CN2752163Y - Fast speed bicycle - Google Patents
Fast speed bicycle Download PDFInfo
- Publication number
- CN2752163Y CN2752163Y CN 200420089191 CN200420089191U CN2752163Y CN 2752163 Y CN2752163 Y CN 2752163Y CN 200420089191 CN200420089191 CN 200420089191 CN 200420089191 U CN200420089191 U CN 200420089191U CN 2752163 Y CN2752163 Y CN 2752163Y
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- CN
- China
- Prior art keywords
- chain
- speed
- wheel
- vehicle frame
- changing chain
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- Expired - Fee Related
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Abstract
The utility model discloses a fast speed bicycle comprising a bicycle frame, a middle shaft, a driving disk chuck and a flywheel of a rear wheel, wherein the driving disk chuck is arranged at the left of the middle shaft; a final stage speed variation chain wheel composed of a chain wheel and a small chain wheel which are mutually fixedly together is arranged at the right position which is opposite to the driving disk chuck, of the bicycle frame; at least a group of middle speed variation chain wheels composed of a big chain wheel and a small chain wheel which are mutually fixed is arranged on the bicycle frame by installation shafts; the number of the big chain wheels of the final stage speed variation chain wheel and the middle speed variation chain wheel is much more than the number of the small chain wheels; the big chain wheel of the final stage speed variation chain wheel is in transmission with the flywheel by a chain; the small chain wheel of the final stage speed variation chain wheel is in transmission with the big chain wheel of the middle speed variation chain wheel by a chain; the driving disk chuck is in transmission with the small chain wheel of the middle speed variation chain wheel by a chain. The bicycle implements at least three-stage acceleration and the fast running of the bicycle; in addition, the number of pedaling turns is reduced so that legs of people are not easy to fatigue.
Description
Technical field
The utility model relates to a kind of bicycle, is a kind of bicycle with speedup function specifically, and the moving velocity of this bicycle can be much higher than existing bicycle.
Background technology
Bicycle is the easy vehicle of a kind of low speed, and its moving velocity is by flywheel on cycle wheel diameter and the rear wheel and the initiatively ratio of number of teeth decision of floral disc, and present ordinary bicycle and variable speed bicycle all are one-level speedups.Because the wheel diameter of bicycle can not be too big, so in order to improve bicycle running speed, existing variable speed bicycle is recently to improve its moving velocity by the number of teeth that increases active floral disc and flywheel, but, the floral disc of bicycle and the diameter of flywheel are subjected to the restriction of bicycle structure and installation site, and floral disc can not be done too greatly, and flywheel also can not be too little, make that the sprocket wheel ratio of floral disc and flywheel can not be too big, so the speedup effect of this one-level speedup structure just is restricted.
The utility model content
The purpose of this utility model is to provide a kind of quick bicycle, and this bicycle can be realized three grades of speedups at least, has simple in structure, rationally distributed, fast speed advantage.
The utility model adopts following technical scheme: bicycle comprises vehicle frame fast, axis, active floral disc and rear wheel flywheel, described active floral disc is installed in the axis leftward position, with the position that initiatively floral disc is relative the final stage speed-changing chain that is made of hinge wheel fixed with each other and minor sprocket is installed on the vehicle frame right side, on vehicle frame, also one group of middle speed-changing chain that is interfixed and constituted by hinge wheel and minor sprocket is installed at least by installation shaft, the number of teeth of the hinge wheel in described final stage speed-changing chain and the middle speed-changing chain is higher than the number of teeth of minor sprocket, hinge wheel in the final stage speed-changing chain is by chain and flywheel transmission, minor sprocket in the final stage speed-changing chain is by the hinge wheel transmission in chain and the middle speed-changing chain, and initiatively floral disc is by the minor sprocket transmission in chain and the middle speed-changing chain.
Speed-changing chain can be one group in the middle of described, is installed in the preceding spider position of vehicle frame, and hinge wheel wherein is positioned at the vehicle frame right side, and minor sprocket is positioned at the vehicle frame left side.
Speed-changing chain can be three groups in the middle of described, is installed in the preceding spider position of vehicle frame, and wherein the hinge wheel in a group is positioned at the vehicle frame left side, and minor sprocket is positioned at the vehicle frame right side; Other two groups of coaxial respectively and arranged on left and right sides that are installed in vehicle frame, and the minor sprocket in each group is positioned at the outside of corresponding hinge wheel, between the adjacent middle speed-changing chain of the same side by chain gear, same chain in the middle of one the hinge wheel in the speed-changing chain and adjacent in the middle of become on the minor sprocket in the band chain wheel.
Speed-changing chain can also be five groups in the middle of described, is installed in the preceding spider position of vehicle frame, and wherein the hinge wheel in a group is positioned at the vehicle frame right side, and minor sprocket is positioned at the vehicle frame left side; Install with rotational symmetry in twos for other four groups, and speed-changing chain lays respectively at the vehicle frame left and right sides in the middle of coaxial two groups, wherein the hinge wheel in the middle speed-changing chain on axle is in the outside, hinge wheel in the middle speed-changing chain on another root axle is in the inboard, the middle speed-changing chain of the same side is by chain gear, same chain in the middle of one the hinge wheel in the speed-changing chain and adjacent in the middle of become on the minor sprocket in the band chain wheel.
Above-mentioned middle speed-changing chain can be installed on the adapter plate, and adapter plate is installed in the preceding spider place of vehicle frame.
On the described adapter plate mounting hole is arranged, mounting hole can be made of a macropore and an aperture of being connected, and described installation shaft is through in the aperture, has two baffle rings to lay respectively at the adapter plate both sides on the installation shaft.
There is deep-slotted chip breaker at the axis hole two ends of speed-changing chain in the middle of described, hoop is equipped with a circle ball in the groove, and a retaining bowl is embedded in the deep-slotted chip breaker, and ball is clipped in the gap of retaining bowl and sprocket wheel formation, described installation shaft is passed the axis hole on retaining bowl and the intermediate chain wheel, axle head is installed is screwed with the nut that compresses the retaining bowl.
Described intermediate chain wheel outside can be covered with the chain wheel cover, to prevent scraping rider's clothes dirty or to twist.
Hinge wheel and floral disc in the middle of described in the speed-changing chain can be 23 teeth, and minor sprocket and flywheel are 18 teeth.
This quick bicycle can be realized at least three grades of speedups owing to be provided with middle speed-changing chain and final stage speed-changing chain, can realize the fast running of bicycle, and because the number of turns of pedal reduces, makes people's shank be difficult for producing sense of fatigue.And because floral disc is installed in the left side of vehicle frame, the final stage speed-changing chain is installed in the vehicle frame right side, and speed-changing chain symmetry is installed in the vehicle frame both sides in the middle of other, and compact conformation is convenient to install more multistage middle speed-changing chain, realizes being higher than the three-step gear shift purpose.
Description of drawings
Fig. 1 is the front view of a kind of seven grades of speed change embodiments of quick bicycle of the present utility model;
Fig. 2 is the back view of Fig. 1;
Fig. 3 is the transmission principle figure of Fig. 1;
Fig. 4 is the mounting means scheme drawing of middle speed-changing chain;
Fig. 5 is the scheme drawing of the mounting hole shape on the adapter plate.
The specific embodiment
Below in conjunction with accompanying drawing and a preferred embodiment quick bicycle of the present utility model is described further.
As depicted in figs. 1 and 2, what relate in the present embodiment is a kind of seven grades of variable speed bicycles, is welded with an adapter plate 2 between the cant beam 1 and 9 in the preceding triangle fork of cycle frame, and adapter plate 2 can be a plate iron, for example thick steel plate of 4mm.Speed-changing chain in the middle of on adapter plate 2, being equipped with 5 groups, speed-changing chain includes a hinge wheel and a minor sprocket in the middle of every group, hinge wheel and minor sprocket are connected and fixed and become one structure, the number of teeth of hinge wheel is higher than minor sprocket, hinge wheel is 52,42,31,41,51 among the figure, and minor sprocket is 54,44,32,43,53,63.With reference to shown in Figure 3, sprocket wheel 31 is coaxial and all be fixed together with axle with 32, and sprocket wheel 41 and 43 is a sprocket body, and sprocket wheel 42 and 44 is a sprocket body, and sprocket wheel 51 and 53 is a sprocket body, and sprocket wheel 52 and 54 is a sprocket body, and sprocket wheel 61 and 63 is a sprocket body.Between floral disc 62 and sprocket wheel 54, between sprocket wheel 52 and the sprocket wheel 44, between sprocket wheel 42 and the sprocket wheel 32, between sprocket wheel 31 and the sprocket wheel 43, between sprocket wheel 41 and the sprocket wheel 53, between sprocket wheel 51 and the sprocket wheel 63, between sprocket wheel 61 and the flywheel 7 chain is installed.
In conjunction with Fig. 3, Fig. 4 and shown in Figure 5, there are 3 mounting holes to be used for installation shaft 30 in the present embodiment on the adapter plate 2,40,50, the shape of its mounting hole as shown in Figure 5, connect into by the big hole 100 in the place ahead and the small sircle hole 200 at rear, the slightly larger in diameter of small sircle hole 200 is in corresponding installation shaft 30,40,50 diameter, two baffle rings of the slightly larger in diameter of big hole 100 on installation shaft are the diameter of the baffle ring 45 shown in Fig. 3 and Fig. 4 for example, like this installation shaft is penetrated from big hole 100 places and make two baffle rings be positioned at adapter plate 2 both sides to move backward then and make it be through small sircle hole 200 positions, just with installation shaft 30,40,50 are contained on the adapter plate 2, after then required chain all being installed, by the stretch-draw of chain and the effect of both sides baffle ring, installation shaft just is positioned on the adapter plate 2 and can fall down or swing.This structure installs and dismantles very convenient, can adjust number of steps of speeds with comparalive ease, for example pulls down installation shaft 40 and corresponding sprocket wheel, and sprocket wheel 31 and 32 pairs of change places, then can form the Pyatyi speed change; Installation shaft 40 and 50 is pulled down together with the sprocket wheel of installing above, then can be realized three-step gear shift.
Being installed on the adapter plate 2 middle speed-changing chain symmetry in the present embodiment, its transmission direction is finished earlier forward turning to backward by middle speed-changing chain 31 and 32 dexterously again, and utilized the locus of spider before the vehicle frame fully, so compact conformation, easy for installation, the middle speed-changing chain of more stages can be installed on the basis that the structure of minimizing to vehicle frame of trying one's best changes, realize multistage, high speed speedup purpose, this mode especially is fit to the speedup transformation to existing bicycle, can cost-cutting.Though middle speed-changing chain also can be installed in other position of vehicle frame, for example on the vehicle frame of back, because of being subjected to the restriction of locus, its installation and layout be difficulty relatively, is difficult for realizing the multi-stage acceleration effect.
All sprocket wheels promptly can be by common bearing installation on installation shaft, also adopt the mounting means of bicycle freewheel to install, for example Fig. 4 shows and adopts this kind mode that sprocket wheel 41 and 42 is installed in structure on the installation shaft 40, the middle speed-changing chain 41 of integrative-structure, there is deep-slotted chip breaker at 42 axis hole two ends, be installed in spin 46 in the deep-slotted chip breaker and load onto retaining bowl 47 and pad 48, nut 49 is screwed in installation shaft 40 ends just middle speed-changing chain can be installed on the corresponding axle, the structure of speed-changing chain can be smaller and more exquisite in the middle of this mode was compared with the mode that adopts plain bearing, simply.
Final stage speed-changing chain 61,63 is installed on the axis axle sleeve of vehicle frame.
In the middle of in order to prevent by bike speed-changing chain set-off clothes or with clothing twist into, in middle speed-changing chain both sides chain wheel cover (omitting among the figure) can be set middle speed-changing chain is covered, and make car body more attractive in appearance.
Its principle of work is: as rider by bike the time, drive sprocket wheel 54 and 52 with foot-operated crank throw 8 bonded assembly floral discs 62 by chain and rotate, quicken because floral disc 62 numbers of teeth, form one-level greater than the number of teeth of sprocket wheel 54; In like manner, sprocket wheel 52 drives sprocket wheel 44 and 42 by chain and rotates the acceleration of formation secondary, sprocket wheel 42 drives sprocket wheel 32 and 31 by chain and rotates three grades of acceleration of formation, sprocket wheel 31 drives sprocket wheel 43 and 41 and rotates the acceleration of formation level Four, sprocket wheel 41 drives sprocket wheel 53 and 51 and rotates the acceleration of formation Pyatyi, sprocket wheel 51 drives sprocket wheel 63 and 61 and rotates six grades of acceleration of formation, and sprocket wheel 61 drives flywheels 7 and forms seven grades of acceleration, makes bicycle running speed faster.For example floral disc 62 and hinge wheel 52,42,31,41,51,61 are 23 teeth in the present embodiment, sprocket wheel 54,44,32,43,53,63 and flywheel 7 are 18 teeth, then floral disc 62 is 5.56 with the transmitting ratio of flywheel 7, be that floral disc 62 rotates 1 circle, flywheel 7 will change 5.56 circles, can increase bicycle running speed greatly, reach the speedup purpose.
Claims (9)
1, a kind of quick bicycle comprises vehicle frame, axis, active floral disc and rear wheel flywheel, it is characterized in that: described active floral disc is installed in the axis leftward position, with the position that initiatively floral disc is relative the final stage speed-changing chain that is made of hinge wheel fixed with each other and minor sprocket is installed on the vehicle frame right side, on vehicle frame, also one group of middle speed-changing chain that is interfixed and constituted by hinge wheel and minor sprocket is installed at least by installation shaft, the number of teeth of the hinge wheel in described final stage speed-changing chain and the middle speed-changing chain is higher than the number of teeth of minor sprocket, hinge wheel in the final stage speed-changing chain is by chain and flywheel transmission, minor sprocket in the final stage speed-changing chain is by the hinge wheel transmission in chain and the middle speed-changing chain, and initiatively floral disc is by the minor sprocket transmission in chain and the middle speed-changing chain.
2, quick bicycle as claimed in claim 1 is characterized in that: speed-changing chain is one group in the middle of described, is installed in the preceding spider position of vehicle frame, and hinge wheel wherein is positioned at the vehicle frame right side, and minor sprocket is positioned at the vehicle frame left side.
3, quick bicycle as claimed in claim 1 is characterized in that: speed-changing chain is three groups in the middle of described, is installed in the preceding spider position of vehicle frame, and wherein the hinge wheel in a group is positioned at the vehicle frame left side, and minor sprocket is positioned at the vehicle frame right side; Other two groups of coaxial respectively and arranged on left and right sides that are installed in vehicle frame, and the minor sprocket in each group is positioned at the outside of corresponding hinge wheel, between the adjacent middle speed-changing chain of the same side by chain gear, same chain in the middle of one the hinge wheel in the speed-changing chain and adjacent in the middle of become on the minor sprocket in the band chain wheel.
4, quick bicycle as claimed in claim 1 is characterized in that: speed-changing chain is five groups in the middle of described, is installed in the preceding spider position of vehicle frame, and wherein the hinge wheel in a group is positioned at the vehicle frame right side, and minor sprocket is positioned at the vehicle frame left side; Install with rotational symmetry in twos for other four groups, and speed-changing chain lays respectively at the vehicle frame left and right sides in the middle of coaxial two groups, wherein the hinge wheel in the middle speed-changing chain on axle is in the outside, hinge wheel in the middle speed-changing chain on another root axle is in the inboard, the middle speed-changing chain of the same side is by chain gear, same chain in the middle of one the hinge wheel in the speed-changing chain and adjacent in the middle of become on the minor sprocket in the band chain wheel.
5, as described quick bicycle one of in the claim 1 to 4, it is characterized in that: above-mentioned middle speed-changing chain is installed on the adapter plate, and adapter plate is installed in the preceding spider place of vehicle frame.
6, quick bicycle as claimed in claim 5, it is characterized in that: on the described adapter plate mounting hole is arranged, mounting hole is made of a macropore and an aperture of being connected, and described installation shaft is through in the aperture, has two baffle rings to lay respectively at the adapter plate both sides on the installation shaft.
7, quick bicycle as claimed in claim 6, it is characterized in that: there is deep-slotted chip breaker at the axis hole two ends of speed-changing chain in the middle of described, hoop is equipped with a circle ball in the groove, a retaining bowl is embedded in the deep-slotted chip breaker, ball is clipped in the gap of retaining bowl and sprocket wheel formation, described installation shaft is passed the axis hole on retaining bowl and the intermediate chain wheel, axle head is installed is screwed with the nut that compresses the retaining bowl.
8, as described quick bicycle one of in the claim 1 to 4, it is characterized in that: described intermediate chain wheel outside is covered with the sprocket wheel cover.
9, quick bicycle as claimed in claim 1 is characterized in that: hinge wheel and floral disc in the middle of described in the speed-changing chain are 23 teeth, and minor sprocket and flywheel are 18 teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420089191 CN2752163Y (en) | 2004-09-03 | 2004-09-03 | Fast speed bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420089191 CN2752163Y (en) | 2004-09-03 | 2004-09-03 | Fast speed bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2752163Y true CN2752163Y (en) | 2006-01-18 |
Family
ID=35913572
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420089191 Expired - Fee Related CN2752163Y (en) | 2004-09-03 | 2004-09-03 | Fast speed bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2752163Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102381583A (en) * | 2011-10-10 | 2012-03-21 | 浙江海森纺机科技有限公司 | Lower chain wheel blocking sleeve on rope-weaving netting-free winding machine |
-
2004
- 2004-09-03 CN CN 200420089191 patent/CN2752163Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102381583A (en) * | 2011-10-10 | 2012-03-21 | 浙江海森纺机科技有限公司 | Lower chain wheel blocking sleeve on rope-weaving netting-free winding machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |