Two-wheeled electric balance car

Abstract

The utility model belongs to the technical field of balancing vehicles, and specifically relates to a two-wheeled electric balancing vehicle. Aiming at the problem that the existing balancing vehicles only have pedals swinging back and forth but the vehicle shell does not swing, and the connection structure between the pedals and the through-axle is not reasonable, the utility model adopts the following technical scheme: a two-wheeled electric balancing vehicle, comprising: left and right wheels; a through-axle, the two ends of which are respectively fixed to the hub motors of the left and right wheels; a vehicle shell, which is fixed relative to the through-axle and has left and right pedal grooves; left and right pedal assemblies, which swing back and forth relative to the through-axle and the vehicle shell; a sensor; wherein both left and right pedal assemblies have swinging grooves, and the swinging grooves are provided with limiters, the limiters are fixed to the through-axle, and the limiters cooperate with the positioning grooves to limit the swinging angle of the pedal assemblies. In the two-wheeled electric balancing vehicle of the utility model, the left and right pedal assemblies swing back and forth relative to the through-axle and the vehicle shell, and there is no need to set up an additional skeleton; the swinging angle of the pedal assemblies is limited by the cooperation of the swinging grooves and the limiters.

Description

Technical Field

[0001] The utility model belongs to the technical field of balancing vehicles, and in particular relates to a two-wheeled electric balancing vehicle. Background Art

[0002] The two-wheeled electric balance car uses left and right wheels side by side, and realizes forward, backward, turning and other operations by detecting the front and rear tilt angles of the left and right pedals.

[0003] Existing two-wheeled electric balancing vehicles mostly use the method of relative rotation of the left and right car bodies. The left and right car bodies both include a car body, pedals, and a connecting shaft fixed to the motor shaft. The controller, battery, etc. set in the car body also rotate with the car body. This structure requires a connecting component to connect the left and right connecting shafts so that the two connecting shafts can rotate relative to each other. The connecting shaft also needs to be axially positioned / limited with the two connecting shafts, which places high requirements on the connecting component. In addition, the overall rotation of the car body also poses certain risks.

[0004] Chinese invention patent applications with application publication numbers CN106560384A, CN207241897U, CN110803244A, etc. disclose a variety of balancing vehicles using an integral support frame, in which the axle on the wheel is fixedly connected to the support frame, and the pedal device is rotatably connected to the support frame, so that only the pedal device but not the vehicle body swings back and forth.

[0005] However, when the pedal device is installed on a supporting frame (such as a supporting shaft), the connection structure between the existing pedal device and the supporting shaft has room for improvement. Utility Model Content

[0006] The utility model aims to solve the problem that the existing balancing vehicle only has the pedals swinging forward and backward but the vehicle shell does not swing, and the connection structure between the pedals and the through-axle is not reasonable, and provides a two-wheeled electric balancing vehicle, which optimizes the forward and backward swinging structure of the pedal assembly. Furthermore, the axial positioning, radial anti-slip and swing angle limiting structures of the pedal assembly are optimized.

[0007] To achieve the above purpose, the utility model adopts the following technical solution: a two-wheeled electric balancing vehicle, the two-wheeled electric balancing vehicle comprising:

[0008] The left and right wheels both include hub motors;

[0009] A through shaft, with both ends fixedly connected to the hub motors of the left and right wheels respectively;

[0010] The vehicle shell is fixed relative to the through-axle and is provided with left and right pedal grooves;

[0011] The left and right pedal assemblies are sleeved on the through-axle, located in the pedal groove, and swing forward and backward relative to the through-axle and the vehicle shell;

[0012] A sensor to detect the front and rear tilt angles of the left and right pedal assemblies;

[0013] Among them, the left and right pedal assemblies are both provided with a swing groove, and a limiter is provided in the swing groove. The limiter is fixedly connected to the through shaft, and the limiter cooperates with the positioning groove to limit the front and rear swing angle of the pedal assembly.

[0014] The two-wheeled electric balancing vehicle of the utility model has a vehicle shell and a through-axle fixed, and the left and right pedal assemblies swing forward and backward relative to the through-axle and the vehicle shell, without the need for an additional frame; the left and right pedal assemblies swing, but the vehicle shell does not swing; the left and right pedal assemblies are provided with swing grooves, and a limiting piece is fixed on the through-axle, and the front and rear swing angle limitation of the pedal assembly is achieved through the cooperation of the swing groove and the limiting piece.

[0015] As an improvement, the pedal assembly can be raised and lowered relative to the through-axle, the two-wheeled electric balancing vehicle includes a detection switch for detecting the height of the pedal assembly, and the two-wheeled electric balancing vehicle also includes a compression spring for raising the pedal assembly. The detection switch can detect whether there is a person standing on the pedal.

[0016] As an improvement, the detection switch is a micro switch; the pedal assembly forms a guide groove in the height direction, the guide groove is oval in shape, and the size of the guide groove is adapted to the size of the through shaft.

[0017] As an improvement, the pedal assembly includes an upper plate and a lower plate fixedly connected by screws, the upper plate forms an upper groove, the lower plate forms a lower groove, and the upper groove and the lower groove enclose each other to form the guide groove.

[0018] As an improvement, a spring groove is formed on the bottom surface of the pedal groove of the vehicle shell, and the compression spring is located in the spring groove; there are four compression springs.

[0019] As an improvement, the limiting member cooperates with the positioning groove to position the pedal assembly in the axial direction, and / or the pedal groove positions the pedal assembly in the axial direction.

[0020] As an improvement, the limiting member is a hexagon socket cylindrical head screw, the swing groove is oval in shape, and the size of the cap of the hexagon socket cylindrical head screw is adapted to the size of the swing groove along the axial direction of the through shaft.

[0021] As an improvement, the limiting member is a screw, and the limiting member is threadedly connected to the through shaft, or the limiting member is welded to the through shaft.

[0022] As an improvement, a whole soft cushion is provided above the vehicle shell, and the soft cushion covers both the left and right pedal assemblies.

[0023] As an improvement, the through shaft is integrally formed, and the through shaft also forms the motor shaft of the hub motor. The hub motor includes an anti-rotation positioning piece located at its center, an anti-rotation positioning hole is provided on the anti-rotation positioning piece, and the through shaft is inserted into the anti-rotation positioning hole. The through shaft is also provided with an anti-slip screw, and the anti-slip screw is located on the side of the hub motor away from the through shaft.

[0024] The beneficial effects of the two-wheeled electric balancing vehicle of the utility model are as follows: the vehicle shell is fixed to the through-axle, and the left and right pedal assemblies swing back and forth relative to the through-axle and the vehicle shell; the left and right pedal assemblies swing, but the vehicle shell does not swing; the pedal assemblies are installed on the through-axle without the need for an additional frame; the left and right pedal assemblies are provided with swing grooves, and a limiting piece is fixed on the through-axle, and the front and rear swing angle limitation of the pedal assembly is achieved through the cooperation of the swing groove and the limiting piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional structural schematic diagram of a two-wheeled electric balancing vehicle according to a first embodiment of the utility model.

[0026] Figure 2 It is a cross-sectional view of a two-wheeled electric balancing vehicle according to a first embodiment of the utility model.

[0027] Figure 3 It is an exploded view of the two-wheeled electric balancing vehicle according to the first embodiment of the utility model.

[0028] Figure 4 It is a structural schematic diagram of the vehicle shell of a two-wheeled electric balancing vehicle according to the first embodiment of the utility model.

[0029] Figure 5 It is a structural schematic diagram of a pedal assembly of a two-wheeled electric balancing vehicle according to a first embodiment of the utility model.

[0030] In the figure, 1. wheel;

[0031] 2. Through shaft;

[0032] 3. Car shell; 31. Upper shell; 32. Lower shell; 33. Pedal groove; 34. Spring groove;

[0033] 4. pedal assembly; 41. upper plate; 42. lower plate; 43. limit groove; 44. guide groove;

[0034] 5. Sensor;

[0035] 6. Limiting parts;

[0036] 7. Detection switch;

[0037] 8. Compression spring;

[0038] 9. Soft cushion. DETAILED DESCRIPTION

[0039] The technical solutions of the embodiments of the present invention are explained and described below, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation mode, other embodiments obtained by those skilled in the art without creative work are all within the protection scope of the present invention.

[0040] See also Figures 1 to 5 The two-wheeled electric balancing vehicle of the first embodiment of the utility model comprises:

[0041] The left and right wheels 1 each include a hub motor;

[0042] A through shaft 2, both ends of which are fixedly connected to the hub motors of the left and right wheels 1;

[0043] The vehicle shell 3 is fixed relative to the through shaft 2 and is provided with left and right pedal grooves 33;

[0044] The left and right pedal assemblies 4 are sleeved on the through shaft 2, located in the pedal groove 33, and swing forward and backward relative to the through shaft 2 and the vehicle shell 3;

[0045] A sensor 5 for detecting the front and rear tilt angles of the left and right pedal assemblies 4;

[0046] The left and right pedal assemblies 4 are both provided with a swinging groove, in which a limiter 6 is provided. The limiter 6 is fixedly connected to the through shaft 2 , and the limiter 6 cooperates with the positioning groove to limit the front and rear swinging angle of the pedal assembly 4 .

[0047] In this embodiment, the pedal assembly 4 can be raised and lowered relative to the through shaft 2, and the two-wheeled electric balancing vehicle includes a detection switch 7 for detecting the height of the pedal assembly 4. The detection switch 7 can detect whether a person stands on the pedal. The detection switch 7 can be set at only one of the pedal assemblies 4, or at both of the pedal assemblies 4.

[0048] In this embodiment, the detection switch 7 is a micro switch. In other embodiments, the detection switch 7 can also be a switch of other types such as a proximity switch lamp.

[0049] In this embodiment, the pedal assembly 4 forms a guide groove 44 in the height direction. The guide groove 44 is oval in shape, and the size of the guide groove 44 is adapted to the size of the through shaft 2 .

[0050] In this embodiment, the pedal assembly 4 includes an upper plate 41 and a lower plate 42 fixed by screws, the upper plate 41 forms an upper groove, the lower plate 42 forms a lower groove, and the upper groove and the lower groove enclose each other to form the guide groove 44.

[0051] In this embodiment, the upper plate 41 includes a flat plate portion on the upper side and a slotted portion with an opening facing downward, and the lower plate 42 includes a slotted portion with an opening facing upward. The upper slot of the upper plate 41 and / or the lower slot of the lower plate 42 include a semicircular segment and a straight line segment, so that the upper slot and the lower slot enclose a guide slot 44 in an oblong shape. The center of the flat plate portion is concave to form an inner groove.

[0052] In this embodiment, the two-wheeled electric balancing vehicle further includes a compression spring 8 for raising the pedal assembly 4, and there are four compression springs 8 at the left and right pedal assemblies 4. The compression spring 8 enables the pedal assembly 4 to automatically and reliably reset when no one is standing.

[0053] In this embodiment, a spring groove 34 is formed on the bottom surface of the pedal groove 33 of the vehicle shell 3 , and the compression spring 8 is located in the spring groove 34 .

[0054] In this embodiment, the pedal groove 33 of the vehicle shell 3 includes an upper groove for accommodating the pedal assembly 4 and a lower groove for the pedal assembly 4 to pass through. The spring groove 34 is formed on the bottom wall of the upper groove, and the size of the upper groove is larger than that of the lower groove.

[0055] In this embodiment, the position-limiting member 6 cooperates with the positioning groove to position the pedal assembly 4 in the axial direction. In other embodiments, the pedal assembly 4 can also be positioned in the axial direction through the pedal groove 33 .

[0056] In this embodiment, the limiting member 6 is a hexagon socket head screw, the swing groove is oval in shape, and the size of the cap of the hexagon socket head screw is adapted to the axial size of the swing groove along the through shaft 2.

[0057] In this embodiment, the limiting member 6 is a screw, and the limiting member 6 is threadedly connected to the through shaft 2, or the limiting member 6 is welded to the through shaft 2.

[0058] In this embodiment, a whole soft cushion 9 is provided above the vehicle shell 3 , and the soft cushion 9 covers both the left and right pedal assemblies 4 .

[0059] In this embodiment, the through shaft 2 is integrally formed, and the through shaft 2 also forms the motor shaft of the hub motor. The hub motor includes an anti-rotation positioning piece located at the center thereof, and an anti-rotation positioning hole is provided on the anti-rotation positioning piece. The through shaft 2 is inserted into the anti-rotation positioning hole. The through shaft 2 is also provided with an anti-slip screw, and the anti-slip screw is located on the side of the hub motor away from the through shaft 2.

[0060] In this embodiment, the vehicle shell 3 includes an upper shell 31 and a lower shell 32. The connection structure between the upper shell 31, the lower shell 32 and the through shaft 2 can refer to the prior art, such as being fixed by the same set of screws.

[0061] In this embodiment, the vehicle shell 3 is provided with operating parts such as a power switch. The vehicle shell 3 is provided with components such as a controller and a battery. The controller controls the left and right wheel hub motors according to the signal sent by the sensor 5.

[0062] The working principle of the two-wheeled electric balancing vehicle of the present embodiment is as follows: when no one is standing, under the action of the compression spring 8, the lower semicircle of the oval guide groove 44 of the pedal assembly 4 abuts against the through shaft 2, and the pedal assembly 4 is in a higher position. Since the vehicle shell 3 is fixed to the through shaft 2, the vehicle shell 3 and the pedal will not tilt forward and backward before getting on the vehicle, and it is relatively easy to get on the vehicle; when driving is required, after the power is turned on, the soft pad 9 above the pedal assembly 4 is stepped on, and under the action of human body gravity and the guidance of the guide groove 44, the pedal assembly 4 is lowered until the upper semicircle of the oval guide groove 44 abuts against the through shaft 2, and when the pedal assembly 4 is lowered into place, the detection switch 7 is triggered, at this time, the pedal assembly 4 is swung back and forth, and the sensor 5 detects the front and rear tilt angle of the pedal assembly 4. The controller controls the left and right wheel hub motors according to the front and rear tilt angle detected by the sensor 5, so as to realize the forward, backward and turning of the two-wheeled electric balancing vehicle; in the process group of manipulating the pedal assembly 4, the limiter 6 limits the front and rear swing angle of the pedal assembly 4, and the limiter 6 also positions the axial direction of the pedal assembly 4.

[0063] The beneficial effects of the two-wheeled electric balancing vehicle of the first embodiment of the utility model are as follows: the vehicle shell 3 is fixed to the through shaft 2, and the left and right pedal assemblies 4 swing back and forth relative to the through shaft 2 and the vehicle shell 3. The left and right pedal assemblies 4 swing, but the vehicle shell 3 does not swing; the pedal assembly 4 is installed on the through shaft 2, and no additional skeleton is required; the left and right pedal assemblies 4 are provided with swinging grooves, and the through shaft 2 is fixed with a limiting piece 6, and the front and rear swinging angle limit of the pedal assembly 4 is achieved by the cooperation of the swinging groove and the limiting piece 6; the vehicle shell 3 is fixed to the through shaft 2, and the vehicle shell 3 and the pedals will not tilt back and forth before getting on the vehicle, so getting on the vehicle is relatively easy.

[0064] The above is only a specific implementation of the invention, but the protection scope of the invention is not limited thereto. Those skilled in the art should understand that the invention includes but is not limited to the contents described in the above specific implementation. Any modification that does not deviate from the functional and structural principles of the invention will be included in the scope of the claims.

Claims

1. Two-wheeled electric balancing vehicle, characterized by: The two-wheeled electric balancing vehicle comprises: The left and right wheels (1) both include wheel hub motors; A through shaft (2), both ends of which are respectively fixedly connected to the hub motors of the left and right wheels (1); The vehicle shell (3) is fixed relative to the through shaft (2) and is provided with left and right pedal grooves (33); The left and right pedal assemblies (4) are sleeved on the through shaft (2), located in the pedal groove (33), and swing back and forth relative to the through shaft (2) and the vehicle shell (3); A sensor (5) for detecting the front and rear tilt angles of the left and right pedal assemblies (4); Wherein, the left and right pedal assemblies (4) are both provided with a swinging groove, a limiting member (6) is provided in the swinging groove, the limiting member (6) is fixedly connected to the through shaft (2), and the limiting member (6) cooperates with the positioning groove to limit the front and rear swinging angle of the pedal assembly (4).

2. The two-wheeled electric balancing vehicle according to claim 1, characterized in that: The pedal assembly (4) can be raised and lowered relative to the through shaft (2); the two-wheeled electric balancing vehicle comprises a detection switch (7) for detecting the height of the pedal assembly (4); and the two-wheeled electric balancing vehicle also comprises a compression spring (8) for raising the pedal assembly (4).

3. The two-wheeled electric balancing vehicle according to claim 2, characterized in that: The detection switch (7) is a micro switch; the pedal assembly (4) forms a guide groove (44) in the height direction, the guide groove (44) is oval in shape, and the size of the guide groove (44) is adapted to the size of the through shaft (2).

4. The two-wheeled electric balancing vehicle according to claim 3, characterized in that: The pedal assembly (4) comprises an upper plate (41) and a lower plate (42) fixedly connected by screws, the upper plate (41) forms an upper groove, the lower plate (42) forms a lower groove, and the upper groove and the lower groove enclose each other to form the guide groove (44).

5. The two-wheeled electric balancing vehicle according to claim 2, characterized in that: The bottom surface of the pedal groove (33) of the vehicle shell (3) forms a spring groove (34), and the compression spring (8) is located in the spring groove (34); there are four compression springs (8).

6. The two-wheeled electric balancing vehicle according to claim 1, characterized in that: The limiting member (6) cooperates with the positioning groove to position the pedal assembly (4) in the axial direction, and / or the pedal groove (33) positions the pedal assembly (4) in the axial direction.

7. The two-wheeled electric balancing vehicle according to claim 6, characterized in that: The limiting member (6) is a hexagon socket head screw, the swing groove is oval in shape, and the size of the cap of the hexagon socket head screw matches the size of the swing groove along the axial direction of the through shaft (2).

8. The two-wheeled electric balancing vehicle according to claim 1, characterized in that: The limiting member (6) is a screw, and the limiting member (6) is threadedly connected to the through shaft (2), or the limiting member (6) is welded to the through shaft (2).

9. The two-wheeled electric balancing vehicle according to claim 1, characterized in that: A whole soft cushion (9) is arranged above the vehicle shell (3), and the soft cushion (9) covers both the left and right pedal assemblies (4).

10. The two-wheeled electric balancing vehicle according to claim 1, characterized in that: The through shaft (2) is integrally formed, and the through shaft (2) also forms the motor shaft of the wheel hub motor. The wheel hub motor comprises an anti-rotation positioning piece located at the center thereof, an anti-rotation positioning hole is provided on the anti-rotation positioning piece, and the through shaft (2) is inserted into the anti-rotation positioning hole. The through shaft (2) is also provided with an anti-slipping screw, and the anti-slipping screw is located on the side of the wheel hub motor away from the through shaft (2).

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