CN111439330A - Stepping bicycle and assisted driving application thereof - Google Patents

Abstract

The invention discloses a stepping bicycle and an application of the stepping bicycle in conjunction with a bicycle. The invention takes a flat and integrally designed stepping bicycle as a vehicle carrier system cooperation vehicle, and applies the vehicle carrier system to a shared bicycle and a flexible bus. The problem that no vehicle can be borrowed or no place can be returned during the peak period due to the traffic tide phenomenon is solved; the order disorder caused by sharing the single vehicles is solved; the problems of inconvenient charging and endurance of the electric scooter are solved; the off-line retail outlet which is provided with the fixed rental position is helped to obtain the passenger flow, the passenger obtaining and reachable coverage area of the flexible bus is helped to be increased, and the more flexible bus system is promoted from bottom to top.

Description

Stepping bicycle and assisted driving application thereof

Technical Field

The invention relates to a method for integrating a manual or electric bicycle, a scooter or a folding bicycle and a scooter as a co-operating vehicle and other large-scale motor vehicles into a vehicle carrier system, in particular to a method for applying a flat and integrally designed stepping bicycle as a vehicle carrier system co-operating vehicle to flexible public transportation.

Background

Full-size bicycles are difficult to adapt to congested cities and larger commuting radiuses, and gradually die from cities. Public bicycles with fixed parking lots derived from full-size bicycles are difficult to deal with the tide phenomenon of traffic and are replaced by shared bicycles without fixed parking lots. The shared bicycle service derived from the full-size bicycle occupies urban space for operation, is difficult to deal with the tide phenomenon of traffic, brings convenience, and simultaneously disturbs urban order and even becomes urban garbage. The shared electric scooter is small and flexible, but is difficult to deal with the tide phenomenon of traffic, so that the shared electric scooter not only causes troubles for city management, but also has pain points for restricting the development of the shared electric scooter through self positioning management and charging endurance. When a deep problem is difficult to solve, people tend to be simpler and easier to solve, and the method for solving the fundamental problem is more difficult to find for a long time. The full-size bicycle sharing scheme, which seems straightforward and simple, does not really solve the problem.

The folding bicycle is complex in structure, is easy to break down, is complex in folding process, is difficult to be used as a sharing bicycle, and has no application case of integrating the bicycle into a large-scale vehicle. The following disadvantages of the folding bicycle are also common: 1. after being folded, the folding bicycle is provided with sharp bulges, is easy to hook and is lack of integrated design, and is inconvenient to integrate with other vehicles; 2. a chain transmission structure is mostly adopted, a circumferential driving mechanism occupies space, folding is inconvenient, and a flat design scheme is rare; 3. the pedaling efficiency is low, in the pedaling cycle of the bicycle, the lower dead point from 6 to 8 o ' clock position and the upper dead point from 10 o ' clock to 12 o ' clock position need to be overcome, only 12 o ' clock to 5 o ' clock position does work, and the rest half circle does not do work, so the pedaling efficiency is low. When the bicycle is driven by the reciprocating pedal to step down, the reverse force given by the other leg is overcome, and the force effectively driven by the untrained person only accounts for 60 percent of the output force, so that the stepping efficiency is low; 4. the folding efficiency is affected by the exposed brake cable; 5. is inconvenient to carry and transport after being folded; 6. the volume and mass are still large.

As shown in fig. 1, the common pedal-driven two-wheeled folding scooter adopts a sleeve front fork steering structure and a folding structure, and the height after folding is the diameter of the front wheel plus the height of the sleeve front fork, which limits the flattening of the folded structure. In addition, although the scooter has a simpler structure than a folding bicycle, the pedal driving mode is more suitable for sports and entertainment, and the scooter is difficult to be continuously used as a co-operating vehicle of a large-sized vehicle.

The folding and gravity steering structure of folding of fifty percent discount formula is adopted to the folding scooter of tricycle of common ground drive of stepping on, simple structure, easy flattening design, and its mode of driving of stepping on is more fit for motion, amusement, is difficult to continuously use as the instrument of riding instead of walk on duty.

Common fifty percent discount formula double round electric scooter, height after folding is the height of front wheel diameter plus sleeve front fork, has restricted the flattening of its folding back structure. Common electric skateboard or scooter is to folding three-wheeled electric scooter, and the design of flattening easily integrates with motor vehicle, also can continuously ride, nevertheless need often to charge and maintain, and unmanned management maintains then can not long-term reliable operation.

The inventor's prior patent 107161264A discloses a step-type bicycle, the hub speed increaser of which overcomes the dead point of the reciprocating pedal drive of the bicycle, and makes the left and right pedals separable as a single drive wheel, thereby facilitating the flat design. But its slide rail type folding structure is not favorable for volume minimization.

If the hub speed increaser solution disclosed at 107161264A is combined with a common two-wheel fold-back structure, the folded height is the front wheel diameter plus the height of the sleeve front fork, still limiting its folded flattening and volume minimization.

If combine common tricycle fifty percent discount structure with the disclosed wheel hub speed increaser scheme of 107161264A, easy flattening design, but when its gravity that adopts common tricycle folding scooter turned to the structure, the action of stepping of riding also can lead to the vehicle to deflect, and it needs certain study cost to ride. When it adopts the well-known ackermann geometry steering structure which is mainly applied to the steering of four-wheel vehicles at present, the structure is relatively complex.

107161264A discloses wheel hub speed increaser relies on the podotheca to drive the footboard and rises, though it can make the passerby pull out from the podotheca through the half surrounding structure of C type that sets up, the podotheca is too loose then is not convenient for drive the footboard and rises, and is too tight then is not convenient for pull out the foot from the podotheca when in danger. In addition, the foot cover structure disclosed in 107161264A is not easy to fold, and increases the size of the pedal.

As shown in fig. 2, the known self-locking pedal can greatly improve the pedaling efficiency, but the locking pedal is a professional sports equipment basically used by professional cyclists for long-distance high-strength riding at present, has a complex structure, high manufacturing cost and complicated cleaning and maintenance, and needs to be matched with special locking shoes for use. The unlocking needs a larger angle action to twist a larger stroke, and a novice user often has a fall accident due to wrong unlocking time.

The four basic forces in nature are universal attraction, electromagnetic interaction, weak interaction and strong interaction. The friction force belongs to electromagnetic interaction force, and is tens of orders of magnitude larger than the universal attraction force. It is an object to design a quick-release connection structure that can be engaged without precise adaptation by utilizing electromagnetic interaction force.

107161264A discloses a pedal return spring which starts to deform when the pedal is stepped down to 14-15 points and becomes a buffer device of a pedal limit key at 17 points. When the pedaling force is reduced or disappears, the pedal is driven to ascend and reset by elastic potential energy. 107161264A discloses a wing pedal made of elastic material to become a restoring vibration damping spring. However, the damping or buffering device needs a certain deformation space to release the pressure, and the pedal return spring disclosed in 107161264a lacks enough elastic deformation space, so that the disclosed structure is difficult to satisfy the design requirement.

At present, the bicycle or scooter and other large-scale motor vehicles are integrated in a mode of being hung outside the motor vehicles or simply placed in the storage space inside the motor vehicles, and the bicycle or scooter with large quantity is difficult to integrate due to the fact that space integration is not integrated.

At present, public transport has the problems of route winding, long time consumption, long waiting time, low efficiency, more transit, few night vehicles and the like. The intelligent public transport system is an important component of the intelligent transport system, and the information, electronics, control, computer, network, GPS, GIS and other high and new technologies are integrated and applied to the public transport system to realize informatization, modernization and intellectualization of public transport scheduling, operation and management, and dynamic and static travel related information is provided for travelers including drivers and passengers, so that the travelers can obtain travel information such as road conditions, required time, optimal transfer modes, required cost and the like at any time in the whole travel process from before departure, on the way to the destination, and the travelers are assisted to reasonably select travel routes and departure time, and the travel efficiency is improved, so that the public transport service level is improved, urban residents are attracted to take public transport for travel, the urban traffic congestion is relieved, and the urban traffic problem is solved. At present, the intelligent public transport system is an implementation technology which is mainly based on the dynamic public transport information real-time scheduling and real-time information publishing theory and improves the public transport efficiency and the service level by using advanced electronic and communication technologies. An exploration case for improving bus efficiency and service experience through a vehicle carrier system is not provided from public vehicle hardware.

The flexible public transport is a novel public transport mode between a conventional public transport and a taxi, integrates the characteristics of high efficiency, low cost and strong flexibility of demand response type public transport of fixed line public transport to a certain extent, and can enrich the urban public transport supply mode. At present, the method is put into use in foreign cities and has good effect. Flexible public transportation currently mainly has the following six modes: the system comprises variable-line buses (63.9%), variable-station buses (16.0%), demand-response type connection (24.2%), station demand-response type buses (30.9%), partial-line variable buses (14.4%) and regional-line buses (11.9%). The use of flexible public transport has increased dramatically over the last 20 years and is on a continuing trend. However, many routes have the final option of abandoning the operation mode, and the main reasons are that the passenger volume is too low, so that the business can not be laid out, and the arrival accuracy rate is low due to the fluctuation of the passenger demand. The contradiction between better coordinating the public travel efficiency and the individual travel convenience, and the contradiction between coordinating and improving the user experience and reducing the commercial operation cost are the problems to be solved by flexible public transportation.

Unmanned driving is the direction of future development. However, even in the unmanned driving era, it is difficult to realize point-to-point transportation for every trip. Intensive travel public transportation is still the main public travel mode in the unmanned driving era, but flexible public transportation modes such as big data flexible scheduling and customized lines according to intensive demands are expected to improve use experience.

Disclosure of Invention

In order to solve the problems, the folding bicycle with the flat and integrated design is obtained to be suitable for the cooperation vehicle of the vehicle carrier system, and the vehicle carrier system is applied to shared bicycles and flexible buses. The invention discloses a stepping bicycle and an application of the stepping bicycle in assisting driving.

The technical scheme adopted by the invention for solving the technical problems is as follows:

the utility model provides a bicycle of marking time and corotation car application thereof, includes the bicycle of marking time, when the bicycle of marking time is as sharing corotation car, still includes vehicle carrier system, characterized by:

the stepping bicycle is a manpower-driven or human-electric hybrid-driven folding bicycle, and is a co-running bicycle or not, and the co-running bicycle is a shared co-running bicycle or not. The assistant vehicle is a bicycle, a folding bicycle, a scooter or a folding scooter which is driven by manpower, electric power or man-electricity hybrid and is integrated with a manned or unmanned large-scale motor vehicle. The motor vehicle is manned or unmanned; private or public; large, medium or small cars, rail vehicles, water vehicles or flying vehicles. The integrated design is that more than one assistant vehicle and the motor vehicle body or the internal facilities are arranged for intensive design and quick disassembly connection. When the assistant vehicle is driven by electricity or man-electricity, the motor vehicle is also provided with a power supply and a wired or wireless charging device matched with the power supply. When the electric or man-electricity hybrid assistant vehicle is used as a sharing assistant vehicle, the vehicle carrier system is also provided with a power management subsystem.

The vehicle carrier system is software and hardware for managing physical connection and information connection of fixed rental car positions, touring rental car positions and shared cooperation cars, and comprises an internet of things lockset, an internet of things rental management system and a touring rental car position scheduling system. The fixed renting parking spaces are a plurality of Internet of things locks fixedly connected with urban infrastructure, or urban furniture which is distributed at corners of a city and consists of a plurality of Internet of things locks or is provided with the Internet of things locks, or Internet of things renting management system terminals arranged in urban districts and retail service points. A touring rental car position is a shared single-vehicle carrier system which only carries the car in coordination and dispatches the car as required; or the touring rental car position is a flexible bus carrier system which is used for carrying passengers and sharing cooperative vehicles in a combined mode.

The sharing assistant vehicle is connected with a fixed rental car space or a tour rental car space through the Internet of things lock in a quick-dismantling mode and is in information connection with the Internet of things rental management system. The tour renting parking spaces are remotely scheduled by a tour renting parking space scheduling system, and the traveling paths, the traveling speeds, the parking positions and the distribution densities of the tour renting parking spaces are set. The Internet of things lockset is connected with the Internet of things lease management system in a remote control mode.

The shared single-vehicle carrier system is a shared cooperation vehicle renting platform which calculates the traveling path of the motor vehicle according to the current geographic position of the motor vehicle and the real-time geographic position and demand big data of a user by a program or artificial intelligence, dispatches the motor vehicle with a person or an unmanned shared cooperation vehicle to travel to a hot spot area according to a set path, or guides the user to rent and return the cooperation vehicle to a nearby fixed renting place by the program, and solves the problems that the vehicle can be rented or the position can not be returned at the same renting point during the peak period due to the traffic tide phenomenon.

When the mobile sharing assisted vehicle rental platform only carries assisted vehicles, a sharing bicycle carrier system is provided with a plurality of internet of things locks in an array in a motor vehicle, and the plurality of assisted vehicles are connected with the motor vehicle through the internet of things locks in a quick-release and disassembly mode and are in information connection with an internet of things rental management system. Or, in order to improve carrying efficiency, the vehicle body of the shared single-vehicle carrier system is arranged to be of a slide rail folding type, the shared single-vehicle carrier system is provided with services by arranging front wheels and rear wheels to run backwards and unfold, and is arranged to run oppositely, fold and migrate to transport.

When the mobile sharing assisted vehicle rental platform is a flexible bus carrier system for compositely loading passengers and sharing assisted vehicles, a plurality of internet of things locks matched with the assisted vehicles are arranged on the motor vehicles, and the internet of things locks and the motor vehicle seats are integrally designed, so that the assisted vehicles and the vehicle seats or seat backs are integrally designed and are connected in a quick-dismantling manner. When the coordinating vehicle is electric or hybrid, the vehicle seat is also provided with a charging device and a power management system.

The flexible bus carrier system increases flexible bus passenger-obtaining efficiency and reachable coverage area by carrying a plurality of rentable or shared assistant vehicles on a large-scale motor vehicle, thereby solving the problem of excessively low passenger capacity. By enabling the passengers, the passenger-bus system has the mobile commuting capability which is convenient to carry, the minimum node-passenger-of the traffic system becomes more flexible, and the problem of low arrival punctuation rate of the passengers is solved, so that the dispatching calculation parameters, path design algorithms or stop setting rules of variable-route buses, variable-stop buses, demand response type connection, stop demand response type buses, partial-route variable buses or regional-route buses can be redesigned, and the more flexible traffic system is promoted from bottom to top.

The assisted bicycle matched with a carrier system of a vehicle is a full-size bicycle, a scooter or an electric scooter which is well known in the prior art. The assisted bicycle matched with a vehicle carrier system is a folding bicycle, a folding power-assisted bicycle, a folding scooter or a folding electric scooter which is known in the prior art. A bicycle matched with a vehicle carrier system is a customized folding bicycle with a flat and integrated design, and the customized folding bicycle with the flat and integrated design is a stepping bicycle.

The stepping bicycle comprises a hub speed increaser, a stepping driving mechanism, a steering mechanism, a folding mechanism, a handle, a braking device and a keel.

The rear end of the keel is connected with the hub speed increaser in a rolling manner, and the front end of the keel is connected with the steering mechanism in a rotating manner; the stepping driving mechanism is in transmission connection with the hub speed increaser, the handle is in transmission connection with the steering mechanism through the folding mechanism, and the handle and the keel are folded in half when the folding mechanism is folded. The braking device is arranged in the handle and below the keel, the upper end of the braking device is in transmission connection with a braking handle arranged on the handle, and the lower end of the braking device is in braking connection with the hub speed increaser. The stepping driving mechanism is provided with a stepping limiting structure and an upward lifting resetting structure, and the stepping limiting structure is also provided with a power recovery spring.

As shown in FIG. 6, in order to limit the height after folding, the two-wheel stepping bicycle with a flat design has a steering mechanism which is a tilt-deflection hinge, a plane bearing or a rotating shaft bearing arranged at the rear end of the steering wheel and not exceeding the diameter height of the steering wheel. The extension line z of the central line of the rotating shaft of the steering mechanism, the diameter r of the steering wheel and the ground line g are arranged to be intersected at one point, or the positive and negative distances between the intersection point of the z and the g and the intersection point of the r and the g are arranged to be less than 1/3 wheel diameters. A folding mechanism is arranged between the steering wheel and the steering mechanism, and a folding wrench of the folding mechanism is a mudguard which is arranged at the top of the steering wheel and is integrally designed with the steering wheel. The handle is arranged and is connected with the steering mechanism through the transmission of the folding mechanism, the steering mechanism can be deflected and steered through the deflection handle, and the change of the posture or the gravity center of a rider does not affect the steering mechanism. The folding spanner is moved by the plate to fold the handle and the keel in half, so that the stepping bicycle is flattened after being folded.

As shown in fig. 9, in order to limit the height after folding, the three-wheel stepping bicycle with a flat design has a parallelogram steering mechanism, two short sides of the parallelogram steering mechanism are respectively connected with two front wheels in a transmission manner, a long side at the rear end of the parallelogram steering mechanism is fixedly connected with a keel, a long side at the front end of the parallelogram steering mechanism is a folding mechanism, and a handle is connected with the steering mechanism through the folding mechanism in a transmission manner. The steering handle can make the parallelogram steering mechanism deflect and steer, and the change of the posture or the gravity center of the rider does not affect the steering mechanism. The handle and the keel can be folded in half by unlocking the folding mechanism, so that the stepping bicycle is flattened after being folded.

As shown in fig. 13, the hub speed increaser is a double-wheel structure driven by the left and right stepping driving mechanisms respectively, so that the hub speed increaser becomes a four-wheel structure stepping bicycle, has more stable riding experience, and does not influence the steering mechanism by the change of the posture or the gravity center of a rider when the hub speed increaser adopts a parallelogram steering mechanism or a gravity deflection steering mechanism or an ackermann geometric steering structure.

As shown in fig. 7, a lower pedal limiting structure with a power recovery spring is provided with a buffering rotating shaft with a torsion spring on a keel at the lower limit position of a pedal, and the pedal deflects and rebounds when being stepped down, so that the power recovery structure can buffer and damp vibration and also help the pedal to lift up again, and becomes a power recovery device.

As shown in fig. 11, a lower pedal limiting structure with a power recovery spring is provided with a wedge structure or an inclined surface on a rotating arm of a pedal, a keel at the lower limit position of the pedal is provided with a wedge block matched with the keel, the wedge block is connected with a compression spring in a sliding manner, so that the force of the pedal is turned to be changed into pressure applied to the compression spring, a larger buffer space and a better vibration reduction effect are obtained in a flat space, and when the pedal is stepped to the limit, the compression spring expands to help the pedal to lift up again, so that the pedal becomes a power recovery device.

As shown in fig. 7, a lifting reset structure is a foot sleeve arranged on the pedal, and a user drives the pedal to do lifting arc motion by means of the foot sleeve after stepping down. In order to facilitate the rider to draw out from the foot sleeves at any time, the foot sleeves are C-shaped semi-surrounding structures connected with a left pedal and a right pedal. In order to conveniently adapt to the foot shapes of different riders, the foot sleeve is provided with an adjusting knob which can slide up and down and be locked. In order to facilitate folding and unfolding, the foot sleeve is provided with a torsional spring, when the stepping bicycle is unfolded, the foot sleeve is automatically rotated and popped for standby through the torsional spring, when the stepping bicycle is folded, a rigid structure is arranged at the adaptive position of the handle and the foot sleeve, and the torsional spring is pressed to enable the foot sleeve to rotate and the pedal to be flattened and folded.

Or, as shown in fig. 11 and 12, a lifting reset structure is that a pedal and a shoe or a shoe cover are respectively provided with a quick-release lock or a micro quick-release structure which are matched with each other. A quick-release lock is a well-known lock pedal adaptive lock shoe, and a miniature quick-release structure is a hasp structure; a miniature quick-release structure is a magnetic attraction device; a miniature quick-release structure is a quick-release mortise and tenon structure; a micro quick-release structure is a brush structure which is connected by electromagnetic interaction force in an inserting way; in order to facilitate the rider to draw away from the lifting reset structure at any time, the miniature quick-disassembling structure is arranged to ensure that the shoe or the shoe cover is easy to disassemble when the shoe or the shoe cover is backwards and lock when the shoe or the shoe cover is forwards and upwards. Therefore, the micro quick-release structure realizes fuzzy butt joint, and the drawing stroke and the drawing time are shorter, so that the structure is safer.

In order to conceal the brake cable, the brake cable of the pedal type bicycle is arranged in the handle and below the keel, the length of the primary tube of the handle and the bottom of the secondary tube are arranged to form a brake cable accommodating space when the secondary tube is folded, or a cable outlet seam is formed in the secondary tube; when the folding pull rod arranged on the handle is folded, the built-in brake cable is wound in the brake cable accommodating space, or the surplus brake cable overflows from the cable outlet seam. In order to be accommodated in a narrow space when the brake cable is folded, different materials, wire diameters, hardness or deflection are arranged on the brake cable in sections.

When the step type bicycle is a man-electricity hybrid drive, a battery and a motor are arranged on a keel, the motor is in contact transmission connection with a hub speed increaser, the motor utilizes an acceleration sensor inside a bicycle body to detect the change of the posture of the bicycle body, and after a proper instruction is calculated through a central microprocessor, the motor is accurately driven to carry out corresponding adjustment by utilizing a servo control system, so that auxiliary power is provided for the power-driven hub speed increaser.

The structure of the step type bicycle is at least provided with one or more than one.

The invention has the beneficial effects that:

the invention discloses a stepping bicycle and an application of the stepping bicycle in conjunction with a bicycle.

The invention takes a flat and integrally designed stepping bicycle as a vehicle carrier system cooperation vehicle, and applies the vehicle carrier system to a shared bicycle and a flexible bus. The problem that no vehicle can be borrowed or no place can be returned during the peak period due to the traffic tide phenomenon is solved; the order disorder caused by sharing the single vehicles is solved; the problems of inconvenient charging and endurance of the electric scooter are solved; the off-line retail outlet for setting the fixed rental position is helped to obtain passenger flow, and the flexible public transportation is helped to increase the passenger obtaining and reachable coverage area, so that the route design algorithm or stop setting rule of the variable-route public transportation, the variable-stop public transportation, the demand response type connection, the stop demand response type public transportation, the partial-route variable public transportation or the regional-route public transportation can be redesigned, and the more flexible public transportation system is promoted from bottom to top.

The vehicle carrier system disclosed by the invention can help the well-known full-size public bicycles to optimize the operation efficiency, and solves the problem that no vehicle can be borrowed or no position can be restored in the rush hour due to the traffic tide phenomenon; the method helps the well-known shared bicycle to solve the problem of order disorder; the charging device helps the well-known electric scooter to solve the problems of charging and endurance; furthermore, the invention also discloses a stepping bicycle suitable for being used as a vehicle carrier system cooperation vehicle, so that the operation efficiency is further improved, the urban space is not occupied, and the maintenance is reduced through manpower or human-electricity hybrid driving.

The stepping bicycle discloses a folding bicycle with flat design of two wheels, three wheels and four wheels and two lower stepping limiting structures which can obtain larger buffer distance in a limited space, and can help the pedals to be lifted again while damping to become a power recovery device. The structure not only overcomes the problem that the dead point is generated by circumferential treading, but also helps to drive the bicycle by using the weight of riding in a standing posture to improve the transmission efficiency, and the physiological bending structure of the human body is used as an organic component of the vibration damping system.

The stepping bicycle discloses two raising reset structures with flat design and space saving, and discloses a micro quick-release and disassembly structure in fuzzy butt joint as a mode of locking, stepping and locking shoes.

The folding structure of the stepping bicycle is simplified, the invisible brake cable is arranged, the brake handle mounted at the tail end and the winding space arranged in the folding pull rod are used for hiding the brake cable in the pipe, so that the folding process is not interfered by the brake cable, and the stepping bicycle is clean, neat, attractive. The vehicle body can be folded only by one folding step, so that the brake cable does not influence the folding efficiency, is wiped and hung after being folded, and is easy to integrate with a motor vehicle.

Description of the drawings;

the invention is further illustrated with reference to the following figures and examples.

Figure 1 is a schematic view of the folding and steering structure of the folding scooter described in the background,

figure 2 is a schematic view of the lock pedal and spiked shoe configuration described in the background,

FIG. 3 is a schematic view of a shared single-vehicle carrier system, wherein a and b are schematic views of structures of touring parking spaces and c is a schematic view of structures of fixed parking spaces,

FIG. 4 is a schematic view of an integrated design and quick-release connection structure of a cooperating vehicle and a vehicle seat in a flexible bus carrier system,

FIG. 5 is a four-view illustration of a two-wheeled stepping bicycle,

FIG. 6 is a schematic view of a two-wheel stepping bicycle,

FIG. 7 a is a schematic view of a steering structure of a two-wheeled stepping bicycle, b is a schematic view of a pedaling limiting structure with buffering and power recovery by a buffering rotating shaft with a torsion spring,

FIG. 8 is a schematic view of a stepping bicycle driven by both human and electric power,

FIG. 9 is a four-view drawing of a three-wheel stepping bicycle with a flat design,

FIG. 10 is a schematic view of a three-wheel stepping bicycle turning structure,

FIG. 11 a is a schematic view of a structure of a lower step limit with wedge sliding buffering and power recovery, b is a schematic view of a structure of an additional commuter bag or a safety helmet for a stepping bicycle,

figure 12 is a schematic view of two lifting reset structures provided with a miniature quick-release structure,

FIG. 13 is a schematic view of a four-wheel stepping bicycle,

in the figure: 1. a vehicle carrier system; 2. Assisting the vehicle; 3. a stepping bicycle; 4. fixing the rental car positions; 5. Touring a rental car; 6. an Internet of things lockset; 7. A city infrastructure; 8. Urban furniture; 9. A city retail service point; 10. sharing a single-vehicle carrier system; 11. A flexible bus carrier system; 12. a motor vehicle; 13. the slide rail is folded to share the single-vehicle carrier system;

20. a hub speed increaser; 21. a step driving mechanism; 22. a steering mechanism; 23. a folding mechanism; 24. a handle; 25. a braking device; 26. a keel; 27. a step-down limiting structure; 28. A lifting reset structure; 29. A power recovery spring; 30. folding the wrench; 31. A fender; 32. a parallelogram steering mechanism; 33. a buffer rotating shaft with a torsion spring; 34. a wedge-shaped structure; 35. a wedge block; 36. a foot cover; 37. a foot cover folding structure; 38. a micro quick-release structure; 39. a disassembly direction; 40. locking the direction; 41. concealing the brake cable; 42. a brake cable accommodating space; 43. a battery; 44. a motor; 45. a bicycle helmet; 46. a case; 47. compressing the spring.

The specific implementation mode is as follows:

as shown in fig. 1-12: the invention discloses a stepping bicycle 3 and a vehicle carrier system 1 provided with a cooperating vehicle 2,

the stepping bicycle 3 is a folding bicycle driven by manpower or man-electricity, in the embodiment, the stepping bicycle 3 is not a walking assistant vehicle 2 and is used as a personal walking tool.

Alternatively, in another embodiment, the stepping bicycle 3 is a co-operating vehicle 2 as a co-operating vehicle for a personal mobility vehicle 12.

Alternatively, in another embodiment, the stepping bicycle 3 is a sharing bicycle. When the stepping bicycle 3 is used as a sharing assistant vehicle, the vehicle carrier system 1 is also included.

The vehicle carrier system 1 is software and hardware for managing physical connection and information connection between a fixed rental car space 4 and a touring rental car space 5 and a shared cooperation car, and comprises an internet of things lockset 6, an internet of things rental management system and a touring rental car space scheduling system.

The fixed renting parking spaces 4 are a plurality of internet of things locksets 6 fixedly connected with urban infrastructures 7, in the embodiment, the urban infrastructures 7 are road guardrails, and the fixed renting parking spaces 4 are a plurality of internet of things locksets 6 integrally designed with the road guardrails.

Or, the fixed parking spaces 4 are city furniture 8 which are distributed at corners of a city and are composed of a plurality of internet of things lockers 6 or are provided with the internet of things lockers 6, in the embodiment, one type of city furniture 8 is a bus stop, one type of city furniture 8 is a public seat, and one type of city furniture 8 is a guide mark …

Or the fixed rental car space 4 is an internet of things rental management system terminal arranged in an urban residential area or an urban retail service point 9. In an embodiment, one management system terminal is a handheld scanner and one fixed rental space 4 is a shelf provided with the management system terminal.

A touring renting parking space 5 is a shared single-vehicle carrier system 10 which only carries an auxiliary vehicle 2 and dispatches the auxiliary vehicle according to the requirement; or, the touring rental car position 5 is a flexible bus carrier system 11 which is used for carrying passengers and sharing cooperative vehicles in a combined mode.

The assistant vehicle 2 is a human-powered, electric or human-electric hybrid-driven bicycle, a folding bicycle, a scooter or a folding scooter integrated with a manned or unmanned large-scale motor vehicle 12. The motor vehicle 12 is manned or unmanned; private or public; large, medium or small cars, rail vehicles, water vehicles or flying vehicles. The integrated design is that more than one assistant vehicle 2 and the motor vehicle 12 body or the internal facilities are designed intensively and connected quickly and detachably. When the assistant vehicle 2 is driven by electric or man-electricity, the motor vehicle 12 is also provided with a power supply and a wired or wireless charging device adapted to the power supply. When the electric or human-electricity hybrid assistant vehicle 2 is used as a sharing assistant vehicle, the vehicle carrier system 1 is also provided with a power management subsystem.

In the embodiment, a plurality of internet of things locks 6 are arranged in an unmanned medium-sized automobile in an array, and a plurality of auxiliary cars 2 are in quick and detachable connection with a motor vehicle 12 through the internet of things locks 6 and are in information connection with an internet of things lease management system, so that the mobile sharing auxiliary car lease platform only carrying the auxiliary cars 2 and a sharing single-car carrier system 10 are formed. In order to improve carrying efficiency, in the embodiment, the vehicle body of the shared single-vehicle carrier system 10 is provided with a slide rail folding type, the shared single-vehicle carrier system is provided with service by arranging the front wheels and the rear wheels to run backwards and unfold, and is provided with the front wheels and the rear wheels to run oppositely and fold and migrate to transfer, so that the shared single-vehicle carrier system 13 with the slide rail folding type is formed. Therefore, the transport vehicle can carry multiple times of the assistant vehicle 2 during transport, and can prolong the service line and provide service for multiple times of customers during vehicle renting service. In an embodiment, the tour renting parking space 5 is remotely scheduled by a tour renting parking space scheduling system, and a traveling path, a traveling speed, a parking position and distribution density of the tour renting parking space are set. And the Internet of things lockset 6 is connected with the Internet of things lease management system in a remote control manner. The shared bicycle carrier system 10 is a shared coordination vehicle rental platform which is used for calculating a traveling path of the motor vehicle 12 according to the current geographic position of the motor vehicle 12 and real-time geographic position and demand big data of a user by a program or artificial intelligence, dispatching the motor vehicle 12 provided with the shared coordination vehicle driven by people or unmanned vehicles to travel to a hot spot area according to a set path to provide vehicle renting service, and solving the problem that the same rental point has no vehicles or no positions during a peak period and can be rented due to traffic tide phenomenon.

When the mobile sharing assisted vehicle rental platform is a flexible bus carrier system 11 for compositely loading passengers and sharing assisted vehicles, a plurality of internet of things locks 6 matched with the assisted vehicles 2 are arranged on the motor vehicles 12, and the internet of things locks 6 and the motor vehicles 12 are integrally designed, so that the assisted vehicles 2 and the vehicle seat backs or the seat cushions are integrally designed and are connected in a quick-dismantling manner. When the assistant vehicle 2 is electric or hybrid electric, the vehicle seat is further provided with a charging device and a power management system. In the embodiment, the public transport vehicle seat adaptive sharing assistant vehicle is characterized in that a station is provided with a fixed renting parking space 4, the influence radius of the station can be prolonged by 1-3 KM, and therefore flexible bus passenger obtaining and reachable coverage area are increased, and the problem of too low passenger capacity is solved. By enabling the passengers, the passenger-bus system has the mobile commuting capability which is convenient to carry, the minimum node-passenger-of the traffic system becomes more flexible, and the problem of low arrival punctuation rate of the passengers is solved, so that the dispatching calculation parameters, path design algorithms or stop setting rules of variable-route buses, variable-stop buses, demand response type connection, stop demand response type buses, partial-route variable buses or regional-route buses can be redesigned, and the more flexible traffic system is promoted from bottom to top. In the embodiment, although the invention discloses various design schemes of stepping bicycles 3, and the vehicle carrier system 1 can also be adapted to various public assisted vehicles, preferably, various vehicle carrier systems 1 are uniformly configured with a shared assisted vehicle, so that the vehicle can be accessed and exchanged at various fixed renting parking places 4 and touring renting parking places 5, and the synergy is realized.

In another embodiment, a travel bus seat adapted to a shared cooperation vehicle allows guests to more efficiently play attractions at the same time, reducing fatigue.

In another embodiment, the last kilometer problem is solved when the helicopter, the yacht, the subway and the urban bus rapid transit are adapted and shared to the cooperative vehicle.

In another embodiment, the unmanned and AI-scheduled demand-responsive docking-type shared cooperation vehicle can expand the same-process matching and calculate the sample data size, accelerate the matching speed, improve the operation efficiency and reduce the user cost.

In an embodiment, the vehicle carrier system 1 is adapted to the above-mentioned well-known human-powered, electric or human-electric hybrid-driven bicycle, folding bicycle, scooter or folding scooter, for example, the vehicle carrier system 1 is adapted to the electric folding scooter to solve the problems of endurance charging and vehicle loss; the vehicle carrier system 1 is adaptive to full-size bicycles, dynamically dispatches the bicycles to hot spots in real time to provide services, and solves the problem of congestion caused by urban everywhere stacking.

Alternatively, in another embodiment, the vehicle carrier system 1 is adapted to a stepper bicycle 3.

In the embodiment, the stepping bicycle 3 comprises a hub speed increaser 20, a stepping drive mechanism 21, a steering mechanism 22, a folding mechanism 23, a handle 24, a brake device 25 and a keel 26.

The rear end of the keel 26 is connected with the hub speed increaser 20 in a rolling way, and the front end of the keel is connected with the steering mechanism 22 in a rotating way; the stepping driving mechanism 21 is in transmission connection with the hub speed increaser 20, the handle 24 is in transmission connection with the steering mechanism 22 through the folding mechanism 23, and the handle 24 and the keel 26 are folded in half when the folding mechanism 23 is folded. The braking device 25 is arranged in the handle 24 and below the keel 26, the upper end of the braking device is in transmission connection with a braking handle arranged on the handle 24, and the lower end of the braking device is in braking connection with the hub speed increaser 20. The stepping drive mechanism 21 is provided with a stepping limiting structure 27 and an upward reset structure 28, and the stepping limiting structure 27 is also provided with a power recovery spring 29.

In the embodiment, as shown in fig. 6, in order to limit the height after folding, the two-wheel stepping bicycle 3 with a flat design has a steering mechanism 22 which is a tilt-swing hinge, a plane bearing or a spindle bearing disposed at the rear end of the steering wheel without exceeding the diameter height of the steering wheel. The extension line z of the central line of the rotating shaft of the steering mechanism 22, the diameter r of the steering wheel and the ground line g are arranged to be intersected at one point, or the positive and negative distances between the intersection point of the z and the g and the intersection points of the r and the g are arranged to be less than 1/3 wheel diameters. A folding mechanism 23 is provided between the steering wheel and the steering mechanism 22, and a folding wrench 30 of the folding mechanism 23 is a fender 31 provided on the top of the steering wheel and designed integrally with the steering wheel. The handle 24 is arranged to be in transmission connection with the steering mechanism 22 through the folding mechanism 23, the steering mechanism 22 can be steered through deflecting the handle 24, and the change of the posture or the gravity center of the rider does not affect the steering mechanism 22. The plate-driven folding wrench 30 can fold the handle 24 and the keel 26 in half, thereby flattening the stepped bicycle 3 after folding.

In another embodiment, as shown in fig. 9, in order to limit the height after folding, the steering mechanism 22 of the three-wheel stepping bicycle 3 with a flat design is a parallelogram steering mechanism 32, two short sides of the parallelogram steering mechanism 32 are respectively connected with two front wheels in a transmission way, a long side at the rear end of the parallelogram steering mechanism 32 is fixedly connected with the keel 26, a long side at the front end of the parallelogram steering mechanism 32 is a folding mechanism 23, and the handle 24 is connected with the steering mechanism 22 in a transmission way through the folding mechanism 23. The yaw grip 24 can yaw steer the parallelogram steering mechanism 32, and a change in the rider's attitude or center of gravity does not affect the steering mechanism 22. Unlocking the folding mechanism 23 allows the handle 24 and the keel 26 to be folded in half, thereby flattening the stepped bicycle 3 after folding.

In another embodiment, the hub speed increaser 20 is provided in a two-wheel structure driven by the left and right step driving mechanisms 21, respectively, so that the four-wheel stepping bicycle 3 with the steering mechanism 22 being a parallelogram steering mechanism 32 has a more stable riding experience, and the change of the posture or the gravity center of the rider does not affect the steering mechanism 22.

In the embodiment, as shown in fig. 7, a stepping-down limiting structure 27 provided with a power recovery spring 29 is provided with a buffer rotating shaft 33 with a torsion spring on a keel 26 at the lower limit position of a pedal, and when the pedal is stepped down, the buffer rotating shaft deflects and rebounds, so that the buffer vibration can be buffered, and the pedal can be helped to be lifted up again, thereby forming the power recovery device.

In another embodiment, as shown in fig. 11, a stepping limiting structure 27 provided with a power recovery spring 29 is provided with a wedge structure 34 or a slope structure at the rotating arm of the pedal, a keel 26 at the lower limit position of the pedal is provided with a wedge block 35 matched with the keel, the wedge block 35 is slidably connected with a compression spring 47, so that the stepping force of the pedal is converted into the pressure applied to the compression spring 47, a larger buffer space and a better vibration damping effect are obtained in a flat space, and when the pedal is stepped to the limit, the compression spring 47 is expanded to help the pedal to lift upwards again, so that the power recovery device is formed.

In the embodiment, as shown in fig. 7, a lifting return structure 28 is a foot sleeve 36 disposed on the pedal, and the user can move the pedal in a lifting arc by means of the foot sleeve 36 after stepping down the pedal. In order to facilitate the rider to pull out from the foot cover 36 at any time, the foot cover 36 is a C-shaped semi-surrounding structure connected to the left and right pedals. In order to adapt to different foot types of riders conveniently, the foot sleeve 36 is provided with an adjusting knob which slides up and down and is locked. In order to facilitate folding and unfolding, the foot sleeve 36 is provided with a torsional spring, when the stepping bicycle 3 is unfolded, the foot sleeve 36 is rotated and popped for standby through the torsional spring, when the stepping bicycle 3 is folded, a rigid foot sleeve folding structure 37 is arranged at the adaptive position of the handle 24 and the foot sleeve 36, and the torsional spring is pressed to enable the foot sleeve 36 to rotate and the pedals to be folded in a flattened mode.

In another embodiment, as shown in fig. 11 and 12, a lifting return structure 28 is provided with a quick release lock or a micro quick release structure 38 respectively fitted to the pedal and the shoe or shoe cover.

As shown in fig. 2, a quick release lock is a well-known lock pedal fitting lock shoe.

As shown in fig. 12a and c, a micro quick release structure 38 is a buckle structure, in which a hooking connection structure is provided on the pedal, and a hooking spike adapted to the pedal is provided on the sole.

Or as shown in fig. 12a and c, a micro quick release structure is provided with a brush structure on the pedal; the shoe sole is provided with a hairbrush spike or a micropore spike which is matched with the shoe sole, so that the shoe sole becomes a miniature quick-dismantling structure which is in fuzzy connection by electromagnetic interaction force.

Or one type of fastener structure is known as a velcro. Or one type of buckle structure is known as a magnetic buckle. However, the two known fuzzy connection schemes are easy to absorb dust and inconvenient to apply to the sole.

As shown in fig. 12b and c, a micro quick-release structure 38 is a quick-release mortise and tenon structure.

In order to facilitate the rider to pull out from the lifting reset structure 28 at any time, the miniature quick-release structure 38 is arranged to be easy to release in a backward side-release direction 39 of the shoe or shoe cover and easy to lock in a forward and upward locking direction 40 according to the observation of the use habits of the rider.

In the embodiment, in order to conceal the brake cable 41, the brake cable of the pedal type bicycle is arranged in the handle 24 and below the keel 26, the length of a primary tube of the handle 24 and the length of a brake cable accommodating space 42 at the bottom when the diode is folded are arranged, or a cable outlet seam is arranged on the diode; when the folding pull rod arranged on the handle 24 is folded, the brake cable arranged in the folding pull rod is wound in the brake cable accommodating space 42, or the surplus brake cable overflows from the cable outlet seam. As shown in fig. 5D, in order to facilitate the folding of the brake cable in a narrow space, different materials, wire diameters, hardness or deflection are arranged in segments of one brake cable.

In the embodiment, one type of handle 24 is integrally designed as a case 46, and one type of case 46 houses a bicycle helmet 45.

In the embodiment, when the stepping bicycle is driven by man-electricity, the battery 43 and the motor 44 are disposed on the keel 26, the motor 44 is in contact transmission connection with the hub speed increaser 20, the motor 44 detects the change of the posture of the bicycle body by using an acceleration sensor inside the bicycle body, and calculates a proper command through the central microprocessor, and then the motor 44 is precisely driven by the servo control system to perform corresponding adjustment, so as to provide auxiliary power for the manually driven hub speed increaser 20.

The structure of the step type bicycle is at least provided with one or more than one.

The above embodiments are for understanding the method and core idea of the present invention, and it will be apparent to those skilled in the art that any possible changes or substitutions may be made without departing from the spirit of the present invention, and the scope of the present invention is covered thereby.

Claims (8)

1. The utility model provides a bicycle of marking time and corotation car application thereof, includes the bicycle of marking time, when the bicycle of marking time is as sharing corotation car, still includes vehicle carrier system, characterized by:

the stepping bicycle is a manpower-driven or human-electricity hybrid-driven folding bicycle, the stepping bicycle is a co-running bicycle or not, and the co-running bicycle is a shared co-running bicycle or not;

the assistant vehicle is a bicycle, a folding bicycle, a scooter or a folding scooter which is driven by manpower, electric power or man-electricity hybrid and is designed by being integrated with a manned or unmanned large-scale motor vehicle; the cooperation vehicle matched with the vehicle carrier system is a full-size bicycle, a scooter or an electric scooter which is well known in the prior art; or the prior known folding bicycle, folding power-assisted bicycle, folding scooter or folding electric scooter; or a customized flat and integrated design folding bicycle, wherein one customized flat and integrated design folding bicycle is a stepping bicycle;

the stepping bicycle comprises a hub speed increaser, a stepping driving mechanism, a steering mechanism, a folding mechanism, a handle, a braking device and a keel;

the rear end of the keel is connected with the hub speed increaser in a rolling manner, and the front end of the keel is connected with the steering mechanism in a rotating manner; the stepping driving mechanism is in transmission connection with the hub speed increaser, the handle is in transmission connection with the steering mechanism through the folding mechanism, and the handle and the keel are folded in half when the folding mechanism is folded; the braking device is arranged in the handle and below the keel, the upper end of the braking device is in transmission connection with a braking handle arranged on the handle, and the lower end of the braking device is in braking connection with the hub speed increaser; the stepping driving mechanism is provided with a stepping limiting structure and an ascending reset structure, and one stepping limiting structure is also provided with a power recovery spring;

the integrated design is that more than one assistant vehicle and the motor vehicle body or the internal facilities are arranged for intensive design and quick disassembly connection; when the assistant vehicle is driven by electricity or man-electricity, the motor vehicle is also provided with a power supply and a wired or wireless charging device matched with the power supply; when the electric or man-electricity hybrid assistant vehicle is used as a sharing assistant vehicle, the vehicle carrier system is also provided with a power management subsystem.

2. The stepping bicycle and its assistant driving application as claimed in claim 1, wherein:

the motor vehicle is manned or unmanned; private or public; large, medium or small cars, rail vehicles, water vehicles or flying vehicles; the vehicle carrier system is software and hardware for managing physical connection and information connection of fixed rental positions and touring rental positions and shared cooperation vehicles, and comprises an internet of things lockset, an internet of things rental management system and a touring rental position scheduling system; the fixed renting parking place is a plurality of Internet of things locks fixedly connected with urban infrastructure, or urban furniture which is distributed at corners of a city and consists of a plurality of Internet of things locks or is provided with the Internet of things locks, or Internet of things renting management system terminals arranged in urban districts and retail service points; a touring rental car position is a shared single-vehicle carrier system which only carries the car in coordination and dispatches the car as required; or, the touring rental car position is a flexible bus carrier system which is used for carrying passengers and sharing cooperative vehicles in a composite manner;

the sharing assistant vehicle is detachably connected with a fixed rental car position or an itinerant rental car position through an internet of things lockset and is in information connection with an internet of things rental management system; the tour renting parking spaces are remotely scheduled by a tour renting parking space scheduling system, and the traveling paths, the traveling speeds, the parking positions and the distribution densities of the tour renting parking spaces are set; the Internet of things lockset is connected with the Internet of things lease management system in a remote control manner;

the shared single-vehicle carrier system is a shared cooperation vehicle renting platform which calculates the traveling path of the motor vehicle according to the current geographic position of the motor vehicle and the real-time geographic position and demand big data of a user by a program or artificial intelligence, dispatches the motor vehicle with a person or an unmanned shared cooperation vehicle to travel to a hot spot area according to a set path, or guides the user to rent and return the cooperation vehicle to a nearby fixed renting place by the program, and solves the problems of no vehicle rentability or no position returnable at the same renting point during the peak due to traffic tide phenomenon;

the motor vehicle is manned or unmanned; private or public; large, medium or small cars, rail vehicles, water vehicles or flying vehicles.

3. The stepping bicycle and its assistant driving application as claimed in claim 2, wherein:

when the mobile sharing assisted vehicle rental platform only carries assisted vehicles, a sharing bicycle carrier system is provided with a plurality of internet of things locks in an array in a motor vehicle, and the plurality of assisted vehicles are connected with the motor vehicle in a quick-release and disassembly mode through the internet of things locks and are in information connection with an internet of things rental management system; or in order to improve the carrying efficiency, the vehicle body of the shared single-vehicle carrier system is arranged to be a sliding rail folding type, the shared single-vehicle carrier system provides service by arranging the front wheels and the rear wheels to run backwards and unfold, and is arranged to run oppositely to fold, migrate and transport by arranging the front wheels and the rear wheels;

when the mobile sharing assisted vehicle rental platform is a flexible bus carrier system for compositely loading passengers and sharing assisted vehicles, a plurality of internet of things locks matched with the assisted vehicles are arranged on the motor vehicles, and the internet of things locks and the motor vehicle seats are integrally designed, so that the assisted vehicles and the vehicle seats or seat backs are integrally designed and are connected in a quick-release and detachable manner; when the assistant vehicle is electric or man-electricity hybrid, the vehicle seat is also provided with a charging device and a power management system;

the flexible bus carrier system increases the flexible bus passenger-obtaining efficiency and the reachable coverage area by carrying a plurality of rentable or shared assistant vehicles on a large-scale motor vehicle, thereby solving the problem of excessively low passenger capacity; by enabling the passengers, the passenger-bus system has the mobile commuting capability which is convenient to carry, the minimum node-passenger-of the traffic system becomes more flexible, and the problem of low arrival punctuation rate of the passengers is solved, so that the dispatching calculation parameters, path design algorithms or stop setting rules of variable-route buses, variable-stop buses, demand response type connection, stop demand response type buses, partial-route variable buses or regional-route buses can be redesigned, and the more flexible traffic system is promoted from bottom to top.

4. The stepping bicycle and its assistant driving application as claimed in claim 1, wherein:

in order to limit the height after folding, a two-wheeled structure stepping bicycle with a flat design, the steering mechanism of the stepping bicycle is an inclined deflection hinge, a plane bearing or a rotating shaft bearing which is arranged at the rear end of a steering wheel and does not exceed the diameter height of the steering wheel; the extension line z of the central line of the rotating shaft of the steering mechanism, the diameter r of a steering wheel and the ground line g are arranged to be intersected at one point, or the positive and negative distances between the intersection point of the z and the g and the intersection point of the r and the g are not more than 1/3 wheel diameters; a folding mechanism is arranged between the steering wheel and the steering mechanism, and a folding wrench of the folding mechanism is a mudguard which is arranged at the top of the steering wheel and is integrally designed with the steering wheel; the handle is arranged and is in transmission connection with the steering mechanism through the folding mechanism, the steering mechanism can be deflected and steered through the deflection handle, and the change of the posture or the gravity center of a rider does not affect the steering mechanism; the folding wrench can be moved by the plate to fold the handle and the keel in half, so that the stepping bicycle is flattened after being folded;

or, in order to limit the height after folding, the three-wheel structure stepping bicycle with the flat design is characterized in that the steering mechanism is a parallelogram steering mechanism, two short edges of the parallelogram steering mechanism are respectively connected with two front wheels in a transmission way, a long edge at the rear end of the parallelogram steering mechanism is fixedly connected with the keel, a long edge at the front end of the parallelogram steering mechanism is a folding mechanism, and the handle is connected with the steering mechanism through the folding mechanism in a transmission way; the steering handle can enable the parallelogram steering mechanism to steer in a deflecting way, and the change of the posture or the gravity center of a rider does not affect the steering mechanism; the handle and the keel can be folded in half by unlocking the folding mechanism, so that the stepping bicycle is flattened after being folded;

or, the hub speed increaser is set into a double-wheel structure driven by the left and right stepping driving mechanisms respectively, so that the four-wheel stepping bicycle has more stable riding experience, and when the four-wheel stepping bicycle adopts a parallelogram steering mechanism or a gravity deflection steering mechanism or an Ackerman geometric steering structure, the posture or gravity center of a rider is not changed to influence the steering mechanism.

5. The stepping bicycle and its assistant driving application as claimed in claim 1, wherein:

a lower pedal limit structure with a power recovery spring is characterized in that a keel at the lower limit position of a pedal is provided with a buffer rotating shaft with a torsion spring, and the pedal deflects and rebounds when being stepped down, so that the pedal can be buffered and damped, and the pedal is also helped to be lifted up again to form a power recovery device;

or, a step on limit structure down that is provided with power recovery spring is provided with wedge structure or inclined plane at the footboard rocking arm, is provided with the wedge of adaptation with it at the fossil fragments of footboard lower limit position, wedge sliding connection compression spring to turn to the power of stepping down the footboard and become the pressure of applying for compression spring, obtain bigger buffer space and better damping effect in flat space, when stepping down to the limit, compression spring diastole helps the footboard raise once more, becomes power recovery unit.

6. The stepping bicycle and its assistant driving application as claimed in claim 1, wherein:

a lifting reset structure is a foot sleeve arranged on a pedal, and a user drives the pedal to do lifting circular motion by means of the foot sleeve after stepping down; in order to facilitate a rider to pull out from the foot sleeves at any time, the foot sleeves are C-shaped semi-surrounding structures connected with a left pedal and a right pedal; in order to conveniently adapt to the foot shapes of different riders, one foot sleeve is provided with an adjusting knob which can slide up and down and be locked; in order to facilitate folding and unfolding, the foot sleeve is provided with a torsional spring, when the stepping bicycle is unfolded, the foot sleeve automatically rotates and pops out for standby through the torsional spring, when the stepping bicycle is folded, a rigid structure is arranged at the position where the handle is matched with the foot sleeve, and the torsional spring is pressed to enable the foot sleeve to rotate and the pedal to be folded in a flattened mode;

or, the lifting reset structure is that the pedal and the shoe or the shoe cover are respectively provided with a quick-dismantling lock or a micro quick-dismantling structure which are matched with each other; a quick-release lock is a well-known lock pedal adaptive lock shoe, and a miniature quick-release structure is a hasp structure; a miniature quick-release structure is a magnetic attraction device; a miniature quick-release structure is a quick-release mortise and tenon structure; a micro quick-release structure is a brush structure which is connected by electromagnetic interaction force in an inserting way; in order to facilitate the rider to draw away from the lifting reset structure at any time, the miniature quick-disassembling structure is arranged to ensure that the shoe or the shoe cover is easy to disassemble when the shoe or the shoe cover is backwards and lock when the shoe or the shoe cover is forwards and upwards.

7. The stepping bicycle and its assistant driving application as claimed in claim 1, wherein:

in order to conceal the brake cable, the brake cable of the pedal type bicycle is arranged in the handle and below the keel, the length of the primary tube of the handle and the bottom of the secondary tube are arranged to form a brake cable accommodating space when the secondary tube is folded, or a cable outlet seam is formed in the secondary tube; when the folding pull rod arranged on the handle is folded, the built-in brake cable is wound in the brake cable accommodating space or the long brake cable overflows from the cable outlet seam; in order to be accommodated in a narrow space when the brake cable is folded, different materials, wire diameters, hardness or deflection are arranged on the brake cable in sections.

8. The stepping bicycle and its assistant driving application as claimed in claim 1, wherein:

when the step type bicycle is a man-electricity hybrid drive, a battery and a motor are arranged on a keel, the motor is in contact transmission connection with a hub speed increaser, the motor utilizes an acceleration sensor inside a bicycle body to detect the change of the posture of the bicycle body, and after a proper instruction is calculated through a central microprocessor, the motor is accurately driven to carry out corresponding adjustment by utilizing a servo control system, so that auxiliary power is provided for the power-driven hub speed increaser.

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