CN102991637A

CN102991637A - Easily-stepped gravity-driven high-speed bike

Info

Publication number: CN102991637A
Application number: CN201210465579XA
Authority: CN
Inventors: 袁海洋; 袁海江; 袁梧伦
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-11-19
Filing date: 2012-11-19
Publication date: 2013-03-27

Abstract

The invention relates to an easily-stepped gravity-driven high-speed bike, and aims to solve the technical problem that a person feels very laborious when riding the conventional bike at a high speed. By adopting the easily-stepped gravity-driven high-speed bike, the gravity of a rider is used, wherein a fixed sleeve, a pressing-assistant planar pressure bearing and a planar pressure bearing pressing-assistant 'tower-shaped worm' are arranged on a horizontal level of which one end is provided with a fixed rotating shaft, and are sleeved on a vertical transmission shaft; the tower-shaped worm and the vertical transmission shaft are arranged in the radial direction to form a sliding fit; the tower-shaped worm is meshed with a worm wheel through the rolling of roll balls which are embedded in helical teeth of the tower-shaped worm; and 80 percent of the rotation energy acquired by the worm wheel is transferred to a rear tire through mechanical transmission, and 20 percent of the rotation energy is fed back to the vertical transmission shaft to ensure that the vertical transmission shaft automatically maintains rotation. A pedal of the bike can be stepped on easily to make up the energy required by the automatic maintenance of the rotation of the vertical transmission shaft. The easily-stepped gravity-driven high-speed bike is simple in structure, easy to implement and low in manufacturing cost, and can completely convert the gravity of a person into rotary moment.

Description

The people is easily pedaled the gravity-driven high-speed bicycle

Technical field

The present invention relates to a kind of bicycle, particularly relate to a kind of people and easily pedal the gravity-driven high-speed bicycle.

Background technology

Existing bicycle (comprising conventional bicycle, variable speed bicycle etc.) all is that single pedal drives, but can not utilize fully continuously the cyclist gravity, increase propulsive effort, especially propulsive effort is variable force rather than constant force.

Summary of the invention

The object of the invention is to overcome the defects of prior art, provides a kind of and cyclist's gravity all can be changed into continuously, propulsive effort consistently, and making the propulsive effort work done is the constant force work done, reduces cyclist's physical demands.

For achieving the above object, the car that the inventor is easily pedaled the gravity-driven high-speed bicycle is pedaled the cripple and is packed on the axis, axis is fixed with the wheel upsetting that surmounts runner simultaneously, surmounts " counter gnawing " crankshaft jaw in the wheel upsetting of runner, can gnaw to close the hub that surmounts runner (the axis conter clockwise turns, then gnaws and close; The axis up time turns, and does not then gnaw and closes), and master bevel gear and head sprocket connect firmly side by side surmounting on the hub of runner simultaneously.Master bevel gear engagement is packed in central authorities, and ball is arranged is the most secondary bevel gear of below of the vertical turning cylinder of key, vertically the transmission shaft upper and lower is but supported by the bearing that is fixedly mounted with, and " handstand " be similar to round platform the turriform worm screw, be sleeved on vertical transmission shaft centre, and form sliding joining take ball as feather key with it at vertical transmission shaft.When so the design cyclist drives to advance, thereby make pedal and turriform worm screw rotation coordinated and synchronous, guarantee turriform worm screw and secondary bevel gear with identical cireular frequency to same direction rotation, simultaneously, also guarantee to be sleeved on the turriform worm screw on the vertical transmission shaft, can only endwisely slipping along vertical transmission shaft.

As optimization, when car is pedaled the cripple and is rotated forward (being conter clockwise), surmount " counter gnawing " crankshaft jaw in the wheel upsetting of runner, with regard to interlock hub together forward rotation (being conter clockwise), so be solidly set on also left-hand revolution of main chute tooth on the hub and head sprocket, then drive with the conjuncted vertical transmission shaft of secondary umbrella tooth on the rotation of turriform worm screw.So design has then realized bicycle in sliding, and the pedal cripple is motionless, and the pedal cripple is when rotating backward (being cw), does not affect the bicycle purpose of advancing.

As optimization, be sleeved on the turriform worm screw on the vertical transmission shaft that two ends are connected firmly by bearing, axially " ball groove " arranged on the surface, its symmetrical center line hole (being axial bore), it topmost and with ball on vertical transmission shaft lip-deep " ball axial notch " lower end is complementary, and forms vertically sliding joining.Design like this, turriform worm screw can endwisely slip at vertical transmission shaft, simultaneously again can be with equidirectional with cireular frequency and vertical transmission shaft synchronous rotary.

As optimize, be sleeved on the vertical transmission shaft that two ends are connected firmly by bearing, axially upper the downslide altered the ground level pressure bearing, its lower surface pressing aid is (being the large bottom surface of round platform) on turriform worm screw upper bottom surface, and the upper surface of applanation bearing is sleeved on vertically, the transmission shaft top, and the slide cartridge that has the horizon bar central authorities of fixed rotating shaft " T " font lever to connect firmly with an end comes pressing aid.So design, power straight down by horizontal lever around fixed rotating shaft move down (as gravity, and the downward gravitation of direction, repulsion, thrust, pulling force, squeeze the effects such as power, pressure), just can easy to doly pass to the turriform worm screw that is sleeved on the vertical transmission shaft.

As optimization, round platform turriform worm screw around spiral tooth (be screw inclined plane projection) below on, panel 1/3 row that expose down can free circulating ball, head and the tail ball about it on different pitch, by the turriform worm screw of suit and the intercommunicating pore of vertical drive shaft body inside, form circulating path.So design, the turriform worm screw around the spiral tooth real be down ball panel groove, its head and the tail are communicated with respectively symmetrical through hole in the turriform worm body, and symmetrical through hole communicates with horizontal open-work on the vertical transmission shaft in the turriform worm body, so cyclic track in the formation ball, spiral tooth on turriform worm screw below ball grooves down is the outer circulation track of ball in a word, join end to end with cyclic track in the ball in the turriform worm body, having consisted of the swinging ball freely circulates, this shows, obtain the ball of the downward pressure of turriform worm screw, in the circulating rolling mode, when going to drive worm gear, but greatly reduce between the turriform worm and wheel, friction drag in engagement process has reached the purpose that improves mechanical efficiency.

Described turriform worm screw is shaped as the turriform that is similar to round platform, its neighbouring pitch varies in size, so design, if the turriform worm screw is under propulsive effort (being driving torque) effect, then occur around vertical transmission shaft rotation, be subject to again simultaneously the applanation bearing downward pressure of coaxial upper suit, the turriform worm screw might as well not only be rotated but also move down, by the ball that can freely circulate, remove to mesh worm gear, so at least 2 dystopy point of engagement (be neighbouring turriform worm screw around the ball of spiral tooth upper mounting clamp) are arranged surely, thereby the lead angle and the angle of obliquity that have occurred a plurality of diverse locations of synchronization at worm gear, prevented that the turriform worm screw is on vertical power wheel, downward play, the turriform worm screw can only only have the ground of downslide trend at vertical transmission shaft, turriform worm screw " between two parties " particularly, the front and back symmetry is meshing two worm gears, the angle of obliquity of point of engagement on a plurality of diverse locations of synchronization and the formation of lead angle have more been guaranteed, especially freely circularly revolution of ball, back lash between more firm turriform worm and wheel. namely prevented the turriform worm screw because moving down " stuck " worm gear along vertical transmission shaft, so transmission is more stable.

Adopt rotatably the round platform turriform worm spiral tooth panel rotating ball that can freely circulate, push the type of drive of pressing aid worm gear, can will be straight down or the static(al) of the static(al) of upwards effect (such as the power of attractive force, repulsion, push-and-pull extruding etc.) or other direction, be applied to and be sleeved on it the vertical transmission shaft applanation bearing, pass to again the turriform worm screw that is forced to rotate, just can change into rotating torque, this mechanism assembly, extremely simple possible.

Described main worm-wheel shaft is fixed with main gear and minor sprocket, main gear goes engagement to surmount gear, and (gear teeth cw that surmounts gear turns, by the startup pawl in the wheel upsetting that surmounts gear, gnaw and close the gear teeth inner casing that surmounts gear, making it to take turns upsetting also clockwise rotates, and the gear teeth inner casing that surmounts gear then surmounts the startup pawl in the gear upsetting when rotating counterclockwise, and but not interlock surmounts the gear teeth inner casing of gear.Initiatively turn to conter clockwise if but surmount the wheel upsetting of gear, the gear teeth that then surmount gear do not turn.If surmounting the wheel upsetting of gear initiatively turns to cw, the gear teeth that then surmount gear also turn to cw thereupon) the gear teeth, if surmount the gear teeth of gear to clockwise rotating (being that bicycle advances), the wheel upsetting that then surmounts gear, just by surmounting the startup pawl in the upsetting of gear wheel, rotate to clockwise direction passively, the mesomerism gear that is fixedly mounted with on the wheel upsetting axle that surmounts gear also clockwise rotates thereupon, remove to mesh ring gear, and be packed in driven sprocket arranged side by side on the passive tooth wheel shaft and hinge wheel also rotates counterclockwise thereupon, hinge wheel is by secondary chain drive " dead sprocket wheel " left-hand revolution, the bicycle rear tire that is packed on " dead sprocket wheel " axle also advances thereupon left-hand revolution, meanwhile, the turriform worm screw is the Meshing Pair worm gear also, make it to clockwise rotate, the little auxiliary chain wheel that is packed on the secondary worm-wheel shaft also clockwise rotates thereupon, so the pressure of pushing of turriform worm screw is passed to it intermediary's chain, make it intermediary's chain and clockwise rotate, then drive the minor sprocket that is fixedly mounted with on the main worm-wheel shaft and clockwise rotate (because little pair of sprocket wheel is outside interlock at intermediary's chain).So design, cyclist's gravity by being forced to rotatably turriform worm screw assembly, just changes into the propulsive effort that bicycle advances.

The described driven sprocket that is packed on the ring gear axle body, remove stranded head sprocket by main chain, make it thereupon clickwise of head sprocket, because head sprocket and master bevel gear are packed on the hub that surmounts runner side by side, so surmounting hub and the master bevel gear of runner also clockwise rotates thereupon, but because the startup pawl that surmounts runner is gnawed for counter, so surmounting the wheel upsetting of runner does not rotate, simultaneously do not rotate (being that the pedal cripple is motionless) with the conjuncted bicycle middle shaft of the wheel upsetting that surmounts runner yet, and secondary bevel gear be clockwise ground master bevel gear mesh, so secondary umbrella tooth (seeing from top to bottom) is left-hand revolution then, then vertically transmission shaft conter clockwise (the seeing from top to bottom) rotation of having to, and the turriform worm screw is forced to thereupon (seeing from top to bottom) left-hand revolution.Then the major-minor worm gear that pushes both sides downwards makes it rotation.As seen, this above-mentioned mechanical drive is real is the mechanical feedback system, especially bicycle is during starts, as long as the bicycle rear tire moves forward, dead sprocket wheel just drives secondary chain, make it passive tooth wheel shaft left-hand revolution, then start mechanical feedback system, force the rotation of turriform worm screw, but owing to surmount gear function, but stoped " dead sprocket wheel conter clockwise " to rotate transferring energy, expanded to main worm gear.So design, bicycle is (being that the people walks one's bicycle or the people has just set foot on bicycle pedal but also do not ride) in starting, turriform worm gear assembly (worm screw, worm gear, applanation bearing and transmission shaft) and mechanical feedback system are all in action, and formed " self-sustaining " state, especially bicycle is in the high speed slide process, and people's gravity is always power.

Described be packed in the wheel upsetting that surmounts runner on the pedal of axis, by surmounting the startup pawl in the wheel upsetting in the web, the anti-hub that surmounts runner of gnawing in time replenishes the energy shortage that the mechanical feedback system transmits.(according to the spiral rolling frictional theory as can be known, drive turriform worm screw rotary torque power, be apply turriform worm screw pressure 1/20～1/30), so design cyclist's as can be known the application of force, just induce the bicycle bait that advances, but turriform worm screw rotation " self-sustaining ", to be realized by the mechanical feedback system, its energy but is the rotating torque sub-fraction that cyclist's gravity transforms, and is that the turriform worm screw is forced to rotate main source.Therefore gravity-driven high-speed bicycle, person sense are easily.

Principal feature

1, energy-conserving and environment-protective, normal speed per hour be 40km/h at least

2, moment of torsion is large, and the people is very laborsaving during high speed

3, during high speed, the cyclist is as normally light by bike, even the people need not be to pedal

4, normally travel, a people rides and is equivalent to a plurality of people and pedals

5, by regulating the front and back position of vehicle seat on horizontal lever, the moment of torsion when the changeable bicycle advances

6, the people is easily pedaled the gravity-driven high-speed bicycle because of structural limitations, but can not significantly retreat.

Adopt technique scheme, round platform turriform worm screw assembly of the present invention, easily trigger to pedal the rotation of turriform worm screw by mechanical feedback system acting and in good time people, cyclist's gravity can be utilized fully, and change into rotating torque, not only simple in structure, and easily implement, make simultaneously bicycle in high speed long-distance running process, person sense is comfortable and not tired out.But it can replace conventional bicycle, variable speed bicycle, storage battery Electrical Bicycle, motor bike, type mine-size automobile.

Description of drawings

Fig. 1 is that the people is easily pedaled gravity-driven high-speed bicycle structure scheme drawing

Fig. 2 is similar to round platform turriform worm structure scheme drawing

Fig. 3 is applanation bearing arrangement scheme drawing.

The parts of each mark representative are called among Fig. 1:

The similar round platform of 1-" turriform worm screw "

2-applanation bearing

Be fixedly mounted with the little auxiliary chain wheel 35-of the secondary worm gear 32-main gear 33-minor sprocket 34-of the bearing 31-sprocket wheel 37-of chain 36-intermediary of intermediary mesomerism gear 38-on 3-master's worm gear 30-worm-wheel shaft and surmount gear 39-ring gear

4 one is that the slide cartridge 43-that an end has fixed rotating shaft " T " font lever 41-vehicle seat 42-to be packed in " T " word lever horizon bar central authorities locates fixedly chute 44-fixed rotating shaft

Be fixedly mounted with bearing on the secondary chain 52-of the rear tyre 51-hinge wheel 53-passive tooth wheel shaft of " dead sprocket wheel " 50-bicycle that 5-and bicycle rear tire are conjuncted

The vertical transmission shaft upper and lower of the vertical transmission shaft 60-of 6-is fixedly mounted with the vertical transmission shaft centre of the secondary bevel gear 62-of bearing 61-ball spout 63-master bevel gear 64-and surmounts runner 65-head sprocket 66-pedal cripple 67-stretcher 68-main chain 69-driven sprocket

The 7-bicycle middle shaft

The specific embodiment

Embodiment one, and as shown in the figure, the inventor is easily pedaled the gravity-driven high-speed bicycle and comprised cyclist's gravity drive system, and turriform worm screw assembly and mechanical feedback system and people's power-assisted inducible system.

Cyclist's gravity drive system comprises that vehicle seat 41 conjuncted ends are fixed rotating shaft 44 " T " font levers 4, the horizon bar central authorities of " T " word lever are connecting firmly vertically slide cartridge 42, the vertical bar below of " T " word bar, but there is fixedly chute 43 locate, and vertical transmission shaft 6 tops that two ends had fixed type bearing 60 to locate about vertically slide cartridge 42 was sleeved on, and pressing aid is sleeved on the perpendicular 8 applanation bearings 2 that direct transfer on the moving axis 6, applanation bearing 2 but pressing aid is sleeved on it the vertical transmission shaft 6 centre

turriform worm screws

1, and 1/2 high " ball 17 chutes 16 " are arranged at turriform worm screw 1 axial bore (vertically hole) bottom, surface " from bottom to top ", and this chute 16 forms vertically sliding joining with 1/2 " ball " 17 that is exposed to vertical transmission shaft 6 surfaces that have of vertical 62 panels of axial ball 17 grooves of transmission shaft 6 centre.Owing to have 1/3 ball 14 to expose around spiral tooth 13 belows institute panel on the turriform worm screw 1, and the ball 14 that exposes is all towards the below, but the face that the concaves cog of roll extrusion master worm gear 3 and secondary worm gear 31.Turriform worm screw assembly comprises and is sleeved on vertical transmission shaft 6 central turriform worm screws 1, and surperficial being listed as around one of spiral tooth 13 belows institute panel can freely loop back tumbler pearl 14, with the main worm gear 3 of living apart and being engaged with in turriform worm screw 1 both sides, pair worm gear 31 mechanical feedback systems comprise two parallel institutions, " the dead sprocket wheel " 5 that first bicycle rear tire 50 is conjuncted, dead sprocket wheel 5 stranded secondary chains 51, secondary chain 51 stranded hinge wheels 52, hinge wheel 52 is packed on ring gear 39 axles, ring gear 39 axle two ends but have bearing 53 to connect firmly, driven sprocket 69 is packed on ring gear 39 axles, and stranded main chain 68, main chain 68 but drives head sprocket 65, head sprocket 65 is solidly set on the hub that surmounts runner 64, master bevel gear 63 also is solidly set on the hub that surmounts runner 64, master bevel gear 63 Meshing Pair bevel wheel gears 61, secondary bevel gear 61 is packed in the below of vertical transmission shaft 6, vertically transmission shaft 6 upper and lowers all have bearing 60 to connect firmly, turriform worm screw 1 passes through separately with vertical transmission shaft 6, and the ball 17 of

ball grooves

62,16 common panels forms sliding joining.It two is that ring gear 39 obtains ground moment of rotation sub-fraction, by being packed in the driven sprocket 69 on ring gear 39 axles, pass to main chain 68, main chain 68 stranded head sprockets 65, head sprocket 65 is packed in and surmounts on runner 64 hubs, and be packed in the master bevel gear 63 that surmounts on runner 64 hubs, but the Meshing Pair bevel gear 61, secondary bevel gear 61 is packed in below of vertical transmission shaft 6, vertically transmission shaft 6 upper and lowers but have bearing 60 to be fixedly mounted with, turriform worm screw 1 axial bore 12 surperficial ball grooves 16, with ball grooves 62 on vertical transmission shaft 6 central surfaces, form vertically sliding joining by ball 17.

People's power-assisted inducible system comprises pin cripple 44, one end is connecting firmly stretcher 67, the other end is packed on the bicycle middle shaft 7, be solidly set on the axis 7 " counter gnawing ' the wheel upsetting that surmounts runner 64; surmount the hub of runner 64 and the wheel upsetting that surmounts runner 64; start pawl by " counter gnawing " in the wheel upsetting; carry out interlock; surmount on the hub of runner 64 parallel connection and admittedly overlapping head sprocket 65 and master bevel gear 63; master bevel gear 63 Meshing Pair bevel gears 61, because secondary bevel gear 61 is packed in vertical turning cylinder 6 belows, vertically transmission shaft 6 and turriform worm screw 1, by each

self ball grooves

62 and 16, the ball 17 of common panel forms sliding joining.

Embodiment two, as shown in Figure 2, the inventor is easily pedaled the turriform worm screw 1 in the gravity-driven high-speed bicycle, on the different pitch of outside face around spiral tooth 13 belows inlaying one and show 1/3 and expose downwards that (large bottom surface up, handle faces down) ball 14, and around spiral tooth 13 topmost and the ball 14 of going up bottom, by " ball channel " inner ball 15 in turriform worm screw 1 body, form row sealings " ball string ", and " ball string " can circulate freely.Exist from bottom to top the ball grooves 16. of 1/2 height (the large bottom surface of round platform, up, little bottom surface below) on its axial bore 12 surfaces

Embodiment three, represent such as Fig. 3, the inventor is easily pedaled the applanation bearing 2 in the gravity-driven high-speed bicycle, its shape is " annular solid ", it is made of loam cake 27 and base 25, loam cake 27 is with two conjuncted " ears " 22 of symmetry, and there are all ball 24 grooves base 25 outside faces top.Loam cake 27 and base 25 are held crowded by the ball of the common panel of annular ball grooves in the body separately, and loam cake 27 does not contact with base 25, but 1/3 ball 24 by institute's panel in loam cake 27 monosymmetric " ear " 22 holes, and ball 24 other 1/3, but panel is above base 25 in the annular ball grooves 26, and remaining 1/3 neither contacts ball 24 with " ear " 22 of loam cake 27, does not give again base 25 contacts, the endoporus 21 of applanation bearing 2 but is sleeved on it the vertical transmission shaft 6.In bolt 23 screw-in loam cakes " ear " 22 holes, for location ball 24.

Supplemental instruction

1, the people is pedaled pin cripple 66 power, only acts on turriform worm screw 1 rotation, but can not pass through hinge wheel 65, and main chain 68 passes to bicycle rear tire 50 (be not that normally surmount runner former because surmounting runner 64)

2, the power majority that transforms of cyclist's gravity is to drive bicycle to advance, and " auxiliary section " is used for mechanical feedback and rotates to the turriform worm screw.

3, people's gravity changes into rotating torque, be the mechanical feedback system time carry out or the time and under people's the to pedal action, make it turriform worm screw 1 rotation and come the driving device driving system to realize.

Claims

1. a people is easily pedaled the gravity-driven high-speed bicycle, it is characterized in that with on the bicycle saddle cyclist's gravity by being similar to " handstand " round platform turriform worm screw assembly, is translated into rotating torque.

2. described people is easily pedaled the gravity-driven high-speed bicycle according to claim 1, it is characterized in that cyclist's gravity is by connecting firmly horizon bar centre slide cartridge on below-seat " T " font lever, and slide cartridge is sleeved on the vertical transmission shaft top that two ends are fixedly mounted with by bearing, come pressing aid to be sleeved on the applanation bearing of vertical transmission shaft top, applanation bearing pressing aid is sleeved on vertical transmission shaft centre " handstand " round platform turriform worm screw, turriform worm screw axial bore consists of vertically sliding joining with the vertical transmission shaft that is set with, and control take " ball " as key, turriform worm screw " back-off " is with it the main worm gear and secondary worm gear of separation self both sides, and the turriform worm screw removes to mesh two worm gears, causes cyclist's gravity to be passed on the two worm gear teeth.Two worm gears are packed in respectively on separately the worm-wheel shaft, and two ends are fixedly mounted with by bearing.

3. easily pedal the gravity-driven high-speed bicycle with 2 described people according to claim 1, it is characterized in that described main worm-wheel shaft, be fixed with main gear in parallel and minor sprocket.The main gear engagement surmounts gear, and the wheel upsetting that surmounts gear is packed in and surmounts on the gear wheel shaft, and mesomerism gear is packed in and surmounts on the gear wheel shaft, remove to mesh ring gear, and ring gear is packed on the passive tooth wheel shaft, and passive tooth wheel shaft two ends are packed on the bearing.Parallel connection is packed in hinge wheel and driven sprocket on the passive tooth wheel shaft, and hinge wheel removes stranded dead sprocket wheel by secondary chain, and dead sprocket wheel and bicycle rear tire are conjuncted.

4. described people is easily pedaled the gravity-driven high-speed bicycle according to claim 3, it is characterized in that being packed in driven sprocket on the passive tooth wheel shaft, remove stranded head sprocket by main chain, head sprocket and master bevel gear parallel connection are packed on the hub that surmounts runner, and the wheel upsetting that surmounts runner is packed on the bicycle middle shaft.Master bevel gear goes to mesh and is packed in the most secondary bevel gear of below of vertical transmission shaft, is sleeved on the turriform worm screw of vertical transmission shaft central authorities and consists of vertically sliding joining with vertical transmission shaft take ball as feather key.

5. easily pedal the gravity-driven high-speed bicycle with 2 and 3 described people according to claim 1, it is characterized in that secondary worm gear is packed on the secondary worm-wheel shaft, and be fixedly mounted with by bearings at both ends, and be packed in little auxiliary chain wheel on the secondary worm-wheel shaft, remove intermediary's sprocket wheel on intermediary's sprocket shaft that " outer stranded " two ends are fixedly mounted with by bearing and intermediary's chain of the common interlock of minor sprocket, and minor sprocket and little auxiliary chain wheel identical (as the number of teeth with, modulus with).

6. easily pedal the gravity-driven high-speed bicycle with 4 described people according to claim 1, it is characterized in that being packed in the wheel upsetting that surmounts runner on the bicycle middle shaft, startup pawl by " counter gnawing " " differential ", go to gnaw and close the hub that surmounts runner, head sprocket and master bevel gear parallel connection are packed in " differential is counter to be gnawed " and surmount on the hub of runner.

7. easily pedal the gravity-driven high-speed bicycle with 6 described people according to claim 1, it is characterized in that being fixedly mounted with the pedal on the bicycle middle shaft outer end, surmount runner by " differential ", power is passed to vertical transmission shaft.

8. described people is easily pedaled the gravity-driven high-speed bicycle according to claim 1, it is characterized in that the turriform worm screw one around spiral tooth upper mounting clamp and is listed as 1/3 ball that exposes that can freely circulate, and communicate with linked hole in the body around the head and the tail of the ball grooves of institute's panel on the spiral tooth.

9. easily pedal the gravity-driven high-speed bicycle with 2 described people according to claim 1, it is characterized in that the applanation bearing, loam cake does not contact mutually with base, and by one row annular ball support with two the location balls control.