CN111377021B

CN111377021B - Suitcase type folding electric bicycle

Info

Publication number: CN111377021B
Application number: CN201811649600.5A
Authority: CN
Inventors: 刘持平
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-12-30
Filing date: 2018-12-30
Publication date: 2021-12-17
Anticipated expiration: 2038-12-30
Also published as: CN111377021A

Abstract

A suitcase-type foldable electric bicycle has 1 front wheel unit (107) mounted on the 1 st axis (127) of the front suitcase-type chassis unit (101), 1 rear wheel folding and containing cavity (121) is reserved in the position of the 2 nd axis (128) in a dual mode, 1 rear wheel device (112) is installed at the position of the 3 rd axis (129) of the rear suitcase type chassis device (102), 1 front wheel folding and containing cavity (122) is reserved in the position of the 4 th axis (130) in a dual mode, the front suitcase type chassis device (101) and the rear suitcase type chassis device (102) are connected through a hinge device (103) at the position of a hinge axis (106), the front suitcase type chassis device (101) and the rear suitcase type chassis device (102) are opened, the station locking device (115) is used for rotating in the opposite direction with the hinge axis (106) as an axis, and the simulation suitcase device (141) is combined.

Description

Suitcase type folding electric bicycle

Technical Field

The invention relates to a folding electric bicycle and a folding bicycle.

Background

Buses, subways and high-speed railways develop rapidly, but a good solution does not exist for commuting for the last kilometers; the electric bicycle is used as a green, environment-friendly and energy-saving vehicle, has the advantages of light trip, easy parking and the like, and is a common travel tool for people at present; however, the existing electric bicycle has the problems of large volume, heavy weight, inconvenient charging and the like, the existing electric bicycle is not provided with moving rollers after being folded, the moving is inconvenient and only can be carried, in order to ensure that the folded electric bicycle is convenient to move, a folding travel box type electric bicycle is selected according to some design schemes, the problem of inconvenient moving after being folded is solved, and the basic technical requirements of the electric bicycle on the vertical obstacle crossing height, the speed, the axle distance, the load, the braking distance and the like which are required by the driving of the electric bicycle are difficult to meet while the portable requirement are met.

Disclosure of Invention

The invention discloses a suitcase type foldable electric bicycle, which is characterized in that: ZL201720803457.5, and the patent inventions cited on the same day: the invention discloses a suitcase type folding electric vehicle, which has the following patent application numbers: 201710540546.X, discloses a traveling case type folding 2-wheel front case pedal electric bicycle, wherein 1 front wheel device is arranged at the position of the 1 st axis abscissa of a front traveling case type chassis device, 1 rear wheel folding and containing cavity is reserved at the position of the 2 nd axis abscissa in a dual mode, 1 rear wheel device is arranged at the position of the 3 rd axis abscissa of a rear traveling case type chassis device, 1 front wheel folding and containing cavity is reserved at the position of the 4 th axis abscissa in a dual mode, the front traveling case type chassis device and the rear traveling case type chassis device are connected by a hinge device at the position of a hinge axis, and the front traveling case type chassis device and the rear traveling case type chassis device which open a station locking device rotate in opposite directions respectively by taking the hinge axis as an axis to combine the traveling case simulating devices.

The travel suitcase type folding electric bicycle further comprises a travel suitcase type folding 2-wheel front box pedal electric bicycle, the travel suitcase type folding 2-wheel rear box pedal crank middle shaft electric bicycle, the travel suitcase type folding 2-wheel variable-wheelbase rear box pedal electric bicycle and the travel suitcase type folding 2-wheel variable-wheelbase rear box pedal electric bicycle.

The technical scheme adopted by the invention is as follows: the front wheel device is arranged at the 1 st axis position of the front travel box type chassis device, the rear wheel device is arranged at the 3 rd axis position of the rear travel box type chassis device, the crank middle shaft driving gear device extends out from the position of the rear side groove device of the front travel box type chassis and is connected with the driven gear device through the rear side groove device of the rear travel box type chassis, the driven gear device and the chain gear device are arranged on the driven gear and the chain gear device to synchronously rotate, the chain gear device is connected with the fly gear device to drive the rear wheel device to realize the pedal riding function, the pedal crank middle shaft device is arranged in the area of the rear wheel folding containing cavity of the front travel box type chassis device, the crank middle shaft rotating and folding device and the pedal folding limiting device are used for limiting when the bicycle crank rotating and folding pedal device is folded, and the pedal crank middle shaft device and the rear wheel device are not interfered with each other during the folding simulation travel box device, or the front wheel device is arranged at the 1 st axial line position of the front travel box type chassis device, the rear wheel device is arranged at the 3 rd axial line position of the rear travel box type chassis device, the crank middle shaft driving bevel gear device extends from the position of the rear side groove device of the front travel box type chassis and is connected with the gap bridge bevel gear device through the rear travel box type chassis front side groove device, the gap bridge bevel gear device is connected with the driven bevel gear device, the driven bevel gear device is connected with the transmission shaft driving bevel gear device through the transmission shaft device or through the universal transmission shaft device, the transmission shaft driving bevel gear device is connected with the bevel gear flywheel device to drive the rear wheel device to realize the pedal riding function, the pedal crank middle shaft device is arranged in the region of the rear wheel folding containing concave cavity of the front travel box type chassis device, the crank middle shaft rotating and folding device, the pedal folding limiting device is used for the bicycle crank rotating and folding pedal device, The pedal crank middle shaft device and the rear wheel device do not interfere with each other in the process of folding the simulation travel suitcase device, or the front wheel device is arranged at the 2 nd axis position of the front travel suitcase type chassis device, the rear wheel device is arranged at the 4 th axis position of the rear travel suitcase type chassis device, the pedal middle shaft device is arranged on the rear travel suitcase type chassis device, the chain gear device is arranged on the pedal middle shaft device, the chain gear device is connected with the fly gear device to drive the rear wheel device to realize the pedal riding function, the pedal middle shaft device is arranged in the area between the wheel edge of the front wheel device and the wheel edge of the rear wheel device or between the wheel edge of the rear wheel fender device, the pedal middle shaft device and the front wheel device or the rear wheel fender device do not interfere with each other in the folding simulation travel suitcase device, or the front wheel device is arranged at the 2 nd axis position of the front travel suitcase type chassis device, the rear wheel device is arranged at the 4 th axis position of the rear travel suitcase type chassis device, the pedal crank middle shaft device and the bicycle wheel device are arranged in the folding simulation travel suitcase type chassis device, The pedal central shaft device is arranged on the rear travel box type chassis device, the central shaft driving bevel gear device is arranged on the pedal central shaft device, the central shaft driving bevel gear device is connected with the driven bevel gear device, the driven bevel gear device is connected with the transmission shaft driving bevel gear device through a transmission shaft or a universal transmission shaft device, the transmission shaft driving bevel gear device is connected with the bevel gear flywheel device to realize the riding function of the pedal driven rear wheel device, the pedal central shaft device is arranged in the area between the edge of the front wheel device and the edge of the rear wheel device or between the edges of the rear wheel fender devices in the process of folding the simulation travel box device, the pedal central shaft device is not interfered with the front wheel device or between the rear wheel fender devices or between the front wheel fender devices, or the front wheel device is arranged at the 2 nd axial line position of the front travel box type chassis device, the rear wheel device is arranged at the 4 th axial line position of the rear travel box type chassis device, the pedal crank central shaft device is arranged on the rear travel box type chassis device, the pedal crank central shaft device is arranged at the rear travel box type chassis device, the pedal bevel gear device is arranged at the pedal bevel gear device, the pedal crank central shaft device, the pedal bevel gear is arranged at the pedal bevel gear device, the pedal bevel gear device is arranged at the pedal bevel gear device, the pedal bevel gear device is arranged at the pedal bevel gear device, the pedal bevel gear device is arranged at the pedal bevel gear device, the pedal bevel gear device is arranged at the pedal device, the pedal device is arranged at the pedal device, the pedal bevel gear device, the pedal device is arranged at the pedal device, the pedal, The chain gear device is arranged on the pedal crank central shaft device, the chain gear device is connected with the flying gear device to drive the rear wheel device to realize the pedal riding function, the pedal crank central shaft device is arranged in the area of a folding and accommodating cavity of the front wheel device of the rear suitcase type chassis device, the pedal folding limiting device is used for limiting in the process of folding the simulation suitcase device to ensure that the pedal crank central shaft device and the front wheel device are not interfered with each other, the pedal crank central shaft device is arranged in the rotation process of the rear suitcase type chassis device and is not interfered with the rear wheel device or the rear wheel fender device, or the front wheel device is arranged in the 2 nd axial position of the front suitcase type chassis device, the rear wheel device is arranged in the 4 th axial position of the rear suitcase type chassis device, the pedal crank central shaft device is arranged on the rear suitcase type chassis device, the crank central shaft device is arranged on the pedal crank central shaft device, the pedal crank central shaft device is connected with the driven bevel gear device, The driven bevel gear device is connected with the transmission shaft driving bevel gear device through the transmission shaft device or the universal transmission shaft device, the driving bevel gear device is connected with the bevel gear flywheel device to realize the riding function of the pedal-driven rear wheel device, the pedal crank central shaft device is arranged in the area of a front wheel folding and accommodating cavity of the rear suitcase type chassis device, the pedal folding limiting device is used for limiting in the process of folding the simulation suitcase device to ensure that the pedal crank central shaft device and the front wheel device do not interfere with each other, the pedal crank central shaft device does not interfere with the rear wheel device or the rear wheel mudguard device in the rotation process, or the front wheel device is arranged at the 1 st axial line position of the front suitcase type chassis device, the rear wheel device is arranged at the 4 th axial line position of the rear suitcase type chassis device, the pedal central shaft device is arranged on the rear suitcase type chassis device, the central shaft driving gear device is connected with the driven gear device, The driven gear device, the chain gear device and the 1 st end of the folding arm device are coaxially arranged on the folding arm shaft seat device, wherein the 1 st end of the folding arm device is hinged with the folding arm shaft seat device, the 2 nd end of the folding arm device is movably hinged with the rear wheel suspension device, the driven gear device and the chain gear device synchronously rotate, the chain gear device is linked with the flying gear device to drive the rear wheel device to realize the pedal riding function, the pedal middle shaft device is arranged in the area between the edge of the front wheel device and the edge of the rear wheel device or between the edge of the rear wheel device and the rear wheel fender device when the travel box simulating device is folded, the pedal middle shaft device and the front wheel device or the rear wheel fender device do not interfere with each other, or the front wheel device is arranged at the 1 st axis position of the front travel box type chassis device, the rear wheel device is arranged at the 4 th axis position of the rear travel box type chassis device, the pedal middle shaft device is arranged on the rear travel box type chassis device, The middle shaft driving bevel gear device is connected with the intermediate bevel gear device, the intermediate bevel gear device is connected with the driven bevel gear device, the driven bevel gear device is connected with the transmission shaft driving bevel gear device through a transmission shaft device or a universal transmission shaft device, the transmission shaft driving bevel gear device is connected with a bevel gear flywheel device to drive a rear wheel device to realize a pedal riding function, and when the travel box device is folded to simulate the travel box device, the pedal middle shaft device is arranged in a region clamped by the edge of a front wheel device wheel and the edge of the rear wheel device wheel or the rear wheel mudguard device, and the pedal middle shaft device is not interfered with the front wheel device or the rear wheel mudguard device; at least 1 front wheel device is arranged on the front travel suitcase type chassis device; the rear traveling case type chassis device is at least provided with 1 rear wheel device; each wheel device is provided with at least one set of suspension device or is damped by the tire device without the suspension device.

The radius of rotation of the 1 st axis to the hinge axis is equal to the radius of rotation of the 4 th axis to the hinge axis within a tolerance allowance range; the radius of rotation of the 2 nd axis to the hinge axis is equal to the radius of rotation of the 3 rd axis to the hinge axis within a tolerance allowance range; the position of the axis abscissa refers to the position of the abscissa of the edge line below the unfolding station of the suitcase type foldable electric vehicle from the front wheel device to the rear wheel in sequence.

The braking device can be selectively provided with an inter-shaft braking device or an inter-wheel braking device, and the braking device comprises a disc type braking device and a drum type braking device.

The suspension device can be selectively provided with a rocker arm type suspension device, or a hydropneumatic suspension device, or a plate spring suspension device, or a torsion bar type suspension device, or a double-fork arm type suspension device, or an active suspension device, or a suspension-free device and utilizes a tire device for damping.

The simulation travel suitcase device comprises a front travel suitcase type chassis device, a rear travel suitcase type chassis device, a front side device of a front travel suitcase type chassis, a rear side device of the front travel suitcase type chassis, a 1 st side device of the front travel suitcase type chassis, a 2 nd side device of the front travel suitcase type chassis, a front side device of a rear travel suitcase type chassis, a rear side device of the rear travel suitcase type chassis, a 1 st side device of the rear travel suitcase type chassis, a 2 nd side device of the rear travel suitcase type chassis, a front frame device, a rear frame device, a hinge axis position wiring hole or a hinge-axis-free position wiring hole, a handle device, a hinge axis, a front travel suitcase type chassis roller device or a front travel suitcase-free chassis rolling energy device, a rear travel suitcase type chassis roller device or a rear travel suitcase-free chassis roller device; the front side device of the front suitcase type chassis, the rear side device of the front suitcase type chassis, the 1 st side device of the front suitcase type chassis and the 2 nd side device of the front suitcase type chassis are combined and fixed on the front frame device; the front side device of the rear suitcase type chassis, the rear side device of the rear suitcase type chassis, the 1 st side device of the rear suitcase type chassis and the 2 nd side device of the rear suitcase type chassis are combined and fixed on the rear frame device; the front suitcase type chassis device is connected with the rear suitcase type chassis device by a hinge device at the position of a hinge axis; the front suitcase type chassis device and the rear suitcase type chassis device respectively rotate in opposite directions by taking the hinge axis as an axis and simulate a suitcase device; the front wheel device and the rear wheel device are both contained in the simulation suitcase device; the roller device can be a one-way roller device or a universal roller device.

The double-upright-rod lifting handle device on the outer side of the front fork comprises a front fork outer upright-rod lifting sleeve device, a front fork outer upright-rod lifting locking device, a main shaft cross beam device, a front fork device or a front fork suspension device, a front fork outer upright-rod device and a handle device; the vertical rod device for vertically lifting the vertical rod lifting sleeve device on the outer side of the front fork is positioned through the lifting locking device; the side surfaces of the 1 st and 2 nd upright rod lifting sleeve devices of the double upright rod lifting handle device outside the front fork are respectively fixed at the 1 st end and the 2 nd end of the main shaft beam device; the 1 st and 2 nd front fork devices or the 1 st ends of the front fork suspension devices are respectively fixed between the main shaft of the main shaft cross beam device and the 1 st end of the main shaft cross beam device or between the main shaft and the 2 nd end of the main shaft cross beam device, namely the inner sides of the upright rod lifting sleeve devices at the outer sides of the front forks are provided, the main shaft of the main shaft cross beam device is hinged with the front frame device, the 1 st ends of the 1 st and 2 nd front fork outer upright rod devices are respectively inserted into the upright rod lifting sleeve devices at the outer sides of the front forks, and the 2 nd ends of the 1 st and 2 nd front fork outer upright rod devices are respectively fixed on the double upright rod lifting handle devices at the outer sides of the front forks; the main shaft cross beam device can be a straight beam or a U-shaped beam, the opening of the U-shaped beam is forward, the bent part of the U-shaped beam faces the front frame, namely the front opening U-shaped beam, the opening of the U-shaped beam faces the rear frame, namely the rear opening U-shaped beam (not shown), and preferably a double-upright lifting handle device arranged at the outer side of a front fork on the straight beam; the lifting and descending of the upright device at the outer side of the front fork are not interfered with the front fork device or the front fork suspension device, the double upright lifting handle devices at the outer side of the front fork are accommodated in the double upright lifting handle accommodating concave cavities reserved on the front and rear travel case chassis, and the upright device is not interfered with the front frame device or the rear frame device in the lifting process or the forward travel case type chassis device and the rear travel case type chassis device which rotate in opposite directions and are folded; the mode that the double-upright-rod lifting handle device on the outer side of the front fork is fixed on the main shaft beam is also suitable for the double-upright-rod lifting folding handle device on the outer side of the front fork; according to the requirement of the double upright rod lifting handle devices on the outer side of the front fork on the height above the ground, two upright rod devices can be selected to lift, or 3 upright rod devices can be selected to lift.

The double-upright-rod lifting saddle device comprises a saddle upright rod device, a saddle upright rod lifting sleeve device, a saddle upright rod lifting locking device, a hollow saddle device or a gap saddle device or a saddle device; the saddle upright rod device which is lifted in the saddle lifting sleeve is limited by the lifting locking device; the saddle upright rod lifting sleeve device is fixed on the 1 st longitudinal beam and the 2 nd longitudinal beam of the rear frame device; the saddle upright rod device is accommodated in a double upright rod lifting saddle accommodating concave cavity reserved in the front and rear travel suitcase chassis, and the saddle upright rod device does not interfere with the front frame device and the rear frame device in the lifting process or the process that the front travel suitcase type chassis device and the rear travel suitcase type chassis device rotate and fold in opposite directions; according to the requirement of the double-upright-rod lifting saddle device on the height above the ground, two upright rod devices can be selected to lift, or 3 upright rod devices can be selected to lift.

The integrated square sliding sleeve vehicle corner rotating pedal device comprises a sliding sleeve frame device, a clamping ring groove device, a square sliding rod device, a clamping ring device, a spring device, an integrated square sliding sleeve device, a square-opening bolt device, a square hole device and a sliding rod rotating shaft sleeve device; the square-opening bolt device is compressed in the direction of the spring device by hands in the process of folding the pedal device, so that the square-opening bolt device exits from the square-hole device, and the square-opening bolt device is inserted into the square-hole device after the square-slide-bar device rotates for 90 degrees, so that the folding of the integrated square-sliding-sleeve vehicle corner rotating pedal device is realized.

The square sliding sleeve vehicle corner rotating pedal device with the gasket comprises a square sliding sleeve snap ring device, a square sliding sleeve gasket device, a square sliding sleeve snap ring groove device, a spring device, a sliding sleeve frame device, a square sliding rod device, a snap ring groove device, a square sliding sleeve device with the gasket, a square opening bolt device, a square hole device and a sliding rod rotating shaft sleeve device; the folding pedal device uses a hand to press the gasket square sliding sleeve device towards the direction of the spring device to enable the square bolt device to exit from the square hole device, and after the square sliding rod device rotates for 90 degrees, the square bolt device is inserted into the square hole device again to realize the folding of the gasket square sliding sleeve vehicle crutch rotating pedal device.

The front frame device or the rear frame device is a telescopic front frame device or a telescopic rear wheel frame device, wherein the telescopic front frame device comprises a front telescopic frame locking device and a front suitcase type chassis roller device, or the telescopic rear frame device comprises a telescopic rear frame locking device and a rear suitcase type chassis roller device; the telescopic front frame device is provided with a rear wheel folding and accommodating cavity at the position of the 1 st axis after being unfolded, and the 1 st axis only exists when the telescopic front frame device is stretched and the length of the front suitcase type chassis device is equal to that of the rear suitcase type chassis device; the position of a front wheel folding and containing cavity on the 4 th axis is reserved after the telescopic rear frame device is unfolded, and the 4 th axis exists only when the telescopic rear frame device is stretched, and the length of the front suitcase type chassis device is equal to that of the rear suitcase type chassis device.

The front wheel device of the suitcase type folding 2-wheel front box pedal electric bicycle is arranged on a front fork suspension device at the horizontal coordinate position of the 1 st axis of the front suitcase type chassis device; the rear wheel device is arranged on a rear wheel suspension device at the 3 rd axis abscissa position of the rear suitcase type chassis device; the rear wheel folding and accommodating cavity is dually reserved at the position of the abscissa of the 2 nd axis; the front wheel folding and accommodating cavity is dually reserved at the position of the abscissa of the 4 th axis; the front suitcase type chassis device and the rear suitcase type chassis device are connected by a hinge device at the position of a hinge axis, the front suitcase type chassis device and the rear suitcase type chassis device respectively rotate in opposite directions by taking the hinge axis as an axis and combine a simulation suitcase device, and the front wheel device and the rear wheel device are contained in the simulation suitcase device; the working position state crank middle shaft driving gear device extends out of the position of a rear side face groove device of the front traveling box type chassis device and is connected with a driven gear device through the rear traveling box type chassis front side face groove device, the driven gear device and a chain gear device are arranged on a driven gear and a chain gear shaft device to synchronously rotate, and the chain gear device is connected with a fly gear device to drive a rear wheel device to realize a pedal riding function; when the folding simulation travel box device is used, the driving gear device and the driven gear device of the crank middle shaft are in a separated state; the crank middle shaft rotating and folding device is used for folding the 1 st pedal and the 2 nd pedal, and the 1 st pedal and the 2 nd pedal are respectively contained on the side surface of the 1 st side surface device of the front suitcase type chassis and the side surface of the 2 nd side surface device of the front suitcase type chassis after being folded; the 1 st and 2 nd outer upright rod devices of the double upright rod lifting handle devices at the outer sides of the front forks are respectively fixed at the 1 st end and the 2 nd end of the main shaft beam device, and the 1 st end and the 2 nd end of the front fork suspension device are respectively fixed at the inner sides of the 1 st end and the 2 nd end of the main shaft beam device, the ascending and descending of the outer upright rod devices of the front forks and the suspension of the front forks are not interfered with each other, the outer double upright rod lifting handle devices of the front forks are accommodated in the reserved double upright rod lifting handle accommodating concave cavities of the front and rear travel case chassis, and the outer upright rod devices of the front forks and the front frame devices or the rear frame devices are not interfered with each other in the lifting process or the front travel case chassis device and the rear travel case chassis device in the opposite rotating and folding process; the 1 st and 2 nd saddle upright lifting sleeve devices of the double upright lifting hollow saddle device are respectively fixed on the outer sides of the 1 st and 2 nd longitudinal beams of the rear frame device, the 1 st ends of the 1 st and 2 nd saddle upright devices are respectively inserted into the 1 st and 2 nd saddle upright lifting sleeve devices, and the 2 nd ends of the 1 st and 2 nd saddle upright devices are fixed on the hollow saddle device; the double-upright-rod lifting hollow saddle device is accommodated in a double-upright-rod lifting saddle accommodating concave cavity reserved in the front and rear travel case chassis, and the saddle upright rod device does not interfere with the front frame device or the rear frame device in the lifting process or the process that the front travel case type chassis device and the rear travel case type chassis device rotate and fold in opposite directions; the pedal crank central shaft device is arranged in the area of a rear wheel folding and containing cavity of the front suitcase type chassis device, and the crank central shaft rotating and folding device and the pedal folding limiting device are used for limiting the folding of the bicycle crank rotating and folding pedal device and simulating the process of the suitcase folding, and the pedal crank central shaft device and the rear wheel device are not interfered with each other.

The front wheel device of the suitcase type folding 2-wheel front box pedal bicycle is arranged on a front fork suspension device at the position of the abscissa of the 1 st axis of the front suitcase type chassis device; the rear wheel device is arranged on a rear wheel suspension device at the 3 rd axis abscissa position of the rear suitcase type chassis device; the rear wheel folding and accommodating cavity is dually reserved at the position of the abscissa of the 2 nd axis; the folding and containing cavity of the front wheel is reserved at the unfolding position of the telescopic rear frame device in a dual mode; the working position state crank middle shaft driving bevel gear device extends out from the position of a rear side groove device of the front travel box type chassis to be connected with a gap bridge bevel gear device through the front side groove device of the rear travel box type chassis, the gap bridge bevel gear device is connected with a driven bevel gear device, the driven bevel gear device is connected with a transmission shaft driving bevel gear device through a universal transmission shaft device, and the transmission shaft driving bevel gear device is connected with a bevel gear flywheel device to realize the riding function of the pedal driving rear wheel device; the pedal crank central shaft device is arranged in the area of a rear wheel folding and containing cavity of the front suitcase type chassis device, and the crank central shaft rotating and folding device and the pedal folding limiting device are used for limiting the folding of the bicycle crank rotating and folding pedal device and simulating the process of the suitcase folding, and the pedal crank central shaft device and the rear wheel device are not interfered with each other.

The front wheel device of the suitcase type folding 2-wheel rear box pedal electric bicycle is arranged on a front fork suspension device at the 2 nd axis abscissa position of the front suitcase type chassis device; the rear wheel device is arranged on a rear wheel suspension device at the 4 th axis abscissa position of the rear suitcase type chassis device; the front wheel folding and accommodating cavity is dually reserved at the position of the abscissa of the 3 rd axis; the rear wheel folding and accommodating cavity is dually reserved at the position of the abscissa of the 1 st axis; the front suitcase type chassis device is connected with the rear suitcase type chassis device by a hinge device at the position of a hinge axis; the front suitcase type chassis device and the rear suitcase type chassis device respectively rotate in opposite directions by taking a hinge axis as an axis and combine with the simulation suitcase device, and the front wheel device and the rear wheel device are contained in the simulation suitcase device; the chain gear device is arranged on the pedal middle shaft device, and a chain of the chain gear device is connected with the flywheel gear device to drive the rear wheel device to realize the pedal riding function; the pedal middle shaft device is arranged on the rear traveling case type chassis device, and in the area between the edge of the folded front wheel device and the edge of the rear wheel device or the rear wheel fender device, the pedal middle shaft device and the front wheel device or the rear wheel fender device do not interfere with each other.

The front wheel device of the suitcase type folding 2-wheel rear box pedal bicycle is arranged on a front fork suspension device at the 2 nd axis abscissa position of the front suitcase type chassis device; the rear wheel device is arranged on a rear wheel suspension device at the 4 th axis abscissa position of the rear suitcase type chassis device; the front wheel folding and accommodating cavity is dually reserved at the position of the abscissa of the 3 rd axis; the rear wheel folding and accommodating cavity is dually reserved at the position of the abscissa of the 1 st axis; the middle shaft driving bevel gear device is connected with a driven bevel gear device, the driven bevel gear device is connected with a transmission shaft driving bevel gear device through a universal transmission shaft device, and the transmission shaft driving bevel gear device is connected with a bevel gear flywheel device to realize the riding function of the pedal-driven rear wheel device; the pedal middle shaft device is arranged on the rear travel suitcase type chassis device, and the pedal middle shaft device and the front wheel device or the rear wheel fender device do not interfere with each other in the area between the edge of the folded front wheel device and the edge of the rear wheel device or the area between the edge of the folded front wheel device and the rear wheel fender device.

The front wheel device of the suitcase type folding 2-wheel rear box pedal crank middle shaft electric bicycle is arranged on a front fork suspension device at the 2 nd axis abscissa position of a front suitcase type chassis device; the rear wheel device is arranged on a rear wheel suspension device at the 4 th axis abscissa position of the rear suitcase type chassis device; the front wheel folding and accommodating cavity is dually reserved at the position of the abscissa of the 3 rd axis; the rear wheel folding and accommodating cavity is dually reserved at the position of the abscissa of the 1 st axis; the front suitcase type chassis device is connected with the rear suitcase type chassis device by a hinge device at the position of a hinge axis; the front suitcase type chassis device and the rear suitcase type chassis device respectively rotate in opposite directions by taking a hinge axis as an axis and combine with the simulation suitcase device, and the front wheel device and the rear wheel device are contained in the simulation suitcase device; the chain gear device is arranged on a pedal crank middle shaft device, and is connected with a flywheel gear device to drive a rear wheel device to realize a pedal riding function; the pedal crank central shaft device is arranged in the area of a front wheel folding containing cavity of the rear suitcase type chassis device, and the pedal folding limiting device is used for limiting in the process of folding the simulation suitcase device, so that the pedal crank central shaft device and the front wheel device are not interfered with each other, and the pedal crank central shaft device is rotated and the rear wheel fender device is not interfered with each other.

The front wheel device of the suitcase type folding 2-wheel rear box pedal crank middle shaft bicycle is arranged on a front fork suspension device at the 2 nd axis abscissa position of the front suitcase type chassis device; the rear wheel device is arranged on a rear wheel suspension device at the 4 th axis abscissa position of the rear suitcase type chassis device; the front wheel folding and accommodating cavity is dually reserved at the position of the abscissa of the 3 rd axis; the rear wheel folding and accommodating cavity is dually reserved at the position of the abscissa of the 1 st axis; the crank middle shaft driving bevel gear device is connected with a driven bevel gear device, the driven bevel gear device is connected with a transmission shaft driving bevel gear device through a universal transmission shaft device, and the transmission shaft driving bevel gear device is connected with a bevel gear flywheel device to realize the riding function of the pedal-driven rear wheel device; the pedal crank central shaft device is arranged in the area of a front wheel folding containing cavity of the rear suitcase type chassis device, and the pedal folding limiting device is used for limiting in the process of folding the simulation suitcase device, so that the pedal crank central shaft device and the front wheel device are not interfered with each other, and the pedal crank central shaft device is rotated and the rear wheel fender device is not interfered with each other.

The 1 st end and the 2 nd end of a front shaft device of a front wheel device of the suitcase type folding 2-wheel variable-wheelbase rear box pedal electric bicycle are respectively arranged on a front fork suspension device at the 1 st axis abscissa position; the 1 st end and the 2 nd end of a rear shaft device of the rear wheel device are respectively arranged on a rear wheel suspension device at the 4 th axis abscissa position; the rear wheel folding variable-wheelbase containing cavity is dually reserved at the position of the abscissa of the 3 rd axis; the rear wheel folding and accommodating cavity is dually reserved at the position of the abscissa of the 2 nd axis; the folding and containing cavity of the front wheel, which is vacated by the folding and variable-wheel-pitch rear wheel, is dually reserved at the position of the abscissa of the 4 th axis; the 1 st end hinge device of the folding arm device is connected with the folding arm shaft seat device; the 2 nd end of the folding arm device is connected with a rear wheel suspension device through a movable hinge device; the movable hinge device is 4 electric spring locking devices, and in the process of changing the wheel base, 1 electric spring locking switch device is used for controlling 4 electric spring locking devices to be synchronously opened to finish changing the wheel base, and then 1 electric spring locking switch device is used for closing 4 electric spring locking devices; the rear wheel fender device and the front wheel folding limiting groove device are fixed on the No. 1 longitudinal beam and the No. 2 longitudinal beam of the rear frame device and do not participate in the variable-wheel-base rotation of the rear wheels; the front suitcase type chassis device and the rear suitcase type chassis device respectively rotate in opposite directions by taking a hinge axis as an axis and combine with the simulation suitcase device, and the front wheel device and the rear wheel device are contained in the simulation suitcase device; the pedal middle shaft device is arranged on the rear travelling case type chassis device, the middle shaft driving gear device is connected with the driven gear device, the chain gear device and the 1 st end of the folding arm device are coaxially arranged on the folding arm shaft seat device, the 1 st end of the folding arm device is hinged with the folding arm shaft seat device, the 2 nd end of the folding arm device is hinged with the rear wheel suspension device, the driven gear device and the chain gear device synchronously rotate, and the chain gear device is connected with the flying gear device to drive the rear wheel device to realize the pedal riding function; the pedal middle shaft device is arranged on the rear traveling case type chassis device, and in the area between the edge of the folded front wheel device and the edge of the rear wheel device or the rear wheel fender device, the pedal middle shaft device and the front wheel device or the rear wheel fender device do not interfere with each other.

The 1 st end and the 2 nd end of a front shaft device of a front wheel device of the suitcase type folding 2-wheel variable-wheelbase rear box pedal bicycle are respectively arranged on a front fork suspension device at the 1 st axis abscissa position; the 1 st end and the 2 nd end of a rear shaft device of the rear wheel device are respectively arranged on a rear wheel suspension device at the 4 th axis abscissa position; the rear wheel folding variable-wheelbase containing cavity is dually reserved at the position of the abscissa of the 3 rd axis; the rear wheel folding and accommodating cavity is dually reserved at the position of the abscissa of the 2 nd axis; the folding and containing cavity of the front wheel, which is vacated by the folding and variable-wheel-pitch rear wheel, is dually reserved at the position of the abscissa of the 4 th axis; the pedal middle shaft device is arranged on the rear travel box type chassis device, the middle shaft driving bevel gear device is connected with the intermediate bevel gear device, the intermediate bevel gear device and the 1 st end of the folding arm device are coaxially arranged on the folding arm shaft seat device in a hinged connection mode, the 2 nd end of the folding arm device is movably hinged with the rear wheel suspension device, the intermediate bevel gear device is connected with the driven bevel gear device, the driven bevel gear device is connected with the transmission shaft driving bevel gear device through the transmission shaft device, and the transmission shaft driving bevel gear device is connected with the bevel gear flywheel device to drive the rear wheel device to realize the pedal riding function; the transmission shaft device is arranged on a transmission shaft seat device of the folding arm device, and the transmission shaft device rotates and folds along with the folding arm device in the folding process; the pedal middle shaft device is arranged on the rear suitcase type chassis device, and in the area clamped by the edge of the folded front wheel device and the edge of the rear wheel device or the rear wheel fender device, the pedal middle shaft device does not interfere with the front wheel device or the rear wheel fender device.

The upright rod lifting locking device, the station locking device, the folding locking device, the pull wire spring locking device, the electric spring locking device, the switching device, the braking device, the hub motor device, the battery device, the folding handle device, the simulation travel box body chamfering angle and the double upright rod lifting handle device are all the prior art.

Has the beneficial effects.

The invention has the beneficial effects that: the suitcase type folding electric vehicle is mainly used for personal transportation means which are in connection with and transfer with the last kilometers in a public transportation system; passengers can drive by themselves to reach the destination by opening the suitcase type foldable electric vehicle when getting off from a bus or a subway, so that seamless connection transfer between private transportation and a public transportation network is realized; meanwhile, the development of the suitcase type foldable electric vehicle skillfully bypasses a series of technical problems of inconvenient charging of the electric vehicle by high-rise residents, the need of arranging a special charging device in a parking lot, long charging time, insufficient parking lot and the like which are difficult to develop around the electric vehicle; when the charging device is not enough and the parking place is not enough, the high-density lithium battery can be charged in offices, hotels and lodging, the temperature of the high-density lithium battery is low, the capacity is low, and particularly the capacity of the battery can be reduced in indoor charging in winter.

Drawings

FIG. 1 is a schematic view of a suitcase type folding 2-wheel front box pedal electric bicycle simulation suitcase device.

Fig. 2 is a schematic view showing the unfolded structure of the suitcase type folding 2-wheel front box pedal electric bicycle.

Fig. 3 is a schematic view of the unfolding station of the suitcase type folding 2-wheel front box pedal electric bicycle.

Fig. 4 is a schematic view of the chain transmission structure of the suitcase type folding 2-wheel front box pedal electric bicycle.

Fig. 1, 2, 3 and 4 are reference numerals of embodiment 1: 101. front travel box type chassis device, 102, rear travel box type chassis device, 103, hinge device, 104, handle device, 105, hinge axis position wiring hole, 106, hinge axis, 107, front wheel device, 108, anti-backward-turning roller device, 109, front travel box type chassis roller device, 110, rear travel box type chassis roller device, 111, front wheel fender device, 112, rear wheel device, 113, rear wheel fender device, 114, double upright rod lifting hollow saddle device, 115, station locking device, 116, folding locking device, 117, rear frame device, 118, front fork suspension device, 119, front frame device, 120, rear wheel suspension device, 121, rear wheel folding storage cavity, 122, front wheel folding storage cavity, 123, front wheel inter-axle brake device, 124, rear wheel inter-axle brake device, 125, front fork outer double upright rod lifting handle device, 126, hinge axis position wiring hole, 106, hinge axis, 107, front wheel device, 108, double upright rod lifting hollow saddle device, 115, station locking device, 116, folding locking device, folding device, a front fork outer upright rod lifting locking device 127, a 1 st axis, 128, a 2 nd axis, 129, a 3 rd axis, 130, a 4 th axis, 131, a front suitcase type chassis front side device 132, a front suitcase type chassis rear side device 133, a front suitcase type chassis 1 st side device 134, a front suitcase type chassis 2 nd side device 135, a rear suitcase type chassis front side device 136, a rear suitcase type chassis rear side device 137, a rear suitcase type chassis 1 st side device 138, a rear suitcase type chassis 2 nd side device 139, a front suitcase type chassis and a rear suitcase type chassis reserve double upright rod lifting handle storage cavity 140, a front suitcase type chassis and a rear suitcase type chassis reserve double upright rod lifting saddle storage cavity 141, a simulation suitcase type device 142, a bicycle turning and folding pedal device 143, a pedal crank middle shaft device 144 and a pedal folding limiting device, 145. crank central axis driving gear device, 146, driven gear device, 147, sprocket gear device, 148, driven gear and sprocket gear sharing axis device, 149, driven gear and sprocket gear coaxial mounting axis seat device, 150, fly gear device, 151, electric vehicle controller device, 152, battery storage device, 153, rear wheel hub motor device, 154, saddle upright lifting latch device, 155, crank central axis seat device, 156, rear wheel suspension axis seat device, 158, rear travel box chassis front side groove device, 159, front travel box chassis rear side groove device, 160, crank central axis rotary folding device, 161, main axis beam device, 162, saddle upright lifting sleeve device, 163, front fork outer side upright lifting sleeve device, 164, front axis device, 165, rear axis device, 166, front fork outer side upright device, 167, saddle upright device, 168, hollow saddle device, 169. chain device, 170, front wheel folding limit groove device.

FIG. 5 is a schematic view of the suitcase type folding 2-wheel front box pedal bicycle simulation suitcase device.

Fig. 6 is a schematic view of the unfolding station of the suitcase type folding 2-wheel front box bicycle.

Fig. 5 and 6 are reference numbers of embodiment 2: 201. a front suitcase type chassis device, 202, a rear suitcase type chassis device, 203, a hinge device, 204, a handle device, 205, a telescopic rear frame locking device, 206, a hinge axis, 207, a front wheel device, 208, a telescopic rear frame device, 209, a front suitcase type chassis roller device, 210, a rear suitcase type chassis roller device, 211, a front suitcase type chassis folding limiting frame device, 212, a rear wheel device, 213, a rear suitcase folding limiting frame device, 214, a double-upright-rod lifting hollow saddle device, 215, a station locking device, 216, a folding locking device, 217, a crank central shaft seat device, 218, a front fork suspension device, 219, a front frame device, 220, a rear wheel suspension device, 221, a rear wheel folding containing cavity, 222, a front wheel folding containing cavity, 223, a front wheel inter-axle braking device, 224, a rear wheel inter-axle braking device, 225, a front fork outer double-upright-lifting handle device, 226. a lifting locking device of upright rods at the outer side of a front fork 227, a 1 st axis 228, a 2 nd axis 229, a 3 rd axis 231, a front side device of a front suitcase type chassis, 232, a rear side device of the front suitcase type chassis, 233, a 1 st side device of the front suitcase type chassis, 234, a 2 nd side device of the front suitcase type chassis, 235, a front side device of a rear suitcase type chassis, 236, a rear side device of the rear suitcase type chassis, 237, a 1 st side device of the rear suitcase type chassis, 238, a 2 nd side device of the rear suitcase type chassis, 239, a double upright rod lifting handle storage cavity reserved in the front and rear suitcase chassis, 240, a double upright rod lifting saddle storage cavity reserved in the front and rear suitcase chassis, 241, a simulation device, 242, a bicycle crank rotary folding pedal device, 243, a pedal crank middle shaft device, 244, a pedal folding limiting device, 245 and a crank middle shaft driving gear device, 246. driven gear device, 247, chain gear device, 248, driven gear and chain gear shared shaft device, 249, fly gear device, 250, rear wheel suspension shaft seat device, 251, driven gear and chain gear coaxial mounting shaft seat device, 252, crank middle shaft rotary folding device, 253, saddle vertical rod lifting locking device, 254, main shaft beam device, 255, saddle vertical rod lifting sleeve device, 256, front fork outer side vertical rod lifting sleeve device, 257, front shaft device, 258, rear shaft device, 259, front fork outer side vertical rod device, 260, saddle vertical rod device, 261 chain device.

Fig. 7 is a schematic view of the suitcase type folding 2-wheel rear case pedal electric bicycle simulation suitcase device.

Fig. 8 is a schematic view of a chain transmission structure of a suitcase type folding 2-wheel rear box pedal electric bicycle.

Fig. 9 is a schematic view showing an unfolded structure of the suitcase type folding 2-wheel rear box pedal electric bicycle.

FIG. 10 is an extended view of the front frame of the suitcase type foldable 2-wheel rear box pedal electric bicycle.

Fig. 11 is a schematic view of the unfolding station of the suitcase type folding 2-wheel rear box pedal electric bicycle.

Fig. 7, 8, 9, 10, 11 are reference numerals of embodiment 3: 301. front travel box type chassis device, 302, rear travel box type chassis device, 303, hinge device, 304, handle device, 305, hinge axis position wiring hole, 306, hinge axis, 307, front wheel device, 308, front telescopic frame locking device, 309, front travel box type chassis roller device, 310, rear travel box type chassis roller device, 311, front wheel fender device, 312, rear wheel device, 313, rear wheel fender device, 314, double upright rod lifting saddle device, 315, station locking device, 316, folding locking device, 317, rear frame device, 318, front fork suspension device, 319, telescopic front frame device, 320, rear wheel suspension device, 321, rear wheel folding storage cavity, 322, front wheel folding storage cavity, 323, front wheel inter-axle braking device, 324, rear wheel inter-axle braking device, 325, front fork outer double upright handle device, 326. a lifting locking device of upright rods at the outer side of a front fork, 327, a 1 st axis, 328, a 2 nd axis, 329, a 3 rd axis, 330, a 4 th axis, 331, a front side device of a front suitcase type chassis, 332, a rear side device of the front suitcase type chassis, 333, a 1 st side device of the front suitcase type chassis, 334, a 2 nd side device of the front suitcase type chassis, 335, a front side device of a rear suitcase type chassis, 336, a rear side device of the rear suitcase type chassis, 337, a 1 st side device of the rear suitcase type chassis, 338, a 2 nd side device of the rear suitcase type chassis, 339, a double upright rod lifting handle device storage cavity reserved in the front suitcase chassis and the rear suitcase chassis, 340, a double upright rod lifting saddle storage cavity reserved in the front suitcase and the rear suitcase chassis, 341, a simulation suitcase device, 342, a bicycle rotary folding pedal device of a bicycle, 343, a pedal middle shaft device, 344 and a pedal folding limiting device, 345. sprocket gear, 346, flywheel gear, 347, electric vehicle controller, 348, battery storage, 349, rear wheel hub motor, 350, middle axle and rear wheel suspension axle seat, 351, saddle upright lifting locking device, 352, main axle beam device, 353, saddle upright lifting sleeve device, 354, front fork outside upright lifting sleeve device, 355, front axle device, 356, rear axle device, 357, front fork outside upright device, 358, saddle upright device, 359 notch saddle, 360, chain device, 361, front wheel folding limit groove device.

FIG. 12 is a schematic view of the travel suitcase type folding 2-wheel rear box pedal bicycle simulation travel suitcase device.

Fig. 13 is a schematic view of the deployment station of the suitcase style folding 2-wheel rear box bicycle.

Reference numerals of embodiment 4 in fig. 12 and 13: 401. front suitcase type chassis device, 402, rear suitcase type chassis device, 403, hinge device, 404, handle device, 405, hinge axis position wiring hole, 406, hinge axis, 407, front wheel device, 408, front retractable frame locking device, 409, front suitcase type chassis roller device, 410, rear suitcase type chassis roller device, 411, front wheel fender device, 412, rear wheel device, 413, rear wheel fender device, 414, double upright post lifting saddle device, 415, station locking device, 416, folding locking device, 417, rear frame device, 418, front fork suspension device, 419, telescopic front frame device, 420, rear wheel suspension device, 421, rear wheel folding storage cavity, 422, front wheel folding storage cavity, 423, front wheel inter-axle braking device, 424, rear wheel inter-axle braking device, 425, front fork outer double upright handle device, 426. 427, 1 st axis, 428, 2 nd axis, 429, 3 rd axis, 430, 4 th axis, 431, front suitcase type chassis front side device, 432, front suitcase type chassis rear side device, 433, front suitcase type chassis 1 st side device, 434, front suitcase type chassis 2 nd side device, 435, rear suitcase type chassis front side device, 436, rear suitcase type chassis rear side device, 437, rear suitcase type chassis 1 st side device, 438, rear suitcase type chassis 2 nd side device, 439, front and rear suitcase type chassis reserve double-upright-rod lifting handle storage cavities, 440, front and rear chassis reserve double-upright-rod lifting saddle storage cavities, 441, simulation suitcase device, 442, crutch rotating folding pedal device, 443, pedal middle shaft device, 444, pedal folding limiting device, 445. the device comprises a chain gear device, a 446 flying gear device, a 447, a middle shaft and rear wheel suspension shaft seat device, a 448, a saddle upright rod lifting locking device, a 449, a main shaft beam device, a 450, a saddle upright rod lifting sleeve device, a 451, a front fork outer side upright rod lifting sleeve device, a 452, a front fork outer side upright rod device, a 453, a saddle upright rod device, a 454, a notch saddle, a 455, a chain device, 456 and a front wheel folding limiting groove device.

FIG. 14 is a schematic view of the suitcase type folding 2-wheel rear case pedal crank central shaft electric bicycle simulation suitcase device.

FIG. 15 is a schematic view of the chain transmission structure of the suitcase type folding 2-wheel rear box pedal crank central shaft electric bicycle.

FIG. 16 is a schematic view of the unfolding position of the suitcase type folding 2-wheel rear box pedal crank central shaft electric bicycle.

Fig. 14, 15, 16 are reference numerals of embodiment 5: 501. front travel box type chassis device, 502, rear travel box type chassis device, 503, hinge device, 504, handle device, 505, hinge axis position wiring hole, 506, hinge axis, 507, front wheel device, 508, front telescopic frame locking device, 509, front travel box type chassis roller device, 510, rear travel box type chassis roller device, 511, front wheel fender device, 512, rear wheel device, 513, rear wheel fender device, 514, double upright rod lifting saddle device, 515, station locking device, 516, folding locking device, 517, rear frame device, 518, front fork suspension device, 519, telescopic front frame device, 520, rear wheel suspension device, 521, rear wheel folding storage cavity, 522, front wheel folding storage cavity, upright rod 523, front wheel inter-axle braking device, 524, rear wheel inter-axle braking device, 525, front fork outer double lifting handle device, 526. a front fork outer upright rod lifting locking device 527, a 1 st axis, 528, a 2 nd axis, 529, a 3 rd axis, 530, a 4 th axis, 531, a front suitcase type chassis front side device, 532, a front suitcase type chassis rear side device, 533, a front suitcase type chassis 1 st side device, 534, a front suitcase type chassis 2 nd side device, 535, a rear suitcase type chassis front side device, 536, a rear suitcase type chassis rear side device, 537, a rear suitcase type chassis 1 st side device, 538, a rear suitcase type chassis 2 nd side device, 539, a front suitcase and a rear suitcase type chassis reserved double upright rod lifting handle storage cavity, 540, a front chassis suitcase and a rear chassis reserved double upright rod lifting saddle storage cavity, 541, a simulation suitcase device, 542, a crank rotary folding pedal device, 543, a pedal crank middle shaft device, 544 and a pedal folding limiting device, 545. sprocket gear, 546, flywheel gear, 547, electric vehicle controller, 548, battery storage device, 549, rear wheel hub motor device, 550, crank middle shaft seat device, 551, rear wheel suspension shaft seat, 552, saddle upright rod lifting locking device, 553, main shaft beam device, 554, saddle upright rod lifting sleeve device, 555, front fork outer side upright rod lifting sleeve device, 556, front fork outer side upright rod device, 557, saddle upright rod device, 558, chain device, 559, front wheel folding limit groove device.

FIG. 17 is a schematic view of the suitcase type folding 2-wheel rear case pedal crank bottom bracket bicycle simulation suitcase device.

FIG. 18 is a schematic view of the unfolding position of the suitcase type folding 2-wheel rear box pedal crank bottom bracket bicycle.

Figure 17, figure 18, embodiment 6 reference numbers: 601. front travel case type chassis device, 602, rear travel case type chassis device, 603, hinge device, 604, handle device, 605, hinge axis position wiring hole, 606, hinge axis, 607, front wheel device, 608, front telescopic frame locking device, 609, front travel case type chassis roller device, 610, rear travel case type chassis roller device, 611, front wheel fender device, 612, rear wheel device, 613, rear wheel fender device, 614, double upright rod lifting saddle device, 615, station locking device, 616, folding locking device, 617, rear frame device, 618, front fork suspension device, 619, telescopic front frame device, 620, rear wheel suspension device, 621, rear wheel folding storage, 622, front wheel folding storage cavity, 623, front wheel inter-axle braking device, 624, rear wheel inter-axle braking device, 625, front fork outer double upright handle device, 626. 627, 1 st axis, 628, 2 nd axis, 629, 3 rd axis, 630, 4 th axis, 631, front suitcase type chassis front side device, 632, front suitcase type chassis rear side device, 633, front suitcase type chassis 1 st side device, 634, front suitcase type chassis 2 nd side device, 635, rear suitcase type chassis front side device, 636, rear suitcase type chassis rear side device, 637, rear suitcase type chassis 1 st side device, 638, rear suitcase type chassis 2 nd side device, 639, front and rear suitcase type chassis reserved double upright rod lifting handle storage cavities, 640, front and rear suitcase type chassis reserved double upright rod lifting saddle storage cavities, 641, simulation device, 642, bicycle crank rotary folding pedal device, 643, pedal crank middle shaft device, 644, pedal folding limit device, 645. sprocket gear, 646, fly gear, 647, crank middle shaft seat, 648, rear wheel suspension shaft seat, 649, saddle vertical rod lifting locking device, 650, main shaft beam device, 651, saddle vertical rod lifting sleeve device, 652, front fork outer vertical rod lifting sleeve device, 653, front fork outer vertical rod device, 654, saddle vertical rod device, 655, chain device, 656, front wheel folding limit groove device.

Fig. 19 is a schematic view of the suitcase type folding 2-wheel variable-wheelbase rear-box pedal electric bicycle simulation suitcase device.

Fig. 20 is a schematic view of a chain transmission structure of a suitcase type folding 2-wheel variable-wheelbase rear box pedal electric bicycle.

Fig. 21 is a schematic view of the variable wheel base of the suitcase type folding 2-wheel variable wheel base rear box pedal electric bicycle.

Fig. 22 is a schematic view showing the unfolded structure of the suitcase type folding 2-wheel variable-wheelbase rear-box pedal electric bicycle.

Fig. 23 is a schematic view of the unfolding station of the suitcase type folding 2-wheel variable-wheelbase rear box pedal electric bicycle.

Reference numerals in embodiment 7 in fig. 19, 20, 21, 22 and 23: 701. front suitcase type chassis device, 702, rear suitcase type chassis device, 703, hinge device, 704, handle device, 705, hinge axis position wiring hole, 706, hinge axis, 707, front wheel device, 708, electric spring locking device, 709, front suitcase type chassis roller device, 710, rear suitcase type chassis roller device, 711, front wheel fender device, 712, rear wheel device, 713, rear wheel fender device, 714, double upright rod lifting saddle device, 715, station locking device, 716, folding locking device, 717, rear frame device, 718, front fork suspension device, 719, front frame device, 720, rear wheel suspension device, 721, rear wheel folding storage cavity, 722, rear wheel folding variable-pitch vacated front wheel folding storage cavity, 723, front wheel inter-axle brake device, 724, rear wheel inter-axle brake device, 725, front fork outer double lifting folding handle device, 726. a front fork outer upright rod lifting locking device 727, a 1 st axis, 728, a 2 nd axis, 729, a 3 rd axis, 730, a 4 th axis, 731, a front suitcase type chassis front side device, 732, a front suitcase type chassis rear side device, 733, a front suitcase type chassis 1 st side device, 734, a front suitcase type chassis 2 nd side device, 735, a rear suitcase type chassis front side device, 736, a rear suitcase type chassis rear side device, 737, a rear suitcase type chassis 1 st side device, 738, a rear suitcase type chassis 2 nd side device, 739, a front and a rear suitcase type chassis reserved double upright rod lifting folding handle storage cavity, 740, a front and a rear suitcase type chassis reserved double upright rod lifting saddle storage cavity, 741, a simulation suitcase device, 742, a bicycle crank rotary folding pedal device, 743, a pedal middle shaft device, 744, a pedal folding limiting device, 745. a central shaft driving gear device, 746, a driven gear device, 747, a chain gear device, 748, a folding arm shaft seat device, 749, a flying gear device, 750, an electric vehicle controller device, 751, a battery storage device, 752, a rear wheel hub motor device, 753, a foot support device, 754, a folding arm device, 755, a saddle upright rod lifting and locking device, 756, a main shaft beam device, 757, a saddle upright rod lifting and sleeve device, 758, a front fork outer side upright rod lifting and sleeve device, 759, a front shaft device, 760, a rear shaft device, 761, a rear wheel variable-pitch folding and accommodating cavity, a front fork outer side device, 763, a saddle upright rod device, 764, a chain device, 765, an electric spring locking and unlocking device, 766 and a front wheel folding and limiting groove device.

FIG. 24 is a schematic view of the suitcase type folding 2-wheel base-changeable rear box pedal bicycle simulation suitcase device.

FIG. 25 is a schematic view of the unfolding station of the suitcase type folding 2-wheel variable wheelbase rear box bicycle.

Reference numerals of embodiment 8 in fig. 24 and 25: 801. front travel case type chassis device, 802, rear travel case type chassis device, 803, hinge device, 804, handle device, 805, hinge axis position wiring hole, 806, hinge axis, 807, front wheel device, 808, stay spring locking device, 809, front travel case type chassis roller device, 810, rear travel case type chassis roller device, 811, front wheel fender device, 812, rear wheel device, 813, rear wheel fender device, 814, double upright rod lifting saddle device, 815, station locking device, 816, folding locking device, 817, rear frame device, 818, front fork suspension device, 819, front frame device, 820, rear wheel suspension device, 821, rear wheel folding storage cavity, 822, rear wheel folding variable-pitch vacated front wheel folding cavity, 823, front wheel inter-axle brake device, 824, rear wheel inter-axle brake device, 825, front fork outer double lifting folding handle device, 826. a lifting locking device of upright rods outside a front fork, 827, a 1 st axis, 828, a 2 nd axis, 829, a 3 rd axis, 830, a 4 th axis, 831, a front side device of a front suitcase type chassis, 832, a rear side device of the front suitcase type chassis, 833, a 1 st side device of the front suitcase type chassis, 834, a 2 nd side device of the front suitcase type chassis, 835, a front side device of a rear suitcase type chassis, 836, a rear side device of the rear suitcase type chassis, 837, a 1 st side device of the rear suitcase type chassis, 838, a 2 nd side device of the rear suitcase type chassis, 839, a double upright rod lifting folding handle storage cavity reserved in the front suitcase chassis and the rear suitcase chassis, 840, a double upright rod lifting saddle storage cavity reserved in the front suitcase chassis and the rear suitcase chassis, 841, a simulation suitcase device, 842, a rotary folding pedal device of a bicycle crank, 843, a pedal middle shaft device, 844 and a pedal folding limiting device, 845. axis driving gear device, 846, driven gear device, 847, chain gear device, 848, folding arm pedestal device, 849, fly gear device, 850, folding arm device, 851, heel brace device, 852, saddle pole setting lift locking device, 853, main shaft beam device, 854, saddle pole setting lift sleeve device, 855, fork outside pole setting lift sleeve device, 856, the folding cavity of accomodating of rear wheel variable-pitch, 857, fork outside pole setting device, 858, saddle pole setting device, 859, chain means, 860, guy wire spring locking switch device, 861, the folding spacing groove device of front wheel.

FIG. 26 is a schematic view of the structure of the bicycle crank rotary folding pedal device.

Figure 26 reference numerals for embodiment 9: 901. an integrated square sliding sleeve vehicle turning rotating pedal device comprises a 902 sliding sleeve frame device, a 903 sliding sleeve groove device, a 904 square sliding rod device, a 905 snap ring device, a 906 spring device, a 907 integrated square sliding sleeve device, a 908 square hole device, a 909 gasket-added square sliding sleeve vehicle turning rotating pedal device, a 910 square sliding sleeve snap ring device, a 911 square sliding sleeve gasket device, a 912 square sliding sleeve snap ring groove device, a 913 square opening bolt device, a 914 gasket-added square sliding sleeve device, a 915 sliding rod rotating shaft sleeve device.

Fig. 27 is a bevel gear transmission structure diagram of the suitcase type folding 2-wheel front box pedal electric bicycle.

Fig. 27 reference numbers for embodiment 10: 1001. the bicycle crank rotating and folding pedal device comprises a bicycle crank rotating and folding pedal device 1002, a pedal crank middle shaft device 1003, a pedal folding limiting device 1004, a crank middle shaft driving bevel gear device 1005, a gap bridge bevel gear device 1006, a gap bridge bevel gear shaft base device 1007, a driven bevel gear device 1008, a universal transmission shaft device 1009, a transmission shaft driving bevel gear device 1010, a bevel gear flywheel device 1011, a rear shaft device 1012 and a bevel gear shaft device.

Fig. 28 is a bevel gear transmission structure diagram of the suitcase type folding 2-wheel rear box pedal electric bicycle.

Figure 28 example 11 reference numbers: 1101. the bicycle crutch rotating and folding pedal device comprises a pedal middle shaft device 1102, a pedal middle shaft device 1103, a pedal folding limiting device 1104, a middle shaft driving bevel gear device 1105, a driven bevel gear device 1106, a universal transmission shaft device 1107, a transmission shaft driving bevel gear device 1108, a bevel gear flywheel device 1109 and a rear shaft device.

FIG. 29 is a schematic view of the bevel gear transmission structure of the crank central shaft of the suitcase type folding 2-wheel rear box pedal electric bicycle.

Figure 29 example 12 reference numbers: 1201. the bicycle crutch rotating and folding pedal device 1202, a pedal crank middle shaft device 1203, a pedal folding limiting device 1204, a crank middle shaft driving bevel gear device 1205, a driven bevel gear device 1206, a universal transmission shaft device 1207, a transmission shaft driving bevel gear device 1208, a bevel gear flywheel device 1209 and a rear shaft device.

FIG. 30 is a schematic view of the bevel gear transmission structure of the suitcase type foldable 2-wheel variable-wheelbase rear-box pedal electric bicycle.

Figure 30 example 13 reference numerals: 1301. the bicycle crutch rotating and folding pedal device comprises a bicycle crutch rotating and folding pedal device 1302, a pedal middle shaft device 1303, a pedal folding limiting device 1304, a middle shaft driving bevel gear device 1305, an intermediate bevel gear device 1306, a driven bevel gear device 1307, a transmission shaft device 1308, a transmission shaft driving bevel gear device 1309, a bevel gear flywheel device 1310, a rear shaft device 1311, a transmission shaft seat device 1312 and a folding arm device.

Detailed Description

Example 1.

As shown in fig. 1, 2 and 3, the folding 2-wheel folding front box pedal electric bicycle simulates a traveling case device 141 after folding, the hinge axis position wiring hole 105 is a wiring hole for a control pipeline between the front traveling case type chassis device 101 and the rear traveling case type chassis device 102, and the front traveling case type chassis device 101 and the rear traveling case type chassis device 102 are connected by a hinge device 103 at the position of a hinge axis 106; the front suitcase type chassis device 101 and the rear suitcase type chassis device 102 are unfolded to work positions, the rear side surface device 132 of the front suitcase type chassis is overlapped with the front side surface device 135 of the rear suitcase type chassis and is in a stressed state under the action of the hinge device 103 and the action of gravity, the work position locking device 115 locks the front suitcase type chassis device 101 and the rear suitcase type chassis device 102, and the middle position after the lower edge line of the rear side surface device 132 of the front suitcase type chassis is overlapped with the lower edge line of the front side surface device 135 of the rear suitcase type chassis is the position of the hinge axis 106.

Referring to fig. 4, which is a schematic view of a chain transmission structure of a suitcase type folding 2-wheel front box pedal electric bicycle, in a working position shown in fig. 2 and 4, a crank shaft driving gear device 145 extends from a position of a rear side groove device 159 of a front suitcase type chassis, and is connected with a driven gear device 146 through a rear suitcase type chassis front side groove device 158, the driven gear device 146 and a chain gear device 147 are mounted on a driven gear and chain gear shared shaft device 148 to rotate synchronously, the chain gear device 147 is connected with a flywheel gear device 150 to drive a rear wheel device 112 to realize a pedal function, and the crank shaft driving gear device 145 and the driven gear device 146 are in a separated state during the folding simulation suitcase device 141.

Referring to fig. 1, the crank center axis rotation folding device 160 shown in fig. 4 is used for folding the 1 st pedal and the 2 nd pedal, after which the 1 st pedal and the 2 nd pedal are respectively received at the side of the 1 st side device 133 of the front suitcase type chassis and the side of the 2 nd side device 134 of the front suitcase type chassis; the pedal crank central shaft device 143 is arranged in the area of the rear wheel folding containing cavity 121 of the front suitcase type chassis device 101, the crank central shaft rotating and folding device 160 and the pedal folding limiting device 144 are used for limiting the folding of the bicycle crank rotating and folding pedal device 142, and the pedal crank central shaft device 143 and the rear wheel device 112 do not interfere with each other in the process of folding the simulation suitcase device 141; the folding principle of the crank shaft rotation folding device 160 is explained in embodiment 9.

As shown in FIG. 2, the sides of the 1 st and 2 nd outer upright tube sleeve devices 163 of the outer double upright tube handle device 125 are respectively fixed at the 1 st and 2 nd ends of the main shaft beam device 161, and the 1 st end of the front fork suspension device 118 is respectively fixed between the main shaft of the main shaft beam device 161 and the 1 st end of the main shaft beam device 161 or between the main shaft and the 2 nd end of the main shaft beam device 161, namely, the main shaft of the main shaft beam device 161 is hinged with the front frame device 119 inside the outer upright tube sleeve device 163 of the front fork, the ascending and descending of the outer upright tube 166 of the front fork and the front fork suspension device 118 do not interfere with each other, as shown in FIG. 1, the outer upright tube 166 of the front fork is reserved in the double upright tube handle storage 139 of the suitcase on the front and rear chassis, and the outer upright tube device 166 of the front fork and the front frame device 119 and the rear frame device 117 do not interfere with each other during the lifting process or the rotary folding process of the suitcase type chassis device 101 and the rear suitcase type chassis device 102 Relates to.

The 1 st and 2 nd saddle upright lifting sleeve devices 162 of the double upright lifting hollow saddle device 114 shown in fig. 3 are respectively fixed on the 1 st and 2 nd outer sides of the longitudinal beams of the 1 st and 2 nd longitudinal beams of the 2 nd rear frame devices 117, the double upright lifting hollow saddle device 114 shown in fig. 1 is stored in the reserved double upright lifting saddle storage cavity 140 of the front and rear travel case chassis, and the saddle upright device 167 does not interfere with the front frame device 119 and the rear frame device 117 in the lifting process or the opposite rotating and folding processes of the front travel case chassis device 101 and the rear travel case chassis device 102.

As shown in fig. 1, 2 and 3, the front wheel unit 107 is mounted on the front fork suspension 118 at the abscissa position of the 1 st axis 127 of the front travel box type chassis unit 101, and the front wheel unit 107 can vertically vibrate due to different loads in the vertical direction; the front wheel fold receiving cavity 122 is dually reserved at the position of the abscissa of the 4 th axis 130; the rear wheel assembly 112 is mounted on the rear wheel suspension 120 at a position along the abscissa of the 3 rd axis 134; the rear wheel fold receiving cavity 121 is dually reserved at the position on the abscissa of the 2 nd axis 128; the front travel suitcase chassis 101 and the rear travel suitcase chassis 102 are rotated 90 degrees relative to each other and simulate a travel suitcase assembly 141, with the 1 st axis 127 coinciding with the 4 th axis 130 and the 2 nd axis 128 coinciding with the 3 rd axis 129 after folding.

Example 2.

As shown in FIG. 6, the front wheel assembly 207 of the suitcase type foldable 2-wheel front box bicycle is mounted on the front fork suspension device 218 at the position of the abscissa of the 1 st axis 227 of the front suitcase type chassis device 201, and the front wheel folding housing cavity 122 is dually reserved at the position where the telescopic rear frame device 208 is unfolded; as shown in fig. 6, the folding limiting frame device 211 of the front suitcase chassis is folded to contact with the folding limiting frame device 213 of the rear suitcase, and is fixed by the folding locking device 216, so that the front suitcase chassis device 201 and the rear suitcase chassis device 202 are combined to simulate a suitcase device 241.

Before folding, as shown in fig. 5 and 6, the rear telescopic frame locking device 205 is opened, the telescopic rear frame 208 is lengthened, the length of the front suitcase type chassis device 201 is equal to that of the rear suitcase type chassis device 202, and the front suitcase type chassis roller device 209 and the rear suitcase type chassis roller device 210 fall to the ground on the same horizontal plane after folding; example 2 is compared with example 1 and the frame box structure is not provided with a battery storage device, a controller device, a hub motor device and the structure of other parts is the same, and the explanation is not repeated.

Example 3.

As shown in fig. 7, the pedal middle shaft device 343 of the suitcase type folding 2-wheel rear-box pedal electric bicycle is mounted on the rear suitcase type chassis device 302, the middle shaft device does not interfere with the front wheel device 307 and the rear wheel fender device 313 in the area sandwiched between the wheel edge of the front wheel device 307 and the rear wheel fender device 313 after folding, the sprocket gear device 345 is connected with the flywheel gear device 346, and the pedal drives the rear wheel device 312 to realize the pedal riding function.

As shown in fig. 9, the front wheel assembly 307 is mounted on the 2 nd axis front fork suspension 318, the front wheel folding receiving cavity 322 is on the 3 rd axis 329, the rear wheel assembly 312 is mounted on the 4 th axis 330, the telescopic front frame assembly 319 is unfolded to reserve the rear wheel folding receiving cavity 321 on the 1 st axis 328, the 1 st axis 328 is only after the telescopic front frame assembly 319 is unfolded, the length of the front suitcase type chassis assembly 301 is equal to that of the rear suitcase type chassis assembly 302, the folded rear simulation suitcase type chassis assembly 341, and the 1 st axis 328 is coincident with the 4 th axis 330; the principle of the double-upright-rod lifting handle device 325 and the double-upright-rod lifting saddle device 314 on the outer side of the front fork is the same as that of the embodiment 1, and the explanation is not repeated.

Example 4.

Referring to fig. 12, a travel suitcase type folding 2-wheel rear box bicycle simulation travel suitcase device 441 is shown, and compared with embodiment 3, embodiment 4 has no battery storage device, controller device, hub motor device and other parts with the same structure and will not be explained repeatedly.

Example 5.

As shown in fig. 15, the pedal crank center shaft device 543 of the suitcase type folding 2-wheel rear box pedal crank center shaft electric bicycle is installed in the region of the front wheel folding containing cavity 522 of the rear suitcase type chassis device 502, the folding process of the folding simulation suitcase device 541 is limited by the pedal folding limiting device 544, so that the pedal crank center shaft device 543 does not interfere with the front wheel device 507, the rotation process of the pedal crank center shaft device 543 does not interfere with the rear wheel device 512 or the rear wheel fender device 513, and the rotation process of the unfolding station pedal crank center shaft device 543 does not interfere with the rear wheel fender device 513; the chain gear device 545 is connected with the flying gear device 546 to drive the rear wheel device 512 to realize the pedal riding function; embodiment 5 is compared with embodiment 3, only the pedal crank middle shaft device 543 is different from the pedal middle shaft device 343, the principle of the double-upright lifting handle device 525 and the double-upright lifting saddle device 514 outside the front fork is the same as that of embodiment 1, and the explanation is not repeated.

Example 6.

Referring to fig. 17, a schematic view of the apparatus of the travel suitcase type foldable 2-wheel rear suitcase pedal crank axle bicycle simulating travel suitcase is shown, wherein the rear travel suitcase type chassis 1 st side device 637 and the rear travel suitcase type chassis 2 nd side device 638 are recessed toward the rear wheels in the pedal rotation area, respectively, in order to reduce the protrusion of the folding pedal device 642 from the rear travel suitcase type chassis 1 st side device 637 and the rear travel suitcase type chassis 2 nd side device 638; example 6 is compared with example 5 without a battery storage device, a controller device, a hub motor device and other parts with the same structure, and the explanation is not repeated.

Example 7.

As shown in fig. 21, in the suitcase type folding 2-wheel variable-wheelbase rear-box pedal electric bicycle, the 1 st end and the 2 nd end of the front axle unit 759 of the front wheel unit 707 are respectively mounted on the front fork suspension 718 at the position of the abscissa of the 1 st axis 727 of the front suitcase type chassis unit 701; the 1 st and 2 nd ends of the rear axle assembly 760 of the rear wheel assembly 712 are each mounted on the rear wheel suspension 720 at a location on the abscissa of the 4 th axis 730; the rear wheel variable-wheelbase folding and accommodating cavity 761 is dually reserved at the position of the abscissa of the 3 rd axis 729; the rear wheel fold receiving cavity 721 dual pre-sets in a position abscissa on the 2 nd axis 728; the front wheel folding containing cavity 722 vacated by the rear wheel folding variable-wheel-pitch is dually reserved at the position of the abscissa of the 4 th axis 730; the 1 st end hinge device of the folding arm device 754 is connected with the folding arm shaft seat device 748; the folding arm device 754 is connected with the rear wheel suspension device 720 at the 2 nd end by a movable hinge device; the movable hinge device is 4 electric spring locking devices 708, 1 electric spring locking switch device 765 is used for controlling 4 electric spring locking devices 708 to be synchronously opened in the process of changing the wheel base so as to finish synchronous closing of 4 electric spring locking devices 708 after the wheel base is changed, the 4 electric spring locking devices 708 are normally closed, and the rear wheel fender device 713 and the front wheel folding limiting groove device 766 are fixed on the 1 st longitudinal beam and the 2 nd longitudinal beam of the rear frame device 717 and do not participate in the variable wheel base rotation of the rear wheel; the front travel suitcase chassis unit 701 is connected to the rear travel suitcase chassis unit 702 by a hinge unit 703 at a location that is abscissa of the hinge axis 706.

As shown in fig. 20, which is a schematic view of a chain transmission structure of a suitcase type folding 2-wheel variable-wheelbase rear-box pedal electric bicycle, a pedal middle shaft device 743 is installed on a rear suitcase type chassis device 702, a middle shaft driving gear device 745 is connected with a driven gear device 746, the driven gear device 746, a sprocket gear device 747 and the 1 st end of a folding arm device 754 are coaxially installed on a folding arm shaft seat device 748, the driven gear device 746 and the sprocket gear device 747 rotate synchronously, and the sprocket gear device 747 is connected with a flywheel gear device 749 to drive a rear wheel device 712 to realize a pedal riding function; the driving gear 745 and the driven gear 746 are connected after being folded to simulate the traveling case 741 process; the foot-pedal central shaft device 743 is arranged on the rear travel suitcase type chassis device 702, and in the area between the wheel edge of the folded front wheel device 707 and the wheel edge of the rear wheel device 712 or the rear wheel fender device 713, the foot-pedal central shaft device 743 does not interfere with the front wheel device 707 or the rear wheel device 712 or the rear wheel fender device 713; the principle of the double-upright-rod lifting handle device 725 and the double-upright-rod lifting saddle device 714 on the outer side of the front fork is the same as that of the embodiment 1, and the explanation is not repeated.

Example 8.

Fig. 24 is a schematic view showing a suitcase-type foldable 2-wheel axle-distance-variable rear-case pedal bicycle simulation suitcase device, in example 8, compared with example 7, the difference is that a stay spring locking device 808 is adopted, in the axle-distance-variable process, 1 stay spring locking switch device 860 is used for controlling 4 stay spring locking devices 808 to be synchronously opened, the axle-distance-variable bicycle simulation suitcase is synchronously closed, the 4 stay spring locking devices 808 are normally closed, and then a battery storage device, a controller device and a hub motor device are not provided, and the structures of other parts are the same and are not repeatedly explained.

Example 9.

As shown in fig. 25, which is a schematic structural view of a bicycle crank rotating and folding pedal device, the integrated square sliding sleeve bicycle crank rotating pedal device comprises a sliding sleeve frame device 902, a snap ring groove device 903, a square sliding rod device 904, a snap ring device 905, a spring device 906, an integrated square sliding sleeve device 907, a square bolt device 913, a square hole device 908, and a sliding rod rotating shaft sleeve device 915; the folding pedal device is compressed towards the spring device 906 by using fingers, so that the square-mouth pin device 913 exits from the square-hole device 908, and after the square-slide-bar device rotates for 90 degrees, the square-mouth pin device 913 is inserted into the square-hole device 908, so that the folding of the integrated square-sliding-sleeve vehicle crutch rotating pedal device 901 is realized.

As shown in fig. 25, the schematic structural diagram of a bicycle crutch rotation folding pedal device is shown, and the gasket-added square sliding sleeve bicycle crutch rotation pedal device includes a square sliding sleeve snap ring device 910, a square sliding sleeve gasket device 911, a square sliding sleeve snap ring groove device 912, a spring device 906, a sliding sleeve frame device 902, a square sliding rod device 904, a snap ring device 905, a snap ring groove device 903, a gasket-added square sliding sleeve device 914, a square opening plug pin device 913, a square hole device 908, and a sliding rod rotation shaft sleeve device 915; the folding pedal device is compressed towards the spring device 906 by using fingers to enable the square-mouth bolt device 913 to exit from the square-hole device 908, and after the square-shaped slide rod device 904 rotates for 90 degrees, the square-mouth bolt device 913 is inserted into the square-hole device 908, so that the square-sleeve bicycle corner rotating pedal device 909 with the gasket is folded.

Example 10.

Fig. 27 is a schematic view of a bevel gear transmission structure of a suitcase type folding 2-wheel front box pedal electric bicycle, embodiment 10 is 1 module of embodiment 1 or embodiment 2, the bevel gear transmission structure of embodiment 10 can replace the chain transmission structure of embodiment 1 or embodiment 2, for example, in a working position state, as shown in fig. 4 and fig. 27, a crank middle shaft driving bevel gear 1004 extends from the position of a rear side groove device 159 of a front suitcase type chassis to be connected with a gap bridge bevel gear 1005 through a front side groove device 158 of the rear suitcase type chassis, the gap bridge bevel gear 1005 is connected with a driven bevel gear device 1007, the driven bevel gear 1007 is connected with a driving bevel gear device of a transmission shaft device or a universal transmission shaft device 1008, and the driving bevel gear 1008 of the transmission shaft is connected with a bevel gear flywheel device 1010 to realize the riding function of the pedal driving rear wheel device; if the tyre is damped without suspension damping, a transmission shaft device can be adopted, and a universal transmission shaft device 1008 is not required.

Example 11.

Fig. 28 is a schematic view of a bevel gear transmission structure of a suitcase type folding 2-wheel rear box pedal electric bicycle, embodiment 11 is 1 module of embodiment 3 or embodiment 4, the bevel gear transmission structure of embodiment 11 can replace a chain transmission structure in embodiment 3 or embodiment 4, a middle shaft driving bevel gear 1104 is connected with a driven bevel gear 1105, the driven bevel gear 1105 is connected with a transmission shaft driving bevel gear 1107 through a universal transmission shaft device 1106, and the transmission shaft driving bevel gear 1107 is connected with a bevel gear flywheel 1108 to realize a riding function of a pedal driving rear wheel device.

Example 12.

Fig. 29 is a schematic diagram of a bevel gear transmission structure of a crank center shaft of a suitcase type folding 2-wheel rear box pedal electric bicycle, wherein embodiment 12 is 1 module of embodiment 5 or embodiment 6, the bevel gear transmission structure of embodiment 12 can replace a chain transmission structure of embodiment 5 or embodiment 6, a drive bevel gear device 1204 of the crank center shaft is connected with a driven bevel gear device 1205, the driven bevel gear device 1205 is connected with a drive bevel gear device 1207 of a drive shaft through a universal drive shaft device 1206, and the drive bevel gear device 1207 of the drive shaft is connected with a bevel flywheel device 1208 to realize a riding function of driving the rear wheel device by foot pedal.

Example 13.

Fig. 30 is a schematic view of a bevel gear transmission structure of a suitcase type folding 2-wheel variable-wheelbase rear-box pedal electric bicycle, wherein an embodiment 13 is 1 module of an embodiment 7 or an embodiment 8, the bevel gear transmission structure of the embodiment 13 can replace a chain transmission structure of the embodiment 7 or the embodiment 8, a shaft drive bevel gear device 1304 in a working position state is connected with a bridge bevel gear device 1305, the bridge bevel gear device 1305 is connected with a driven bevel gear device 1306, the driven bevel gear device 1306 is connected with a transmission shaft drive bevel gear device 1308 through a transmission shaft device 1307, the transmission shaft drive bevel gear device 1308 is connected with a bevel flywheel device 1309 to realize a riding function of the pedal drive rear-wheel device, the transmission shaft device 1307 is installed on a transmission shaft seat device 1311 of a folding arm device 1312, and the folding process transmission shaft device 1307 rotates and folds along with the folding arm device.

The above-described embodiments are preferred embodiments of the present invention, and do not limit the scope of the claims, so that equivalent changes and modifications of the structures, features and principles described in the present invention are within the protection scope of the claims.

Claims

1. A suitcase type folding electric bicycle comprises a front suitcase type chassis device; a rear suitcase type chassis device; a battery storage device or a battery-less storage device; an in-wheel motor arrangement or a hubless motor arrangement; a controller device or no controller device; a control line device; a transmission device; a steering device; a braking device; a front wheel device; a rear wheel device; the front wheel folding and accommodating cavity or the front wheel folding and accommodating cavity vacated by the rear wheel folding and variable wheelbase; the rear wheel folding and accommodating cavity or the rear wheel folding and accommodating cavity and the rear wheel folding variable-wheelbase accommodating cavity are formed in the front wheel folding and accommodating cavity; the front wheel suspension device or the suspension device without the front wheel is damped by the tire; the rear wheel suspension device or the rear wheel folding arm suspension device or the rear wheel-free suspension device is damped by tires; a front wheel fender device or a front wheel-free fender device; a rear wheel fender device or a rear wheel-free fender device; a front frame assembly; a rear frame device; a double upright rod lifting handle device; a double upright lifting saddle device; a cavity for accommodating a double-upright-rod lifting handle is reserved on the chassis of the front and rear traveling cases; a double-upright-rod lifting saddle accommodating cavity is reserved on the front and rear travel suitcase chassis; a hinge device; a hinge axis; a folding foot pedal device; a simulated travel case device; unfolding the station; folding stations; 1 st axis; a 2 nd axis; a 3 rd axis; a 4 th axis; the front suitcase type chassis device is connected with the rear suitcase type chassis device by a hinge device at the position of a hinge axis;

the method is characterized in that: the front wheel device is arranged at the 1 st axial line position of the front travel box type chassis device, the rear wheel device is arranged at the 3 rd axial line position of the rear travel box type chassis device, the crank middle shaft driving gear device extends out from the position of the rear side face groove device of the front travel box type chassis and is connected with the driven gear device through the rear side face groove device of the rear travel box type chassis, the driven gear device and the chain gear device are arranged on the driven gear and the chain gear shaft device to synchronously rotate, the chain gear device is connected with the fly gear device to drive the rear wheel device to realize the pedal riding function,

or the front wheel device is arranged at the 1 st axial line position of the front travel box type chassis device, the rear wheel device is arranged at the 3 rd axial line position of the rear travel box type chassis device, the crank middle shaft driving bevel gear device extends out from the position of the rear side surface groove device of the front travel box type chassis and is connected with the gap bridge bevel gear device through the rear travel box type chassis front side surface groove device, the gap bridge bevel gear device is connected with the driven bevel gear device, the driven bevel gear device is connected with the transmission shaft driving bevel gear device through the transmission shaft device or the universal transmission shaft device, the transmission shaft driving bevel gear device is connected with the bevel gear flywheel device to drive the rear wheel device to realize the pedal function,

or the front wheel device is arranged at the 2 nd axial line position of the front travel box type chassis device, the rear wheel device is arranged at the 4 th axial line position of the rear travel box type chassis device, the pedal central shaft device is arranged on the rear travel box type chassis device, the chain gear device is arranged on the pedal central shaft device, the chain gear device is connected with the fly gear device to drive the rear wheel device to realize the pedal riding function, the pedal central shaft device is arranged in the area between the edge of the front wheel device and the edge of the rear wheel device or the rear wheel mudguard device when the travel box simulating device is folded, the pedal central shaft device is not interfered with the front wheel device or the rear wheel mudguard device,

or the front wheel device is arranged at the 2 nd axial line position of the front travel box type chassis device, the rear wheel device is arranged at the 4 th axial line position of the rear travel box type chassis device, the pedal middle shaft device is arranged on the rear travel box type chassis device, the middle shaft driving bevel gear device is arranged on the pedal middle shaft device, the middle shaft driving bevel gear device is connected with the driven bevel gear device, the driven bevel gear device is connected with the transmission shaft driving bevel gear device through the transmission shaft or the universal transmission shaft device, the transmission shaft driving bevel gear device is connected with the bevel gear flywheel device to realize the riding function of the pedal driving rear wheel device, the pedal device does not interfere with the front wheel device or the rear wheel mudguard device in the area between the middle shaft edge of the front wheel device and the wheel edge of the rear wheel device or the rear wheel mudguard device during the folding simulation travel box device,

or the front wheel device is arranged at the 2 nd axial line position of the front travel box type chassis device, the rear wheel device is arranged at the 4 th axial line position of the rear travel box type chassis device, the pedal crank central shaft device is arranged on the rear travel box type chassis device, the chain gear device is arranged on the pedal crank central shaft device, the chain gear device is linked with the fly gear device to drive the rear wheel device to realize the pedal riding function, the pedal crank central shaft device is arranged in the area of the folding and containing cavity of the front wheel device of the rear travel box type chassis device, the pedal folding limiting device is used for limiting in the process of folding the simulation travel box device to ensure that the pedal crank central shaft device and the front wheel device do not interfere with each other, and the rotation process of the pedal crank central shaft device and the rear wheel device or the rear wheel mudguard device do not interfere with each other,

or the front wheel device is arranged at the 2 nd axial line position of the front travel box type chassis device, the rear wheel device is arranged at the 4 th axial line position of the rear travel box type chassis device, the pedal crank middle shaft device is arranged on the rear travel box type chassis device, the crank middle shaft device bevel gear device is arranged on the pedal crank middle shaft device, the pedal crank middle shaft device bevel gear device is connected with the driven bevel gear device, the driven bevel gear device is connected with the transmission shaft driving bevel gear device through the transmission shaft device or the universal transmission shaft device, the driving bevel gear device is connected with the bevel gear flywheel device to realize the riding function of the pedal driving rear wheel device, the pedal crank middle shaft device is arranged at the front wheel folding and containing cavity area of the rear travel box type chassis device, the pedal folding and limiting device is used for limiting in the process of folding the simulation travel box device to ensure that the pedal crank middle shaft device and the front wheel device are not interfered mutually, The rotation process of the pedal crank middle shaft device does not interfere with the rear wheel device or the rear wheel fender device,

or the front wheel device is arranged at the 1 st axial line position of the front travel box type chassis device, the rear wheel device is arranged at the 4 th axial line position of the rear travel box type chassis device, the pedal central shaft device is arranged on the rear travel box type chassis device, the central shaft driving gear device is connected with the driven gear device, the chain gear device and the 1 st end of the folding arm device are coaxially arranged on the folding arm shaft seat device, wherein the 1 st end of the folding arm device is hinged with the folding arm shaft seat device, the 2 nd end of the folding arm device is movably hinged with the rear wheel suspension device, the driven gear device and the chain gear device synchronously rotate, the chain gear device is connected with the flying gear device to drive the rear wheel device to realize the pedal function, the pedal central shaft device is arranged in the area clamped by the edge of the front wheel device and the edge of the rear wheel device or the rear wheel mudguard device when the travel box device is folded, the pedal central shaft device and the front wheel device or the rear wheel mudguard device do not interfere with each other,

or the front wheel device is arranged at the 1 st axis position of the front travel box type chassis device, the rear wheel device is arranged at the 4 th axis position of the rear travel box type chassis device, the pedal middle shaft device is arranged on the rear travel box type chassis device, the middle shaft driving bevel gear device is connected with the intermediate bevel gear device, the intermediate bevel gear device is connected with the driven bevel gear device, the driven bevel gear device is connected with the transmission shaft driving bevel gear device through the transmission shaft device or through the universal transmission shaft device, the transmission shaft driving bevel gear device is connected with the bevel gear flywheel device to drive the rear wheel device to realize the pedal riding function, the pedal middle shaft device is arranged in the area between the edge of the front wheel device and the edge of the rear wheel device or between the edge of the rear wheel fender device and the rear wheel fender device when the travel box device is folded to simulate, and the pedal middle shaft device is not interfered with the front wheel device or between the rear wheel fender device;

at least 1 front wheel device is arranged on the front travel suitcase type chassis device; and at least 1 rear wheel device is arranged on the rear suitcase type chassis device.

2. The traveling case type foldable electric bicycle as claimed in claim 1, wherein: the simulation travel suitcase device comprises a front travel suitcase type chassis device, a rear travel suitcase type chassis device, a front side device of the front travel suitcase type chassis, a rear side device of the front travel suitcase type chassis, a 1 st side device of the front travel suitcase type chassis, a 2 nd side device of the front travel suitcase type chassis, a front side device of the rear travel suitcase type chassis, a rear side device of the rear travel suitcase type chassis, a 1 st side device of the rear travel suitcase type chassis, a 2 nd side device of the rear travel suitcase type chassis, a front frame device, a rear frame device, a hinge axis position wiring hole or a hinge-axis-free position wiring hole, a handle device, a hinge axis, a front travel suitcase type chassis roller device or a front travel suitcase-free chassis rolling energy device, a rear travel suitcase type chassis roller device or a rear travel suitcase-free chassis roller device; the front side device of the front suitcase type chassis, the rear side device of the front suitcase type chassis, the 1 st side device of the front suitcase type chassis and the 2 nd side device of the front suitcase type chassis are combined and fixed on the front frame device; the front side device of the rear suitcase type chassis, the rear side device of the rear suitcase type chassis, the 1 st side device of the rear suitcase type chassis and the 2 nd side device of the rear suitcase type chassis are combined and fixed on the rear frame device; the front suitcase type chassis device is connected with the rear suitcase type chassis device by a hinge device at the position of a hinge axis; the front suitcase type chassis device and the rear suitcase type chassis device respectively rotate in opposite directions by taking the hinge axis as an axis and simulate a suitcase device; the front wheel device and the rear wheel device are both contained in the simulation travel suitcase device.

3. The traveling case type foldable electric bicycle as claimed in claim 1, wherein: the integrated square sliding sleeve vehicle corner rotating pedal device comprises a sliding sleeve frame device, a clamping ring groove device, a square sliding rod device, a clamping ring device, a spring device, an integrated square sliding sleeve device, a square-opening bolt device, a square hole device and a sliding rod rotating shaft sleeve device; the folding pedal device is compressed by pointing the hand to the direction of the spring device, so that the square-mouth bolt device exits from the square-hole device, and the square-mouth bolt device is inserted into the square-hole device after the square-slide-bar device rotates for 90 degrees, thereby realizing the folding of the integrated square-sliding-sleeve vehicle corner rotating pedal device.

4. The traveling case type foldable electric bicycle as claimed in claim 1, wherein: the travel suitcase type folding electric bicycle further comprises a travel suitcase type folding 2-wheel front box pedal electric bicycle, the travel suitcase type folding 2-wheel rear box pedal crank middle shaft electric bicycle, the travel suitcase type folding 2-wheel variable-wheelbase rear box pedal electric bicycle and the travel suitcase type folding 2-wheel variable-wheelbase rear box pedal electric bicycle.

5. The suitcase-type foldable electric bicycle as claimed in claim 2, 3 or 4, further comprising: wherein said travel

The box-type folding 2-wheel front box pedal electric bicycle comprises a front box-type chassis device, a rear box-type chassis device, a hinge device, a handle device, a hinge axis position wiring hole, a hinge axis, a front wheel device, a backward turning prevention roller device, a front box-type chassis roller device, a rear box-type chassis roller device, a front wheel fender device, a rear wheel fender device, a double-upright-rod lifting hollow saddle device, a station locking device, a folding locking device, a rear frame device, a front fork suspension device, a front frame device, a rear wheel suspension device, a rear wheel folding storage cavity, a front wheel inter-axle brake device, a rear wheel inter-axle brake device, a front fork outer double-upright-rod lifting handle device, a front fork outer-side upright-rod lifting locking device, a 1 st axis, a 2 nd axis, a 3 rd axis, a 4 th axis and a front box-type travel chassis front side surface device, a rear side device of a front suitcase type chassis, a 1 st side device of the front suitcase type chassis, a 2 nd side device of the front suitcase type chassis, a front side device of a rear suitcase type chassis, a rear side device of the rear suitcase type chassis, a 1 st side device of the rear suitcase type chassis, a 2 nd side device of the rear suitcase type chassis, a double-upright-rod lifting handle containing cavity reserved on the front and rear suitcase chassis, a double-upright-rod lifting saddle containing cavity reserved on the front and rear suitcase chassis, a simulation suitcase device, a bicycle crutch rotating and folding pedal device, a pedal crank middle shaft device, a pedal folding limiting device, a crank middle shaft driving gear device, a driven gear device, a chain gear device, a driven gear and chain gear sharing shaft device, a driven gear and chain gear coaxial mounting shaft seat device, a fly gear device, an electric vehicle controller device, a battery storage device and a rear wheel hub motor device, the device comprises a saddle upright rod lifting locking device, a crank middle shaft seat device, a rear wheel suspension shaft seat device, a rear suitcase type chassis front side groove device, a front suitcase type chassis rear side groove device, a crank middle shaft rotary folding device, a main shaft cross beam device, a saddle upright rod lifting sleeve device, a front fork outer side upright rod lifting sleeve device, a front shaft device, a rear shaft device, a front fork outer side upright rod device, a saddle upright rod device, a hollow saddle device, a chain device and a front wheel folding limiting groove device; the front wheel device is arranged on a front fork suspension device at the position of the abscissa of the 1 st axis of the front travel box type chassis device; the rear wheel device is arranged on a rear wheel suspension device at the 3 rd axis abscissa position of the rear suitcase type chassis device; the rear wheel folding and accommodating cavity is dually reserved at the position of the abscissa of the 2 nd axis; the front wheel folding and accommodating cavity is dually reserved at the position of the abscissa of the 4 th axis; the front suitcase type chassis device and the rear suitcase type chassis device are connected by a hinge device at the position of a hinge axis, the front suitcase type chassis device and the rear suitcase type chassis device respectively rotate in opposite directions by taking the hinge axis as an axis and combine a simulation suitcase device, and the front wheel device and the rear wheel device are contained in the simulation suitcase device; the working position state crank middle shaft driving gear device extends out of the position of a rear side face groove device of the front traveling box type chassis device and is connected with a driven gear device through the rear traveling box type chassis front side face groove device, the driven gear device and a chain gear device are arranged on a driven gear and a chain gear shaft device to synchronously rotate, and the chain gear device is connected with a fly gear device to drive a rear wheel device to realize a pedal riding function; when the folding simulation travel box device is used, the driving gear device and the driven gear device of the crank middle shaft are in a separated state; the crank middle shaft rotating and folding device is used for folding the 1 st pedal and the 2 nd pedal, and the 1 st pedal and the 2 nd pedal are respectively contained on the side surface of the 1 st side surface device of the front suitcase type chassis and the side surface of the 2 nd side surface device of the front suitcase type chassis after being folded; the 1 st and 2 nd front fork outer side upright rod lifting sleeve devices of the front fork outer side double upright rod lifting handle device are respectively fixed at the 1 st end and the 2 nd end of the main shaft beam device; the 1 st and 2 nd front fork devices or the 1 st end of the front fork suspension device are respectively inserted and fixed between the main shaft of the main shaft cross beam device and the 1 st end of the main shaft cross beam device or between the main shaft and the 2 nd end of the main shaft cross beam device, namely the inner side of the lifting sleeve device is erected outside the front fork, and the main shaft of the main shaft cross beam device is hinged with the front frame device; the lifting and descending of the upright device at the outer side of the front fork are not interfered with the suspension of the front fork, the double upright lifting handle devices at the outer side of the front fork are accommodated in the accommodating concave cavities of the double upright lifting handles reserved on the front and rear travel case chassis, and the upright device at the outer side of the front fork is not interfered with the front frame device or the rear frame device in the lifting process or the process that the front travel case type chassis device and the rear travel case type chassis device rotate and fold in opposite directions; the 1 st and 2 nd saddle upright lifting sleeve devices of the double upright lifting hollow saddle device are respectively fixed on the outer sides of the 1 st and 2 nd longitudinal beams of the rear frame device, the 1 st ends of the 1 st and 2 nd saddle upright devices are respectively inserted into the 1 st and 2 nd saddle upright lifting sleeve devices, and the 2 nd ends of the 1 st and 2 nd saddle upright devices are fixed on the hollow saddle device; the double-upright-rod lifting hollow saddle device is accommodated in a double-upright-rod lifting saddle accommodating concave cavity reserved in the front and rear travel case chassis, and the saddle upright rod device does not interfere with the front frame device or the rear frame device in the lifting process or the process that the front travel case type chassis device and the rear travel case type chassis device rotate and fold in opposite directions; the pedal crank central shaft device is arranged in the area of a rear wheel folding and containing cavity of the front suitcase type chassis device, and the crank central shaft rotating and folding device and the pedal folding limiting device are used for limiting the folding of the bicycle crank rotating and folding pedal device and simulating the process of the suitcase folding, and the pedal crank central shaft device and the rear wheel device are not interfered with each other.

6. The traveling case type foldable electric bicycle as claimed in claim 2 or 4, wherein: wherein the suitcase type folding 2-wheel front box pedal bicycle comprises a front suitcase type chassis device, a rear suitcase type chassis device, a hinge device, a handle device, a telescopic rear frame locking device, a hinge axis, a front wheel device, a telescopic rear frame device, a front suitcase type chassis roller device, a rear suitcase type chassis roller device, a front suitcase chassis folding limiting frame device, a rear wheel device, a rear suitcase folding limiting frame device, a double-upright-rod lifting hollow saddle device, a station locking device, a folding locking device, a crank middle shaft seat device, a front fork suspension device, a front frame device, a rear wheel suspension device, a rear wheel folding storage cavity, a front wheel inter-axle braking device, a rear wheel inter-axle braking device, a front fork outer double-upright-rod lifting handle device, a front fork outer-upright-rod lifting locking device and a 1 st axis, a 2 nd axis, a 3 rd axis, a front side device of a front travel case type chassis, a rear side device of the front travel case type chassis, a 1 st side device of the front travel case type chassis, a 2 nd side device of the front travel case type chassis, a front side device of a rear travel case type chassis, a rear side device of the rear travel case type chassis, a 1 st side device of the rear travel case type chassis, a 2 nd side device of the rear travel case type chassis, a double-upright-rod lifting handle containing cavity reserved on the front travel case chassis and the rear travel case chassis, a double-upright-rod lifting saddle containing cavity reserved on the front travel case chassis and the rear travel case chassis, a simulation travel case device, a bicycle crank rotating and folding pedal device, a pedal crank central shaft device, a pedal folding limiting device, a bridge bevel gear device, a driven bevel gear device, a bevel gear shaft device, a bridge bevel gear shaft seat device, a transmission shaft driving bevel gear device, a bevel gear flywheel device and a rear wheel suspension shaft seat device, a driven gear and a chain gear are coaxially arranged on a shaft seat device, a crank middle shaft rotating and folding device, a saddle vertical rod lifting locking device, a main shaft beam device, a saddle vertical rod lifting sleeve device, a front fork outer side vertical rod lifting sleeve device, a front shaft device, a rear shaft device, a front fork outer side vertical rod device, a saddle vertical rod device and a universal transmission shaft device; the front wheel device is arranged on a front fork suspension device at the position of the abscissa of the 1 st axis of the front travel box type chassis device; the rear wheel device is arranged on a rear wheel suspension device at the 3 rd axis abscissa position of the rear suitcase type chassis device; the rear wheel folding and accommodating cavity is dually reserved at the position of the abscissa of the 2 nd axis; the folding and containing cavity of the front wheel is reserved at the unfolding position of the telescopic rear frame device in a dual mode; the working position state crank middle shaft driving bevel gear device extends out from the position of a rear side groove device of the front travel box type chassis to be connected with a gap bridge bevel gear device through the front side groove device of the rear travel box type chassis, the gap bridge bevel gear device is connected with a driven bevel gear device, the driven bevel gear device is connected with a transmission shaft driving bevel gear device through a universal transmission shaft device, and the transmission shaft driving bevel gear device is connected with a bevel gear flywheel device to realize the riding function of the pedal driving rear wheel device; the pedal crank central shaft device is arranged in the area of a rear wheel folding and containing cavity of the front suitcase type chassis device, and the crank central shaft rotating and folding device and the pedal folding limiting device are used for limiting the folding of the bicycle crank rotating and folding pedal device and simulating the process of the suitcase folding, and the pedal crank central shaft device and the rear wheel device are not interfered with each other.

7. The traveling case type foldable electric bicycle as claimed in claim 2 or 4, wherein: wherein the suitcase type folding 2-wheel rear-box pedal electric bicycle comprises a front suitcase type chassis device, a rear suitcase type chassis device, a hinge device, a handle device, a hinge axis position wiring hole, a hinge axis, a front wheel device, a front telescopic frame locking device, a front suitcase type chassis roller device, a rear suitcase type chassis roller device, a front wheel fender device, a rear wheel fender device, a double-upright-rod lifting saddle device, a station locking device, a folding locking device, a rear frame device, a front fork suspension device, a telescopic front frame device, a rear wheel suspension device, a rear wheel folding storage cavity, a front wheel inter-axle braking device, a rear wheel inter-axle braking device, a front fork outer double-upright-rod lifting handle device, a front fork outer-upright-rod lifting locking device, a 1 st axis, a 2 nd axis and a 3 rd axis, a 4 th axis, a front side device of a front travel case type chassis, a rear side device of the front travel case type chassis, a 1 st side device of the front travel case type chassis, a 2 nd side device of the front travel case type chassis, a front side device of a rear travel case type chassis, a rear side device of the rear travel case type chassis, a 1 st side device of the rear travel case type chassis, a 2 nd side device of the rear travel case type chassis, a cavity for accommodating a double-upright-rod lifting handle device is reserved on the front travel case chassis and the rear travel case chassis, a cavity for accommodating a double-upright-rod lifting saddle is reserved on the front travel case chassis and the rear travel case chassis, a simulation travel case device, a bicycle turning and folding pedal device, a pedal middle shaft device, a pedal folding limiting device, a chain gear device, a fly gear device, an electric vehicle controller device, a battery storage device, a rear wheel hub motor device, a middle shaft and rear wheel suspension shaft seat device, a saddle upright-rod lifting locking device and a main shaft beam device, the device comprises a saddle upright rod lifting sleeve device, a front fork outer side upright rod lifting sleeve device, a front shaft device, a rear shaft device, a front fork outer side upright rod device, a saddle upright rod device, a notch saddle device, a chain device and a front wheel folding limiting groove device; the front wheel device is arranged on a front fork suspension device at the 2 nd axis abscissa position of the front travel box type chassis device; the rear wheel device is arranged on a rear wheel suspension device at the 4 th axis abscissa position of the rear suitcase type chassis device; the front wheel folding and accommodating cavity is dually reserved at the position of the abscissa of the 3 rd axis; the rear wheel folding and accommodating cavity is dually reserved at the position of the abscissa of the 1 st axis; the front suitcase type chassis device is connected with the rear suitcase type chassis device by a hinge device at the position of a hinge axis; the front suitcase type chassis device and the rear suitcase type chassis device respectively rotate in opposite directions by taking a hinge axis as an axis and combine with the simulation suitcase device, and the front wheel device and the rear wheel device are contained in the simulation suitcase device; the chain gear device is arranged on the pedal middle shaft device, and a chain of the chain gear device is connected with the flywheel gear device to drive the rear wheel device to realize the pedal riding function; the pedal middle shaft device is arranged on the rear traveling case type chassis device, and in the area between the edge of the folded front wheel device and the edge of the rear wheel device or the rear wheel fender device, the pedal middle shaft device and the front wheel device or the rear wheel fender device do not interfere with each other.

8. The traveling case type foldable electric bicycle as claimed in claim 2 or 4, wherein: wherein the suitcase type folding 2-wheel rear-box pedal bicycle comprises a front suitcase type chassis device, a rear suitcase type chassis device, a hinge device, a handle device, a hinge axis position wiring hole, a hinge axis, a front wheel device, a front telescopic frame locking device, a front suitcase type chassis roller device, a rear suitcase type chassis roller device, a front wheel fender device, a rear wheel fender device, a double-upright-rod lifting saddle device, a station locking device, a folding locking device, a rear frame device, a front fork suspension device, a telescopic front frame device, a rear wheel suspension device, a rear wheel folding storage cavity, a front wheel inter-axle braking device, a rear wheel inter-axle braking device, a front fork outer double-upright-rod lifting handle device, a front fork outer-upright-rod lifting locking device, a 1 st axis, a 2 nd axis, a 3 rd axis, a 4 th axis, a front side device of a front travel box type chassis, a rear side device of the front travel box type chassis, a 1 st side device of the front travel box type chassis, a 2 nd side device of the front travel box type chassis, a front side device of a rear travel box type chassis, a rear side device of the rear travel box type chassis, a 1 st side device of the rear travel box type chassis, a 2 nd side device of the rear travel box type chassis, a double-upright-rod lifting handle containing cavity reserved on the front travel box chassis and the rear travel box chassis, a double-upright-rod lifting saddle containing cavity reserved on the front travel box chassis and the rear travel box chassis, a simulation travel box device, a turning rotating and folding pedal device, a pedal middle shaft device, a pedal folding limiting device, a middle shaft driving bevel gear device, a driven bevel gear device, a transmission shaft driving bevel gear device, a bevel flywheel device, a middle shaft and rear wheel suspension shaft seat device, a saddle upright-rod lifting locking device and a main shaft beam device, the device comprises a saddle upright rod lifting sleeve device, a front fork outer side upright rod device, a saddle upright rod device, a notched saddle, a universal transmission shaft device and a front wheel folding limiting groove device; the front wheel device is arranged on a front fork suspension device at the 2 nd axis abscissa position of the front travel box type chassis device; the rear wheel device is arranged on a rear wheel suspension device at the 4 th axis abscissa position of the rear suitcase type chassis device; the front wheel folding and accommodating cavity is dually reserved at the position of the abscissa of the 3 rd axis; the rear wheel folding and accommodating cavity is dually reserved at the position of the abscissa of the 1 st axis; the middle shaft driving bevel gear device is connected with a driven bevel gear device, the driven bevel gear device is connected with a transmission shaft driving bevel gear device through a universal transmission shaft device, and the transmission shaft driving bevel gear device is connected with a bevel gear flywheel device to realize the riding function of the pedal-driven rear wheel device; the pedal middle shaft device is arranged on the rear travel suitcase type chassis device, and the pedal middle shaft device and the front wheel device or the rear wheel fender device do not interfere with each other in the area between the edge of the folded front wheel device and the edge of the rear wheel device or the area between the edge of the folded front wheel device and the rear wheel fender device.

9. The traveling case type foldable electric bicycle as claimed in claim 2 or 4, wherein: wherein the suitcase type folding 2-wheel rear box pedal crank middle shaft electric bicycle comprises a front suitcase type chassis device, a rear suitcase type chassis device, a hinge device, a handle device, a hinge axis position wiring hole, a hinge axis, a front wheel device, a front telescopic frame locking device, a front suitcase type chassis roller device, a rear suitcase type chassis roller device, a front wheel mudguard device, a rear wheel mudguard device, a double-upright-rod lifting saddle device, a station locking device, a folding locking device, a rear frame device, a front fork suspension device, a telescopic front frame device, a rear wheel suspension device, a rear wheel folding containing cavity, a front wheel inter-axle braking device, a rear wheel inter-axle braking device, a front fork outer double-upright-rod lifting handle device, a front fork outer-upright-rod lifting locking device, a 1 st axis and a 2 nd axis, the third axis, the fourth axis, the front side device of the front suitcase type chassis, the rear side device of the front suitcase type chassis, the 1 st side device of the front suitcase type chassis, the 2 nd side device of the front suitcase type chassis, the front side device of the rear suitcase type chassis, the rear side device of the rear suitcase type chassis, the 1 st side device of the rear suitcase type chassis, the 2 nd side device of the rear suitcase type chassis, the front and rear suitcase chassis reserve a cavity for accommodating a double upright rod lifting handle, the front and rear suitcase chassis reserve a cavity for accommodating a double upright rod lifting saddle, a simulation suitcase device, a bicycle crank rotating and folding pedal device, a pedal crank central shaft device, a pedal folding limiting device, a chain gear device, a flywheel gear device, an electric vehicle controller device, a battery storage device, a rear wheel hub motor device, a crank central shaft support device, a rear wheel suspension shaft seat device and a saddle lifting locking device, the device comprises a main shaft crossbeam device, a saddle vertical rod lifting sleeve device, a front fork outer side vertical rod device, a saddle vertical rod device, a chain device and a front wheel folding limiting groove device; the front wheel device is arranged on a front fork suspension device at the 2 nd axis abscissa position of the front travel box type chassis device; the rear wheel device is arranged on a rear wheel suspension device at the 4 th axis abscissa position of the rear suitcase type chassis device; the front wheel folding and accommodating cavity is dually reserved at the position of the abscissa of the 3 rd axis; the rear wheel folding and accommodating cavity is dually reserved at the position of the abscissa of the 1 st axis; the front suitcase type chassis device is connected with the rear suitcase type chassis device by a hinge device at the position of a hinge axis; the front suitcase type chassis device and the rear suitcase type chassis device respectively rotate in opposite directions by taking a hinge axis as an axis and combine with the simulation suitcase device, and the front wheel device and the rear wheel device are contained in the simulation suitcase device; the chain gear device is arranged on a pedal crank middle shaft device, and is connected with a flywheel gear device to drive a rear wheel device to realize a pedal riding function; the pedal crank central shaft device is arranged in the area of a front wheel folding containing cavity of the rear suitcase type chassis device, and the pedal folding limiting device is used for limiting in the process of folding the simulation suitcase device, so that the pedal crank central shaft device and the front wheel device are not interfered with each other, and the pedal crank central shaft device is rotated and the rear wheel fender device is not interfered with each other.

10. The traveling case type foldable electric bicycle as claimed in claim 2 or 4, wherein: wherein the suitcase type folding 2-wheel rear box pedal crank middle shaft bicycle comprises a front suitcase type chassis device, a rear suitcase type chassis device, a hinge device, a handle device, a hinge axis position wiring hole, a hinge axis, a front wheel device, a front telescopic frame locking device, a front suitcase type chassis roller device, a rear suitcase type chassis roller device, a front wheel mudguard device, a rear wheel mudguard device, a double-upright-rod lifting saddle device, a station locking device, a folding locking device, a rear frame device, a front fork suspension device, a telescopic front frame device, a rear wheel suspension device, a rear wheel folding storage cavity, a front wheel inter-axle braking device, a rear wheel inter-axle braking device, a front fork outer double-upright-rod lifting handle device, a front fork outer-upright-rod lifting locking device, a 1 st axis, a 2 nd axis and a 3 rd axis, a 4 th axis, a front side device of a front travel case type chassis, a rear side device of the front travel case type chassis, a 1 st side device of the front travel case type chassis, a 2 nd side device of the front travel case type chassis, a front side device of a rear travel case type chassis, a rear side device of the rear travel case type chassis, a 1 st side device of the rear travel case type chassis, a 2 nd side device of the rear travel case type chassis, a double-upright-rod lifting handle containing cavity reserved on the front travel case chassis and the rear travel case chassis, a double-upright-rod lifting saddle containing cavity reserved on the front travel case chassis and the rear travel case chassis, a simulation travel case device, a vehicle crutch rotating and folding pedal device, a pedal crank central shaft device, a pedal folding limiting device, a crank central shaft driving bevel gear device, a driven bevel gear device, a transmission shaft driving bevel gear device, a bevel gear flywheel device, a crank central shaft seat device, a rear wheel suspension shaft seat device and a saddle upright rod lifting locking device, the device comprises a main shaft crossbeam device, a saddle vertical rod lifting sleeve device, a front fork outer side vertical rod device, a saddle vertical rod device, a universal transmission shaft device and a front wheel folding limiting groove device; the front wheel device is arranged on a front fork suspension device at the 2 nd axis abscissa position of the front travel box type chassis device; the rear wheel device is arranged on a rear wheel suspension device at the 4 th axis abscissa position of the rear suitcase type chassis device; the front wheel folding and accommodating cavity is dually reserved at the position of the abscissa of the 3 rd axis; the rear wheel folding and accommodating cavity is dually reserved at the position of the abscissa of the 1 st axis; the crank middle shaft driving bevel gear device is connected with a driven bevel gear device, the driven bevel gear device is connected with a transmission shaft driving bevel gear device through a universal transmission shaft device, and the transmission shaft driving bevel gear device is connected with a bevel gear flywheel device to realize the riding function of the pedal-driven rear wheel device; the pedal crank central shaft device is arranged in the area of a front wheel folding containing cavity of the rear suitcase type chassis device, and the pedal folding limiting device is used for limiting in the process of folding the simulation suitcase device, so that the pedal crank central shaft device and the front wheel device are not interfered with each other, and the pedal crank central shaft device is rotated and the rear wheel fender device is not interfered with each other.

11. The traveling case type foldable electric bicycle as claimed in claim 2 or 4, wherein: wherein the suitcase type folding 2-wheel variable-wheelbase rear-box pedal electric bicycle comprises a front suitcase type chassis device, a rear suitcase type chassis device, a hinge device, a handle device, a hinge axis position wiring hole, a hinge axis, a front wheel device, an electric spring locking device, a front suitcase type chassis roller device, a rear suitcase type chassis roller device, a front wheel mudguard device, a rear wheel mudguard device, a double-upright-rod lifting saddle device, a station locking device, a folding locking device, a rear frame device, a front fork suspension device, a front frame device, a rear wheel suspension device, a rear wheel folding storage cavity vacated by the rear wheel folding variable-wheelbase, a front wheel inter-axle braking device, a rear wheel inter-axle braking device, a double-upright-rod lifting folding handle device, a front fork outer-side upright-rod locking lifting device, a 1 st axis and a 2 nd axis, a 3 rd axis, a 4 th axis, a front side device of a front suitcase type chassis, a rear side device of the front suitcase type chassis, a 1 st side device of the front suitcase type chassis, a 2 nd side device of the front suitcase type chassis, a front side device of a rear suitcase type chassis, a rear side device of the rear suitcase type chassis, a 1 st side device of the rear suitcase type chassis, a 2 nd side device of the rear suitcase type chassis, a cavity for accommodating a double-upright-rod lifting folding handle, a cavity for accommodating a double-upright-rod lifting saddle, a simulation suitcase device, a bicycle crank rotating and folding pedal device, a pedal middle shaft device, a pedal folding limiting device, a driving gear device, a driven gear device, a chain gear device, a folding arm shaft seat device, a flywheel gear device, an electric vehicle controller device, a battery storage device and a rear wheel hub motor device, the folding mechanism comprises a foot supporting device, a folding arm device, a saddle upright rod lifting locking device, a main shaft cross beam device, a saddle upright rod lifting sleeve device, a front fork outer side upright rod lifting sleeve device, a front shaft device, a rear wheel variable-wheelbase folding containing cavity, a front fork outer side upright rod device, a saddle upright rod device, a chain device, an electric spring locking switch device and a front wheel folding limiting groove device; the 1 st end and the 2 nd end of a front shaft device of the front wheel device are respectively arranged on a front fork suspension device at the 1 st axis abscissa position; the 1 st end and the 2 nd end of a rear shaft device of the rear wheel device are respectively arranged on a rear wheel suspension device at the 4 th axis abscissa position; the rear wheel folding variable-wheelbase containing cavity is dually reserved at the position of the abscissa of the 3 rd axis; the rear wheel folding and accommodating cavity is dually reserved at the position of the abscissa of the 2 nd axis; the folding and containing cavity of the front wheel, which is vacated by the folding and variable-wheel-pitch rear wheel, is dually reserved at the position of the abscissa of the 4 th axis; the 1 st end hinge device of the folding arm device is connected with the folding arm shaft seat device; the 2 nd end of the folding arm device is connected with a rear wheel suspension device through a movable hinge device; the movable hinge device is 4 electric spring locking devices, and in the process of changing the wheel base, 1 electric spring locking switch device is used for controlling 4 electric spring locking devices to be synchronously opened to finish changing the wheel base, and then 1 electric spring locking switch device is used for closing 4 electric spring locking devices; the rear wheel fender device and the front wheel folding limiting groove device are fixed on the No. 1 longitudinal beam and the No. 2 longitudinal beam of the rear frame device and do not participate in the variable-wheel-base rotation of the rear wheels; the front suitcase type chassis device and the rear suitcase type chassis device respectively rotate in opposite directions by taking a hinge axis as an axis and combine with the simulation suitcase device, and the front wheel device and the rear wheel device are contained in the simulation suitcase device; the pedal middle shaft device is arranged on the rear travelling case type chassis device, the middle shaft driving gear device is connected with the driven gear device, the chain gear device and the 1 st end of the folding arm device are coaxially arranged on the folding arm shaft seat device, the 1 st end of the folding arm device is hinged with the folding arm shaft seat device, the 2 nd end of the folding arm device is hinged with the rear wheel suspension device, the driven gear device and the chain gear device synchronously rotate, and the chain gear device is connected with the flying gear device to drive the rear wheel device to realize the pedal riding function; the pedal middle shaft device is arranged on the rear traveling case type chassis device, and in the area between the edge of the folded front wheel device and the edge of the rear wheel device or the rear wheel fender device, the pedal middle shaft device and the front wheel device or the rear wheel fender device do not interfere with each other.

12. The traveling case type foldable electric bicycle as claimed in claim 2 or 4, wherein: wherein the suitcase type folding 2-wheel variable-wheelbase rear-box pedal bicycle comprises a front suitcase type chassis device, a rear suitcase type chassis device, a hinge device, a handle device, a hinge axis position wiring hole, a hinge axis, a front wheel device, a stay wire spring locking device, a front suitcase type chassis roller device, a rear suitcase type chassis roller device, a front wheel fender device, a rear wheel fender device, a double-upright-rod lifting saddle device, a station locking device, a folding locking device, a rear frame device, a front fork suspension device, a front frame device, a rear wheel suspension device, a rear wheel folding storage cavity vacated by the rear wheel folding variable-wheelbase, a front wheel inter-axle braking device, a rear wheel inter-axle braking device, a double-upright-rod lifting folding handle device outside a front fork, a front fork outer-upright-rod lifting device and a 1 st axis, a 2 nd axis, a 3 rd axis, a 4 th axis, a front side device of a front travel box type chassis, a rear side device of the front travel box type chassis, a 1 st side device of the front travel box type chassis, a 2 nd side device of the front travel box type chassis, a front side device of a rear travel box type chassis, a rear side device of the rear travel box type chassis, a 1 st side device of the rear travel box type chassis, a 2 nd side device of the rear travel box type chassis, a double-upright-rod lifting folding handle containing cavity reserved in the front travel box chassis and the rear travel box chassis, a double-upright-rod lifting saddle containing cavity reserved in the front travel box chassis and the rear travel box chassis, a simulation travel box device, a bicycle crank rotating and folding pedal device, a pedal middle shaft device, a pedal folding limiting device, a middle shaft driving bevel gear device, an intermediate bevel gear device, a driven bevel gear device, a transmission shaft driving bevel gear device, a folding arm shaft seat device, a bevel gear flywheel device and a folding arm device, the folding and folding device comprises a foot supporting device, a saddle vertical rod lifting locking device, a main shaft crossbeam device, a saddle vertical rod lifting sleeve device, a front fork outer side vertical rod lifting sleeve device, a rear wheel variable-wheelbase folding and accommodating cavity, a front fork outer side vertical rod device, a saddle vertical rod device, a transmission shaft device, a stay wire spring locking switch device and a front wheel folding limiting groove device; the 1 st end and the 2 nd end of a front shaft device of the front wheel device are respectively arranged on a front fork suspension device at the 1 st axis abscissa position; the 1 st end and the 2 nd end of a rear shaft device of the rear wheel device are respectively arranged on a rear wheel suspension device at the 4 th axis abscissa position; the rear wheel folding variable-wheelbase containing cavity is dually reserved at the position of the abscissa of the 3 rd axis; the rear wheel folding and accommodating cavity is dually reserved at the position of the abscissa of the 2 nd axis; the folding and containing cavity of the front wheel, which is vacated by the folding and variable-wheel-pitch rear wheel, is dually reserved at the position of the abscissa of the 4 th axis; the pedal middle shaft device is arranged on the rear travel box type chassis device, the middle shaft driving bevel gear device is connected with the intermediate bevel gear device, the intermediate bevel gear device and the 1 st end of the folding arm device are coaxially arranged on the folding arm shaft seat device in a hinged connection mode, the 2 nd end of the folding arm device is movably hinged with the rear wheel suspension device, the intermediate bevel gear device is connected with the driven bevel gear device, the driven bevel gear device is connected with the transmission shaft driving bevel gear device through the transmission shaft device, and the transmission shaft driving bevel gear device is connected with the bevel gear flywheel device to drive the rear wheel device to realize the pedal riding function; the transmission shaft device is arranged on a transmission shaft seat device of the folding arm device, and the transmission shaft device rotates and folds along with the folding arm device in the folding process; the pedal middle shaft device is arranged on the rear suitcase type chassis device, and in the area clamped by the edge of the folded front wheel device and the edge of the rear wheel device or the rear wheel fender device, the pedal middle shaft device does not interfere with the front wheel device or the rear wheel fender device; each wheel device is provided with at least one set of suspension device or is damped by the tire device without the suspension device.