CN118651332A - Manned flat scooter - Google Patents

Abstract

The invention relates to the technical field of transportation means, in particular to a manned flat scooter which comprises a vehicle body, a vehicle frame and a cargo carrying plate, wherein the vehicle body comprises a vehicle head, a vehicle waist and a vehicle tail which are sequentially connected front and back, front wheels are arranged on the left side and the right side of the vehicle head, universal wheels are arranged at the bottom of the vehicle waist, rear wheels are arranged on the left side and the right side of the vehicle tail, the vehicle frame is connected to the vehicle head, the cargo carrying plate is arranged between the vehicle frame and the vehicle head, the vehicle tail is used for carrying a person, the vehicle waist is horizontally and rotationally connected with the vehicle tail, two inserting positions are arranged between the vehicle tail and the vehicle waist around the rotating direction, and a pressing unlocking mechanism is arranged on the vehicle waist and used for unlocking the inserting state between the vehicle tail and the vehicle waist.

Description

Manned flat scooter

Technical Field

The invention relates to the technical field of transportation means, in particular to a manned flat scooter.

Background

At present, when the workman is carrying goods, still need frequently use the handcart to carry out auxiliary transportation, along with the continuous improvement of handcart design, it has contained unmanned handcart and manned handcart two types, wherein, the advantage of unmanned handcart is small, easy operation, and often need not extra power, the shortcoming is limited in transportation ability, only be fit for carrying light article, the advantage of manned handcart is that can bear more heavier article, it is more comfortable to use, the shortcoming is that the volume is great, it is inconvenient to deposit, be inconvenient for be applied to the narrow space of road. Therefore, the inventor designs a manned flat scooter capable of switching between two modes of manned transportation and hand-push transportation so as to be flexibly adjusted according to practical application scenes.

Disclosure of Invention

In order to switch between the manned transportation mode and the hand-push transportation mode, the application provides a manned flat scooter.

The invention provides a manned flat scooter which adopts the following technical scheme:

The manned flat scooter comprises a vehicle body, a vehicle frame and a carrying plate, wherein the vehicle body comprises a vehicle head, a vehicle waist and a vehicle tail which are sequentially connected front and back, front wheels are arranged on the left side and the right side of the vehicle head, universal wheels are arranged at the bottom of the vehicle waist, and rear wheels are arranged on the left side and the right side of the vehicle tail; the frame is connected to the headstock, and a carrying plate is arranged between the frame and the headstock; the automobile tail is used for carrying people, the automobile waist is connected with the automobile tail in a rotating mode around a horizontal axis, two inserting positions are arranged between the automobile tail and the automobile waist around the rotating direction, a pressing unlocking mechanism is arranged on the automobile waist, and the pressing unlocking mechanism is used for unlocking the inserting state between the automobile tail and the automobile waist.

Preferably, the vehicle waist is provided with a horizontal second rotating shaft, the vehicle tail and the vehicle waist are connected in a rotating way around a horizontal axis through the second rotating shaft, a rotary fixing block is fixedly sleeved on the second rotating shaft, two third slots are formed in the rotary fixing block around the axis direction, and the two third slots are located at the rear side of the rotary fixing block and distributed up and down; the inside slip of car waist is provided with the bolt, the bolt is relative rotatory fixed block's outer wall slides and is used for inserting arbitrary the third slot, press release mechanism with the bolt is connected and is controlled the slip of bolt.

Preferably, the pressing unlocking mechanism comprises a pedal, a third torsion spring and a connecting rod, wherein the middle part of the pedal is hinged to the waist of the vehicle, the connecting rod is movably connected between the bolt and the front half section of the pedal, the third torsion spring is connected between the pedal and the waist of the vehicle, and the third torsion spring enables the pedal to automatically control the bolt to be inserted into the third slot.

Preferably, the third slot is tapered from outside to inside.

Preferably, the outer wall of the rotary fixing block is provided with a stop lever, the stop lever is located above the third slot and is located above the third slot, an avoidance opening is formed in the top of the waist of the bicycle, a limit notch is formed in the top of the bicycle head, and the avoidance opening and the limit notch are located on the upper swing path of the stop lever in sequence.

Preferably, the frame is connected with the headstock in a backward tilting manner, the left and right sides of the lower half section of the carrying plate are hinged with the headstock, and an inserting structure and a lifting unlocking mechanism are arranged between the left and right sides of the upper half section of the carrying plate and the frame.

Preferably, first spring pins are arranged on the left side and the right side of the upper half section of the carrying plate, the frame is provided with two first jacks, and the two first jacks are used for being correspondingly spliced with the two first spring pins one by one; the lifting unlocking mechanism comprises an unlocking handle, a first torsion spring and a wire rope, wherein the unlocking handle is embedded in the front face of the carrying plate, the unlocking handle is hinged to the carrying plate, the first torsion spring is hinged between the unlocking handle and the carrying plate, the first torsion spring controls the unlocking handle to automatically store and reset, the wire rope is connected between the unlocking handle and the first spring pin, and the first spring pin leaves the first jack along with lifting of the unlocking handle.

Preferably, the upper end and the lower end of the carrying plate are both provided with baffles, the baffles at the upper end of the carrying plate are used as upper baffles, the baffles at the lower end of the carrying plate are used as lower baffles, the left end and the right end of each baffle are provided with second spring pins, the carrying plate is provided with two second jacks corresponding to each second spring pin, when the baffles are in an unfolding state, the second spring pins are connected with one of the second jacks, and when the baffles are in a folding state, the second spring pins are connected with the other second jacks.

Preferably, the vehicle head comprises a mounting frame and a driving axle which are connected up and down, the front wheels are connected to the left side and the right side of the driving axle, the mounting frame is provided with a vertical first rotating shaft, and the mounting frame is connected with the front end of the vehicle waist in a vertical rotating manner through the first rotating shaft; the front end of the waist is provided with a sleeve, the sleeve surrounds the first rotating shaft, the front end of the sleeve is provided with a tooth-shaped section around the axis, the mounting rack is vertically rotatably provided with a pinion, and the pinion is meshed with the tooth-shaped section of the sleeve and used for controlling the steering range of the headstock.

Preferably, a second torsion spring is arranged in the sleeve, and two ends of the second torsion spring extend out of the sleeve and are respectively positioned on the left turning path and the right turning path of the mounting frame.

The beneficial effects of the invention are as follows:

1. The passenger flat scooter can be flexibly adjusted in two modes of passenger transportation and hand-push transportation by the design that the scooter tail can be unfolded or folded relative to the frame, so as to adapt to different transportation conditions and meet different transportation requirements;

2. When the manned flat-bottom scooter is used for transporting cargoes, the state of the cargo carrying plate can be flexibly adjusted according to different cargo types so as to achieve better transportation effect;

3. The steering range of the headstock can be controlled by adjusting the length of the tooth-shaped section and the meshing position of the tooth-shaped section and the pinion, and in addition, after an operator manipulates the headstock to finish steering, the headstock can be automatically straightened under the action of the second torsion spring, so that the effect of quick straightening of the headstock is achieved.

Drawings

FIG. 1 is a front side block diagram of a manned flat scooter in accordance with an embodiment of the present application;

FIG. 2 is a rear side block diagram of a manned flat scooter in accordance with an embodiment of the present application;

FIG. 3 is a rear view of a carrier plate according to an embodiment of the present application;

FIG. 4 is a block diagram of a lift unlock mechanism in an embodiment of the present application;

FIG. 5 is an exploded view of the structure between the mounting frame and the waist of the vehicle head in an embodiment of the application;

FIG. 6 is another view of FIG. 5;

FIG. 7 is a diagram illustrating a connection structure between a vehicle waist and a vehicle tail according to an embodiment of the present application;

FIG. 8 is a cross-sectional view of the structure between the waist and the tail of the vehicle in an embodiment of the application;

FIG. 9 is a folding process view of a manned flat scooter in accordance with an embodiment of the present application;

fig. 10 is an idle state diagram of the passenger flat scooter in an embodiment of the present application.

Reference numerals illustrate: 1. a frame; 2. a carrying plate; 21. unlocking the handle; 22. a first torsion spring; 23. a wire rope; 24. a conduit; 25. a tube cap; 26. a first spring pin; 27. a baffle; 28. a second spring pin; 29. a second jack; 3. a headstock; 31. a mounting frame; 311. a first rotating shaft; 312. a pinion gear; 32. a drive axle; 321. a front wheel; 33. limiting notch; 4. a waist is turned; 41. a universal wheel; 42. a sleeve; 43. tooth-shaped sections; 44. a second torsion spring; 45. a pedal; 46. a third torsion spring; 47. a connecting rod; 48. a plug pin; 49. an avoidance port; 5. a tail; 51. a rear wheel; 52. rotating the fixed block; 53. a third slot; 54. a stop lever.

Detailed Description

The invention will be further described with reference to figures 1-10 and examples.

The embodiment discloses a manned flat scooter.

Referring to fig. 1 and 2, the manned flat scooter comprises an electric vehicle body and a vehicle frame 1 connected to the front end of the vehicle body in a backward tilting manner, wherein the vehicle body is used for a person to stand, and an accelerator for controlling the electric vehicle body to move is arranged at the upper end of the vehicle frame 1, so that an operator can control the manned flat scooter to move by standing on the vehicle body and screwing the accelerator.

Referring to fig. 1 and 2, a carrier plate 2 is provided on a frame 1, and the carrier plate 2 is vertically swingably provided at a front end of a vehicle body, so that the carrier plate 2 includes a reclined state and a flat state, specifically, left and right sides of a lower half section of the carrier plate 2 are hinged on the vehicle body, and an inserting structure and a lifting unlocking mechanism are provided between an upper half section of the carrier plate 2 and the frame 1. When the carrying plate 2 is required to be adjusted to a backward tilting state, an operator lifts up the carrying plate 2 and inserts the carrying plate with the frame 1 for locking, and at the moment, cargoes can be placed on the carrying plate 2 in a tilting state for transportation; when the carrying plate 2 needs to be adjusted to be in a flat state, an operator unlocks the carrying plate 2 and drops the carrying plate downwards, so that the carrying plate 2 is horizontally overlapped on a vehicle body, and at the moment, cargoes can be placed on the carrying plate 2 in a horizontal state for transportation. Therefore, when the manned flat-bottom scooter is used for transporting cargoes, the state of the cargo carrying plate 2 can be flexibly adjusted according to different cargo types, so that a better transportation effect is achieved.

Referring to fig. 1 to 4, in order to realize the plugging between the carrier plate 2 and the frame 1, first spring pins 26 are disposed on the left and right sides of the upper half section of the carrier plate 2, the first spring pins 26 are located on the back of the carrier plate 2, the frame 1 is provided with a first jack corresponding to each first spring pin 26, and the carrier plate 2 maintains a stable backward tilting state through the plugging between the first spring pins 26 and the first jacks. The lifting unlocking mechanism comprises an unlocking handle 21, a first torsion spring 22 and a wire rope 23, wherein the unlocking handle 21 is embedded in the front face of the carrying plate 2, the unlocking handle 21 is hinged to the carrying plate 2, the first torsion spring 22 is hinged between the unlocking handle 21 and the carrying plate 2, the first torsion spring 22 controls the unlocking handle 21 to automatically store and reset, the wire rope 23 is connected between the unlocking handle 21 and a first spring pin 26, and the first spring pin 26 leaves the first jack along with lifting of the unlocking handle 21. Based on the design of the unlocking mechanism, when the plugging between the carrying plate 2 and the frame 1 is required to be unlocked, an operator only needs to lift the unlocking handle 21, and the unlocking handle 21 can be automatically stored and reset under the action of the first torsion spring 22 after the operator releases hands, so that the effect of conveniently unlocking is achieved. In addition, the unlocking structure further comprises a conduit 24 and a pipe cap 25 which are arranged on the back surface of the carrying plate 2 and are connected with each other, and the guide pipe and the pipe cap 25 are sequentially used for allowing the steel wire rope 23 in the carrying plate 2 to pass out and guiding the stretching direction of the steel wire rope 23.

Referring to fig. 1 and 3, the upper and lower ends of the carrier plate 2 are provided with baffles 27, the baffles 27 at the upper end of the carrier plate 2 serve as upper baffles 27, and the baffles 27 at the lower end of the carrier plate 2 serve as lower baffles 27. In order to realize that the baffle plate 27 can be adjusted between the unfolding state and the folding state, the left end and the right end of the baffle plate 27 are provided with second spring pins 28, the object carrying plate 2 is provided with two second jacks 29 corresponding to each second spring pin 28, when the baffle plate 27 is in the unfolding state, the second spring pins 28 are connected with one second jack 29, and when the baffle plate 27 is in the folding state, the second spring pins 28 are connected with the other second jack 29. Moreover, the inserting portion of the second spring pin 28 is hemispherical, when an operator manually expands or folds the baffle plate 27, the second spring pin 28 is stressed to be automatically separated from one of the second insertion holes 29 until the other second insertion hole 29 is aligned to realize insertion, based on the design of the baffle plate 27, the operator can flexibly adjust the upper baffle plate 27 or the lower baffle plate 27 to expand or fold according to the requirements of the state of the carrying plate 2 and the like, and the actual transportation requirements can be better met. In addition, the lower extreme of carrying thing board 2 is provided with the buffer block, and the buffer block is made by buffer material, and the buffer block is carrying the lower extreme of thing board 2 lift up in-process contact frame 1, on the one hand, and the buffer block can restrict the lift angle that carries thing board 2, avoids carrying the thing board to lift excessively, and on the other hand, the buffer block can play the effect of contact buffering, reduces the condition of abnormal sound and damage.

Referring to fig. 1, a vehicle body comprises a vehicle head 3, a vehicle waist 4 and a vehicle tail 5 which are sequentially connected front and back, the vehicle frame 1 is fixedly connected to the vehicle head 3, a carrying plate 2 is hinged to the vehicle head 3, the vehicle head 3 and the vehicle waist 4 are rotationally connected around a horizontal axis, front wheels 321 are arranged on the left side and the right side of the vehicle head 3, the front wheels 321 are directional wheels, rear wheels 51 are arranged on the left side and the right side of the vehicle tail 5, and the rear wheels 51 are also directional wheels. When an operator stands on the tail 5 to operate the manned flat-bottom scooter to move, the operator can steer by rotating the angle between the head 3 and the waist 4. In addition, in order to facilitate the operator standing on the tail 5, the tail 5 is constituted by a slide plate. Further, the diameter of the front wheel 321 is larger than that of the rear wheel 51, and the loading plate 2 is arranged at the head 2, so that the loading capacity at the head 2 can be better improved by arranging the larger front wheel 321.

Referring to fig. 2, 5 and 6, the vehicle head 3 includes a mounting frame 31 and a driving axle 32 connected up and down, two front wheels 321 are specifically connected to the left and right sides of the driving axle 32, and the mounting frame 31 is further used for connecting the vehicle frame 1 and the carrying board 2. The mounting frame 31 of the headstock 3 is provided with a vertical first rotating shaft 311, and the mounting frame 31 and the front end of the waist 4 are connected in a vertically rotating manner through the first rotating shaft 311, namely, the headstock 3 and the waist 4 can relatively swing left and right. Further, the front end of the 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 tail end of the mounting frame 31 of the headstock 3 is vertically and rotatably provided with a pinion 312, the pinion 312 is meshed with the toothed section 43 of the sleeve 42, based on this, the steering range of the headstock 3 can be controlled by adjusting the length of the toothed section 43 and the meshing position of the toothed section 43 and the pinion 312, and in this embodiment, the steering range of the headstock 3 can be steered by 20 degrees left and right. Further, the second torsion spring 44 is arranged in the sleeve 42, and two ends of the second torsion spring 44 extend out of the sleeve 42 and are respectively located on a left turning path and a right turning path of the mounting frame 31 of the headstock 3, so that after an operator manipulates the headstock 3 to complete turning, the headstock 3 can be automatically adjusted under the action of the second torsion spring 44, and the effect of quick correction of the headstock 3 is achieved. In addition, the pinion is provided with angle sensor, and manned flat scooter carries out the deceleration processing according to the rotation angle of pinion, and the bigger rotation angle, the more the deceleration.

Referring to fig. 7 and 8, the front end of the tail 5 is tilted up and extends into the middle of the waist 4, a horizontal second rotating shaft is fixedly arranged between the left side and the right side of the front end of the tail 5, and the front end of the tail 5 and the middle of the waist 4 are connected in a rotating manner around a horizontal axis through the second rotating shaft, namely, the waist 4 and the tail 5 can swing up and down relatively. Further, a rotary fixing block 52 is fixedly sleeved on the second rotating shaft, two third slots 53 are formed in the rotary fixing block 52 around the axis direction, and the two third slots 53 are located at the rear side of the rotary fixing block 52 and are distributed up and down. The inside of the waist 4 is slidably provided with a latch 48, and the latch 48 slides relative to the outer wall of the rotary fixing block 52 and is used for being inserted into any one of the third slots 53. The rear end of the vehicle waist 4 is provided with a pressing unlocking mechanism, the pressing unlocking mechanism comprises a pedal 45, a third torsion spring 46 and a connecting rod 47, the middle part of the pedal 45 is hinged to the rear end of the vehicle waist 4, the hinge axis of the pedal 45 is parallel to the axis of the second rotating shaft, two ends of the connecting rod 47 respectively rotate to connect the rear end of a bolt 48 with the front half section of the pedal 45, the third torsion spring 46 is connected between the pedal 45 and the vehicle waist 4, and the third torsion spring 46 enables the pedal 45 to automatically control the bolt 48 to be inserted into a third slot 53. Further, the bottom of the waist 4 is provided with a universal wheel 41. Referring to fig. 9, based on the above design, the tail 5 can be unfolded or folded relative to the frame 1 to switch to a manned or trolley state, and the folding process is as follows: firstly, the carrying plate 2 is adjusted to a backward tilting state, then an operator steps on the rear end of the pedal 45 to pull out the third slot 53 with the upper position of the bolt 48, after the third slot 53 is pulled out, the waist 4 and the head 3 can tilt backward and downward under the adjustment of the gravity center, so that the universal wheel 41 falls to the ground, and at the moment, the front wheel 321, the directional wheel and the rear wheel 51 are simultaneously landed; the operator then lifts the tail 5 forward until the latch 48 automatically snaps into the third slot 53 in the lower position, completing the folding process. In combination with fig. 10, after folding, the bottom of the frame 1 and the front wheel 321 are simultaneously contacted with the ground, so that the manned flat scooter can be kept in a stable vertical placement state, thereby being convenient for idling the manned flat scooter, in this state, the baffle 27 at the bottom of the carrying plate 2 can be opened at 90 degrees, the contact between the baffle 27 and the ground can be utilized to further improve the stability of idling the manned flat scooter, and the attention is paid to the fact that due to the structural distribution among the front wheel 321, the universal wheel 41 and the rear wheel 51, even if the idling manned flat scooter is inclined backwards, the manned flat scooter can be prevented from being completely inclined through timely contact between the universal wheel 41 and the ground, thereby achieving better self-protection effect. Similarly, the unfolding process is the reverse operation of the folding process, so that the latch 48 is adjusted from the third slot 53 with the lower insertion position to the third slot 53 with the upper insertion position, and thus the description thereof will not be repeated. Through the design that the tail 5 can be unfolded or folded relative to the frame 1, the manned flat scooter can be flexibly adjusted in two modes of manned transportation and hand-push transportation so as to adapt to different transportation conditions and meet different transportation requirements.

Referring to fig. 5 to 8, in order to enable the manned scooter to maintain good structural stability after switching between the manned transportation mode and the hand-push transportation mode, in this embodiment, both the two third slots 53 are tapered from outside to inside, and after the latch 48 is automatically inserted into the third slot 53, an operator can further tread the front end of the pedal 45, so that the latch 48 is inserted into the inner end of the third slot 53, and the latch 48 is ensured to be stably inserted into the third slot 53, thereby enabling the manned scooter to maintain good structural stability. In addition, the outer wall of the rotary fixing block 52 is also provided with a stop lever 54, the stop lever 54 is positioned above the third slot 53 positioned at the upper position, the top of the waist 4 is provided with a avoiding opening 49, the top of the headstock 3 is provided with a limiting notch 33, the avoiding opening 49 and the limiting notch 33 are sequentially positioned on the upper swinging path of the stop lever 54, the stop lever 54 is matched with the limiting notch 33 after passing through the avoiding opening 49, the tail 5 can be normally folded upwards in place only when the stop lever 53 is aligned with the limiting notch 33, then the bolt 48 can be inserted into the third slot 53 positioned at the lower position, the matching between the avoiding opening 49 and the stop lever 54 also ensures that the waist 4 can not rotate relative to the headstock 3 when the vehicle is in a retracted state,

The above embodiments are not intended to limit the scope of the present application, so: all equivalent changes in structure, shape and principle of the application should be covered in the scope of protection of the application.

Claims (10)

1. A manned flat scooter, characterized in that: the vehicle comprises a vehicle body, a vehicle frame (1) and a carrying board (2), wherein the vehicle body comprises a vehicle head (3), a vehicle waist (4) and a vehicle tail (5) which are sequentially connected front and back, front wheels (321) are arranged on the left side and the right side of the vehicle head (3), and rear wheels (51) are arranged on the left side and the right side of the vehicle tail (5); the frame (1) is connected to the headstock (3), and a carrying plate (2) is arranged between the frame (1) and the headstock (3); the automobile tail (5) is used for carrying people, the automobile waist (4) is connected with the automobile tail (5) in a rotating mode around a horizontal axis, two inserting positions are arranged between the automobile tail (5) and the automobile waist (4) around the rotating direction, a pressing unlocking mechanism is arranged on the automobile waist (4), and the pressing unlocking mechanism is used for unlocking an inserting state between the automobile tail (5) and the automobile waist (4).

2. A manned flat scooter as claimed in claim 1, wherein: the vehicle waist (4) is provided with a horizontal second rotating shaft, the vehicle tail (5) is in rotating connection with the vehicle waist (4) around a horizontal axis through the second rotating shaft, a rotary fixing block (52) is fixedly sleeved on the second rotating shaft, two third slots (53) are formed in the rotary fixing block (52) around the axis direction, and the two third slots (53) are located at the rear side of the rotary fixing block (52) and are distributed up and down; the inside slip of waist (4) is provided with bolt (48), bolt (48) are relative the outer wall of rotatory fixed block (52) is slided and is used for inserting arbitrary third slot (53), press release mechanism with bolt (48) are connected and are controlled the slip of bolt (48).

3. A manned flat scooter as claimed in claim 2, wherein: the pressing unlocking mechanism comprises a pedal (45), a third torsion spring (46) and a connecting rod (47), wherein the middle part of the pedal (45) is hinged to the waist (4), the connecting rod (47) is movably connected between the bolt (48) and the front half section of the pedal (45), the third torsion spring (46) is connected between the pedal (45) and the waist (4), and the third torsion spring (46) enables the pedal (45) to automatically control the bolt (48) to be inserted into the third slot (53).

4. A manned flat scooter as claimed in claim 3, wherein: the third slot (53) is tapered from outside to inside.

5. A manned flat scooter as claimed in claim 4, wherein: the outer wall of rotatory fixed block (52) is provided with pin (54), pin (54) are located the top of third slot (53) that the position is located upwards, dodge mouth (49) have been seted up at waist (4) top, spacing breach (33) have been seted up at the top of locomotive (3), dodge mouth (49) with spacing breach (33) are located in proper order on the upper pendulum route of pin (54).

6. A manned flat scooter as claimed in claim 1, wherein: the frame (1) backward incline connect in locomotive (3), the left and right sides of the lower half section of year thing board (2) articulate in locomotive (3), the left and right sides of the upper half section of year thing board (2) with be provided with grafting structure and lift release mechanism between frame (1).

7. A manned flat scooter as claimed in claim 6, wherein: the left side and the right side of the upper half section of the carrying plate (2) are provided with first spring pins (26), the frame (1) is provided with two first jacks, and the two first jacks are used for being correspondingly spliced with the two first spring pins (26) one by one; the lifting unlocking mechanism comprises an unlocking handle (21), a first torsion spring (22) and a steel wire rope (23), wherein the unlocking handle (21) is embedded in the front face of the carrying plate (2), the unlocking handle (21) is hinged to the carrying plate (2), the first torsion spring (22) is hinged to the unlocking handle (21) and is arranged between the carrying plate (2), the first torsion spring (22) controls the unlocking handle (21) to automatically store and reset, the steel wire rope (23) is connected between the unlocking handle (21) and the first spring pin (26), and the first spring pin (26) is separated from the first jack along with lifting of the unlocking handle (21).

8. A manned flat scooter as claimed in claim 7, wherein: the utility model discloses a folding type electric bicycle, including baffle (27) and second jack (29) are set up in the upper and lower end of carrying thing board (2), carry thing board (2) upper end baffle (27) are as upper baffle (27), carry thing board (2) lower extreme baffle (27) are as lower baffle (27), the both ends are provided with second spring pin (28) about baffle (27), carry thing board (2) to every second spring pin (28) has seted up two second jacks (29), works as when baffle (27) are in the expansion state, second spring pin (28) are connected with one of them second jack (29), works as baffle (27) are in when folding state, second spring pin (28) are connected with another second jack (29).

9. A manned flat scooter as claimed in claim 1, wherein: the vehicle head (3) comprises a mounting frame (31) and a driving axle (32) which are connected up and down, the front wheels (321) are connected to the left side and the right side of the driving axle (32), the mounting frame (31) is provided with a vertical first rotating shaft (311), and the mounting frame (31) is connected with the front end of the vehicle waist (4) in a vertical rotating manner through the first rotating shaft (311); the front end of waist (4) is provided with sleeve (42), sleeve (42) are around first pivot (311) setting, tooth profile section (43) have been seted up around the axis to the front end of sleeve (42), the vertical rotation ground of mounting bracket (31) is provided with pinion (312), pinion (312) with tooth profile section (43) meshing of sleeve (42), the pinion is provided with angle sensor, manned flat scooter carries out the deceleration processing according to the rotation angle of pinion (312).

10. A manned flat scooter as claimed in claim 9, wherein: the inside of sleeve (42) is provided with second torsional spring (44), the both ends of second torsional spring (44) stretch out to sleeve (42) are located respectively on the left-hand turn route and the right-hand turn route of mounting bracket (31).