CN2405855Y - Rear composite spring shock-proof apparatus of bicycle - Google Patents
Rear composite spring shock-proof apparatus of bicycle Download PDFInfo
- Publication number
- CN2405855Y CN2405855Y CN 99258568 CN99258568U CN2405855Y CN 2405855 Y CN2405855 Y CN 2405855Y CN 99258568 CN99258568 CN 99258568 CN 99258568 U CN99258568 U CN 99258568U CN 2405855 Y CN2405855 Y CN 2405855Y
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- CN
- China
- Prior art keywords
- spring
- shock absorbing
- plank
- main
- locating dowel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Axle Suspensions And Sidecars For Cycles (AREA)
Abstract
The utility model relates to a shock damper with back composite elasticity for bicycles, which is composed of a main oblique beam, an upper connecting frame, a lower connecting frame, a main spring plate, and a coil spring which are connected in sequence, wherein, the coil spring is connected with upper and lower positioning pins; one end of the main spring plate and an auxiliary spring plate is connected with the lower connecting frame, and the other end is connected with a back oblique fork by a connecting sheet of a plate spring. Compared with a barrel type shock damper, the shock damper with back composite elasticity for bicycles has the advantages of wide working dynamic state, long service life, good working characteristics, and no defect of left and right swing. The shock damper with back composite elasticity for bicycles is the shock damper which is suitable for bicycles, motorcycles, power-assisted vehicles, and manpower vehicles.
Description
The utility model relates to a kind of adaptation bicycle, motor scooter, composite elastic shock absorbing apparatus behind boosted vehicle and the rickshaw.
At present, the bicycle that oneself knows, back shock absorbing apparatus such as boosted vehicle mostly adopts two cartridge type shock absorbing apparatus.With the simplest cartridge type coil spring shock absorbing apparatus is example: it is by last lower adaptor, up and down formations such as sleeve, coil spring, guide rod plug.Two cartridge type shock absorbing apparatus branch left-right symmetric of general employing are installed and used on bicycle or boosted vehicle.The cartridge type shock absorbing apparatus is in when work, because sleeve pipe up and down, conduit, guide rod plug exist friction, loss of energy is bigger, and especially for bicycle, long-time row is ridden to feel to send out and sunk, is clamminess, consumes especially power, efficient is reduced greatly, and each parts weares and teares easily, and service life is low.Since about respectively adopt a cartridge type shock absorbing apparatus, wiggly disadvantage appears easily at work, make bad stability, cost is also higher relatively.Common cartridge type shock absorbing apparatus, general load range is narrower, when load is big, occurs " exposing the false " phenomenon easily, the dead point promptly occurs, and trend of work is narrower in relative saying, and operating characteristic is poor.
Composite elastic shook device after the purpose of this utility model provided a kind of bicycle, and it is simple in structure, working stability, the frictional loss energy is minimum, and efficient height, long-time row are ridden the acomia heavy sensation that is clamminess, overcome the wiggly disadvantage that the cartridge type shock-absorbing is brought, trend of work is wide, and operating characteristic is good.
The purpose of this utility model is achieved in that the composite elastic shock absorbing apparatus is by main cant beam behind a kind of bicycle, goes up connecting shaft in link span, the pivoting, back chain stay, tiltedly pitches rotating shaft, the fork that retreads is connected, it is characterized in that: retreading to stick is provided with leaf spring in flakes by stub axle and main spring plank, auxiliary spring plate, oversheath links to each other with following link span, the spring bracket of sticking that retreads joins by following locating dowel pin and coil spring lower end, the upper end joins with last locating dowel pin, and last locating dowel pin is fixed on the link span and joins with main cant beam.Its principle of work is such: when vehicle seat is manned, equaling increases a load FZ to vehicle seat, at this moment FZ is delivered on the middle connecting shaft by main cant beam, middle connecting shaft is a rotary movable axis, it is the B point, power is delivered on the chain stay of back, the other end of back chain stay is connected with wheel, wheel contacts with ground, forms an antagonistic force, by after the rotating oblique fork rotating shaft of an end of the hind axle gone up in flakes and the fork that retreads link to each other, it is the C point, the other end that retreads and pitch, the stub axle of going up in flakes by spring plank is connected with main spring plank, and the other end of main spring plank connects the following link span on the main cant beam.When FZ is downward, the antagonistic force that ground produces by back wheels of vehicle, hind axle, tiltedly pitch the rotating shaft fork that retreads and move up, an end of fixing main spring plank, auxiliary spring plate is motionless on the main cant beam, it is the A point, stub axle on the main spring plank rotates, it is the D point, retread to stick and be provided with spring bracket, by descending fixedly coil spring of locating dowel pin, helical spring upper end is fixed on the main cant beam by link span on the last locating dowel pin, and the fork that retreads continues to move up, and has compressed coil spring, adjust coil spring, the ratio of main spring plank, auxiliary spring plate bearing capacity can obtain suitable load dynamic range.Retread fork oblique fork crossbeam, spring bracket, spring plank in flakes, constitute a stable back chain stay, make the back chain stay can not produce the wigwag motion phenomenon at work; Main spring plank A point on the main cant beam is fixed by the spring plank screw rod, main spring plank D point is joined in flakes by the spring plank of stub axle with the fork that retreads, above-mentioned measure is retreaded to pitch when work and is only moved up and down, there is not the wigwag motion phenomenon, by analyzing, one of A, B, C, D, formation are stable, mobilizable up and down trapezium structure, and one of A, D, E, formation be mobilizable triangular structure up and down.
Owing to adopted technique scheme, solve the double-cylinder type shock-absorbing effectively and bring wiggly disadvantage, increased the trend of work scope, reduced the loss of power, improved work efficiency, can work steadily in the long term.
Below in conjunction with drawings and Examples the utility model is further specified:
Fig. 1 is the utility model general construction scheme drawing.
Fig. 2 is an embodiment main structure schematic rear view.
Fig. 3 is the F-F cross-sectional schematic of Fig. 2.
Among the figure 1, main cant beam 2, go up link span 3, hold-doun nut 4, go up locating dowel pin
5, coil spring 6, following locating dowel pin 7, spring bracket 8, leaf spring are in flakes
9, stub axle 10, stable cover 11, main spring plank cover 12, stub nut
13, main spring plank 14, auxiliary spring plate 15, spring plank screw rod 16, spring plank nut
17, following link span 18, oversheath 19, middle connecting shaft 20, bottom bracket axle
21, back chain stay 22, after in flakes 23, hind axle 24, tiltedly pitch rotating shaft
25, retread fork 26, tiltedly pitch crossbeam 27, back wheels of vehicle 28, ground
FZ load A, spring plank attachment point B, middle connecting shaft run-on point C, the fork run-on point of retreading
D, upper and lower displacement point E, coil spring attachment point
In Fig. 1, last link span (2) is welded on the main cant beam (1), and last link span (2) has pressing of groove upwards and last locating dowel pin (4) and adorns the hole.Last locating dowel pin (4) is installed on the link span (2), and is fixing by hold-doun nut (3).Following link span (17) is welded on the main cant beam (1), following link span (17) has pressing of installation main spring plank (13) auxiliary spring plate (14) and adorns the hole, and have a downward groove, with clamped main spring plank (13), auxiliary spring plate (14) can not swing main spring plank (13) auxiliary spring plate (14), pass main spring plank (13) with spring plank screw rod (15), auxiliary spring plate (14), the mounting hole of following link span (17) closely is combined with each other with spring plank nut (16).The bottom of main cant beam and middle connecting shaft (19) join, in connecting shaft (19) be a rotating movable joint, i.e. B point, middle connecting shaft (19) and bottom bracket axle (20), back chain stay (21), after in flakes (22) join, retread fork (25) by oblique fork rotating shaft (24) with after in flakes (22) join.Tiltedly fork rotating shaft (24) also is a rotating movable joint, i.e. the C point.With spring bracket (7) leaf spring in flakes (8) tiltedly pitch on the relevant position that crossbeam (26) is welded in fork (25) of retreading, constitute a stable trapezoidal fork (25) that retreads.Coil spring (5) can be made the identical spring of external diameter up and down, also can make other form, in order to improve performance and attractive in appearance, the design makes waney trapezoidal spring up and down, the maximum effectively external diameter Φ in coil spring (5) upper end is 25-40mm, the maximum effectively external diameter Φ in lower end is 35-60mm, and the static state of coil spring (5) highly is 50-120mm.In the fixedly employing of coil spring (5) locating dowel pin (4) down locating dowel pin (6) insert in the circular hole of coil spring (5) upper end and in the lower end circular hole of coil spring (5), locating dowel pin (6) insertion portion is cylindrical under the convenient upward locating dowel pin (4) in order to insert, and last locating dowel pin (4) is fixed on the link span (2) with hold-doun nut (3).Following locating dowel pin (6) directly riveted is fixed on the spring bracket (7).Main spring plank (13) is that main spring plank (13) has annulus with the combining of fork (25) of retreading, and is embedded with the stable cover of main spring plank cover (11) (10) in the annulus and passes leaf spring (8) usefulness stub nuts (12) locking in flakes by stub axle (9).Stable cover (10) is longer than main spring plank cover (11) slightly, the free clearance of an activity is provided for main spring plank (13) when purpose is stub nut (12) locking.In order to prevent the intensity of deviating to increase main spring plank (13) of coil spring (5), below spring bracket (7), be lined with auxiliary spring plate (14).It is in order to protect spring plank not weather and to increase Cheng Du attractive in appearance that main spring plank (13) auxiliary spring plate (14) outside is with oversheath (18), and oversheath (18) is made and is with horizontal awave striped.
Claims (9)
1, behind the bicycle composite elastic shock absorbing apparatus be by main cant beam, go up link span, down link span, middle connecting shaft, bottom bracket axle, back chain stay, after in flakes, tiltedly pitch rotating shaft, the fork that retreads, tiltedly pitch crossbeam, stub axle, main spring plank, auxiliary spring plate, oversheath, coil spring and be linked in sequence and constitute, it is characterized in that: retreading to stick is provided with spring bracket, leaf spring in flakes, down locating dowel pin and coil spring join, helical spring upper end and last locating dowel pin join, leaf spring links to each other with main spring plank by the stub axle in flakes, and following link span joins by spring plank screw rod and main spring plank, auxiliary spring plate.
2, composite elastic shock absorbing apparatus behind the bicycle according to claim 1 is characterized in that: go up locating dowel pin, locating dowel pin is cylindrical down, last locating dowel pin inserts in the helical spring upper end hole, under the following locating dowel pin insertion coil spring in the stomidium.
3, composite elastic shock absorbing apparatus behind the bicycle according to claim 1 is characterized in that: go up locating dowel pin and be fixed on the link span, following locating dowel pin is fixed on the spring bracket.
4, composite elastic shock absorbing apparatus behind the bicycle according to claim 1.It is characterized in that: the maximum effectively external diameter 25-40mm in helical spring upper end, the maximum effectively external diameter 35-60mm in helical spring lower end, helical spring static height is 50-120mm.
5, composite elastic shock absorbing apparatus behind the bicycle according to claim 1 is characterized in that: main spring plank is that stub axle, stub nut combine in flakes by spring plank with being connected of fork of retreading.
6, composite elastic shock absorbing apparatus behind the bicycle according to claim 1 is characterized in that: the spring plank screw rod passes main spring plank, auxiliary spring plate, the low groove of link span closely is combined with each other down.
7, composite elastic shock absorbing apparatus behind the bicycle according to claim 1 is characterized in that: below the spring bracket, above the main spring plank, be lined with the auxiliary spring plate.
8, composite elastic shock absorbing apparatus behind the bicycle according to claim 1 is characterized in that: main spring plank, auxiliary spring plate outside are with oversheath.
9, composite elastic shock absorbing apparatus behind the bicycle according to claim 1 is characterized in that: spring bracket, spring plank in flakes, are tiltedly pitched the crossbeam and the fork combination of retreading, and constitute a stable trapezoidal fork that retreads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99258568 CN2405855Y (en) | 1999-12-24 | 1999-12-24 | Rear composite spring shock-proof apparatus of bicycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99258568 CN2405855Y (en) | 1999-12-24 | 1999-12-24 | Rear composite spring shock-proof apparatus of bicycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2405855Y true CN2405855Y (en) | 2000-11-15 |
Family
ID=34041133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99258568 Expired - Fee Related CN2405855Y (en) | 1999-12-24 | 1999-12-24 | Rear composite spring shock-proof apparatus of bicycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2405855Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102085786A (en) * | 2006-08-25 | 2011-06-08 | 戴维·威格利 | Vehicle suspension systems for seperated acceleration responses |
-
1999
- 1999-12-24 CN CN 99258568 patent/CN2405855Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102085786A (en) * | 2006-08-25 | 2011-06-08 | 戴维·威格利 | Vehicle suspension systems for seperated acceleration responses |
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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 |