CN2936911Y - Speed variator of tricycle - Google Patents
Speed variator of tricycle Download PDFInfo
- Publication number
- CN2936911Y CN2936911Y CN 200620021289 CN200620021289U CN2936911Y CN 2936911 Y CN2936911 Y CN 2936911Y CN 200620021289 CN200620021289 CN 200620021289 CN 200620021289 U CN200620021289 U CN 200620021289U CN 2936911 Y CN2936911 Y CN 2936911Y
- Authority
- CN
- China
- Prior art keywords
- crank
- push rod
- axis
- pin
- flywheel
- 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
Links
Images
Abstract
The utility model discloses a people-powered transmission, which is composed of an internal chain, an external chain, a sprocket, a bottom bracket, a crank arm, and a steering lever, wherein the internal chain is arranged on the shell of the sprocket and a pin-lift is arranged under the sprocket detent. The external chain is arranged on the crank arm which is fixed on the bottom bracket. The steering level is arranged on the crank arm via a fulcrum spindle and bracket. A push rod and shift lever are arranged in the central hole of the bottom bracket, wherein one end of the shift lever is positioned in the rectangular hole of the pin-lift and the other end is controlled by the slope end of the pin-lift. The other end of the pin-lift is connected with the steering lever. The people-powered transmission is arranged in the shell of the people-powered or bike bottom bracket. The internal and external chains are connected with the two sprockets on the back shaft through the chain respectively. The transmission is used to change speed by operating the steering lever to enable the detent to lock or to be pulled back into the slot.
Description
Technical field
The utility model relates to a kind of change-speed box that is applied on rickshaw or the bicycle.
Background technology
Existing change-speed box kind is a lot, and can be applied to has following several situation, the one, a gear transmission on the rickshaw.This change-speed box volume is big, processed complex, lubricating requirement height, cost height.The 2nd, the sprocket transmission that bicycle uses.This change-speed box only is applicable to that load is little, the situation that speed change is not frequent.The 3rd, with the change-speed box of pin back-pedal speed change.This change-speed box does not have the speed change location, and speed change is difficult for grasping the off-gear phenomenon that often occurs in service.The 4th, manual flywheel multi-speed device.This erection of transmission is cumbersome, is difficult for adjusting, and maintenance is difficult, the cost height.The 5th, the different flywheel multi-speed device of double-stranded bar.Though it is simple and convenient that this change-speed box is installed, the processing and manufacturing difficulty is big, investment is big, cost is high.
The utility model content
It is a kind of laborsaving when having heavy duty that the utility model purpose is to provide, the speed changer for man-power drawn vehicle of fireballing function during underloading.The maximum characteristics of this change-speed box are easy installations, and reliable in quality is simple in structure, owing to adopted the standard flywheel, make cost reach minimum.
The utility model speed changer for man-power drawn vehicle comprises axis, crank, flywheel, inner sprocket dish, outer chain sprocket and actuating linkage etc.Flywheel is made up of overcoat, interior cover, ratchet, silk retaining, steel ball etc.The inner sprocket dish is fixed on the Case of fly-wheel by bolt or rivet, and flywheel is fixed on the axis by axle sleeve, and radial hole is built-in with push rod below the flywheel ratchet, and the push rod lower end has slot, and the effect action of the spring is on ratchet.Outer chain sprocket is fitted on the crank, and crank is fixed on the axis by crank pin.Actuating linkage is installed on the crank by fulcrum shaft and support.At the actuating linkage two ends magnet is installed, is used for the location.Centre hole at axis is built-in with push rod, and the push rod right-hand member is connected with the actuating linkage upper end by bearing pin, and the push rod left end is ramp structure.Shifting lever is installed in the axis centre hole simultaneously by fulcrum shaft, and the shifting lever left end places in the slot of push rod lower end, the control of right-hand member drawn stem inclined-plane.On fulcrum shaft, also be equipped with and stir spring, stir action of the spring on shifting lever.
Description of drawings
Fig. 1 is the front view of the utility model speed changer for man-power drawn vehicle
Fig. 2 is the cutaway view of the A-A direction of the utility model Fig. 1
The specific embodiment
Speed changer for man-power drawn vehicle as shown in the figure, base portion are by inner sprocket dish 12, outer chain sprocket 11, axis 10, crank 2, and actuating linkage 5 and flywheel are formed.Flywheel is made up of overcoat 13, ratchet 14 and steel ball, interior cover, silk retaining.Inner sprocket dish 12 is fixed on the Case of fly-wheel 13 by bolt or rivet, and flywheel is installed on the axis 10 by axle sleeve 15.Effect spring 20 (see figure 2)s act on above the ratchet 14, and radial hole is built-in with push rod 16 below ratchet 14, and push rod 16 lower ends have slot, and can move up and down.Outer chain sprocket 11 is fitted on the crank 2, and crank 2 is fixed on the axis 10 by crank pin 7.On crank 2, actuating linkage 5 is installed on the support 4 by fulcrum shaft 3 support 4 by screw retention.Magnet 1 and 6 is used for the location by the two ends of screw retention at actuating linkage 5.Push rod 9 places in the centre hole of axis 10, but and sway, the push rod left end is ramp structure, right-hand member is connected with actuating linkage 5 by bearing pin 8.Shifting lever 17 is installed in simultaneously by fulcrum shaft 19 in the centre hole of axis, and left end places in the slot of push rod 16 lower ends, the control of the beveled end of right-hand member drawn stem 9.On fulcrum shaft 19, also be equipped with and stir spring 18.Stirring spring 18 acts on the shifting lever 17.
The utility model speed changer for man-power drawn vehicle is installed in rickshaw or the bicycle middle shaft cover, belongs to dual-range transmission.Inside and outside chain sprocket is connected with two flywheels on the rickshaw rear axle by chain respectively.The transmitting ratio of outer chain sprocket connection transmission must connect the transmitting ratio of transmission greater than the inner sprocket dish.This change-speed box is by handle actuating linkage with pin the flywheel ratchet to be in fastening state or the withdrawal groove, thereby realizes the purpose of speed change.
The working process of the utility model speed changer for man-power drawn vehicle is: handle actuating linkage when the human pin and rotate counterclockwise, when making magnet 6 be adsorbed on the crank, the actuating linkage upper end promotes push rod and moves to left, the push rod beveled end is with shifting lever right-hand member jack-up, and the shifting lever left end is stirred pre-bar and moved down, and ratchet is withdrawn under the effect action of the spring in the groove, at this moment, ratchet loses the control to Case of fly-wheel, and Case of fly-wheel is in the art skating state, does not play power transmission.This moment, the pass order of power was: the people arrives rear axle to wheel to crank to outer chain sprocket to chain to rear flywheel.This moment, transmitting ratio was bigger, and rickshaw is in the heavy-duty low-speed state, is called the I shelves.Handle actuating linkage when the human pin and clockwise rotate, when making magnet I be adsorbed on the crank, actuating linkage upper end pulling-pushing rod moves to right, and push rod beveled end and shifting lever break away from.Shifting lever clockwise rotates stirring under the action of the spring, thereby stir to move on the push rod ratchet jack-up is in fastening state.This moment, the pass order of power was: the people is set to ratchet in to axle sleeve to flywheel and arrives the inner sprocket dish to Case of fly-wheel and arrive rear flywheel to chain and arrive rear axle and arrive wheel to crank to axis.This moment, transmitting ratio was less, and rickshaw is in the underloading fast state, is called the II shelves.Since this moment transmitting ratio less than I shelves transmitting ratio, so the rear flywheel that is connected with the I shelves is in reverse sliding state, inoperative.
Claims (1)
- A kind of speed changer for man-power drawn vehicle comprises inner sprocket dish (12), outer chain sprocket (11), crank (2), axis (10), actuating linkage (5) and flywheel, it is characterized in that: inner sprocket dish (12) is fixed together with Case of fly-wheel (13), flywheel is fixed on the axis (10) by axle sleeve (15), radial hole in flywheel ratchet (14) below is built-in with push rod (16), the lower end of push rod (16) has slot, effect spring (20) is pressed in above the ratchet, outer chain sprocket (11) is fitted on the crank (2), crank (2) is fixed on the axis (10) by crank pin (7), actuating linkage (5) is installed on the crank (2) by fulcrum shaft (3) and support (4), magnet (1) is equipped with at the actuating linkage two ends respectively, (6) be used for the location, push rod (9) places in the centre hole of axis (10), one end is connected with bearing pin with an end of actuating linkage (5), the other end is ramp structure, shifting lever (17) is installed in the centre hole of axis (10) by fulcrum shaft (19), one end places in the oblong aperture of push rod (16) lower end, the control of other end drawn stem beveled end is stirred spring (18) and is installed on the fulcrum shaft (19), acts on the shifting lever (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620021289 CN2936911Y (en) | 2006-07-26 | 2006-07-26 | Speed variator of tricycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620021289 CN2936911Y (en) | 2006-07-26 | 2006-07-26 | Speed variator of tricycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2936911Y true CN2936911Y (en) | 2007-08-22 |
Family
ID=38360932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620021289 Expired - Fee Related CN2936911Y (en) | 2006-07-26 | 2006-07-26 | Speed variator of tricycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2936911Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102556273A (en) * | 2012-03-08 | 2012-07-11 | 中山新宝五金弹簧有限公司 | Rear chain wheel component for bicycle |
-
2006
- 2006-07-26 CN CN 200620021289 patent/CN2936911Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102556273A (en) * | 2012-03-08 | 2012-07-11 | 中山新宝五金弹簧有限公司 | Rear chain wheel component for bicycle |
| CN102556273B (en) * | 2012-03-08 | 2013-06-12 | 中山新宝精密科技有限公司 | Rear chain wheel component for bicycle |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN206682233U (en) | Single wheel drive two keeps off fully-automatic gearbox after a kind of | |
| CN201866218U (en) | Manual-automatic integral shifting mechanism | |
| CN106627975A (en) | Linear pedaling single-wheel direct drive transmission | |
| CN2936911Y (en) | Speed variator of tricycle | |
| CN203488703U (en) | Sliding gear shift positioning mechanism for tractor | |
| CN106246906B (en) | A kind of overgear gearbox General-purpose manipulators and its application method | |
| CN201026984Y (en) | Reverse trample gear switching device of bicycle | |
| CN201235906Y (en) | Speed change driver of bicycle | |
| CN201099220Y (en) | Automobile shifting operation mechanism | |
| CN206130074U (en) | General controlling device of overgear gearbox | |
| CN101966864B (en) | Micro box-type transmission of bicycle | |
| CN202510695U (en) | Dual-rod control mechanism for gearbox | |
| CN201882225U (en) | Minitype box-type transmission of bicycle | |
| CN201636308U (en) | Gear reversing and shifting device of six-gear manual transmission | |
| CN201013887Y (en) | Double speed changing shifting lever speed changing box control mechanism | |
| CN2827865Y (en) | Speed transmission of bicycle | |
| CN202790484U (en) | Neural positioning mechanism for installation of shift selector | |
| CN101982370B (en) | Gear shifting device of miniature gearbox of bicycle | |
| CN102537323B (en) | Gear selecting and shifting mechanism of automotive transmission | |
| CN202987459U (en) | Variable-speed control mechanism for motorcycle | |
| CN101979273B (en) | Bicycle with miniature box transmission on middle axle | |
| CN2395524Y (en) | Main and auxiliary speed variator for driving bridge of harvester | |
| CN206679187U (en) | A kind of straight line tramples single-wheel and directly drives speed changer | |
| CN201882224U (en) | Bicycle with micro box type transmission | |
| CN216200426U (en) | Gear shifting fork structure for self-locking gears |
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 |