
The mode of step-like gear shaft is advantageous in that integrative-structure, high mechanical strength；Using the side of various outer diameter gear cooperating teeth wheel shaft
Formula is advantageous in that, convenient installation, reduces deadweight, is convenient for changing gear, reduce maintenance cost.
In the present embodiment, because vehicle frame, handlebar etc. are all first to have mature technology, here is omitted, this paper emphasis solutions
Release explanation speed changing structure.It is of the present utility model to focus on power transmission shaft 2 being arranged to the form that front and rear move back and forth, pass through
Power transmission shaft 2 moves forward and backward and then realizes the output of different speed change ratchets 3, and then realizes speed change.
In the present embodiment, the front end of power transmission shaft 2 is provided with front gear area 22, and rear end is provided with gear area 21, front gear area 22
Connected by gear wheel reversing with the rotating shaft of bent axle, specifically, the front gear area 22 of power transmission shaft 2 passes through the first tumbler gear 11 and
The mode of two tumbler gears 12 engagement drives power transmission shaft 2 to rotate, can not between the first tumbler gear 11 and the second tumbler gear 12
Moved forward and backward, it is therefore preferred that between the tumbler gear 12 of front gear area 22 and second by suit by way of realize
In the case where the second tumbler gear is motionless, power transmission shaft 2 can move forward and backward, and internal tooth is provided with the second tumbler gear 12, with nipper
Wheel area 22 is engaged transmission, ensures to transmit power to the second tumbler gear on power transmission shaft 2, and power transmission shaft 2 can be with
Freely moved back and forth.
Together with the rear end gear area 21 of power transmission shaft 2 of the present utility model is engaged to speed change ratchet 3 always, but due to
When operation, expansion link 315 is limited in hole slot 316 by spring 317, and clutch pawl 314 leaves ring gear 313, interior
Gear ring 313 does not turn, and then external tooth cover 311 and outer ratchet 32 do not rotate.When speed change is needed, power transmission shaft 2 is moved rearwards,
Drive projection 4 to be moved rearwards and jack up expansion link 315, expansion link 315 and then clutch pawl 314 is expressed on ring gear 313, internal tooth
Circle 313, with the synchronous axial system of power transmission shaft 2, and then drives the outer synchronous axial system of ratchet 32 under the drive of clutch pawl 314, and power is conducted
Onto rear drive gear axle 7, driving trailing wheel advances.
The utility model gradually widens from front to back because the distance of each raised 4 and hole slot 316 is different.Institute
The outer wheel footpath for stating outer ratchet 32 also becomes larger from the front to the back, causes gearratio to taper into from front to back.In speed-change process,
First projection 4 is introduced into the hole slot 316 of first speed change ratchet 3, the expansion link 315 in hole slot 316 is jacked up, expansion link
315 jack up clutch pawl 314, it is withstood on ring gear 313, realize that ring gear 313 is synchronous with power transmission shaft 2, and then drive
First speed change ratchet 3 drives rear drive gear axle 7 to be driven.When need reduce gearratio when, continue drive power transmission shaft 2 to
After move, second projection 4 enters in the hole slot 316 of second speed change ratchet 3, the transmission of similar first speed change ratchet 3
Journey, realize that second speed change ratchet 3 drives the rotation of rear drive gear axle 7.By that analogy, the gradually motion backward of power transmission shaft 2, according to
The secondary projection 4 for driving rear jacks up expansion link 315, realizes the ascending change of gearratio.In speed-change process, with biography
Moving axis 2 is gradually moved rearwards, and causes gearratio to be gradually reduced, and the rotating speed of rear drive gear axle 7 has exceeded preceding several speed change ratchets
3, and due to the ratchet structure of speed change ratchet 3, its own only can be empty after the rotating speed of rear drive gear axle 7 exceedes its own rotating speed
Turn, rear drive gear axle 7 will not be had a negative impact.
Be enclosed on the inside of each internal tooth casing 312 in the gear area of power transmission shaft 2 of the present utility model, internal tooth casing 312 always with
Power transmission shaft 2 is synchronized with the movement, and a stable track is formed between projection 4 and hole slot 316, improves traveling comfort, speed change mistake
Cheng Buhui produces the vibration in chain speed-change process.
In the utility model, why clutch pawl 314 is jacked up using expansion link 315 and arrived without the directly top of expansion link 315
Be on ring gear 313 in order to improve the structural strength of clutch pawl 314 and ring gear 313 because expansion link 315 is bascule,
The bonding strength of itself and internal tooth casing is much smaller than clutch pawl 314, by the way of expansion link 315 and clutch pawl 314 coordinate, improves
Its Mechanical Structure Strength, and then strengthen the life-span.
Power transmission shaft 2 of the present utility model in the connection procedure with vehicle frame by the way of bearing fit rubber washer, profit
Rotated and fixed with bearing, and can moved forward and backward using rubber washer in guarantee power transmission shaft 2 in Bearing inner.
The clutch-drive 5 is hydraulic stem, and the hydraulic stem is communicated with hydraulic tube, and the hydraulic tube is with being fixed on vehicle frame
On gearshift knob connection.In the present embodiment, in the top mounting plane bearing of hydraulic stem, hydraulic stem is withstood on plane bearing,
Power transmission shaft 2 is withstood by plane bearing, the rotation of power transmission shaft 2 is offset using plane bearing.Because hydraulic thrust is larger, using liquid
Pressure mode ensures the steady of speed change.Hydraulic tube is coupled on gearshift knob, gearshift knob then built-in hydraulic oil container, convenient to hydraulic pressure
The hydraulic cylinder injection hydraulic oil of bar.Because power transmission shaft 2 moves forward and backward, scope is smaller, can be expired completely using small-sized hydraulic system
Foot, which uses, to be needed, and meets the needs of speed changing force-saving.
Reference picture 3, in the utility model, a kind of connection embodiment of speed change ratchet and power transmission shaft, in the present embodiment, institute
State outer ratchet 32 and be connected with outer bearing 91, the outer bearing is connected on outside vehicle frame by connector 6.In the technical program,
The isolating construction of outer ratchet 32 and internal tooth casing 312 is realized by the way of bearing, internal tooth casing 312 will not external ratchet in idle running
32 have an impact.Reference picture 3, in the utility model, a kind of connection embodiment of speed change ratchet and power transmission shaft, the present embodiment
In, the external tooth cover 311 is connected with inner bearing 92, and the inner bearing is connected on outside vehicle frame by the connector 6.This skill
In art scheme, realize that external tooth cover 311 and the rotation of internal tooth casing 312 separate using inner bearing pattern, internal tooth casing 312 is in idle cycle
In externally ratchet 32 will not have an impact.
In above-mentioned Fig. 3 embodiment, vehicle frame fixes outer ratchet 32 and external tooth respectively using outer bearing 91 and inner bearing 92
Set 311, makes it be fixed on vehicle frame, will not be movable with power transmission shaft 2, ensures speed change when moving forward and backward of power transmission shaft 2
Ratchet will not rock, and the clamping position of projection 4 is accurate.
As can be seen from Figure 1 always in nibbling and relation between multiple speed change ratchets 3 and rear drive gear axle 7, it is always
It is ratchet driving structure with reference to Fig. 2, between external tooth cover 311 and outer ratchet 32, when the rotating speed of external tooth cover 311 for synchronous axial system state
When high, outer ratchet 32 can be driven to be rotated, when the outer rotating speed of ratchet 32 is high, then can not drive external tooth cover 311
Rotate.Only clutch pawl 314 is output power to during rear drive gear axle 7 from power transmission shaft 2 simultaneously in working condition
External tooth cover 311 rotates, and speed change ratchet corresponding to the external tooth cover 311 is that active rotation exports power, other speed change ratchets
To be driven, power is not exported.
The clutch component includes the stage clip for being squeezed in the top of power transmission shaft 2 and the bracing wire for being connected to the top of power transmission shaft 2,
The bracing wire is connected with the gearshift knob on vehicle frame.In the technical program, the structure of spring 317 is coordinated using bracing wire, cost is relatively low,
Opposing hydraulic mechanism is a little laborious, is adapted to during stopping bicycle and being moved ahead by inertia, the situation that power transmission shaft 2 does not turn
Lower carry out speed change.
Above-mentioned power transmission shaft 2 can be arranged in gearbox 1 by bearing, can also be hung up by clutch-drive 5,
Because power transmission shaft 2 itself is removed only by axial force outside gravity, therefore can also realize stabilization even if direct suspension installation.
The connector 6 includes the corresponding foundation ring 62 for being installed to the connecting plate 61 in gear area and being connected with the connecting plate, described
Outer bearing and the inner bearing are connected respectively on foundation ring.In the technical program, the connecting plate of connector and foundation ring be not with transmission
Axle 2 rotates, in the presence of bearing, outer ratchet 32 and external tooth cover 311 all with the relatively independent connection of power transmission shaft, with power transmission shaft 2
For separate transmission structure, when outer ratchet rotating speed 32 exceedes 2 rotating speed of power transmission shaft, power transmission shaft 2 will not be impacted.Pass through
This connected mode, fixation is relatively easy, while easy disassembly.
The outer wheel footpath of the outer ratchet 32 becomes larger from the front to the back.In the present embodiment, outer ratchet 32 becomes larger, then
Then wheel footpath is less and less in order to think cooperation with it for gear shaft, and small one and large one change realizes the change of gearratio, realizes
Switching from low speed to high speed.
Using speed change system of the present utility model, using clutch speed-changing mode, can according to it is different need to set two or
Multiple speed change ratchets, by different gearratios, laborsaving (big speed ratio) can be selected when abrupt slope or bad road conditions,
It can be selected when level land or outstanding road conditions at a high speed (close steps), the experience of riding of raising bar driving bicycle, is bar
Driving bicycle is rectified name.
It is described above, it is preferable case study on implementation of the present utility model, not the utility model is imposed any restrictions, every
Any simple modification, change and the equivalent structure change made according to the utility model technical spirit to above example, still
Belong in the protection domain of technical solutions of the utility model.
Claims (7)
1. a kind of bar driving bicycle with clutch speed-changing structure, it is characterised in that including pedal, the pedal passes through bent axle
The first tumbler gear (11) is connected with, first tumbler gear is connected with power transmission shaft (2), institute by the second tumbler gear (12)
State the forward and backward both ends of power transmission shaft and be connected to clutch-drive (5), the power transmission shaft (2) is under the drive of clutch-drive (5)
It can move forward and backward vertically；
The rear end of the power transmission shaft is provided with gear area (21), and the gear area is engaged with least two speed change ratchets (3)；The change
Fast ratchet (3) includes the interior ratchet wheel (31) engaged with the gear area and the outer ratchet being set on the outside of the interior ratchet wheel (31)
(32), the interior ratchet wheel (31) includes external tooth cover (311) and internal tooth casing (312), and ring gear is provided with the inside of the external tooth cover (311)
(313), the internal tooth casing (312) passes through clutch pawl (314) connection corresponding with the ring gear (313), the clutch pawl (314)
The body of rod on be connected with expansion link (315), hole slot at one (316), the expansion link (315) are provided with the internal tooth casing (312)
Installed by spring (317) in the hole slot (316), and when the end of the expansion link (315) passes through the hole slot (316)
When, the clutch pawl (314) leaves ring gear (313), when the expansion link (315) end is jacked up, the clutch pawl
(314) ring gear (313) is withstood, the clutch pawl (314) is by withstanding or decontroling described in the ring gear (313) realization
The clutch transmission of internal tooth casing (312) and the power transmission shaft (2)；
The gear area (21) is corresponding to be correspondingly provided with raised (4), institute in front of hole slot (316) position of each speed change ratchet (3)
State that the number of raised (4) is identical with the number of the speed change ratchet (3), and set the distance of preceding projection (4) and hole slot small
In the distance for setting posterior raised (4) and hole slot (316)；
The outer ratchet (32) is engaged with rear drive gear axle (7), and the rear drive gear axle (7) passes through the 3rd tumbler gear
(8) it is engaged in the rotating shaft of trailing wheel；
The outer wheel footpath of the outer ratchet (32) becomes larger from the front to the back.
2. the bar driving bicycle according to claim 1 with clutch speed-changing structure, it is characterised in that the clutch is driven
Dynamic device (5) is hydraulic stem, and the hydraulic stem is communicated with hydraulic tube, and the hydraulic tube and the gearshift knob being fixed on vehicle frame connect
It is logical.
3. the bar driving bicycle according to claim 2 with clutch speed-changing structure, it is characterised in that the outer ratchet
(32) outer bearing (91) is connected with, the outer bearing is connected on vehicle frame by connector (6).
4. the bar driving bicycle according to claim 3 with clutch speed-changing structure, it is characterised in that the external tooth cover
(311) inner bearing (92) is connected with, the inner bearing is connected on vehicle frame by the connector (6).
5. the bar driving bicycle according to claim 1 with clutch speed-changing structure, it is characterised in that the clutch group
Part includes the stage clip for being squeezed in the power transmission shaft (2) top and the bracing wire that is connected to power transmission shaft top, the bracing wire with vehicle frame
Gearshift knob connection.
6. the bar driving bicycle according to claim 4 with clutch speed-changing structure, it is characterised in that the connector
(6) include the corresponding connecting plate (61) being installed on vehicle frame and the foundation ring (62) being connected with the connecting plate, the outer bearing (91) and
The inner bearing (92) is connected respectively on the foundation ring.
7. the bar driving bicycle according to claim 1 with clutch speed-changing structure, it is characterised in that the power transmission shaft
(2) front end is provided with front gear area (22), second tumbler gear (12) be set in the front gear area (22) and with it is described
Front gear area (22) engage, the power transmission shaft (2) can relatively described second tumbler gear (12) move axially.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721223578.9U CN207173882U (en) | 2017-09-22 | 2017-09-22 | A kind of bar driving bicycle with clutch speed-changing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721223578.9U CN207173882U (en) | 2017-09-22 | 2017-09-22 | A kind of bar driving bicycle with clutch speed-changing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207173882U true CN207173882U (en) | 2018-04-03 |
Family
ID=61749095
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721223578.9U Expired - Fee Related CN207173882U (en) | 2017-09-22 | 2017-09-22 | A kind of bar driving bicycle with clutch speed-changing structure |
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| Country | Link |
|---|---|
| CN (1) | CN207173882U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107529497A (en) * | 2017-09-22 | 2018-01-02 | 梁子辰 | A kind of bar driving bicycle with clutch speed-changing structure |
-
2017
- 2017-09-22 CN CN201721223578.9U patent/CN207173882U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107529497A (en) * | 2017-09-22 | 2018-01-02 | 梁子辰 | A kind of bar driving bicycle with clutch speed-changing structure |
| CN107529497B (en) * | 2017-09-22 | 2024-04-09 | 梁子辰 | Rod-driven bicycle with clutch speed-changing structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180403 Termination date: 20200922 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |