98results about How to "Effort-saving riding" patented technology

An environment protection type non-inflation polyurethane tyre is composed of the surface and hollow body of tyre, which is made up of antiwear elastic polyurethane rubber through pouring and centrifugal shaping, and the core consisting of 2-3 rubber tubes and more than two high-strength fibre cables or steel wire cables.

The invention discloses an intelligent bicycle. The intelligent bicycle is designed for the problems that the existing purely-power-assisted bicycle can still consume massive physical energy in long-distance riding and out-of-control accidents are easy to occur due to excessive kinetic energy instantaneously generated when the assisted power is started, and the potential safety hazards of excessively-high speed, easy misoperation of an accelerating rotary handle and difficult control due to overweight of the bicycle body in pure-electric vehicles. The intelligent bicycle disclosed by the invention has the beneficial effects that power-assisted riding and self-adaptive cruising function are realized on the basis of the traditional riding thoughts and riding modes of bicycles; in a self-adaptive cruising mode, if a foot pedal is stepped repeatedly, the speed is increased, and if the stepping is stopped, the current speed is kept for cruising; in a power-assisted mode, when the foot pedalis stepped, a CPU (Central Processing Unit) controls a motor to output assisted power, so that the stepping is easier and more labor-saving. in the two modes, when a braking handle is pressed, the speed reduction or stopping can be realized, the operation is completely consistent to that of common bicycles, so that the intelligent bicycle is suitable for various groups to ride safely; a riding indicator is designed on a bicycle basket, so that a rider can be convenient to watch the vehicle condition and the design and the weight of a bicycle body are simplified.

The invention discloses an effort-saving bicycle with a telescopic foot rest lever. The effort-saving bicycle is characterized in that an oval guide rail is installed on the outer left side and the outer right side of a chain wheel of a bicycle middle shaft, a linear bearing is installed on the outer side of the oval guide rail portions at the left end and the right end of the bicycle middle shaft, a linear guide rail foot rest lever is installed in a sliding groove of the linear bearing, a middle-rear section of the linear guide rail foot rest lever is located in the sliding groove of the linear bearing, a foot rest plate is installed at the front end of the foot rest lever, a shifting shaft is fixed to the middle-front portion of the linear guide rail foot rest lever, a shifting bearingis installed at the other end of the shifting shaft, the shifting shaft is located in a guiding groove of the oval guide rail, the shifting bearing rolls along the guiding groove of the oval guide rail, and the linear guide rail foot rest lever is driven to perform extensible motion through the shifting shaft. The effort-saving bicycle has the advantages that the effort-saving bicycle saves very much effort, can be ridden for a long time in a long-distance mode, especially has the more excellent mountain land climbing performance, makes movements, work and outgoing of people lower in carbon and more environmentally friendly, makes riding easier and saves effort in riding.

The invention relates to the technology of transportation vehicle, in particular to a novel lying type three wheel rickshaw which comprises a frame, a layback seat, a manual drive mechanism, a front wheel and a rear wheel; the frame comprises a front frame and a rear frame, the front end of the front frame is provided with the manual drive mechanism, the middle part thereof is provided with the front wheel and the tail thereof is flexibly connected with the rear frame to form a pair of rotators; the front frame is connected with a rotary handle, and the front wheel is transmitted with the manual drive mechanism by chains; the rear frame is connected with the layback seat, and the tail of the rear frame is mounted with the rear wheel. The layback type seat of the invention has large contact area with human body, adopts layback type hacking during riding, improves riding comfort, and the butt has landing points when hacking is carried out, therefore hacking is more powerful; the invention adopts the front wheel to drive, thus shortening the transmission distance of the chains and causing riding to be more powerful; the front frame and the rear frame are connected by a joint bearing, thus satisfying the requirement of flexible rotation and improving the centring effect of the front wheel; and the whole vehicle has low gravity, thus being beneficial for the stability of riding.

The invention discloses a middle driving device which comprises a shell, a motor arranged in the shell, a speed reducing mechanism, a middle shaft and a chain wheel device; the speed reducing mechanism is in transmission connection with the motor. The middle shaft is used for being connected with a treading device and is rotationally arranged in the shell; a first clutch is included, wherein One end of the first clutch is connected with the output end of the speed reducing mechanism, and the other end of the first clutch is connected with the chain wheel device; the first clutch has a transmission state and a disengagement state, and the chain wheel device is connected with the middle shaft through a second clutch so that the middle shaft can drive the chain whell device to rotate; in thepower-assisted working mode, the first clutch is in transmission connection with the output end of the speed reducing mechanism and the chain wheel device, so that the output end transmits power to the chain wheel device; and in the non-power-assisted working mode, the first clutch disconnects the output end of the speed reducing mechanism from the power of the chain wheel device. The middle driving device is more portable and labor-saving when people step on the bicycle. The invention further discloses a bicycle comprising the middle driving device.

The invention discloses a magnetism energy storage catapulting driving wheel. The magnetism energy storage catapulting driving wheel comprises a hub, a driving mechanism and a wheel hub fixedly connected with a car outer wheel. The wheel hub is movably installed on the hub. The driving mechanism comprises a plurality of driving permanent magnet assemblies which are fixed to the hub and sequentially arranged in a circumferential and spaced mode around the central axis of the hub and a plurality of driven permanent magnet assemblies which are fixed to the hub and sequentially arranged in the circumferential and spaced mode around the central axis of the hub. The multiple driving permanent magnet assemblies and the multiple driven permanent magnet assemblies are sequentially arranged in a staggered mode, and any two of the adjacent driving permanent magnet assembly and the corresponding driven permanent magnet assembly are arranged in a magnetically mutually repulsive mode. Through the mutually magnetically repulsive driving permanent magnet assemblies and driven permanent magnet assemblies, when the driving permanent magnet assemblies are driven by the hub to be close to the driven permanent magnet assemblies, the energy storage process exists, after the peak value is reached, kinetic energy of the hub for obtaining the accelerated speed is more obvious, therefore riding saves more labor, and riding fatigue is relieved.

The invention discloses a super-labor-saving bicycle which comprises a front wheel assembly, a rear wheel assembly, a handle, pedals, a frame, a connecting rod, a swinging rod, a seat and a transmission mechanism, wherein the transmission mechanism is used for transferring swinging force of the swinging rod to the rear wheel assembly. The front wheel assembly and the rear wheel assembly are mounted at the front end and the rear end of the frame, the pedals are rotatably mounted at the lower end of the middle of the frame, the swinging rod and the pedals are hinged to two ends of the connectingrod, the seat is fixed at a hinging end of the connecting rod and the swinging rod, and one end, far away from the seat, of the swinging rod is hinged to the front end of the frame and in transmission connected with the rear wheel assembly through the transmission mechanism. According to the bicycle, force is generated by the weight of a human body, so that the bicycle is easily ridden, long-timemovement of feet is omitted, the bicycle is ridden by movement of a whole body, and good exercising effects can be achieved.

The invention discloses a middle drive system for electric bicycles. The middle drive system comprises a motor, a transmission reversing mechanism and a middle shaft. The middle shaft is rotatably disposed in a middle shaft case, and two ends of the middle shaft are in drive connection with pedals. The middle shaft case is mounted on a bottom bracket of an electric bicycle. A torque sensor is disposed on the middle shaft and electrically connected with a controller. The controller is electrically connected with the motor. The transmission reversing mechanism comprises a first clutch and a second clutch, wherein the first clutch is composed of an inner ring and a middle ring and the second clutch is composed of an outer ring and the middle ring. The first clutch and the second clutch lock in opposite directions. The inner ring is fixed on the middle shaft, and a driving sprocket is fixed on the middle ring and is in drive connection with a driven sprocket of a rear axle of the electric bicycle, and the outer ring is in drive connection with the motor. The middle drive system is high in drive efficiency, simple to install and convenient to maintain, allows for switching between manpower and motor drive by adding the controller and the torque sensor for the adjustment of motor output, and enables riding laborsaving and convenient.

A bicycle with upper and lower pedals and double chain driving features that the upper and lower pedals drive the bicycle with two chains, comprises a right foot pedal, a right sliding groove, a firststeel rope, a right chain, a right sprocket, a left foot pedal, a left sliding groove and a first pulley, wherein the right foot pedal is connected with the right sliding block through a right crankshaft, the right sliding block is connected with the right sliding groove through a right roller, the right sliding groove is connected with a vehicle frame through a pin, and the right roller is connected with the right sliding block through a right roller connecting shaft; The right slider is connected with the first steel rope, the first steel rope is connected with the right chain through the first pulley, and the second pulley is connected with the right chain; The right chain is connected with the right sprocket, and the right sprocket is connected with the vehicle frame through a sprocket connecting shaft; The right chain is connected with the third steel rope, the third steel rope is connected with the third pulley, the right chain is connected with the left chain through the thirdsteel rope, and the third pulley is connected with the left chain; The left chain is connected with a second steel rope through a first pulley, and the second steel rope is connected with a left slider. The invention adopts the upper and lower pedal type double chain driving, avoids the chain dropping problem caused by the chain separating from the tooth plate in riding, and has higher riding efficiency.

The invention discloses a novel chainless-type dual-speed-variable bicycle which comprises a front speed-variable wheel disc, a rear speed-variable wheel disc and a speed regulating main shaft. The front speed-variable wheel disc sleeves a pedal shaft of a speed-variable bicycle, and the rear speed-variable wheel disc sleeves a rear wheel shaft of the speed-variable bicycle. The speed regulating main shaft is arranged between the front speed-variable wheel disc and the rear speed-variable wheel disc, one end of the speed regulating main shaft is in meshing connection with the front speed-variable wheel disc, and the other end of the speed regulating main shaft is in meshing connection with the rear speed-variable wheel disc. The front speed-variable wheel disc and the rear speed-variable wheel disc are used for realizing the multi-gear dual-speed-variable adjustment of a pedal position and a rear wheel position of the speed-variable bicycle under the action of the speed regulating mainshaft. The novel chainless-type dual-speed-variable bicycle has the advantages of the simple structure, long service life, high transmission efficiency, the high power conversion rate and labor-saving riding, and the multi-gear dual-speed-variable adjustment of the pedal position and the rear wheel position can be simultaneously realized.

The invention discloses a labor-saving bicycle with adjustable speed. The labor-saving bicycle with the adjustable speed comprises a front wheel assembly, a rear wheel assembly and a frame; the frontwheel assembly and the rear wheel assembly are correspondingly mounted at the front and rear ends of the frame; the labor-saving bicycle with the adjustable speed is characterized by further comprising a four-connecting-rod mechanism used for converting the deadweight of a rider into a swinging force, a chain wheel, a chain A and a transmission mechanism; the four-connecting-rod mechanism is mounted on the frame; the chain wheel is mounted on the frame in a rotatable manner and engaged with the middle part of the chain A; the chain wheel is connected with the rear wheel assembly through the transmission mechanism in a transmission manner; one end of the chain A is connected to an output connecting rod of the four-connecting-rod mechanism in a sliding manner; one end, connected with the frame, of the output connecting rod extends to form a bending part; the other end of the chain A is connected with the bending part; and a tensioner for tensioning the chain A is arranged between the bending part and the output connecting rod. According to the labor-saving bicycle with the adjustable speed, the speed can be simply and rapidly adjusted to protect physical and psychological health of the rider.

The invention relates to a recumbent closed four-wheel bicycle driven by pedals, electricity and solar energy, comprising a frame chassis, two front wheels, two rear wheels, two seats, a steering mechanism, a brake mechanism, a pedal device, a chain transmission mechanism, an electric mechanism, a solar energy device, a shield, headlights and taillights. The frame chassis is formed by welding five horizontally parallel cross rods and four longitudinally parallel longitudinal rods; the front wheels are coupled to the two ends of a first cross rod and disposed below the two ends of the first cross rod respectively; the rear wheels are coupled to the two ends of a fourth cross rod respectively; the seats are mounted in the plane which is formed by a third longitudinal rod and a fourth longitudinal rod. The steering mechanism comprises two upright Z-shaped handles, two steering curved arms, and a horizontal connecting rod are arranged; a front faceplate group, a transit faceplate group, a rear faceplate group, a motor faceplate, a motor rear faceplate and three rings of chains are provided; a motor, a battery pack and a circuit control system are arranged; a solar silicon membrane and a solar energy-electric energy conversion system are provided; and a front shield, a middle shield and a rear shield are arranged. The bicycle in the invention is suitable for office workers, carrying of children and traveling of elderly people, and can shield the riders from wind, rain and snow.

The invention belongs to the technical field of walking-replacing tools, in particular to a pedal-type bicycle. In the bicycle, a front wheel and a rear wheel are connected into a whole by a bicycle body and consists of a bicycle frame and a vertical pipe, the bicycle body is provided with a bicycle saddle, a bicycle handle and a pedal-driven transmission mechanism, and the transmission mechanism consists of a pedal, a flipper, a speed changer and a chain wheel device. The flipper consists of a compressed spring, a sleeve pipe and a parallelogram hinged expansion rod which are sleeved on the vertical pipe, and a rack for driving the speed changer to transmit is arranged at the back side of the sleeve; the speed changer is arranged on a support frame, a gear of the speed changer is engaged with the rack of the flipper, and a ratchet is coaxially connected with a drive chain wheel of a chain wheel device; and a driven chain wheel of the chain wheel device is connected with a wheel shaft of the rear wheel of the bicycle body. The invention satisfies the normal walking habits of the human body, thereby lightening the pain sense of the legs caused by riding for a long time so as to enable the riding process to be more comfortable and labor-saving. The speed change function of the speed changer enables the velocity of the bicycle to obviously quicken so as to improve the outgoing quality.

The invention discloses a power-assisted cycling method of a bicycle, which exerts intermittent or continuous additional force on a wheel or a toothpad of the bicycle to increase the pressure on a bicycle pedal before the power-assisted cycling or driving. The setting of the power assisting element is used for saving the physical strength of the rider, and the setting of the control element is used for detecting the period of time during which the rider needs to drive, and transmitting the detected signal to the power assisting element, so that the power demand for the mobile power supply is very small. Therefore, compared with the shared motorcycle, the mobile power supply has the advantages of small capacitance, small volume, convenient charging and portability; Cycling is cheaper than sharing a bicycle.

The invention relates to a special gear case for a labor-saving bicycle and a gear transmission mechanism in the gear case. The bicycle is included. The special gear case for the labor-saving bicycle and the gear transmission mechanism in the gear case are characterized in that a pair of pedals moving up and down are arranged on the left and right sides of a frame, the gear case is arranged in a rear wheel of the bicycle, a gear set in the gear case is used for transmitting power, a main gear provided with a unidirectional ratchet or unidirectional bearing is installed on an output shaft, and the main gear is meshed with inner race teeth positioned on the inner wall of a rear strake of the rear wheel. The pair of pedals moving up and down is arranged on the left and right sides of the frame and connected by a linkage device installed on the bicycle frame, the linkage device is composed of a gear and a rack installed on a long arm, and the rack is meshed to the two sides of the gear. The special gear case for the labor-saving bicycle and the gear transmission mechanism in the gear case have the advantages that the lever principle is fully used, to maximize output torque, so that the riding is easier, more convenient and more labor-saving.

The invention discloses an up-and-down reciprocating type bicycle and rickshaw transmission mechanism which comprises two sets of flywheels, ratchet mechanisms are arranged in the flywheels, the two flywheels are installed on the two sides of a rear wheel respectively, the rear wheel is installed on a rear wheel shaft, and transmission structures are installed on the two sets of flywheels respectively; and a frame, wherein four sets of fixed pulleys are installed in the middle of the frame, and a set of fixed pulleys installed on the front face of a vertical stand column of the frame is sleeved with a linkage rope. According to the up-and-down reciprocating type bicycle and rickshaw transmission mechanism, rope transmission or standard bicycle chain transmission is adopted, in the driving process, each pedal only reciprocates on a section of arc, the movement range is just most suitable for human body power generation, power generation and work application can be performed through the self gravity of a rider. The defects that when a traditional bicycle runs, a moment arm is zero, and a dead point does too much idle work are overcome, and riding is more labor-saving.

The invention relates to the technical field of bicycle production, and in particular to a novel bicycle. The novel bicycle comprises a front wheel, a supporting rod is rotationally installed on a rotating mechanism in the middle of the front wheel, a bicycle basket is fixed to the top of the supporting rod, a front support is rotationally installed on the rotating mechanism in the middle of the front wheel at the same time, and a handlebar is installed at the top of the front support. A front-rear connecting beam is fixedly connected between the front support and the handlebar, a rear supportis fixedly connected with the other end of the front-rear connecting beam, a saddle adjusting mechanism is fixed to the upper portion of the rear support, a saddle is fixedly connected with the top of the saddle adjusting mechanism, a rear wheel is arranged on the rear portion of the rear support, and a small chain wheel is arranged in the middle of the rear wheel. A chain is installed on the small chain wheel, a driving mechanism is arranged at the other end of the chain, and a pedal is installed on the driving mechanism. Compared with a traditional bicycle, the novel bicycle is more labor-saving during riding, the height of the saddle suitable for a rider can be easily and accurately adjusted, and the novel bicycle is practical.

The invention relates to a casting type polyurethane material inflation-free tire, made of two polyurethane materials with different structures and different hardness. The casting type polyurethane material inflation-free tire comprises a tire body and a settling pit, wherein one side of the tire body is provided with a tire crown layer; the tire crown layer is poured on the outer top periphery ofthe tire body; the tire crown layer is arranged on the outer side of the tire body, and the settling pit is arranged on the outer side of the tire crown layer; as the crown lay of the casting type polyurethane material inflation-free tire is non-foamed, full density polyurethane (or CPU) elastomer material, the structure of tire crown is different from that of tire body, occupying 1 / 3 to 1 / 4 of the cross-sectional area of the top layer of the tire; as the crown non-foamed body and the tire body foamed body are automatically synthesized into an integral body during the casting process, the tire crown is wear-resistant and skid-proof, has small rolling resistance, has hydrolysis resistance, acid resistance, and alkali resistance, and the tire body foam sponge layer functions to achieve theshock-absorbing effect; and the double-layer shock-absorbing effect is close to that of the traditional pneumatic tire.

The invention relates to the technical field of electric bicycles, and particularly discloses an power output control methodfor an electric bicycle, which comprises the following steps of: detecting atorque signal and a pedaling frequency signal from a central shaft through a manpower driving force detection part and transmitting the torque signal and the pedaling frequency signal to a control part; the control part receives the torque signal and the pedaling frequency signal from the manpower driving force detection part and calculates the manpower output power of the current cyclist to theelectric bicycle according to the torque signal and the pedal frequency signal; the control part automatically selects apower-assisted ratio according to the pedaling frequency signal, and calculatesthe theoretical output power of the motor through the manpower output power and the power-assisted ratio; the control part controls the motor to rotate according to the theoretical output power of themotor. The method can provide accurate power-assisted output.

The invention discloses an intelligent power assisting device of an electric bicycle, which comprises a moment center shaft, a controller and a brushless DC motor controlled by the controller. The moment center shaft comprises a moment shaft, a moment box body, a first optoelectronic switch, a second optoelectronic switch, a fixed anti-dazzling screen, a movable anti-dazzling screen, a chain support, a pressure spring support and a pressure spring, wherein the moment shaft is installed in the moment box body; the pressure spring support and the fixed anti-dazzling screen are fixedly installed on the moment shaft; the chain support is connected with the movable anti-dazzling screen; the pressure spring for driving the chain support is installed on the pressure spring support; the first optoelectronic switch and the second optoelectronic switch are fixed on the moment box body; the fixed anti-dazzling screen is embedded in a slot of the second optoelectronic switch, and the movable anti-dazzling screen is embedded in a slot of the first optoelectronic switch; and output ends of the first optoelectronic switch and the second optoelectronic switch are connected with a single-chip microcomputer input end of the controller.

The invention discloses a hub motor with a built-in torque sensor. The hub motor comprises a motor body and a torque sensing box, an end cover front panel is installed on the front face of the motor body, the torque sensing box is installed on the front face of the end cover front panel, and a transmission rod is installed in an extrusion rotating wheel in a penetrating mode. A heat dissipation explosion-proof box is installed on the surface of the motor body, a sealing heat insulation module is installed on the front face of the transmission rod, two sets of winding columns which are symmetrically arranged are installed on the surface of the motor body, and two sets of correction boxes which are symmetrically arranged are installed on the surface of the rotor assembly. By installing a torque sensing box, a deformation stress block, a deformation resistance block, a first pressure sensor and a second pressure sensor, when the bicycle is started by riding from a static state or encounters resistance in the riding process, the power output of the motor is continuously adjusted and controlled according to the magnitude of the pedaling force of a rider through combination of real-time dynamic detection, and therefore, a rider is assisted to ride in a more labor-saving manner.

The present invention relates to wheeled equipment driving technology, and is especially one wheeled equipment driving method and bicycle driven in the said method. The present invention features that the wheeled equipment with driving wheel possessing a ratchet wheel is driven with one linearly moving gear rack. The bicycle driven in the said method may have all the force from the legs become the moment for moving forwards and mechanical efficiency higher than traditional chain wheel driven bicycle. Therefore, the bicycle driven with the linearly moving gear rack has force saving, high speed, high recreation effect and good body building effect.

The invention relates to a rack transmission mechanism, in particular to a pedal alternate resetting mechanism for a scooter. The pedal alternate resetting mechanism comprises two pedals arranged on a standing board; and the lower ends of the two pedals are respectively connected with a rack for driving a ratchet wheel, and the racks are parallel to each other. The pedal alternate resetting mechanism is characterized in that: an alternate transmission gear is fixedly connected to a position between the two pedals on the lower end face of the standing board; and the upper sections of the two racks are respectively provided with an inward sawtooth, and the transmission gear is meshed between the racks. The pedal alternate resetting mechanism can make the two pedals of the scooter continuously reset alternately, has long service life and is difficult to wear and damage.

A front-drive rear-steering recumbent bicycle of the present invention, wherein a bicycle beam 1 is in connection with a bicycle integral body, a front part of the main beam 1 is in welded connection with a front fork and a splicing chain wheel bracket, a middle part is fixedly equipped with a chaise longue 4 on top, a steering handle shaft 10 is in loose joint with a steering handle 9 underside, a backside is in welded connection with a steering shaft sleeve 3. A steering shaft 2 is in connection with a rear steering fork 7 and is in loose joint with the steering shaft 3 and can rotate free, the rear steering fork 7 is in upper loose joint with a rear steering wheel 6, a rear steering fork right joint bearing 22 and a rear steering fork left joint bearing 23. An upside of the steering handle 9 is in connection with a steering handle right joint bearing 20 and a steering handle left joint bearing 21, the rear steering fork right joint bearing 22 and the steering handle left joint bearing 21 is are connected by a connecting rod A17, the rear steering fork left joint bearing 23 and the steering handle right joint bearing 20 are connected by a connecting rod B18. A front driving wheel 5 is in loose joint with a front fork 8, and is equipped with a flywheel 15 and a speed regulation guider 11 in the middle, pedals 16 and a chain wheel 14 are in loose joint with a chain wheel bracket 13, the chain wheel 14 and the flywheel 15 are connected by a chain 19.

The invention relates to a novel labor-saving bicycle which comprises a bicycle body. Lengthened pedal connecting rods are arranged on the left side and the right side. The bicycle is characterized in that the two lengthened pedal connecting rods on the left side and the right side are connected with respective drive devices on the left side and the right side of a rear wheel of the bicycle body; each of the drive devices on the left side and the right side comprises a directional rotary joint device; the drive devices on the left side and the right side are connected with the two ends of a center shaft of the rear wheel; and the lengthened pedal connecting rods on the left side and the right side directly drive the rear wheel through the drive devices. The novel labor-saving bicycle has the beneficial effects that the lever principle is used by the labor-saving bicycle to the largest extent, the length of a lever is increased multiple times, the double-ratchet-wheel (or double-one-way-bearing) directional rotary joint devices are ingeniously and additionally arranged on the lever, on the basis that a traditional riding manner is guaranteed, the torque force of an outer ring of the rear wheel is improved multiple times, and more labor is saved in the riding process. The soreness swelling, swelling pain and fatigue feelings of leg muscles after long-distance and long-time riding are relieved to the maximum extent, the transmission manner of chain transmission (shaft transmission) of the bicycle is completely overturned, and therefore riding becomes more convenient, quicker and easier.

The invention relates to a box type foldable bicycle. A frame is composed of a first frame body and a second frame body. A tire connecting arm is arranged on the front side of the first frame body, the rear side of the first frame body is in embedded fit with the front side of the second frame body, and a transmission device is arranged in the second frame body, and comprises a first flywheel, a second flywheel, a third flywheel and a chain wheel. The first flywheel is connected with a pedal, the second flywheel is connected with a concentric shaft of the chain wheel, the third flywheel is connected with a rear tire, the first flywheel is in chain connection with the second flywheel, the chain wheel is in chain connection with the third flywheel, and a square is formed by the first frame body, the second frame body and the tire connecting arm. The box type foldable bicycle has the advantages that the bicycle can be folded to be of the size of a briefcase, is attractive, elegant and convenient to carry, under the condition that tires of the bicycle are 18 inches in size, the bicycle can also be folded, labor is saved in the riding process, and the bicycle is suitable for being used by big and tall people.

The invention relates to an intelligent bicycle formed by combination of a motor, a movable stool bicycle and a full-automatic bicycle. The intelligent bicycle is characterized in that the intelligentbicycle comprises the movable stool bicycle, the full-automatic bicycle frame, a stool, eccentric wheels, a battery, a controller, a speed controller and the motor, wherein the motor is installed ina hub of a front wheel of the bicycle, the battery is arranged in the stool, the speed controller is arranged on a handle, the controller is arranged in front of the frame, the stool is provided witha spiral signal line interface matched with a signal line interface formed in a guide rail box, the stool is provided with a soft cushion plate, a soft cushion is arranged on the soft cushion plate, and the stool is provided with a shaft sleeve fastener. The intelligent bicycle has the following advantages: the electric power, the gravity of a rider, the gravity of the stool battery, the elastic force of a spring below the stool and the timely pedaling force can be fully utilized in the riding process of the intelligent bicycle, automatic up-and-down movement is achieved, and cyclic complementary driving force is converted, so a long and long journey is prolonged through one-time charging riding, and the purposes of saving a large amount of electricity and labor and building the body are achieved.

The invention discloses a bicycle provided with a force-increasing accelerating device and belongs to the field of articles for daily life. The bicycle comprises a frame, wheels, handlebars, a saddle, a front fork, a rear fork, a front wheel axle, a rear wheel axle, a chain transmission device, pedal connecting rods and pedals, and is characterized in that the force-increasing accelerating device is arranged between the rear fork and the pedal connecting rods and comprises force-increasing rod pieces and connecting blocks. Pedal shafts originally used for connecting the pedals are arranged at one ends of force-increasing rod pieces A, the connecting ends of the pedal connecting rods are connected to the middle sections of the force-increasing rod pieces A by virtue of bolts, the pedals are arranged at the front ends of the force-increasing rod pieces A, the rear ends of the force-increasing rod pieces A are connected to one ends of force-increasing rod pieces B by virtue of stop pins, and the other ends of the force-increasing rod pieces B are connected to the rear fork by virtue of the connecting blocks. A user feels effort-saving while riding the bicycle with the force-increasing accelerating device, the stability of the bicycle is enhanced, and the utilization ratio of human body energy is improved to 2 / 3 or even 3 / 4.

A pedal gear transmission tricycle comprises a body, handlebars, a front wheel, rear wheels and a seat; a center shaft of the two rear wheels is connected with a differential mechanism; two transmission gears are arranged on the bilateral sides of the differential mechanism respectively; the transmission gears are connected with the differential mechanism through nullable ratchet wheels; each transmission gear is meshed with and matched with a large gear; the two large gears are fixedly connected with pedals which are located on the bilateral sides of the body respectively and used for driving the large gears to rotate in a reciprocating mode. According to the pedal gear transmission tricycle, the driving can be labor-saving, the transmission is reliable, and the turning can be flexible due to the differential mechanism; the reciprocating motion pedal driving mode can be possible due to a ratchet wheel mechanism and the internal meshing combination structure; compared with the pedal mode in the prior art, the working of the mechanism is located in the state that a human body is easy to exert force and accordingly the driving efficiency is improved.