CN203064144U - Hand-paddle type exercise bicycle - Google Patents
Hand-paddle type exercise bicycle Download PDFInfo
- Publication number
- CN203064144U CN203064144U CN 201220628767 CN201220628767U CN203064144U CN 203064144 U CN203064144 U CN 203064144U CN 201220628767 CN201220628767 CN 201220628767 CN 201220628767 U CN201220628767 U CN 201220628767U CN 203064144 U CN203064144 U CN 203064144U
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- flywheel
- chain
- sprocket wheel
- wheel
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Abstract
A hand-paddle type exercise bicycle comprises a bicycle frame, a seat, a front wheel, a rear wheel, a steering device and a driving device. The driving device comprises paddle rods, a paddle rod rotary shaft, a semicircular gear supporting rod, a rear axle gear, gears, chains, chain wheels and flywheels, wherein the gears comprise a semi-gear, a reversing gear, a front gear and a rear gear, the chains comprise a chain A and a chain B, the chain wheels comprise a front chain wheel and a rear chain wheel, and the flywheels comprise a flywheel A and a flywheel B. The front chain wheel, the front gear, the reversing gear, the rear gear and the rear chain wheel are arranged below the semi-gear. The flywheel A and flywheel B which in the same direction are arranged on the rear axle gear, and the flywheel A and the flywheel B are respectively connected with the front chain wheel and the rear chain wheel through the chain A and the chain B. The hand-paddle type exercise bicycle has the advantages that a rider can exercise arm muscles. The rider swings the paddle rods forward and backward with two hands, the paddle rods can achieve the effect of driving the bicycle to move forward during the process that the paddle rods are swung forward or backward, and therefore the running speed of the bicycle is accelerated.
Description
Technical field
The utility model relates to a kind of bicycle, and a kind of hand is drawn the formula body-building bicycle more precisely.
Background technology
Along with progress of science and technology, growth in the living standard, rhythm of life is also significantly accelerated, and working clans have often ignored the exercise of health, work before computer for a long time in addition, and health problem is also put on the life and work schedule day by day.Part office staff selects bike to work in order to take exercises.
Being seen bicycle adopts both hands control to turn to more, and the mode of pedal drives trailing wheel and travels, and can play the effect of tempering lower limb, but the muscles of the arm can not get good exercise, and the action of health is single by bike the time.Also realize bicycle driven relevant for stepping on by hand push, pin etc. at present, but when driving relevant transmission device, transmission device has the situation of idle running, this can waste rider's muscle power, simultaneously also can be influential to moving velocity.For example the patent No. is ZL200720146740.1(China) patent shown in the multifunctional leisure bicycle, as Fig. 1, at its pedal ascent stage, gear is in idling conditions, can not drive bicycle walking.The patent No. is ZL200510111736.7(China) patent shown in pedal-type bicycle and type of drive thereof, as Fig. 2, be connected with spring at the chain other end, stepping on pedal, in the time of by the chain drive flywheel, also extension spring is equivalent to like this in to the flywheel acting, also to the spring acting, wasted muscle power.In addition, when spring shrank, pedal lifted, and chain does not drive flywheel.The patent No. is ZL200920271242.9(China) patent shown in foot-operated hand push draw rapid bodybuilding bicycle and three-wheel vehicle,, all can drive bicycle and advance, still with hand push or when drawing rack as Fig. 3, the used gear of this utility model is more, increases manufacturing cost.
The utility model content
The purpose of this utility model is to overcome above-mentioned weak point, provides a kind of hand to draw the formula body-building bicycle, when tempering rider's arm muscles, has also accelerated the moving velocity of bicycle.
The utility model is for achieving the above object, by the following technical solutions: a kind of hand is drawn the formula body-building bicycle, it comprises vehicle frame, seat, front-wheel, trailing wheel, steering hardware and actuating device, the front end of described vehicle frame is provided with steering hardware and front-wheel, the rear end is provided with trailing wheel, vehicle frame is provided with seat, and the lower end of seat is provided with actuating device; Turning to that described steering hardware comprises front-wheel car fork and is fixed on that the front-wheel car sticks is foot-operated, and the relative vehicle frame of steering hardware is free to rotate; Described actuating device comprises draws bar, stroke bar rotating shaft, semi-circle gear pole, hind axle, gear, chain, sprocket wheel and flywheel, wherein, described gear comprises semi-circle gear, reversing gear, front gear and backgear, chain comprises chain A and chain B, sprocket wheel and back sprocket wheel before sprocket wheel comprises, flywheel comprises flywheel A and flywheel B; Described stroke of bar is connected with a stroke bar rotating shaft, draws a bar rotating shaft and rotates with respect to vehicle frame; Described semi-circle gear is being drawn in the bar rotating shaft by the semi-circle gear strut fixation; Be provided with preceding sprocket wheel, front gear, reversing gear, backgear and back sprocket wheel below the described semi-circle gear, wherein, with the semi-circle gear external toothing reversing gear and backgear are arranged, reversing gear external toothing one front gear, front gear and backgear are in parallel with preceding sprocket wheel and back sprocket wheel respectively; Two flywheel A and flywheel B in the same way are housed on the described hind axle, and flywheel A is connected with the back sprocket wheel with preceding sprocket wheel with chain B by chain A respectively with flywheel B.
Its principle of work is: both hands pull back when drawing bar, driving semi-circle gear by the rotation of drawing the bar rotating shaft clockwise rotates, this moment, backgear rotated counterclockwise, driving the back sprocket wheel in parallel with it rotates counterclockwise, propulsive effort on the sprocket wheel drives flywheel B by chain B and rotates counterclockwise, thereby the trailing wheel that drives bicycle rolls forward; Meanwhile reversing gear rotates counterclockwise, the drive front gear clockwise rotates, the preceding sprocket wheel in parallel with front gear also clockwise rotates, and power drives the idle running of flywheel A cw by the transmission of chain A, and the flywheel A of idle running can not interfere with the trailing wheel that conter clockwise rotates forward.
In like manner, pushing away forward when drawing bar, semi-circle gear rotates counterclockwise, driving backgear and reversing gear clockwise rotates, the reversing gear that clockwise rotates drives front gear and rotates counterclockwise, the preceding sprocket wheel in parallel with front gear also rotates counterclockwise, and propulsive effort drives flywheel A by chain A and rotates counterclockwise, and rotates forward thereby drive the trailing wheel conter clockwise; The backgear that clockwise rotates simultaneously drives the back sprocket wheel and clockwise rotates, and power drives flywheel B by chain B and clockwise rotates, and not clockwise rotating of flywheel can interfere with the trailing wheel that just rotates forward at conter clockwise.
When the rider not to draw bar before and after applying oscillatory forces and allow bicycle voluntarily to overtake the time because the effect of flywheel A and flywheel B, hind axle can not given chain A and chain B power, can guarantee that bicycle is smoothly to overtake.
A kind of hand is drawn the formula body-building bicycle, and it comprises vehicle frame, seat, front-wheel, trailing wheel, steering hardware and actuating device, and the front end of described vehicle frame is provided with steering hardware and front-wheel, and the rear end is provided with trailing wheel, and vehicle frame is provided with seat, and the lower end of seat is provided with actuating device; Turning to that described steering hardware comprises front-wheel car fork and is fixed on that the front-wheel car sticks is foot-operated, and the relative vehicle frame of steering hardware is free to rotate; Described actuating device comprises draws bar, stroke bar rotating shaft, semi-circle gear pole, hind axle, gear, chain, sprocket wheel and flywheel, wherein, described gear comprises semi-circle gear, external gear and inner gear, chain comprises chain A and chain B, sprocket wheel and back sprocket wheel before sprocket wheel comprises, flywheel comprises flywheel A and flywheel B; Described stroke of bar is connected with a stroke bar rotating shaft, draws a bar rotating shaft and rotates with respect to vehicle frame; Described semi-circle gear is being drawn in the bar rotating shaft by the semi-circle gear strut fixation; Be provided with preceding sprocket wheel, back sprocket wheel, external gear and inner gear below the semi-circle gear, wherein with the semi-circle gear external toothing external gear arranged, in be engaged with inner gear, preceding sprocket wheel and back sprocket wheel are in parallel with inner gear and external gear respectively; Two identical flywheel A and flywheel B are housed on the described hind axle, and flywheel A is connected with the back sprocket wheel with preceding sprocket wheel with chain B by chain A respectively with flywheel B.
Its principle of work is: both hands pull back when drawing bar, driving semi-circle gear by the rotation of drawing the bar rotating shaft clockwise rotates, this moment, external gear rotated counterclockwise, driving the back sprocket wheel in parallel with it rotates counterclockwise, propulsive effort on the sprocket wheel drives flywheel B by chain B and rotates counterclockwise, thereby the trailing wheel that drives bicycle rolls forward; Meanwhile, inner gear clockwise rotates, and the preceding sprocket wheel in parallel with inner gear also clockwise rotates, and power drives the idle running of flywheel A cw by the transmission of chain A, and the flywheel A of idle running can not interfere with the trailing wheel that conter clockwise rotates forward.
In like manner, pushing away forward when drawing bar, semi-circle gear rotates counterclockwise, and drives inner gear and rotates counterclockwise, and the preceding sprocket wheel in parallel with inner gear also rotates counterclockwise, and propulsive effort drives flywheel A by chain A and rotates counterclockwise, and rotates forward thereby drive the trailing wheel conter clockwise; This moment, external gear clockwise rotated, and drove the back sprocket wheel and clockwise rotated, and power drives flywheel B by chain B and clockwise rotates, and not clockwise rotating of flywheel can interfere with the trailing wheel that just rotates forward at conter clockwise.
When the rider not to draw bar before and after applying oscillatory forces and allow bicycle voluntarily to overtake the time because the effect of flywheel A and flywheel B, hind axle can not given chain A and chain B power, can guarantee that bicycle is smoothly to overtake.
The utility model beneficial effect is: the rider can temper arm muscles.Bar is drawn in the swing of rider's both hands, draws bar in swing process forward or backward, all can realize driving the effect that bicycle advances, and has also accelerated the moving velocity of bicycle.
Description of drawings
Fig. 1 is the scheme drawing of known multifunctional leisure bicycle.
Fig. 2 is the scheme drawing of known pedal-type bicycle and type of drive thereof.
Fig. 3 is the scheme drawing that known foot-operated hand push draws rapid bodybuilding bicycle and three-wheel vehicle.
Fig. 4 is perspective view of the present utility model.
Fig. 5 is the actuating device front view of the utility model embodiment one.
Fig. 6 is the actuating device birds-eye view of the utility model embodiment one.
Fig. 7 is the actuating device front view of the utility model embodiment two.
Fig. 8 is the actuating device birds-eye view of the utility model embodiment two.
Among the figure: 1. vehicle frame, 2. seat, 3. stroke bar 4. turns to foot-operated, 5. the front-wheel car is pitched, 6. front-wheel, 7. semi-circle gear, 8. preceding sprocket wheel, 9. front gear, 10. reversing gear, 11. backgears, 12. back sprocket wheels, 13. chain A, 14. chain B, 15. trailing wheels, 16. flywheel A, 17. hind axle, 18. flywheel B, 19. strokes of bar rotating shafts, 20. semi-circle gear pole, 21 inner geares, 22 external gears.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further elaborated.
Scheme one
Draw the formula body-building bicycle as Fig. 4, Fig. 5 and a kind of hand shown in Figure 6, it comprises vehicle frame 1, seat 2, front-wheel 6, trailing wheel 15, steering hardware and actuating device, the front end of described vehicle frame 1 is provided with steering hardware and front-wheel 6, the rear end is provided with trailing wheel 15, vehicle frame 1 is provided with seat 2, and the lower end of seat 2 is provided with actuating device; Described steering hardware comprises front-wheel car fork 5 and is fixed on and turning to foot-operatedly 4 on the front-wheel car fork 5 that the relative vehicle frame of steering hardware 1 is free to rotate; Described actuating device comprises draws bar 3, stroke bar rotating shaft 19, semi-circle gear pole 20, hind axle 17, gear, chain, sprocket wheel and flywheel, wherein, described gear comprises semi-circle gear 7, reversing gear 10, front gear 9 and backgear 11, chain comprises chain A13 and chain B14, sprocket wheel 8 and back sprocket wheel 12 before sprocket wheel comprises, flywheel comprises flywheel A16 and flywheel B18; Described stroke of bar 3 is connected with a stroke bar rotating shaft 19, draws bar rotating shaft 19 and rotates with respect to vehicle frame 1; Described semi-circle gear 7 is fixed on by semi-circle gear pole 20 and draws in the bar rotating shaft 19; Sprocket wheel 8, front gear 9, reversing gear 10, backgear 11 and back sprocket wheel 12 before being provided with below the described semi-circle gear 7, wherein, with semi-circle gear 7 external toothings reversing gear 10 and backgear 11 are arranged, reversing gear 10 external toothings one front gear 9, front gear 9 and backgear 11 are in parallel with preceding sprocket wheel 8 and back sprocket wheel 12 respectively; Two flywheel A16 and flywheel B18 in the same way are housed on the described hind axle 17, and flywheel A16 is connected with back sprocket wheel 12 with preceding sprocket wheel 8 with chain B14 by chain A13 respectively with flywheel B18.
The rider is sitting on the seat 2, and both feet are placed on and turn on foot-operated 4, with the direction of both feet control front-wheel 6.Both hands are held and are drawn bar 3, pull back and draw bar 3, drive and draw bar rotating shaft 19 rotations, driving semi-circle gear 7 clockwise rotates, reversing gear 10 rotated counterclockwise with backgear 11 and rotated counterclockwise this moment, drive the back sprocket wheel 12 in parallel with it and also rotate counterclockwise, drive flywheel B18 by chain B14 on the back sprocket wheel 12 and rotate counterclockwise, thereby the trailing wheel 15 that drives bicycle rolls forward; The reversing gear 10 that rotates counterclockwise simultaneously, driving front gear 9 clockwise rotates, the preceding sprocket wheel 8 in parallel with front gear 9 also clockwise rotates, and power drives the idle running of flywheel A16 cw by the transmission of chain A13, and the flywheel A16 of idle running can not interfere with the trailing wheel 15 that conter clockwise rotates forward.
The rider is pushing away forward when drawing bar 3, preceding sprocket wheel 8 rotates counterclockwise, driving backgear 11 and reversing gear 10 clockwise rotates, the reversing gear 10 that clockwise rotates drives front gear 9 and rotates counterclockwise, the preceding sprocket wheel 8 in parallel with front gear 9 also rotates counterclockwise, propulsive effort drives flywheel A16 by chain A13 and rotates counterclockwise, and rotates forward thereby drive trailing wheel 15 conter clockwises; The backgear 11 that clockwise rotates simultaneously drives back sprocket wheel 12 and clockwise rotates, and power drives flywheel B18 by chain B14 and clockwise rotates, and not clockwise rotating of flywheel can interfere with the trailing wheel 15 that just rotates forward at conter clockwise.
When the rider not to draw bar 3 before and after applying oscillatory forces and allow bicycle voluntarily to overtake the time because the effect of flywheel A16 and flywheel B18,15 of trailing wheels can not given chain A13 and chain B14 power, can guarantee that bicycle is smoothly to overtake.
Scheme two
Draw the formula body-building bicycle as Fig. 7, a kind of hand shown in Figure 8, it comprises vehicle frame 1, seat 2, front-wheel 6, trailing wheel 15, steering hardware and actuating device, the front end of described vehicle frame 1 is provided with steering hardware and front-wheel 6, the rear end is provided with trailing wheel 15, vehicle frame 1 is provided with seat 2, and the lower end of seat 2 is provided with actuating device; Described steering hardware comprises front-wheel car fork 5 and is fixed on and turning to foot-operatedly 4 on the front-wheel car fork 5 that the relative vehicle frame of steering hardware 1 is free to rotate; Described actuating device comprises draws bar 3, stroke bar rotating shaft 19, semi-circle gear pole 20, hind axle 17, gear, chain, sprocket wheel and flywheel, wherein, described gear comprises semi-circle gear 7, external gear 22 and inner gear 21, chain comprises chain A13 and chain B14, sprocket wheel 8 and back sprocket wheel 12 before sprocket wheel comprises, flywheel comprises flywheel A16 and flywheel B18; Described stroke of bar 3 is connected with a stroke bar rotating shaft 19, draws bar rotating shaft 19 and rotates with respect to vehicle frame 1; Described semi-circle gear 7 is fixed on by semi-circle gear pole 20 and draws in the bar rotating shaft 19; Sprocket wheel 8, back sprocket wheel 12, external gear 22 and inner gear 21 wherein have external gear 22 with semi-circle gear 7 external toothings before being provided with below the semi-circle gear 7, in be engaged with inner gear 21, preceding sprocket wheel 8 and back sprocket wheel 12 are in parallel with inner gear 21 and external gear 22 respectively; Two identical flywheel A16 and flywheel B18 are housed on the described hind axle 17, and flywheel A16 is connected with back sprocket wheel 12 with preceding sprocket wheel 8 with chain B14 by chain A13 respectively with flywheel B18.
Rider's both hands pull back when drawing bar 3, driving preceding sprocket wheel 8 by the rotation of drawing bar 3 rotating shafts clockwise rotates, this moment, external gear 22 rotated counterclockwise, driving the back sprocket wheel 12 in parallel with it rotates counterclockwise, propulsive effort on the back sprocket wheel 12 drives flywheel B18 by chain B14 and rotates counterclockwise, thereby the trailing wheel 15 that drives bicycle rolls forward; Meanwhile inner gear 21 clockwise rotates, and the preceding sprocket wheel 8 in parallel with inner gear 21 also clockwise rotates, and power drives the idle running of flywheel A16 cw by the transmission of chain A13, and the flywheel A16 of idle running can not interfere with the trailing wheel 15 that conter clockwise rotates forward.
The rider is pushing away forward when drawing bar 3, before sprocket wheel 8 rotate counterclockwise, drive inner gear 21 and rotate counterclockwise, the preceding sprocket wheel 8 in parallel with inner gear 21 also rotates counterclockwise, propulsive effort drives flywheel A16 by chain A13 and rotates counterclockwise, and rotates forward thereby drive trailing wheel 15 conter clockwises; This moment, external gear 22 clockwise rotated, and drove back sprocket wheel 12 and clockwise rotated, and power drives flywheel B18 by chain B14 and clockwise rotates, and not clockwise rotating of flywheel can interfere with the trailing wheel 15 that just rotates forward at conter clockwise.
When the rider not to draw bar 3 before and after applying oscillatory forces and allow bicycle voluntarily to overtake the time because the effect of flywheel A16 and flywheel B18,15 of trailing wheels can not given chain A13 and chain B14 power, can guarantee that bicycle is smoothly to overtake.
Claims (2)
1. a hand is drawn the formula body-building bicycle, it comprises vehicle frame (1), seat (2), front-wheel (6), trailing wheel (15), steering hardware and actuating device, it is characterized in that: the front end of described vehicle frame (1) is provided with steering hardware and front-wheel (6), the rear end is provided with trailing wheel (15), vehicle frame (1) is provided with seat (2), and the lower end of seat (2) is provided with actuating device; Described steering hardware comprises front-wheel car fork (5) and is fixed on the front-wheel car pitches turn to foot-operated (4) on (5), and the relative vehicle frame of steering hardware (1) is free to rotate; Described actuating device comprises draws bar (3), stroke bar rotating shaft (19), semi-circle gear pole (20), hind axle (17), gear, chain, sprocket wheel and flywheel, wherein, described gear comprises semi-circle gear (7), reversing gear (10), front gear (9) and backgear (11), chain comprises chain A(13) and chain B(14), sprocket wheel comprises preceding sprocket wheel (8) and back sprocket wheel (12), and flywheel comprises flywheel A(16) and flywheel B(18); Described stroke of bar (3) is connected with a stroke bar rotating shaft (19), draws a bar rotating shaft (19) and rotates with respect to vehicle frame (1); Described semi-circle gear (7) is fixed on by semi-circle gear pole (20) and draws in the bar rotating shaft (19); Be provided with preceding sprocket wheel (8), front gear (9), reversing gear (10), backgear (11) and back sprocket wheel (12) below the described semi-circle gear (7), wherein, with semi-circle gear (7) external toothing reversing gear (10) and backgear (11) are arranged, reversing gear (10) external toothing one front gear (9), front gear (9) and backgear (11) are in parallel with preceding sprocket wheel (8) and back sprocket wheel (12) respectively; Two flywheel A(16 in the same way are housed on the described hind axle (17)) and flywheel B(18), flywheel A(16) with flywheel B(18) respectively by chain A(13) and with chain B(14) with preceding sprocket wheel (8) with the back sprocket wheel (12) be connected.
2. a hand is drawn the formula body-building bicycle, it comprises vehicle frame (1), seat (2), front-wheel (6), trailing wheel (15), steering hardware and actuating device, it is characterized in that: the front end of described vehicle frame (1) is provided with steering hardware and front-wheel (6), the rear end is provided with trailing wheel (15), vehicle frame (1) is provided with seat (2), and the lower end of seat (2) is provided with actuating device; Described steering hardware comprises front-wheel car fork (5) and is fixed on the front-wheel car pitches turn to foot-operated (4) on (5), and the relative vehicle frame of steering hardware (1) is free to rotate; Described actuating device comprises draws bar (3), stroke bar rotating shaft (19), semi-circle gear pole (20), hind axle (17), gear, chain, sprocket wheel and flywheel, wherein, described gear comprises semi-circle gear (7), external gear (22) and inner gear (21), chain comprises chain A(13) and chain B(14), sprocket wheel comprises preceding sprocket wheel (8) and back sprocket wheel (12), and flywheel comprises flywheel A(16) and flywheel B(18); Described stroke of bar (3) is connected with a stroke bar rotating shaft (19), draws a bar rotating shaft (19) and rotates with respect to vehicle frame (1); Described semi-circle gear (7) is fixed on by semi-circle gear pole (20) and draws in the bar rotating shaft (19); Be provided with preceding sprocket wheel (8), back sprocket wheel (12), external gear (22) and inner gear (21) below the semi-circle gear (7), wherein with semi-circle gear (7) external toothing external gear (22) is arranged, in be engaged with inner gear (21), preceding sprocket wheel (8) and the back sprocket wheel (12) in parallel with inner gear (21) and external gear (22) respectively; Two identical flywheel A(16 are housed on the described hind axle (17)) and flywheel B(18), flywheel A(16) with flywheel B(18) respectively by chain A(13) and with chain B(14) with preceding sprocket wheel (8) with the back sprocket wheel (12) be connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220628767 CN203064144U (en) | 2012-11-26 | 2012-11-26 | Hand-paddle type exercise bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220628767 CN203064144U (en) | 2012-11-26 | 2012-11-26 | Hand-paddle type exercise bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203064144U true CN203064144U (en) | 2013-07-17 |
Family
ID=48762962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220628767 Withdrawn - After Issue CN203064144U (en) | 2012-11-26 | 2012-11-26 | Hand-paddle type exercise bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203064144U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102923240A (en) * | 2012-11-26 | 2013-02-13 | 江苏大学 | Hand-rowed type body-building bicycle |
| CN109011340A (en) * | 2018-09-29 | 2018-12-18 | 赵淑丽 | A kind of multifunctional body-building tricycle |
| CN109110036A (en) * | 2018-07-18 | 2019-01-01 | 王小东 | A kind of handle Double-directional rotary driving safety-type front-and-back drive bicycle of front-wheel |
-
2012
- 2012-11-26 CN CN 201220628767 patent/CN203064144U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102923240A (en) * | 2012-11-26 | 2013-02-13 | 江苏大学 | Hand-rowed type body-building bicycle |
| CN102923240B (en) * | 2012-11-26 | 2014-04-09 | 江苏大学 | Hand-rowed type body-building bicycle |
| CN109110036A (en) * | 2018-07-18 | 2019-01-01 | 王小东 | A kind of handle Double-directional rotary driving safety-type front-and-back drive bicycle of front-wheel |
| CN109110036B (en) * | 2018-07-18 | 2024-03-12 | 王小东 | Front wheel safety type front-rear driving bicycle with handle capable of being rotated in two directions |
| CN109011340A (en) * | 2018-09-29 | 2018-12-18 | 赵淑丽 | A kind of multifunctional body-building tricycle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130717 Effective date of abandoning: 20140409 |
|
| RGAV | Abandon patent right to avoid regrant |