Electric folding scooter

Abstract

The electric folding scooter comprises a scooter head assembly, one end of the scooter head assembly is hinged to a pedal assembly, and the other end of the scooter head assembly is hinged to a pull rod assembly; the protruding part of the pedal assembly is hinged to the rear frame assembly, and the extending part of the pedal assembly is hinged to the auxiliary beam assembly. The pull rod assembly is hinged to the rear frame assembly, and the bending structure is hinged to the swing rod assembly. The rear frame assembly is hinged to the main beam assembly, the main beam assembly is hinged to the seat plate, the main beam assembly is hinged to the auxiliary beam assembly, the auxiliary beam assembly is hinged to the auxiliary rod, and the auxiliary rod is hinged to the seat plate. The swing rod assembly is hinged to the connecting rod which is hinged to the driving plate. A locking cam is arranged on the rear frame assembly, a pedal assembly fixes a motor support and is provided with a motor, and a motor output shaft fixes a driving plate; a locking pin is fixed to the swing rod assembly, and the locking cam is provided with a folding movement curved surface. And the locking pin moves along the folding movement curved surface. The electric push rod locking device is provided with an independent locking structure, can directly lock the folding and unfolding positions of the scooter, and does not depend on the self-locking property of the electric push rod.

Description

TECHNICAL FIELD

[0001] The present application relates to a folding vehicle, in particular to an electric folding scooter. BACKGROUND

[0002] At present, the electric folding scooter mostly adopts the design of directly driving the whole vehicle folding structure by the electric push rod, and the self-locking property of the electric push rod is used to replace the locking mechanism for folding and unfolding to the position. The scooter with this structure needs to bear impact load when passing through a ditch or a threshold, and under the long-term effect, the fatigue fracture of the force receiving parts such as the screw rod and nut inside the push rod is accelerated, and the service life of the folding part is shortened. SUMMARY

[0003] The purpose of the present application is to provide an electric folding scooter with an independent locking structure, which can directly lock the folding and unfolding positions of the scooter and can be realized without relying on the self-locking property of the electric push rod.

[0004] Technical scheme: The electric folding scooter of the present application comprises a vehicle head assembly, one end of which is hingedly connected with one end of a pedal assembly, and the other end is hingedly connected with one end of a pull rod assembly; the pedal assembly is extended in the length direction in the upper half of the end, forming an extension part, and the end of the extension part of the pedal assembly is hingedly connected with one end of a secondary beam assembly; the end of the pedal assembly is hingedly connected with one end of a rear vehicle frame assembly through a connecting piece; the middle of the pull rod assembly is hingedly connected with one end of the rear vehicle frame assembly, and the other end of the pull rod assembly is hingedly connected with one end of a swing rod assembly; the other end of the rear vehicle frame assembly is hingedly connected with one end of a main beam assembly, the other end of the main beam assembly is hingedly connected with one end of a seat plate, the middle of the main beam assembly is hingedly connected with the middle of the secondary beam assembly, the other end of the secondary beam assembly is hingedly connected with one end of an auxiliary rod, and the other end of the auxiliary rod is hingedly connected with the other end of the seat plate; the other end of the swing rod assembly is hingedly connected with one end of a connecting rod, and the other end of the connecting rod is hingedly connected with a driving plate; a locking cam is fixed on the rear vehicle frame assembly, a motor support is fixed on the extension part of the pedal assembly, a motor is fixed on the motor support, and a driving plate is fixed on the output shaft of the motor; a locking pin is fixed on the swing rod assembly, and the locking cam and the locking pin form a locking structure, the locking cam has a folding motion curved surface, and the side surface of the locking pin is fitted with the folding motion curved surface; the motor drives the driving plate to rotate, the driving plate drives the locking pin to move along the folding motion curved surface of the locking cam through the connecting rod and the swing rod assembly, and the unfolding and folding of the folding scooter are realized by controlling the movement direction of the locking pin.

[0005] Further, a folding position locking groove is formed on the left side of the locking cam, and an unfolding position locking groove is formed on the right side of the locking cam.

[0006] Further, when the locking pin moves along the folding motion curved surface towards the unfolding position locking groove, the folding scooter is unfolded; and when the locking pin moves along the folding motion curved surface towards the folding position locking groove, the folding scooter is folded.

[0007] Further, the folding scooter realizes unfolding locking after the locking pin enters the unfolding position locking groove, and realizes folding locking after the locking pin enters the folding position locking groove.

[0008] Further, the pull rod assembly is fixed with a stop pin at the end, and the stop pin is used for restricting the movement of the locking pin, so that the locking pin can only move along the folding movement curved surface.

[0009] Further, the front wheel assembly has two groups, and the two groups of front wheel assemblies are rotationally connected to the inner sides of the two front wheels.

[0010] Further, the pedal assembly has two groups and is parallel to each other, and the two groups of pedal assemblies are fixedly connected through connecting rods.

[0011] Further, the extension part of each group of pedal assemblies is fixedly installed with a motor support on the inner side, and a motor is fixedly installed between the two motor supports, and the motor has two output shafts, each of which is fixedly installed with a driving plate, and the motor drives the two driving plates to move synchronously.

[0012] Further, the extension part of each group of pedal assemblies is fixedly installed with a motor support on the inner side, and a motor is fixedly installed between the two motor supports, and the motor has two output shafts, each of which is fixedly installed with a driving plate, and the motor drives the two driving plates to move synchronously.

[0013] Further, the rear frame assembly has two groups and is parallel to each other, and the two groups of rear frame assemblies are fixedly connected through connecting rods.

[0014] Beneficial effects: compared with the prior art, the significant technical effects of the present application are as follows: (1) the present application has an independent locking structure, which can directly lock the folding and unfolding positions of the scooter, and does not depend on the self-locking property of the electric push rod; the motor does not bear any impact load; (2) the folding scooter realizes unfolding locking after the locking pin enters the unfolding position locking groove, and realizes folding locking after the locking pin enters the folding position locking groove. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a front view of a simplified model of the electric folding scooter in the folding process;

[0016] Figure 2 is a front view of a simplified model of the electric folding scooter in the folding process; Figure 1 is a front view of a simplified model of the electric folding scooter in the folding process;

[0017] Figure 3 is a front view of a simplified model of the electric folding scooter in the folding process;

[0018] Figure 4 is a front view of a simplified model of the electric folding scooter in the folding process; Figure 3 is a front view of a simplified model of the electric folding scooter in the folding process;

[0019] Figure 5 This is a rear view of the simplified model of the present invention during the folding process;

[0020] Figure 6 for Figure 5 Enlarged view of a section at point II;

[0021] Figure 7 This is a simplified structural diagram of the locking cam in the model of this invention;

[0022] Figure 8 This is a simplified front view of the model of the present invention in its unfolded position;

[0023] Figure 9 for Figure 8 Enlarged view of a section at point III;

[0024] Figure 10 This is a simplified front view of the model of the present invention at the folded position;

[0025] Figure 11 for Figure 10 A magnified view of a section at point IV. Detailed Implementation

[0026] The technical solution of the present invention will now be described in detail with reference to specific embodiments and accompanying drawings.

[0027] like Figures 1 to 11 As shown, the present invention relates to an electric folding mobility scooter, specifically involving the following components: a front assembly 1, a pedal assembly 2, a pull rod assembly 3, a rear frame assembly 4, a main beam assembly 5, a sub-beam assembly 6, an auxiliary rod 7, a seat 8, a motor 9, a drive plate 10, a connecting rod 11, a swing arm assembly 12, a locking cam 13, an unfolded position locking groove 131, a folding motion curved surface 132, a folding position locking groove 133, a first pin 14, a second pin 15, a third pin 16, a fourth pin 17, a fifth pin 18, a sixth pin 19, a seventh pin 20, a ninth pin 21, a tenth pin 22, an eleventh pin 23, a twelfth pin 24, a thirteenth pin 25, a fourteenth pin 26, and a motor bracket 27.

[0028] like Figure 1 and Figure 2As shown, one end of the front assembly 1 is hinged to one end of the pedal assembly 2 via a first pin 14, and the other end is hinged to one end of the pull rod assembly 3 via a second pin 15. The upper half of the end of the pedal assembly 2 extends along the length direction to form an extension, and the end of the extension of the pedal assembly 2 is hinged to one end of the sub-beam assembly 6 via a fifth pin 18. The end of the pedal assembly 2 is hinged to one end of the rear frame assembly 4 via a connector and a third pin 16. The middle of the pull rod assembly 3 is hinged to one end of the rear frame assembly 4 via a fourth pin 17, and the other end of the pull rod assembly 3 is hinged to one end of the swing arm assembly 12 via a twelfth pin 24. In this embodiment, a stop pin 31 is fixed to the end of the pull rod assembly 3. The stop pin 31 is used to constrain the movement of the locking pin 121, so that the locking pin 121 can only move along the folding motion surface 132. The other end of the rear frame assembly 4 is hinged to one end of the main beam assembly 5 via the sixth pin 19, and the other end of the main beam assembly 5 is hinged to one end of the seat plate 8 via the seventh pin 20. The middle of the main beam assembly 5 is hinged to the middle of the sub-beam assembly 6 via the ninth pin 21, and the other end of the sub-beam assembly 6 is hinged to one end of the auxiliary rod 7 via the eleventh pin 23. The other end of the auxiliary rod 7 is hinged to the other end of the seat plate 8 via the tenth pin 22. The other end of the swing arm assembly 12 is hinged to one end of the connecting rod 11 via the thirteenth pin 25, and the other end of the connecting rod 11 is hinged to the drive plate 10 via the fourteenth pin 26. There are two sets of front-end assemblies 1, which are rotatably connected to the inner sides of the two front wheels; there are two sets of main beam assemblies 5, which are rotatably connected to the inner sides of the two rear wheels. There are two sets of pedal assemblies 2, which are parallel to each other and are fixedly connected to each other by a connecting rod. A motor bracket 27 is fixedly installed inside the extension of each pedal assembly 2. A motor 9 is fixedly installed between two motor brackets 27. The motor 9 has two output shafts, and a drive plate 10 is fixed on each output shaft. The motor 9 drives the two drive plates 10 to move synchronously. The end of the extension of each pedal assembly 2 is hinged to a sub-beam assembly 6. There are two rear frame assemblies 4, which are parallel to each other and are fixedly connected to each other by a connecting rod.

[0029] A locking cam 13 is fixed on the rear frame assembly 4. A motor bracket 27 is fixed on the extension of the pedal assembly 2. A motor 9 is fixed on the motor bracket 27. A drive plate 10 is fixed on the output shaft of the motor 9. A locking pin 121 is fixed on the rocker arm assembly 12. The locking cam 13 and the locking pin 121 form a locking structure.

[0030] like Figure 4 and Figure 7As shown, the locking cam 13 includes an unfolded position locking groove 131, a folding motion surface 132, and a folding position locking groove 133. The folding position locking groove 133 is located on the left side of the locking cam 13, and the unfolded position locking groove 131 is located on the right side. The folding position locking groove 133 and the unfolded position locking groove 131 are connected by the folding motion surface 132. The side of the locking pin 121 is in contact with the folding motion surface 132.

[0031] Motor 9 drives drive plate 10 to rotate. Drive plate 10, through connecting rod 11 and swing rod assembly 12, drives locking pin 121 to move along the folding motion surface 132 of locking cam 13. By controlling the movement direction of locking pin 121, the unfolding and folding of the folding mobility scooter are achieved. Specifically: when locking pin 121 moves along folding motion surface 132 toward unfolding position locking groove 131, the folding mobility scooter unfolds; when locking pin 121 moves along folding motion surface 132 toward folding position locking groove 133, the folding mobility scooter folds. When locking pin 121 enters unfolding position locking groove 131, the folding mobility scooter achieves unfolding and locking, as shown below. Figure 6 and Figure 7 As shown. When the locking pin 121 enters the locking slot 133 at the folding position, the folding mobility scooter achieves folding and locking, as shown. Figure 10 and Figure 11 As shown.

[0032] like Figure 7 , 8 As shown in Figure 9, in the unfolded and locked position of the mobility scooter, the motor 9 restricts the rotation of the drive plate 10, and the drive plate 10 restricts the left and right swing of the swing arm assembly 12 and the locking pin 121 through the connecting rod 11. A locking cam 13 is fixed on the rear frame assembly 4, and one end of the pull rod assembly 3 is hinged to the swing arm assembly 12 through the twelfth pin 24. A locking pin 121 is fixed on the swing arm assembly 12, and the locking pin 121 is locked in the locking groove 131 of the unfolded position of the locking cam 13. The locking cam 13 restricts the up and down movement of the locking pin 121, and the locking pin 121 restricts the up and down movement of the swing arm assembly 12. The swing arm assembly 12 then restricts the movement of one end of the pull rod assembly 3. The middle of the pull rod assembly 3 is hinged to the rear frame assembly 4 through the fourth pin 17, so that the rear frame assembly 4 and the pull rod assembly 3 are locked relative to each other and cannot move, thus completing the unfolding and locking action of the folding mobility scooter.

[0033] Unlocking and unfolding process: as follows Figures 2-7 As shown, the motor 9 drives the drive plate 10 to rotate clockwise, and the drive plate 10, through the connecting rod 11, drives the swing arm assembly 12 and the locking pin 121 to swing to the right around the twelfth pin shaft 24. When the locking pin 121 disengages from the unfolded position locking groove 131 and reaches the folding motion surface 132, the unfolding and unlocking action of the folding mobility scooter is completed.

[0034] likeFigure 3 and 4 As shown, after the unfolding and unlocking action is completed, the motor 9 continues to drive the drive plate 10 to rotate clockwise. The drive plate 10 then drives the right end of the swing arm assembly 12 and the pull rod assembly 3 to move downward through the connecting rod 11. The middle of the pull rod assembly 3 is hinged to the rear frame assembly 4 through the fourth pin 17, which drives the rear frame assembly 4 to move in the folding direction. The locking pin 121 moves counterclockwise along the folding motion surface 132.

[0035] Because the left side of the locking pin 121 is restricted by the folding motion surface 132 of the locking cam 13, and the right side of the locking pin 121 is restricted by the stop pin 31 of the pull rod assembly 3, the locking pin 121 can only move along the folding motion surface 132. Since the pull rod assembly 3 is hinged to the rear frame assembly 4 through the pin 34 in the middle, and the locking cam 13 is rigidly connected to the rear frame assembly 4, the pull rod assembly 3 and the swing rod assembly 12 rotate around the locking cam 13 and the rear frame assembly 4 with the fourth pin 17 as the axis, driving the locking pin 121 to move towards the folding position locking groove 133 of the locking cam 13, that is, the locking pin 121 moves counterclockwise along the folding motion surface 132.

[0036] like Figure 7 , 10 As shown in Figure 11, when the locking pin 121 moves counterclockwise along the folding motion surface 132 to the folding position, the pull rod assembly 3 and the rear frame assembly 4 stop moving. The folding motor 9 continues to drive the drive plate 10 to rotate clockwise. The drive plate 10 then drives the swing rod assembly 12 and the locking pin 121 to swing downward around the twelfth pin shaft 24 through the connecting rod 11. When the locking pin 121 enters the folding position locking groove 133, the folding and locking action of the folding mobility scooter is completed.

[0037] In the folded and locked position of the folding mobility scooter, motor 9 restricts the rotation of drive plate 10, and drive plate 10 restricts the swing arm assembly 12 and locking pin 121 to swing up and down via connecting rod 11. Since locking cam 13 is fixed on rear frame assembly 4, one end of pull rod assembly 3 is hinged to swing arm assembly 12 via twelfth pin 24. Locking pin 121 is fixed on swing arm assembly 12. Locking pin 121 is locked in the folded position locking groove 133 of locking cam 13. Folded position locking groove 133 restricts the left and right movement of locking pin 121. Locking pin 121 restricts the left and right movement of swing arm assembly 12. Swing arm assembly 12 then restricts the movement of one end of pull rod assembly 3. Pull rod assembly 3 is hinged to rear frame assembly 4 via fourth pin 17 in the middle, so that rear frame assembly 4 and pull rod assembly 3 are locked relative to each other and cannot move, thus completing the locking of the entire vehicle.

Claims

1. A motorized folding scooter, characterized by: It comprises a front end assembly (1) which is hinged at one end to a pedal assembly (2) and at the other end to a pull rod assembly (3); The pedal assembly (2) has an extended part at the upper half of the end, which is hinged at the end to a sub-beam assembly (6); The pedal assembly (2) is hinged at the end to a rear frame assembly (4) through a connecting piece; The pull rod assembly (3) is hinged at the middle to the rear frame assembly (4) and at the other end to a swing rod assembly (12); The rear frame assembly (4) is hinged at the other end to a main beam assembly (5), which is hinged at the other end to a seat plate (8), hinged at the middle to the sub-beam assembly (6), hinged at the other end to an auxiliary rod (7), which is hinged at the other end to the seat plate (8); The swing rod assembly (12) is hinged at the other end to a connecting rod (11), which is hinged at the other end to a driving plate (10); The rear frame assembly (4) is fixed with a locking cam (13), the extended part of the pedal assembly (2) is fixed with a motor support (27), the motor support (27) is fixed with a motor (9), and the output shaft of the motor (9) is fixed with the driving plate (10); The swing rod assembly (12) is fixed with a locking pin (121), the locking cam (13) and the locking pin (121) form a locking structure, the locking cam (13) has a folding motion curve (132), and the side surface of the locking pin (121) is attached to the folding motion curve (132); The motor (9) drives the driving plate (10) to rotate, the driving plate (10) drives the locking pin (121) to move along the folding motion curve (132) of the locking cam (13) through the connecting rod (11) and the swing rod assembly (12), and the folding motion direction of the locking pin (121) is controlled to realize the unfolding and folding of the folding scooter.

2. The electric folding scooter of claim 1, wherein: The locking cam (13) is provided with a folding position locking groove (133) on the left side and an unfolding position locking groove (131) on the right side.

3. The electric folding scooter of claim 2, wherein: When the locking pin (121) moves along the folding motion curve (132) towards the unfolding position locking groove (131), the folding scooter is unfolded; When the locking pin (121) moves along the folding motion curve (132) towards the folding position locking groove (133), the folding scooter is folded.

4. The electric folding scooter of claim 2, wherein: When the locking pin (121) enters the unfolding position locking groove (131), the folding scooter is unfolded and locked; when the locking pin (121) enters the folding position locking groove (133), the folding scooter is folded and locked.

5. The electric folding scooter of claim 1, wherein: The pull rod assembly (3) is fixed at the end with a stop pin (31), which is used to constrain the movement of the locking pin (121) so that the locking pin (121) can only move along the folding motion curve (132).

6. The electric folding scooter of claim 1, wherein: The front head assembly (1) has two groups, and the two groups of front head assemblies (1) are rotatably connected to the inner sides of the two front wheels; the main beam assembly (5) has two groups, and the two groups of main beam assemblies (5) are rotatably connected to the inner sides of the two rear wheels.

7. The electric folding scooter of claim 1, wherein: The pedal assembly (2) has two groups, and is parallel to each other, and the two groups of pedal assemblies (2) are fixedly connected through connecting rods.

8. The electric folding scooter of claim 7, wherein: The inner side of the extension of each group of pedal assemblies (2) is fixedly provided with a motor support (27), and the two motor supports (27) are fixedly provided with a motor (9) therebetween, the motor (9) has two output shafts, each output shaft is fixedly provided with a driving plate (10), and the motor (9) drives the two driving plates (10) to move synchronously.

9. The electric folding scooter of claim 7, wherein: The extension of each group of pedal assemblies (2) is hingedly connected with a sub-beam assembly (6).

10. The electric folding scooter of claim 1, wherein: The rear frame assembly (4) has two groups, and is parallel to each other, and the two groups of rear frame assemblies (4) are fixedly connected through connecting rods.

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