CN213892765U - Balance car slewing mechanism and electrodynamic balance car - Google Patents

Abstract

The utility model discloses a balance car slewing mechanism and electrodynamic balance car, including first rotation portion and second rotation portion, be equipped with the pivot between first rotation portion and the second rotation portion, one end of pivot is located first rotation portion and is connected with first rotation portion rotation, and the other end is located second rotation portion and is connected with second rotation portion rotation, and the pivot rotates relative first rotation portion and second rotation portion; the rotating shaft is internally provided with a limiting part which can be twisted and deformed within a range angle, the limiting part is arranged in the rotating shaft in a penetrating way, and two ends of the limiting part penetrate out of the rotating shaft and are fixedly arranged with the first rotating part and the second rotating part respectively. 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 purpose of limiting (limiting rotation) is achieved.

Description

Balance car slewing mechanism and electrodynamic balance car

Technical Field

The utility model relates to an electrodynamic 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 located in the first rotating part and is rotatably connected with the first rotating part, the other end of the rotating shaft is located in the second rotating part and is rotatably connected with the second rotating part, and the rotating shaft rotates relative to the first rotating part and the second rotating part; the rotating shaft is internally provided with a limiting part which can be twisted and deformed within a range angle, the limiting part is arranged in the rotating shaft in a penetrating mode, and two ends of the limiting part penetrate out of the rotating shaft and are fixedly arranged with the first rotating portion and the second rotating portion respectively.

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.

Preferably, the first rotating portion includes a first sleeve, the second rotating portion includes a second sleeve, two ends of the rotating shaft are respectively located in the first sleeve and the second sleeve, and the rotating shaft rotates relative to the first sleeve and the second sleeve.

Preferably, the rotating shaft is of a cylindrical structure, and the outer diameter of the rotating shaft is matched with the inner diameters of the first sleeve and the second sleeve; a lubricating layer is arranged between the rotating shaft and the contact surfaces of the first sleeve and the second sleeve; and a washer or a snap spring is sleeved on the rotating shaft.

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

Preferably, the first fixing part is provided with a first fixing seat for mounting the first sleeve, and the second fixing part is provided with a second fixing seat for mounting the second sleeve; the first fixing seat and the second fixing seat are respectively arranged at corresponding positions on the first fixing part and the second fixing part; the first sleeve and the second sleeve are both cylindrical with a longitudinal opening, and the first sleeve is in a state that the opening is shrunk and fixed in the first fixed seat; the second sleeve is provided with an opening which is shrunk and fixed in the second fixed seat.

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; and/or, the first fixing part and the second fixing part are provided with rotating shaft baffles, and the rotating shaft baffles are respectively positioned on one side of the first fixing seat and one side of the second fixing seat.

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 or integrally formed 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 first sleeve and the second sleeve are fixedly connected with the upper shell, a first fixed seat used for fixing the first sleeve and a second fixed seat used for fixing the second sleeve are arranged on the upper shell, and a fixed seat accommodating groove matched with the first fixed seat and the second fixed seat is arranged on the lower shell;

or, first sleeve and second sleeve with casing fixed connection down, be equipped with on the casing down and be used for fixing first telescopic first fixing base and be used for fixing the telescopic second fixing base of second, go up be equipped with on the casing with first fixing base with the fixing base holding tank of second fixing base looks adaptation.

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 rotate 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 an exploded schematic view of a rotating mechanism according to an embodiment of the present invention;

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

In the figure: 10. a rotating shaft; 11. a gasket; 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 first sleeve; 311. an opening; 32. A first fixed part; 33. a first fixed seat; 34. the elastic sheet fixing column; 341. a first fixing hole; 40. a second rotating part; 41. a second sleeve; 42. a second fixed part; 43. a second fixed seat; 44. a rotating shaft baffle; 45. fixing a sleeve; 46. reinforcing ribs; 50. an upper housing; 51. a first upper case; 52. a second upper case; 53. a fixed seat accommodating 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 5, the utility model discloses a balance car slewing mechanism and electrodynamic balance car will be clarified in the following description, wherein, the turned angle of countershaft, first rotation portion and second rotation portion is restricted through setting up the locating part that can twist reverse deformation in scope angle, has changed current design and has carried out spacing mode through the collision, has solved current revolution mechanic's noise and easy problem of damaging, simple structure, and spacing effectual.

As shown in fig. 1 to 5, the utility model relates to a balance car rotating mechanism, which comprises a first rotating part 30 and a second rotating part 40, wherein a rotating shaft 10 is arranged between the first rotating part 30 and the second rotating part 40, one end of the rotating shaft 10 is positioned in the first rotating part 30, the other end is positioned in the second rotating part 40, and the rotating shaft 10 rotates relative to the first rotating part 30 and the second rotating part 40; the rotation shaft 10 is provided with a deformable limiting member 20 therein, the limiting member 20 is inserted into the rotation shaft 10, and two ends of the limiting member extend out of the rotation shaft 10 and are respectively fixed to the first rotation portion 30 and the second rotation portion 40.

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.

Above-mentioned structure requires that locating part 20 takes place to deform at certain angular range, and has good resilience performance, locating part 20 can be the spring or the 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 selection 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 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, 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.

The rotating part can be a balance car body or a rotating 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, correspondingly, the second rotating part is a right car body of the balance car, of course, the first rotating part can also be a right car body, correspondingly, the second rotating part is the left car body of the balance car.

As shown in fig. 1 and 2, the first rotating portion 30 includes a first sleeve 31, the second rotating portion 40 includes a second sleeve 41, two ends of the rotating shaft 10 are respectively located in the first sleeve 31 and the second sleeve 41, the rotating shaft 10 rotates relative to the first sleeve 31 and the second sleeve 41, and the first rotating portion 30 and the second rotating portion 40 rotate more smoothly. Under human control, the first rotating portion 30 and the second rotating portion 40 rotate relatively along the rotating shaft 10, the first sleeve 31 and the second sleeve 41 are sleeved on the rotating shaft 10 and rotate relatively to the rotating shaft 10, at this time, two ends of the limiting member 20 are respectively static relative to the first rotating portion and the second rotating portion and rotate in different directions along with the first rotating portion 30 and the second rotating portion 40, the limiting member 20 is longitudinally distorted and deformed, when a certain distortion 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 left and right vehicle bodies due to misoperation of the balance car are prevented.

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 circlip or a washer 11 is sleeved at the joint of the rotating shaft 10 and the sleeve. A lubricating layer is arranged between the contact surfaces of the rotating shaft 10 and the first sleeve 31 and the second sleeve 41, so that the rotating shaft 10 and the first sleeve 31 and the second sleeve 41 rotate more smoothly. The lubricating layer may be a lubricating oil or other common lubricating material.

There are various ways of making the two ends of the limiting member 20 stationary with respect to the first rotating portion and the second rotating portion, in some embodiments, the two ends of the limiting member 20 are fixedly connected to the first sleeve 31 and the second sleeve 41, respectively, and the first sleeve 31 and the second sleeve 41 are fixedly connected to the first rotating portion 30 and the second rotating portion 40, respectively, so that when the first rotating portion 30 and the second rotating portion 40 rotate, the two ends of the limiting member 20 rotate along with the first sleeve 31 and the second sleeve 41 to generate deformation.

In other embodiments, both ends of the limiting member 20 may be fixedly connected to other portions of the first rotating portion 30 and the second rotating portion 40, respectively.

More specifically, the first rotating portion 30 further includes a first fixing portion 32 on the vehicle body, and the second rotating portion 40 further includes a second fixing portion 42 on the vehicle body; the first sleeve 31 is fixedly connected with the first fixing part 32; the second sleeve 41 is fixedly connected with the second fixing part 42; the two ends of the limiting member 20 are respectively fixedly connected to the first fixing portion 32 and the second fixing portion 42. The body comprises a first body and a second body, which are arranged side by side and can therefore also be called left body and right body, the first turning part 30 being located on the first body and the second turning part 40 being located on the second body, corresponding to the first sleeve 31 being fixedly connected to the first body and the second sleeve 41 being fixedly connected to the second body.

More specifically, the first fixing portion 32 is provided with a first fixing seat 33 for mounting the first sleeve 31, the second fixing portion 42 is provided with a second fixing seat 43 for mounting the second sleeve 41, and the first fixing seat 33 and the second fixing seat 43 are arranged side by side; the first fixed seat 33 and the second fixed seat 43 are respectively arranged at corresponding positions on the first fixed part 32 and the second fixed part 42; the first sleeve 31 and the second sleeve 41 are both cylindrical with a longitudinal opening 311, and the first sleeve 31 has a state that the opening 311 is shrunk and fixed in the first fixed seat 33; the second sleeve 41 has an opening 311 which is tightened and fixed in the second holder 43. In some embodiments, the first sleeve 31 and the second sleeve 41 do not have the opening 311, but are fixed in the first fixing seat 33 and the second fixing seat 43 by injection molding or gluing. In some embodiments, the first fixing seat 33 and the second fixing seat 43 are fixing sleeves 45, and the fixing sleeves 45 are respectively matched with the first sleeve 31 and the second sleeve 41 and have a circular cylindrical structure, and are covered on the first sleeve 31 and the second sleeve 41 to prevent the first sleeve 31 and the second sleeve 41 from being separated from the first fixing seat 33 and the second fixing seat 43. The fixing sleeve 45 is of a cylindrical structure, and when the fixing sleeve is installed, the opening in the sleeve is closed and then placed into the fixing sleeve, and the sleeve rebounds from the opening in the fixing sleeve and is fixed in the fixing sleeve.

In some embodiments, the first rotating portion and the second rotating portion do not include a sleeve, the rotating shaft directly rotates in a fixed sleeve, and a complete arc surface is formed in the fixed sleeve, so that the rotation stability of the rotating shaft is ensured.

In other embodiments, the first rotating portion and the second rotating portion do not include a fixed sleeve, but adopt a structure that the upper shell and the lower shell directly clamp the sleeve, more specifically, the upper shell is provided with a first fixed groove, the lower shell is correspondingly provided with a second fixed groove, the first fixed groove and the second fixed groove are both semi-circular structures, and are matched with the outer diameter of the sleeve, the sleeve is clamped and fixed between the first fixed groove and the second fixed groove, so that other fixed structures are not needed, and the cost is saved.

As shown in fig. 1 and fig. 2, in some embodiments, two ends of the limiting member 20 are respectively fixedly connected to the first fixing portion 32 and the second fixing portion 42, and more specifically, the first fixing portion 32 and the second fixing portion 42 further include an elastic fixing post 34, a first fixing hole 341 is disposed on the elastic fixing post 34, a second fixing hole 22 is disposed on the limiting member 20, and the fastening member 24 passes through the first fixing hole 341 and the second fixing hole 22 to fix the limiting member 20 on the elastic fixing post 34. The elastic sheet fixing posts 34 are disposed in the first vehicle body and the second vehicle body, so that the limiting member 20 is fixedly connected to the first vehicle body and the second vehicle body, and two ends of the limiting member 20 rotate along with the first vehicle body and the second vehicle body respectively. 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.

In some embodiments, the first fixing portion 32 and the second fixing portion 42 are provided with a rotation shaft baffle 44, the rotation shaft baffle 44 is respectively located at one side of the first fixing seat 33 and one side of the second fixing seat 43, the rotation shaft 10 is located between the two rotation shaft baffles 44, and the rotation shaft baffles 44 are used for preventing the rotation shaft 10 from moving left and right. In addition, the rotation shaft baffle 44 is disposed at the side of the first fixed seat 33 and the second fixed seat 43, and can also play a role in reinforcing the first fixed seat 33 and the second fixed seat 43. In order to further increase the strength of the first fixing seat 33, the second fixing seat 43 and the elastic sheet fixing column 34, the side edges of the first fixing seat 33, the second fixing seat 43 and the elastic sheet fixing column 34 are all provided with reinforcing ribs 46 to enhance the mechanical strength.

The utility model also relates to an electric balance car, which comprises a car body and the balance car rotating mechanism of the embodiment, wherein the first rotating part 30 and the second rotating part 40 are respectively connected and fixed with the car body or are integrally formed with the car body; the vehicle body comprises a first vehicle body and a second vehicle body, which are arranged side by side and can therefore also be referred to as a left vehicle body and a right vehicle body, the first turning part 30 being located on the first vehicle body and the second turning part 40 being located on the second vehicle body, corresponding to the first sleeve 31 being fixedly connected to the first vehicle body and the second sleeve 41 being fixedly connected to the second vehicle body.

More specifically, the vehicle body comprises a control part, an upper shell 50 and a lower shell 60, which correspond to a first vehicle body and a second vehicle body, wherein the upper shell 50 comprises a first upper shell 51 and a second upper shell 52 which are arranged side by side, the lower shell 60 comprises a first lower shell 61 and a second lower shell 62 which are arranged side by side, the first upper shell 51 and the first lower shell 61 correspond to form a first containing cavity, the second upper shell 52 and the second lower shell 62 correspond to form a second containing cavity, the control part is arranged in the first containing cavity and/or the second containing cavity, and the control part is used for controlling the vehicle body and comprises the starting, the stopping, the charging and discharging of a battery, the movement of wheels and the like of the vehicle body.

In some embodiments, the first rotating portion 30 and the second rotating portion 40 are located on the upper housing 50, the first sleeve 31 and the second sleeve 41 are fixedly connected to the upper housing 50, the upper housing 50 is provided with a first fixing seat 33 for fixing the first sleeve 31 and a second fixing seat 43 for fixing the second sleeve 41, correspondingly, the lower housing 60 is provided with a fixing seat receiving groove 53 adapted to the first fixing seat 33 and the second fixing seat 43, and the side of the fixing seat receiving groove 53 is also provided with a reinforcing rib 46 to enhance the mechanical strength of the fixing seat receiving groove 53.

In other embodiments, the first rotating portion 30 and the second rotating portion 40 are located on the lower housing 60, the first sleeve 31 and the second sleeve 41 are fixedly connected to the lower housing 60, the lower housing 60 is provided with the first fixing seat 33 for fixing the first sleeve 31 and the second fixing seat 43 for fixing the second sleeve 41, correspondingly, the upper housing 50 is provided with the fixing seat receiving groove 53 adapted to the first fixing seat 33 and the second fixing seat 43, and the side of the fixing seat receiving groove 53 is also provided with the reinforcing rib 46 to enhance the mechanical strength of the fixing seat receiving groove 53.

First fixing base and second fixing base and last casing or casing formula structure as an organic whole down have reduced the installation step, have improved machining efficiency.

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 (10)

1. The utility model provides a balance car slewing mechanism which characterized in that: the rotating shaft is arranged between the first rotating part and the second rotating part, one end of the rotating shaft is positioned in the first rotating part and is rotationally connected with the first rotating part, the other end of the rotating shaft is positioned in the second rotating part and is rotationally connected with the second rotating part, and the rotating shaft rotates relative to the first rotating part and the second rotating part; the rotating shaft is internally provided with a limiting part which can be twisted and deformed within a range angle, the limiting part is arranged in the rotating shaft in a penetrating mode, and two ends of the limiting part penetrate out of the rotating shaft and are fixedly arranged with the first rotating portion and the second rotating portion respectively.

2. The balance car turning mechanism of claim 1, wherein: the limiting piece is located on the central axis of the rotating shaft.

3. The balance car turning mechanism of claim 1, wherein: 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.

4. The balance car turning mechanism of claim 3, 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.

5. The balance car turning mechanism of any one of claims 1 to 4, characterized in that: first rotation portion includes first sleeve, second rotation portion includes the second sleeve, the both ends of pivot are located respectively first sleeve with in the second sleeve, the pivot is relative first sleeve with the second sleeve rotates.

6. The balance car turning mechanism of claim 5, wherein: the rotating shaft is of a cylindrical structure, and the outer diameter of the rotating shaft is matched with the inner diameters of the first sleeve and the second sleeve; a lubricating layer is arranged between the rotating shaft and the contact surfaces of the first sleeve and the second sleeve; and a washer or a snap spring is sleeved on the rotating shaft.

7. The balance car turning mechanism of claim 5, wherein: the first rotating part further comprises a first fixing part positioned on the vehicle body, and the second rotating part further comprises a second fixing part positioned on the vehicle body; the first sleeve is fixedly connected with the first fixing part, and the second sleeve is fixedly connected with the second fixing part; the two ends of the limiting part are respectively fixedly connected with the first fixing part and the second fixing part.

8. The balance car turning mechanism of claim 7, wherein: the first fixing part is provided with a first fixing seat used for installing the first sleeve, and the second fixing part is provided with a second fixing seat used for installing the second sleeve; the first fixing seat and the second fixing seat are respectively arranged at corresponding positions on the first fixing part and the second fixing part; the first sleeve and the second sleeve are both cylindrical with a longitudinal opening, and the first sleeve is in a state that the opening is shrunk and fixed in the first fixed seat; the second sleeve is provided with an opening which is shrunk and fixed in the second fixed seat.

9. The balance car turning mechanism of claim 8, 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; and/or, the first fixing part and the second fixing part are provided with rotating shaft baffles, and the rotating shaft baffles are respectively positioned on one side of the first fixing seat and one side of the second fixing seat.

10. An electrodynamic balance car, characterized by, including the vehicle body and the balance car slewing mechanism of any one of claims 1 to 9, the said first rotating part and the said second rotating part are connected with the said vehicle body fixedly or integrated with the said vehicle body separately; 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 first sleeve and the second sleeve are fixedly connected with the upper shell, a first fixed seat used for fixing the first sleeve and a second fixed seat used for fixing the second sleeve are arranged on the upper shell, and a fixed seat accommodating groove matched with the first fixed seat and the second fixed seat is arranged on the lower shell;

or, first sleeve and second sleeve with casing fixed connection down, be equipped with on the casing down and be used for fixing first telescopic first fixing base and be used for fixing the telescopic second fixing base of second, go up be equipped with on the casing with first fixing base with the fixing base holding tank of second fixing base looks adaptation.

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