A three-wheeled vehicle with a joystick that controls the rear wheel steering and body roll simultaneously

Abstract

A three-wheeled vehicle with a joystick for controlling the steering of the rear wheels and synchronously controlling the roll of the vehicle body, the front wheel is an isosceles triangle structure with a front driving wheel and two rear steering wheels, characterized in that the left active steering rocker arm on the steering gear and the lower small swing arm on the left joystick and the right active steering rocker arm on the steering gear and the lower small swing arm on the right joystick are respectively connected by a longitudinal steering ball head tie rod with a ball hinge, the secondary steering rocker arm on the steering gear and the active steering knuckle arm on any steering clevis shaft are connected by an active transverse steering ball head tie rod with a ball hinge, and the secondary steering knuckle arm on any steering clevis shaft and the tilting rocker arm below the rear of the frame longitudinal beam are connected by a transverse tilting ball head tie rod with a ball hinge. The present invention makes the center of gravity of the driver's seat low, and the vehicle body tilts inward when turning during driving, so that the vehicle can overcome the centrifugal force when turning at high speed, thereby maintaining the stability of the vehicle when turning, which is conducive to improving driving safety.

Description

Technical Field

[0001] The invention relates to the field of vehicles, in particular to a posi three-wheel vehicle with a joystick controlling the steering of rear wheels and synchronously controlling the roll of the vehicle body. Background Art

[0002] At present, the three-wheeled vehicle on the market is a vehicle transformed from a two-wheeled vehicle. It is widely used and favored by people because of its small size, convenient driving, low price and other advantages. The basic structure of the three-wheeled vehicle is an isosceles triangle with a front single steering wheel and a rear double driving wheel. It is composed of a front single steering wheel, a front fork, a handlebar (grip), a frame, a rear axle and a rear double driving wheel. The front single steering wheel is connected to the front fork, and the handlebar and the front fork are connected as one body and are on the same vertical plane. When the handlebar is turned, the force is directly transmitted to the front single steering wheel through the front fork. The front fork is connected to the front end of the frame, the rear part of the frame is connected to the rear axle, and the rear axle is connected to the rear double driving wheels. The three-wheeled vehicle cannot tilt to one side of the direction of rotation under the action of its own gravity when driving like a two-wheeled vehicle, nor can it turn with a low center of gravity when driving like a four-wheeled vehicle with a low driving seat. Although the three-wheeled vehicle has good stability when parking or driving at a slow speed, it is easy to cause the body to tilt or even roll over during the high-speed steering process. Summary of the invention

[0003] In view of the above-mentioned deficiencies in the prior art, the main purpose of the present invention is to solve the problem that the body of a three-wheeled vehicle is prone to rollover when turning or driving at high speed, and to provide a three-wheeled vehicle with a joystick controlling the rear wheel steering and synchronously controlling the body roll.

[0004] The technical solution adopted by the present invention to solve the technical problem is: a three-wheeled vehicle with a joystick controlling the steering of the rear wheels and synchronously controlling the roll of the vehicle body, the front wheel is an isosceles triangle structure with a front driving wheel and two rear steering wheels, the front driving wheel is installed at the tail of the front fork through a central rotating shaft, a large lifting ear is upwardly arranged at the front end of the front fork, and the front end of the frame longitudinal beam is connected to the front end of the lower rotating shaft tube through a rotating shaft hinge, the tail of the front fork is upwardly arranged with small lifting ears corresponding to the frame longitudinal beam downward, and a shock-absorbing hinge is arranged between the small lifting ears, and the frame A seat adjustable fore and aft is installed on the middle part of the longitudinal beam, a transverse axis is arranged on both sides of the frame longitudinal beam, and a left joystick and a right joystick are symmetrically arranged on the transverse axis, and the left joystick and the right joystick are composed of an upper handlebar, a transverse axis tube and a lower small swing arm, and two inclined shaft brackets and an inclined rocker arm are arranged from back to front on the rear part of the frame longitudinal beam, and an inclined shaft is longitudinally arranged on the center position of the frame cross beam, and the inclined shaft bracket is installed on the inclined shaft, and tension spring links are symmetrically arranged on both sides of the frame cross beam on the rear part of the frame longitudinal beam, and a steering shaft tube is respectively arranged at both ends of the frame cross beam, and the two rear steering wheels are respectively installed on the steering shaft tube through the left and right symmetrical steering clevis shafts, and a central shaft is vertically arranged below the middle part of the frame cross beam, and a steering gear is installed on the central shaft, and a left active steering rocker arm, a right active steering rocker arm and a secondary steering rocker arm are respectively arranged on the steering gear, and an active steering knuckle arm and a secondary steering knuckle arm are arranged on the steering clevis shaft, and the left active steering rocker arm on the steering gear is connected with the lower small swing arm and the steering gear on the left joystick The right active steering rocker arm on the right steering gear and the lower small swing arm on the right joystick are respectively connected by a longitudinal steering ball head tie rod, the secondary steering rocker arm on the steering gear and the active steering knuckle arm on any steering clevis shaft are connected by an active transverse steering ball head tie rod, the active steering knuckle arms on the left and right steering clevis shafts are connected by a secondary transverse steering ball head tie rod, and the secondary steering knuckle arm on any steering clevis shaft is connected to the tilting rocker arm at the lower rear of the frame longitudinal beam by a transverse tilting ball head tie rod.

[0005] The joystick controls the rear wheel steering and the body roll of the positronic tricycle synchronously. The front wheel is a front driving wheel, and the driving device can be driven by pedal manpower, hub motor, or a combination of pedal manpower and hub motor.

[0006] The above-mentioned joystick controls the rear wheel steering and synchronously controls the body roll of the positronic tricycle, the seat is arranged with a low center of gravity in the middle of the frame longitudinal beam, and a left joystick and a right joystick are arranged on both sides of the seat, which can control the rear wheel steering by pushing and pulling forward and backward.

[0007] The above-mentioned joystick controls the steering of the rear wheels and synchronously controls the roll of the vehicle body of the positronic tricycle, the vehicle body can tilt left and right, the tail of the frame longitudinal beam and the center position of the frame cross beam are connected by a rotating shaft hinge, and tension spring connections are symmetrically arranged on both sides of the rear of the frame longitudinal beam corresponding to the frame cross beam. When there is no one and the vehicle is empty, the tension spring assists the vehicle body to return to the normal state.

[0008] The joystick controls the steering of the rear wheels and the roll of the vehicle body synchronously. The rear wheels are two rear steering wheels, and the structure of the rear steering wheels and the frame crossbeam suspension can adopt an independent suspension system structure or a non-independent suspension system structure.

[0009] The above-mentioned joystick controls the rear wheel steering and synchronously controls the body roll of the positron tricycle. The joystick steering uses the driver's arm strength as the steering energy. The driver applies a rear pulling force to the upper handlebar of the left joystick and a forward thrust to the upper handlebar of the right joystick. The force is transmitted to the secondary steering rocker arm through the transverse axis tube, the lower small swing arm, the longitudinal steering ball head tie rod, the left active steering rocker arm and the right active steering rocker arm. The secondary steering rocker arm transmits the force to the active steering knuckle arm on the connected steering clevis shaft through the active transverse steering ball head tie rod. The left and right steering clevis shafts and the left and right rear steering wheels supported by them are deflected to the right through the secondary transverse steering ball head tie rod. At the same time, the secondary steering knuckle arm is transmitted to the inclined rocker arm below the rear of the frame longitudinal beam through the connected transverse inclined ball head tie rod, so that the frame longitudinal beam and the The seat, left joystick, right joystick and front driving wheel supported by the vehicle are tilted to the left; the driver applies a forward thrust to the upper handlebar of the left joystick and a rearward pulling force to the upper handlebar of the right joystick at the same time. The force is transmitted to the secondary steering rocker arm through the transverse axis tube, the lower small swing arm, the longitudinal steering ball head tie rod, the left active steering rocker arm and the right active steering rocker arm. The secondary steering rocker arm is transmitted to the active steering knuckle arm on the connected steering clevis shaft through the active transverse steering ball head tie rod, and the left and right steering clevis shafts and the left and right rear steering wheels supported by them are deflected to the left through the secondary transverse steering ball head tie rod. At the same time, the secondary steering knuckle arm is transmitted to the tilting rocker arm below the rear part of the frame longitudinal beam through the connected transverse tilting ball head tie rod, so that the frame longitudinal beam and the seat, left joystick, right joystick and front driving wheel supported by it are tilted to the right.

[0010] The above-mentioned joystick controls the steering of the rear wheels and synchronously controls the roll of the vehicle body. The driver can achieve vehicle steering by controlling the change of his own center of gravity. The driver's body tilts to the left, and the center of gravity force is tilted to the left through the frame longitudinal beam and the seat supported by it, the left joystick, the right joystick, and the front drive wheel tilt to the left. The tilting rocker arm below the rear of the frame longitudinal beam is transmitted to the connected secondary steering knuckle arm through the transverse tilting ball head tie rod, and the secondary steering knuckle arm is transmitted to the active steering knuckle arm on the same side, and the left and right steering clevis shafts and the left and right steering right rear wheels supported by it are deflected through the secondary transverse steering ball head tie rod. At the same time, the active steering knuckle arm is transmitted to the secondary steering rocker arm through the connected active transverse steering ball head tie rod, and the secondary steering rocker arm is transmitted to the upper handlebar through the left active steering rocker arm, the right active steering rocker arm, the longitudinal steering ball head tie rod, the lower small swing arm and the transverse axis tube. The upper handlebar of the longitudinal rod swings backward, and the upper handlebar of the right joystick swings forward at the same time; the driver's body tilts to the right with the center of gravity force, and this force tilts to the right through the frame longitudinal beam and the seat supported by it, the left joystick, the right joystick, and the front drive wheel. The tilting rocker arm below the rear part of the frame longitudinal beam is transmitted to the connected secondary steering knuckle arm through the transverse tilting ball head tie rod, and the secondary steering knuckle arm is transmitted to the active steering knuckle arm on the same side, and the left and right steering clevis shafts and the left and right rear steering wheels supported by it are deflected to the left through the secondary transverse steering ball head tie rod. At the same time, the active steering knuckle arm is transmitted to the secondary steering rocker arm through the connected active transverse steering ball head tie rod, and the secondary steering rocker arm is transmitted to the upper handlebar through the left active steering rocker arm, the right active steering rocker arm, the longitudinal steering ball head tie rod, the lower small swing arm and the transverse axis tube. The upper handlebar of the left joystick swings forward, and the upper handlebar of the right joystick swings backward at the same time.

[0011] The beneficial effect of the present invention is that the present invention makes the center of gravity of the driver's seat low, the body of the vehicle tilts inward when turning, and the synchronization of steering and tilt correction is achieved, so that the greater the steering angle, the greater the inward inclination of the body. In this way, the vehicle can overcome the centrifugal force when turning at high speed, thereby maintaining the stability of the vehicle when turning, which is beneficial to improving driving safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The present invention will be further described below with reference to the accompanying drawing of a positronic tricycle in which a joystick driven by foot manpower controls the steering of the rear wheels and controls the roll of the vehicle body simultaneously.

[0013] Figure 1 It is a three-dimensional schematic diagram of the present invention.

[0014] Figure 2 It is a main schematic diagram of the present invention.

[0015] Figure 3 It is a bottom view schematic diagram of the present invention.

[0016] Figure 4 It is a schematic diagram of the composition and arrangement of the mechanical steering system of the present invention.

[0017] In the figure, 1. front drive wheel, 2. rear steering wheel, 3. front fork, 4. large lifting eye, 5. frame longitudinal beam, 6. shaft tube, 7. small lifting eye, 8. shock absorber, 9. seat, 10. transverse axis, 11. left joystick, 12. right joystick, 13. upper handlebar, 14. transverse axis tube, 15. lower small swing arm, 16. tilt shaft bracket, 17. tilt rocker arm, 18. frame cross beam, 19. tilt shaft, 20. tension spring, 21. steering shaft tube, 22. steering clevis shaft, 23. center shaft, 24. steering gear, 25. left active steering rocker arm, 26. Right active steering rocker arm, 27. Secondary steering rocker arm, 28. Active steering knuckle arm, 29. Secondary steering knuckle arm, 30. Longitudinal steering ball rod, 31. Active lateral steering ball rod, 32. Secondary lateral steering ball rod, 33. Horizontal tilt ball rod. DETAILED DESCRIPTION

[0018] A three-wheeled vehicle with a joystick that controls the steering of the rear wheels and synchronously controls the roll of the vehicle body, wherein the front wheel is an isosceles triangle structure of a front driving wheel 1 and the rear wheel is two rear steering wheels 2, the front driving wheel 1 is mounted on the tail of a front fork 3 through a central rotating shaft, a large lifting lug 4 is arranged upward at the front end of the front fork 3, and the front end of the front fork 3 is connected to the front end lower rotating shaft tube 6 of a frame longitudinal beam 5 through a rotating shaft hinge, small lifting lugs 7 are arranged upward at the tail of the front fork 3 corresponding to the frame longitudinal beam 5, and a shock-absorbing hinge 8 is arranged between the small lifting lugs 7, and a front and rear adjustable seat 9 is installed on the middle of the frame longitudinal beam 5, a transverse axis 10 is arranged on both sides of the frame longitudinal beam 5, and a left joystick 11 and a right joystick 12 are symmetrically installed on the transverse axis 10, and the left joystick 11 and the right joystick 12 are composed of an upper handlebar 13, a transverse axis tube 14 and a lower small swing arm 15, and two tilt levers are arranged from back to front at the rear of the frame longitudinal beam 5. The inclined shaft bracket 16 and an inclined rocker arm 17, an inclined shaft 19 is longitudinally arranged on the center position of the frame cross beam 18, and the inclined shaft bracket 16 is installed on the inclined shaft 19. The upper part of the rear of the frame longitudinal beam 5 corresponds to the two sides of the frame cross beam 18 and is symmetrically provided with tension springs 20 for connection. A steering shaft tube 21 is respectively arranged at both ends of the frame cross beam. The two rear steering wheels 2 are respectively installed on the steering shaft tube 21 through the left and right symmetrical steering clevis shafts 22. A center is vertically arranged below the middle of the frame cross beam 18. The central rotating shaft 23 is provided with a steering gear 24, and the steering gear 24 is provided with a left active steering rocker arm 25, a right active steering rocker arm 26, and a secondary active steering rocker arm 27. The steering clevis shaft 22 is provided with an active steering knuckle arm 28 and a secondary active steering knuckle arm 29. The left active steering rocker arm 25 on the steering gear 24 and the lower small swing arm 15 on the left joystick 11 and the right active steering rocker arm 26 on the steering gear 24 and the lower small swing arm 15 on the right joystick 12 respectively have a longitudinal steering ball head. The tie rod 30 is connected by a ball hinge, the secondary steering rocker arm 27 on the steering gear 24 and the active steering knuckle arm 28 on any one of the steering clevis shafts 22 have an active lateral steering ball head tie rod 31 connected by a ball hinge, the active steering knuckle arms 28 on the left and right steering clevis shafts 22 have a secondary lateral steering ball head tie rod 32 connected by a ball hinge, and the secondary steering knuckle arm 29 on any one of the steering clevis shafts 22 and the tilting rocker arm 17 at the lower rear of the frame longitudinal beam 5 have a lateral tilting ball head tie rod 33 connected by a ball hinge.

[0019] The joystick controls the rear wheel steering and the body roll of the positronic tricycle, wherein the front wheel is a front driving wheel 1, and the driving device can be driven by pedal manpower, wheel hub motor, or a combination of pedal manpower and wheel hub motor.

[0020] The above-mentioned joystick controls the rear wheel steering and synchronously controls the body roll of the positronic tricycle. The seat 9 is arranged with a low center of gravity in the middle of the frame longitudinal beam 5. There is a left joystick 11 and a right joystick 12 on both sides of the seat 9, which can control the rear wheel steering by pushing and pulling forward and backward.

[0021] The joystick controls the rear wheel steering and the body roll of the positronic tricycle, the body can tilt left and right, the tail of the frame longitudinal beam 5 and the center position of the frame cross beam 18 are connected by a rotating shaft hinge, and tension springs 20 are symmetrically arranged on both sides of the frame cross beam 18 on the rear of the frame longitudinal beam 5. When there is no one on the vehicle and the vehicle is empty, the tension springs 20 assist the body to return to the center.

[0022] The joystick controls the steering of the rear wheels and the roll of the vehicle body in a synchronous manner. The rear wheels are two rear steering wheels 2. The structure in which the rear steering wheels 2 are suspended from the frame crossbeam 18 can adopt an independent suspension system structure or a non-independent suspension system structure.

[0023] The above-mentioned joystick controls the rear wheel steering and synchronously controls the body roll of the positron tricycle. The joystick steering uses the driver's arm strength as the steering energy. The driver applies a rear pulling force to the upper handlebar 13 of the left joystick 11, and at the same time applies a forward thrust to the upper handlebar 13 of the right joystick 12. The force is transmitted to the secondary steering rocker arm 27 through the transverse axis tube 14, the lower small swing arm 15, the longitudinal steering ball head tie rod 30, the left active steering rocker arm 25 and the right active steering rocker arm 26. The secondary steering rocker arm 27 is transmitted to the active steering knuckle arm 28 on the connected steering clevis shaft 22 through the active transverse steering ball head tie rod 31. The left and right steering clevis shafts 22 and the left and right rear steering wheels 2 supported by them are deflected to the right through the secondary transverse steering ball head tie rod 32. At the same time, the secondary steering knuckle arm 29 is transmitted to the longitudinal direction of the frame through the connected transverse tilting ball head tie rod 33. The inclined rocker arm 17 below the rear part of the beam 5 makes the frame longitudinal beam 5 and the seat 9, left joystick 11, right joystick 12 and front driving wheel 1 supported by it tilt to the left; the driver applies a forward thrust to the upper handlebar 13 of the left joystick 11, and at the same time applies a rearward pulling force to the upper handlebar 13 of the right joystick 12, and the force is transmitted to the secondary steering rocker arm 27 through the transverse axis tube 14, the lower small swing arm 15, the longitudinal steering ball head tie rod 30, the left active steering rocker arm 25 and the right active steering rocker arm 26, and the secondary steering rocker arm 27 is transmitted to the active steering knuckle arm 28 on the connected steering clevis shaft 22 through the active transverse steering ball head tie rod 31, and the left and right steering clevis shafts 22 and the left and right rear steering wheels 2 supported by it are deflected to the left through the secondary transverse steering ball head tie rod 32, and at the same time the secondary steering knuckle arm 29 is connected through the transverse tilting ball head tie rod 33 The force is transmitted to the tilting rocker arm 17 below the rear portion of the frame longitudinal beam 5, causing the frame longitudinal beam 5 and the seat 9, the left joystick 11, the right joystick 12, and the front drive wheel 1 supported by it to tilt to the right.

[0024] The joystick controls the rear wheel steering and synchronously controls the body roll of the positronic tricycle. The driver can achieve vehicle steering by controlling the change of his own center of gravity. The driver's body tilts to the left with the center of gravity. This force is transmitted to the left through the frame longitudinal beam 5 and the seat 9 supported by it, the left joystick 11, the right joystick 12, and the front drive wheel 1. The tilting rocker arm 17 at the lower rear of the frame longitudinal beam 5 is transmitted to the connected secondary steering knuckle arm 29 through the transverse tilting ball head tie rod 33. The secondary steering knuckle arm 29 is transmitted to the active steering knuckle arm 28 on the same side through the secondary transverse steering ball head tie rod 3 2 makes the left and right steering clevis shafts 22 and the left and right rear steering wheels 2 supported by them deflect to the right, and at the same time, the active steering knuckle arm 28 transmits the force to the secondary steering rocker arm 27 through the connected active transverse steering ball head tie rod 31, and the secondary steering rocker arm 27 transmits the force to the upper handlebar 13 through the left active steering rocker arm 25, the right active steering rocker arm 26, the longitudinal steering ball head tie rod 30, the lower small swing arm 15 and the transverse axis tube 14, and the upper handlebar 13 of the left joystick 11 swings backward, and at the same time, the upper handlebar 13 of the right joystick 12 swings forward; the center of gravity force of the driver's body tilting to the right is transmitted to the frame longitudinal beam 5 through the frame longitudinal beam 5. The seat 9, the left joystick 11, the right joystick 12 and the front driving wheel 1 supported by it are tilted to the right, the tilting rocker arm 17 below the rear part of the frame longitudinal beam 5 is transmitted to the connected secondary steering knuckle arm 29 through the transverse tilting ball head tie rod 33, the secondary steering knuckle arm 29 is transmitted to the active steering knuckle arm 28 on the same side, the left and right steering clevis shafts 22 and the left and right rear steering wheels 2 supported by it are deflected to the left through the secondary transverse steering ball head tie rod 32, and at the same time, the active steering knuckle arm 28 is transmitted to the secondary steering rocker arm 27 through the connected active transverse steering ball head tie rod 31, and the secondary steering rocker arm 27 is transmitted to the upper handlebar 13 through the left active steering rocker arm 25, the right active steering rocker arm 26, the longitudinal steering ball head tie rod 30, the lower small swing arm 15 and the transverse axis tube 14, the upper handlebar 13 of the left joystick 11 swings forward, and at the same time, the upper handlebar 13 of the right joystick 12 swings backward.

[0025] The above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the technical solutions. Although the applicant has described the present invention in detail with reference to the preferred embodiments, those skilled in the art should understand that those modifications or equivalent substitutions of the technical solutions of the invention without departing from the purpose and scope of the technical solutions should be included in the scope of the claims of the present invention.

Claims

1. A three-wheeled vehicle with a joystick that controls the rear wheel steering and the body roll synchronously, characterized in that: The front wheel is an isosceles triangle structure with a front driving wheel (1) and two rear steering wheels (2). The front driving wheel (1) is installed at the tail of a front fork (3) through a central rotating shaft. A large lifting lug (4) is arranged upward at the front end of the front fork (3) and is connected to a rotating shaft tube (6) at the lower front end of a frame longitudinal beam (5) through a rotating shaft hinge. Small lifting lugs (7) are arranged upward at the tail of the front fork (3) corresponding to the frame longitudinal beam (5) and downward respectively. A shock absorber (8) is arranged between the upper and lower parts of the small lifting lugs (7). A seat (9) that can be adjusted forward and backward is installed on the middle part of the frame longitudinal beam (5). A transverse axis (10) is arranged on both sides of the frame longitudinal beam (5). A left operating lever (11) and a right operating lever (12) are symmetrically installed on the transverse axis (10). The left operating lever (11) and the right operating lever (12) are symmetrically installed on the left and right sides of the transverse axis (10). (12) is composed of an upper handlebar (13), a transverse axis tube (14) and a lower small swing arm (15). Two tilting shaft brackets (16) and a tilting rocker arm (17) are respectively arranged from the rear to the front below the rear part of the frame longitudinal beam (5). A tilting shaft (19) is longitudinally arranged above the center position of the frame cross beam (18). The tilting shaft bracket (16) is installed on the tilting shaft (19). Tension springs (20) are symmetrically arranged on both sides of the rear part of the frame longitudinal beam (5) corresponding to the frame cross beam (18) to connect. A steering shaft tube (21) is respectively arranged at both ends of the frame cross beam. Two rear steering wheels (2) are respectively installed on the steering shaft tube (21) through left-right symmetrical steering clevis shafts (22). A central shaft (23) is vertically arranged below the middle part of the frame cross beam (18). A steering gear (24) is installed on the central shaft (23). The steering gear (24) is provided with a left active steering rocker arm (25), a right active steering rocker arm (26), and a secondary active steering rocker arm (27), respectively; the steering horn shaft (22) is provided with an active steering knuckle arm (28) and a secondary active steering knuckle arm (29); the left active steering rocker arm (25) on the steering gear (24) and the lower small swing arm (15) on the left joystick (11) and the right active steering rocker arm (26) on the steering gear (24) and the lower small swing arm (15) on the right joystick (12) are respectively provided with a longitudinal steering ball head tie rod (30) as a ball joint The secondary steering rocker arm (27) on the steering gear (24) is connected to an active steering knuckle arm (28) on one of the steering clevis shafts (22) by a ball hinge, and an active lateral steering ball head tie rod (31) is connected to the active steering knuckle arm (28) on the left and right steering clevis shafts (22) by a ball hinge, and a secondary lateral steering ball head tie rod (32) is connected to the active steering knuckle arm (28) on the left and right steering clevis shafts (22) by a ball hinge, and a secondary steering knuckle arm (29) on one of the steering clevis shafts (22) is connected to an inclined rocker arm (17) at the lower rear of the frame longitudinal beam (5) by a lateral inclined ball head tie rod (33) by a ball hinge.

2. The positronic tricycle with a joystick that controls rear wheel steering and synchronously controls body roll according to claim 1, characterized in that: The front wheel is a front driving wheel (1), and the driving device is driven by pedaling manpower or wheel hub motor or a combination of pedaling manpower and wheel hub motor.

3. The positronic tricycle with a joystick that controls rear wheel steering and synchronously controls body roll according to claim 1, characterized in that: The seat (9) is arranged with a low center of gravity in the middle of the frame longitudinal beam (5), and a left joystick (11) and a right joystick (12) are provided on both sides of the seat (9) so as to control the steering of the rear wheels by pushing and pulling forward and backward.

4. The positronic tricycle with a joystick for controlling rear wheel steering and synchronously controlling body roll according to claim 1, characterized in that: The vehicle body can be tilted left and right, the tail of the frame longitudinal beam (5) and the tail of the frame cross beam (18) are connected by a rotating shaft hinge, and tension springs (20) are symmetrically arranged on both sides of the rear of the frame longitudinal beam (5) corresponding to the frame cross beam (18). When there is no one on the vehicle, the tension springs (20) assist the vehicle body to return to the normal position.

5. The positronic tricycle with a joystick for controlling rear wheel steering and synchronously controlling body roll according to claim 1, characterized in that: The rear wheels are two rear steering wheels (2), and the structure in which the rear steering wheels (2) are suspended from the frame crossbeam (18) can adopt an independent suspension system structure or a non-independent suspension system structure.

6. The positronic tricycle with a joystick for controlling rear wheel steering and synchronously controlling body roll according to claim 1, characterized in that: The joystick steering uses the driver's arm strength as the steering energy. The driver applies a rearward pulling force to the upper handlebar (13) of the left joystick (11), and simultaneously applies a forward thrust to the upper handlebar (13) of the right joystick (12). The force is transmitted to the secondary steering rocker arm (27) through the transverse axis tube (14), the lower small swing arm (15), the longitudinal steering ball head tie rod (30), the left active steering rocker arm (25) and the right active steering rocker arm (26). The secondary steering rocker arm (27) is transmitted to the secondary steering rocker arm (27) through the active transverse steering ball head tie rod (31). The active steering knuckle arm (28) on the connected steering clevis shaft (22) deflects the left and right steering clevis shafts (22) and the left and right rear steering wheels (2) supported by the steering clevis shafts (22) to the right through the secondary lateral steering ball head tie rod (32). At the same time, the secondary lateral steering knuckle arm (29) transmits the energy to the inclined rocker arm (17) below the rear of the frame longitudinal beam (5) through the connected lateral inclined ball head tie rod (33), so that the frame longitudinal beam (5) and the seat (9) supported by the frame longitudinal beam (5), the left joystick (11), the right joystick (12), and the front driving wheel (1) tilt to the left. The driver applies a forward thrust to the upper handlebar (13) of the left joystick (11), and at the same time applies a backward pulling force to the upper handlebar (13) of the right joystick (12). The force is transmitted to the upper handlebar (13) of the right joystick (12) through the lateral axis tube (14), the lower small swing arm (1 5), the longitudinal steering ball head tie rod (30), the left active steering rocker arm (25) and the right active steering rocker arm (26) are transmitted to the secondary steering rocker arm (27), and the secondary steering rocker arm (27) is transmitted to the active steering knuckle arm (28) on the connected steering clevis shaft (22) through the active transverse steering ball head tie rod (31), and the left and right steering clevis shafts (22) and the left and right rear steering wheels (2) supported by them are deflected to the left through the secondary transverse steering ball head tie rod (32), and at the same time, the secondary steering knuckle arm (29) is transmitted to the tilting rocker arm (17) below the rear part of the frame longitudinal beam (5) through the connected transverse tilting ball head tie rod (33), so that the frame longitudinal beam (5) and the seat (9) supported by it, the left joystick (11), the right joystick (12) and the front driving wheel (1) are tilted to the right.

7. The positronic tricycle with a joystick for controlling rear wheel steering and synchronously controlling body roll according to claim 1, characterized in that: The driver can realize the steering of the vehicle by controlling the change of his own center of gravity. The driver's body tilts to the left, and the center of gravity is tilted to the left through the frame longitudinal beam (5) and the seat (9) supported by it, the left joystick (11), the right joystick (12), and the front driving wheel (1). The tilting rocker arm (17) at the rear of the frame longitudinal beam (5) is transmitted to the connected secondary steering knuckle arm (29) through the transverse tilting ball head tie rod (33). The secondary steering knuckle arm (29) is transmitted to the active steering knuckle arm (28) on the same side, and the secondary transverse steering ball head tie rod (32) is used to rotate the vehicle. ) causes the left and right steering clevis shafts (22) and the left and right rear steering wheels (2) supported by the clevis shafts (22) to deflect to the right, and at the same time, the active steering knuckle arm (28) transmits the power to the secondary steering rocker arm (27) through the connected active transverse steering ball head tie rod (31), and the secondary steering rocker arm (27) transmits the power to the upper handlebar (13) through the left active steering rocker arm (25), the right active steering rocker arm (26), the longitudinal steering ball head tie rod (30), the lower small swing arm (15) and the transverse axis tube (14), and the upper handlebar (13) of the left operating lever (11) swings backward, and at the same time, the right operating lever (12) The upper handlebar (13) of the vehicle body swings forward; the gravity force of the driver's body tilts to the right, and the force is tilted to the right through the frame longitudinal beam (5) and the seat (9) supported by it, the left joystick (11), the right joystick (12), and the front driving wheel (1). The tilting rocker arm (17) at the rear of the frame longitudinal beam (5) is transmitted to the connected secondary steering knuckle arm (29) through the transverse tilting ball head tie rod (33). The secondary steering knuckle arm (29) transmits the force to the active steering knuckle arm (28) on the same side, and the left and right steering horn shafts (22) are turned through the secondary transverse steering ball head tie rod (32). The left and right rear steering wheels (2) supported by the steering wheel deflect to the left, and the active steering knuckle arm (28) transmits the power to the secondary steering rocker arm (27) through the connected active transverse steering ball head tie rod (31). The secondary steering rocker arm (27) transmits the power to the upper handle bar (13) through the left active steering rocker arm (25), the right active steering rocker arm (26), the longitudinal steering ball head tie rod (30), the lower small swing arm (15) and the transverse axis tube (14). The upper handle bar (13) of the left operating lever (11) swings forward, and the upper handle bar (13) of the right operating lever (12) swings backward.

Images