A human-powered land skateboard

Abstract

The present application relates to the technical field of transport tools, more specifically, it relates to a manned flat ground scooter, including a vehicle body, a frame and a load plate, the vehicle body includes a front head, a waist and a tail connected in sequence, the left and right sides of the front head are provided with front wheels, the bottom of the waist is provided with a universal wheel, the left and right sides of the tail are provided with rear wheels, the frame is connected to the front head, the frame and the front head are provided with a load plate, the tail is used for carrying people, the waist and the tail are connected horizontally, two plug-in positions are arranged between the tail and the waist around the rotating direction, a pressing unlocking mechanism is arranged on the waist, and the pressing unlocking mechanism is used for unlocking the plug-in state between the tail and the waist, the manned flat ground scooter can switch between the two modes of carrying people and hand pushing transportation, so as to flexibly adjust according to the actual application scene.

Description

Technical Field

[0001] This invention relates to the field of transportation technology, and in particular to a passenger-carrying flat-ground scooter. Background Technology

[0002] Currently, workers still frequently use handcarts for auxiliary transportation when moving goods. With continuous improvements in handcart design, they now include two types: unmanned and manned handcarts. Unmanned handcarts are advantageous because they are small in size, easy to operate, and often do not require additional power. However, they have limited transport capacity and are only suitable for moving light items. Manned handcarts, on the other hand, can carry more and heavier items and are more comfortable to use. However, they are larger in size, inconvenient to store, and not suitable for use in narrow spaces. To address this, the inventors designed a manned flat-surface scooter that can switch between manned and hand-pushed transport modes, allowing for flexible adjustments based on actual application scenarios. Summary of the Invention

[0003] In order to switch between passenger transport and hand-push transport modes, this application provides a passenger-carrying flat-ground scooter.

[0004] The present invention provides a passenger-carrying flat-ground scooter with the following technical solution:

[0005] A passenger-carrying flat-ground scooter includes a body, a frame, and a carrying platform. The body includes a front end, a waist, and a rear end connected sequentially. Front wheels are located on the left and right sides of the front end, swivel wheels are located at the bottom of the waist, and rear wheels are located on the left and right sides of the rear end. The frame is connected to the front end, and a carrying platform is located between the frame and the front end. The rear end is used to carry a passenger. The waist and the rear end are rotatably connected around a horizontal axis. Two insertion positions are provided between the rear end and the waist in the direction of rotation. A press-to-unlock mechanism is provided on the waist for unlocking the insertion state between the rear end and the waist.

[0006] Preferably, the waist is provided with a horizontal second pivot, and the rear of the vehicle and the waist are rotatably connected around the horizontal axis through the second pivot. The second pivot is fixedly fitted with a rotating fixing block, and the rotating fixing block has two third slots opened around the axis. The two third slots are located on the rear side of the rotating fixing block and are distributed vertically. A pin is slidably provided inside the waist. The pin slides relative to the outer wall of the rotating fixing block and is used to insert into either of the third slots. The press-to-unlock mechanism is connected to the pin and controls the sliding of the pin.

[0007] Preferably, the press-to-unlock mechanism includes a pedal, a third torsion spring, and a connecting rod. The middle part of the pedal is hinged to the vehicle body, the connecting rod is movably connected between the pin and the front half of the pedal, and the third torsion spring is connected between the pedal and the vehicle body. The third torsion spring causes the pedal to automatically control the pin to insert into the third slot.

[0008] Preferably, the third slot tapers from the outside in.

[0009] Preferably, the outer wall of the rotating fixing block is provided with a stop bar, the stop bar is located above the upper third slot, the top of the vehicle waist is provided with a clearance opening, the top of the vehicle front is provided with a limit notch, and the clearance opening and the limit notch are located sequentially on the upward swing path of the stop bar.

[0010] Preferably, the frame is tilted backward and connected to the front of the vehicle, the lower half of the cargo tray is hinged to the front of the vehicle on both sides, and the upper half of the cargo tray is provided with a plug-in structure and a lifting and unlocking mechanism between the upper half of the cargo tray and the frame on both sides.

[0011] Preferably, the upper half of the cargo plate is provided with first spring pins on both the left and right sides, and the frame has two first insertion holes for corresponding insertion with the two first spring pins; the lifting unlocking mechanism includes an unlocking handle, a first torsion spring and a steel wire rope, the unlocking handle is embedded in the front of the cargo plate and is hinged to the cargo plate, the first torsion spring is hinged between the unlocking handle and the cargo plate, the first torsion spring controls the unlocking handle to automatically retract and reset, the steel wire rope is connected between the unlocking handle and the first spring pin, and the first spring pin leaves the first insertion hole as the unlocking handle is lifted.

[0012] Preferably, the upper and lower ends of the carrying plate are provided with baffles, the baffle at the upper end of the carrying plate is the upper baffle, and the baffle at the lower end of the carrying plate is the lower baffle. The left and right ends of the baffles are provided with second spring pins. The carrying plate has two second insertion holes corresponding to each second spring pin. When the baffle is in the unfolded state, the second spring pin is connected to one of the second insertion holes. When the baffle is in the folded state, the second spring pin is connected to the other second insertion hole.

[0013] Preferably, the vehicle front includes a mounting frame and a drive axle connected vertically. The front wheels are connected to the left and right sides of the drive axle. The mounting frame is provided with a vertical first rotating shaft. The mounting frame and the front end of the vehicle waist are vertically rotatably connected through the first rotating shaft. A sleeve is provided at the front end of the vehicle waist. The sleeve is arranged around the first rotating shaft. The front end of the sleeve has a toothed section around the axis. A pinion is vertically rotatably provided on the mounting frame. The pinion meshes with the toothed section of the sleeve to control the steering range of the vehicle front.

[0014] Preferably, a second torsion spring is provided inside the sleeve, with both ends of the second torsion spring extending outside the sleeve and located on the left-turning path and the right-turning path of the mounting bracket, respectively.

[0015] The beneficial effects of this invention are as follows:

[0016] 1. By designing the rear of the vehicle to be able to unfold or fold relative to the frame, the passenger-carrying flat scooter of the present invention can be flexibly adjusted in both passenger transport and hand-push transport modes to adapt to different transport situations and meet different transport needs.

[0017] 2. When using the flat-bottomed scooter of the present invention to transport goods, the state of the carrying platform can be flexibly adjusted according to different types of goods to achieve better transportation results.

[0018] 3. By adjusting the length of the toothed section and the meshing position between the toothed section and the pinion, the steering range of the cab can be controlled. In addition, after the operator completes the steering of the cab, the cab can automatically straighten under the action of the second torsion spring, achieving the effect of the cab quickly returning to center. Attached Figure Description

[0019] Figure 1 This is a front structural diagram of the manned flat-ground scooter in the embodiments of this application;

[0020] Figure 2 This is a rear structural diagram of the manned flat-ground scooter in the embodiments of this application;

[0021] Figure 3 This is a rear structural diagram of the carrier plate in the embodiments of this application;

[0022] Figure 4 This is a structural diagram of the pull-to-unlock mechanism in the embodiments of this application;

[0023] Figure 5 This is an exploded view of the structure between the mounting bracket at the front of the vehicle and the waist of the vehicle in an embodiment of this application;

[0024] Figure 6 yes Figure 5 Another perspective view;

[0025] Figure 7 This is a diagram showing the connection structure between the waist and rear of the vehicle in an embodiment of this application;

[0026] Figure 8 This is a cross-sectional view of the structure between the waist and rear of the vehicle in an embodiment of this application;

[0027] Figure 9 This is a diagram illustrating the folding process of a passenger-carrying flat-ground scooter in an embodiment of this application;

[0028] Figure 10 This is a diagram showing the idle state of a passenger-carrying flat-ground scooter in an embodiment of this application.

[0029] Explanation of reference numerals in the attached drawings: 1. Frame; 2. Cargo plate; 21. Unlock handle; 22. First torsion spring; 23. Steel wire rope; 24. Conduit; 25. Cap; 26. First spring pin; 27. Baffle; 28. Second spring pin; 29. ​​Second insertion hole; 3. Front of the vehicle; 31. Mounting bracket; 311. First pivot shaft; 312. Pinion; 32. Drive axle; 321. Front wheel; 33. Limiting notch; 4. Waist; 41. Caster wheel; 42. Sleeve; 43. Toothed section; 44. Second torsion spring; 45. Pedal; 46. Third torsion spring; 47. Linkage rod; 48. Pin; 49. Clearance opening; 5. Rear of the vehicle; 51. Rear wheel; 52. Rotating fixing block; 53. Third slot; 54. Stop lever. Detailed Implementation

[0030] The following will be combined with the appendix Figure 1-10 The present invention will be further illustrated by the embodiments.

[0031] This embodiment discloses a manned flat-ground scooter.

[0032] Reference Figure 1 and Figure 2 The passenger-carrying flat scooter includes an electric body and a frame 1 that is tilted back and connected to the front of the body. The body is for people to stand on, and the upper part of the frame 1 is equipped with a throttle for controlling the movement of the electric body, so that the operator can control the passenger-carrying flat scooter to move by standing on the body and twisting the throttle.

[0033] Reference Figure 1 and Figure 2The vehicle frame 1 is equipped with a cargo tray 2, which is mounted on the front of the vehicle body and swings up and down, allowing the cargo tray 2 to be in a tilted and flat position. Specifically, the lower half of the cargo tray 2 is hinged to the left and right sides of the vehicle body, and the upper half of the cargo tray 2 is connected to the frame 1 via a plug-in structure and a lifting and unlocking mechanism. When the cargo tray 2 needs to be adjusted to the tilted position, the operator lifts the cargo tray 2 upwards and plugs it into the frame 1 to lock it in place. At this time, the goods can be placed on the cargo tray 2 in a tilted position for transportation. When the cargo tray 2 needs to be adjusted to the flat position, the operator unlocks the cargo tray 2 and lowers it downwards, so that the cargo tray 2 is horizontally attached to the vehicle body. At this time, the goods can be placed on the cargo tray 2 in a horizontal position for transportation. Therefore, when using the flat-bottomed scooter of this invention to transport goods, the state of the cargo tray 2 can be flexibly adjusted according to different types of goods to achieve better transportation results.

[0034] Reference Figures 1 to 4 To facilitate the connection between the cargo tray 2 and the frame 1, first spring pins 26 are provided on the left and right sides of the upper half of the cargo tray 2. The first spring pins 26 are located on the back of the cargo tray 2. The frame 1 has a first insertion hole corresponding to each first spring pin 26. The cargo tray 2 maintains a stable backward tilt state through the connection between the first spring pin 26 and the first insertion hole. The lifting unlocking mechanism includes an unlocking handle 21, a first torsion spring 22, and a steel wire rope 23. The unlocking handle 21 is embedded in the front of the cargo tray 2 and is hinged to the cargo tray 2. The first torsion spring 22 is hinged between the unlocking handle 21 and the cargo tray 2 and controls the unlocking handle 21 to automatically retract and reset. The steel wire rope 23 is connected between the unlocking handle 21 and the first spring pin 26. The first spring pin 26 leaves the first insertion hole as the unlocking handle 21 is lifted. Based on the design of the unlocking mechanism described above, when it is necessary to unlock the connection between the cargo plate 2 and the frame 1, the operator only needs to lift the unlocking handle 21. The unlocking handle 21 will automatically retract and reset under the force of the first torsion spring 22 after the operator releases the handle, achieving a convenient unlocking effect. In addition, the unlocking structure also includes a guide tube 24 and a cap 25 located on the back of the cargo plate 2 and connected to each other. The guide tube and cap 25 allow the steel wire rope 23 inside the cargo plate 2 to pass through, guiding the tension direction of the steel wire rope 23.

[0035] Reference Figure 1 and Figure 3The upper and lower ends of the carrying plate 2 are both provided with baffles 27. The baffle 27 at the upper end of the carrying plate 2 serves as the upper baffle 27, and the baffle 27 at the lower end of the carrying plate 2 serves as the lower baffle 27. In order to enable the baffles 27 to be adjusted between the unfolded state and the folded state, the left and right ends of the baffles 27 are provided with second spring pins 28. The carrying plate 2 has two second insertion holes 29 corresponding to each second spring pin 28. When the baffle 27 is in the unfolded state, the second spring pin 28 is connected to one of the second insertion holes 29. When the baffle 27 is in the folded state, the second spring pin 28 is connected to the other second insertion hole 29. Furthermore, the insertion part of the second spring pin 28 is hemispherical. When the operator manually unfolds or folds the baffle 27, the second spring pin 28 will automatically disengage from one of the second insertion holes 29 until it aligns with the other second insertion hole 29 to achieve insertion. Based on the design of the baffle 27, the operator can flexibly adjust the upper baffle 27 or the lower baffle 27 to unfold or fold according to the state of the cargo platform 2 and other requirements, which can better meet the actual transportation needs. In addition, a buffer block is provided at the lower end of the cargo platform 2. The buffer block is made of cushioning material. During the lifting of the cargo platform 2, the buffer block contacts the lower end of the frame 1. On the one hand, the buffer block can limit the lifting angle of the cargo platform 2 to prevent the cargo platform from being lifted excessively. On the other hand, the buffer block can play a contact cushioning role, reducing abnormal noise and damage.

[0036] Reference Figure 1 The vehicle body includes a front end 3, a waist section 4, and a rear end 5 connected sequentially. The frame 1 is fixedly connected to the front end 3, and the cargo platform 2 is hinged to the front end 3. The front end 3 and the waist section 4 are rotatably connected around a horizontal axis. Front wheels 321, which are directional wheels, are located on the left and right sides of the front end 3. Rear wheels 51, which are also directional wheels, are located on the left and right sides of the rear end 5. When an operator stands on the rear end 5 to move the passenger-carrying flat-bottomed scooter, they can turn by rotating the angle between the front end 3 and the waist section 4. Furthermore, to facilitate the operator standing on the rear end 5, it is constructed of a skateboard. Moreover, the diameter of the front wheels 321 is larger than the diameter of the rear wheels 51. Since the cargo platform 2 is located at the front end 2, the larger front wheels 321 can better improve the load-bearing capacity at the front end 2.

[0037] Reference Figure 2 , Figure 5 and Figure 6The front of the vehicle 3 includes a mounting bracket 31 and a drive axle 32 connected vertically. The two front wheels 321 are specifically connected to the left and right sides of the drive axle 32. The mounting bracket 31 also serves as a connection between the frame 1 and the cargo platform 2. The mounting bracket 31 of the front of the vehicle 3 is provided with a vertical first pivot 311. The mounting bracket 31 and the front end of the waist 4 are vertically rotatably connected through the first pivot 311, that is, the front of the vehicle 3 and the waist 4 can swing left and right relative to each other. Furthermore, a sleeve 42 is provided at the front end of the waist 4, and the sleeve 42 is arranged around the first rotating shaft 311. The front end of the sleeve 42 has a toothed section 43 around the axis, and a pinion 312 is vertically rotatably arranged at the rear end of the mounting bracket 31 of the front end 3. The pinion 312 meshes with the toothed section 43 of the sleeve 42. Based on this, by adjusting the length of the toothed section 43 and the meshing position of the toothed section 43 and the pinion 312, the turning range of the front end 3 can be controlled. In this embodiment, the turning range of the front end 3 is 20° to both the left and right. Furthermore, a second torsion spring 44 is provided inside the sleeve 42. The two ends of the second torsion spring 44 extend out of the sleeve 42 and are located on the left turning path and the right turning path of the mounting bracket 31 of the front end 3, respectively. This allows the front end 3 to automatically straighten under the action of the second torsion spring 44 after the operator completes the turning, achieving the effect of the front end 3 quickly returning to center. In addition, the pinion is equipped with an angle sensor, and the passenger-carrying flat scooter reduces speed according to the rotation angle of the pinion, and the greater the rotation angle, the greater the speed reduction.

[0038] Reference Figure 7 and Figure 8 The front end of the rear end 5 curves upward and extends into the middle of the waist 4. A horizontal second pivot is fixedly installed between the left and right sides of the front end of the rear end 5. The front end of the rear end 5 and the middle of the waist 4 are connected by the second pivot to rotate around the horizontal axis, that is, the waist 4 and the rear end 5 can swing up and down relative to each other. Furthermore, a rotating fixing block 52 is fixedly sleeved on the second pivot. The rotating fixing block 52 has two third slots 53 opened around the axis, and the two third slots 53 are located on the rear side of the rotating fixing block 52 and are distributed vertically. A pin 48 is slidably installed inside the waist 4. The pin 48 slides relative to the outer wall of the rotating fixing block 52 and is used to insert into either of the third slots 53. A press-to-unlock mechanism is provided at the rear end of the vehicle waist 4. This mechanism includes a pedal 45, a third torsion spring 46, and a connecting rod 47. The middle of the pedal 45 is hinged to the rear end of the vehicle waist 4, and the hinge axis of the pedal 45 is parallel to the axis of the second rotating shaft. The two ends of the connecting rod 47 are rotatably connected to the rear end of the pin 48 and the front half of the pedal 45, respectively. The third torsion spring 46 connects the pedal 45 and the vehicle waist 4, and the third torsion spring 46 causes the pedal 45 to automatically control the pin 48 to insert into the third slot 53. Furthermore, a caster wheel 41 is provided at the bottom of the vehicle waist 4. Figure 9Based on the above design, the rear end 5 can be unfolded or folded relative to the frame 1 to switch between passenger transport mode and trolley mode. The folding process is as follows: First, adjust the cargo tray 2 to a tilted-back position. Then, the operator steps on the rear end of the pedal 45, causing the pin 48 to be pulled out of the upper third slot 53. After being pulled out, the waist 4 and front end 3 will tilt backward and downward under the adjustment of the center of gravity, causing the casters 41 to land. At this time, the front wheel 321, the fixed wheel, and the rear wheel 51 will all touch the ground simultaneously. Then, the operator lifts the rear end 5 forward until the pin 48 automatically springs into the lower third slot 53, thus completing the folding process. Figure 10 When folded, by simultaneously bringing the bottom of the frame 1 and the front wheel 321 into contact with the ground, the passenger-carrying flat scooter can maintain a stable, upright position, making it convenient to leave idle. Furthermore, in this state, opening the baffle 27 at the bottom of the carrying platform 2 at 90° further enhances the stability of the scooter when idle, thanks to the contact between the baffle 27 and the ground. It should also be noted that due to the structural distribution between the front wheel 321, the swivel wheel 41, and the rear wheel 51, even if the idle scooter tilts backward, the timely contact between the swivel wheel 41 and the ground prevents it from tipping over completely, thus providing better self-protection. Similarly, the unfolding process is the reverse of the folding process, adjusting the pin 48 from its lower insertion position in the third slot 53 to its upper insertion position in the third slot 53; therefore, further details are omitted. By designing the rear 5 to be able to unfold or fold relative to the frame 1, the passenger-carrying flat scooter of the present invention can be flexibly adjusted in both passenger transport and push-push transport modes to adapt to different transport situations and meet different transport needs.

[0039] Reference Figures 5 to 8In order to maintain good structural stability of the passenger-carrying flat scooter when switching between passenger-carrying and hand-push transport modes, in this embodiment, both third slots 53 are tapered from the outside to the inside. After the pin 48 is automatically inserted into the third slot 53, the operator can further step on the front end of the pedal 45 to make the pin 48 tightly inserted into the inner end of the third slot 53, ensuring that the pin 48 is stably inserted into the third slot 53, thereby maintaining good structural stability of the passenger-carrying flat scooter. In addition, a stop bar 54 is provided on the outer wall of the rotating fixing block 52. The stop bar 54 is located above the upper third slot 53. A clearance opening 49 is provided at the top of the waist 4, and a limiting notch 33 is provided at the top of the front 3. The clearance opening 49 and the limiting notch 33 are located sequentially on the upward swing path of the stop bar 54. After passing through the clearance opening 49, the stop bar 54 engages with the limiting notch 33. Only when the stop bar 53 aligns with the limiting notch 33 can the rear 5 fold upward normally into place. Afterward, the pin 48 can also be inserted into the lower third slot 53. The engagement between the clearance opening 49 and the stop bar 54 also ensures that when the vehicle is in the folded state, the waist 4 will not rotate relative to the front 3.

[0040] The above are all preferred embodiments of the present invention and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A passenger-carrying flat-ground scooter, characterized in that: The vehicle includes a body, a frame (1), and a cargo platform (2). The body includes a front (3), a waist (4), and a rear (5) connected in sequence. Front wheels (321) are provided on the left and right sides of the front (3), and rear wheels (51) are provided on the left and right sides of the rear (5). The frame (1) is connected to the front (3), and a cargo platform (2) is provided between the frame (1) and the front (3). The rear (5) is used to carry people. The waist (4) and the rear (5) are rotatably connected around a horizontal axis. There are two insertion positions between the rear (5) and the waist (4) around the rotation direction. A press-to-unlock mechanism is provided on the waist (4) to unlock the insertion state between the rear (5) and the waist (4). The frame (1) is tilted backward and connected to the front of the vehicle (3). The left and right sides of the lower half of the cargo plate (2) are hinged to the front of the vehicle (3). The left and right sides of the upper half of the cargo plate (2) are provided with a plug-in structure and a lifting and unlocking mechanism between them and the frame (1). The upper half of the loading plate (2) is provided with first spring pins (26) on the left and right sides. The frame (1) has two first insertion holes, which are used to be inserted into the two first spring pins (26) one by one. The lifting unlocking mechanism includes an unlocking handle (21), a first torsion spring (22) and a steel wire rope (23). The unlocking handle (21) is embedded in the front of the loading plate (2) and is hinged to the loading plate (2). The first torsion spring (22) is hinged between the unlocking handle (21) and the loading plate (2). The first torsion spring (22) controls the unlocking handle (21) to automatically retract and reset. The steel wire rope (23) is connected between the unlocking handle (21) and the first spring pin (26). The first spring pin (26) leaves the first insertion hole as the unlocking handle (21) is lifted. The upper and lower ends of the carrying plate (2) are provided with baffles (27). The baffle (27) at the upper end of the carrying plate (2) is the upper baffle (27), and the baffle (27) at the lower end of the carrying plate (2) is the lower baffle (27). The left and right ends of the baffle (27) are provided with second spring pins (28). The carrying plate (2) has two second insertion holes (29) corresponding to each second spring pin (28). When the baffle (27) is in the unfolded state, the second spring pin (28) is connected to one of the second insertion holes (29). When the baffle (27) is in the folded state, the second spring pin (28) is connected to the other second insertion hole (29).

2. The passenger-carrying flat-ground scooter according to claim 1, characterized in that: The waist (4) is provided with a horizontal second pivot. The rear (5) and the waist (4) are connected by the second pivot to rotate around the horizontal axis. The second pivot is fixedly fitted with a rotating fixing block (52). The rotating fixing block (52) has two third slots (53) opened around the axis. The two third slots (53) are located on the rear side of the rotating fixing block (52) and are distributed vertically. A pin (48) is slidably provided inside the waist (4). The pin (48) slides relative to the outer wall of the rotating fixing block (52) and is used to insert into any of the third slots (53). The press unlocking mechanism is connected to the pin (48) and controls the sliding of the pin (48).

3. A passenger-carrying flat-ground scooter according to claim 2, characterized in that: The press-to-unlock mechanism includes a pedal (45), a third torsion spring (46), and a connecting rod (47). The middle part of the pedal (45) is hinged to the waist (4). The connecting rod (47) is movably connected between the pin (48) and the front half of the pedal (45). The third torsion spring (46) is connected between the pedal (45) and the waist (4). The third torsion spring (46) causes the pedal (45) to automatically control the pin (48) to insert into the third slot (53).

4. A passenger-carrying flat-ground scooter according to claim 3, characterized in that: The third slot (53) is tapered from the outside in.

5. A passenger-carrying flat-ground scooter according to claim 4, characterized in that: The outer wall of the rotating fixing block (52) is provided with a stop bar (54), the stop bar (54) is located above the third slot (53) which is located at the upper position, the top of the waist (4) is provided with a clearance opening (49), the top of the front (3) is provided with a limiting notch (33), the clearance opening (49) and the limiting notch (33) are located on the upper swing path of the stop bar (54) in sequence.

6. A passenger-carrying flat-ground scooter according to claim 1, characterized in that: The vehicle head (3) includes a mounting frame (31) and a drive axle (32) connected vertically. The front wheel (321) is connected to the left and right sides of the drive axle (32). The mounting frame (31) is provided with a vertical first rotating shaft (311). The mounting frame (31) and the front end of the vehicle waist (4) are vertically rotatably connected through the first rotating shaft (311). The front end of the vehicle waist (4) is provided with a sleeve (42). The sleeve (42) is arranged around the first rotating shaft (311). The front end of the sleeve (42) is provided with a toothed section (43) around the axis. The mounting frame (31) is provided with a pinion (312) rotatably. The pinion (312) meshes with the toothed section (43) of the sleeve (42). The pinion is provided with an angle sensor. The passenger flat scooter reduces speed according to the rotation angle of the pinion (312).

7. A passenger-carrying flat-ground scooter according to claim 6, characterized in that: The sleeve (42) is provided with a second torsion spring (44) inside. The two ends of the second torsion spring (44) extend out of the sleeve (42) and are located on the left-turning path and the right-turning path of the mounting bracket (31), respectively.

Images