CN206087042U - Electric balancing bike - Google Patents

Abstract

The utility model discloses an electric balancing bike, including automobile body, wheel, the driving motor who is used for drive wheels, the power that is used for providing power, circuit board and control unit, control unit includes control lever and axis of rotation, control lever perpendicular to automobile body sets up, the control lever includes the armrest part on upper portion, the control part of lower part and the connecting rod of connection armrest part and control part, the control part is close to the automobile body and is equipped with the connecting hole, the axis of rotation include with connecting hole fixed connection's first section. Because control unit is the components of a whole that can function independently, including control lever and axis of rotation, in the installation, the axis of rotation part cooperates the preferred installation of other part, and the control lever is in the installation of balance car later stage, has reduced the volume of balance car installation in -process in earlier stage, and is convenient to the operation of balance car main part, and the control part is close to the automobile body and is equipped with the connecting hole, the axis of rotation include with connecting hole fixed connection's first section, control lever and axis of rotation cooperation are simple, simple to operate.

Description

A kind of electrodynamic balance car

Technical field

This utility model is related to balance car field, in particular, is related to a kind of electrodynamic balance car.

Background technology

Electrodynamic balance car, is called body-sensing car, thinking car, and its operation principles is mainly built upon one kind and is referred to as that " dynamic is steady In ultimate principle calmly ", using the gyroscope and acceleration transducer of vehicle body, the change of vehicle body attitude, and profit are detected With servo-control system, accurately motor is adjusted correspondingly, to keep the balance of system.

An action bars is set on present electrodynamic balance car car body, user station is right on the foot platform of electrodynamic balance car Action bars is operated, and realizes the functions such as steering.But present action bars is inconvenient to install.

Utility model content

Technical problem to be solved in the utility model is to provide a kind of convenient electrodynamic balance car installed.

The purpose of this utility model is achieved through the following technical solutions：A kind of electrodynamic balance car, including car body, car Wheel, the motor for driving moment, the power supply for providing power, circuit board and control unit, the power supply and circuit Plate is arranged in the car body, and the control unit includes control-rod and rotary shaft, and the control-rod is arranged perpendicular to car body, institute Stating control-rod includes the connecting rod of the armrest part on top, the control unit of bottom and connection armrest part and control unit, the control unit Connecting hole is provided near car body, the rotary shaft includes the first paragraph being fixedly connected with the connecting hole.

Further, the control unit includes the second connecting portion being fixedly connected with the connecting rod, and the connecting hole is arranged on In a section of car body, the connecting hole is square connecting hole to the second connecting portion, and the rotary shaft first paragraph is side Shape, the rotary shaft first paragraph are embedded in the square connecting hole.

The control unit of control-rod is provided with square attaching apertures, and square first paragraph and its of rotary shaft coordinate, as long as control-rod rotation Turn just rotary shaft can be driven at once to rotate, very convenient quick, design is succinct, and sensitivity is high, it is not necessary to which other are fixed such as screw Etc. mode.

Further, the first paragraph end is provided with embedded hole, and first paragraph side is provided with the first connection through hole and second and connects Hole is connected, the first connection through hole is turned on embedded hole.

From the embedded lid of the first connection through hole, lid snaps in embedded hole, so as to control-rod and rotary shaft are fixed, can be with Water proof and dust proof, lid snap in the part correspondence connection through hole of embedded hole be provided with two it is raised, can play and strengthen fixed effect. The second connection through hole in two connection through holes away from end is played between balance rotary shaft first paragraph and control-rod connecting portion Space and the air pressure of space outerpace, easy disassembly.

Further, the rotary shaft is provided with the second segment being fixedly connected with first paragraph, and the second segment is cylinder, institute State second segment and be externally provided with clutch shaft bearing, outside the clutch shaft bearing, be provided with first bearing seat, the first bearing seat is fixed on car Internal bottom.

Rotate beneficial to rotary shaft, stable rotation axle.

Further, changeover portion is provided between the first paragraph and second segment of the rotary shaft.

Changeover portion can allow has gap between first paragraph and second segment, do not interfere with rotation.

Further, the rotary shaft is provided with the 3rd section of cylinder, and the 3rd section of outside is provided with restriction rotary shaft and rotates The position limiting structure of angle.

Rotary shaft rotational angle is limited, too big angle in steering procedure is prevented and is caused danger, especially in burst In the case of excessive rotational angle cause danger, such as have suddenly child rush out and wide-angle break-in and operate out of control.

Further, the rotary shaft is provided with the 4th section of cylinder, and described 4th section is externally provided with second bearing, and described second Second bearing seat is provided with outside bearing, the second bearing seat is fixed on the bottom in car body.

Rotate beneficial to rotary shaft, stable rotation axle, especially coordinate rear stability higher with clutch shaft bearing.

Further, rotary shaft also includes the 5th section of cylinder, and the 5th section of end is provided with assembling and rotates identification dress The pilot hole put.

The pilot hole of the 5th section of end is accommodated and rotates identifying device, convenient to install, convenient identification rotational angle, convenient to control System.

Further, the 5th section of side is additionally provided with the fixing hole with pilot hole conducting.

Pilot hole is stretched in the potentiometer rotating shaft for rotating identifying device, arranges screw from side fixed potential device from fixing hole Rotating shaft.

Further, the rotary shaft be provided be fixedly connected sequentially second segment, the 3rd section, the 4th section and the 5th section, institute State second segment to be fixedly connected with first paragraph, between the first paragraph and second segment of the rotary shaft, be provided with changeover portion, the second segment Clutch shaft bearing is externally provided with, first bearing seat outside the clutch shaft bearing, is provided with, the first bearing seat is fixed on the bottom in car body Portion, the 3rd section of outside are provided with the position limiting structure for limiting rotary shaft rotational angle, and described 4th section is externally provided with second bearing, institute State, the second bearing seat is fixed on the bottom in car body, the 5th section of end The pilot hole that assembling rotates identifying device is provided with, the 5th section of side is additionally provided with the fixing hole with pilot hole conducting, the second segment With diameter greater than first paragraph diameter, the changeover portion is less than second segment diameter, the 3rd section of diameter with diameter greater than first paragraph diameter More than second segment and the 4th section of diameter, the 5th section of diameter is less than the 4th section of diameter.

Rotary shaft is divided into five sections, can arrange corresponding adapting device in different sections, make rotary shaft slow-roll stabilization, Bu Hui Offset in rotation process, more accurately, limiting rotating angle improves safety for rotational angle identification.

The control unit of one needs preferential installation, and then the control-rod of the control unit of one affects follow-up installation, Make the too big inconvenient subsequent installation of balance car early stage volume, this utility model is split due to control unit, including control-rod And rotary shaft, in installation process, rotating shaft portion and coordinate miscellaneous part preferably to install, control-rod was installed in the balance car later stage, The volume during balance car installs early stage is reduced, convenient to balance car body operation, control unit is provided with connection near car body Hole, rotary shaft include that the first paragraph being fixedly connected with the connecting hole, control-rod and rotary shaft coordinate simple, easy for installation.

Description of the drawings

Fig. 1 is a kind of electrodynamic balance car schematic diagram of this utility model embodiment；

Fig. 2 is a kind of electrodynamic balance car decomposing schematic representation of this utility model embodiment；

Fig. 3 is a kind of electrodynamic balance car control-rod schematic diagram of this utility model embodiment；

Fig. 4 is a kind of electrodynamic balance car rotary shaft and its fit structure schematic diagram of this utility model embodiment；

Fig. 5 is a kind of electrodynamic balance car rotary shaft schematic diagram of this utility model embodiment；

Fig. 6 is that a kind of electrodynamic balance car of this utility model embodiment shows that limiting plate is intended to；

Fig. 7 is a kind of electrodynamic balance car control base plate schematic diagram of this utility model embodiment.

Wherein：1st, electrodynamic balance car, 2, car body, 21, upper lid, 22, bottom, 23, control base plate, 24, thickening plate, 25, the Two-screw hole, 26, gripper shoe, 27, support through holes, 3, wheel, 4, motor, 5, power supply, 6, control-rod, 61, armrest part, 62nd, control unit, 63, second connecting portion, 64, square attaching apertures, 65, connecting rod, 66, first connecting portion, 67, long straight portion, 68, curved Pars convoluta, 7, rotary shaft, 71, first paragraph, 711, embedded hole, the 712, first connection through hole, the 713, second connection through hole, 72, second Section, 721, clutch shaft bearing, 722, first bearing seat, the 73, the 3rd section, 731, limiting plate, 732, breach, 733, grip block, 734, Spring, the 735, first screw hole, 736, prominent limiting unit, the 74, the 4th section, 741, second bearing, 742, second bearing seat, 75, 5th section, 751, pilot hole, 752, fixing hole, 76, changeover portion, 8, potentiometer, 81, potentiometer rotating shaft.

Specific embodiment

The utility model is described in further detail with preferred embodiment below in conjunction with the accompanying drawings.

As shown in Figures 1 to 7, a kind of electrodynamic balance car 1, including car body 2, wheel 3, for the driving electricity of driving moment 3 Machine 4, the power supply 5, circuit board for providing power and control-rod 6, the power supply 5, circuit board are arranged in the car body 2, institute Stating wheel 3 includes two wheels 3, and two wheels 3 are separately positioned on 2 both sides of car body, and the motor 4 includes that two drive electricity Machine 4, two motors 4 are separately positioned on both sides in car body 2, and the drive shaft of motor 4 is snapped in the wheel shaft of wheel 3.

Power supply 5 includes one or more battery, if multiple batteries are evenly distributed in car body 2, such as two electric Pond is separately positioned on the left and right sides or upper and lower both sides in car body 2, and for example, three batteries are triangular in shape to be arranged in car body 2, example Such as it is separately positioned on for four batteries that upper left in car body 2, upper right, lower-left, bottom right four are local, battery is using electricity such as lithium batteries Pond, battery are all heavier, and multiple batteries uniformly respectively facilitate 2 balanced weight of car body, and steadily of centre of gravity is convenient to control.

Control-rod 6 is arranged on front side of car body 2, with the direction of motion in a direction.Control-rod 6 is perpendicular to car body 2, control-rod The connecting rod 65 of the control unit 62 and connection armrest part 61 and control unit 62 of 6 armrest parts 61, bottom for including top.

Armrest part 61 is controlled for user's both hands, and including the first connecting portion 66 being fixedly connected with connecting rod 65, first connects Socket part 66 is respectively provided on two sides with the first handle and second handle held for user, is designed with first handle and second handle Anti-slip veins.First connecting portion 66 is arc, is bent outwardly, and first handle and second handle are arranged on the first connecting portion 66 of arc Where being bent outwardly, i.e., first handle and second handle than connecting rod 65 more outward, facilitate user's taking.First handle and Two handles are cylinder, and first connecting portion 66 is strip, the connection first handle of first connecting portion 66 and second handle Duan Weiyuan Cylindricality, strengthens bonding strength.

Connecting rod 65 includes long straight portion 67 and bending section 68, the connection armrest part 61 of the long straight portion 67, the bending section 68 Connection control unit 62, the bending section 68 are first bent again straight down on front side of car body 2.Facilitate user's control, control-rod 6 is helped Hand 61 keeps the distance of a convenient control taking with user.Connecting rod 65 can select two bars arranged side by side, strengthen intensity.

Control unit 62 includes the second connecting portion 63 being fixedly connected with connecting rod 65, and second connecting portion 63 is from before car body 2 Side passes through.Second connecting portion 63 is cylinder, naturally it is also possible to for other shapes, such as square etc..63 interior part of second connecting portion For two sections, square attaching apertures 64 are provided with a section of car body 2, another section is hollow section.

Square attaching apertures 64 are embedded in rotary shaft 7, and rotary shaft 7 includes the square attaching apertures 64 of embedded second connecting portion 63 Square first paragraph 71, square 71 end of first paragraph are provided with embedded hole 711, and 71 side of square first paragraph is provided with the first connection and leads to Hole 712 and the second connection through hole 713, the first connection through hole 712 in two connection through holes near end are led with embedded hole 711 It is logical.Embedded hole 711 is snapped in lid, the end of lid covers the hollow section of connecting portion, and embedded hole 711 plays the work(of fixed lid Can, lid can play the effect of waterproofing protection rotary shaft 7.Lid snaps in the part correspondence connection through hole of embedded hole 711 and is provided with two Individual projection, can play and strengthen fixed effect.The second connection through hole 713 in two connection through holes away from end plays balance The air pressure in space and space outerpace between 7 first paragraph 71 of rotary shaft and 6 connecting portion of control-rod, easy disassembly.

Rotary shaft 7 also includes the second segment 72 of cylinder, and second segment 72 is externally provided with clutch shaft bearing 721, and clutch shaft bearing 721 sets Put in first bearing seat 722, first bearing seat 722 is fixed on the bottom in car body 2.

Rotary shaft 7 also includes the 3rd section 73 of the diameter cylinder bigger than second segment 72, is provided with limit outside the 3rd section 73 Bit architecture, limits the 3rd section 73 i.e. 7 anglec of rotation of whole rotary shaft.7 rotational angle of rotary shaft is limited, is prevented in steering procedure Too big angle and cause danger, especially excessive rotational angle under emergency case causes danger, such as has child to rush suddenly Out and wide-angle break-in and operate out of control.

3rd section of 73 bottoms of rotary shaft 7 are provided with breach 732, and the 3rd section 73 of cylindrical bottom portion removes part formation should Breach 732, is flat at the top of breach 732, and position limiting structure includes being arranged on the limiting plate 731 below the 3rd section 73, limiting plate 731 Centre is snapped in breach 732, and the thickness of preferred limiting plate 731 is less than the height of breach 732, i.e. the bottom surface of limiting plate 731 is less than 3rd section of 73 bottom surfaces.731 two ends of limiting plate exceed the 3rd section 73, are vertically arranged two pieces of grip blocks 733 on limiting plate 731, two pieces Grip block 733 is from the 3rd section of 73 sandwich rotary shaft 7 of rotary shaft 7.731 both sides of limiting plate are matched with breach 732, i.e. limiting plate 731 width are same or like with 732 width of breach, 731 width of limiting plate slightly larger than 732 width of breach facilitate limiting plate 731 with Rotary shaft 7 is fixedly connected, and 731 width of limiting plate is slightly less than 732 width of breach and facilitates limiting plate 731 to snap in breach 732.Limiting plate 731 are provided with two springs 734 with 2 bottom of car body, and two springs 734 are separately positioned on 7 both sides of rotary shaft.Rotary shaft 7 is rotated, and is turned The 3rd section of 73 breach 732 of moving axis 7 drives limiting plate 731 to rotate, and limiting plate 731 rotates pressuring spring 734, and the compression of spring 734 is produced Raw spring energy effectively limits 7 rotational angle of rotary shaft, and provides resilience force, makes rotary shaft 7 reset, and grip block 733 can be prevented Limiting plate 731 is shifted, and provides pressure to limiting plate 731, the pressure that spring 734 can be given bigger, produces bigger reset force.

It is also possible that control through hole is provided with the middle of the 3rd section 73 of rotary shaft 7, position limiting structure includes the limit through control through hole Position plate 731,731 two ends of limiting plate exceed the 3rd section 73, and 731 both sides of limiting plate are matched with control through hole, i.e. 731 width of limiting plate Same or like with control entire widths, 731 width of limiting plate facilitates limiting plate 731 and rotary shaft slightly larger than control entire widths 7 are fixedly connected, and 731 width of limiting plate is slightly less than control entire widths and facilitates limiting plate 731 to snap in breach 732.Position limiting structure is also Including two springs 734 being arranged between 2 bottom of limiting plate 731 and car body, two springs 734 are separately positioned on rotary shaft 7 Both sides.Rotary shaft 7 is rotated, and the 3rd section of 73 control through hole of rotary shaft 7 drives limiting plate 731 to rotate, and limiting plate 731 rotates compressing bullet Spring 734, the compression of spring 734 produce spring energy and effectively limit 7 rotational angle of rotary shaft, and provide resilience force, make rotary shaft 7 multiple Position.

The fixed structure of fixed limiting plate 731 and spring 734 can be added between above-mentioned limiting plate 731 and spring 734, Fixed structure includes that limiting plate 731 is provided with the first screw hole 735 and screw, and screw one end is fixed with the first screw hole 735, separately Stretch in spring 734 one end.

Above-mentioned 731 bottom surface of limiting plate is provided with 734 limiting unit of spring, and 734 limiting unit of spring can be 731 bottom surface of limiting plate The recess of setting, 734 one end of spring are snapped in recess, and recess can be a circular recess, are blocked 734 end of spring, also may be used To be an annular notch, the annular end of 734 end of spring snaps in annular notch, can preferably block 734 end of spring. While circular recess or annular notch can be whole circular or annular, or part circular or an annulars, spring 734 has Expose limiting plate 731 in part.The inwardly projecting part of pocket ends forms interior teat and blocks 734 end of spring, strengthens fixed effect Really.

734 limiting unit of spring can also be the prominent limiting unit 736 that limiting plate 731 is arranged, and prominent limiting unit 736 is one Circular prominent limiting unit 736 blocks 734 end of spring, blocks 734 end of spring, and prominent limiting unit 736 can also be a ring Shape projects limiting unit 736 and blocks 734 end of spring, and the annular end of 734 end of spring snaps in annular notch, preferably can block Firmly 734 end of spring.Simultaneously circular prominent limiting unit 736 or the prominent limiting unit 736 of annular can be a whole circular or annulars, Can also be part circular or annular, spring 734 has part to expose limiting plate 731.Prominent 736 end of limiting unit inwardly projecting one Part forms interior teat and blocks 734 end of spring, strengthens fixed effect.

2 bottom of car body also is provided with similar above-mentioned 734 limiting unit of spring.

Rotary shaft 7 also includes the 4th section 74 of cylinder, and the 4th section 74 is externally provided with second bearing 741, and second bearing 741 sets Put in second bearing seat 742, second bearing seat 742 is fixed on the bottom in car body 2.It is preferred that the 4th section of 74 diameter and second segment 72 diameters are the same, and clutch shaft bearing 721 adopts the same bearing, first bearing seat 722 and second bearing seat with second bearing 741 742 adopt the same bearing block.

Rotary shaft 7 also includes the 5th section 75 of cylinder, and the 5th section of 75 diameters are less than the 4th section 74.It is provided with for 5th section 75 and turns Dynamic identifying device potentiometer 8, for recognizing rotational angle.5th section of 75 ends are provided with pilot hole 751, the rotating shaft card of potentiometer 8 Enter pilot hole 751, pilot hole 751 is fixedly connected with potentiometer rotating shaft 81, pilot hole 751 can be arranged and potentiometer rotating shaft 81 Form fit, such as potentiometer rotating shaft 81 are gear-like, and pilot hole 751 is set to matched gear-like, such as potentiometer rotating shaft 81 are circle, and pilot hole 751 is also configured as circle but aperture is slightly less than potentiometer rotating shaft 81 and forms interference fit.Can be with the 5th 75 sides of section are additionally provided with the fixing hole 752 with the conducting of pilot hole 751, and pilot hole 751 is stretched in potentiometer rotating shaft 81, from fixing hole Screws are set in 752 from side fixed potential device rotating shaft 81.

Can also arrange for 5th section 75 and rotate the contactless rotation sensor of identifying device.Rotation sensor belongs to non-and connects Touch angular transducer.Built-in two sensors are used for correction mutually, mainly play a part of correction mutually.When staff goes to turn Start barre when, steering angle sensor will be signal transmission to the master control borad in circuit board, so as to controlling whole The travel direction of car.Rotation sensor is arranged on a fritter circuit board, and the fritter circuit board is arranged on the 5th section of rotary shaft 7 On 75 end, it is also possible to be arranged in the 5th section 75.The service life of non-contact angle sensor is very long, close to infinite Greatly, it does not have the abrasion of contact.

Car body 2 includes lid 21, bottom 22, and the correspondence spring 734 of bottom 22 arranges 734 limiting unit of spring.Can be with car body 2 Interior to arrange control base plate 23, control bottom is arranged on rotary shaft 7, the lower section of spring 734, is arranged on the top of 2 bottom 22 of car body, Control base plate 23 is fixed on 2 bottom 22 of car body, and the control correspondence spring 734 of base plate 23 arranges 734 limiting unit of spring.Bottom 22 or On control base plate 23, correspondence 734 limiting unit of spring is provided with thickening plate 24, is provided with recess, or thickening plate 24 and sets prominent in thickening plate 24 Go out limiting unit 736, improve 734 effect of fixed spring.Spring 734 can be corresponded on bottom 22 or control base plate 23 and be provided with fixed bullet Second bolt hole of spring 734, screw one end are fixed the other end with the second screw hole 25 and are snapped in spring 734, prevent spring 734 from moving It is dynamic.

Control base plate 23 mode such as is also bolted and is fixedly connected with first bearing seat 722 and second bearing seat 742. Control base plate 23 is provided with gripper shoe 26 away from 6 one end of control-rod, the 26 vertical control base plate 23 of gripper shoe.Gripper shoe 26 is provided with Support through holes 27.Support through holes 27 may also be used for supporting potentiometer 8.Gripper shoe 26 is also used for supporting equipped with contactless angle The fritter circuit board of sensor.The stability in the large of rotating mechanism is improved, the stability of rotary shaft 7 is improved, the essence for rotating is improved Degree.

The first paragraph 71 of rotary shaft 7, second segment 72, the 3rd section 73, the 4th section 74 and the 5th section 75 be sequentially connected, same On bar axial line, can be integrally formed and can also splice fixed forming after separate machined.Between first paragraph 71 and second segment 72 also Changeover portion 76 is provided with, between 72 diameter of 71 diameter of first paragraph and second segment, first paragraph 71 snaps in control to 76 diameter of changeover portion In bar 6, second segment 72 is snapped in clutch shaft bearing 721, and changeover portion 76 is hanging.Changeover portion 76 can allow first paragraph 71 and second segment 72 Between have between gap, i.e. control-rod 6 and clutch shaft bearing 721 and have gap, do not interfere with rotation.

Rotary shaft 7 initially passes through first bearing seat 722 and second bearing seat 742, then by clutch shaft bearing 721 and second bearing 741 snap in from 7 two ends of rotary shaft, second segment 72 and the 4th section of 74 cooperation with rotary shaft 7, the 3rd section of 73 diameters of rotary shaft 7 Bigger than the diameter of second segment 72 and the 3rd section 73, clutch shaft bearing 721 and second bearing 741 are from the 3rd section of 73 both sides of rotary shaft 7 The 3rd section of 73 axially and radially move is limited, while also just limiting axially and radially moving for rotary shaft 7, allows rotary shaft 7 to exist Clutch shaft bearing 721 and second bearing 741 limit lower rotation and will not offset.

Above-mentioned 7 second segment 72 of rotary shaft, the 3rd section 73, the 4th section 74, and the clutch shaft bearing 721, first coordinated with which Bearing block 722, spring 734, limiting plate 731, second bearing 741 and fourth bearing seat can play fixed support rotating axle well 7 effect, coordinates control base plate 23 preferably fix support rotating axle 7, is played well in 7 rotation process of rotary shaft Stablizing effect, obtains good rotation precision.The second bearing for the 4th section 74 of rotary shaft 7 can certainly be omitted, coordinating with which 741 and second bearing seat 742, can also play the effect of good fixed support rotating axle 7.

Above content is with reference to specific preferred implementation further detailed description of the utility model, it is impossible to Identification is of the present utility model to be embodied as being confined to these explanations.For the ordinary skill of this utility model art For personnel, without departing from the concept of the premise utility, some simple deduction or replace can also be made, should be all regarded To belong to protection domain of the present utility model.

Claims (9)

1. a kind of electrodynamic balance car, it is characterised in that including car body, wheel, the motor for driving moment, for providing The power supply of power, circuit board and control unit, the power supply and circuit board are arranged in the car body, and the control unit includes Control-rod and rotary shaft, the control-rod are arranged perpendicular to car body, and the control-rod includes the control of the armrest part on top, bottom Portion and the connecting rod of connection armrest part and control unit, the control unit are provided with connecting hole near car body, the rotary shaft include with The first paragraph that the connecting hole is fixedly connected, the control unit include the second connecting portion being fixedly connected with the connecting rod, the company Connect hole and be arranged on the second connecting portion in a section of car body, the connecting hole is square connecting hole, the rotary shaft First paragraph is square, and the rotary shaft first paragraph is embedded in the square connecting hole.

2. a kind of electrodynamic balance car according to claim 1, it is characterised in that the first paragraph end is provided with embedded hole, First paragraph side is provided with the first connection through hole and the second connection through hole, and the first connection through hole is turned on embedded hole.

3. a kind of electrodynamic balance car according to claim 1, it is characterised in that the rotary shaft is provided with is fixed with first paragraph The second segment of connection, the second segment are cylinder, and the second segment is externally provided with clutch shaft bearing, is provided with outside the clutch shaft bearing First bearing seat, the first bearing seat are fixed on the bottom in car body.

4. a kind of electrodynamic balance car according to claim 3, it is characterised in that the first paragraph and second segment of the rotary shaft Between be provided with changeover portion.

5. according to a kind of arbitrary described electrodynamic balance car of claim 1-3, it is characterised in that the rotary shaft is provided with cylinder 3rd section, the 3rd section of outside is provided with the position limiting structure for limiting rotary shaft rotational angle.

6. a kind of electrodynamic balance car according to claim 5, it is characterised in that the rotary shaft is provided with cylinder the 4th Section, described 4th section is externally provided with second bearing, and second bearing seat is provided with outside the second bearing, and the second bearing seat is fixed Bottom in car body.

7. a kind of electrodynamic balance car according to claim 5, it is characterised in that rotary shaft also includes the 5th of cylinder Section, the 5th section of end are provided with the pilot hole that assembling rotates identifying device.

8. a kind of electrodynamic balance car according to claim 7, it is characterised in that the 5th section of side is additionally provided with and assembling The fixing hole of hole conducting.

9. a kind of electrodynamic balance car according to claim 1, it is characterised in that the rotary shaft is provided with and is fixedly connected sequentially Second segment, the 3rd section, the 4th section and the 5th section, the second segment is fixedly connected with first paragraph, the first paragraph of the rotary shaft Changeover portion is provided with and second segment between, and the second segment is externally provided with clutch shaft bearing, clutch shaft bearing is provided with outside the clutch shaft bearing Seat, the first bearing seat are fixed on the bottom in car body, and the 3rd section of outside is provided with the limit for limiting rotary shaft rotational angle Bit architecture, described 4th section is externally provided with second bearing, and second bearing seat, the second bearing seat are provided with outside the second bearing The bottom being fixed in car body, the 5th section of end are provided with the pilot hole that assembling rotates identifying device, and the 5th section of side also sets There is the fixing hole with pilot hole conducting, with diameter greater than first paragraph diameter, the changeover portion is with diameter greater than first paragraph for the second segment Diameter is less than second segment diameter, described 3rd section with diameter greater than second segment and the 4th section of diameter, the 5th section of diameter is less than the Four sections of diameters.