CN210555338U - Inverted tricycle - Google Patents

Abstract

The utility model relates to a tricycle, comprising a front tricycle body, a rear tricycle body, a front wheel and a rear wheel, wherein the front tricycle body comprises a T rod, a front vertical pipe, a toe-in, a left shoulder, a right shoulder, a left front fork, a right front fork, a left front wheel and a right front wheel, and a left universal joint is arranged on a wheel shaft of the left front wheel; a right universal joint is arranged on a wheel shaft of the right front wheel, and a left connecting rod and a right connecting rod are arranged on the lower side of the front vehicle body; a central bracket is arranged at the lower side of the rear vehicle body; one end of the left universal joint is connected with the inner side of the wheel shaft of the left front wheel, and the other end of the left universal joint is connected with the central support through the left connecting rod; one end of the right universal joint is connected with the inner side of the wheel shaft of the right front wheel, and the other end of the right universal joint is connected with the central support through the right connecting rod; the left connecting rod and the right connecting rod are the same in length; the utility model discloses no matter go straight or cross curved, no matter at a slow speed still in the slippery road conditions, safety and stability is difficult for empting all the time.

Description

Inverted tricycle

Technical Field

The utility model relates to a vehicle technical field, concretely relates to safe, stable and difficult tricycle that falls who emptys.

Background

The bicycle is as a green's vehicle, generally used in our daily life, but the instability of bicycle is double round then brought the potential safety hazard for people's daily trip, consider the safety and stability that the bicycle was gone at low-speed or when the slippery road surface was gone, tricycle especially falls the tricycle and receives people's more and more attention, common tricycle falls in the existing market, when crossing the turn or rotating the handlebar, the operation is comparatively stiff, can't keep stability all the time, some then the structure is complicated, and is with high costs, the reliability is poor.

The YL structure inverted tricycle disclosed by Chinese patent document with application number 201720228148.X comprises a driving rear wheel, a driven front wheel, a frame and a driving device; the front body of the bicycle comprises a suspension, a suspension shaft, a pull rod shaft and a handle; the driven wheel is a front wheel, the number of the driven wheels is two, the pull rod is connected below the frame in a shaft mode, the pull rod comprises a left connecting rod and a right connecting rod, one end of the left connecting rod and one end of the right connecting rod are respectively connected to the pull rod shaft, the other end of the left connecting rod and the other end of the right connecting rod are respectively hinged to wheel shafts of the two driven wheels, the device is safe and stable on wet and slippery road surfaces or in slow running, the matching structure of the left connecting rod, the right connecting rod and the pull rod shaft is not concise, when a handlebar is bent or rotated, the operation is rigid, and the stability is easy to damage, so that the vehicle can topple.

The inverted tricycle with application number 201820162968.8 disclosed in the Chinese patent document comprises a driving rear wheel, a driven front wheel, a frame and a driving device; the front vehicle body comprises a front vertical pipe, a front fork, a cross rod, a central support, a central suspension, a left pull rod, a right pull rod and a handle; the driven wheel is a front wheel, the number of the driven wheels is two, the two driven wheels of the device are always parallel, the turning angles are always the same, and the turning of the three wheels is not concentric, so that axial interference force can be generated.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that prior art exists, the utility model provides a safe, stable and difficult tricycle that falls of empting, the turned angle of preceding automobile body, two front forks including more succinct back automobile body, shoulder about being equipped with has had the toe-in control, and the turn orbit is more perfect, and in addition two independent handles, whole car is more scientific and reasonable. The utility model discloses at the in-process of traveling, three wheel remains isosceles triangle's state throughout to according to the angle of adjustment of preceding riser, the automobile body can control the angle to the heart of curvature slope when the turn, makes its vehicle focus more be close to the center of three wheel, and the safety and stability is difficult for empting.

The utility model aims at providing a tricycle that falls, including preceding automobile body, back automobile body, front wheel and rear wheel, preceding automobile body with the back automobile body links to each other, front wheel with the back wheel is installed respectively on preceding automobile body and the back automobile body; the front vehicle body comprises the left shoulder, the right shoulder, the left front fork, the right front fork and the left handle, the left front fork and the right handle are sleeved on the left shoulder and the right shoulder, the front vehicle body comprises the toe-in and the T rod, the front wheels comprise a left front wheel and a right front wheel, and a left universal joint is arranged on a wheel shaft of the left front wheel; a right universal joint is arranged on a wheel shaft of the right front wheel, and a left connecting rod and a right connecting rod are arranged on the lower side of the front vehicle body; the rear car body is provided with a longer lower beam, so that longitudinal beams are reduced, the central support is convenient to mount, the rear car body is easy to get on and off, and the rear car body is easy to process into a folding car body; one end of the left universal joint is connected with the inner side of the wheel shaft of the left front wheel, and the other end of the left universal joint is connected with the central support through the left connecting rod; one end of the right universal joint is connected with the inner side of the wheel shaft of the right front wheel, and the other end of the right universal joint is connected with the central support through the right connecting rod; the left connecting rod and the right connecting rod are identical in length. When the left shoulder and the left front fork are fixed with each other or the right shoulder and the right front fork are fixed with each other, the left handle and the right handle are pulled forwards and backwards to realize steering.

In the process of straight line driving of the vehicle, the left universal joint, the right universal joint and the central support form an isosceles triangle, the vehicle body is stable, three wheels land at three points, and the vehicle is always safe and stable no matter in a slow speed or a slippery road condition; when the vehicle is bent, the two front wheels are independent and limited by the toe-in, a speed difference and a common bending center can be formed, the left universal joint and the right universal joint are tensioned by the left connecting rod and the right connecting rod, the structural state of the isosceles triangle is always kept unchanged, and the vehicle is stably bent and is not easy to roll over; the splayed angle of the left wheel and the right wheel stabilizes the vehicle body and strengthens the straight line driving performance; the utility model discloses no matter go straight or cross curved, no matter in slow speed still in the slippery road conditions, all the time safety and stability just is difficult for empting.

The utility model discloses in, one side that the shaft of preceding wheel is close to preceding riser does the shaft is inboard, and one side of keeping away from preceding riser is the shaft outside.

In order to control the vehicle to steer and enable the steering action to be transmitted to the steering executing device, the preferable technical proposal is that the front vehicle body is provided with a steering control device and a steering executing device, and the steering control device is a handlebar and a toe; the handlebar is connected to the steering executing device; the steering executing device is connected with the front wheels.

In order to smoothly transmit the vehicle steering operation to the two front wheels, the preferred technical proposal is that the steering executing device comprises a T rod, a left front fork, a right front fork, a left front shoulder, a right front pipe and a front vertical pipe, wherein the vertical part of the T rod is sleeved with the front vertical pipe; the left front fork and the right front fork are arranged in the vertical sleeves of the left front shoulder and the right front shoulder, and the horizontal sleeves of the left front shoulder and the right front shoulder are respectively sleeved at two ends of the T-shaped rod; the lower end of the left front fork is connected to the wheel axle of the left front wheel, and the lower end of the right front fork is connected to the wheel axle of the right front wheel.

The front vertical pipe can play a role in fixing and bearing; the vertical part of the T rod is sleeved in the front vertical pipe, the T rod is parallel to the road surface when moving straight, and the left front fork and the right front fork are obliquely arranged relative to the road surface, so that the straight stability of the vehicle is further enhanced on the basis of ensuring the steering operability; the left front fork and the right front fork are provided with the vibration damping device, so that the vibration of a vehicle can be effectively reduced, the comfort level of the vehicle is improved, and the middle support can be set to horizontally swing for better adapting to uneven road surfaces.

In order to enable the vehicle to be more stable and not prone to toppling during steering, the preferable technical scheme is that the left shoulder and the right shoulder are respectively provided with a sleeve, the two sleeves are respectively sleeved at two ends of the T-shaped rod, during turning, the sleeves can rotate around the horizontal axis of the T-shaped rod, and the T-shaped pipe rotates around the vertical axis of the front vertical pipe.

When the inverted tricycle is bent over, the inclination degree of the inner side front fork relative to the T rod is larger than that of the outer side front fork relative to the T rod, so that the outer side height of the T rod is larger than the inner side height, the steering centrifugal force of the tricycle is reduced, and the bending stability of the tricycle is enhanced.

In order to ensure that the front vehicle body is connected with the rear vehicle body more firmly and the front vertical pipe can be perpendicular to the road surface to finely adjust the front and rear angles, the preferable technical scheme is that the front vehicle body comprises the front vertical pipe and a welding pore plate, the rear vehicle body comprises the rear vertical pipe and a processed pore groove, the pore plate of the front vertical pipe is inserted into the pore groove of the rear vertical pipe and is connected by a pin shaft, and in order to achieve the best controllability, the front vertical pipe and the road surface can be adjusted by a certain angle.

The rear vehicle body is provided with a rear vertical pipe and a longitudinal beam which are integrated, and the seat pipe is welded on the longitudinal beam; a seat is arranged at the top end of the seat tube; the middle part of the rear vertical pipe is provided with a cup stand; a battery space is arranged on the longitudinal beam; a basket is arranged in front of the front vertical pipe.

A vibration damping device is arranged in the middle of the longitudinal beam or the rear vehicle body; the damping device can effectively improve the vehicle buffering effect and improve the comfort level.

In order to brake the vehicle, the preferable technical scheme is that a brake control device is arranged on the front vehicle body, a front brake execution device is arranged on the front wheel, and a rear brake execution device is arranged on the rear wheel; and the front brake executing device and the rear brake executing device are both connected with the brake control device.

In order to make the braking effect of the braking device more obvious and the operation of the braking device easy, the braking control device comprises a front braking handle, a rear braking handle, a front braking pull wire and a rear braking pull wire; two ends of the front brake pull wire are respectively connected with the front brake grip and the front brake executing device; two ends of the rear brake pull wire are respectively connected with the rear brake grip and the rear brake executing device; the front brake grip and the rear brake grip are both arranged on the handlebar.

And brake stay wire fixing supports are arranged on the front vehicle body and the rear vehicle body. The front brake executing device and the rear brake executing device are C-type brake, V-type brake, band-type brake or disc-type brake.

In order to provide power for a vehicle and enable the power of the vehicle to be smoothly transmitted to a rear wheel, the preferable technical scheme is that the left front wheel and the right front wheel are driven wheels, the left front wheel and the right front wheel can also be used as driving wheels when a hub motor is used, the rear wheel is a driving wheel, a power device and a transmission device are arranged on a rear vehicle body, two ends of the transmission device are respectively connected with the power device and the rear wheel, and the rear wheel can also be directly driven by the hub motor.

And mud guards are arranged above the left front wheel, the right front wheel and the rear wheel.

In order to be able to provide power for the vehicle, it is preferable if the power unit is driven manually or electrically.

The manual drive comprises a pedal and a pedal shaft, and two ends of the pedal shaft are respectively connected with the transmission device and the pedal; the transmission device comprises a chain wheel, a transmission chain and a flywheel, and the chain wheel is arranged on the rear vehicle body and connected with the power device; the flywheel is arranged on the rear wheel and is connected with the rear wheel; the chain wheel is connected with the flywheel through the transmission chain. The chain wheel and the flywheel both comprise a plurality of chain wheels, and the proper transmission ratio can be selected through the matching of different chain wheels. The transmission device further comprises a dial, a pull wire and a rear dial, wherein two ends of the pull wire are respectively connected with the dial and the rear dial, the dial is arranged on the handlebar, and the rear dial is arranged on the transmission chain. The number of the fingers is two, and the two fingers are respectively arranged on the left handle and the right handle of the handlebar; the backward dialing can adjust the transmission ratio of the chain wheel connected with the transmission chain and the flywheel; and the front vehicle body and the rear vehicle body are both provided with stay wire fixing supports.

The electric drive comprises a storage battery, a motor and a controller, wherein the storage battery, the motor and the controller are all arranged on the rear vehicle body, the motor is connected with the transmission device or directly driven by a hub, and the hub can be driven by a front wheel, a rear wheel or an all-wheel during driving.

The utility model has the advantages that:

1. the utility model provides a fall tricycle, including the back automobile body that is equipped with central support, be equipped with about the connecting rod preceding automobile body, rear wheel and be equipped with the preceding wheel of universal joint, the one end of left and right connecting rod all links to each other with central support, and the other end links to each other with left and right universal joint respectively, the utility model discloses at the in-process of traveling, control universal joint and central support, keep three isosceles state all the time, its focus is close to the front wheel, and safety and stability just is difficult for empting.

2. The front vertical pipe is welded with a pore plate, the rear vertical pipe of the rear vehicle body is provided with an upper pin shaft hole, a lower pin shaft hole and a pore plate groove, the front vertical pipe is connected with the rear vehicle body through a pin shaft, the front vehicle body is connected with the rear vehicle body more stably, the vehicle is safe and reliable, the front vertical pipe is close to a road surface perpendicular to the road surface and can adjust the angle, and the steering operability is enhanced.

3. The steering control device is provided with a handlebar, the steering execution device comprises a T rod, a left front fork, a right front fork, a left shoulder and a right shoulder, and a toe-in, so that the linear stability of the vehicle is enhanced on the basis of ensuring the steering operability of the vehicle; the left front fork and the right front fork can be respectively sleeved into the left shoulder and the right shoulder to rotate in the vertical sleeve, the transverse sleeves of the left shoulder and the right shoulder can rotate about the transverse axis of the T rod, the over-bending centrifugal force of the vehicle is reduced, and the steering stability of the vehicle is enhanced.

4. The vehicle speed regulation device is provided with a power device for providing kinetic energy for the vehicle, and a transmission device for fully transmitting the kinetic energy, and the vehicle can regulate the speed, and is convenient and quick to adjust and operate.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a front view of the present invention;

FIG. 3 is a side view of the present invention;

FIG. 4 is a simple T-bar drawing of the present invention

FIG. 5 is a schematic view of the left shoulder of the present invention

Reference numerals

1-a front vehicle body; 11-a steering control device; 111-right handlebar; 112 left handlebar; 113-toe; 12-a steering actuator; a 121-T rod; 122-right front fork; 123-left front fork; 124-right gimbal; 125-left gimbal; 128-left shoulder; 127-right shoulder; 15-front brake actuator; 10-a front riser; 17-a brake control device; 171 front brake grip; 172-rear brake grip; 18-a connecting rod; 181-right connecting rod; 182-left connecting rod; 2-rear vehicle body; 21-rear riser; 22-a central support; 23-a power plant; 231-pedal shaft; 232-treading; 24-a transmission; 241-a dental disc; 242-a drive chain; 243-dial back; 244-a flywheel; 245-dial; 25-rear brake actuator; 3-front wheels; 31-right front wheel; 32-left front wheel; 4-rear wheel; 5-a mudguard; 6-a seat; 7-a cup stand; 8-a bicycle basket.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1, 2 and 3, the vehicle comprises a front vehicle body 1, a rear vehicle body 2, a front wheel 3 and a rear wheel 4, wherein the front vehicle body 1 is connected with the rear vehicle body 2, and the front wheel 3 and the rear wheel 4 are respectively arranged on the front vehicle body 1 and the rear vehicle body 2; the front wheels 3 comprise a left front wheel 32 and a right front wheel 31, and a left universal joint 125 is arranged on a wheel axle of the left front wheel 32; a right universal joint 124 is arranged on a wheel axle of the right front wheel 31, and a left connecting rod 182 and a right connecting rod 181 are arranged on the lower side of the front vehicle body 1; a central bracket 22 is arranged at the lower side of the rear vehicle body 2; one end of the left universal joint 125 is connected to the inner side of the wheel axle of the left front wheel 32, and the other end is connected to the center bracket 22 through the left connecting rod 182; one end of the right universal joint 124 is connected with the inner side of the wheel axle of the right front wheel 31, and the other end is connected with the central bracket 22 through the right connecting rod 181; the left and right connection bars 182 and 181 have the same length.

The front vehicle body 1 is provided with a steering control device 11 and a steering execution device 12, the steering control device 11 comprises a left handlebar 112, a right handlebar 111 and a toe-in 113, the handlebars are connected to the steering execution device 12, and the steering execution device 12 is connected with the front wheel 3.

The steering executing device 12 comprises a T rod 121, a left front fork 123 and a right front fork 122, wherein the middle part of the T rod 121 is connected with the front vertical pipe 10; the left front fork 123 and the right front fork 122 are obliquely arranged at two ends of the T rod 121, and the upper ends of the left front fork 123 and the right front fork 122 are respectively connected with two ends of the T rod 121; the lower end of the left front fork 123 is connected to the axle of the left front wheel 32, and the lower end of the right front fork 122 is connected to the axle of the right front wheel 31.

The T rod 121 is parallel to the road surface when running straight, and the left front fork 123 and the right front fork 122 are obliquely arranged relative to the road surface; and the left front fork 123 and the right front fork 122 are provided with vibration damping devices.

The upper ends of the left front fork 123 and the right front fork 122 are respectively sleeved on a left shoulder 127 and a right shoulder 128, the two left shoulders 127 and the two right shoulders 128 are respectively sleeved on two ends of the T-bar 121, and the left shoulder 127 and the right shoulders 128 can rotate around the axis of the T-bar 121.

The front vehicle body 1 comprises a front vertical pipe 10, the rear vehicle body 2 comprises a rear vertical pipe 21, the front vertical pipe 10 is clamped on the rear vertical pipe 21, and the angle of the front vertical pipe 10 perpendicular to the road surface can be slightly adjusted; the front vertical pipe 10 and the rear vertical pipe 21 are connected with a pin shaft through a clamping groove.

The rear vehicle body 2 is provided with an integrated rear vertical pipe and a longitudinal beam; a seat 6 is arranged at the top end of the seat tube; the middle part of the longitudinal beam is provided with a vibration damper or a folding device; the rear vertical pipe is provided with a cup stand 7; a bicycle basket 8 is arranged in front of the front vertical pipe 10.

A brake control device 17 is arranged on the front vehicle body 1, a front brake executing device 15 is arranged on the front wheel 3, and a rear brake executing device 25 is arranged on the rear wheel 4; the front brake actuator 15 and the rear brake actuator 25 are both connected to the brake control device 17.

The brake control device 17 comprises a front brake handle 171, a rear brake handle 172, a front brake pull wire and a rear brake pull wire; both ends of the front brake pull wire are respectively connected with the front brake grip 171 and the front brake executing device 15; the two ends of the rear brake pull wire are respectively connected with the rear brake handle 172 and the rear brake executing device 25; the front brake grip 171 and the rear brake grip 172 are respectively provided on the handlebars 111 and 112.

And a plurality of brake pull wire fixing supports are arranged on the front vehicle body 1 and the rear vehicle body 2. The front brake executing device 15 and the rear brake executing device 25 are C-type brake, V-type brake, hub brake or disc brake.

The left front wheel 32 and the right front wheel 31 are driven wheels or electric wheels, the rear wheel 4 is a driving wheel or an electric wheel, the rear vehicle body 2 is provided with a power device 23 and a transmission device 24, and two ends of the transmission device 24 are respectively connected with the power device 23 and the rear wheel 4.

And mud guards 5 are arranged above the left front wheel 32, the right front wheel 31 and the rear wheel 4.

The power device 23 is driven by manpower or electricity, and can also directly drive the front wheel 3 and/or the rear wheel 4 by the hub motor.

The manual drive comprises pedals 232 and pedal shafts 231, and two ends of the pedal shafts 231 are respectively connected with the transmission device 24 and the pedals 232; the transmission device 24 comprises a chain wheel 241, a transmission chain 242 and a flywheel 244, wherein the chain wheel 241 is arranged on the rear vehicle body 2 and is connected with the pedal shaft 232; the flywheel 244 is provided on the rear wheel 4 and connected to the rear wheel 4; the chain wheel 241 is connected to the flywheel 244 via the transmission chain 242.

The toothed plate 241 and the flywheel 244 are each provided with a plurality of toothed plates.

The transmission device 24 further includes a dial 245, a pull wire and a rear dial 243, two ends of the pull wire are respectively connected with the dial 245 and the rear dial 243, the dial 245 is disposed on the handlebars 111 and 112, and the rear dial 243 is disposed on the transmission chain 242. The rear dial 243 is arranged on the transmission chain 242, and the rear dial 243 can adjust the transmission chain 242 so as to adjust the transmission ratio of the chain wheel 241 and the flywheel 244; and a plurality of stay wire fixing brackets are arranged on the front vehicle body 1 and the rear vehicle body 2.

The working principle is as follows:

when the vehicle runs in a straight line, the power device 23 provides kinetic energy and transmits the kinetic energy to the rear wheels 4 through the transmission device 24, and the rear wheels 4 form driving wheels; the handlebars 111 and 112 are kept straight, the left connecting rod 182, the right connecting rod 181 and the center bracket 22 form an isosceles triangle, and the vehicle is kept stable.

When the vehicle turns, the handlebar 111 or 112 is pulled back and forth, the T rod 121 rotates in the front vertical tube 10, the front fork 123 or 122 rotates along with the handlebar, the left connecting rod 182 and the right connecting rod 181 respectively tighten one end of the left universal joint 125 and one end of the right universal joint 124, the left front fork 123 and the right front fork 122 form a speed and angle difference due to the action of the front beam 113, the vehicle starts to turn, the state of an isosceles triangle formed by the left connecting rod 182, the right connecting rod 181 and the central bracket 22 is basically unchanged during the turning process, the left front fork 123 and the right front fork 122 rotate for a certain angle relative to the horizontal axis of the T rod 121, the height of the inner side of the T rod 121 is smaller than the height of the outer side of the T rod 121, and the vehicle inclines to the inner side, so.

When braking, the front brake grip 171 and the rear brake grip 172 are tightened, the front brake grip 171 and the rear brake grip 172 respectively pull the front brake cable and the rear brake cable, and the front brake executing device 15 and the rear brake executing device 25 respectively brake the front wheel 3 and the rear wheel 4;

when the power device is driven by manpower and performs speed regulation, the finger dial 245 is dialed, the pull wire pulls the rear dial 243, the rear dial 243 adjusts the transmission chain 242, and then the chain wheel 241 and the flywheel 244 are selected to be in a proper transmission ratio.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (10)

1. A tricycle with a reverse structure comprises a front tricycle body (1), a rear tricycle body (2), a front wheel (3) and a rear wheel (4), wherein the front tricycle body (1) is connected with the rear tricycle body (2), the front wheel (3) and the rear wheel (4) are respectively installed on the front tricycle body (1) and the rear tricycle body (2), and the tricycle is characterized in that the front tricycle body (1) comprises a left handlebar (112), a right handlebar (111), a left shoulder (128) and a right shoulder (127); the front wheels (3) comprise a left front wheel (32) and a right front wheel (31), and a left universal joint (125) is arranged on a wheel axle of the left front wheel (32); a right universal joint (124) is arranged on a wheel shaft of the right front wheel (31), and a left connecting rod (182) and a right connecting rod (181) are arranged on the lower side of the front vehicle body (1); a central bracket (22) is arranged at the lower side of the rear vehicle body (2); one end of the left universal joint (125) is connected with the inner side of the wheel shaft of the left front wheel (32), and the other end of the left universal joint is connected with the central bracket (22) through the left connecting rod (182); one end of the right universal joint (124) is connected with the inner side of the wheel shaft of the right front wheel (31), and the other end of the right universal joint is connected with the central bracket (22) through the right connecting rod (181); the left connecting rod (182) and the right connecting rod (181) are the same in length.

2. The tricycle according to claim 1, characterised in that the front body (1) is provided with a steering control device (11) and a steering actuation device (12), the steering control device (11) comprising a left handlebar (112), a right handlebar (111), a toe (113); the lower end of the left handlebar (112) is connected with the upper end of a left front fork (123), the lower end of the right handlebar (111) is connected with the upper end of a right front fork (122), and the steering execution device (12) is connected with the front wheel (3).

3. The tricycle according to claim 2, characterised in that the steering actuation means (12) comprise a T-bar (121), a left fork (123) and a right fork (122), the vertical portion of the T-bar (121) being nested with the front stem (10); the left front fork (123) and the right front fork (122) are respectively arranged on a left shoulder (128) and a right shoulder (127) at two ends of the T rod (121), and the left front fork (123) and the right front fork (122) can respectively rotate in sleeves of the left shoulder (128) and the right shoulder (127); the lower end of the left front fork (123) is connected to the axle of the left front wheel (32), the lower end of the right front fork (122) is connected to the axle of the right front wheel (31), and the toe-in (113) connects the two right front forks (122) and the left front fork (123).

4. The inverted tricycle according to claim 3, wherein both ends of the toe-in (113) are provided with fisheye bearings (126), and both fisheye bearings (126) are connected with the right front fork (122) and the left front fork (123) through bolts.

5. The inverted tricycle according to claim 3, characterised in that the left shoulder (128) and the right shoulder (127) are each provided with a horizontal sleeve and a vertical sleeve, the two horizontal sleeves being respectively fitted on the two ends of the T-bar (121), the sleeves being able to rotate about the horizontal axis of the T-bar (121), the two vertical sleeves being respectively fitted on the left front fork (123) and the right front fork (122), the horizontal sleeve and the vertical sleeve clamp angle being slightly greater than 90 degrees in order to slightly form the two front wheels (3) into a splayed shape, facilitating the stability and straight-line driving of the vehicle.

6. The tricycle according to claim 1, characterized in that the front body (1) further comprises a front vertical pipe (10), the rear body (2) comprises a rear vertical pipe (21) with a hole groove processed at the upper end, the front vertical pipe (10) is arranged at the upper end of the rear vertical pipe (21) and can adjust the front and rear angles through an upper pin shaft and a lower pin shaft, and the front vertical pipe (10) is welded with a hole plate; the pore plate of the front vertical pipe (10) is connected with the pore groove of the rear vertical pipe (21) by an upper pin shaft and a lower pin shaft.

7. The tricycle according to claim 1, characterised in that the front body (1) is provided with a braking control device (17), the front wheels (3) are provided with front braking actuators (15), and the rear wheels (4) are provided with rear braking actuators (25); the front brake executing device (15) and the rear brake executing device (25) are both connected with the brake control device (17).

8. The tricycle of claim 7, wherein the brake control device (17) comprises a front brake grip (171), a rear brake grip (172), a front brake cable and a rear brake cable; two ends of the front brake pull wire are respectively connected with the front brake grip (171) and the front brake executing device (15); two ends of the rear brake pull wire are respectively connected with the rear brake handle (172) and the rear brake executing device (25); the front brake grip (171) and the rear brake grip (172) are respectively disposed on the left and right handlebars (111 and 112).

9. The tricycle according to claim 1, characterized in that the front left wheel (32) and the front right wheel (31) are driven wheels or electric wheels, the rear wheel (4) is a driving wheel, a power device (23) and a transmission device (24) are arranged on the rear body (2), and two ends of the transmission device (24) are respectively connected with the power device (23) and the rear wheel (4).

10. The inverted tricycle of claim 9, wherein the power device (23) is either a human drive or an electric drive.

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