CN217227284U

CN217227284U - Portable mini-vehicle

Info

Publication number: CN217227284U
Application number: CN201990000927.1U
Authority: CN
Inventors: 覃金辉
Original assignee: Shenzhen Keerma Technology Co ltd
Current assignee: Shenzhen Keerma Technology Co ltd
Priority date: 2018-08-10
Filing date: 2019-08-07
Publication date: 2022-08-19
Anticipated expiration: 2029-08-07
Also published as: CN109436165A; WO2020030005A1

Abstract

The utility model provides a portable mini-vehicle, which aims to solve the problems of large occupied space, large vehicle body and the like of the existing car steering system, and comprises a vehicle frame (1), wheels (2), a steering device (3), a steering gear (4), a power device (5), a braking device (6) and a carrying cabin (7), wherein the wheels (2) are arranged below the front part of the vehicle frame (1) and below the rear part of the vehicle frame (1), the power device (5) is arranged at the bottom of the vehicle frame (1) or at the wheels (2), the power device (5) is connected with the wheels (2), the power device (5) drives the wheels (2), the braking device (6) is arranged on the wheels (2), the carrying cabin (7) is arranged to reach the innermost space front end of the vehicle frame (1), the space higher than the wheels (2) at the front part of the vehicle frame (1) is provided with the steering device (3) and the steering gear (4), the steering device (3) is connected with and controls a steering gear (4), and the steering gear (4) controls the steering of the wheels (2).

Description

Portable mini-vehicle

Technical Field

The invention relates to the technical field of miniature vehicles, in particular to a miniature vehicle with an ultra-short vehicle head, thereby providing various power-driven light miniature vehicles.

Background

With the development of economic society, the problem of traffic congestion increasingly becomes a common problem in many cities, the increase of the number of automobiles is a main cause of traffic congestion, and public transportation cannot completely meet the individual requirements of users. According to investigation, the cars running on the roads are usually one car and one person, seats except drivers are all in an empty state, a trunk is generally in an empty state, the proportion of one car and one person even reaches 70-80%, and a person with the weight not more than 100kg always needs a transportation tool of about 1000kg to carry out protection.

The existing small-sized automobile has the length, width and height of about 4200mmX1750mmX1500mm, the vehicle weight of about 1000-.

Summary of The Invention

Technical problem

Aiming at the problems, the invention provides a light mini-vehicle, aiming at ensuring that the weight of the vehicle does not exceed the carrying capacity of the vehicle, and solving the problems of large occupied space, large vehicle body, high energy consumption, large garage area, high vacancy rate and the like of the conventional car steering system.

Solution to the problem

Technical solution

The technical scheme adopted by the invention for solving the technical problems is as follows:

the utility model provides a light miniature vehicle, includes frame, wheel, turns to device, steering gear, power device, arresting gear, takes advantage of and carries the cabin, frame front portion below with frame rear portion below installation the wheel, power device installs frame bottom or install the wheel, power device connects the wheel, power device drives the wheel, the wheel is installed arresting gear, its characterized in that, take advantage of and carry the cabin setting to reach the foremost end in frame inner space, the frame front portion is higher than the space installation of wheel turn to device with the steering gear, turn to the device connection and control the steering gear, steering gear control the steering of wheel.

Further, the steering power of the steering gear is transmitted to the wheels from the left and right sides of the carrying compartment.

Furthermore, the portable mini vehicle further comprises a steering vertical shaft, the steering vertical shaft is rotatably arranged on the left side and the right side of the carrying cabin, the steering gear is connected with the steering vertical shaft, the steering vertical shaft is connected with the wheels, the rotation of the steering vertical shaft is controlled according to the movement of the steering gear, and the rotation of the steering vertical shaft controls the steering of the wheels.

Furthermore, the steering gear is a rack and pinion steering gear, a bevel gear steering gear, a right-angle bevel gear steering gear or a connecting rod steering gear, the steering gear is connected with the steering vertical shaft through an upper transverse pull rod and a vertical shaft upper rod, a steering transverse shaft is connected with a gear rack set, the steering transverse shaft is connected with a bevel gear set or the steering transverse shaft is connected with a right-angle bevel gear set, and the steering vertical shaft is fixedly connected with the wheels or connected with a lower transverse pull rod through a vertical shaft lower rod.

Furthermore, the portable mini vehicle further comprises an upper transverse pull rod, a lower transverse pull rod, an upper vertical shaft rod and a lower vertical shaft rod, the steering gear is a rack and pinion steering gear, the rack and pinion steering gear is movably connected with the upper vertical shaft rod on two sides of the steering gear through the upper transverse pull rod, the upper vertical shaft rod is fixedly connected with the vertical steering shaft, the vertical steering shaft is fixedly connected with the lower vertical shaft rod, and the lower vertical shaft rod is movably connected with the wheels through the lower transverse pull rod.

Furthermore, the steering gear is an electronic steering gear, a wheel steering motor is arranged beside the wheels or the wheels, the electronic steering gear is connected with and controls the wheel steering motor, the wheel steering motor is connected with the wheels, and the wheel steering motor controls the steering of the wheels; or the steering gear is a hydraulic steering gear, the wheels or hydraulic cylinders are arranged beside the wheels, the hydraulic steering gear is connected with and controls the hydraulic cylinders, the hydraulic cylinders are connected with the wheels, and the hydraulic cylinders control the steering of the wheels.

Further, the steering device is a steering wheel, a steering handle, a steering motor or an automatic driver.

The steering wheel is connected with and controls the steering gear, an accelerator pedal and a brake pedal are mounted at the front bottom of the frame, the accelerator pedal is connected with and controls the power device, and the brake pedal is connected with and controls the brake device; or the steering handle is connected with the steering gear; or the automatic driver is connected with and controls the steering gear motor, the steering gear motor is connected with and controls the steering gear, and the automatic driver is connected with and controls the power device and the braking device.

Furthermore, the power device is a motor, and further comprises a battery, a charging device and a controller, wherein the battery is arranged at the bottom of the frame, the charging device and the controller are arranged at the rear part of the frame, the charging device is connected with the battery, the battery is connected with the controller, and the controller is connected with and controls the motor; or the power plant is a fuel engine and further comprises a fuel tank, the fuel engine is arranged at the rear bottom of the frame, the fuel tank is arranged at the bottom of the frame and is connected with the fuel engine, and the fuel tank provides fuel for the fuel engine; or the power device is a pneumatic motor and further comprises a compression cylinder, the compression cylinder is installed at the bottom of the frame and connected with the pneumatic motor, and the compression cylinder provides compressed gas for the pneumatic motor; or the power device is a manpower driving device which is arranged at the front bottom of the frame.

Furthermore, the portable mini vehicle further comprises a double-wishbone suspension, a rocker arm suspension and a shock absorber, wherein the wheel is arranged below the front part of the vehicle frame and is connected with the vehicle frame through the double-wishbone suspension, the shock absorber is arranged between the double-wishbone suspension and the vehicle frame, the wheel is arranged below the rear part of the vehicle frame and is connected with the vehicle frame through the rocker arm suspension, and the shock absorber is arranged between the rocker arm suspension and the vehicle frame.

Furthermore, the portable mini-vehicle also comprises a battery, a charging device, a controller, an instrument control panel, a double-fork-arm suspension, a rocker arm suspension, a shock absorber, an accelerator pedal, a brake pedal, a vehicle door, a vehicle shell, a front seat and a rear seat, wherein the power device is a motor, the battery is installed at the bottom of the vehicle frame, the charging device and the controller are installed at the rear part of the vehicle frame, the charging device is connected with the battery, the battery is connected with the controller, the controller is connected with the motor, the accelerator pedal and the brake pedal are installed at the front bottom of the vehicle frame, the accelerator pedal controls the motor, the brake pedal controls the braking device, the instrument control panel is installed in a space higher than the front part of the vehicle frame, the vehicle wheel is installed below the front part of the vehicle frame and is connected with the vehicle frame through the double-fork-arm suspension, the shock absorber is arranged between the double-wishbone suspension and the frame, the wheels are arranged below the rear portion of the frame and connected with the frame through the rocker arm suspension, the shock absorber is arranged between the rocker arm suspension and the frame, the frame is of a hollow tube frame structure, a plate-girder frame structure or an integrally formed structure, the shell is arranged on the frame, the vehicle door is arranged on the side face or the top of the frame, the front seat and the rear seat are arranged in the frame in a front-back mode, and the front seat and the rear seat are 0-1 combination of the front seat and 0-1 combination of the rear seat or 0-2 combination of the front seat and 0-2 combination of the rear seat.

Advantageous effects of the invention

Advantageous effects

According to the portable mini vehicle provided by the invention, the steering gear is arranged in the space which is higher than the wheels in the front part of the frame, the carrying cabin is arranged to reach the foremost end in the space in the frame, the steering power is transmitted to the steering wheels from the left side and the right side of the frame, the integral structure of the vehicle is improved, parts of the vehicle are designed in a miniaturized manner, the power device is arranged at the bottom of the frame or at the positions of the wheels, the power-assisted steering and a normally less-used trunk are omitted, the high-strength frame is designed, and the design and the research and development of the innovative light weight form about 200kg of 2 mini vehicles and about 300kg of 4 mini vehicles, so that the two mini vehicles have the similar size and energy consumption of motorcycles, but have the similar safety and comfort of cars. Thus, the following advantages are achieved:

1. the length, width and height of 2 portable mini-vehicles are about 2200X850X1380mm, the length, width and height of 4 portable mini-vehicles are about 2200X1320X1380mm, and the common garage can park 4 portable mini-vehicles with 2 seats or 2 portable mini-vehicles with 4 seats; the 2 portable miniature vehicles occupy the road area equivalent to the size of a motorcycle, can run more vehicles on the road, and greatly improve the trafficability characteristic.

2. The weight of the mini-car is greatly reduced: the weight of 2 portable mini-vehicles is about 200kg, the average weight of people is about 100 and 200 kg/person (determined by the number of people), the energy consumption per hundred kilometers is about 4kwh, and the energy consumption is equivalent to that of a motorcycle; the weight of 4 portable mini-vehicles is about 300kg, the average weight of people is about 75-300 kg/person (according to the number of people), the energy consumption per hundred kilometers is about 7kwh, and a large amount of energy is saved; the great reduction of the vehicle weight greatly reduces the collision energy and improves the safety factor.

3. The battery of the electric portable micro vehicle is small, the electric portable micro vehicle can be charged quickly at 220V everywhere, the electric portable micro vehicle is fully charged within 1-3 hours, the capacity of the battery of 2 portable micro vehicles is about 1/6 of a common electric car, a large number of batteries are saved, the cruising mileage of about 300km can be brought, and the problems of difficult finding of charging piles, slow charging, large electric energy consumption and the like are solved at one stroke.

4. The price of the electric vehicle is greatly reduced, 2 portable mini vehicles are about 4 ten thousand RMB, 4 portable mini vehicles are about 7 ten thousand RMB, the whole vehicle is light in weight, power-assisted steering is not needed, and a braking system is more portable.

5. The gravity center of the whole car is lower, the safety coefficient is equivalent to that of a car, and the highest speed can reach about 150 km/h.

Brief description of the drawings

Drawings

FIG. 1 is a side view of a portable miniature vehicle according to the present invention;

FIG. 2 is a view of a part of the portable micro-vehicle of the present invention;

FIG. 3 is a view of a part of the portable micro-vehicle of the present invention;

FIG. 4 is a frame view of the portable micro-vehicle according to the present invention;

FIG. 5 is a view of a rack and pinion steering system of the portable micro-vehicle according to the present invention;

FIG. 6 is a diagram of a rack and pinion steering system of the portable micro-vehicle according to the present invention;

FIG. 7 is a view of the bevel gear steering system of the portable micro-vehicle according to the present invention;

FIG. 8 is a view of the right angle helical steering system of the portable micro vehicle according to the present invention;

FIG. 9 is a diagram of a link steering system for a portable micro-vehicle according to the present invention;

FIG. 10 is a diagram of an electronic steering system for a portable micro-vehicle according to the present invention;

FIG. 11 is a diagram of an electronic steering system for a portable micro-vehicle according to the present invention;

FIG. 12 is a view of the hydraulic steering system of the portable micro-vehicle according to the present invention;

FIG. 13 is a hydraulic steering system of the portable micro-vehicle according to the present invention;

FIG. 14 is a diagram of an automatic driving system for a portable micro-vehicle according to the present invention;

FIG. 15 is a diagram of a fuel engine component of a portable micro vehicle according to the present invention;

FIG. 16 is a view showing the riding of the 3-wheeled human-powered portable micro-vehicle according to the present invention;

FIG. 17 is a structural view of a 3-wheel manpower-driven portable micro-vehicle according to the present invention;

FIG. 18 is a top view of the suspension and shock absorber of the portable micro-vehicle according to the present invention;

FIG. 19 is the suspension and shock absorbing structure of the portable micro-vehicle according to the present invention;

FIG. 20 is a side shell door view of the portable micro-vehicle of the present invention;

FIG. 21 is a front side seating comparison view of a 2-piece mini vehicle and car of the present invention;

FIG. 22 is a side-view of a vehicle of the present invention for a miniature 2 vehicle and a car;

FIG. 23 is a basic structural view of a 4-seater portable mini-vehicle according to the present invention;

FIG. 24 is a basic structural view of a 4-seater portable mini-vehicle according to the present invention;

FIG. 25 is a front side view of the 4-seater portable mini vehicle and car of the present invention;

wherein, 1-vehicle frame, 2-wheel, 3-steering device, 4-steering gear, 5-power device, 6-braking device, 7-loading cabin, 8-accelerator pedal, 9-brake pedal, 10-instrument control panel, 11-rocker arm suspension, 12-double-fork arm suspension, 13-shock absorber, 14-vehicle shell, 15-vehicle door, 16-front seat, 17-rear seat,

31-steering wheel, 32-steering handle, 33-steering motor, 34-autopilot,

41-a rack and pinion steering gear, 42-a bevel gear steering gear, 43-a right angle helical gear steering gear, 44-a connecting rod steering gear, 45-an electronic steering gear, 46-a hydraulic steering gear,

51-motor, 52-battery, 53-charging device, 54-controller, 55-fuel engine, 56-fuel tank, 57-manual drive, 58-driving chain,

60-steering vertical shaft, 61-vertical shaft upper rod, 62-vertical shaft lower rod, 63-upper cross pull rod, 64-lower cross pull rod, 65-hinge column, 66-joint bearing,

70-steering cross shaft, 71-gear rack group, 72-bevel gear group, 73-right-angle bevel gear group, 75-wheel steering motor, 76-hydraulic cylinder and 77-hydraulic pipe.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Examples of the invention

Modes for carrying out the invention

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and do not limit the invention.

Example 1

As shown in fig. 1-4, 15 and 16, the embodiment of the present invention provides a portable mini-vehicle, comprising a frame 1, wheels 2, a steering device 3, a steering gear 4, a power device 5, a braking device 6 and a carrying cabin 7, wherein the wheels 2 are installed below the front part of the frame 1 and below the rear part of the frame 1, the power device 5 is installed at the bottom of the frame 1 or installed at the wheels 2, for example, installed at the wheels in the form of a hub motor, the power device 5 is connected with the wheels 2, the power device 5 drives the wheels 2, the wheels 2 are installed with the braking device 6, the carrying cabin 7 is arranged to reach the most front end of the inner space of the frame 1 (fig. 1, 15 and 16), the steering device 3 and the steering gear 4 are installed at the front part of the frame 1 higher than the wheels 2 (fig. 1 and 15), the steering device 3 is connected with and controls the steering gear 4, the steering gear 4 controls the steering of the wheels 2, the space below the front part of the frame 1 is the space for placing legs and feet of a driver, and the steering gear of a common car is arranged near a front wheel shaft and is not higher than the wheels.

The vehicle frame 1 may be of any suitable type, such as a hollow tube frame structure (fig. 4), a load-bearing vehicle body structure, or an integrally formed structure (e.g. a 3D printed integrally formed structure), and the vehicle frame 1 may also be referred to as a vehicle body and is a main body structure of a vehicle.

The steering device 3 may be of any suitable type, such as: a steering wheel 11, a steering handle 12, a steering motor 13, etc.

The diverter 4 may be of any suitable type, such as: a rack and pinion steering gear 41, a bevel gear steering gear 42, a right angle helical gear steering gear 43, a link steering gear 44, a worm steering gear, an electronic steering gear 45, a hydraulic steering gear 46, or the like.

The power means 5 may be of any suitable type, such as: an electric motor 51, a fuel engine 55, a pneumatic motor, a human powered drive 57, etc. The braking device 6 may be of any suitable type, such as: disc brakes, drum brakes, electromagnetic brakes, and the like.

The charging device 53 may be of any suitable type, such as a charger, a charging cable, a range extender, a fuel cell, etc.

The load compartment 7 is a compartment for carrying a load on the vehicle.

As shown in fig. 1 to 4, the steering power of the steering gear 4 is transmitted to the wheels 2 from the left and right sides of the carrying compartment 7, and does not occupy the space in the middle of the vehicle head.

As shown in fig. 1 to 9 and 17, the portable mini-vehicle further comprises a steering vertical shaft 60, wherein the steering vertical shaft 60 is rotatably installed at the left and right sides of the carrying compartment 7, the steering gear 4 is connected with the steering vertical shaft 60, the steering vertical shaft 60 is connected with the wheels 2, the rotation of the steering vertical shaft 60 is controlled according to the movement of the steering gear 4, and the rotation of the steering vertical shaft 60 controls the steering of the wheels 2. The steering shaft of the common vehicle is only provided with one steering shaft, and the steering shaft transmits steering force to a steering gear near a front wheel shaft from the middle of a steering wheel and distributes the steering force to wheels through the steering gear.

As shown in fig. 5-9 and 17, wherein the steering gear 4 is a rack and pinion steering gear 41 (fig. 5 and 6), a bevel gear steering gear 42 (fig. 7), a right angle helical gear steering gear 43 (fig. 8) or a link steering gear 44 (fig. 9 and 17), the steering gear 4 is connected with the steering vertical shaft 60 through an upper cross tie rod 63 (an articulated column 65 or an articulated bearing 66 is movably connected) and a vertical shaft upper rod 61 (fig. 5, 9 and 17), a steering horizontal shaft 70 is connected with a gear rack group 71 (fig. 6), the steering horizontal shaft 70 is connected with a bevel gear group 72 (fig. 7) or the steering horizontal shaft 70 is connected with a right angle helical gear group 73 (fig. 8), the steering vertical shaft 60 is fixedly connected with the wheel 2 (fig. 9 and 17) or is connected through a vertical shaft lower rod 62 and a lower cross tie rod 64 (an articulated bearing 66 is movably connected) (fig. 5-8), thereby realizing the connection of the steering vertical shaft and the wheel, the connection principle and the working principle of the 5 steering gears of the portable mini-car are listed as follows:

1. as shown in fig. 5, the rack and pinion steering gear 41 is connected to principle 1: 2 hinged columns 65 are installed on a rack of the gear rack steering gear 41, the hinged columns 65 are respectively hinged with the upper transverse pull rod 63 on the left side and the right side, the upper transverse pull rod 63 is hinged with the upper vertical shaft rod 61 on the left side and the right side through the hinged columns 65, the upper vertical shaft rod 61 is fixedly connected with the upper part of the vertical steering shaft 60, the lower part of the vertical steering shaft 60 is fixedly connected with the lower vertical shaft rod 62 on the left side and the right side, the lower vertical shaft rod 62 is movably connected with the lower transverse pull rod 64 on the left side and the right side through knuckle bearings 66, and the lower transverse pull rod 64 is movably connected with the wheels 2 on the left side and the right side through the knuckle bearings 66. As shown in fig. 5, the rack-and-pinion steering gear 41 works according to the principle 1: the rack of the rack and pinion steering gear 41 is driven to move left and right by the gear rotation of the rack and pinion steering gear 41, the upper cross pull rod 63 is driven to move by the rack of the rack and pinion steering gear 41, the upper cross pull rod 63 drives the vertical shaft upper rod 61, the steering vertical shaft 60 and the vertical shaft lower rod 62 to rotate together by the movement of the upper cross pull rod 63, the lower cross pull rod 64 is driven to move by the rotation of the vertical shaft lower rod 62, and the wheel 2 is driven to steer by the movement of the lower cross pull rod 64.

2. As shown in fig. 6, the rack and pinion steering gear 41 is connected to principle 2: the rack of the rack and pinion steering gear 41 is fixedly connected with the steering transverse shaft 70, two ends of the steering transverse shaft 70 are fixedly connected with racks of the rack and pinion groups 71 at two sides, gears of the rack and pinion groups 71 are fixedly connected at the left side and the right side of the upper part of the steering vertical shaft 60, the lower part of the steering vertical shaft 60 is fixedly connected with the left side and the right side of the vertical shaft lower rod 62, the vertical shaft lower rod 62 is movably connected with the left side and the right side of the lower cross tie rod 64 through the knuckle bearing 66, and the lower cross tie rod 64 is movably connected with the wheel 2 through the knuckle bearing 66. As shown in fig. 6, the rack and pinion steering gear 41 works on the principle 2: the rack of the rack and pinion steering gear 41, the steering cross shaft 70 and the rack of the rack and pinion set 71 are driven by the gear of the rack and pinion steering gear 41 to move left and right, the rack of the rack and pinion set 71 drives the gears of the rack and pinion set 71, the steering vertical shaft 60 and the vertical shaft lower rod 62 to rotate together, the vertical shaft lower rod 62 rotates to drive the lower tie rod 64 to move, and the lower tie rod 64 moves to drive the wheel 2 to steer.

3. As shown in fig. 7, the bevel gear diverter 42 connection principle: the bevel gear of the bevel gear steering gear 42 is fixedly connected with the steering cross shaft 70, the steering cross shaft 70 is fixedly connected with one bevel gear of the bevel gear sets 72 on the left and right sides, the other bevel gear of the bevel gear sets 72 is fixedly connected with the steering vertical shaft 60, the lower part of the steering vertical shaft 60 is fixedly connected with the vertical shaft lower rods 62 on the left and right sides, the vertical shaft lower rods 62 are movably connected with the lower tie rods 64 on the left and right sides through the knuckle bearings 66, and the lower tie rods 64 are movably connected with the wheels 2 through the knuckle bearings 66. As shown in fig. 7, the bevel gear diverter 42 works on the principle: the bevel gear redirector 42 rotates to drive the steering cross shaft 70 and the bevel gear set 72 to rotate together, the bevel gear set 72 rotates to drive the steering vertical shaft 60 and the vertical shaft lower rod 62 to rotate together, the vertical shaft lower rod 62 rotates to drive the lower cross tie rod 64 to move, and the lower cross tie rod 64 moves to drive the wheels 2 to steer.

4. As shown in fig. 8, the connection principle of the right-angle helical gear steering gear 43 is as follows: the right angle helical gear of the right angle helical gear steering gear 43 is fixedly connected with the steering cross shaft 70, the steering cross shaft 70 is fixedly connected with one right angle helical gear of the right angle helical gear set 73 at the left and right sides, the other right angle helical gear of the right angle helical gear set 73 is fixedly connected with the steering vertical shaft 60, the lower part of the steering vertical shaft 60 is fixedly connected with the vertical shaft lower rod 62 at the left and right sides, the vertical shaft lower rod 62 is movably connected with the lower cross tie rod 64 at the left and right sides by the knuckle bearing 66, and the lower cross tie rod 64 is movably connected with the wheel 2 by the knuckle bearing 66. As shown in fig. 8, the right angle helical gear steering gear 43 works according to the following principle: the rotation of the right-angle helical gear steering gear 43 drives the steering cross shaft 70 and the right-angle helical gear set 73 to rotate together, the right-angle helical gear set 73 rotates to drive the steering vertical shaft 60 and the vertical shaft lower rod 62 to rotate together, the vertical shaft lower rod 62 rotates to drive the lower tie rod 64 to move, and the lower tie rod 64 moves to drive the wheel 2 to steer.

5. As shown in fig. 9, 16 and 17, the link steering gear 44 is connected according to the following principle: the link rod steering gear 44 is provided with 2 knuckle bearings 66, the 2 knuckle bearings 66 are movably connected with the upper transverse pull rod 63 at the left and right sides, the upper transverse pull rod 63 is movably connected with the vertical shaft upper rod 61 through the knuckle bearings 66, the vertical shaft upper rod 61 is fixedly connected with the upper part of the steering vertical shaft 60, and the lower part of the steering vertical shaft 60 is fixedly connected with the wheel 2. As shown in fig. 9, the link steering gear 44 works on the principle that: the connecting rod steering gear 44 rotates to drive the upper transverse pull rod 63 to move, and the upper transverse pull rod 63 moves to drive the vertical shaft upper rod 61, the steering vertical shaft 60 and the wheels 2 to rotate together, so that the steering of the wheels is realized.

As shown in fig. 1-5, the portable micro-vehicle further includes the upper tie rod 63, the lower tie rod 64, the steering vertical shaft upper rod 61, and the vertical shaft lower rod 62, the steering gear is preferably a rack and pinion steering gear 41, the rack and pinion steering gear 41 is movably connected (connected by a hinge post 66) to the vertical shaft upper rod 61 at two sides of the steering gear through the upper tie rod 63, the vertical shaft upper rod 61 is fixedly connected to the steering vertical shaft 60, the steering vertical shaft 60 is fixedly connected to the vertical shaft lower rod 62, and the vertical shaft lower rod 62 is movably connected (connected by a knuckle bearing 66) to the wheel 2 through the lower tie rod 64. As shown in fig. 5, the rack and pinion steering gear 41 is connected to principle 1: the rack of the rack and pinion steering gear 41 is provided with 2 hinge columns 65, the hinge columns 65 are respectively hinged with the upper transverse pull rod 63 on the left side and the right side, the upper transverse pull rod 63 is hinged with the vertical shaft upper rods 61 on the left side and the right side through the hinge columns 65, the vertical shaft upper rods 61 are fixedly connected with the upper part of the steering vertical shaft 60, the lower part of the steering vertical shaft 60 is fixedly connected with the vertical shaft lower rods 62 on the left side and the right side, the vertical shaft lower rods 62 are movably connected with the lower transverse pull rods 64 on the left side and the right side through knuckle bearings 66, and the lower transverse pull rods 64 are movably connected with the wheels 2 on the left side and the right side through the knuckle bearings 66. As shown in fig. 5, the rack and pinion steering gear 41 works on the principle 1: the rack of the rack and pinion steering gear 41 is driven to move left and right by the rotation of the gear of the rack and pinion steering gear 41, the rack of the rack and pinion steering gear 41 is driven to move left and right by the left and right movement of the rack and pinion steering gear 41, the upper cross pull rod 63 is driven to move and drive the vertical shaft upper rod 61, the steering vertical shaft 60 and the vertical shaft lower rod 62 to rotate together, the vertical shaft lower rod 62 is driven to rotate and drive the lower cross pull rod 64 to move, and the lower cross pull rod 64 is driven to move and drive the wheel 2 to steer.

As shown in fig. 10-11, the steering gear is an electronic steering gear 45, the electronic steering gear processes and transmits steering information, such as steering angle information, steering force information, etc., in the form of electrical signals, electronic signals or electromagnetic signals, a wheel steering motor 75 is installed beside the wheel 2 or the wheel 2, the electronic steering gear 45 is connected (electrically or wirelessly connected) to the wheel steering motor 75, the wheel steering motor 75 is connected to the wheel 2, the wheel steering motor 75 controls the steering of the wheel 2, the wheel steering motor 75 is axially installed with the vertical shaft lower rod 62, and the vertical shaft lower rod 62 is movably connected (connected by a knuckle bearing 66) to the wheel 2 through the lower tie rod 64. The working principle is as follows: the electronic steering gear 45 is connected with and controls the rotation of the wheel steering motor 75, the rotation of the wheel steering motor 75 controls the rotation of the vertical shaft lower rod 62, the rotation of the vertical shaft lower rod 62 drives the lower tie rod 64 to move, and the movement of the lower tie rod 64 drives the steering of the wheels 2, so that the electronic steering gear 45 controls the steering of the wheels 2;

alternatively, as shown in fig. 12 and 13, wherein the steering gear 4 is a hydraulic steering gear 46, the hydraulic steering gear 46 is well known and handles and distributes steering force in a hydraulic mode, a hydraulic cylinder 76 (converts hydraulic force into mechanical steering force) is installed beside the wheel 2 or the wheel 2, the hydraulic steering gear 46 is connected and controls the hydraulic cylinder 76 by using a hydraulic pipe 77, one end of the hydraulic cylinder 76 is movably connected (connected by a knuckle bearing 66) with the frame 1, the other end of the hydraulic cylinder 76 is movably connected (connected by a knuckle bearing 66) with the wheel 2 by the lower tie rod 64, and the hydraulic cylinder 76 controls the steering of the wheel 2, and the working principle is as follows: movement of the hydraulic steering gear 46 controls movement of the hydraulic cylinder 76 through hydraulic line 77, movement of the hydraulic cylinder 76 controls movement of the lower tie rod 64, and movement of the lower tie rod 64 controls steering of the wheels 2.

As shown in fig. 1-8 and 10-13, the steering device 3 is a steering wheel 31, and the steering wheel 31 is connected with and controls the steering gear 4; the steering wheel 31 is connected with and controls the steering gear 4, an accelerator pedal 8 and a brake pedal 9 are arranged at the front bottom of the frame 1, the accelerator pedal 8 is connected with and controls the power device 5, and the brake pedal 9 is connected with and controls the brake device 6.

As shown in fig. 9, 16 and 17, the steering device 3 is a steering handle 32, and the steering handle 32 is connected with the steering gear 4, such as: the steering gear 4 is a connecting rod steering gear 44, the connecting rod steering gear 44 is provided with 2 knuckle bearings 66, the 2 knuckle bearings 66 are movably connected with the upper transverse pull rod 63 at the left side and the right side, the upper transverse pull rod 63 is movably connected (the knuckle bearings 66 are movably connected) with the vertical shaft upper rod 61, the vertical shaft upper rod 61 is fixed at the upper part of the steering vertical shaft 60, and the lower part of the steering vertical shaft 60 is fixedly connected with a wheel 2. The working principle is as follows: when the steering handle 32 rotates to drive the connecting rod steering gear 44 to rotate, the connecting rod steering gear 44 rotates to drive the upper cross pull rod 63 to move left and right, and the upper cross pull rod 63 moves left and right to drive the vertical shaft upper rod 61, the steering vertical shaft 60 and the wheel 2 to rotate, so as to control the steering of the wheel 2;

or, as shown in fig. 1, 10, 11, and 14, wherein the steering device 3 is a steering gear motor 33, the front portion of the frame 1 is higher than the space of the wheels 2, the steering gear motor 33 is connected and controlled by the steering gear motor 33, the steering gear motor 33 is connected and controlled by the steering gear 4, the steering gear 34 is connected and controlled by the power device 5 and the braking device 6, the frame 1 is provided with a sensor, the installation position of the sensor is determined as required, the sensor is connected with the steering gear, and the sensor provides data for the steering gear 34, so as to realize the control of the steering, speed, and braking of the minicar by the steering gear, and further provide the minicar with an automatic driving function.

As shown in fig. 1-8 and 10-14, wherein said portable mini-vehicle further comprises a battery 52, a charging device 53, and a controller 54, said power device 5 is a motor 51, said motor 51 is mounted at the rear bottom of said frame 1 or mounted at said wheel 2 in the form of a hub motor, said battery 52 is mounted at the bottom of said frame 1, said charging device 53 and said controller 54 are mounted at the rear of said frame 1, said charging device 53 is connected to said battery 52, said battery 52 is connected to said controller 54, said controller 54 is connected to and controls said motor 51;

alternatively, as shown in fig. 15, the power plant 5 is a fuel engine 55, and further includes a fuel tank 56, the fuel engine 55 is mounted at the rear bottom of the frame 1, the fuel tank 56 is mounted at the bottom of the frame 1, the fuel tank 56 is connected to the fuel engine 55, and the fuel tank 56 supplies fuel to the fuel engine 55;

or, the power device 5 is a pneumatic motor, the portable mini vehicle further comprises a compression cylinder, the compression cylinder stores high-pressure gas, the pneumatic motor is installed at the rear bottom of the frame 1 or at the wheel 2, the compression cylinder is installed at the bottom of the frame and connected with the pneumatic motor, and the compression cylinder provides compressed gas for the pneumatic motor;

alternatively, as shown in fig. 9, 16 and 17, the power device 5 is a manual driving device 57, the manual driving device 57 is installed at the front bottom of the frame 1, the wheel installed below the rear part of the frame is a wheel 2, and the manual driving device 57 is connected with and drives one of the wheels 2 installed below the rear part of the frame or connected with and drives the wheel 2 installed below the front part of the frame through a transmission chain 58, a rope or a transmission shaft.

As shown in fig. 18 and 19, further comprising a rocker arm suspension 11, a dual-wishbone suspension 12 and a shock absorber 13, wherein the wheel 2 is mounted below the rear portion of the vehicle frame 1 and connected with the vehicle frame 1 through the rocker arm suspension 11 (connected with an articulation column 65), the shock absorber 13 is mounted between the rocker arm suspension 11 and the vehicle frame 1 (connected with the articulation column 65), the wheel 2 is mounted below the front portion of the vehicle frame 1 and connected with the vehicle frame 1 through the dual-wishbone suspension 12 (connected with the articulation column 65), and the shock absorber 13 is mounted between the dual-wishbone suspension 12 and the vehicle frame 1 (connected with the articulation column 65).

As shown in fig. 1-8, 10-14, 18-25, further comprising a battery 52, a charging device 53, a controller 54, an accelerator pedal 8, a brake pedal 9, an instrument control panel 10, a rocker arm suspension 11, a dual-fork arm suspension 12, a shock absorber 13, a vehicle shell 14, a vehicle door 15, a front seat 16, and a rear seat 17, wherein the vehicle frame 1 is a hollow tube frame structure (fig. 4), a plate-beam frame structure, or an integrally formed structure (e.g. 3D printing integrally formed structure), the power device 5 is a motor 51, the motor 51 is mounted at the rear bottom of the vehicle frame 1 or the wheel 2 is mounted in the form of a hub motor, the battery 52 is mounted at the bottom of the vehicle frame 1, the charging device 53 and the controller 54 are mounted at the rear of the vehicle frame 1, the charging device 53 is connected with the battery 52, the battery 52 is connected with the controller 54, the controller 54 is connected with the motor 51, the accelerator pedal 8 and the brake pedal 9 are arranged at the front bottom of the frame 1, the accelerator pedal 8 controls the motor 51, the brake pedal 9 controls the brake device 6, the instrument control panel 10 is arranged in a space higher than the front part of the frame 1, the wheel 2 is arranged below the rear part of the frame 1 and is connected with the frame 1 through the rocker arm suspension 11, the shock absorber 13 is arranged between the rocker arm suspension 11 and the frame 1, the wheel 2 is arranged below the front part of the frame 1 and is connected with the frame 1 through the double-wishbone suspension 12, the shock absorber 13 is arranged between the double-wishbone suspension 12 and the frame 1, the shell 14 is arranged on the frame 1 (figure 20), the vehicle door 15 (figures 4 and 20) is arranged at the side surface or the top part of the frame 1, the front seat 16 and the rear seat 17 are arranged in the front and back directions in the frame 1, the front seat 16 and the rear seat 17 are a combination of 0-1 front seat 16 and 0-1 rear seat 17, or a combination of 0-2 front seats 16 and 0-2 rear seats 17, so as to form a 2-seat mini-car, the width of which is half of the width of the existing common car (figure 21), the length of which is only half of the length of the existing three-box car (figure 22), so as to form a 4-seat mini-car, the length of which is about half of the length of the existing three-box car (22), no gear area is provided, and the width of which is narrower than that of the existing car (figure 25);

alternatively, as shown in fig. 1, 15, 22-25, the front seat 16 and the rear seat 17 are installed in the frame 1 in tandem, and the front seat 16 and the rear seat 17 are a combination of 2

front seats

16 and 2 rear seats 17 to form a 4-seat mini-car, which has a length about half of the length of the existing three-box car (22), no gear area, and a width narrower than the width of the existing car (fig. 25).

Industrial applicability

According to the portable mini-vehicle provided by the embodiment of the invention, the steering gear is arranged in the space higher than the wheels at the front part of the frame, the carrying cabin is arranged to reach the foremost end of the space in the frame, the steering power is transmitted to the steering wheels from the left side and the right side of the frame, the overall structure of the vehicle is improved, parts of the vehicle are designed in a miniaturized manner, the power device is arranged at the bottom of the frame or at the positions of the wheels, a power-assisted steering and a trunk which is usually less used are omitted, a high-strength frame is designed, and through pioneering light-weight design and research and development, about 200kg of 2 mini-vehicles and about 300kg of 4 mini-vehicles are formed, so that the two mini-vehicles have the similar size and energy consumption of motorcycles, but have the similar safety and comfort of car levels. Thus, the following advantages are provided:

firstly, the length, width and height of 2 portable mini-vehicles are about 2200X850X1380mm, the length, width and height of 4 portable mini-vehicles are about 2200X1320X1380mm, and the vehicle has a riding space which is almost the same as that of a car, and 4 portable mini-vehicles or 24 portable mini-vehicles can be parked in a common garage; the occupied road area of the 2 portable mini-vehicles is equivalent to the size of a motorcycle, more vehicles can be driven on the road, and the trafficability characteristic is greatly improved. Secondly, the weight of the micro-vehicle is greatly reduced: 2 portable mini-vehicles weigh about 200kg, the average vehicle weight is about 100-; the weight of 4 portable mini-vehicles is about 300kg, the average vehicle weight of people is about 75-300 kg/person (determined by the number of people), the energy consumption of hundreds of kilometers is about 7kwh, and a large amount of energy is saved; the great reduction of the vehicle weight greatly reduces the collision energy and improves the safety factor. Thirdly, the battery of the electric light mini vehicle is small, the battery can be charged quickly at 220V everywhere, the battery is fully charged in 1-3 hours, the capacity of the battery of 2 light mini vehicles is about 1/6 of a common electric car, a large number of batteries are saved, the endurance mileage of about 300km can be brought, and the problems of difficulty in finding a charging pile, slow charging, large electric energy consumption and the like are solved at one stroke. Fourthly, the number of vehicle parts is reduced, the vehicle parts are miniaturized, a large number of raw materials are saved, the maintenance is easy, the price of the electric vehicle is greatly reduced, the price of 2 portable micro vehicles is about 4 ten thousand yuan of RMB, the price of 4 portable micro vehicles is about 7 ten thousand yuan of RMB, the whole vehicle is light in weight, power-assisted steering is not needed, and a braking system is more portable. Fifthly, the gravity center of the whole vehicle is lower, the safety coefficient is equivalent to that of a car, and the highest speed can reach about 150 km/h.

In the patent of the invention, unless otherwise explicitly specified or limited, the terms "mounted", "connected", "fixed", and the like are to be understood in a broad sense, and for example, may be fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present patent application will be understood by those skilled in the art according to specific situations.

While the invention has been described herein in connection with specific embodiments thereof, it will be understood that it is capable of further modifications and this application is intended to cover any variations, uses, or adaptations of the invention following, in general, the principles of the invention and including such departures from the present disclosure as come within known or customary practice within the art to which the invention pertains and as may be applied to the essential features hereinbefore set forth, and as follows in the scope of the appended claims.

Claims

1. A portable mini vehicle comprises a frame (1), wheels (2), a steering device (3), a steering gear (4), a power device (5), a braking device (6) and a carrying cabin (7), wherein the wheels (2) are arranged below the front part of the frame (1) and below the rear part of the frame (1), the power device (5) is arranged at the bottom of the frame (1) or at the wheels (2), the power device (5) is connected with the wheels (2), the power device (5) drives the wheels (2), the braking device (6) is arranged at the wheels (2), the portable mini vehicle is characterized in that the carrying cabin (7) is arranged to reach the foremost end of the inner space of the frame (1), the steering device (3) and the steering gear (4) are arranged in the space of the front part of the frame (1) higher than the wheels (2), the steering device (3) is connected with and controls the steering gear (4), the steering gear (4) controls the steering of the wheels (2), and the steering power of the steering gear is transmitted to the wheels from the inner sides of the wheels at two sides of the carrying cabin.

2. The portable mini-vehicle according to claim 1, further comprising a steering vertical shaft (60), wherein the steering vertical shaft (60) is rotatably installed inside the wheels on the left and right sides of the passenger compartment (7), the steering gear (4) is connected to the steering vertical shaft (60), the steering vertical shaft (60) is connected to the wheels (2), the rotation of the steering vertical shaft (60) is controlled according to the movement of the steering gear (4), and the rotation of the steering vertical shaft (60) controls the steering of the wheels (2).

3. The portable mini-vehicle according to claim 2, wherein the steering gear (4) is a rack and pinion steering gear, a bevel gear steering gear, a right angle bevel gear steering gear or a link steering gear, the steering gear (4) is connected with the steering vertical shaft (60) through an upper cross tie rod (63) and a vertical shaft upper rod (61), a steering cross shaft (70) and a gear rack group (71), the steering cross shaft (70) and a bevel gear group (72) or the steering cross shaft (70) and a right angle bevel gear group (73), and the steering vertical shaft (60) is fixedly connected with the wheels (2) or is connected through a vertical shaft lower rod (62) and a lower cross tie rod (64).

4. The portable mini-vehicle according to claim 2, further comprising an upper tie rod (63), a lower tie rod (64), an upper vertical shaft rod (61), and a lower vertical shaft rod (62), wherein the steering gear (4) is a rack and pinion steering gear, the rack and pinion steering gear is movably connected with the upper vertical shaft rod (61) at two sides of the steering gear (4) through the upper tie rod (63), the upper vertical shaft rod (61) is fixedly connected with the vertical steering shaft (60), the vertical steering shaft (60) is fixedly connected with the lower vertical shaft rod (62), and the lower vertical shaft rod (62) is movably connected with the wheels (2) through the lower tie rod (64).

5. The portable mini-vehicle according to claim 1, wherein the steering gear (4) is an electronic steering gear, a wheel steering motor (75) is installed beside the wheel (2) or the wheel (2), the electronic steering gear is connected with and controls the wheel steering motor (75), the wheel steering motor (75) is connected with the wheel (2), and the wheel steering motor (75) controls the steering of the wheel (2);

or the steering gear (4) is a hydraulic steering gear, a hydraulic cylinder (76) is arranged beside the wheel (2) or the wheel (2), the hydraulic steering gear is connected with and controls the hydraulic cylinder (76), the hydraulic cylinder (76) is connected with the wheel (2), and the hydraulic cylinder (76) controls the steering of the wheel (2).

6. Portable mini-vehicle according to any one of claims 1 to 5, characterized in that said steering means (3) is a steering wheel (31), a steering handle (32), a steering motor (33) or an autopilot (34).

7. The portable mini-vehicle according to any one of claims 1 to 5, wherein the power device (5) is an electric motor (51), the portable mini-vehicle further comprises a battery (52), a charging device (53) and a controller (54), the battery (52) is mounted at the bottom of the vehicle frame (1), the charging device (53) and the controller (53) are mounted at the rear part of the vehicle frame (1), the charging device (53) is connected with the battery (52), the battery (52) is connected with the controller (54), and the controller (54) is connected with and controls the electric motor (51);

or the power device (5) is a fuel engine (55), the portable mini-vehicle further comprises a fuel tank (56), the fuel engine (55) is installed at the rear bottom of the frame (1), the fuel tank (56) is installed at the bottom of the frame (1), the fuel tank (56) is connected with the fuel engine (55), and the fuel tank (55) supplies fuel for the fuel engine (55);

or the power device (5) is a pneumatic motor, the portable mini vehicle further comprises a compression cylinder, the compression cylinder is installed at the bottom of the frame (1) and connected with the pneumatic motor, and the compression cylinder provides compressed gas for the pneumatic motor;

or the power device (5) is a manpower driving device (57), and the manpower driving device (57) is arranged at the front bottom of the frame (1).

8. The portable mini vehicle according to any one of claims 1 to 5, further comprising a double wishbone suspension (12), a rocker suspension (11), and a shock absorber (13), wherein the wheel (2) is mounted under the front portion of the frame (1) through the double wishbone suspension (12) and the frame (1) and the shock absorber (13) is mounted between the double wishbone suspension (12) and the frame (1), the wheel (2) is mounted under the rear portion of the frame (1) through the rocker suspension (11) and the frame (1) and the shock absorber (13) is mounted between the rocker suspension (11) and the frame (1).

9. The portable micro-vehicle according to claims 1 to 5, further comprising a battery, a charging device, a controller, an instrument control panel (10), a double-wishbone suspension (12), a rocker arm suspension (11), a shock absorber (13), an accelerator pedal (8), a brake pedal (9), a door (15), a housing (14), a front seat (16), and a rear seat (17), wherein the power device (5) is a motor, the battery is installed at the bottom of the frame (1), the charging device and the controller are installed at the rear of the frame (1), the charging device is connected to the battery, the battery is connected to the controller, the controller is connected to the motor, the accelerator pedal (8) and the brake pedal (9) are installed at the front bottom of the frame (1), and the accelerator pedal (8) controls the motor, the brake pedal (9) controls the brake device (6), the instrument control panel (10) is installed in a space, higher than the wheel (2), in the front of the frame (1), the wheel (2) is installed below the front of the frame (1) and connected with the frame (1) through the double-fork suspension (12), the shock absorber (13) is installed between the double-fork suspension (12) and the frame (1), the wheel (2) is installed below the rear of the frame (1) and connected with the frame (1) through the rocker suspension (11), the shock absorber (13) is installed between the rocker suspension (11) and the frame (1), the frame (1) is a hollow tube frame structure, a plate beam frame structure or an integrally formed structure, the shell (14) is installed on the frame (1), and the vehicle door (15) is installed on the side surface or the top of the frame (1), the front seat (16) and the rear seat (17) are arranged in the front-back direction in the frame (1), and the front seat (16) and the rear seat (17) are a combination of 0-1 front seat (16) and 0-1 rear seat (17), or a combination of 0-2 front seat (16) and 0-2 rear seat (17).