34results about How to "Ride fast" patented technology

The invention relates to a stepping type no-chain no-middle-axle infinitely-variable-speed folding bicycle. The stepping type no-chain no-middle-axle infinitely-variable-speed folding bicycle is characterized in that a hollow shaft, one-way bearings, gears, crank telescopic rods and the like are used for replacing an middle shaft, cranks, crank discs, a chain, flywheels, a variable speed device and the like of a bicycle in the prior art, and are arranged in composite wheel hubs, and whole close of wheels and shaft transmission parts is formed. According to the stepping type no-chain no-middle-axle infinitely-variable-speed folding bicycle disclosed by the invention, the driving form, the transmission mode, the speed change method, the appearance style and the folding situation of the bicycle throughout history are changed, and common steering of a front wheel and a rear wheel is adopted, namely that the circular pedaling driving type of the bicycle is changed into a stepping type; chain transmission or transmission shaft transmission is changed into gear transmission; the speed change through adjusting gear ratio is changed into the infinitely-variable speed change through extending (or contracting) crank rods; the functions of the middle shaft are achieved by a front shaft concurrently, and the middle shaft manner of the bicycle is omitted; and the front wheel steering is changed into the common steering of the front wheel and the rear wheel, and internal rotation and folding of the front wheel and the rear wheel are realized.

The invention relates to a floor climbing and flat ground dual-purpose bicycle which is characterized by being composed of a frame, a seat saddle, a damping spring, a front wheel, a back wheel, a bicycle chain, a hand brake and a pedal mechanism. Each wheel is composed of a brake disc, a center disc, a center gear, four planet gears and four arc wheel blades, each arc wheel blade and the corresponding planet gear are installed on the center disc through a hinge in a connected mode, a limiting groove is formed in each center disc, the two ends of the limiting grooves are respectively provided with a concave limiting hole, and a limiting spring and a limiting ball are arranged on each center gear. The arc wheel blades rotate around the hinges by a certain angle to enable circular wheels to be converted into impellers, rims of the impellers approach a floor climbing Archimedes helical line corresponding to stair sizes, and floor climbing is accordingly achieved. Compared with other bicycles, the floor climbing and flat ground dual-purpose bicycle has the advantages of being capable of easily and rapidly running on stairs, enabling floor climbing to be safe and increasing riding enjoyment, and can be used for a novel bicycle floor climbing athletics object.

The invention relates to the field of bicycles, and in particular relates to an assembling method of a universal-joint-steering and hand-foot-combining type bicycle capable of being ridden with one foot. The method involves a front wheel, a front wheel fork frame, a rear wheel, a support body, a seat saddle assembly, a steering handle, paired chain wheels and a rear wheel fork frame. The method is characterized by comprising the following six steps: assembling an universal joint part, the front wheel fork frame and the steering handle; assembling a boosting swinging rod, a boosting sliding sleeve and a boosting connecting rod; assembling a support spindle, a support spindle hole and the paired chain wheels; assembling pedaling hinge pins, the boosting connecting rod and a pulling rod swinging fork; assembling the support body and the rear wheel fork frame; and assembling the support body and the seat saddle assembly. According to the method, the universal joint assembly, the booting sliding sleeve, the boosting swinging rod and the boosting connecting rod are additionally arranged, so that two hands act together; a seat cross swinging rod and the pulling rod swinging fork are additionally arranged, so that the limitation that two pedaling plates of a general bicycle are differed by 180 degrees is overcome, and that two feet apply force in turns is avoided, and the bicycle can be ridden with one foot.

The invention relates to an amphibious bicycle comprising a bicycle frame, a front fork, a seat saddle, a spigot, a front wheel, a rear wheel, a main chain wheel and a rudder arranged on the bicycle frame and behind the rear wheel, wherein an auxiliary chain wheel is arranged between the main chain wheel and the front wheel and is connected with the main chain wheel by a chain, and a detachable quick-remove foot crutch is arranged on the main chain wheel or the auxiliary chain wheel; a detachable front air chamber is respectively arranged on both sides of the front wheel, and a dismountable rear air chamber is respectively arranged on each of both sides of the rear wheel; and the rim of the rear wheel is provided with a dismountable horseshoe paddle board. The amphibious bicycle is not only applicable for transition and amphibious work in rivers, lakes, reservoirs and on nearby islands, and is a competent transportation tool for workers of culture fishery and water operation and fieldworkers.

The invention discloses an intelligent suspension fork locking device. The intelligent suspension fork locking device comprises a control motor mounted on a front fork and capable of twisting a front fork lock, and a controller and a slope sensor mounted on a bicycle, wherein a microprocessor is arranged in the controller; and the control motor and the slope sensor are both electrically connected with the microprocessor. The controller of the intelligent suspension fork locking device can automatically adjust the dead locking state of a suspension fork according to the slope detected by the slope sensor, so that the intelligent state is high; and the parking is not needed, so that the bicycle can begin the climbing under the condition of keeping a certain initial velocity, the physical power is reduced as far as possible, and the bicycle riding speed is quickened.

A slide-track direct pedal bicycle consists of a bicycle rack, a beam, a handlebar, a front fork, a front wheel, a back wheel, slide tracks, driving chains, a middle shaft and transmission chains; wherein, either side of the beam is provided with a segment of slide track; two pedals are arranged on a slide block of the slide tracks and make linear movement on the slide tracks; the middle shaft is provided with two flywheels and a fixed chain gear which is fixed with the middle shaft, and the two flywheels are respectively sleeved with a driving chain which is connected with the pedals through two segments of steel ropes; the fixed chain gear is connected with a back flywheel through chains; the bicycle rack and the beam are fixed, and the front wheel is arranged under the beam, thus constructing a bicycle with a backrest supine sitting position according to different inclination angles of saddles.

A bicycle comprises a frame, a front wheel, a rear wheel, foot rest levers, a direction lever and a saddle, and is characterized in that the foot rest levers are arranged on two sides of the frame; a foot rest is arranged at one end of each foot rest lever, and an arc toothed bar with a hole of an axle coupled with the foot rest levers and the frame serving as a central point is arranged at the other end of each foot rest bar; gears which have ratchets and are meshed with the arc toothed bars are arranged on two sides of the rear wheel respectively; and reset devices are arranged on the foot rest levers. The bicycle has the advantages that a rider is only required to downward step the foot rests arranged on the foot rest levers, the other end, provided with the arc toothed bar, of each foot rest lever is upward warped, the arc toothed bars drive the gears having the ratchets and the rear wheel to rotate, then the bicycle is driven to move forward, the rider can easily ride the bicycle, and the efficiency is higher.

A slide direct pedal bicycle is made up of the frame, ream, handlebar, the front fork, the front wheel, the back axis, the back wheel, the slide track, the driving chain, the middle axis and the transmission chain. The slide track is installed on the both sides of the beam, the two foot petals are installed on the slide mass of the slide track which do the linear motion on the slide track. The middle axis has two flywheel and fixed chain gear fixed on the axis skin. The flywheel is covered with the driving chain connected to the slide mass and the fixed chain gear is connected with the back flywheel by the chain. The frame is fixed with the beam according to the different gradient to form the backrest supine bicycle.

The invention relates to the field of bicycles. A parallelogram steering mechanism hands-assisted chrome alloy bicycle includes a steering handlebar, a steering sleeve, a front fork horizontal shaft, a front wheel axle frame, a front wheel assembly, a rear wheel assembly, a rear fork swing frame, Frame components, paired sprockets, transmission chains and gravity seats, as well as steering steel shafts, power-assisted linkages, tension forks and power-assisted swing rods, coaxial symmetrical square shafts are symmetrically arranged under the steering handlebars, and the upper ends of the front wheel shaft brackets are connected There is a front fork horizontal shaft, and two steering steel shafts are movable and fixed between the front fork horizontal shaft and the coaxial symmetrical square shaft to realize the synchronous swing of the steering handlebar and the front wheel axle frame, which solves the problem of bicycle steering; the coaxial symmetry The axis line of the square shaft is at the same height as the shaft center line of the pivot pin of the swing rod. When the steering handlebar swings back and forth, the power-assisted swing rod is driven to swing back and forth synchronously centered on the through hole of the support. The hole is pivoted in situ at the center, and the distance between the coaxial symmetric square axis and the front fork transverse axis remains constant.

The invention discloses a lever-type double-drive bicycle which comprises a steering wheel arranged in the front of a frame, a drive wheel arranged on the rear portion of the frame and a power transmission mechanism for the drive wheel. The drive wheel comprises a front drive wheel body and a rear drive wheel body which are arranged in a front-rear mode. A wheel shaft of the front drive wheel body and a wheel shaft of the rear drive wheel body on the two sides of the frame are provided with flywheels respectively. The power transmission mechanism comprises foot bars arranged on the two sides of the frame respectively. The rear end of the foot bar on one side is meshed with the flywheel on the same side of the rear drive wheel body through a gear ring. Arc-shaped racks arranged on rod bodies of the foot bars are meshed with the flywheels on the same side of the front drive wheel body. The front ends of the foot bars are provided with pedals. The left foot bar and the right foot bar are pulled through a suspended rope on the frame. According to the lever-type double-drive bicycle, a double-drive mechanism is adopted, when the pedals are treaded with feet alternately, the racks and the gear rings on the foot bars drive the front drive wheel body and the rear drive wheel body at the same time, double parts of power are obtained, and the purposes of high riding speed and saving physical power are achieved.

This invention has disclosed one kind of device that cannot only guarantees the speed and also reduces centrifugal acceleration of the diameter of large gear dish and the main shaft of a bicycle which is installed in the Big Five Through of a bicycle. The device includes the main shaft, case body, and end cover, the end cover links with one end of the case body while another end of the case body has an external thread links to the lock internal thread. The main shaft goes through the case body and the end cover, and its two ends stretch out of the Big Five Through and is respectively fixed with left and right cranks. Its characteristic is that the axis line of the main shaft is setovered one side of the case body axis line; the shaft is fixed a big initial gear and an output gear sheath, the big initial gear rotates together with the main shaft, the output gear sheath winds the main shaft and revolves it. On the end of the case body there is a transmission gear, on the end out of the end cover there is the external thread linking with the sprocket. The big initial gear lies in the case body and meshes the secondary pinion that is installed in the case body, while the coaxial big secondary gear with the secondary pinion meshes the transmission gear on the output gear sheath.

The present invention relates to a rider's simultaneous use of his forearms / hands and legs to provide dual power into a propulsion system for riding a cycle vehicle, including a bicycle and a tricycle, or other vehicles. The invention permits the rider to have complete control turning the cycle vehicle, at will, right or left, while at the same time pumping a set of forearm / hand bars in an up power stroke and a down power stroke. In addition, even though the pumping action is lineally moving a telescoping rod and a push / pull cable back and forth, it is also simultaneously rotating a flywheel, upper and lower sprockets, and the crank axle to drive the bicycle wheel forward over the riding surface. Thus, the rider can provide maximum power into rotating the rear tire by simultaneously using both his arms and legs, while contemporaneously controlling his direction of travel.

The invention provides a back transmission device with the advantages that the structure is simple, and the defect of labor waste during the riding of an ordinary bicycle can be overcome, so the riding of the bicycle is labor-saving. A small chain wheel is arranged on a driving shaft in the transmission device, and is connected with a large chain wheel arranged on a driven shaft through a chain, the transmission ratio of the large chain wheel to the small chain wheel is about 1:1.5, and the small chain wheel is used for driving the large chain wheel to rotate, so the principle of output torque force increase of a speed reducing machine is realized. The transmission device is arranged on a bicycle frame, pedals and crank handles are arranged at the two ends of a driving shaft arranged inside the transmission device, a bicycle chain wheel is arranged at the outer end of the driven shaft and is connected with a flywheel through a bicycle chain, and the bicycle transmission running is completed, so the pedaling times and driving shaft rotating speed are respectively and properly increased and accelerated, and the increase of the output force of the bicycle chain wheel is realized, so the riding of the bicycle is labor-saving.

The invention discloses a rapid labor-saving bicycle. Chain wheels with the same diameters are installed at the two ends of a lengthened back shaft of the bicycle respectively, the position, between a front wheel and a back wheel, of a bicycle frame corner extends to the two sides to form wheel disc shafts, and wheel discs with the same diameters are installed on the wheel disc shafts respectively; the diameter of the wheel discs is 3 to 5 times that of the chain wheels, and a pedal is installed at the outer end of each wheel disc shaft through a foot crutch; a swing wheel with the diameter smaller than the distance between the two wheel discs is installed in the middle of the lower face supported through the wheel disc shafts through a lower support, two chains are fixed into wheel grooves on the two wheel discs through screws respectively, the chain wheels on the back side are wound with the middles of the chains in a sleeving manner, and the two chain wheels are each provided with a soft steel wire rope through screws in a fixed manner; the middles of the steel wire ropes are tensioned on the periphery of a lower semicircle of the swing wheel, and the two ends of the steel wire ropes are fixed into the wheel grooves of the wheel discs respectively. The rapid labor-saving bicycle has the beneficial effects that labor is saved during pedaling, the riding speed is high, the structure is simple, and the cost is low.

The invention provides a harmonic intermediate shaft transmission for a bicycle and relates to an intermediate shaft speed change mechanism for the bicycle. The harmonic intermediate shaft transmission is composed of an input crank, an output chain wheel, a harmonic reducer and a control mechanism. The input crank is in linkage with the harmonic reducer, a transmission route is selected through the control mechanism, and finally the output chain wheel is engaged with a chain, so that the bicycle is driven to move. By the adoption of the harmonic intermediate shaft transmission, people can change the speed faster, more reliably and more smoothly in the riding process, and compared with a traditional intermediate shaft transmission, the harmonic intermediate shaft transmission has the beneficial effects that the dead weight and the size are greatly reduced, and more choices and greater convenience are brought for design and transformation of the bicycle.

An amphibious bicycle, comprising a vehicle frame, a front fork, a seat saddle, a faucet, a front wheel, a rear wheel, a main sprocket and a rudder arranged on the vehicle frame behind the rear wheel, the distance between the main sprocket and the front wheel There is an auxiliary sprocket connected with it through a chain, and detachable quick-release pedals are provided on the main sprocket or the auxiliary sprocket; there are detachable front airbags on both sides of the front wheel, and detachable front airbags on both sides of the rear wheel. There is a detachable rear air bag; the rim of the rear wheel is equipped with a detachable horseshoe paddle board. The amphibious bicycle of the present invention is not only suitable for the transition of rivers, rivers, lakes, reservoirs, short-distance islands and amphibious work, but also is an effective means of transportation for aquaculture, underwater operations and field workers.

The invention discloses a lever-type double-drive bicycle, which comprises a steering wheel at the front, a driving wheel at the rear and a power transmission mechanism for the driving wheel on the vehicle frame. The driving wheel includes a front driving wheel and a rear Flywheels are respectively installed on the axles of the front and rear drive wheels on both sides of the frame; The ring meshes with the flywheel on the same side of the rear drive wheel, the arc-shaped rack set on the rod body of the pedal meshes with the flywheel on the same side of the front drive wheel, and the front end of the pedal is equipped with a pedal; the left and right pedals are suspended through the frame. rope pull. The invention adopts a double-drive mechanism. When alternately stepping on the pedals, the rack and the ring gear on the pedal simultaneously drive the front drive wheel and the rear drive wheel to obtain double power and achieve the purpose of fast riding and energy saving.

A bicycle comprises a frame, a front wheel, a rear wheel, foot rest levers, a direction lever and a saddle, and is characterized in that the foot rest levers are arranged on two sides of the frame; a foot rest is arranged at one end of each foot rest lever, and an arc toothed bar with a hole of an axle coupled with the foot rest levers and the frame serving as a central point is arranged at the other end of each foot rest bar; gears which have ratchets and are meshed with the arc toothed bars are arranged on two sides of the rear wheel respectively; and reset devices are arranged on the foot rest levers. The bicycle has the advantages that a rider is only required to downward step the foot rests arranged on the foot rest levers, the other end, provided with the arc toothed bar, of each foot rest lever is upward warped, the arc toothed bars drive the gears having the ratchets and the rear wheel to rotate, then the bicycle is driven to move forward, the rider can easily ride the bicycle, and the efficiency is higher.

The invention discloses a hydraulic booster type intelligent bicycle which comprises a frame and an accelerating chamber formed in one side of the frame and further comprises a high-pressure oil pumpand a transmission gear, wherein a front hub is arranged on the front part of the frame; a rear hub is arranged on the rear part of the frame; a rotation speed sensor is arranged at a middle positionof the rear hub; a transmission gear is arranged on one side of the rotation speed sensor; a supporting platform is arranged at the bottom of the accelerating chamber; a motor is arranged inside the accelerating chamber; the high-pressure oil pump comprises an oil pump shell, a reducer and a motor; the oil pump shell is connected with the reducer; the reducer is connected with the motor; the oil pump shell comprises a cylindrical shell and a square shell; the cylindrical shell is arranged above the square shell; a thread is formed in the inner wall of the cylindrical shell; the cylindrical shell comprises a circular tray; the cylindrical shell and the circular tray are connected by a plurality of supporting legs distributed uniformly; the transmission gear comprises a gear body; and a mechanism used for temporarily storing lubricants is arranged on the toothed groove surface and / or the wheel tooth side face of the gear body.

The invention discloses a bicycle double-rear-wheel linear pedaling device which comprises two linear pedaling parts and a transmission part. The linear pedaling parts are mounted on a bicycle frame and can move linearly on the same, each linear pedaling part comprises a pedaling portion and a transmission belt connected with the pedaling portion, one end of transmission belt is movably connected with the vehicle frame while the other end of the same is connected with the transmission part, the transmission part comprises a positioning device which comprises a left positioning frame, a right positioning frame and a middle positioning frame, an input component is arranged in the middle positioning frame and comprises an input shaft and two input wheels, the input wheels are connected with the transmission belt respectively, an output component is penetratingly arranged in the input shaft, and a planetary transmission sleeves the output component. Each pedal is an input source of pedaling force, so that the bicycle double-rear-wheel linear pedaling device is larger in pedaling force, high in transmission efficiency, compact in structure, thereby enabling quicker riding, and speed changing is realized through the transmission, so that riding is more labor-saving.

The invention provides a sand land bicycle. Bicycles commonly used by people are very difficult to ride on sand land such as desert and sea beaches. A rear wheel of the sand land bicycle is driven by a crawler track, two floating plates are used for replacing dynamic efficiency for a front wheel, the speed of a wheelbarrow is increased, and motion of the wheelbarrow is more abundant and diversified.

The invention discloses a racing type downhill bicycle tire. The racing type downhill bicycle tire is characterized in that the racing type downhill bicycle tire comprises a steel wire, bead filler, a tire body ply, a tire bead ply and a tread layer sequentially arranged from inside to outside; the steel wire sequentially winds to form a circle; the tire body ply is folded and overlapped and winds along the steel wire to form a circle; the tire bead ply is arranged on the periphery of the tire body ply; and the tread layer is arranged on the periphery of the tire bead ply. The racing type downhill bicycle tire has the beneficial effects that the bead filler and the tire bead ply are arranged for improving the rigidity of a tire lip and the tire bead; when a bicycle runs downhill, the deformation of the tire bead of the tire during running is reduced accordingly, the riding speed is higher, and the racing effect is achieved; and the downhill riding speed is greatly increased, the downhill riding safety is greatly improved, riding is more stable, a better racing rank can be better achieved, and the downhill high-speed pleasure can be provided for a rider.

The invention relates to a bicycle freewheel. The bicycle freewheel comprises a freewheel body. The freewheel body comprises a jacket, a fly core, a jack, a jack spring and a multi-layer rolling bearing. The fly core is embedded in a mounting hole of the jacket. External teeth used for connecting with a chain are uniformly distributed on the outer ring surface of the jacket, and ratchets are uniformly distributed on the inner ring surface of the jacket. The jack is hinged on the outer ring surface of the fly core, and meshed with the ratchets. The multi-layer rolling bearing comprises an inner-layer shaft sleeve, an outer-layer shaft sleeve and at least one layer of an intermediate shaft sleeve which is installed between the outer-layer shaft sleeve and the inner-layer shaft sleeve. A rolling element is installed between every two layers of the neighboring shaft sleeves, wherein the outer-layer shaft sleeve is embedded in the mounting hole of the fly core in a mode of the rotation along with the fly core. The provided freewheel is simple in structure. Compared with a common freewheel, the rotation speed is faster while the freewheel is used as a driven wheel, and the labor is savedmore while riding by a bicycle provided with the bicycle freewheel.

The invention discloses a racing type downhill bicycle tire. The racing type downhill bicycle tire is characterized in that the racing type downhill bicycle tire comprises a steel wire, bead filler, a tire body ply, a tire bead ply and a tread layer sequentially arranged from inside to outside; the steel wire sequentially winds to form a circle; the tire body ply is folded and overlapped and winds along the steel wire to form a circle; the tire bead ply is arranged on the periphery of the tire body ply; and the tread layer is arranged on the periphery of the tire bead ply. The racing type downhill bicycle tire has the beneficial effects that the bead filler and the tire bead ply are arranged for improving the rigidity of a tire lip and the tire bead; when a bicycle runs downhill, the deformation of the tire bead of the tire during running is reduced accordingly, the riding speed is higher, and the racing effect is achieved; and the downhill riding speed is greatly increased, the downhill riding safety is greatly improved, riding is more stable, a better racing rank can be better achieved, and the downhill high-speed pleasure can be provided for a rider.

The invention relates to the field of bicycles, and in particular relates to an assembling method of a universal-joint-steering and hand-foot-combining type bicycle capable of being ridden with one foot. The method involves a front wheel, a front wheel fork frame, a rear wheel, a support body, a seat saddle assembly, a steering handle, paired chain wheels and a rear wheel fork frame. The method is characterized by comprising the following six steps: assembling an universal joint part, the front wheel fork frame and the steering handle; assembling a boosting swinging rod, a boosting sliding sleeve and a boosting connecting rod; assembling a support spindle, a support spindle hole and the paired chain wheels; assembling pedaling hinge pins, the boosting connecting rod and a pulling rod swinging fork; assembling the support body and the rear wheel fork frame; and assembling the support body and the seat saddle assembly. According to the method, the universal joint assembly, the booting sliding sleeve, the boosting swinging rod and the boosting connecting rod are additionally arranged, so that two hands act together; a seat cross swinging rod and the pulling rod swinging fork are additionally arranged, so that the limitation that two pedaling plates of a general bicycle are differed by 180 degrees is overcome, and that two feet apply force in turns is avoided, and the bicycle can be ridden with one foot.

The invention relates to a streamline sunshade sail of an electrical bicycle, comprising two multi-direction supports 11 and 12 with telescopic rods, a pivoting support 3 of the telescopic rod and folding sunshade cloth 2. The multi-direction supports 11 and 12 and the pivoting support 3 are respectively connected with a rearview mirror and a luggage rack of the electrical bicycle to form a triangular shape; and the end part of the telescopic rod on the support is provided with an alligator clip for clamping the sunshade cloth 2 to form the streamline sunshade sail. The sunshade sail has the characteristics of simple structure, low cost, convenient carrying, low wind resistance in use and high security, and widens the use range of sunshade tools.

The invention discloses a spline connecting structure for a rear hub and a rear flywheel of a field bicycle, the field bicycle comprises the rear hub, a shaft rod and the rear flywheel, the shaft rod is sleeved with the rear hub and the rear flywheel, two ends of the shaft rod are fixed on a frame of the field bicycle through a left nut and a right nut, and the rear hub is connected with the rear flywheel through a spline. Through the spline connecting structure of the rear hub and the rear flywheel, problems that the rear hub and the rear flywheel in a bicycle in field bicycle training are slipped and are frequently replaced are effectively solved. The spline connecting structure of the rear hub and the rear flywheel can reduce the diameter of the rear flywheel and reduce the number of teeth of the rear flywheel, so that the speed ratio of the field bicycle is increased, the riding speed of the field bicycle is increased, and the weight of the field bicycle is reduced.

The invention discloses a multifunctional bicycle which is mainly composed of a bicycle body part, a brake part, a driving device, a caterpillar band part, a skiing and skating part and a propeller part. The multifunctional bicycle can be suitable for being ridden on multiple terrains such as a road, sand, a snowfield, an ice surface and a water surface by replacing different parts.

The invention provides a star wheel accelerating device and a star wheel vehicle. The star wheel accelerating device is composed of an inner gear ring wheel disc, a five-way star wheel frame and a coaxial driving wheel, the center of the five-way star wheel frame is a five-way part, three cantilevers forming 120-degree angles with one another are welded to the five-way part, the same star joint is welded to the top ends of the cantilevers, three same star wheels are installed on the star joint. A coaxial driving wheel is mounted on a star wheel shaft extending out of the other end of one star joint; the inner gear ring wheel disc is mounted on the middle shaft, so that the inner gear ring and the star wheel are aligned and meshed, and the star wheel acceleration device has an ultra-large speed-up ratio; the star wheel accelerating device is installed on a bicycle, a pedal generator car and various manpower machines, so that a star wheel car with an ultra-large speed-up ratio is formed, the riding speed of a miniature folding bicycle can be greatly increased, and the defect that the pedal riding function of an electric bicycle is lacked is overcome at one stroke; the invention has obvious technical progress and wide application value.