CN2815844Y - Two-stage transmission up-down treading type bicycle - Google Patents
Two-stage transmission up-down treading type bicycle Download PDFInfo
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- CN2815844Y CN2815844Y CNU2005200607487U CN200520060748U CN2815844Y CN 2815844 Y CN2815844 Y CN 2815844Y CN U2005200607487 U CNU2005200607487 U CN U2005200607487U CN 200520060748 U CN200520060748 U CN 200520060748U CN 2815844 Y CN2815844 Y CN 2815844Y
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- 230000005484 gravity Effects 0.000 description 2
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- 206010050031 Muscle strain Diseases 0.000 description 1
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Abstract
A two-stage transmission up-down treading type bicycle. The utility model relates to a solve prior art and only have spacing and the not compact problem enough of return mechanism of one-level transmission, footboard. The technical scheme is as follows: the bicycle comprises a bicycle frame, a handlebar, front and rear wheels, a seat, two driving sprockets, a driven sprocket, a chain, two pedals, two pedal rods, a driving isolator and a brake, wherein the bicycle frame is provided with an intermediate transmission shaft; the limiting and returning mechanism consists of gear box, two central axles and one linkage shaft, and the central axles have bevel gears in the inner ends and bevel gears meshed with the bevel gears in the inner ends.
Description
Technical field
The utility model belongs to people's running vehicle, particularly a kind of pedal-type bicycle up and down with two-stage transmission.
Background technology
The bicycle that is widely used in daily life now is the revolution pedal-type mostly, and structure comprises support, front-wheel, trailing wheel, vehicle seat, handlebar, pedal, sprocket wheel and chain.When people ride, all be to be sitting in to turn round on the vehicle seat to step on pedal, drive sprocket is rotated, drive wheel revolutions, finish walking process with chain.As people for a long time by bike the time, can find that there are some obvious defects in this bicycle: the one, traveling comfort is poor, the cyclist is sitting on the vehicle seat, tramples pedal with a kind of fixing posture, can feel that soreness of waist bone is painful, when particularly going up a slope, the waist that must arch feels very tired, sometimes firmly to pedal, can cause that also waist muscle sprains, the influence walking; The 2nd, the pedal-rod of revolution pedal-type bicycle can not extend, and revolution scrunches effort, and the posture of having an effect is undesirable, and it is insufficient to cause having an effect; The 3rd, poor stability, the center of gravity of revolution pedal-type bicycle is higher, and stationarity is poor, causes easily toppling over, and causes injures and deaths.In view of the above-mentioned defective of revolution pedal-type bicycle, the someone has proposed the technical scheme of pedal-type bicycle up and down, but complex structure, technology are not mature enough and impracticable; The applicant also in first to file 200420071694.X utility model patent " up and down a kind of pedal-type bicycle ", though can overcome the above-mentioned defective of revolution pedal-type bicycle, but have only one-level transmission, the speed of a motor vehicle to improve, another problem be the spacing and return mechanism of pedal compact inadequately, have influence on the car load aesthetic feeling.
Summary of the invention
There is the compact inadequately shortcoming of spacing and return mechanism of having only one-level transmission, pedal in order to overcome existing pedal-type bicycle up and down, the purpose of this utility model provides a kind of pedal-type bicycle up and down of improved two-stage transmission, mainly solve the problem that pedal-type bicycle existence up and down has only the one-level transmission, the problem that the spacing and return mechanism of otherwise address pedal is compact inadequately.
The technical scheme that its technical problem underlying that solves the utility model adopts is: a kind of pedal-type bicycle up and down of two-stage transmission, comprise vehicle frame and the handlebar that is mounted thereon, front and back wheel, seat, two drive sprockets, driven sprocket, chain, two pedals, two pedal-rods, drive isolator, brake, wherein, front and back wheel difference normal-running fit is in the front and rear part of vehicle frame, seat is loaded on the top of vehicle frame, drive sprocket is installed on the center axletree on the vehicle frame, driven sprocket is installed on the axletree by driving isolator, drive sprocket drives with the driven chain crop rotation by chain and cooperates, handlebar is fixed on the leading section of vehicle frame, the brake lever of brake is contained near the handlebar, its brake facing is installed in the brake position of wheel, be connected between brake lever and the brake facing, two one of pedal-rods are individually fixed in the center axletree, the other end is connected with two pedals respectively, vehicle frame is provided with and cooperates pedal to trample sporting spacing and return mechanism up and down, it is characterized in that: normal-running fit has a tween drive spindle on the vehicle frame, driven sprocket and a middle drive sprocket in the middle of being equipped with two on the tween drive spindle, driven sprocket is installed on the tween drive spindle by driving isolator respectively in the middle of two, two drive sprockets with two in the middle of cooperating chain respectively between the driven sprockets, cooperating chain between middle drive sprocket and the driven sprocket.
The compact inadequately technical scheme of spacing and return mechanism that the utility model solves its pedal is: on the basis of main technical schemes, it is characterized in that: described spacing and return mechanism is by gear case, two center axletrees, a couple axle constitutes, two center axletree coaxial line normal-running fiies are on gear case, the inner of center axletree is equipped with a bevel gear, the outer end of center axletree is installed with drive sprocket and pedal-rod respectively, the couple axle normal-running fit is on gear case, the inner of couple axle be provided with one with center axletree bevel gear ingear bevel gear, the outer end of couple axle is provided with a position-limited lever, and position-limited lever cooperates with the spacing position in the gear case outside.
On the basis of such scheme, the utility model can also be set up other mechanism, as other speed-changing mechanism, move back car castor or headstock oscillating mechanism etc.
Driving isolator can be ratchet and pawl arrangement.
The beneficial effects of the utility model are: owing to adopted the two-stage transmission device, transmitting ratio is increased, can improve the speed of a motor vehicle, in addition when car goes up a slope, the cyclist can pushes pedals in the upright body station, can make full use of the resistance that human body weight overcomes road, make trample more laborsaving, have an effect more abundant; The center of gravity of the pedal-type bicycle up and down of two-stage transmission is low, and stationarity is good, is not easy to topple over, and is fit to do student and child's walking-replacing tool.Because spacing and return mechanism is made of gear case, two center axletrees, a couple axle, compact conformation, volume can be very little, can not influence traditional aesthetic feeling of bicycle.
Description of drawings
Below in conjunction with drawings and Examples the utility model is done to describe more specifically.
Fig. 1 is the scheme drawing of a kind of embodiment of the utility model.
Fig. 2 is that the drive connection of Fig. 1 is overlooked enlarged diagram.
Fig. 3 be Fig. 2 spacing and return mechanism analyse and observe enlarged diagram.
Fig. 4 is that the A of Fig. 3 is to view.
Fig. 5 is the backsight partial view of Fig. 1.
Fig. 6 is the scheme drawing of the another kind of embodiment of the utility model.
Among the figure: 1, vehicle frame; 2, handlebar; 3 and 4, front and back wheel; 5, seat; 6 and 7, drive sprocket; 8, driven sprocket; 9, chain; 10 and 11, pedal; 12 and 13, pedal-rod; 14, drive isolator; 15, brake; 16, center axletree; 18, brake lever; 19, brake facing; 20, spacing and return mechanism; 21, tween drive spindle; 22 and 23, middle driven sprocket; 24, middle drive sprocket; 25, drive isolator; 26 and 27, chain; 28, gear case; 29, center axletree; 30, couple axle; 31 and 32, center axletree bevel gear; 33, couple axle bevel gear; 34, position-limited lever; 35 and 36, banking pin; 37, prop up castor; 38, single foot-supporting frame; 39, the universal wheel that moves back; 40, tween drive spindle.
The specific embodiment
With reference to Fig. 1～2, the pedal-type bicycle up and down of this two-stage transmission, the handlebar 2 that comprises vehicle frame 1 and be mounted thereon, front and back wheel 3 and 4, seat 5, two drive sprockets 6 and 7, driven sprocket 8, chain 9 etc., two pedals 10 and 11, two pedal- rods 12 and 13, drive isolator 14, brake 15, wherein, front and back wheel 3 and 4 difference normal-running fiies are in the front and rear part of vehicle frame 1, seat 5 is loaded on the top of vehicle frame 1, drive sprocket 6 and 7 is installed on the center axletree 16 on the vehicle frame 1, driven sprocket 8 is installed on the wheel shaft of rear wheel 3 by driving isolator 14, drive sprocket 6 and 7 is done drivings by chain 9 etc. with driven sprocket 8 and is cooperated, handlebar 2 is fixed on the leading section of vehicle frame 1, the brake lever 18 of brake 15 is contained near the handlebar 2, its brake facing 19 is installed in the brake position of wheel 4, be connected between brake lever 18 and the brake facing 19, two pedal- rods 12 and 13 1 are individually fixed on the center axletree 16, the other end is connected with 11 with two pedals 10 respectively, vehicle frame 1 is provided with and cooperates pedal to trample sporting spacing and return mechanism 20 up and down, it is characterized in that: normal-running fit has a tween drive spindle 21 on the vehicle frame 1, driven sprocket 22 in the middle of being equipped with two on the tween drive spindle 21, drive sprocket 24 in the middle of 23 and one, driven sprocket 22 and 23 is installed on the tween drive spindle 21 by driving isolator 25 etc. respectively in the middle of two, two drive sprockets 6 and 7 with two in the middle of cooperating chain 26 and 27 respectively between the driven sprockets 22 and 23, cooperating chain 9 between middle drive sprocket 24 and the driven sprocket 8.
In addition, with reference to Fig. 2～Fig. 4, spacing and return mechanism 20 is by gear case 28, two center axletrees 16 and 29, a couple axle 30 constitutes, two center axletrees 16 and 29 by coaxial bearing line normal-running fit on gear case 28, center axletree 16 and the inner of 29 are equipped with a bevel gear 31 and 32, center axletree 16 and 29 outer end are installed with drive sprocket 6 respectively, 7 and pedal- rod 12,13, couple axle 30 passes through the bearing normal-running fit on gear case 28, the inner of couple axle 30 be provided with one with center axletree bevel gear 31 and 32 ingear bevel gears 33, the outer end of couple axle 30 is provided with a position-limited lever 34, the banking pin 35 in the position-limited lever 34 and gear case 28 outsides, 36 cooperate.In the use, when pedal 10 depressed, bevel gear 31 can drive bevel gears 32 by bevel gear 33 make backward rotation, pedal 11 is risen get back to position to be stepped on, and when should pedal 11 depressing, pedal 10 also can rise and get back to position to be stepped on; Couple axle 30 rotation processes, when position-limited lever 34 limited nails 35,36 blocked, the up-and-down movement of pedal 10,11 just arrived top dead point or bottom dead point.Also be provided with a castor 37 on the vehicle frame 1, can improve safety by bike.With reference to Fig. 5, on the axle of rear wheel 3 a single foot-supporting frame 38 is installed also, single foot-supporting frame 38 ends are provided with a universal wheel 39 that moves back, and when bicycle need retreat, with the bicycle slightly inclined, retreat with front vehicle wheel 4 and the universal wheel 39 that moves back, and can make that to move back car more convenient; If what the axle of rear wheel 3 was gone up installation is a full foot-supporting frame, the lower end of full foot-supporting frame can be provided with two universal wheels that move back, and it is the same that its effect is set up a universal wheel that moves back with single leg.
With reference to Fig. 6, the pedal-type bicycle up and down of this two-stage transmission, to compare with the embodiment of Fig. 1, its difference only is the position difference of tween drive spindle 40, other structure is identical with the embodiment of Fig. 1.
Claims (3)
1, a kind of pedal-type bicycle up and down of two-stage transmission, comprise vehicle frame and the handlebar that is mounted thereon, front and back wheel, seat, two drive sprockets, driven sprocket, chain, two pedals, two pedal-rods, drive isolator, brake, wherein, front and back wheel difference normal-running fit is in the front and rear part of vehicle frame, the top of seat dress dry turning frame, drive sprocket is installed on the center axletree on the vehicle frame, driven sprocket is installed on the axletree by driving isolator, drive sprocket drives with the driven chain crop rotation by chain and cooperates, handlebar is fixed on the leading section of vehicle frame, the brake lever of brake is contained near the handlebar, its brake facing is installed in the brake position of wheel, be connected between brake lever and the brake facing, two one of pedal-rods are individually fixed in the center axletree, the other end is connected with two pedals respectively, vehicle frame is provided with and cooperates pedal to trample sporting spacing and return mechanism up and down, it is characterized in that: normal-running fit has a tween drive spindle on the vehicle frame, driven sprocket and a middle drive sprocket in the middle of being equipped with two on the tween drive spindle, driven sprocket is installed on the tween drive spindle by driving isolator respectively in the middle of two, two drive sprockets with two in the middle of cooperating chain respectively between the driven sprockets, cooperating chain between middle drive sprocket and the driven sprocket.
2, pedal-type bicycle up and down by the described two-stage transmission of claim 1, it is characterized in that described spacing and return mechanism is by gear case, two center axletrees, a couple axle constitutes, two center axletree coaxial line normal-running fiies are on gear case, the inner of center axletree is equipped with a bevel gear, the outer end of center axletree is installed with drive sprocket and pedal-rod respectively, the couple axle normal-running fit is on gear case, the inner of couple axle be provided with one with center axletree bevel gear ingear bevel gear, the outer end of couple axle is provided with a position-limited lever, and position-limited lever cooperates with the spacing position in the gear case outside.
3, press the pedal-type bicycle up and down of claim 1 or 2 described two-stage transmissions, it is characterized in that being equipped with on the axle of described rear wheel a single foot-supporting frame, single foot-supporting frame end and be provided with on the universal axle that moves back wheel or rear wheel a full foot-supporting frame is installed, the lower end of foot-supporting frame is provided with two universal wheels that move back entirely.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200607487U CN2815844Y (en) | 2005-06-27 | 2005-06-27 | Two-stage transmission up-down treading type bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2005200607487U CN2815844Y (en) | 2005-06-27 | 2005-06-27 | Two-stage transmission up-down treading type bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2815844Y true CN2815844Y (en) | 2006-09-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2005200607487U Expired - Fee Related CN2815844Y (en) | 2005-06-27 | 2005-06-27 | Two-stage transmission up-down treading type bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2815844Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105691534A (en) * | 2016-01-28 | 2016-06-22 | 何泽江 | Driving mechanism for bicycle or tricycle |
| CN108791652A (en) * | 2018-06-14 | 2018-11-13 | 秦小桀 | A kind of bicycle of unidirectional installation wheel |
-
2005
- 2005-06-27 CN CNU2005200607487U patent/CN2815844Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105691534A (en) * | 2016-01-28 | 2016-06-22 | 何泽江 | Driving mechanism for bicycle or tricycle |
| CN108791652A (en) * | 2018-06-14 | 2018-11-13 | 秦小桀 | A kind of bicycle of unidirectional installation wheel |
| CN108791652B (en) * | 2018-06-14 | 2024-03-05 | 秦小桀 | Bicycle with unidirectional wheel |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060913 |