CN111452898A

CN111452898A - Positive tricycle with control rod controlling rear wheel to turn and synchronously controlling body to incline

Info

Publication number: CN111452898A
Application number: CN201910078431.2A
Authority: CN
Inventors: 崔志锋
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-01-17
Filing date: 2019-01-17
Publication date: 2020-07-28

Abstract

A front wheel is a front driving wheel, a rear wheel is an isosceles triangle structure with two rear steering wheels, and the tricycle is characterized in that a left active steering rocker arm on a steering gear, a lower small swing arm on the left control lever, a right active steering rocker arm on the steering gear and a lower small swing arm on the right control lever are respectively provided with a longitudinal steering ball-head pull rod which is connected by a ball hinge, a secondary active steering rocker arm on the steering gear and an active steering knuckle arm on any steering knuckle shaft are provided with an active transverse steering ball-head pull rod which is connected by a ball hinge, and a secondary active steering knuckle arm on any steering knuckle shaft and an inclined rocker arm below the rear part of a frame longitudinal beam are provided with a transverse inclined ball-head pull rod which is connected by a ball hinge. The invention ensures that the center of gravity of the driver seat is low, and the vehicle body inclines inwards when the vehicle turns, so that the vehicle can overcome the action of centrifugal force when turning at high speed, thereby keeping the stability of the vehicle when turning and being beneficial to improving the driving safety.

Description

Positive tricycle with control rod controlling rear wheel to turn and synchronously controlling body to incline

Technical Field

The invention relates to the field of vehicles, in particular to a positive tricycle with a control lever for controlling the steering of a rear wheel and synchronously controlling the side inclination of a tricycle body.

Background

At present, a regular tricycle in the market is a transportation tool formed by transforming a two-wheeled vehicle, and is widely used and favored by people due to the advantages of small volume, convenience in driving, low price and the like. The basic structure of the tricycle is an isosceles triangle of a front single steering wheel and a rear double-driving wheel, and the tricycle is composed of the front single steering wheel, a front fork, a handlebar (handle), a frame, a rear axle, the rear double-driving wheel and the like. The front fork is connected with the front end of the frame, the rear part of the frame is connected with the rear axle, and the rear axle is connected with the rear double-driving wheels. The tricycle can not incline to one side of the rotation direction under the action of self gravity when the tricycle is driven like a two-wheeled vehicle, and can not turn with low gravity when the tricycle is driven like a four-wheeled vehicle driver seat is low off the ground. The positive tricycle has good stability when parking or the vehicle speed is slow, but the tricycle is easy to cause the inclination of the tricycle body and even rollover during high-speed driving and steering.

Disclosure of Invention

In view of the above-mentioned deficiencies in the prior art, the main object of the present invention is to provide a positive tricycle in which the steering of the rear wheels is controlled by the control lever and the side inclination of the body is synchronously controlled, so as to solve the problem that the body is likely to roll over when the positive tricycle is steered or running at high speed.

The technical scheme adopted by the invention for solving the technical problems is as follows: a front wheel is a front driving wheel, a rear wheel is an isosceles triangle structure with two rear steering wheels, the front driving wheel is installed at the tail part of a front fork through a central rotating shaft, a large lifting lug is upwards arranged at the front end of the front fork and is connected with a rotating shaft tube at the lower part of the front end of a frame longitudinal beam through a rotating shaft hinge, small lifting lugs are respectively upwards arranged at the tail part of the front fork and downwards corresponding to the frame longitudinal beam, a damping hinge is arranged between the upper part and the lower part of the small lifting lug for connection, a seat capable of being adjusted front and back is installed on the middle part of the frame longitudinal beam, a cross shaft is arranged at two sides of the frame longitudinal beam, a left control rod and a right control rod are symmetrically installed at the left side and the right side of the cross shaft, the left control rod and the right control rod are composed of an upper handle rod, the cross shaft tube, an inclined rotating shaft is longitudinally arranged on the upper surface of the central position of a frame cross beam, an inclined rotating shaft bracket is arranged on the inclined rotating shaft, tension spring links are respectively arranged on the upper surface of the rear part of a frame longitudinal beam in a bilateral symmetry way corresponding to the two sides of the frame cross beam, a steering shaft tube is respectively arranged at the two ends of the frame cross beam, two rear steering wheels are respectively arranged on the steering shaft tube through bilateral symmetry steering knuckle shafts, a central rotating shaft is vertically arranged on the lower surface of the middle part of the frame cross beam, a steering gear is arranged on the central rotating shaft, a left active steering rocker arm, a right active steering rocker arm and a secondary active steering rocker arm are respectively arranged on the steering gear, an active steering knuckle arm and a secondary active steering knuckle arm are respectively arranged on the steering knuckle shafts, a left active steering rocker arm on the steering gear and a lower small swing arm on the left operating lever are respectively provided with, the secondary dynamic steering rocker arm on the steering gear is connected with the active steering knuckle arm on any steering knuckle shaft through an active transverse steering ball-end pull rod as a ball hinge, the active steering knuckle arms on the left steering knuckle shaft and the right steering knuckle shaft are connected through a secondary dynamic transverse steering ball-end pull rod as a ball hinge, and the secondary dynamic steering knuckle arm on any steering knuckle shaft is connected with the inclined rocker arm below the rear part of the frame longitudinal beam through a transverse inclined ball-end pull rod as a ball hinge.

The front wheel is a front driving wheel, and the driving device can adopt pedal manual driving, hub motor driving, pedal manual driving and hub motor mixed driving.

The control rod controls the rear wheel to steer and synchronously controls the body to incline, the low gravity center of the seat is arranged in the middle of the frame longitudinal beam, and a left control rod and a right control rod are arranged on two sides of the seat and can move back and forth by pushing and pulling to control the rear wheel to steer.

The control rod controls the rear wheels to steer and synchronously controls the body to incline, the body can incline left and right, the tail part of the frame longitudinal beam is hinged with the center position of the frame cross beam through a rotating shaft hinge, the two sides of the rear part of the frame longitudinal beam, which correspond to the frame cross beam, are respectively provided with tension spring links in bilateral symmetry, and when the vehicle is in an unmanned empty state, the tension springs assist the body to return to the right.

The control rod controls the rear wheels to steer and synchronously controls the body of the positive tricycle to incline, the rear wheels are two rear steering wheels, and the structure for suspending the rear steering wheels and the frame cross beam can adopt an independent suspension system structure and a non-independent suspension system structure.

The control rod controls the rear wheel to steer and synchronously controls the body to incline, the control rod steers by taking the arm physical power of a driver as steering energy, the driver applies a back pulling force to the upper handle rod of the left control rod and applies a front pushing force to the upper handle rod of the right control rod, the force is transmitted to the secondary steering rocker arm through the transverse shaft tube, the lower small swing arm, the longitudinal steering ball head pull 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 knuckle shaft through the active transverse steering ball head pull rod, the left and right steering knuckle shafts and the left and right rear steering wheels supported by the left and right steering knuckle shafts are deflected to the right through the secondary transverse steering ball head pull rod, and the secondary steering knuckle arm is transmitted to the inclined rocker arm below the rear part of the longitudinal beam of the frame through the connected transverse inclined ball head pull rod, so that the longitudinal beam of the frame, The left operating lever, the right operating lever and the front driving wheel incline to the left; the driver applies a forward thrust to the upper handle bar of the left control lever, and applies a backward tension to the upper handle bar of the right control lever, the force is transmitted to the secondary driving steering rocker arm through the horizontal shaft tube, the lower small swing arm, the longitudinal steering ball-end pull rod, the left driving steering rocker arm and the right driving steering rocker arm, the secondary driving steering rocker arm is transmitted to the driving steering knuckle arm on the connected steering knuckle shaft through the driving horizontal steering ball-end pull rod, the left and right steering knuckle shafts and the left and right rear steering wheels supported by the left and right steering knuckle shafts are deflected leftwards through the secondary driving horizontal steering ball-end pull rod, and the secondary driving steering knuckle arm is transmitted to the inclined rocker arm below the rear part of the frame longitudinal beam through the connected horizontal inclined ball-end pull rod, so that the frame longitudinal beam and the seat, the left control lever, the right control lever and the front driving.

The steering rod controls the steering of the rear wheels and synchronously controls the side-tipping of the tricycle body, the driver can realize the steering of the tricycle by controlling the change of the gravity force of the driver, the body of the driver inclines to the left, the force is inclined to the left through the frame longitudinal beam and the seat, the left control rod, the right control rod and the front driving wheel which are supported by the frame longitudinal beam, the inclined rocker arm below the rear part of the frame longitudinal beam is transmitted to the connected secondary dynamic steering knuckle arm through the transversely-tipping ball head pull rod, the secondary dynamic steering knuckle arm is transmitted to the active steering knuckle arm on the same side, the left steering knuckle shaft, the right steering knuckle shaft and the left and right steering rear wheels which are supported by the left and right steering knuckle shafts are deflected through the secondary dynamic steering ball head pull rod, the secondary dynamic steering arm is transmitted to the secondary dynamic steering rocker arm through the connected active transverse steering ball head pull rod, the secondary dynamic steering arm is transmitted to the upper handle rod through the left active steering rocker arm, the upper handle bar of the left operating lever swings backwards, and the upper handle bar of the right operating lever swings forwards at the same time; the gravity force of the right-inclined body of the driver is transmitted to a secondary steering knuckle arm connected with the secondary steering knuckle arm through a transversely inclined ball-head pull rod, the secondary steering knuckle arm is transmitted to an active steering knuckle arm on the same side, a left steering knuckle shaft, a right steering knuckle shaft and left and right rear steering wheels supported by the left and right steering knuckle shafts are deflected leftwards through the secondary steering knuckle arm, the active steering knuckle arm is transmitted to the secondary steering knuckle arm through the connected active transverse steering ball-head pull rod, the secondary steering knuckle arm is transmitted to an upper handle rod through the left active steering rocker arm, the right active steering rocker arm, a longitudinal steering ball-head pull rod, a lower small swing arm and a transverse shaft pipe, the upper handle rod of the left control lever swings forwards, and the upper handle rod of the right control lever swings backwards.

The invention has the advantages that the gravity center of the driver seat is low, the vehicle body inclines inwards when the vehicle turns, the synchronization of steering and inclination correction is realized, the larger the steering angle is, the larger the vehicle body inclination is, and the centrifugal force action can be overcome when the vehicle turns at a high speed, so that the stability of the vehicle when the vehicle turns is maintained, and the driving safety is improved.

Drawings

The invention will be further described with reference to the attached drawings of a tricycle in which a foot-operated and man-operated control rod controls the steering of the rear wheels and synchronously controls the side inclination of the tricycle body.

FIG. 1 is a three-dimensional schematic of the present invention.

Fig. 2 is a schematic front view of the present invention.

Fig. 3 is a schematic bottom view of the present invention.

Fig. 4 is a schematic diagram of the composition and arrangement of the mechanical steering system of the present invention.

In the figure, 1, a front driving wheel, 2, a rear steering wheel, 3, a front fork, 4, a large lifting lug, 5, a frame longitudinal beam, 6, a rotating shaft tube, 7, a small lifting lug, 8, a shock absorber, 9, a seat, 10, a transverse shaft, 11, a left operating rod, 12, a right operating rod, 13, an upper handle bar, 14, a transverse shaft tube, 15, a lower small swinging arm, 16, an inclined rotating shaft bracket, 17, an inclined rocker arm, 18, a frame transverse beam, 19, an inclined rotating shaft, 20, a tension spring, 21, a steering shaft tube, 22, a steering claw shaft, 23, a central rotating shaft, 24, a steering gear, 25, a left active steering rocker arm, 26, a right active steering rocker arm, 27, 28, an active steering knuckle arm, 29, an active steering knuckle arm, 30, a longitudinal steering ball pull rod, 31, an active transverse steering ball pull rod, 32, and 33, transverse steering pull rod are included.

Detailed Description

A control rod controlled rear wheel steering and synchronous control car body side-tipping positive tricycle, the front wheel is a front driving wheel 1, the rear wheel is an isosceles triangle structure of two rear steering wheels 2, the front driving wheel 1 is installed on the tail of the front fork 3 through the central rotating shaft, the front end of the front fork 3 is upwards provided with a big lifting lug 4 which is connected with a rotating shaft tube 6 at the lower part of the front end of a frame longitudinal beam 5 through a rotating shaft hinge, the tail of the front fork 3 is upwards provided with a small lifting lug 7 corresponding to the frame longitudinal beam 5 respectively, a damping 8 hinge is arranged between the upper part and the lower part of the small lifting lug 7, a seat 9 which can be adjusted front and back is installed on the middle part of the frame longitudinal beam 5, two sides of the frame longitudinal beam 5 are provided with a cross shaft 10, the cross shaft 10 is bilaterally and symmetrically provided with a left control rod 11 and a right control rod 12, the left control, two inclined rotating shaft brackets 16 and an inclined rocker arm 17 are respectively arranged from back to front below the rear part of the frame longitudinal beam 5, an inclined rotating shaft 19 is longitudinally arranged above the central position of a frame cross beam 18, the inclined rotating shaft brackets 16 are arranged on the inclined rotating shafts 19, tension springs 20 are respectively arranged on the rear part of the frame longitudinal beam 5 in a bilateral symmetry way and are linked with the two sides of the frame cross beam 18, two steering shaft tubes 21 are respectively arranged at the two ends of the frame cross beam, two rear steering wheels 2 are respectively arranged on the steering shaft tubes 21 through bilateral symmetry steering claw shafts 22, a central rotating shaft 23 is vertically arranged below the middle part of the frame cross beam 18, a steering gear 24 is arranged on the central rotating shaft 23, a left active steering rocker arm 25, a right active steering rocker arm 26 and a secondary active steering rocker arm 27 are respectively arranged on the steering claw shaft 22, an active steering knuckle arm 28 and a, a left active steering rocker arm 25 on a steering gear 24 is connected with a lower small swing arm 15 on a left control rod 11, a right active steering rocker arm 26 on the steering gear 24 is connected with a lower small swing arm 15 on a right control rod 12 through a longitudinal steering ball-head pull rod 30 in a ball hinge mode, a secondary active steering rocker arm 27 on the steering gear 24 is connected with an active steering knuckle arm 28 on any steering knuckle spindle 22 through an active transverse steering ball-head pull rod 31 in a ball hinge mode, the active steering knuckle arms 28 on the left and right steering knuckle spindles 22 are connected through a secondary transverse steering ball-head pull rod 32 in a ball hinge mode, and a secondary active steering knuckle arm 29 on any steering knuckle spindle 22 is connected with an inclined rocker arm 17 below the rear portion of a frame longitudinal beam 5 through a transverse inclined ball-head pull rod 33 in a ball hinge mode.

The front wheel is a front driving wheel 1, and the driving device can adopt pedal manual driving, hub motor driving, pedal manual driving and hub motor mixed driving.

The control rod controls the steering of the rear wheel and synchronously controls the side tilting of the vehicle body, the low gravity center of the seat 9 is arranged in the middle of the frame longitudinal beam 5, and a left control rod 11 and a right control rod 12 are arranged on two sides of the seat 9 and can move back and forth and pull to control the steering of the rear wheel.

The front tricycle with the control rod controlling the rear wheels to steer and synchronously controlling the side inclination of the tricycle body can incline left and right, the tail part of the frame longitudinal beam 5 is hinged with the center position of the frame cross beam 18 through a rotating shaft hinge, the two sides of the rear part of the frame longitudinal beam 5, corresponding to the frame cross beam 18, are respectively provided with the tension springs 20 in a bilateral symmetry mode for connection, and when the tricycle is in an unmanned empty state, the tension springs 20 assist the tricycle body to return to the right.

The control rod controls the rear wheels to steer and synchronously controls the body side-tipping of the positive tricycle, the rear wheels are two rear steering wheels 2, and the structure for hanging the rear steering wheels 2 and the frame cross beam 18 can adopt an independent suspension system structure and a non-independent suspension system structure.

The steering rod controls the rear wheel steering and synchronously controls the side-tipping of the vehicle body, the steering rod steering uses the arm physical force of the driver as the steering energy, the driver applies a back pulling force to the upper handle rod 13 of the left steering rod 11, and simultaneously applies a front pushing force to the upper handle rod 13 of the right steering rod 12, the force is transmitted to the secondary steering rocker 27 through the cross shaft tube 14, the lower small swing arm 15, the longitudinal steering ball rod 30, the left active steering rocker 25 and the right active steering rocker 26, the secondary steering rocker 27 is transmitted to the active knuckle arm 28 on the connected steering goat shaft 22 through the active transverse steering ball rod 31, the left and right steering goat shafts 22 and the left and right rear steering wheels 2 supported by the secondary steering goat shaft 32 are deflected to the right through the secondary transverse steering ball rod 32, and the secondary steering knuckle arm 29 is transmitted to the tipping rocker 17 below the rear part of the frame longitudinal beam 5 through the connected transverse tipping rod 33, the frame longitudinal beam 5 and the seat 9, the left operating lever 11, the right operating lever 12 and the front driving wheel 1 supported by the frame longitudinal beam are inclined to the left; the driver applies a forward pushing force to the upper handle 13 of the left operating lever 11, and simultaneously applies a backward pulling force to the upper handle 13 of the right operating lever 12, the force is transmitted to a secondary dynamic steering rocker arm 27 through a cross shaft tube 14, a lower small swing arm 15, a longitudinal steering ball rod 30, a left active steering rocker arm 25 and a right active steering rocker arm 26, the secondary dynamic steering rocker arm 27 is transmitted to an active steering knuckle arm 28 on a connected steering knuckle spindle 22 through an active transverse steering ball rod 31, the left and right steering ram shafts 22 and the left and right rear steering wheels 2 supported by them are deflected to the left by the secondary transverse steering ball tie rods 32, at the same time, the secondary steering knuckle arm 29 is connected via a connected transverse tilting ball tie rod 33 to the tilting rocker arm 17 underneath the rear part of the frame rail 5, so that the frame rail 5 and the seat 9, the left actuating lever 11, the right actuating lever 12 and the front drive wheel 1 supported by it are tilted to the right.

The driver can realize the vehicle steering by controlling the change of the gravity force of the driver, the gravity force of the driver leaning to the left can be controlled by controlling the change of the gravity force of the driver, the force is transmitted to the left by the frame longitudinal beam 5 and the seat 9 supported by the frame longitudinal beam 5, the left control rod 11, the right control rod 12 and the front driving wheel 1, the inclined rocker arm 17 below the rear part of the frame longitudinal beam 5 is transmitted to the connected secondary steering knuckle arm 29 by the transversely inclined ball-head pull 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 claw shafts 22 and the left and right rear steering wheels 2 supported by the secondary steering knuckle arm 32 are deflected to the right by the secondary steering ball-head pull rod 32, the active steering knuckle arm 28 is transmitted to the secondary steering rocker arm 27 by the connected active transverse steering ball-head pull rod 31, and the secondary steering arm 27 is transmitted to the left and right steering wheels by, The right driving steering rocker 26, the longitudinal steering ball head pull rod 30, the lower small swing arm 15 and the transverse shaft pipe 14 are transmitted to the upper handle bar 13, the upper handle bar 13 of the left control lever 11 swings backwards, and meanwhile, the upper handle bar 13 of the right control lever 12 swings forwards; the gravity force of the right-hand inclination of the body of the driver is transmitted to a secondary active steering knuckle arm 29 through a transversely inclined ball-head pull rod 33 through a frame longitudinal beam 5 and a seat 9, a left operating lever 11, a right operating lever 12 and a front driving wheel 1 which are supported by the frame longitudinal beam 5, the secondary active steering knuckle arm 29 is transmitted to an active steering knuckle arm 28 on the same side, a left and right steering knuckle shaft 22 and left and right rear steering wheels 2 which are supported by the frame longitudinal beam 5 are deflected to the left through a secondary active transverse steering ball-head pull rod 32, the active steering knuckle arm 28 is transmitted to a secondary active steering knuckle arm 27 through a connected active transverse steering ball-head pull rod 31, the secondary active steering arm 27 is transmitted to an upper handle 13 through a left active steering arm 25, a right active steering arm 26, a longitudinal steering ball-head pull rod 30, a lower small swing arm 15 and a transverse shaft pipe 14, the upper handle 13 of the left operating lever 11 swings forwards, while the upper stick 13 of the right operating lever 12 swings backward.

Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art will appreciate that various modifications and equivalent arrangements can be made without departing from the spirit and scope of the present invention as defined in the appended claims.

Claims

1. A front wheel is a front driving wheel (1), a rear wheel is an isosceles triangle structure with 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 upwards arranged at the front end of the front fork (3) and is connected with a rotating shaft tube (6) at the lower part of the front end of a frame longitudinal beam (5) through a rotating shaft hinge, small lifting lugs (7) are respectively arranged at the tail of the front fork (3) upwards and downwards corresponding to the frame longitudinal beam (5), a shock absorption hinge (8) is arranged between the upper part and the lower part of each small lifting lug (7) for hinge connection, a seat (9) capable of being adjusted front and back is installed on the middle part of the frame longitudinal beam (5), a transverse shaft (10) is respectively arranged at two sides of the frame longitudinal beam (5), a left control lever (11) and a right control lever (12) are installed on, the left control lever (11) and the right control lever (12) are composed of an upper handle bar (13), a transverse shaft pipe (14) and a lower small swing arm (15), two inclined rotating shaft brackets (16) and an inclined rocker arm (17) are respectively arranged from back to front below the rear part of the frame longitudinal beam (5), an inclined rotating shaft (19) is longitudinally arranged above the central position of the frame cross beam (18), the inclined rotating shaft brackets (16) are arranged on the inclined rotating shaft (19), tension springs (20) are respectively arranged on the upper part of the rear part of the frame longitudinal beam (5) and are symmetrically connected with each other in a left-right mode corresponding to the two sides of the frame cross beam (18), two steering shaft pipes (21) are respectively arranged at two ends of the frame cross beam, two rear steering wheels (2) are respectively arranged on the steering shaft pipes (21) through the symmetrically-left steering claw shafts (22), a central rotating shaft (23) is vertically arranged below the middle part of the, a left active steering rocker arm (25), a right active steering rocker arm (26) and a secondary active steering rocker arm (27) are respectively arranged on a steering gear (24), an active steering knuckle arm (28) and a secondary active steering knuckle arm (29) are arranged on a steering knuckle shaft (22), a longitudinal steering ball head pull rod (30) is respectively arranged on the left active steering rocker arm (25) on the steering gear (24) and a lower small swing arm (15) on a left control lever (11) and the right active steering rocker arm (26) on the steering gear (24) and a lower small swing arm (15) on a right control lever (12) and is in ball hinge connection, the secondary active steering rocker arm (27) on the steering gear (24) and the active steering knuckle arm (28) on any steering knuckle shaft (22) are respectively provided with an active transverse steering ball head pull rod (31) which is in ball hinge connection, the active steering knuckle arms (28) on the left and right steering knuckle shafts (22) are respectively provided with a secondary active transverse steering ball head pull rod (32) which is in ball hinge connection, a secondary movable steering knuckle arm (29) on any steering claw shaft (22) is connected with an inclined rocker arm (17) below the rear part of the frame longitudinal beam (5) through a transverse inclined ball head pull rod (33) in a ball hinge mode.

2. The positive tricycle with the joystick for controlling the steering of the rear wheel and synchronously controlling the side inclination of the tricycle body according to claim 1 is characterized in that the front wheel is a front driving wheel (1), and the driving device can adopt pedal manpower driving, hub motor driving, and pedal manpower and hub motor hybrid driving.

3. The positive tricycle with joystick for steering rear wheels and synchronous body roll control according to claim 1, characterized in that the low center of gravity of the seat (9) is located in the middle of the frame rail (5), and a left joystick (11) and a right joystick (12) are provided on both sides of the seat (9) for controlling the steering of the rear wheels in a push-pull movement.

4. The positive tricycle controlling the steering of the rear wheels and synchronously controlling the side inclination of the tricycle body by the operating rod according to claim 1 is characterized in that the tricycle body can incline left and right, the tail part of the frame longitudinal beam (5) is hinged with the tail part of the frame cross beam (18) by a rotating shaft hinge, the tension springs (20) are symmetrically arranged on the rear part of the frame longitudinal beam (5) left and right corresponding to the two sides of the frame cross beam (18) and are hinged, and when the tricycle is in an empty state, the tension springs (20) assist the tricycle body to return to the right.

5. The positive tricycle with the control rod controlling the steering of the rear wheels and synchronously controlling the side inclination of the tricycle body according to claim 1 is characterized in that the rear wheels are two rear steering wheels (2), and the structure for suspending the rear steering wheels (2) and the frame cross member (18) can adopt an independent suspension system structure and a non-independent suspension system structure.

6. The positive tricycle with joystick-controlled rear wheel steering and synchronous body roll control according to claim 1, characterized in that the joystick steering uses the driver's arm force as the steering energy, the driver applies a rear pulling force to the upper handle bar (13) of the left joystick (11) and simultaneously applies a forward pushing force to the upper handle bar (13) of the right joystick (12), the forces are transmitted to the secondary steering rocker (27) through the lateral shaft tube (14), the lower small swing arm (15), the longitudinal steering ball rod (30), the left active steering rocker (25) and the right active steering rocker (26), the secondary steering rocker (27) is transmitted to the active steering knuckle arm (28) on the connected steering goat shaft (22) through the active lateral steering ball rod (31), and the left and right steering goat shafts (22) and the left and right rear steering wheels (2) supported by the secondary lateral steering ball rod (32) are deflected to the right, meanwhile, a secondary power steering knuckle arm (29) is transmitted to an inclined rocker arm (17) below the rear part of the frame longitudinal beam (5) through a connected transversely inclined ball head pull rod (33), so that the frame longitudinal beam (5) and a seat (9), a left operating lever (11), a right operating lever (12) and a front driving wheel (1) supported by the frame longitudinal beam are inclined to the left; the driver applies a forward thrust to the upper handlebar (13) of the left control lever (11) and applies a backward tension to the upper handlebar (13) of the right control lever (12), the forces are transmitted to the secondary steering rocker (27) through the transverse shaft tube (14), the lower small swing arm (15), the longitudinal steering ball rod (30), the left active steering rocker (25) and the right active steering rocker (26), the secondary steering rocker (27) is transmitted to the active steering knuckle arm (28) on the connected steering knuckle spindle (22) through the active transverse steering ball rod (31), the left and right steering knuckle spindles (22) and the left and right rear steering wheels (2) supported by the secondary steering knuckle spindle (27) are deflected leftwards through the secondary transverse steering ball rod (32), and the secondary steering knuckle arm (29) is transmitted to the inclined rocker (17) below the rear part of the frame longitudinal beam (5) through the connected transverse inclined ball rod (33), the frame side member (5) and the seat (9), the left operating lever (11), the right operating lever (12) and the front driving wheel (1) supported by the frame side member are tilted to the right.

7. Positive tricycle with joystick-controlled rear wheel steering and synchronous body roll control according to claim 1, characterised in that the driver steers the vehicle by controlling the change of his own gravity force, that the driver's body tilts the gravity force to the left, that the force is transferred to the left by the frame rail (5) and the seat (9) supported by it, the left joystick (11), the right joystick (12) and the front driving wheel (1), that the tilting rocker (17) under the rear part of the frame rail (5) is transferred to the secondary active steering knuckle arm (29) connected by a tilting ball tie (33), that the secondary active steering knuckle arm (29) is transferred to the active steering knuckle arm (28) on the same side, that the left and right steering knuckle axles (22) and the left and right rear steering wheels (2) supported by it are deflected to the right by the secondary active steering knuckle tie (32), and that the active steering knuckle arm (28) is transferred to the secondary steering knuckle arm (27) by the active steering tie (31) connected to it The secondary motion 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-end pull rod (30), the lower small swing arm (15) and the transverse shaft tube (14), the upper handlebar (13) of the left control lever (11) swings backwards, and the upper handlebar (13) of the right control lever (12) swings forwards; the gravity force of the right-inclined body of the driver is rightwards inclined through a frame longitudinal beam (5) and a seat (9), a left operating lever (11), a right operating lever (12) and a front driving wheel (1) which are supported by the frame longitudinal beam, an inclined rocker arm (17) below the rear part of the frame longitudinal beam (5) is transmitted to a secondary movable steering knuckle arm (29) which is connected with the inclined rocker arm through a transversely-inclined ball-head pull rod (33), the secondary movable steering knuckle arm (29) is transmitted to an active steering knuckle arm (28) on the same side, a left steering knuckle shaft (22), a right steering knuckle shaft (22) and left and right rear steering wheels (2) which are supported by the secondary movable steering knuckle pull rod (32) are deflected leftwards, the active steering knuckle arm (28) is transmitted to the secondary movable steering rocker arm (27) through an active transverse-steering ball-head pull rod (31) which is connected with the inclined rocker arm (27), and the secondary movable steering rocker arm (27) is transmitted to the secondary movable steering, The lower small swing arm (15) and the transverse shaft tube (14) are transmitted to the upper handle bar (13), the upper handle bar (13) of the left operating lever (11) swings forwards, and the upper handle bar (13) of the right operating lever (12) swings backwards at the same time.