CN213534963U

CN213534963U - Balance car slewing mechanism and electrodynamic balance car

Info

Publication number: CN213534963U
Application number: CN202021866515.7U
Authority: CN
Inventors: 臧传美
Original assignee: Zhejiang Aerlang Technology Co Ltd
Current assignee: Zhejiang Aerlang Technology Co Ltd
Priority date: 2020-08-31
Filing date: 2020-08-31
Publication date: 2021-06-25
Anticipated expiration: 2030-08-31

Abstract

The utility model discloses a balance car slewing mechanism and an electrodynamic balance car, the balance car slewing mechanism comprises a first slewing part and a second slewing part, a slewing shaft is arranged between the first slewing part and the second slewing part, one end of the slewing shaft is rotationally arranged in the first slewing part, and the other end is fixedly arranged in the second slewing part; the rotating shaft is internally provided with a limiting part which can be twisted and deformed within a range angle in a penetrating manner, and two ends of the limiting part are respectively fixed with the first rotating part and the second rotating part. The advantages are that: because the limiting part can be deformed, the first rotating part and the second rotating part have mutually relative rotating spaces, and the limiting part can only rotate within a certain angle range, so that the rotating angles of the first rotating part and the second rotating part are limited, and the safety is higher.

Description

Balance car slewing mechanism and electrodynamic balance car

Technical Field

The utility model relates to a balance car technical field especially relates to a balance car slewing mechanism and electrodynamic balance car.

Background

The operation principle of the electric balance vehicle is mainly established on a basic principle called dynamic stability, a gyroscope and an acceleration sensor in the vehicle body are used for detecting the change of the vehicle body posture, and a servo control system is used for driving a motor to perform corresponding adjustment so as to keep the balance of the system. The electric balancing vehicle is a novel green and environment-friendly product used as a walking tool and leisure and entertainment by modern people, and generally, the electric balancing vehicle with two wheels mainly comprises two hub motors with wheel shafts, a pedal positioned between the two hub motors and the like.

The swing car is a kind of balance car, and the swing car needs to rotate the automobile body of the left and right sides when steering control, needs a rotating device between two automobile bodies, accomplishes the relative rotation of two automobile bodies, and what the swing car adopted at present is that the bearing was established to the rotation axis both sides cover respectively for the automobile body rotates relatively about, and the adoption sets up the mode restriction pivoted angle of breach in the pivot. Such mounting structure is complicated, and rotatory spacing in-process produces the collision, damages stop gear and pivot easily, causes the dangerous condition to send the collision noise, influence the use of swing car and experience.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, one of the purposes of the utility model is to provide a balance car rotating mechanism, which has simple structure, small noise and is not easy to damage a rotating shaft and a locating part.

The second objective of the present invention is to provide an electric balance car, which has a good operation of the rotating shaft, a low noise and a higher safety.

The utility model discloses an one of the purpose adopts following technical scheme to realize:

a balance car rotating mechanism comprises a first rotating part and a second rotating part, wherein a rotating shaft is arranged between the first rotating part and the second rotating part, one end of the rotating shaft is rotatably arranged in the first rotating part, and the other end of the rotating shaft is fixedly arranged in the second rotating part; the rotating shaft is internally provided with a limiting part which can be twisted and deformed within a range angle in a penetrating manner, and two ends of the limiting part are respectively fixed with the first rotating part and the second rotating part.

Preferably, the first rotating part includes a sleeve, and the second rotating part includes a shaft fixing part on the vehicle body; one end of the rotating shaft is positioned in the sleeve and can rotate relative to the sleeve, and the other end of the rotating shaft is fixedly connected with a rotating shaft fixing part on the vehicle body.

Preferably, the rotating shaft is of a cylindrical structure, and the outer diameter of the rotating shaft is matched with the inner diameter of the sleeve; a snap spring or a gasket is sleeved at the joint of the rotating shaft and the sleeve; and a lubricating layer is arranged between the contact surfaces of the rotating shaft and the sleeve.

Preferably, the first rotating part further comprises a first fixed part located on the vehicle body, and the second rotating part comprises a second fixed part located on the vehicle body; the sleeve is fixedly connected with the first fixing part.

Preferably, the first fixing portion includes a sleeve fixing groove having a diameter matched with an outer diameter of the sleeve;

the sleeve is cylindrical with a longitudinal opening, and the sleeve has a state that the opening is shrunk and fixed in the sleeve fixing groove.

Preferably, the first fixing portion and the second fixing portion further include an elastic sheet fixing post, a first fixing hole is formed in the elastic sheet fixing post, a second fixing hole is formed in the limiting member, and a fastener penetrates through the first fixing hole and the second fixing hole to fix the limiting member on the elastic sheet fixing post;

the two elastic sheet fixing columns are respectively positioned at two ends of the rotating shaft; and/or, the cover is equipped with two jump rings in the pivot, two the jump ring respectively with telescopic both sides face laminating.

Preferably, the rotating shaft fixing part further comprises a rotating shaft fixing groove and a rotating shaft fixing column, the rotating shaft is provided with a rotating shaft fixing hole, one end of the rotating shaft is placed in the rotating shaft fixing groove, and the rotating shaft fixing column penetrates through the rotating shaft fixing hole to fix the rotating shaft and the rotating shaft fixing part;

the pivot fixed column is the toper cylinder, perhaps, the top of pivot fixed column is equipped with toper guide.

Preferably, one end of the limiting member is fixedly connected with the rotating shaft fixing portion.

Preferably, the limiting part is of a spring plate type structure and comprises at least one spring plate layer, and second fixing holes are formed in two ends of the spring plate layer.

Preferably, the elastic sheet layer is a flat elastic sheet; at least two bullet lamella pass through fixed column fixed connection, and the second fixed orifices at both ends is concentric to be aligned.

The second purpose of the utility model is realized by adopting the following technical scheme:

an electric balance car comprises a car body and the balance car rotating mechanism, wherein the first rotating part and the second rotating part are respectively connected and fixed with the car body; the vehicle body comprises a control part, an upper shell and a lower shell, the upper shell comprises a first upper shell and a second upper shell which are arranged side by side, the lower shell comprises a first lower shell and a second lower shell which are arranged side by side, the first upper shell and the first lower shell correspondingly form a first containing cavity, the second upper shell and the second lower shell correspondingly form a second containing cavity, and the control part is positioned in the first containing cavity and/or the second containing cavity;

the sleeve is fixedly connected with a first upper shell or a second upper shell of the upper shell, one of the first upper shell and the second upper shell is provided with a first fixing part for fixing the sleeve, the other one of the first upper shell and the second upper shell is provided with a second fixing part, and the lower shell is provided with a first fixing groove matched with the first fixing part and a second fixing groove matched with the second fixing part;

or, the sleeve is fixedly connected with the first lower shell or the second lower shell of the lower shell, one of the first lower shell and the second lower shell is provided with a first fixing part for fixing the sleeve, the other one of the first lower shell and the second lower shell is provided with a second fixing part, and the upper shell is provided with a first fixing groove matched with the first fixing part and a second fixing groove matched with the second fixing part.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the first rotating part and the second rotating part of the utility model can rotate relatively to each other under the action of the rotating shaft, at the same time, the first rotating part and the second rotating part are further connected through a limiting piece, the limiting piece rotates along with the first rotating part and the second rotating part, because the limiting piece can be deformed, the first rotating part and the second rotating part have a space which rotates relative to each other, the limiting piece can only be twisted and deformed within a certain angle range, so that the rotating angles of the first rotating part and the second rotating part are limited, when a certain torsion degree is reached, the torque is too large, the torsion can not be carried out any more, and the first rotating part and the second rotating part can not relatively continue to rotate in the same direction, thereby reach spacing (restriction rotation) purpose, prevent that the balance car from controlling the dangerous accident that first rotation portion and second rotation portion rotation range that causes too big and produce by mistake.

Drawings

Fig. 1 is a schematic view of an exploded structure of a rotating mechanism according to an embodiment of the present invention, which shows a structure having a sleeve fixing groove;

fig. 2 is a schematic view of another angular explosion structure of the rotating mechanism according to an embodiment of the present invention;

fig. 3 is a schematic top view of a rotating mechanism according to an embodiment of the present invention;

FIG. 4 is a schematic cross-sectional view taken along line A-A of FIG. 3;

fig. 5 is an exploded view of a rotating mechanism according to another embodiment of the present invention;

fig. 6 is a schematic view of another angular explosion structure of a rotating mechanism according to another embodiment of the present invention;

fig. 7 is a schematic top view of a rotating mechanism according to another embodiment of the present invention;

FIG. 8 is a schematic cross-sectional view taken along line B-B of FIG. 7;

fig. 9 is a schematic structural view of a sleeve according to an embodiment of the present invention.

In the figure: 10. a rotating shaft; 11. a clamp spring; 12. a rotating shaft fixing hole; 20. a limiting member; 21. a bullet sheet layer; 22. a second fixing hole; 23. fixing a column; 24. a fastener; 30. a first rotating section; 31. a sleeve; 311. an opening; 32. a first fixed part; 33. a sleeve fixing groove; 34. the elastic sheet fixing column; 341. a first fixing hole; 40. a second rotating part; 41. a second fixed part; 42. a rotating shaft fixing groove; 43. a rotating shaft fixing column; 44. reinforcing ribs; 50. an upper housing; 51. a first upper case; 52. a second upper case; 53. a first fixing groove; 54. a second fixing groove; 60. a lower housing; 61. a first lower case; 62. a second lower case.

Detailed Description

The present invention will now be described in more detail with reference to the accompanying drawings, and it is to be understood that the following description of the present invention is made only by way of illustration and not by way of limitation with reference to the accompanying drawings. The various embodiments may be combined with each other to form other embodiments not shown in the following description.

In the description of the present invention, it should be noted that, for the orientation words, if there are terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the orientation and positional relationship indicated are based on the orientation or positional relationship shown in the drawings, and only for the convenience of describing the present invention and simplifying the description, it is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and not be construed as limiting the specific scope of the present invention.

Furthermore, if the terms "first" and "second" are used for descriptive purposes only, they are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features. Thus, the definition of "a first" or "a second" feature may explicitly or implicitly include one or more of the features, and in the description of the invention, "a plurality" means two or more unless specifically defined otherwise.

In the present invention, unless otherwise expressly specified or limited, the terms "assembled", "connected", and "connected", if any, are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

Referring to fig. 1 to 9, the balance car rotating mechanism and the electric balance car according to the embodiment of the present invention will be clarified in the following description, wherein the rotating angle of the rotating shaft, the first rotating portion and the second rotating portion is limited by the limiting member which is set to be twisted and deformed within the range angle, the current design is changed to be limited by collision, the problem of noise and easy damage of the current rotating mechanism is solved, the structure is simple, and the limiting effect is good.

As shown in fig. 1 to 9, the utility model discloses a balance car rotating mechanism, which comprises a first rotating part and a second rotating part, wherein a rotating shaft is arranged between the first rotating part and the second rotating part, one end of the rotating shaft is rotatably arranged in the first rotating part, and the other end is fixedly arranged in the second rotating part; the rotating shaft is internally provided with a limiting part which can be twisted and deformed within a range angle in a penetrating manner, and two ends of the limiting part are respectively fixed with the first rotating part and the second rotating part.

The rotating part can be a balance car body or a part on the balance car body, when the rotating part is the balance car body, the first rotating part can be a left car body, and correspondingly, the second rotating part is a right car body of the balance car, and of course, the first rotating part can also be a right car body, and correspondingly, the second rotating part is the left car body of the balance car. When the rotating part is a component on the vehicle body, the first rotating part is arranged on the left vehicle body, and correspondingly, the second rotating part is arranged on the right vehicle body.

Because the first end of pivot is rotated and is set up in first rotating portion, and the second end is fixed to be set up in the second rotating portion, when first rotating portion and second rotating portion were exerted the not equidirectional power, first rotating portion and second rotating portion realized relative rotation through the pivot, and the locating part that is located in the pivot has played the effect of restriction first rotating portion and the relative turned angle of second rotating portion.

Under the control of a human body, the first rotating portion 30 and the second rotating portion 40 rotate relatively along the rotating shaft 10, the rotating shaft 10 rotates relatively to the first rotating portion 30 and the second rotating portion 40, at this time, two ends of the limiting member 20 located in the rotating shaft 10 are fixedly connected with the first rotating portion 30 and the second rotating portion 40 respectively, therefore, two ends of the limiting member 20 rotate in different directions along with the first rotating portion 30 and the second rotating portion 40 respectively, the limiting member 20 is longitudinally distorted and deformed, when a certain torsion degree is reached, the torque is too large, the limiting member 20 cannot be distorted any more, the first rotating portion 30 and the second rotating portion 40 cannot continue to rotate in the original direction, so that the purpose of limiting (rotation limiting) is achieved, and dangerous accidents caused by overlarge rotating amplitude of the left vehicle body and the right vehicle body due to misoperation of the balance vehicle are prevented. Because of the damping action of the limiting piece, the operation and control feeling is good, the balance car body can be reset, and the risk of misoperation is reduced.

Preferably, the limiting part is located on the central axis of the rotating shaft, so that the rotating process can be sensitive, and the rotating can be quickly recovered. Through relevant tests, if the limiting part is not on the central axis of the rotating shaft, the rotation is not flexible, the coincidence degree of the central line of the limiting part and the central axis of the rotating shaft is higher, the rotation is more flexible, and the recovery is quicker.

In some embodiments, to achieve the rotation fit between the first end of the rotating shaft and the first rotating portion, the first rotating portion 30 includes a sleeve 31, the first end of the rotating shaft 10 is located in the sleeve 31 and can rotate relative to the sleeve 31, and the sleeve 31 can make the rotating shaft 10 rotate more smoothly; in order to fixedly connect the second end of the rotating shaft to the second rotating portion, the second rotating portion 40 includes a rotating shaft fixing portion located on the vehicle body, and the second end of the rotating shaft is fixedly connected to the rotating shaft fixing portion on the vehicle body. The specific structure of pivot fixed part does: the rotating shaft fixing part further comprises a rotating shaft fixing groove 42 and a rotating shaft fixing column 43, a rotating shaft fixing hole 12 is formed in the rotating shaft 10, one end of the rotating shaft 10 is placed in the rotating shaft fixing groove 42, and the rotating shaft fixing column 43 penetrates through the rotating shaft fixing hole 12 to enable the rotating shaft 10 to be fixed with the rotating shaft fixing part; preferably, the rotating shaft fixing post 43 is a tapered cylinder, or a tapered guide portion is provided at the top end of the rotating shaft fixing post 43, so that the rotating shaft fixing post 43 can be conveniently inserted into the rotating shaft fixing hole 12.

For making locating part 20 take place torsional deformation in the scope angle, and have good resilience performance, locating part 20 can be the spring or shell fragment that elastic material made, the maximum value of scope angle is the dislocation angle at locating part both ends when taking place the biggest torsional deformation, the minimum is the angle when locating part does not take place deformation, be 0 degree promptly, and the concrete torsional deformation angle of locating part sets up according to the material of selecting and the actual length of locating part, the producer can select suitable locating part material and set up the actual length of locating part according to the relative rotation angle of first rotation portion and second rotation portion, thereby make the torsional deformation of locating part satisfy the operation requirement. Preferably, the limiting member 20 is a leaf spring type structure, and includes at least one leaf spring layer 21, and the leaf spring layer 21 is a flat leaf spring made of a metal material, and in order to fix the leaf spring layer 21 on the first rotating portion 30 and the second rotating portion 40, the two ends of the leaf spring layer 21 are provided with second fixing holes 22, and the leaf spring layer 21 is fixedly connected with the first rotating portion 30 and the second rotating portion 40 through screws. In other embodiments, the fastening hole may be a hole directly formed on the pellet layer 21, or a separate hole structure with internal threads may be embedded in the pellet. The stopper 20 also has a function of connecting the first rotating portion 30 and the second rotating portion 40, and prevents the first rotating portion 30 and the second rotating portion 40 from being separated.

As shown in fig. 4, the limiting member 20 includes at least two elastic sheet layers 21, the number of the elastic sheet layers 21 may be 2, 3, 4, and the like, the at least two elastic sheet layers 21 are fixedly connected by one or two fixing posts 23, as shown in fig. 4 and fig. 8, the 4 elastic sheet layers 21 are fixed together by the two fixing posts 23 in the middle, and the situation of multi-layer elastic sheet dislocation generated during twisting is prevented. The second fixing holes 22 at the two ends of the plurality of bullet sheet layers 21 are concentrically aligned to ensure that the plurality of bullet sheet layers 21 are aligned after being installed and deformed and restored simultaneously. The torsional strength of distortion can be increased to the multilayer shell fragment, and is more reliable firm, prevents the fracture condition, causes danger.

In addition, in order to prevent dust and impurities from entering the first rotating part 30 and the second rotating part 40 through the rotating shaft 10, a connecting portion of the rotating shaft 10 and the sleeve 31 facing the outside is sleeved with a snap spring 11 or a washer. A lubricating layer is arranged between the contact surfaces of the rotating shaft 10 and the sleeve 31, so that the rotating shaft 10 and the sleeve 31 rotate more smoothly. The lubricating layer may be a lubricating oil or other common lubricating material.

The two ends of the limiting member 20 need to be fixedly connected to the first rotating portion and the second rotating portion, so as to generate torsional deformation when the first rotating portion and the second rotating portion rotate relatively, and there are various fixing manners of the limiting member to the first rotating portion and the second rotating portion, in some embodiments, when the first rotating portion includes a sleeve, and the sleeve is fixedly connected to other components of the first rotating portion, such as a sleeve mounting groove, the first end of the limiting member may be fixedly connected to the sleeve; when the second rotating portion includes the rotating shaft fixing portion, the second end of the limiting member is fixedly connected to the rotating shaft fixing portion, so as to simplify the structure of the second rotating portion, and more specifically, the second end of the limiting member is fixedly connected to the rotating shaft fixing post 43.

In other embodiments, as shown in fig. 1 and 9, the first rotating part 30 further includes a first fixing part 32 on the vehicle body, and the second rotating part 40 includes a second fixing part 41 on the vehicle body. The first end of the limiting piece is fixedly connected with the first fixing portion, and the second end of the limiting piece is fixedly connected with the second fixing portion.

More specifically, the first fixing portion 32 and the second fixing portion 41 both include an elastic sheet fixing post 34, a first fixing hole 341 is formed in the elastic sheet fixing post 34, a second fixing hole 22 is formed in the limiting member 20, and the limiting member 20 is fixed to the elastic sheet fixing post 34 by the fastening member 24 penetrating through the first fixing hole 341 and the second fixing hole 22; the fastening member 24 may pass through the first fixing hole 341 and the second fixing hole 22 from the top to the bottom, or may pass through the first fixing hole 341 and the second fixing hole 22 from the bottom to the top. The fastening member 24 penetrates the lower case 60 of the vehicle body from below to above through the first fixing hole 341. As shown in fig. 4 and 8, two spring fixing posts 34 are respectively disposed at two ends of the rotating shaft 10 to limit the left and right linear movement of the rotating shaft 10.

The elastic sheet fixing posts 34 are disposed at both sides of the sleeve fixing groove 33 and the rotation shaft fixing groove 42, and also enhance mechanical strength of the sleeve fixing groove 33 and the rotation shaft fixing groove 42. In addition, in order to further increase the strength of the sleeve fixing groove 33, the rotating shaft fixing groove 42 and the elastic sheet fixing column 34, the side edges of the sleeve fixing groove 33, the rotating shaft fixing groove 42 and the elastic sheet fixing column 34 are all provided with reinforcing ribs 44.

The sleeve 31 is fixedly connected with the first fixing part 32, the first fixing part 32 comprises a sleeve fixing groove 33, and the diameter of the sleeve fixing groove 33 is matched with the outer diameter of the sleeve 31; the sleeve fixing groove 33 is a circular groove or a semicircular groove, and the sleeve is located in the sleeve fixing groove.

The sleeve is fixed in the sleeve fixed slot in a plurality of ways, one is: the sleeve 31 has a cylindrical shape with a longitudinal opening 311, and the sleeve 31 has a state in which the opening 311 is shrunk and fixed in the sleeve fixing groove 33. The other is that the sleeve 31 has no opening 311 and is fixed in the sleeve fixing groove 33 by injection molding or adhesion.

In some embodiments, as shown in fig. 1, the sleeve fixing groove 33 is a cylindrical structure, and when the sleeve is installed, the sleeve is placed in the sleeve fixing groove after the opening of the sleeve is closed, and the sleeve is elastically restored in the sleeve fixing groove and fixed in the sleeve fixing groove.

In other embodiments, as shown in fig. 5, the sleeve fixing groove 33 is a semicircular groove, the balance car includes an upper shell and a lower shell, the components of the first rotating part are correspondingly disposed on the upper shell and the lower shell of the left (right) car body, the components of the second rotating part are correspondingly disposed on the upper shell and the lower shell of the right (left) car body, and the sleeve fixing groove can be disposed on the upper shell and also can be disposed on the lower shell. As shown in fig. 5 and 6, when the sleeve fixing groove is formed in the lower case, the first fixing groove 53 is formed in the upper case, and the sleeve is fixed by the first fixing groove and the sleeve fixing groove, so that the sleeve is fixed in the sleeve fixing groove, the number of components is reduced, and the installation process is simplified.

The utility model also designs an electric balance car, which comprises a car body and a balance car rotating mechanism described in the above embodiment, wherein the first rotating part 30 and the second rotating part 40 are respectively connected and fixed with the car body; the vehicle body includes a first vehicle body and a second vehicle body, the first vehicle body and the second vehicle body are arranged side by side, and therefore can be also called as a left vehicle body and a right vehicle body, the first rotating portion 30 is located on the first vehicle body, the second rotating portion 40 is located on the second vehicle body, and equivalently, the sleeve 31 is fixedly connected with the first vehicle body, and one end of the rotating shaft 10 is fixedly connected with the second vehicle body.

More specifically, the vehicle body includes a control portion, an upper housing 50 and a lower housing 60, the upper housing 50 includes a first upper housing 51 and a second upper housing 52 that are disposed side by side, the lower housing 60 includes a first lower housing 61 and a second lower housing 62 that are disposed side by side, the first upper housing 51 and the first lower housing 61 correspond to form a first cavity, the second upper housing 52 and the second lower housing 62 correspond to form a second cavity, and the control portion is located in the first cavity and/or the second cavity.

In some embodiments, the first rotating portion 30 and the second rotating portion 40 are located on the upper housing 50, the sleeve 31 is fixedly connected to the first upper housing 51 or the second upper housing 52 of the upper housing 50, one of the first upper housing 51 and the second upper housing 52 is provided with a first fixing portion 32 for fixing the sleeve 31, and the other is provided with a second fixing portion 41 and a rotating shaft fixing portion, correspondingly, the lower housing 60 is provided with a first fixing groove 53 adapted to the first fixing portion 32 and a second fixing groove 54 adapted to the rotating shaft fixing portion, the second fixing groove 54 may also have rotating shaft fixing columns 43, and two sets of rotating shaft fixing columns fix the rotating shaft from two angles, so as to increase the strength of the rotating shaft fixing. The sides of the first and second fixing

grooves

53 and 54 are also provided with reinforcing ribs 44 to enhance mechanical strength.

In other embodiments, the first rotating portion 30 and the second rotating portion 40 are located on the lower casing 60, the sleeve 31 is fixedly connected to the first lower casing 61 or the second lower casing 62 of the lower casing 60, one of the first lower casing 61 and the second lower casing 62 is provided with a first fixing portion 32 for fixing the sleeve 31, and the other is provided with a second fixing portion 41 and a rotating shaft fixing portion, correspondingly, the upper casing 50 is provided with a first fixing groove 53 adapted to the first fixing portion 32 and a second fixing groove 54 adapted to the rotating shaft fixing portion, the second fixing groove 54 may also have rotating shaft fixing columns, two sets of rotating shaft fixing columns fix the rotating shaft from two angles up and down, and the strength of fixing the rotating shaft is increased. The sides of the first and second fixing

grooves

The above embodiments are only preferred embodiments of the present invention, and the protection scope of the present invention cannot be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are all within the protection scope of the present invention.

Claims

1. The utility model provides a balance car slewing mechanism which characterized in that: the device comprises a first rotating part and a second rotating part, wherein a rotating shaft is arranged between the first rotating part and the second rotating part, one end of the rotating shaft is rotatably arranged in the first rotating part, and the other end of the rotating shaft is fixedly arranged in the second rotating part; the rotating shaft is internally provided with a limiting part which can be twisted and deformed within a range angle in a penetrating manner, and two ends of the limiting part are respectively fixed with the first rotating part and the second rotating part.

2. The balance car turning mechanism of claim 1, wherein: the first rotating part comprises a sleeve, and the second rotating part comprises a rotating shaft fixing part positioned on the vehicle body; one end of the rotating shaft is positioned in the sleeve and can rotate relative to the sleeve, and the other end of the rotating shaft is fixedly connected with a rotating shaft fixing part on the vehicle body.

3. The balance car turning mechanism of claim 2, wherein: the rotating shaft is of a cylindrical structure, and the outer diameter of the rotating shaft is matched with the inner diameter of the sleeve; a snap spring or a gasket is sleeved at the joint of the rotating shaft and the sleeve; and a lubricating layer is arranged between the contact surfaces of the rotating shaft and the sleeve.

4. The balance car turning mechanism of claim 2, wherein: the first rotating part further comprises a first fixing part positioned on the vehicle body, and the second rotating part comprises a second fixing part positioned on the vehicle body; the sleeve is fixedly connected with the first fixing part.

5. The balance car turning mechanism of claim 4, wherein: the first fixing part comprises a sleeve fixing groove, and the diameter of the sleeve fixing groove is matched with the outer diameter of the sleeve;

6. The balance car turning mechanism of claim 4, wherein: the first fixing part and the second fixing part further comprise elastic piece fixing columns, first fixing holes are formed in the elastic piece fixing columns, second fixing holes are formed in the limiting pieces, and fasteners penetrate through the first fixing holes and the second fixing holes to fix the limiting pieces on the elastic piece fixing columns;

7. The balance car turning mechanism of claim 2, wherein: the rotating shaft fixing part also comprises a rotating shaft fixing groove and a rotating shaft fixing column, a rotating shaft fixing hole is formed in the rotating shaft, one end of the rotating shaft is placed in the rotating shaft fixing groove, and the rotating shaft fixing column penetrates through the rotating shaft fixing hole to fix the rotating shaft and the rotating shaft fixing part;

8. The balance car turning mechanism of claim 2, wherein: one end of the limiting piece is fixedly connected with the rotating shaft fixing part.

9. The balance car turning mechanism of any one of claims 1 to 8, characterized in that: the locating part is the shell fragment formula structure, including at least one shell fragment layer, the both ends of shell fragment layer are equipped with the second fixed orifices.

10. The balance car turning mechanism of claim 9, wherein: the elastic sheet layer is a flat elastic sheet; at least two bullet lamella pass through fixed column fixed connection, and the second fixed orifices at both ends is concentric to be aligned.

11. An electrodynamic balance car, characterized by, including the vehicle body and the balance car slewing mechanism of any one of claims 1 to 10, the said first rotating part and the said second rotating part are connected fixedly with the said vehicle body respectively; the vehicle body comprises a control part, an upper shell and a lower shell, the upper shell comprises a first upper shell and a second upper shell which are arranged side by side, the lower shell comprises a first lower shell and a second lower shell which are arranged side by side, the first upper shell and the first lower shell correspondingly form a first containing cavity, the second upper shell and the second lower shell correspondingly form a second containing cavity, and the control part is positioned in the first containing cavity and/or the second containing cavity;