A self-balancing scooter

Abstract

The present invention discloses a self-balancing scooter. The first vehicle body includes a first upper shell, a first lower shell and a first component group. The second vehicle body includes a second upper shell, a middle shell, a second lower shell and a second component group. The middle shell is disposed between the second upper shell and the second lower shell, and the middle shell makes the weights of the first vehicle body and the second vehicle body substantially balanced. The advantages are as follows: The stability of the overall structure of the self-balancing scooter of the present invention is improved, which is convenient for users to operate. Also, the structural strength of the second vehicle body is enhanced, avoiding affecting the service life of the self-balancing scooter.

Description

Technical Field

[0001] The present invention relates to the technical field of self-balancing scooters, and particularly to a self-balancing scooter. Background Art

[0002] The operation principle of an electric self-balancing scooter is mainly based on a basic principle called "dynamic stability". It uses gyroscopes and acceleration sensors inside the vehicle body to detect changes in the vehicle body posture, and uses a servo control system to drive the axles to make corresponding adjustments to maintain the balance of the system. It is a new type of green and environmentally friendly product for modern people to use as a means of transportation and for entertainment. Electric self-balancing scooters mainly include two types: single-wheel and two-wheel. Among them, the two-wheel self-balancing scooter has a higher safety factor and is more suitable for commuting. Generally, a two-wheel self-balancing scooter adopts a structure of left and right vehicle bodies. At the same time, both the left and right vehicle bodies include an upper cover and a lower cover, and most of the components inside the self-balancing scooter are fixed on the upper cover or the lower cover, resulting in insufficient strength of some structures; some two-wheel self-balancing scooters set most of the components in one vehicle body for convenient installation and control, thus causing the problem of one-sided heaviness of the two-wheel self-balancing scooter, making it difficult to achieve unified stability of the whole vehicle. Summary of the Invention

[0003] In order to overcome the deficiencies of the prior art, the purpose of the present invention is to provide a self-balancing scooter, which is beneficial to maintaining the balance of the vehicle body, has stronger stability of the whole vehicle, and is safer to use.

[0004] The purpose of the present invention is achieved by adopting the following technical solutions:

[0005] A self-balancing scooter includes a first vehicle body and a second vehicle body. The first vehicle body includes a first upper shell, a first lower shell, and a first component group. The second vehicle body includes a second upper shell, a middle shell, a second lower shell, and a second component group. The middle shell is arranged between the second upper shell and the second lower shell, and the middle shell makes the weights of the first vehicle body and the second vehicle body basically balanced.

[0006] Preferably, the first component group includes a battery assembly;

[0007] The battery assembly is arranged on the first upper shell, and battery positioning posts are arranged on the first upper shell. The battery assembly is fixed to the first upper shell through the battery positioning posts; or, the battery assembly is arranged on the first lower shell, and battery positioning posts are arranged on the first lower shell. The battery assembly is fixed to the first lower shell through the battery positioning posts.

[0008] Preferably, the battery positioning posts include battery pre-positioning posts and battery locking posts, and pre-positioning grooves and locking holes are correspondingly arranged on the outer wall of the battery assembly; and / or

[0009] The battery positioning posts include two groups, and the two groups of battery positioning posts are symmetrically arranged on the first upper shell or the first lower shell.

[0010] Preferably, the middle shell is connected to the second upper shell; and / or the middle shell is connected to the second lower shell.

[0011] Preferably, a first connection structure is provided on the middle shell, and a second connection structure is correspondingly provided on the second upper shell. The first connection structure and the second connection structure cooperate to connect the middle shell and the second upper shell. The first connection structure and the second connection structure are any combination of connection holes or connection posts; and / or

[0012] A third connection structure is provided on the middle shell, and a fourth connection structure is correspondingly provided on the second lower shell. The third connection structure and the fourth connection structure cooperate to connect the middle shell and the second lower shell. The third connection structure and the fourth connection structure are any combination of connection holes or connection posts.

[0013] Preferably, when the middle shell is connected to the second upper shell, there are two first connection structures, and the two first connection structures are symmetrically arranged on the middle shell, and / or the line connecting the two first connection structures is perpendicular to the horizontal line;

[0014] When the middle shell is connected to the second lower shell, there are two third connection structures, and the two third connection structures are symmetrically arranged on the middle shell, and / or the line connecting the two third connection structures is perpendicular to the horizontal line.

[0015] Preferably, a receiving portion is provided at the lower part of the second upper shell, the middle shell is placed in the receiving portion, and the lower surface of the receiving portion is in contact with the upper surface of the middle shell; or

[0016] A receiving portion is provided on the upper side of the second lower shell, and the middle shell is arranged in the receiving portion;

[0017] Or

[0018] A receiving portion is jointly formed by the lower side of the second upper shell and the upper side of the second lower shell, the middle shell is arranged in the receiving portion, and the upper surface of the middle shell is in contact with the lower surface of the second upper shell.

[0019] Preferably, the thickness of the middle shell is greater than the thickness of the second upper shell; and / or, middle shell reinforcing ribs are provided on the middle shell.

[0020] Preferably, a fifth connection structure is provided on the second upper shell, and a sixth connection structure is correspondingly provided on the second lower shell. The fifth connection structure and the sixth connection structure cooperate to connect the second upper shell and the second lower shell; the fifth connection structure and the sixth connection structure are any combination of connection holes or connection columns; and / or

[0021] A seventh connection structure is provided on the first upper shell, and an eighth connection structure is correspondingly provided on the first lower shell. The seventh connection structure and the eighth connection structure cooperate to connect the first upper shell and the first lower shell, and the seventh connection structure and the eighth connection structure are any combination of connection holes or connection columns.

[0022] Preferably, the upper surfaces of the second upper shell and the first upper shell are on the same horizontal plane.

[0023] Preferably, the first component group includes a first wheel, and the second component group includes a second wheel. The first wheel is provided on the outer end of the first upper shell away from the middle shell, and the second wheel is provided on the outer end of the middle shell away from the first upper shell.

[0024] Preferably, the second wheel includes a second axle. A first wheel baffle is provided on one side of the second upper shell close to the second wheel, and a second wheel baffle is provided on one side of the second lower shell close to the second wheel. The first wheel baffle and the second wheel baffle are correspondingly arranged to form a seal for the second axle. The outer end of the middle shell close to the second wheel is abutted against the first wheel baffle or the second wheel baffle to position the middle shell; and / or

[0025] The first wheel includes a first axle. A third wheel baffle is provided on one side of the first upper shell close to the first wheel, and a fourth wheel baffle is provided on one side of the first lower shell close to the first wheel. The third wheel baffle and the fourth wheel baffle are correspondingly arranged to form a seal for the first axle.

[0026] Preferably, the first component group further includes a first mudguard. The first mudguard is provided on the outer side of the first upper shell and above the first wheel. The first mudguard and the first upper shell are of an integral structure; and / or

[0027] The second component group further includes a second mudguard. The second mudguard is provided on the outer side of the second upper shell and above the second wheel. The second mudguard and the second upper shell are of an integral structure.

[0028] Preferably, the first component group includes a first pedal, and the second component group includes a second pedal. The first pedal is provided on the first upper shell, and the second pedal is provided on the second upper shell or the middle shell;

[0029] The structure of the first pedal is as follows: an integrated pedal, or composed of a pedal leather and a pedal pad;

[0030] The structure of the second pedal is as follows: an integrated pedal, or composed of a pedal leather and a pedal pad.

[0031] Preferably, a first pedal mounting hole is provided on the first upper shell, and the first pedal is arranged on the first upper shell through the first pedal mounting hole;

[0032] A first mounting hole for the second pedal is arranged on the second upper shell. The second pedal includes a movable connection fixing column, and the movable connection fixing column is in fit connection with the first mounting hole for the second pedal.

[0033] Preferably, corresponding to the position of the first mounting hole for the second pedal, a second mounting hole for the second pedal is arranged on the middle shell; the movable connection fixing column is in fit with the first mounting hole for the second pedal and the second mounting hole for the second pedal, so that the second pedal is movably fixed on the second upper shell.

[0034] Preferably, a through hole is arranged on the second upper shell, a second mounting hole for the second pedal is arranged on the middle shell, and the second pedal includes a movable connection fixing column; the movable connection fixing column passes through the through hole and is in fit with the second mounting hole for the second pedal, so that the second pedal is movably fixed on the middle shell.

[0035] Preferably, the second component group further includes a second photoelectric switch, and the second photoelectric switch is arranged on the lower side of the middle shell; the second pedal includes a contact, and a contact through hole is arranged on the middle shell; when the second pedal is arranged on the second upper shell, a contact hole is arranged on the second upper shell, and the contact is in fit with the second photoelectric switch through the contact hole and the contact through hole; when the second pedal is arranged on the middle shell, the contact is in fit with the second photoelectric switch through the contact through hole; a spring is arranged in the contact through hole, so that the second pedal can rebound.

[0036] Preferably, the second component group further includes a second photoelectric switch, and the second photoelectric switch is arranged on the second upper shell and is located below the second pedal; an installation groove for installing the second photoelectric switch is provided on the second upper shell, and the second photoelectric switch is placed in the installation groove; the second pedal includes a contact, and the contact is arranged corresponding to the second photoelectric switch; a movable installation hole is provided on the middle shell, a contact hole is provided on the second upper shell, the contact hole corresponds to the movable installation hole, the second pedal further includes a contact column, the contact column is adapted to the movable installation hole, and a spring is arranged in the movable installation hole, so that the second pedal can rebound.

[0037] Preferably, a second axle mounting seat is provided on the lower side of the middle shell, or a second axle mounting seat is provided on the lower side of the second upper shell, or a second axle mounting seat is provided on the second lower shell; the second axle mounting seat includes a second axle pressing plate fixing hole and a second axle mounting groove; the second axle pressing plate fixing hole includes two groups, and the two groups of second axle pressing plate fixing holes are symmetrically arranged on both sides of the second axle mounting groove; and / or

[0038] A first axle mounting seat is provided on the lower side of the first upper shell, or a first axle mounting seat is provided on the first lower shell; the first axle mounting seat includes a first axle pressing plate fixing hole and a first axle mounting groove; the first axle pressing plate fixing hole includes two groups, and the two groups of first axle pressing plate fixing holes are symmetrically arranged on both sides of the first axle mounting groove.

[0039] Preferably, a second control board connecting column is provided on the lower side of the middle shell, or a second control board connecting column is provided on the lower side of the second upper shell; the second control board connecting column includes two groups, and the two groups of second control board connecting columns are respectively located on both sides of the second axle mounting seat; and / or

[0040] A first control board connecting column is provided on the lower side of the first upper shell; the first control board connecting column includes two groups, and the two groups of first control board connecting columns are respectively arranged on both sides of the first axle mounting seat.

[0041] Preferably, the balance bike further includes a rotating mechanism, one end of the rotating mechanism is arranged in the first vehicle body, and the other end is arranged in the second vehicle body, so that the first vehicle body and the second vehicle body can rotate relative to each other.

[0042] Preferably, the first end of the rotating mechanism is fixedly arranged between the first upper shell and the first lower shell;

[0043] The second end of the rotating mechanism is rotatably arranged between the middle shell and the second lower shell, and a limiting mechanism is arranged on the middle shell and / or the second lower shell; or

[0044] The second end of the rotating mechanism is rotatably arranged in the middle shell, a cylindrical part is provided at the corresponding position of the middle shell, and the rotating mechanism can rotate in the cylindrical part; or

[0045] The second end of the rotating mechanism is rotatably arranged in the second lower shell, a cylindrical part is provided at the corresponding position of the second lower shell, and the rotating mechanism can rotate in the cylindrical part; or

[0046] The second end of the rotating mechanism is rotatably clamped between the second upper shell and the second lower shell, and a limiting mechanism is arranged on the second upper shell and / or the second lower shell.

[0047] Preferably, a first sleeve is arranged inside the cylindrical part, and the rotating mechanism can rotate inside the first sleeve.

[0048] Preferably, when the second end of the rotating mechanism is rotatably arranged between the middle shell and the second lower shell, a rotating upper connecting groove is arranged on the middle shell, a rotating lower connecting groove is arranged at the position corresponding to the rotating upper connecting groove on the second lower shell, and the rotating mechanism is rotatably arranged between the rotating upper connecting groove and the rotating lower connecting groove;

[0049] A limiting block mounting groove is arranged in the rotating lower connecting groove, and / or a limiting block mounting groove is arranged in the rotating upper connecting groove;

[0050] A lamp panel mounting post is arranged in the rotating upper connecting groove;

[0051] A first indicator light hole is arranged in the rotating upper connecting groove. At the position corresponding to the first indicator light hole, a second indicator light hole is arranged on the second upper shell, and at the position corresponding to the second indicator light hole, a lamp shade is arranged on the second upper shell.

[0052] Preferably, the scooter further includes a bearing; limiting grooves are arranged in the rotating upper connecting groove and the rotating lower connecting groove, and the bearing is arranged between the limiting grooves and rotates in cooperation with the rotating mechanism.

[0053] Preferably, the scooter further includes a second sleeve; a sleeve mounting groove is arranged in the rotating upper connecting groove, and the second sleeve is arranged in the sleeve mounting groove and rotates in cooperation with the rotating mechanism.

[0054] Preferably, a rotating mechanism upper fixing groove is arranged at one end of the first upper shell close to the second upper shell. Correspondingly, a rotating mechanism lower fixing groove is arranged at one end of the first lower shell close to the second lower shell, and the rotating mechanism is fixed between the rotating mechanism upper fixing groove and the rotating mechanism lower fixing groove; or

[0055] A rotating mechanism fixing post is arranged at one end of the first upper shell close to the second upper shell, and the rotating mechanism is fixed between the first upper shell and the first lower shell through the rotating mechanism fixing post.

[0056] Preferably, the second end of the rotating mechanism is rotatably arranged in the second vehicle body, and the first end is rotatably arranged in the first vehicle body; the rotating mechanism includes a rotating shaft, one end of the rotating shaft is connected to the first vehicle body, and the other end is connected to the second vehicle body; the rotating shaft rotates relative to the first vehicle body and the second vehicle body; a limiting part is arranged at one end of the rotating shaft, and a limiting mechanism is arranged at the position of the first vehicle body or the second vehicle body corresponding to the limiting part;

[0057] A rotating upper connection groove is provided on the first upper shell and the middle shell, and a rotating lower connection groove is provided at a position corresponding to the rotating upper connection groove on the first lower shell and the second lower shell. Bearings are sleeved at both ends of the rotating shaft, and corresponding bearing mounting grooves are provided on the rotating upper connection groove and the rotating lower connection groove; or

[0058] A rotating upper connection groove is provided on the first upper shell and the second upper shell, and a rotating lower connection groove is provided at a position corresponding to the rotating upper connection groove on the first lower shell and the second lower shell. Bearings are sleeved at both ends of the rotating shaft, and corresponding bearing mounting grooves are provided on the rotating upper connection groove and the rotating lower connection groove; or

[0059] A third sleeve is provided on the first upper shell or the first lower shell, and a first sleeve is provided on the second upper shell, the middle shell or the second lower shell. One end of the rotating shaft is rotatably arranged in the third sleeve, and the other end is rotatably arranged in the first sleeve.

[0060] Preferably, the first component group includes a first control board, and the second component group includes a second control board; the first control board is arranged between the first upper shell and the first lower shell; the second control board is arranged between the middle shell and the second lower shell; the first control board is fixedly connected to the first upper shell or the first lower shell; the second control board is fixedly connected to the second upper shell, the middle shell or the second lower shell.

[0061] Preferably, the second component group includes a speaker; a speaker mounting groove is arranged in the second lower shell, and the speaker is arranged in the speaker mounting groove.

[0062] Preferably, the scooter also includes a main switch, and a main switch mounting hole is arranged on the inner side of the second lower shell, and the main switch is arranged in the main switch mounting hole.

[0063] Preferably, the scooter also includes a handle; the handle is arranged at the connection of the first vehicle body and the second vehicle body; the handle includes a first part and a second part which are separately arranged, and the first part, the second part, the first vehicle body and the second vehicle body form a handle cavity.

[0064] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0065] The scooter of the present invention uses the middle shell to basically balance the weights of the first vehicle body and the second vehicle body, thereby improving the stability of the overall structure of the scooter, facilitating the user's operation, and also enhancing the structural strength of the second vehicle body, avoiding affecting the service life of the scooter. Description of the Drawings

[0066] Figure 1Explosion structure schematic diagram of a self-balancing scooter according to an embodiment of the present invention, which shows an implementation manner in which a middle shell is provided in the second vehicle body, an implementation manner in which a battery assembly is provided in the first vehicle body, and an implementation manner in which the second end of the rotating mechanism is located between the middle shell and the second lower shell;

[0067] Figure 2 For Figure 1 Another angle explosion structure schematic diagram of the self-balancing scooter in the embodiment;

[0068] Figure 3 For Figure 1 Cross-sectional structure schematic diagram of the self-balancing scooter in the embodiment, which shows an implementation manner in which the battery assembly is connected to the first upper shell;

[0069] Figure 4 For Figure 1 Another angle cross-sectional structure schematic diagram of the self-balancing scooter in the embodiment, which shows an implementation manner in which the second axle mounting seat is located on the middle shell, an implementation manner in which the second end of the rotating mechanism is located between the middle shell and the second lower shell, and an implementation manner in which the second pedal is provided on the second upper shell;

[0070] Figure 5 Explosion structure schematic diagram of a self-balancing scooter according to another embodiment of the present invention, showing an implementation manner in which the second end of the rotating mechanism is located in the cylindrical portion of the middle shell;

[0071] Figure 6 For Figure 5 Cross-sectional structure schematic diagram of the self-balancing scooter in the embodiment;

[0072] Figure 7 Explosion structure schematic diagram of a self-balancing scooter according to another embodiment of the present invention, showing an implementation manner in which the second end of the rotating mechanism is located in the cylindrical portion of the second lower shell;

[0073] Figure 8 For Figure 7 Cross-sectional structure schematic diagram of the self-balancing scooter in the embodiment;

[0074] Figure 9 Explosion structure schematic diagram of a self-balancing scooter according to another embodiment of the present invention, showing an implementation manner in which the second end of the rotating mechanism is located between the second upper shell and the second lower shell;

[0075] Figure 10 For Figure 9 Cross-sectional structure schematic diagram of the self-balancing scooter in, showing an implementation manner in which the second axle mounting seat is provided on the second upper shell;

[0076] Figure 11 Explosion structure schematic diagram of a self-balancing scooter according to another embodiment of the present invention, showing an implementation manner in which the second pedal is provided on the middle shell;

[0077] Figure 12 is Figure 11 a schematic cross-sectional structure diagram of the scooter in the middle embodiment;

[0078] Figure 13 is an exploded structure diagram of the scooter according to another embodiment of the present invention, which shows another implementation manner of the second axle mounting seat on the middle shell, and shows the implementation manner that the second end of the rotating mechanism is located between the middle shell and the second lower shell;

[0079] Figure 14 is Figure 13 a schematic cross-sectional structure diagram of the scooter in the middle embodiment, which shows the implementation manner that the contact through hole is arranged on the second upper shell;

[0080] Figure 15 is an exploded structure diagram of the scooter according to another embodiment of the present invention, which shows the implementation manner that the first end of the rotating mechanism is rotatably arranged in the first vehicle body and the second end is rotatably arranged in the second vehicle body;

[0081] Figure 16 is Figure 15 a schematic cross-sectional structure diagram of the scooter in the middle embodiment;

[0082] Figure 17 is an exploded structure diagram of the scooter according to another embodiment of the present invention, which shows the implementation manner that the photoelectric switch is arranged on the first upper shell, and also shows the implementation manner that the photoelectric switch is arranged on the middle shell when the second pedal is arranged on the middle shell;

[0083] Figure 18 is Figure 17 a schematic cross-sectional structure diagram of the scooter in the middle embodiment;

[0084] Figure 19 is an exploded structure diagram of the scooter according to another embodiment of the present invention, which shows the implementation manner that the photoelectric switch is arranged on the first upper shell, and also shows the implementation manner when the photoelectric switch is arranged on the second upper shell;

[0085] Figure 20 is Figure 19 a schematic cross-sectional structure diagram of the scooter in the middle embodiment;

[0086] Figure 21 is a schematic structure diagram of the middle shell according to an embodiment of the present invention, which shows the implementation manner that the contact through hole is arranged on the middle shell and the implementation manner that the second axle mounting seat is arranged on the middle shell;

[0087] Figure 22 is Figure 21 a schematic structure diagram of the middle shell in the middle embodiment from another angle, and also shows the structure of the middle shell when the second end of the rotating mechanism is located between the middle shell and the second lower shell;

[0088] Figure 23 This is a schematic structural view of the middle shell according to another embodiment of the present invention, which shows an implementation manner of arranging a cylindrical part on the middle shell;

[0089] Figure 24 For Figure 23 Another perspective structural view of the middle shell in the embodiment;

[0090] Figure 25 This is a schematic structural view of the middle shell according to another embodiment of the present invention, which shows the structure of the middle shell when the second end of the rotating mechanism is arranged between the second upper shell and the second lower shell, and also shows the structure of the middle shell when the second axle mounting seat is arranged on the second upper shell;

[0091] Figure 26 For Figure 25 Another perspective structural view of the middle shell in the embodiment;

[0092] Figure 27 This is a schematic structural view of the middle shell according to another embodiment of the present invention, showing another implementation manner in which the second axle mounting seat is located on the middle shell, and also showing the structure of the middle shell when the contact through hole is arranged on the second upper shell;

[0093] Figure 28 For Figure 27 Another perspective structural view of the middle shell in the embodiment;

[0094] Figure 29 This is a schematic structural view of the second upper shell according to an embodiment of the present invention, which shows an implementation manner of arranging a covering part on the second upper shell, and also shows an implementation manner of arranging a second pedal on the second upper shell;

[0095] Figure 30 This is a schematic structural view of the second upper shell according to another embodiment of the present invention, which shows an implementation manner of arranging an indicator board at a corresponding position on the second upper shell, and also shows the structure of the second upper shell when the second pedal is directly connected to the middle shell;

[0096] Figure 31 This is a schematic structural view of the second upper shell according to another embodiment of the present invention, which shows the structure of the second upper shell when the second end of the rotating mechanism is arranged between the second upper shell and the second lower shell, and also shows an implementation manner of arranging a second axle mounting seat on the second upper shell;

[0097] Figure 32 This is a schematic structural view of the second upper shell according to another embodiment of the present invention, which shows an implementation manner of arranging a covering part on the second upper shell, and also shows an implementation manner of arranging a contact through hole and a second control board connecting post on the second upper shell;

[0098] Figure 33Schematic diagram of the second lower shell according to an embodiment of the present invention, showing an embodiment in which a cylindrical portion is provided on the second lower shell;

[0099] Figure 34 Schematic diagram of the second lower shell according to another embodiment of the present invention, showing an embodiment in which the second end of the rotating mechanism is rotatably connected to the second lower shell, and also showing an embodiment in which the limiting mechanism is provided on the second lower shell;

[0100] Figure 35 Schematic diagram of the second upper shell according to another embodiment of the present invention, showing the structure of the second upper shell when the photoelectric switch is provided on the second upper shell;

[0101] Figure 36 For Figure 35 Schematic diagram of the second upper shell according to the embodiment in another angle;

[0102] Figure 37 Schematic diagram of the first upper shell according to an embodiment of the present invention, showing the structure of the first upper shell when the photoelectric switch is provided on the first upper shell;

[0103] Figure 38 Schematic diagram of the middle shell according to another embodiment of the present invention, showing the structure of the middle shell when the photoelectric switch is provided on the middle shell;

[0104] Figure 39 For Figure 38 Schematic diagram of the middle shell according to the embodiment in another angle.

[0105] In the figure, 1, the first vehicle body; 2, the second vehicle body; 3, the rotating mechanism; 31, the first end; 32, the second end; 33, the rotating shaft; 34, the limiting portion; 35, the bearing; 36, the limiting sleeve; 37, the limiting block; 38, the limiting block mounting groove; 39, the rotating mechanism fixing hole; 4, the first control board; 5, the second control board; 6, the first pedal; 61, the first movable column; 62, the first contact; 7, the second pedal; 71, the movable connection fixing column; 72, the second contact; 8, the handle.

[0106] 10, the first upper shell; 101, the seventh connection structure; 102, the first control board connection column; 103, the third wheel baffle; 104, the first mudguard; 105, the first pedal mounting hole; 106, the upper fixing groove of the rotating mechanism; 107, the rotating mechanism fixing column; 108, the first pedal mounting groove;

[0107] 20, the first lower shell; 201, the eighth connection structure; 202, the fourth wheel baffle; 203, the first axle groove; 204, the lower fixing groove of the rotating mechanism; 205, the bearing mounting groove;

[0108] 30. Second upper shell; 301. Second connection structure; 302. Accommodating part; 303. Fifth connection structure; 304. Second control board connection post; 305. First wheel fender; 306. Second mudguard; 307. First mounting hole for the second pedal; 308. Through hole; 309. Contact hole; 310. Covering part; 3101. Second indicator light hole; 3102. Lamp shade; 311. Second pedal mounting groove

[0109] 40. Second lower shell; 401. Fourth connection structure; 402. Sixth connection structure; 403. Second wheel fender; 404. Second axle groove; 405. Rotating lower connection groove; 406. First sleeve mounting groove; 4061. Limit sleeve groove; 407. Horn mounting groove; 408. Main switch mounting hole; 409. Horn

[0110] 50. Middle shell; 501. First connection structure; 502. Third connection structure; 503. First through groove; 504. Second through groove; 505. Second mounting hole for the second pedal; 506. First sleeve; 507. Rotating upper connection groove; 508. Indicator light board; 5081. Light board post; 5082. First indicator light hole; 509. Middle shell reinforcing rib

[0111] 60. Battery assembly; 601. Battery box; 602. Battery positioning post; 6021. Battery pre-positioning post; 6022. Battery locking post; 603. Pre-positioning groove; 604. Locking hole

[0112] 70. First wheel; 701. First axle; 702. First axle mounting seat; 703. First fixing hole for the axle pressing piece; 704. First axle mounting groove; 705. First axle pressing piece

[0113] 80. Second wheel; 801. Second axle; 802. Second axle mounting seat; 803. Second fixing hole for the axle pressing piece; 804. Second axle mounting groove; 805. Second axle pressing piece

[0114] 90. First photoelectric switch; 901. Second photoelectric switch; 902. Contact through hole; 903. Mounting groove; 9031. First wire passing hole; 9032. Second wire passing hole; 9033. Third wire passing hole; 904. Contact post Detailed implementation mode

[0115] The present invention will be described in more detail below with reference to the accompanying drawings. It should be noted that the description of the present invention with reference to the accompanying drawings below is illustrative rather than restrictive. Various different embodiments can be combined with each other to form other embodiments not shown in the following description.

[0116] In the description of the present invention, it should be noted that for orientation terms, such as the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the indicated orientation and positional relationship are based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of the present invention.

[0117] In addition, such terms as "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "several" is two or more, unless otherwise specifically defined.

[0118] In the present invention, unless otherwise clearly specified and defined, for the terms "assembled", "connected", and "joined", they should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may also be a mechanical connection; it may be directly connected, or connected through an intermediate medium, and it may be that the interiors of two elements are connected and communicate with each other. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0119] See the attached Figure 1 to the attached Figure 39 , the self-balancing scooter of the embodiment of the present invention will be clarified in the following description. Among them, the middle shell located in the second vehicle body solves the problem of poor overall vehicle stability in the prior art, making the weights of the first vehicle body and the second vehicle body basically balanced, the operation more stable, and the self-balancing scooter safer to drive.

[0120] As shown in the attached Figures 1 to 20 , the present invention designs a self-balancing scooter, including a first vehicle body 1 and a second vehicle body 2. The first vehicle body 1 includes a first upper shell 10, a first lower shell 20, and a first component group. The second vehicle body 2 includes a second upper shell 30, a middle shell 50, a second lower shell 40, and a second component group. The middle shell 50 is disposed between the second upper shell 30 and the second lower shell 40, and the middle shell 50 makes the weights of the first vehicle body 1 and the second vehicle body 2 basically balanced.

[0121] As shown in the attached Figures 1 to 20As shown, the first vehicle body 1 and the second vehicle body 2 are arranged opposite to each other. The first vehicle body 1 and the second vehicle body 2 can be relatively stationary or can rotate relative to each other through a rotating mechanism 3. The first vehicle body 1 can be the left vehicle body in a scooter, and correspondingly, the second vehicle body 2 is the right vehicle body in the scooter; in some embodiments, the first vehicle body 1 can be the right vehicle body in the scooter, and correspondingly, the second vehicle body 2 is the left vehicle body in the scooter. It should be noted that the positions of the first vehicle body 1 and the second vehicle body 2 have no substantial impact on their structures, and they can be used normally.

[0122] Since the weights of the first component group on the first vehicle body 1 and the second component group on the second vehicle body 2 are inconsistent, and the weights of the first upper shell 10 and the first lower shell 20, the second upper shell 30 and the second lower shell 40 are quite the same, the weights of the first vehicle body 1 and the second vehicle body 2 are also unbalanced, resulting in the imbalance of the entire vehicle body of the scooter and making it prone to the risk of tipping over during driving. Therefore, a middle shell 50 is provided in the second vehicle body 2 with a lighter mass, so that the weights of the first vehicle body 1 and the second vehicle body 2 are basically balanced, improving the stability of the entire vehicle body.

[0123] In some embodiments, the component with a larger weight in the scooter is the battery assembly 60. The first component group includes the battery assembly 60. The battery assembly 60 has a larger volume. The first vehicle body 1 is a double-layer structure with a larger installation space inside. The battery assembly 60 is arranged in the first vehicle body 1, below the first upper shell 10. The battery assembly 60 includes a battery box 601 and a battery. The battery is arranged in the battery box 601, and the battery box 601 is fixedly connected to the first upper shell 10 or the first lower shell 20.

[0124] More specifically, in the specific examples shown in the attached Figure 1 、the attached Figure 2 and the attached Figure 3 In the example shown, the battery box 601 is connected to the first upper shell 10. The first upper shell 10 is provided with battery positioning posts 602. The battery box 601 is connected to the first upper shell 10 through the battery positioning posts 602. The battery positioning posts 602 include battery pre-positioning posts 6021 and battery locking posts 6022. The battery locking posts 6022 are provided with screw holes corresponding to the locking holes 604. The outer wall of the battery assembly 60 is correspondingly provided with a pre-positioning groove 603 and a locking hole 604. During installation, the battery pre-positioning posts 6021 can be first inserted into the pre-positioning groove 603 on the outer wall of the battery box 601, and at the same time, the battery locking posts 6022 are aligned with the locking holes 604, and then the battery locking posts 6022 and the locking holes 604 are locked and fixed with screws, so as to realize the fixed connection between the battery box 601 and the battery positioning posts 602. As shown in the attached Figure 3As shown, the length of the battery and the positioning post is greater than the length of the battery locking post 6022. Preferably, to enhance the connection stability between the battery assembly 60 and the first upper shell 10, the battery positioning posts 602 include two groups, which are respectively arranged at positions corresponding to both sides of the battery box 601 on the lower surface of the first upper shell 10, as shown in the appendix Figure 2 and the appendix Figure 3 As shown, the battery positioning posts 602 are located on both sides of the battery box 601. Correspondingly, the pre-positioning grooves 603 and the locking holes 604 are also located on both sides of the battery box 601. To ensure the force balance of the battery assembly 60, the two groups of battery positioning posts 602 are symmetrically arranged. If a first pedal 6 is provided on the first upper shell 10 and the first pedal 6 is movably connected to the first upper shell 10 through the movable connection fixing post 71, then the battery positioning post 602 has a certain length and is greater than the length of the movable connection fixing post 71, so as to prevent the movable connection fixing post 71 from being blocked by the battery assembly 60 when the first pedal 6 moves relative to the first upper shell 10, affecting the normal movement of the first pedal 6.

[0125] In another embodiment, the battery assembly 60 is arranged on the first lower shell 20. The first lower shell 20 is provided with battery positioning posts 602, and the battery assembly 60 is fixed to the first lower shell 20 through the battery positioning posts 602. The battery positioning posts 602 include battery pre-positioning posts 6021 and battery locking posts 6022. The battery locking posts 6022 are provided with screw holes corresponding to the locking holes 604. The outer wall of the battery assembly 60 is correspondingly provided with pre-positioning grooves 603 and locking holes 604. During installation, align the pre-positioning groove 603 with the battery pre-positioning post 6021, lower the battery box 601, and insert the battery pre-positioning post 6021 into the pre-positioning groove 603 on the outer wall of the battery box 601. At this time, the battery locking post 6022 corresponds to the locking hole 604, and then use screws to lock and fix the battery locking post 6022 and the locking hole 604, thereby realizing the fixed connection between the battery box 601 and the battery positioning posts 602. The length of the battery and the positioning post is greater than the length of the battery locking post 6022. Preferably, to enhance the connection stability between the battery assembly 60 and the first upper shell 10, the battery positioning posts 602 include two groups, which are respectively arranged at positions corresponding to both sides of the battery box 601 on the lower surface of the first upper shell 10. The battery positioning posts 602 are located on both sides of the battery box 601. Correspondingly, the pre-positioning grooves 603 and the locking holes 604 are also located on both sides of the battery box 601. To ensure the force balance of the battery assembly 60, the two groups of battery positioning posts 602 are symmetrically arranged.

[0126] In some other embodiments, battery positioning posts 602 are provided on both the first upper shell 10 and the first lower shell 20. The battery assembly 60 is simultaneously connected and fixed to both the first upper shell 10 and the first lower shell 20 to obtain a more stable installation effect. The specific structure of the battery positioning posts 602 and the connection manner with the battery box 601 can be as described in the above embodiments. Additionally, to ensure the force balance of the battery assembly 60, the number of the battery positioning posts 602 can be four groups, and the two groups located on the first upper shell 10 are symmetrically arranged with each other, and the two groups located on the first lower shell 20 are symmetrically arranged with each other. The battery positioning posts 602 on the first upper shell 10 can be correspondingly arranged with the battery positioning posts 602 on the first lower shell 20, or can be arranged in a staggered manner. If a first pedal 6 is provided on the first upper shell 10 and the first pedal 6 is movable relative to the first upper shell 10 through a movable connection fixing post 71, then, the battery positioning posts 602 have a certain length and are longer than the length of the movable connection fixing post 71 to prevent the movable connection fixing post 71 from being blocked by the battery assembly 60 when the first pedal 6 moves relative to the first upper shell 10, which affects the normal movement of the first pedal 6.

[0127] A middle shell 50 is provided in the second vehicle body 2. It has a three-layer structure, with a smaller installation space, but higher structural strength and better load-bearing effect. The installation and fixation of the middle shell 50 are relatively important for the stability of the second vehicle body 2 and the entire balance scooter. The middle shell 50 can be connected to the second upper shell 30 alone, or can be connected to the second lower shell 40 alone, or can be connected to both the second upper shell 30 and the second lower shell 40 simultaneously.

[0128] In some embodiments, as shown in Figure 1 and Figure 2 shown, a first connection structure 501 is provided on the middle shell 50, and a second connection structure 301 is correspondingly provided on the second upper shell 30. The cooperation of the first connection structure 501 and the second connection structure 301 enables the middle shell 50 to be connected to the second upper shell 30. The first connection structure 501 and the second connection structure 301 are any combination of connection holes or connection posts. More specifically, in the specific examples shown in Figure 21 and Figure 29 shown, the first connection structure 501 is a connection hole, and the second connection structure 301 is a connection post. The connection hole and the connection post are correspondingly arranged, and a screw passes through the connection hole and is threadedly connected to the connection post to fixedly connect the middle shell 50 to the second upper shell 30.

[0129] As shown in Figure 21 and Figure 29As shown, when the middle shell 50 is connected to the second upper shell 30, there are two first connection structures 501, making the connection between the middle shell 50 and the second upper shell 30 more firm. Preferably, to make the middle shell 50 have a balanced force during installation, the two first connection structures 501 are symmetrically arranged on the middle shell 50, that is, the two first connection structures 501 are centrosymmetric about the central horizontal axis of the middle shell 50. Or rather, the connection line of the two first connection structures 501 can be perpendicular to the horizontal line, and this horizontal line refers to the horizontal horizontal line in the direction in the attached Figure 3 and the attached Figure 4 . More specifically, the two first connection structures 501 are located on both sides of the middle shell 50. As shown in the attached Figure 21 , the two connection holes are located on both sides of the middle shell 50.

[0130] In some other embodiments, a third connection structure 502 is provided on the middle shell 50, and a corresponding fourth connection structure 401 is provided on the second lower shell 40. The cooperation of the third connection structure 502 and the fourth connection structure 401 enables the connection between the middle shell 50 and the second lower shell 40, and the third connection structure 502 and the fourth connection structure 401 are any combination of connection holes or connection columns. More specifically, in the specific examples shown in the attached Figure 22 and the attached Figure 34 , the third connection structure 502 is a connection column, the fourth connection structure 401 is a connection column, and at least one of the third connection structure 502 and the fourth connection structure 401 is a through connection column. The connection columns on the middle shell 50 and the connection columns on the second lower shell 40 are correspondingly arranged, and screw holes are provided thereon. Screws pass through the through connection columns and are threadedly connected to the connection columns, so that the middle shell 50 and the second lower shell 40 are fixedly connected.

[0131] As shown in the attached Figure 22 and the attached Figure 34 , when the middle shell 50 is connected to the second lower shell 40, there are two third connection structures 502, making the connection between the middle shell 50 and the second lower shell 40 more firm. Preferably, to make the middle shell 50 have a balanced force during installation, the two third connection structures 502 are symmetrically arranged on the middle shell 50, that is, the two third connection structures 502 are centrosymmetric about the central horizontal axis of the middle shell 50. In some embodiments, the connection line of the two third connection structures 502 is perpendicular to the horizontal line, and this horizontal line refers to the horizontal horizontal line in the direction in the attached drawings. More specifically, the two third connection structures 502 are located on both sides of the middle shell 50. As shown in the attached Figure 22 , the two connection columns are located on both sides of the middle shell 50.

[0132] In some embodiments, to reduce the volume of the second vehicle body 2 and make the installation of the middle shell 50 more stable, a receiving portion 302 for receiving the middle shell 50 is provided inside the second vehicle body 2, and the middle shell 50 is partially or entirely located in the receiving portion 302. More specifically, in one embodiment, as shown in the attached Figure 4 and the attached Figure 29As shown in the figure, a receiving portion 302 is provided on the lower side of the second upper shell 30. The receiving portion 302 is a groove structure. The upper part of the middle shell 50 is located in the receiving portion 302, or the entire middle shell 50 is located in the receiving portion 302. At this time, the lower surface of the receiving groove can be set to abut against the upper surface of the middle shell 50, so that the force received by the second upper shell 30 can act on the middle shell 50, preventing the second upper shell 30 from being damaged due to exceeding the load-bearing range, improving the mechanical strength of the scooter, and ensuring the service life of the scooter.

[0133] In another embodiment, a receiving portion 302 is provided on the upper side of the second lower shell 40. The receiving portion 302 is a groove structure. The lower part of the middle shell 50 is located in the receiving portion 302, or the entire middle shell 50 is located in the receiving portion 302. At this time, the lower surface of the second upper shell 30 can be set to abut against the upper surface of the middle shell 50, so that the force received by the second upper shell 30 can act on the middle shell 50, preventing the second upper shell 30 from being damaged due to exceeding the load-bearing range, improving the mechanical strength of the scooter, and ensuring the service life of the scooter.

[0134] In another embodiment, the receiving portion 302 is jointly formed by the lower side of the second upper shell 30 and the upper side of the second lower shell 40. The receiving portion 302 is a cavity structure. The entire middle shell 50 is located in the receiving portion 302. At this time, the lower surface of the second upper shell 30 can be set to abut against the upper surface of the middle shell 50, so that the force received by the second upper shell 30 can act on the middle shell 50, preventing the second upper shell 30 from being damaged due to exceeding the load-bearing range, improving the mechanical strength of the scooter, and ensuring the service life of the scooter.

[0135] Based on the above several embodiments, preferably, the thickness of the middle shell 50 is greater than the thickness of the second upper shell 30. The middle shell 50 has higher mechanical strength, and at the same time, the mechanical strength of the second upper shell 30 can be improved. When there is a rotating mechanism 3 between the first vehicle body 1 and the second vehicle body 2, the rotating mechanism 3 is connected to the middle shell 50, which can make the installation of the rotating mechanism 3 more stable, enhance the connection between the first vehicle body 1 and the second vehicle body 2, so that the rotation between the first vehicle body 1 and the second vehicle body 2 is more stable, and the stability of the entire scooter vehicle body is improved. Preferably, middle shell reinforcing ribs 509 can also be provided on the middle shell to further enhance the structural strength of the middle shell.

[0136] Based on the above embodiments, preferably, in order to make the appearance of the scooter more beautiful, the first upper shell 10 and the second upper shell 30 are flush, and the upper surfaces of the second upper shell 30 and the first upper shell 10 are on the same horizontal plane, enabling users to stand steadily on the first vehicle body 1 and the second vehicle body 2 for operation.

[0137] In some embodiments, the first upper shell 10 is fixedly connected to the first lower shell 20 to form a first accommodation cavity. More specifically, a seventh connection structure 101 is provided on the first upper shell 10, and a corresponding eighth connection structure 201 is provided on the first lower shell 20. The seventh connection structure 101 and the eighth connection structure 201 cooperate to connect the first upper shell 10 and the first lower shell 20. The seventh connection structure 101 and the eighth connection structure 201 are any combination of connection holes or connection posts. In the attached Figure 1 and the attached Figure 2 In the specific example shown, the seventh connection structure 101 is a connection post with a connection hole provided thereon, and the eighth connection structure 201 is a connection post with a through connection hole provided therein. During installation, align the seventh connection structure 101 and the eighth connection structure 201, pass a screw through the connection hole on the first lower shell 20 and into the connection post on the first upper shell 10 to connect and fix the two connection posts, so as to connect and fix the first upper shell 10 and the first lower shell 20.

[0138] In some embodiments, the second upper shell 30 can be directly connected to the second lower shell 40, or can be connected to the second lower shell 40 through the middle shell 50. More specifically, a fifth connection structure 303 is provided on the second upper shell 30, and a corresponding sixth connection structure 402 is provided on the second lower shell 40. The fifth connection structure 303 and the sixth connection structure 402 cooperate to connect the second upper shell 30 and the second lower shell 40; the fifth connection structure 303 and the sixth connection structure 402 are any combination of connection holes or connection posts. In the attached Figure 1 and the attached Figure 2 In the specific example shown, the fifth connection structure 303 is a connection post with a connection hole provided therein, and the sixth connection structure 402 is a connection post with a connection hole provided therein. The connection posts are used to connect the second upper shell 30 and the second lower shell 40. In some embodiments, the second upper shell 30 and the second lower shell 40 are respectively connected to the middle shell 50, thereby constituting the entire second vehicle body 2. In other embodiments, the second upper shell 30 is not only connected to the middle shell 50, but also directly connected to the second lower shell 40 through the fifth connection structure, so that the overall structure of the second vehicle body 2 is more stable, has a higher load-bearing capacity, and the operation of the scooter is safer.

[0139] The first vehicle body 1 includes a first wheel 70, and the second vehicle body 2 includes a second wheel 80. There are various ways to specifically install the second wheel 80, and several of them will be briefly described by way of example below.

[0140] Regarding the installation position of the first wheel 70, in some embodiments, the first component group includes the first wheel 70, which is arranged on the outer side end of the first upper shell 10 away from the middle shell 50, and the second component group includes the second wheel 80, which is arranged on the outer side end of the middle shell 50 away from the first upper shell 10. More specifically, the first wheel 70 includes a first axle 701, and a first axle mounting seat 702 is provided on the first upper shell 10. The first axle mounting seat 702 includes a first axle pressing plate fixing hole 703 and a first axle mounting groove 704; the first axle mounting groove 704 is adapted to the first axle, and the first axle is placed in the first axle mounting groove. The first axle pressing plate fixing hole 703 includes two groups, and the two groups of first axle pressing plate fixing holes 703 are symmetrically arranged on both sides of the first axle mounting groove 704. The first axle mounting seat 702 is also provided with a first axle pressing plate 705, and the first axle is fixed in the first axle mounting groove through the first axle pressing plate 705; the first axle pressing plate 705 is fixedly connected to the first axle mounting seat 702 by screws to ensure that the first axle will not be separated from the first axle mounting groove.

[0141] Regarding the installation position of the first wheel 70, in other embodiments, the first component group includes the first wheel 70, which is arranged on the outer end of the first lower shell 20 away from the middle shell 50. More specifically, the first wheel 70 includes a first axle 701, and a first axle mounting seat 702 is provided on the first lower shell 20. The first axle mounting seat 702 includes a first axle pressing plate fixing hole 703 and a first axle mounting groove 704; the first axle mounting groove 704 is adapted to the first axle, and the first axle is placed in the first axle mounting groove. The first axle pressing plate fixing hole 703 includes two groups, and the two groups of first axle pressing plate fixing holes 703 are symmetrically arranged on both sides of the first axle mounting groove 704. The first axle mounting seat 702 is also provided with a first axle pressing plate 705, and the first axle is fixed in the first axle mounting groove through the first axle pressing plate 705; the first axle pressing plate 705 is fixedly connected to the first axle mounting seat 702 by screws to ensure that the first axle will not be separated from the first axle mounting groove.

[0142] Based on the above embodiment, preferably, the first component group includes a first control board 4. To protect the first control board 4, the first control board 4 is located between the first upper shell 10 and the first lower shell 20. The first upper shell 10 or the first lower shell 20 is provided with a first control board connecting column 102. The first control board 4 is fixedly connected to the first upper shell 10 or the first lower shell 20 through the first control board connecting column 102. To make the installation of the first control board 4 more secure, the first control board connecting column 102 includes two groups. The two groups of first control board connecting columns 102 are respectively arranged on both sides of the first axle mounting seat 702, so that the first control board 4 does not interfere with the first axle mounting seat 702. The two groups of first control board connecting columns have different spacings, which can be used to install first control boards of different sizes.

[0143] Regarding the installation position of the second wheel 80, in some embodiments, the second wheel 80 includes a second axle 801, a second axle mounting seat 802 is provided on the middle shell 50, and the second axle mounting seat 802 includes a second axle pressing plate fixing hole 803 and a second axle mounting groove 804; the second axle mounting groove 804 is adapted to the second axle, and the second axle is placed in the second axle mounting groove, and the second axle pressing plate fixing hole 803 includes two groups, and the two groups of second axle pressing plate fixing holes 803 are symmetrically arranged on both sides of the second axle mounting groove 804. The second axle mounting seat 802 is also provided with a second axle pressing plate 805, and the second axle is fixed in the second axle mounting groove through the second axle pressing plate 805; the second axle pressing plate 805 is fixedly connected to the second axle mounting seat 802 by screws to ensure that the second axle will not be separated from the second axle mounting groove. In combination with the above embodiment, preferably, the thickness of the middle shell 50 is greater than the thickness of the second upper shell 30; since the thickness of the middle shell 50 is thicker, the mechanical strength is greater, therefore, in the attached Figure 21 To Attachment Figure 24 And attached Figure 28 In the specific example shown, the second axle mounting seat is arranged at the bottom of the middle shell 50, so that the second axle is installed more firmly and the second wheel can drive the second vehicle body 2 to run more stably.

[0144] Regarding the installation position of the second wheel 80, in other embodiments, as shown in the attached Figure 9 and attached Figure 10 As shown, the second wheel 80 includes a second axle 801, and a second axle mounting seat 802 is provided on the second upper shell 30. The second axle mounting seat 802 includes a second axle pressing plate fixing hole 803 and a second axle mounting groove 804; the second axle mounting groove 804 is adapted to the second axle, and the second axle is placed in the second axle mounting groove. The second axle pressing plate fixing holes 803 include two groups, and the two groups of second axle pressing plate fixing holes 803 are symmetrically arranged on both sides of the second axle mounting groove 804. The second axle mounting seat 802 is also provided with a second axle pressing plate 805, and the second axle is fixed in the second axle mounting groove through the second axle pressing plate 805; the second axle pressing plate 805 is fixedly connected to the second axle mounting seat 802 by screws to ensure that the second axle will not be separated from the second axle mounting groove.

[0145] Since the middle shell 50 is disposed below the second upper shell 30, the second axle mounting seat 802 disposed on the lower surface of the second upper shell 30 is likely to interfere with the middle shell 50. Therefore, based on this embodiment, preferably, as shown in the attached Figure 25 and attached Figure 26As shown, the middle shell 50 is provided with a first through slot 503, and the second axle mounting seat 802 passes through the first through slot 503 and is located below the middle shell 50 to avoid interference with the middle shell 50. At this time, the second axle is also located below the middle shell 50, and the second axle mounting seat 802 fixes the second axle in the second axle mounting slot 804 through the second axle pressing sheet 805. The second axle mounting seat 802 is arranged on the second upper shell 30. Compared with the existing upper shell structure, only the second control board connecting column and the second contact through hole on the second upper shell 30 are eliminated, which simplifies the production process, avoids waste, and facilitates the installation of the second upper shell 30 and the second axle. Preferably, the first through slot 503 on the middle shell 50 has an opening facing the second wheel, so that the second upper shell 30 and the second axle can be installed first, and then the second axle mounting seat 802 is directly passed through the first through slot 503, which is simpler and more convenient to install. At the same time, the second axle mounting seat 802 and the second upper shell 30 are equivalent to limiting the left and right positions of the middle shell 50, so that the middle shell 50 is more tightly connected to the second shell, and the mechanical strength of the second body 2 is better and more stable.

[0146] Regarding the installation position of the second wheel 80, in other embodiments, the second wheel 80 includes a second axle 801, a second axle mounting seat 802 is provided on the second lower shell 40, and the second axle mounting seat 802 includes a second axle pressing plate fixing hole 803 and a second axle mounting groove 804; the second axle mounting groove 804 is adapted to the second axle, and the second axle is placed in the second axle mounting groove, and the second axle pressing plate fixing hole 803 includes two groups, and the two groups of second axle pressing plate fixing holes 803 are symmetrically arranged on both sides of the second axle mounting groove 804. The second axle mounting seat 802 is also provided with a second axle pressing plate 805, and the second axle is fixed in the second axle mounting groove through the second axle pressing plate 805; the second axle pressing plate 805 is fixedly connected to the second axle mounting seat 802 by screws to ensure that the second axle will not be separated from the second axle mounting groove.

[0147] Based on the above embodiments, preferably, the second component group includes a second control board 5. To protect the second control board 5, the second control board 5 is located between the middle shell 50 and the second lower shell 40. A second control board connecting column 304 is provided on the lower side of the middle shell 50 or the second lower shell 40. The second control board 5 is fixedly connected to the middle shell 50 or the second lower shell 40 through the second control board connecting column 304. To make the installation of the second control board 5 more secure, the second control board connecting column 304 includes two groups. The two groups of second control board connecting columns 304 are respectively arranged on both sides of the second axle mounting seat 802, so that the second control board 5 does not interfere with the second axle mounting seat 802. When the middle shell 50 is provided with a first through slot 503, the two groups of second control board connecting columns 304 are respectively located on both sides of the first through slot 503.

[0148] In addition to being arranged at the above-mentioned positions, in some embodiments, the second control board connecting column 304 is arranged on the lower side of the second upper shell 30. More specifically, the second component group includes a second control board 5, the second control board 5 is arranged below the middle shell 50, a second through groove 504 is provided on the middle shell 50, a second control board connecting column 304 is provided on the second upper shell 30, and the second control board connecting column 304 passes through the second through groove 504 and is connected to the second control board 5. Such a method can simplify the structure of the middle shell 50, make the installation of the second upper shell 30 and the middle shell 50 more convenient, and there will be no assembly error; and through the second control board connecting column 304, the connection between the second upper shell 30 and the middle shell 50 is closer, which is beneficial to improving the mechanical strength of the second vehicle body 2, thereby enhancing the stability of the entire balance vehicle; at the same time, the second control board connecting column can also play a role in limiting the middle shell. To make the installation of the second control board 5 more firm, the second control board connecting column 304 includes two groups, and the two groups of second control board connecting columns 304 are respectively arranged on both sides of the second axle mounting seat 802, so that the second control board 5 does not interfere with the second axle mounting seat 802. At this time, the second axle mounting seat 802 is located on the lower side of the middle shell 50, the second through groove 504 corresponds to the second control board connecting column 304, and the number is also two, and the two second through grooves 504 are respectively located on both sides of the second axle mounting seat 802, so that the second control board connecting column 304 is located on both sides of the second axle mounting seat 802 after passing through the second through groove 504.

[0149] In actual application, the installation positions of the first wheel 70 and the second wheel 80 can be combined with each other. For example, when the first wheel 70 is connected to the first upper shell 10, the second wheel 80 can be connected to the second upper shell 30, or to the middle shell 50, or to the second lower shell 40; when the first wheel 70 is connected to the first lower shell 20, the second wheel 80 can be connected to the second upper shell 30, or to the middle shell 50, or to the second lower shell 40. The axes of the first axle 701 of the first wheel 70 and the second axle 801 of the second wheel 80 coincide to ensure that the two wheels rotate concentrically and the operation of the balance vehicle is more stable.

[0150] When the first wheel and the second wheel rotate, they are likely to pick up sundries or water. If the sundries or water enter the first vehicle body 1 or the second vehicle body 2, it is easy to damage the electronic components inside the first vehicle body 1 and the second vehicle body 2, affecting the normal operation of the balance bike and posing a safety hazard. Based on the above embodiments, the first wheel is mainly connected to the first vehicle body 1 by the first axle, and the second wheel is mainly connected to the second vehicle body 2 by the second axle. Therefore, it is necessary to do a good job in the sealing of the first axle and the second axle. Taking the connection between the second axle and the second vehicle body 2 as an example, on the side of the second upper shell 30 close to the second wheel, there is a first wheel baffle 305, and on the side of the second lower shell 40 close to the second wheel, there is a second wheel baffle 403. The first wheel baffle 305 and the second wheel baffle 403 are correspondingly arranged to form an axle seal, that is, the seal of the second axle. More specifically, the first wheel baffle 305 and the second wheel baffle 403 abut against each other after the second upper shell 30 and the second lower shell 40 are installed and closed, leaving only a second axle hole for the second axle to pass through and rotate. The second axle hole can be set on the first wheel baffle 305 or on the second wheel baffle 403. As shown in the specific example attached Figure 1 In the specific example shown, the second axle groove 404 is provided on the upper edge of the second wheel baffle 403. After the first wheel baffle 305 abuts against the second wheel baffle 403, a complete second axle hole is formed, and the shape of the second axle hole is adapted to the second axle.

[0151] The axle seal between the first wheel and the first vehicle body 1 can adopt the same sealing method or other conventional sealing structures. More specifically, the first wheel 70 includes a first axle 701. On the side of the first upper shell 10 close to the first wheel 70, there is a third wheel baffle 103, and on the side of the first lower shell 20 close to the first wheel 70, there is a fourth wheel baffle 202. The third wheel baffle 103 and the fourth wheel baffle 202 are correspondingly arranged to form a seal for the first axle 701. The third wheel baffle 103 and the fourth wheel baffle 202 abut against each other after the first upper shell 10 and the first lower shell 20 are installed and closed, leaving only a first axle hole for the first axle to pass through and rotate. The first axle hole can be set on the first wheel baffle 305 or on the second wheel baffle 403. The first axle hole can be formed by the first axle groove 203 and the third wheel baffle 103 or the first axle groove 203 and the fourth wheel baffle 202. More specifically, as shown in the specific example attached Figure 1 In the specific example shown, the first axle groove 203 is provided on the upper edge of the third wheel baffle 103. After the third wheel baffle 103 abuts against the fourth wheel baffle 202, a complete first axle hole is formed, and the shape of the first axle hole is adapted to the first axle.

[0152] In some embodiments, to better position the middle housing 50, one end of the middle housing 50 abuts against the first wheel fender 305 to position the middle housing 50 and limit the middle housing 50. More specifically, the surface of the middle housing 50 close to the first wheel fender 305 is a flat surface, which abuts against the inner wall of the first wheel fender 305, and the second axle mounting seat 802 on the middle housing 50 corresponds to the second axle hole, and the second axle mounting groove is concentric with the second axle hole. Preferably, the first wheel fender 305 is provided with reinforcing ribs to strengthen the mechanical strength of the first wheel fender 305, and the flat surface on the middle housing 50 abuts against the reinforcing ribs.

[0153] Preferably, in some embodiments, mudguards are provided on the first vehicle body 1 and the second vehicle body 2. The mudguards are respectively arranged corresponding to the first wheel and the second wheel to prevent the first wheel and the second wheel from splashing sewage or stains during driving, which affects the user experience. More specifically, the first component group further includes a first mudguard 104. The first mudguard 104 is arranged outside the first upper housing 10 and above the first wheel 70. The first mudguard 104 and the first upper housing 10 are of an integral structure; the second component group further includes a second mudguard 306. The second mudguard 306 is arranged outside the second upper housing 30 and above the second wheel 80. The second mudguard 306 and the second upper housing 30 are of an integral structure. In some embodiments, mudguards are provided on both the first vehicle body 1 and the second vehicle body 2 to improve the user experience.

[0154] To facilitate the user's stepping, the first component group includes a first pedal 6, and the second component group includes a second pedal 7. As shown in the attached drawings, the first pedal 6 is arranged on the first upper housing 10, and the second pedal 7 is arranged on the second upper housing 30 or the middle housing 50. Regarding the specific structures of the first pedal 6 and the second pedal 7: the first pedal 6 is an integral pedal, which is convenient for processing and installation, or includes a tread and a tread pad to enhance the stepping touch; the second pedal 7 is an integral pedal, which is convenient for processing and installation, or includes a tread and a tread pad to enhance the stepping touch.

[0155] To facilitate the control of the first vehicle body 1 and the second vehicle body 2, one or both of the first pedal 6 and the second pedal 7 can move relative to the first vehicle body 1 and the second vehicle body 2, thereby triggering the photoelectric switch and enabling the balance bike to start working. More specifically, in some embodiments, the first pedal 6 is movably arranged on the first upper shell 10, and a first photoelectric switch 90 is provided below the first pedal 6. After the first pedal 6 bears weight and moves downward, it triggers the first photoelectric switch 90, and the first control board 4 controls the operation of the first vehicle body 1. At this time, the first photoelectric switch 90 can be directly arranged on the first control board 4 or independently arranged on the first upper shell 10, and its specific arrangement method will be described in the following embodiments. In other embodiments, the second pedal 7 is movably arranged on the second upper shell 30, and a second photoelectric switch 901 is provided below the second pedal 7. After the second pedal 7 bears weight and moves downward, it triggers the second photoelectric switch 901, and the second control board 5 controls the operation of the second vehicle body 2. At this time, the second photoelectric switch 901 can be directly arranged on the second control board 5 or independently arranged on the second upper shell 30, and its specific arrangement method will be described in the following embodiments. Of course, in some embodiments, both the first pedal 6 and the second pedal 7 can be movable to control the balance bike simultaneously, and the above embodiments can be combined.

[0156] For the embodiment in which the first pedal 6 is movably arranged on the first upper shell 10, more specifically, a first pedal mounting groove 108 is provided on the first upper shell for placing the first pedal. At the same time, a first pedal mounting hole 105 is provided on the first upper shell 10, and the first pedal mounting hole is located in the first pedal mounting groove 108. The first pedal 6 is arranged on the first upper shell 10 through the first pedal mounting hole 105; a first movable column 61 is provided on the lower surface of the first pedal 6. After the first movable column 61 passes through the first pedal mounting hole 105, it is movably clamped with the lower surface of the first upper shell 10 to prevent the first pedal 6 from detaching from the first upper shell 10, and the length of the first movable column 61 is greater than the thickness of the first pedal mounting hole 105, so that the first movable column 61 can shuttle in the first pedal mounting hole 105, thereby enabling the first pedal 6 to move up and down relative to the first upper shell 10.

[0157] Preferably, the first movable column 61 includes a guiding portion and a clamping portion. The guiding portion is adapted to the first pedal mounting hole 105 and can move up and down in the first pedal mounting hole 105, and the clamping portion is used for movably clamping with the lower surface of the first upper shell 10. There are various structures for the guiding portion and the clamping portion. The length of the guiding portion determines the moving range of the first pedal 6 relative to the first upper shell 10. More specifically, the moving range of the first pedal 6 can be limited to 1 mm to 10 mm.

[0158] For the embodiment in which the second pedal 7 is movably arranged on the second upper shell 30, since a middle shell 50 is provided in the second vehicle body 2, there are various ways to install the second pedal 7.

[0159] In one embodiment, a second pedal mounting groove 311 is provided on the second upper shell for placing the second pedal. At the same time, a first mounting hole 307 for the second pedal is provided on the second upper shell 30, and the first mounting hole 307 for the second pedal is located in the second pedal mounting groove 311. The second pedal 7 includes a movable connection fixing post 71, and the movable connection fixing post 71 is cooperatively connected with the first mounting hole 307 for the second pedal. Corresponding to the position of the first mounting hole 307 for the second pedal, a second mounting hole 505 for the second pedal is provided on the middle shell 50; the movable connection fixing post 71 cooperates with the first mounting hole 307 for the second pedal and the second mounting hole 505 for the second pedal, so that the second pedal 7 is movably fixed on the second upper shell 30. Preferably, the movable connection fixing post 71 includes a guiding portion and a clamping portion. The guiding portion is adapted to the first mounting hole 307 for the second pedal and the second mounting hole 505 for the second pedal and can move up and down in the first mounting hole 307 for the second pedal and the second mounting hole 505 for the second pedal. The clamping portion is used for movably clamping with the lower surface of the middle shell 50. There are various structures for the guiding portion and the clamping portion. The length of the guiding portion determines the moving range of the second pedal 7 relative to the second upper shell 30. More specifically, the moving range of the second pedal 7 can be limited to 1 mm to 10 mm.

[0160] In another embodiment, the second pedal 7 is provided on the middle shell. A through hole 308 is provided at the position of the second upper shell 30 corresponding to the second pedal 7. The second pedal 7 passes through the through hole 308 and is connected to the middle shell 50. The provision of the through hole 308 on the second upper shell 30 not only enables the second pedal 7 to be directly connected to the middle shell 50, making the assembly process simpler; but also saves the material of the second upper shell 30, reducing the cost; and enables the weight of the human body to act directly on the middle shell without passing through the second upper shell. More specifically, a second mounting hole 505 for the second pedal is provided on the middle shell 50, and the second pedal 7 includes a movable connection fixing post 71; the movable connection fixing post 71 passes through the through hole 308 and cooperates with the second mounting hole 505 for the second pedal, so that the second pedal 7 is movably fixed on the middle shell 50. Preferably, the movable connection fixing post 71 includes a guiding portion and a clamping portion. The guiding portion is adapted to the second mounting hole 505 for the second pedal and can move up and down in the second mounting hole 505 for the second pedal. The clamping portion is used for movably clamping with the lower surface of the middle shell 50. There are various structures for the guiding portion and the clamping portion. The length of the guiding portion determines the moving range of the second pedal 7 relative to the second upper shell 30. More specifically, the moving range of the second pedal 7 can be limited to 1 mm to 10 mm. Preferably, the thickness of the middle shell 50 is set to be greater than the thickness of the second upper shell 30. Since the second pedal 7 is directly movably connected to the middle shell 50, when a person steps on the second pedal 7, the force can be directly transmitted to the middle shell 50. The shell thickness of the middle shell 50 is greater than that of the second upper shell 30, so it has higher mechanical strength and can bear higher weight.

[0161] Based on the above embodiments, when the first pedal 6 is movably arranged on the first upper shell 10, the first component group includes a first photoelectric switch 90. A first contact 62 is provided at a position corresponding to the first photoelectric switch 90 on the lower surface of the first pedal 6. After the first pedal 6 bears weight and moves downward, the first contact 62 triggers the first photoelectric switch 90, thereby controlling the operation of the scooter. For different setting positions of the first photoelectric switch 90, the first pedal 6 and the first upper shell 10 have various structures, which will be described by way of example one by one below.

[0162] In one embodiment, the first photoelectric switch 90 is arranged on the first control board 4, and the first control board 4 is located below the first upper shell 10; alternatively, the first photoelectric switch 90 is independently arranged below the first upper shell 10 and not on the first control board. The first contact 62 is arranged on a contact post 904 on the lower surface of the first pedal 6. A contact through hole 902 is provided on the first upper shell 10. A spring is provided in the contact through hole 902. The spring can be sleeved on the contact post 904 and abuts against the bottom flange of the contact through hole 902 to realize the reset of the first pedal 6.

[0163] In another embodiment, the first optoelectronic switch 90 is independently disposed on the first upper shell 10, below the first pedal 6. The first optoelectronic switch 90 is electrically connected to the first control board 4 through a connecting member to transmit an electrical signal. The first contact 62 is disposed on the lower surface of the first pedal 6. When a person stands on or applies force to the first pedal 6, the first pedal 6 is pressed down to trigger the first optoelectronic switch 90, and the signal is transmitted to the first control board 4 below the first upper shell 10 to control the operation of the scooter. More specifically, to fix the first optoelectronic switch 90, the first upper shell 10 is provided with a mounting groove 903 for mounting the first optoelectronic switch 90, and the first optoelectronic switch 90 is placed in the mounting groove 903. Preferably, the depth of the mounting groove 903 is greater than or equal to the height of the first optoelectronic switch 90 to prevent the first pedal 6 from squeezing or damaging the first optoelectronic switch 90 when moving relative to the first upper shell 10. A first wire passing hole 9031 is provided in or on the side of the mounting groove 903 for the connecting member to pass through. At the same time, to facilitate the reset of the first pedal 6 after being pressed down, the first pedal 6 is provided with a contact post for mounting a spring, and the first upper shell 10 is provided with a movable mounting hole. The contact post is adapted to the movable mounting hole. One end of the spring is connected to the contact post, and the other end is connected to the movable mounting hole to achieve the rebound of the first pedal 6. The contact post is located on the lower surface of the first pedal 6. At the same time, the spring is disposed around the contact post in the movable mounting hole, and the movable mounting hole is a non-through hole. One end of the spring abuts against the bottom wall of the movable mounting hole. In some other embodiments, the movable mounting hole may be a through hole, and a convex edge for abutting against the spring is provided at the bottom of the movable mounting hole, so that the spring can be telescoped between the convex edge and the first pedal 6. The through hole in the movable mounting hole may have other functions, such as facilitating the repair of components inside the first upper shell 10 or allowing the contacts of other optoelectronic switches to pass through, etc. At this time, the movable mounting hole is a contact through hole 902.

[0164] Based on the above embodiments, when the second pedal 7 is movably disposed on the second upper shell 30, the second component group includes a second optoelectronic switch 901. A second contact 72 is provided at a position corresponding to the second optoelectronic switch 901 on the lower surface of the second pedal 7. After the second pedal 7 bears weight and moves downward, the second contact 72 triggers the second optoelectronic switch 901, thereby controlling the operation of the scooter. For different installation positions of the second optoelectronic switch 901, the second pedal 7, the middle shell 50 and the second upper shell 30 have various structures, which will be described by way of example one by one below.

[0165] In one embodiment, the second pedal 7 is disposed on the second upper housing 30, the second photoelectric switch 901 is disposed on the second control board 5, the second control board 5 is located below the middle housing 50, the second contact 72 is disposed on the contact post 904 on the lower surface of the second pedal 7, a contact hole 309 is provided on the second upper housing 30, a contact through hole 902 is provided on the middle housing 50, the contact through hole 902 corresponds to the contact hole 309 and the contact, the contact corresponds to the position of the second photoelectric switch 901, and the contact triggers the second photoelectric switch 901 by passing through the contact hole 309 and the contact through hole 902 in sequence. To enable the second pedal 7 to move up and down relative to the second upper housing 30 and the middle housing 50, a flange is provided at the bottom of the contact through hole 902, a spring is provided above the flange, the spring is placed in the contact through hole 902, one end abuts against the flange, and the other end is connected to the contact post 904 on the pedal for resetting the second pedal 7.

[0166] In another embodiment, as shown in the attached Figure 19 and attached Figure 20 figures, the second pedal 7 is disposed on the second upper housing 30, the second photoelectric switch 901 is independently disposed on the second upper housing 30, below the second pedal 7, the second control board 5 is located below the middle housing 50, the second photoelectric switch 901 is electrically connected to the second control board 5 through a connecting member to transmit an electrical signal, the second contact 72 is disposed on the lower surface of the second pedal 7, when a person stands on or applies force to the second pedal 7, the second pedal 7 is pressed down to trigger the second photoelectric switch 901, and the signal is transmitted to the second control board 5 below the middle housing 50 to control the operation of the balance scooter. More specifically, to fix the second photoelectric switch 901, a mounting groove 903 for mounting the second photoelectric switch 901 is provided on the second upper housing 30, and the second photoelectric switch 901 is placed in the mounting groove 903. Preferably, the depth of the mounting groove 903 is greater than or equal to the height of the second photoelectric switch 901 to prevent the second pedal 7 from squeezing or damaging the second photoelectric switch 901 when moving relative to the second upper housing 30. At this time, a second wire passing hole 9032 is provided in or on the side of the mounting groove 903, a first through groove 503 is provided on the middle housing 50, and the connecting member can pass through the second wire passing hole 9032 and the first through groove 503 in sequence to be connected to the second control board 5.

[0167] In another embodiment, the second pedal 7 is disposed on the middle housing 50, the second photoelectric switch 901 is disposed on the second control board 5, the second control board 5 is located below the middle housing 50, the second contact 72 is disposed on the contact post 904 on the lower surface of the second pedal 7, a contact through-hole 902 is provided on the middle housing 50, the second contact 72 corresponds to the position of the second photoelectric switch 901, and the second contact 72 passes through the contact through-hole 902 to trigger the second photoelectric switch 901. To enable the second pedal 7 to move up and down relative to the second upper housing 30 and the middle housing 50, a convex edge is provided at the bottom of the contact through-hole 902, a spring is provided above the convex edge, the spring is placed in the contact through-hole 902, one end abuts against the convex edge, and the other end is connected to the contact post 904 on the pedal for resetting the second pedal 7.

[0168] In another embodiment, as shown in the appended Figure 17 and appended Figure 18 figures, the second pedal 7 is disposed on the middle housing 50, the second photoelectric switch 901 is independently disposed on the middle housing 50, below the second pedal 7, the second photoelectric switch 901 is electrically connected to the second control board 5 through a connecting member to transmit an electrical signal, the second control board 5 is located below the middle housing 50, the second contact 72 is disposed on the lower surface of the second pedal 7, when a person stands on or applies force to the second pedal 7, the second pedal 7 is pressed down to trigger the second photoelectric switch 901, and the signal is transmitted to the second control board 5 below the middle housing 50 to control the balance scooter to start working. More specifically, to fix the second photoelectric switch 901, an installation groove 903 for installing the second photoelectric switch 901 is provided on the middle housing 50, and the second photoelectric switch 901 is placed in the installation groove 903. Preferably, the depth of the installation groove 903 is greater than or equal to the height of the second photoelectric switch 901 to prevent the second pedal 7 from squeezing or damaging the second photoelectric switch 901 when moving relative to the second upper housing 30; a third wire passing hole 9033 is provided in or on the side of the installation groove 903, and the connecting member passes through the third wire passing hole 9033 to be connected to the second control board 5. At the same time, to facilitate the reset of the second pedal 7 after being pressed down, a contact post for installing a spring is provided on the second pedal 7, a movable installation hole is provided on the middle housing 50, a through-hole 308 for the second pedal 7 to pass through is provided on the second upper housing 30, the contact post is adapted to the movable installation hole, one end of the spring is connected to or abuts against the contact post, and the other end is connected to or abuts against the movable installation hole to realize the rebound of the second pedal 7, the contact post passes through the movable installation hole, moves up and down in the movable installation hole, and drives the second pedal 7 to reset under the action of the spring. The contact post is located on the lower surface of the second pedal 7, and at the same time, the spring is disposed around the contact post in the movable installation hole. The movable installation hole is a non-through hole, and one end of the spring abuts against the bottom wall of the movable installation hole. In some other embodiments, as shown in the appended Figure 18 and appended Figure 39As shown, the movable mounting hole can be a through hole, and a convex edge that abuts against the spring is provided at the bottom of the movable mounting hole, enabling the spring to expand and contract between the convex edge and the second pedal 7. The through hole in the movable mounting hole can have other functions, such as facilitating the repair of components inside the middle shell 50 or allowing the contacts of other optical switches to pass through, etc. At this time, the movable mounting hole is a contact through hole.

[0169] In some embodiments, it is necessary for the first vehicle body 1 and the second vehicle body 2 to rotate relative to each other to control the operation of the scooter. Therefore, the scooter further includes a rotating mechanism 3. One end of the rotating mechanism 3 is connected to the first vehicle body 1, and the other end is connected to the second vehicle body 2. There are various specific connection methods and structures, and several of the connection methods will be described by way of example below.

[0170] In one embodiment, the second end 32 of the rotating mechanism 3 is rotatably arranged in the second vehicle body 2, and the first end 31 is fixedly arranged in the first vehicle body 1. The first end 31 of the rotating mechanism 3 is fixedly arranged between the first upper shell 10 and the first lower shell 20, and the second end 32 of the rotating mechanism 3 is rotatably arranged between the middle shell 50 and the second lower shell 40. A limiting mechanism is arranged on the middle shell 50 and / or the second lower shell 40. The rotating mechanism 3 includes a rotating shaft 33 and a limiting mechanism, and the limiting mechanism is adapted to a limiting portion 34 on the rotating shaft 33 to limit the rotation angle of the rotating shaft 33. The first vehicle body 1 and the second vehicle body 2 rotate around the axis of the rotating shaft 33. The limiting mechanism includes a limiting block 37 and a limiting block mounting groove 38. The limiting block mounting groove 38 can be arranged on the second lower shell 40, or can be arranged on the middle shell 50, or can be arranged on both the second lower shell 40 and the middle shell 50. In the specific examples shown in Figure 1 Attachments Figure 4 and Figure 34 Attachments

[0171] To achieve the positioning of the second end 32 of the rotating mechanism 3, the middle shell 50 is provided with a rotating upper connection groove 507, and the second lower shell 40 is provided with a rotating lower connection groove 405 at the position corresponding to the rotating upper connection groove 507. The rotating mechanism 3 is rotatably arranged between the rotating upper connection groove 507 and the rotating lower connection groove 405. The rotating mechanism 3 includes a rotating shaft 33. To achieve the rotational connection of the rotating shaft 33 with the rotating upper shaft and the rotating lower shaft, a second sleeve or bearing 35 is sleeved on one end of the rotating shaft 33 located between the middle shell 50 and the second lower shell 40. And to install the bearing 35 or the sleeve, a limiting groove is provided in the rotating upper shaft and the rotating lower shaft. More specifically, when the bearing 35 is sleeved on the rotating shaft 33, bearing limiting grooves are provided in the rotating upper connection groove 507 and the rotating lower connection groove 405; when the second sleeve is sleeved on the rotating shaft 33, sleeve limiting grooves are provided in the rotating upper connection groove 507 and the rotating lower connection groove 405. The rotating shaft 33 can rotate in the second sleeve or the bearing 35, so that the first vehicle body 1 and the second vehicle body 2 can rotate relative to each other.

[0172] The first vehicle body 1 and the second vehicle body 2 are connected by the rotating mechanism 3. And to facilitate the user to observe the working condition of the scooter, the scooter further includes an indicator light board 508. The indicator light board 508 is connected to the control circuit board and can feedback the working state of the scooter through the light-emitting devices thereon. To maintain the stepping balance of the scooter, pedals are provided on both the first vehicle body 1 and the second vehicle body 2 for the user to step on. To avoid the user blocking the light of the light-emitting devices, the indicator light board 508 is arranged at the connection of the first vehicle body 1 and the second vehicle body 2, that is, at the position corresponding to the rotating mechanism 3, as shown in the appendix Figure 1 As shown, the indicator light board 508 is arranged below the relative position of the middle shell 50 and the rotating shaft 33, more specifically, inside the rotating upper connection groove 507. The rotating upper connection groove 507 is provided with a lamp board post 5081 and a first indicator light hole 5082. The second upper shell 30 is provided with a second indicator light hole 3101 at the position corresponding to the first indicator light hole 5082. The lamp board post 5081 is used to install the indicator light board 508, and the first indicator light hole 5082 and the second indicator light hole 3101 are used to transmit the light of the light-emitting devices on the indicator light board 508. The positions of the indicator light holes correspond to the light-emitting devices on the indicator light board 508. The light-emitting devices can be LED lamp beads or other small lamps. A lamp shade 3102 is covered on the second indicator light hole 3101.

[0173] In another embodiment, the second end 32 of the rotating mechanism 3 is rotatably arranged in the second vehicle body 2, and the first end 31 is fixedly arranged in the first vehicle body 1. The first end 31 of the rotating mechanism 3 is fixedly arranged between the first upper shell 10 and the first lower shell 20. The second end 32 of the rotating mechanism 3 is rotatably arranged in the middle shell 50. A cylindrical portion is provided at the corresponding position of the middle shell 50, and the rotating mechanism 3 can rotate within the cylindrical portion. More specifically, the cylindrical portion is the first sleeve 506, which is a complete hollow cylindrical structure and is adapted to the rotating mechanism 3. The rotating component can rotate relative to the second vehicle body 2 within the first sleeve 506. The complete hollow cylindrical structure can make the rotating component more stable during rotation and avoid shaking. Compared with other embodiments, the installation groove at the second end of the rotating mechanism 3 is jointly formed by the upper shell and the lower shell. If there are errors during production or installation, causing the installation groove formed by the upper shell and the lower shell to be misaligned or not corresponding, and the inner wall is not smooth, the rotating component will shake during rotation, resulting in the unsteady operation of the self-balancing scooter. Therefore, rotatably arranging one end of the rotating component in the first sleeve 506 can solve the above problems and ensure the stable operation of the self-balancing scooter. Another sleeve can also be arranged in the first sleeve to optimize the rotating connection structure between the second end of the rotating mechanism and the first sleeve.

[0174] The second upper shell 30 and the second lower shell 40 are provided with a first sleeve installation groove 406 corresponding to the first sleeve 506. After the middle shell 50 is fixed to the second upper shell 30 and / or the second lower shell 40, the first sleeve 506 is fixed in the first sleeve installation groove 406. One end of the rotating shaft 33 passes through the first sleeve 506 and can rotate within the first sleeve 506. A limit sleeve 36 is sleeved on the rotating shaft 33. The limit sleeve 36 is located on one side or both sides of the first sleeve 506 and abuts against the side wall of the first sleeve 506 to limit the movement of the rotating shaft 33 within the first sleeve 506 and limit one end of the rotating shaft 33 within the first sleeve 506. As shown in the Figure 6 specific example shown, the limit sleeve 36 is a circlip, which is stuck on both sides of the first sleeve 506. Since the circlip protrudes from the rotating shaft 33, a limit sleeve groove 4061 for accommodating the limit sleeve 36 is provided in the first sleeve installation groove 406 to prevent the rotating shaft 33 from interfering and colliding with the second lower shell 40 during rotation. The limit sleeve groove 4061 can also be used to position the circlip and prevent the circlip from shifting.

[0175] To prevent the first vehicle body 1 and the second vehicle body 2 from getting out of control during relative rotation, it is necessary to limit the relative rotation angle between the first vehicle body 1 and the second vehicle body 2. Therefore, the rotation mechanism 3 includes a rotating shaft 33 and a limit component. The limit component includes a limit block 37 and a limit block mounting groove 38. The limit block 37 is adapted to the limit portion 34 on the rotating shaft 33 to limit the rotation angle of the rotating shaft 33. The limit block 37 is located in the second vehicle body 2, and the limit block mounting groove 38 is provided on the middle shell 50 or the second lower shell 40; the limit portion 34 protrudes from the first sleeve 506, and the limit block mounting groove 38 is located on the side of the first sleeve 506 facing the wheel. More specifically, the first vehicle body 1 and the second vehicle body 2 rotate about the axis of the rotating shaft 33. In the specific example shown in the appendix Figure 6 As shown, the second lower shell 40 is provided with a limit block mounting groove 38 for mounting the limit block 37. One end of the rotating shaft 33 located between the middle shell 50 and the second lower shell 40 is provided with a limit portion 34. The limit portion 34 includes a limit boss with a notch. The limit block 37 is a limit piece corresponding to the limit boss, and the top surface of the limit piece can respectively abut against both ends of the limit boss when the rotating shaft 33 rotates, so as to limit the rotation angle of the rotating shaft 33.

[0176] The first vehicle body 1 and the second vehicle body 2 are connected by the rotation mechanism 3. In order to facilitate the user to observe the working condition of the scooter, the scooter further includes an indicator board 508. The indicator board 508 is connected to the control circuit board and can feedback the working state of the scooter through the light-emitting devices thereon. To maintain the pedaling balance of the scooter, pedals are provided on both the first vehicle body 1 and the second vehicle body 2 for the user to step on. To prevent the user from blocking the light of the light-emitting devices, the indicator board 508 is arranged at the connection of the first vehicle body 1 and the second vehicle body 2, that is, at the position corresponding to the rotation mechanism 3, as shown in the appendix Figure 5 and appendix Figure 6 As shown, the indicator board 508 is arranged above the relative position of the second upper shell 30 and the rotating shaft 33 and can be fixed to the second upper shell 30 by screws. The second upper shell 30 is provided with a second indicator light hole 3101 at the position corresponding to the second end 32 of the rotation mechanism 3. The position of the second indicator light hole 3101 corresponds to the light-emitting devices on the indicator board 508. The light-emitting devices can be LED lamp beads or other small lamps. A lamp cover 3102 is covered on the second indicator light hole 3101. In actual application, the indicator board 508 and the second indicator light hole 3101 can both be arranged at the position corresponding to the connection member of the first vehicle body 1, such as the position corresponding to the connection member of the first upper shell 10, as long as the normal use of the indicator board 508 is not affected.

[0177] In another embodiment, the second end 32 of the rotating mechanism 3 is rotatably arranged in the second vehicle body 2, and the first end 31 is fixedly arranged in the first vehicle body 1. The first end 31 of the rotating mechanism 3 is fixedly arranged between the first upper shell 10 and the first lower shell 20. The second end 32 of the rotating mechanism 3 is rotatably arranged in the second lower shell 40. A cylindrical part is provided at the corresponding position of the second lower shell 40, and the rotating mechanism 3 can rotate within the cylindrical part. More specifically, the cylindrical part is the first sleeve 506, which is a complete hollow cylindrical structure and is adapted to the rotating mechanism 3. The rotating part can rotate relative to the second vehicle body 2 in the first sleeve 506. The complete hollow cylindrical structure can make the rotating part more stable during rotation and avoid shaking. Compared with other embodiments, the installation groove at the second end 32 of the rotating mechanism 3 is formed by the upper shell and the lower shell together. If there are errors during production or installation, causing the installation groove formed by the upper shell and the lower shell to be misaligned or not corresponding, and the inner wall is not smooth, then the rotating part will shake during rotation, resulting in the unsteady operation of the balance bike. Therefore, rotatably arranging one end of the rotating part in the first sleeve 506 can solve the above problems and ensure the stable operation of the balance bike. Of course, the cylindrical part can also be arranged at the position corresponding to the rotating mechanism 3 on the second upper shell 30, and other structures are the same as those in this embodiment.

[0178] The middle shell 50 is provided with a first sleeve installation groove 406 corresponding to the first sleeve 506. The second upper shell 30 is provided with a covering part 310 corresponding to the first sleeve installation groove 406. The covering part 310 covers the outside of the first sleeve installation groove 406. After the middle shell 50 is fixed to the second upper shell 30 and / or the second lower shell 40, the first sleeve 506 is fixed in the first sleeve installation groove 406. One end of the rotating shaft 33 passes through the first sleeve 506 and can rotate in the first sleeve 506; a limiting sleeve 36 is sleeved on the rotating shaft 33. The limiting sleeve 36 is located on one side or both sides of the first sleeve 506 and abuts against the side wall of the first sleeve 506, for restricting the movement of the rotating shaft 33 in the first sleeve 506 and limiting one end of the rotating shaft 33 in the first sleeve 506. As shown in the specific example Figure 7 and Figure 8 shown, the limiting sleeve 36 is a snap ring, which is stuck on both sides of the first sleeve 506; since the snap ring protrudes from the rotating shaft 33, a limiting sleeve groove 4061 for accommodating the limiting sleeve 36 is provided in the first sleeve installation groove 406, to avoid interference and collision between the rotating shaft 33 and the second lower shell 40 during rotation. The limiting sleeve groove 4061 can also be used to position the snap ring and avoid displacement of the snap ring.

[0179] To prevent the first vehicle body 1 and the second vehicle body 2 from getting out of control during relative rotation, it is necessary to limit the relative rotation angle between the first vehicle body 1 and the second vehicle body 2. Therefore, a limiting mechanism is provided on the middle shell 50 and / or the second lower shell 40. The rotating mechanism 3 includes a rotating shaft 33 and a limiting mechanism. The limiting mechanism is adapted to a limiting portion 34 on the rotating shaft 33 to limit the rotation angle of the rotating shaft 33. The first vehicle body 1 and the second vehicle body 2 rotate around the axis of the rotating shaft 33. The limiting mechanism includes a limiting block 37 and a limiting block mounting groove 38. The limiting block mounting groove 38 can be provided on the second lower shell 40, or on the middle shell 50, or on both the second lower shell 40 and the middle shell 50. In the specific example shown in the attached Figure 7 and the attached Figure 8 In the specific example shown, the limiting block mounting groove 38 is provided on the second lower shell 40. A limiting portion 34 is provided at one end of the rotating shaft 33 located between the middle shell 50 and the second lower shell 40. The limiting portion 34 includes a limiting boss with a notch. The limiting block 37 is a limiting piece corresponding to the limiting boss, and the top surface of the limiting piece can respectively abut against both ends of the limiting boss when the rotating shaft 33 rotates to limit the rotation angle of the rotating shaft 33.

[0180] The first vehicle body 1 and the second vehicle body 2 are connected by the rotating mechanism 3. In order to facilitate the user to observe the working condition of the scooter, the scooter further includes an indicator board 508. The indicator board 508 is connected to the control circuit board and can feedback the working state of the scooter through the light-emitting devices thereon. To maintain the pedaling balance of the scooter, pedals are provided on both the first vehicle body 1 and the second vehicle body 2 for the user to step on. To prevent the user from blocking the light of the light-emitting devices, the indicator board 508 is provided at the connection of the first vehicle body 1 and the second vehicle body 2, that is, at the position corresponding to the rotating mechanism 3, as shown in the attached Figure 7 and the attached Figure 8 As shown, the indicator board 508 is provided below the relative position of the middle shell 50 and the rotating shaft 33. More specifically, it is located in the first sleeve mounting groove 406. A lamp board column 5081 and a first indicator hole 5082 are provided in the first sleeve mounting groove 406. A second indicator hole 3101 is provided at the position of the second upper shell 30 corresponding to the first indicator hole 5082. The lamp board column 5081 is used to mount the indicator board 508. The first indicator hole 5082 and the second indicator hole 3101 are used to transmit the light of the light-emitting devices on the indicator board 508. The positions of the first indicator hole 5082 and the second indicator hole 3101 correspond to the light-emitting devices on the indicator board 508. The light-emitting devices can be LED lamp beads or other small lamps. A lamp cover 3102 is provided on the second indicator hole 3101.

[0181] In another embodiment, the second end 32 of the rotating mechanism 3 is rotatably arranged in the second vehicle body 2, and the first end 31 is fixedly arranged in the first vehicle body 1. The first end 31 of the rotating mechanism 3 is fixedly arranged between the first upper shell 10 and the first lower shell 20. The second end 32 of the rotating mechanism 3 is rotatably clamped between the second upper shell 30 and the second lower shell 40. A limiting mechanism is arranged on the second upper shell 30 and / or the second lower shell 40. The limiting mechanism is adapted to the limiting portion 34 on the rotating shaft 33 to limit the rotation angle of the rotating shaft 33. The first vehicle body 1 and the second vehicle body 2 rotate around the axis of the rotating shaft 33. The limiting mechanism includes a limiting block 37 and a limiting block mounting groove 38. The limiting mechanism is located between the second upper shell 30 and the second lower shell 40. Therefore, the limiting block mounting groove 38 can be arranged on the second lower shell 40, or on the lower surface of the second upper shell 30, or on both the second lower shell 40 and the second upper shell 30. In the specific example shown in the attached Figure 9 and attached Figure 10 In the specific example shown, the limiting block mounting groove 38 is arranged on the second lower shell 40. One end of the rotating shaft 33 located between the middle shell 50 and the second lower shell 40 is provided with a limiting portion 34. The limiting portion 34 includes a limiting boss with a notch. The limiting block 37 is a limiting piece corresponding to the limiting boss, and the top surface of the limiting piece can respectively abut against both ends of the limiting boss when the rotating shaft 33 rotates to limit the rotation angle of the rotating shaft 33.

[0182] A second sleeve (not shown) or a bearing 35 is sleeved on one end of the rotating shaft 33 placed between the second upper shell 30 and the second lower shell 40. Correspondingly, a rotating upper connection groove 507 is provided on the second upper shell 30, and a rotating lower connection groove 405 is provided on the second lower shell 40. The rotating upper connection groove 507 and the rotating lower connection groove 405 are arranged opposite to each other. And in order to install the bearing 35 or the second sleeve, limiting grooves are provided in the rotating upper connection groove 507 and the rotating lower connection groove 405. More specifically, when a bearing 35 is sleeved on the rotating shaft 33, bearing limiting grooves are provided in the rotating upper connection groove 507 and the rotating lower connection groove 405; when a second sleeve is sleeved on the rotating shaft 33, sleeve limiting grooves are provided in the rotating upper connection groove 507 and the rotating lower connection groove 405. The rotating shaft 33 can rotate in the second sleeve or the bearing 35, so that the first vehicle body 1 and the second vehicle body 2 can rotate relative to each other.

[0183] The first vehicle body 1 and the second vehicle body 2 are connected by the rotating mechanism 3. And in order to facilitate the user to observe the working condition of the scooter, the scooter further includes an indicator light board 508. The indicator light board 508 is connected to the control circuit board and can feedback the working state of the scooter through the light-emitting devices thereon. To maintain the pedaling balance of the scooter, pedals are provided on both the first vehicle body 1 and the second vehicle body 2 for the user to step on. To avoid the user blocking the light of the light-emitting devices, the indicator light board 508 is arranged at the connection of the first vehicle body 1 and the second vehicle body 2, that is, at the position corresponding to the rotating mechanism 3, as shown in the attachedFigure 9 and the attached Figure 10 As shown, the indicator board 508 is arranged below the position corresponding to the second end 32 of the rotating mechanism 3 on the second upper shell 30. More specifically, the indicator board 508 is located in the rotating upper connecting groove 507. The rotating upper connecting groove 507 is provided with a lamp board post 5081 and a second indicator light hole 3101. The lamp board post 5081 is used to install the indicator board 508, and the second indicator light hole 3101 is used to transmit the light of the light-emitting device on the indicator board 508. The position of the second indicator light hole 3101 corresponds to the light-emitting device on the indicator board 508. The light-emitting device can be an LED lamp bead or other small lamps. A lamp cover 3102 is covered on the second indicator light hole 3101.

[0184] In the embodiment where the first end 31 of the above-mentioned rotating mechanism 3 is fixedly arranged in the first vehicle body 1, the connection structure between the first end 31 of the rotating mechanism 3 and the first upper shell 10 and the first lower shell 20 can be: a rotating mechanism upper fixing groove 106 is arranged at one end of the first upper shell 10 close to the second upper shell 30. Correspondingly, a rotating mechanism lower fixing groove 204 is arranged at one end of the first lower shell 20 close to the second lower shell 40. The rotating mechanism 3 is fixed between the rotating mechanism upper fixing groove 106 and the rotating mechanism lower fixing groove 204. After the rotating mechanism upper fixing groove 106 and the rotating mechanism lower fixing groove 204 are connected and fixed on the first upper shell 10 and the first lower shell 20, a fixing groove fixedly connected to the first end 31 of the rotating mechanism 3 is formed. The fixing groove can limit the relative rotation of the first end 31 of the rotating mechanism 3 and the first vehicle body 1, so that the first vehicle body 1 and the second vehicle body 2 can rotate relative to each other smoothly. The connection structure between the first end 31 of the rotating mechanism 3 and the first upper shell 10 and the first lower shell 20 can also be: a rotating mechanism fixing post 107 is arranged at one end of the first upper shell 10 close to the second upper shell 30. A rotating mechanism fixing hole 39 is arranged on the first end 31 of the rotating mechanism 3. The shape of the rotating mechanism fixing post 107 is adapted to that of the rotating mechanism fixing hole 39. The rotating mechanism 3 is fixed between the first upper shell 10 and the first lower shell 20 through the rotating mechanism fixing post 107. During installation, the rotating mechanism fixing post 107 passes through the rotating mechanism fixing hole 39, so that the first end 31 of the rotating mechanism 3 is fixedly connected to the first vehicle body 1 and is relatively stationary, thereby enabling the first vehicle body 1 and the second vehicle body 2 to rotate relative to each other smoothly; the rotating mechanism fixing hole 39 can be a through structure or a non-through structure. When the rotating mechanism fixing hole 39 is a through structure, rotating mechanism fixing posts 107 can be arranged at the corresponding positions of the first upper shell 10 and the first lower shell 20; when the rotating mechanism fixing hole 39 is a non-through structure, a rotating mechanism fixing post 107 is arranged at the corresponding position of the first upper shell 10 or the first lower shell 20, and the rotating mechanism fixing post 107 is arranged towards the rotating mechanism fixing hole 39 so that it can be inserted into the rotating mechanism fixing hole 39.

[0185] In some other embodiments, a cylindrical structure is provided on the first upper shell or the first lower shell, and the first end of the rotating mechanism is fixedly clamped with the cylindrical structure.

[0186] Based on the above-mentioned several embodiments, connecting the second axle and the second end 32 of the rotating mechanism 3 to the same platform can make the rotating mechanism 3 and the second wheel 80 rotate more smoothly. More specifically, when the second axle mounting seat 802 is arranged on the second upper shell 30, the second axle is connected to the second upper shell 30. Preferably, the second end 32 of the rotating mechanism 3 is rotatably clamped between the second upper shell 30 and the second lower shell 40, or the second end 32 of the rotating mechanism 3 is rotatably arranged in the first sleeve 506 of the second upper shell 30; when the second axle mounting seat 802 is arranged on the middle shell 50, the second axle is connected to the middle shell 50. Preferably, the second end 32 of the rotating mechanism 3 is rotatably arranged between the middle shell 50 and the second lower shell 40, or the second end 32 of the rotating mechanism 3 is rotatably arranged in the first sleeve 506 of the middle shell 50; when the second axle mounting seat 802 is arranged on the second lower shell 40, the second axle is connected to the second lower shell 40. Preferably, the second end 32 of the rotating mechanism 3 is rotatably arranged between the middle shell 50 and the second lower shell 40, or the second end 32 of the rotating mechanism 3 is rotatably arranged in the first sleeve 506 of the second lower shell 40.

[0187] In one embodiment, the second end 32 of the rotating mechanism 3 is rotatably arranged in the second vehicle body 2, and the first end 31 is rotatably arranged in the first vehicle body 1; the rotating mechanism 3 includes a rotating shaft 33, one end of the rotating shaft 33 is connected to the first vehicle body 1, and the other end is connected to the second vehicle body 2; the first vehicle body 1 and the second vehicle body 2 are rotatably connected through the rotating shaft 33; a limiting portion 34 is provided at one end of the rotating shaft 33, and a limiting mechanism is provided at a position corresponding to the limiting portion 34 on the first vehicle body 1 or the second vehicle body 2.

[0188] Based on the above embodiments, as shown in the attached Figure 15 to the attached Figure 16 As shown, at this time, the rotating shaft 33 is rotatably connected to both the first vehicle body 1 and the second vehicle body 2. In order to install the second end 32 and the first end 31 of the rotating shaft 33, preferably, in one embodiment, the second end 32 of the rotating shaft 33 is located between the middle shell 50 and the second lower shell 40, and the first end 31 is located between the first upper shell 10 and the first lower shell 20. More specifically, rotating upper connection grooves 507 are provided on the first upper shell 10 and the middle shell 50, and rotating lower connection grooves 405 are provided at positions corresponding to the rotating upper connection grooves 507 on the first lower shell 20 and the second lower shell 40. Bearings 35 are sleeved at both ends of the rotating shaft 33, and corresponding bearing installation grooves 205 are provided on the rotating upper connection grooves 507 and the rotating lower connection grooves 405. The rotating connection between the first vehicle body 1 and the second vehicle body 2 is realized through the bearings 35, and the rotation is restricted through the limiting portion.

[0189] In another embodiment, which is different from the above embodiment, the second end 32 of the rotating shaft 33 is located between the second upper shell 30 and the second lower shell 40, and the first end 31 is located between the first upper shell 10 and the first lower shell 20. More specifically, rotating upper connecting grooves 507 are provided on the first upper shell 10 and the second upper shell 30, and rotating lower connecting grooves 405 corresponding to the rotating upper connecting grooves 507 are provided on the first lower shell 20 and the second lower shell 40. Bearings 35 are sleeved on both ends of the rotating shaft 33, and corresponding bearing mounting grooves 205 are provided on the rotating upper connecting grooves 507 and the rotating lower connecting grooves 405. The rotating connection with the first vehicle body 1 and the second vehicle body 2 is achieved through the bearings 35, and the rotation is restricted by the limiting portion.

[0190] In another embodiment, which is different from the above embodiment, both ends of the rotating shaft 33 are rotatably connected to the sleeves on the first vehicle body 1 and the second vehicle body 2. More specifically, a third sleeve is provided on the first upper shell 10 or the first lower shell 20, and a first sleeve 506 is provided on the second upper shell 30 or the middle shell 50 or the second lower shell 40. One end of the rotating shaft 33 is rotatably arranged in the third sleeve, and the other end is rotatably arranged in the first sleeve 506. To prevent the rotating shaft 33 from separating from the first sleeve 506 and the third sleeve, snap rings or washers are sleeved at the connection positions of the rotating shaft 33 with the first sleeve 506 and the third sleeve. A lubricating layer is provided between the contact surfaces of the rotating shaft 33 with the first sleeve 506 and the third sleeve, making the rotation of the rotating shaft 33 with the first sleeve 506 and the third sleeve smoother. The lubricating layer can be lubricating oil or other common lubricating materials.

[0191] In addition, for safety considerations, the scooter is equipped with a horn 409 as a reminder device. Since the volume of the horn 409 is small, it can be installed in the second vehicle body 2. The second component group includes the horn 409. More specifically, it can be installed on the second lower shell 40. The second lower shell 40 is provided with a horn mounting groove 407 for installing the horn 409. Sound holes are provided in the horn mounting groove 407, and the horn 409 is installed facing the sound holes. At the same time, for convenient connection, the horn 409 needs to be connected to the control circuit board in the second vehicle body 2, that is, the second control circuit board. Of course, in some other embodiments, the first component group can also include the horn 409, and the horn 409 can also be installed in the first vehicle body 1.

[0192] Preferably, for convenient control of the scooter, a main switch is provided on the first vehicle body 1 or the second vehicle body 2, and the main switch is connected to the first control board 4 or the second control board 5. As shown in the specific examples in the attached Figure 1 、attached Figure 7 、attached Figure 13 figures, a main switch mounting hole 408 is provided on the second lower shell 40 of the second vehicle body 2 for installing the main switch. Of course, in other embodiments, the main switch can be provided on the first lower shell 20 of the first vehicle body 1.

[0193] Preferably, in some embodiments, to facilitate the taking and holding of the scooter, handles 8 are provided on the first vehicle body 1 and the second vehicle body 2. More specifically, the handle 8 is arranged at the connection of the first vehicle body 1 and the second vehicle body 2, and includes a first part and a second part that are separately arranged. The first part, the second part, the first vehicle body 1 and the second vehicle body 2 form a handle cavity, and the handle cavity is basically located at the middle position of the scooter. Since the weights of the first vehicle body 1 and the second vehicle body 2 are basically balanced, the forces on both sides of the handle 8 arranged at this position are also balanced. After the user holds the handle 8, it is more labor-saving to take and hold the scooter.

[0194] The above-mentioned embodiments are only the preferred embodiments of the present invention, and the scope of protection of the present invention cannot be limited thereby. Any non-substantial changes and substitutions made by those skilled in the art on the basis of the present invention belong to the scope of protection required by the present invention.

Claims

1. A balancing vehicle, comprising a first vehicle body and a second vehicle body, characterized in that: The first vehicle body comprises a first upper shell, a first lower shell and a first component group, the second vehicle body comprises a second upper shell, a middle shell, a second lower shell and a second component group, the middle shell is arranged between the second upper shell and the second lower shell, the first component group comprises a battery assembly, the weight of the first component group is greater than the weight of the second component group; the middle shell makes the weight of the first vehicle body and the second vehicle body basically balanced; the upper surface of the second upper shell and the upper surface of the first upper shell are on the same horizontal plane; A receiving portion is provided at the lower portion of the second upper shell, the middle shell is placed in the receiving portion, and the lower surface of the receiving portion contacts the upper surface of the middle shell; a fifth connecting structure is provided on the second upper shell, and a sixth connecting structure is correspondingly provided on the second lower shell, and the fifth connecting structure and the sixth connecting structure cooperate to connect the second upper shell to the second lower shell; The fifth connection structure and the sixth connection structure are any combination of connection holes or connection columns; The second component group includes a second wheel, the second wheel includes a second axle, a second axle mounting seat is arranged at the lower side of the second upper shell, a first through slot is arranged on the middle shell, the second axle mounting seat passes through the first through slot and is located below the middle shell and is fixedly connected to the second axle, and the first through slot on the middle shell has an opening facing the second wheel; A first wheel baffle is provided on a side of the second upper shell close to the second wheel, and a second wheel baffle is provided on a side of the second lower shell close to the second wheel. The first wheel baffle and the second wheel baffle are provided correspondingly to form a seal for the second axle. An outer side end of the middle shell close to the second wheel is provided to abut against the first wheel baffle or the second wheel baffle to position the middle shell. The balancing car also includes a rotating mechanism, a first end of which is connected to the first vehicle body, and a first end of which is connected to the second vehicle body; a second end of the rotating mechanism is rotatably clamped between the second upper shell and the second lower shell, and a limiting mechanism is provided on the second upper shell and / or the second lower shell; the middle shell avoids the second end of the rotating mechanism.

2. The balancing vehicle according to claim 1, characterized in that: The battery assembly is arranged on the first upper shell, a battery positioning column is arranged on the first upper shell, and the battery assembly is fixed to the first upper shell through the battery positioning column; or, the battery assembly is arranged on the first lower shell, a battery positioning column is arranged on the first lower shell, and the battery assembly is fixed to the first lower shell through the battery positioning column.

3. The balancing vehicle according to claim 2, characterized in that: The battery positioning column comprises a battery pre-positioning column and a battery locking column, and the outer wall of the battery assembly is provided with a pre-positioning groove and a locking hole correspondingly; and / or The battery positioning posts include two groups, and the two groups of battery positioning posts are symmetrically arranged on the first upper shell or the first lower shell.

4. The scooter according to claim 1, characterized in that: A first connection structure is provided on the middle shell, and a second connection structure is correspondingly provided on the second upper shell. The first connection structure and the second connection structure cooperate to connect the middle shell and the second upper shell. The first connection structure and the second connection structure are any combination of connection holes or connection posts; and / or A third connection structure is provided on the middle shell, and a fourth connection structure is correspondingly provided on the second lower shell. The third connection structure and the fourth connection structure cooperate to connect the middle shell and the second lower shell. The third connection structure and the fourth connection structure are any combination of connection holes or connection posts.

5. The self-balancing scooter according to claim 4, wherein: When the middle shell is connected to the second upper shell, there are two first connection structures, and the two first connection structures are symmetrically arranged on the middle shell, and / or the line connecting the two first connection structures is perpendicular to the horizontal line; When the middle shell is connected to the second lower shell, there are two third connection structures, and the two third connection structures are symmetrically arranged on the middle shell, and / or the line connecting the two third connection structures is perpendicular to the horizontal line.

6. The scooter according to claim 1, wherein: The thickness of the middle shell is greater than the thickness of the second upper shell; and / or, the middle shell is provided with middle shell reinforcing ribs.

7. The self-balancing scooter according to any one of claims 1 to 6, wherein: A seventh connection structure is provided on the first upper shell, and an eighth connection structure is correspondingly provided on the first lower shell. The seventh connection structure and the eighth connection structure cooperate to connect the first upper shell and the first lower shell. The seventh connection structure and the eighth connection structure are any combination of connection holes or connection posts.

8. The self-balancing scooter according to claim 1, characterized in that: The first component group includes a first wheel, and the second component group includes a second wheel. The first wheel is provided on the outer end of the first upper shell away from the middle shell.

9. The scooter as claimed in claim 8, wherein: The first wheel includes a first axle. A third wheel baffle is provided on one side of the first upper shell close to the first wheel, and a fourth wheel baffle is provided on one side of the first lower shell close to the first wheel. The third wheel baffle and the fourth wheel baffle are correspondingly arranged to form a seal for the first axle.

10. The scooter according to claim 8, wherein: The first component group further includes a first fender, and the first fender is provided on the outer side of the first upper shell and above the first wheel. The first fender and the first upper shell are of an integral structure; and / or The second component group further includes a second fender, and the second fender is provided on the outer side of the second upper shell and above the second wheel. The second fender and the second upper shell are of an integral structure.

11. The self-balancing scooter according to claim 1, characterized in that: The first component group includes a first pedal, and the second component group includes a second pedal. The first pedal is provided on the first upper shell, and the second pedal is provided on the second upper shell or the middle shell; The structure of the first pedal is as follows: an integral pedal, or composed of a tread and a foot pad; The structure of the second pedal is as follows: an integral pedal, or composed of a tread and a foot pad.

12. The self-balancing scooter according to claim 11, characterized in that: The first upper shell is provided with a first pedal mounting hole, and the first pedal is provided on the first upper shell through the first pedal mounting hole; A second pedal first mounting hole is provided on the second upper shell, and the second pedal includes a movable connection fixing post, and the movable connection fixing post is in fit connection with the second pedal first mounting hole.

13. The self-balancing scooter according to claim 12, wherein: At a position corresponding to the second pedal first mounting hole, a second pedal second mounting hole is provided on the middle shell; the movable connection fixing post is in fit with the second pedal first mounting hole and the second pedal second mounting hole, so that the second pedal is movably fixed on the second upper shell.

14. The scooter according to claim 11, characterized in that: A through hole is provided on the second upper shell, a second pedal second mounting hole is provided on the middle shell, and the second pedal includes a movable connection fixing post; the movable connection fixing post passes through the through hole and is in fit with the second pedal second mounting hole, so that the second pedal is movably fixed on the middle shell.

15. The scooter according to any one of claims 11 to 14, characterized in that: The second component group further includes a second photoelectric switch, and the second photoelectric switch is provided on the lower side of the middle shell; the second pedal includes a contact, and a contact through hole is provided on the middle shell; when the second pedal is provided on the second upper shell, a contact hole is provided on the second upper shell, and the contact is in fit with the second photoelectric switch through the contact hole and the contact through hole; When the second pedal is provided on the middle shell, the contact is in fit with the second photoelectric switch through the contact through hole; a spring is provided in the contact through hole, so that the second pedal can rebound.

16. The self-balancing scooter according to any one of claims 11 to 14, characterized in that: The second component group further includes a second photoelectric switch, and the second photoelectric switch is provided on the second upper shell and is located below the second pedal; an installation groove for installing the second photoelectric switch is provided on the second upper shell, and the second photoelectric switch is placed in the installation groove; The second pedal includes a contact, and the contact is arranged corresponding to the second photoelectric switch; a movable installation hole is provided on the middle shell, a contact hole is provided on the second upper shell, the contact hole corresponds to the movable installation hole, the second pedal further includes a contact post, the contact post is adapted to the movable installation hole, and a spring is provided in the movable installation hole, so that the second pedal can rebound.

17. The balance bike according to claim 1, wherein The second axle mounting seat includes a second axle pressing piece fixing hole and a second axle mounting groove; the second axle pressing piece fixing hole includes two groups, and the two groups of second axle pressing piece fixing holes are symmetrically arranged on both sides of the second axle mounting groove; and / or A first axle mounting seat is provided on the lower side of the first upper shell, or a first axle mounting seat is provided on the first lower shell; the first axle mounting seat includes a first axle pressing piece fixing hole and a first axle mounting groove; the first axle pressing piece fixing hole includes two groups, and the two groups of first axle pressing piece fixing holes are symmetrically arranged on both sides of the first axle mounting groove.

18. The balance bike according to claim 17, characterized in that, Second control board connection columns are provided on the lower side of the middle shell, and the second control board connection columns include two groups, and the two groups of second control board connection columns are respectively located on both sides of the second axle mounting seat; and / or First control board connection columns are provided on the lower side of the first upper shell; the first control board connection columns include two groups, and the two groups of first control board connection columns are respectively arranged on both sides of the first axle mounting seat.

19. The self-balancing scooter according to claim 1, characterized in that: The first end of the rotating mechanism is fixedly provided between the first upper shell and the first lower shell.

20. The scooter according to claim 19, wherein A fixing groove for the rotating mechanism is provided at one end of the first upper shell close to the second upper shell. Correspondingly, a fixing groove for the rotating mechanism is provided at one end of the first lower shell close to the second lower shell, and the rotating mechanism is fixed between the fixing groove for the rotating mechanism on the upper part and the fixing groove for the rotating mechanism on the lower part; or A fixing post for the rotating mechanism is provided at one end of the first upper shell close to the second upper shell, and the rotating mechanism is fixed between the first upper shell and the first lower shell through the fixing post for the rotating mechanism.

21. The scooter according to claim 1, characterized in that: The second end of the rotating mechanism is rotatably arranged in the second vehicle body, and the first end is rotatably arranged in the first vehicle body; the rotating mechanism includes a rotating shaft, one end of the rotating shaft is connected to the first vehicle body, and the other end is connected to the second vehicle body; the rotating shaft rotates relative to the first vehicle body and the second vehicle body; a limiting part is arranged at one end of the rotating shaft, and a limiting mechanism is arranged at a position corresponding to the limiting part on the first vehicle body or the second vehicle body; Rotating upper connection grooves are provided on the first upper shell and the second upper shell, and rotating lower connection grooves are provided at positions corresponding to the rotating upper connection grooves on the first lower shell and the second lower shell. Bearings are sleeved at both ends of the rotating shaft, and corresponding bearing installation grooves are provided on the rotating upper connection grooves and the rotating lower connection grooves; or A third sleeve is provided on the first upper shell or the first lower shell, and a first sleeve is provided on the second upper shell or the second lower shell. One end of the rotating shaft is rotatably arranged in the third sleeve, and the other end is rotatably arranged in the first sleeve.

22. The scooter according to claim 1, characterized in that, The first component group includes a first control board, and the second component group includes a second control board; the first control board is arranged between the first upper shell and the first lower shell; the second control board is arranged between the middle shell and the second lower shell; the first control board is fixedly connected to the first upper shell or the first lower shell; the second control board is fixedly connected to the second upper shell or the middle shell or the second lower shell.

23. The self-balancing scooter according to claim 1, wherein The second component group includes a speaker; a speaker installation groove is provided in the second lower shell, and the speaker is arranged in the speaker installation groove.

24. The scooter according to claim 1, characterized in that, It further includes a main switch, a main switch installation hole is provided on the inner side of the second lower shell, and the main switch is arranged in the main switch installation hole.

25. The self-balancing scooter according to claim 1, wherein It further includes a handle; the handle is arranged at the connection part of the first vehicle body and the second vehicle body; the handle includes a first part and a second part which are separately arranged, and the first part, the second part, the first vehicle body and the second vehicle body form a handle cavity.

Images