CN113524981A

CN113524981A - Variable-pitch minicar

Info

Publication number: CN113524981A
Application number: CN202010262433.XA
Authority: CN
Inventors: 胡静宇; 胡钧赫; 胡欣翔
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-03-29
Filing date: 2020-03-29
Publication date: 2021-10-22

Abstract

A single-seat or single-row double-seat variable-pitch minicar is composed of a front wheel frame, a chair, a rear wheel frame, a front cover plate, a roof, a power component and accessories, and is characterized in that the upper rear end of the minicar is provided with a chair hinged shaft seat, the middle part of the minicar extends forwards to form a front wheel beam cylinder body, the middle part of the minicar extends backwards to form a frame in a three-fork shape as seen from the top, the chair is hinged in the shaft seat at the upper rear end of the minicar, the rear end of the front wheel frame beam and the front end of the rear wheel frame beam are respectively provided with a circular platform sleeve, the frame cylinder body is provided with a corresponding conical surface, the rear end of the front wheel frame beam is inserted into the front wheel beam cylinder body, the two rear wheel frame beams are respectively inserted into the rear wheel beam cylinder body, the front cover plate is hinged on the front wheel frame, a steering wheel bracket and the roof are hinged on the front cover plate to form the minicar, the wheel span and the wheel span required for driving, riding comfort and safety running are changed by the extension of the front wheel frame and the rear wheel frame, when the automobile needs to be parked, the automobile is regular in shape after being contracted, small in size, easy to transport and park, simple in structure and easy to operate, and can supplement the existing automobile as a vehicle.

Description

Variable-pitch minicar

Technical Field

The invention relates to a distance-variable minicar which is light, convenient and suitable for transportation.

Background

The development of science and technology provides a plurality of transportation means for people's life, such as city railways, buses and the like, which bring people convenient, fast and comfortable traveling, especially play an important role in the peak of stream of people, but have some defects, such as large volume, wide occupied road surface, inflexible steering, large turning radius and the like, and especially waste when the stream of people is few, and cars, although comfortable to ride and meet the demand of people from a starting place to a destination, are often low in full load rate, and in addition, the amount of the automobiles in many cities is greatly increased at present, so that serious road congestion is caused, especially, the vehicles are more difficult to run and park in the cities with millions of automobiles, motorcycles are flexible, but the safety is low, and the development of the industry of the shared electric bicycles at present is influenced by the problems, so that the speed per hour is about 30-60km/h, the invention relates to a vehicle which is safe and comfortable to ride, has small volume after contraction and small occupied area when parked, is produced by further improving and optimizing a box type variable-pitch mini-vehicle (patent number: 2014208729617) in an ultra-miniature vehicle (patent number: 9422276.8), a telescopic station wagon (patent number: 200720000150.8), a box type tricycle (patent number: 98248138.1), automobile technology, electronic technology and the like, is comfortable and safe to drive and ride when unfolded to run, has wheel and axle distances required by proper speed, has small volume after contraction, is easy to transport and park, is carried when riding other vehicles such as high-speed rails and ships, is easy to realize automatic and intelligent control, not only supplements the existing vehicles, but also can become important vehicles in people's urban life in the future.

Disclosure of Invention

The invention aims to provide a vehicle which has simpler structure, meets the wheel track and the wheel base required by proper speed when unfolded for running, has small volume after contraction and is easy to transport and park, and mainly comprises a front bumper, a front wheel, a front frame, a front cover plate, a rearview mirror, a front windshield frame, a vehicle roof, a steering wheel bracket, a steering wheel, a chair supporting shaft seat, a front wheel beam cylinder body, a rear wheel beam, a rear wheel, a circular table sleeve, a rear wheel beam cylinder body, a connecting rod, a front wheel beam, a floor shell, a battery box, a pedal plate, a steering rod and accessories, and is characterized in that the rear upper end of the vehicle frame is provided with the chair hinged shaft seat, the middle part of the chair hinged shaft seat extends forwards to the front wheel beam cylinder body, the two inclined rear wheel beam cylinder bodies extend backwards to the rear wheel beam cylinder body, the two rear wheel beam cylinder bodies form a three-fork shape with the front wheel beam cylinder body when seen from the top, the front end of the front frame beam is connected with the front wheel support, the pedal plate and the floor into a whole to form a front wheel frame, the rear end of a front wheel beam is inserted into a front wheel beam cylinder body, two rear wheels are respectively fixed on a shaft seat at the rear end of the rear wheel beam, the front end of the rear wheel beam is inserted into a rear wheel beam cylinder body, the rear end of the front wheel beam and the front end of the rear wheel beam are respectively provided with a round table, the front end of the front wheel beam cylinder body and the rear end of the rear wheel beam cylinder body of a corresponding frame are also provided with conical surfaces, the rear end of the front wheel beam slides to the front end of the front wheel beam cylinder body, the front ends of the two rear wheel beams respectively slide to the rear end of the rear wheel beam cylinder body, the conical surfaces are respectively superposed, the rear end of a chair with the backrest and the seat integrated body is hinged on the shaft seat at the rear end of the frame, a front cover plate is hinged on the upper end of a front frame, the other end of the front windshield frame is hinged on a roof, a steering wheel bracket is hinged on the front cover plate, one end of a connecting rod is hinged on the lower end of the chair and is hinged on the steering wheel bracket, a steering wheel and a steering rod is arranged and connected on the steering wheel bracket, and the side surfaces of the hinged shaft of each component are respectively superposed with a round hole, the pins are respectively inserted, one end of each pin is provided with a small rotating handle, the other end of each pin is provided with a thread, and the other side of each transverse round hole is correspondingly provided with a nut, so that the frame is simpler and more reliable and is suitable for the condition of abnormal contraction.

Or the top ends of all supporting rods in the front wheel beam cylinder body and the rear wheel beam cylinder body are provided with sealing rings to form pistons, the cylinder body is divided into two parts of cavities, the two ends of the cavity are connected by pipelines, the middle part of each pipeline is provided with a rotary valve to form a liquid cylinder body and a cylinder body, and the extension of each beam is controlled by the valves; the other mode is that nuts are arranged at the tail ends of the beams of the frame, the supporting rods on the front wheel beam, the rear wheel beam and the supporting rod of the vehicle body are screw rods, the front wheel beam and the rear wheel beam are driven to stretch and retract by the rotation of the nuts, one end of the supporting rod is hinged with the vehicle roof, the other end of the supporting rod is hinged with the chair support, the vehicle roof is provided with a hook, the hook of the unfolded vehicle roof is clamped on a front cover plate and fixed by a metal lock catch, the steering wheel is made into a butterfly shape, a vertical rod in the middle of the steering wheel is inserted and can slide, the vertical rod is connected with a steering rod through a universal shaft and then is connected with swing rods, parallel link rod mechanisms are formed on two front wheel shafts through connecting rods, one end of the swing rods is connected with the connecting rods, and the steering wheel is rotated to enable the two front wheels to synchronously steer; the two front wheels or the two rear wheel hubs are provided with motors, the differential speed of the two front wheels is realized by adjusting the rotating speed of the motors when the vehicle turns, and the pedal plate controls the power component and the brake disc to move the vehicle forward or stop.

The invention is an automatic mode, which adopts a microcomputer (singlechip), a relay, a controller, an electromagnetic valve, a sensor, a motor, a battery and other circuits to program a corresponding program for control, the program flow is set, when the system is opened, a front wheel arm and a vehicle body supporting rod are extended, two rear wheels are suspended in the air, a front hydraulic rod is started, the two rear wheel arms are extended until a rear wheel frame is pushed to the rearmost end and fixed, the vehicle body supporting rod is contracted to enable the two rear wheels to land, otherwise, the vehicle body supporting rod is firstly dropped, the two rear wheels are suspended and then retracted, the vehicle body supporting rod is raised to retract the front wheel, a worm wheel is arranged at a steering wheel frame vertical pipe of the front wheel frame, the worm wheel and a steering support are fixed together, the worm and the motor are fixed at the steering wheel frame vertical pipe of the front wheel frame, the worm is driven to rotate by the motor, the front wheel is driven to steer, the automatic driving and steering are controlled by the controller, the intelligent mode that the user can unfold in front of the user for sitting without automatic retraction and drive to a specified position for storage is achieved.

Drawings

Fig. 1, a perspective front view of the present invention.

Fig. 2, a perspective top view of the present invention.

Fig. 3 is a front perspective view of the present invention after folding.

Fig. 4 is a folded bottom view of the present invention.

Fig. 5 is a simplified perspective front view of the present invention.

Fig. 6 is a simplified perspective top view of the present invention.

Detailed Description

The invention is further illustrated with reference to the figures and examples.

In the examples shown in fig. 1 and 2, 1, a front bumper, 2, a front wheel, 3, a front frame, 4, a front cover plate, 5, a rearview mirror, 6, a front windshield frame, 7, a roof, 8, a steering wheel bracket, 9, a steering wheel, 10, a chair, 11, a chair support shaft seat, 12, a front wheel beam cylinder body, 14, a rear wheel, 13, a rear wheel beam, 15, a circular table sleeve, 16, a rear wheel beam cylinder body, 17, a connecting rod, 18, a front wheel beam, 19, a floor shell, 20, a battery box, 21, a pedal plate, 22, a variable-pitch minicar of a steering rod, the frame is star-shaped as shown in fig. 1 and 2, the frame is fixed together by the chair support shaft seat (11), the front wheel beam cylinder body (12) and the rear wheel beam cylinder body (16), the front wheel beam cylinder body (12) extends forwards from the middle part, the two oblique rear wheel beam cylinder bodies (16) extend backwards, and the two rear wheel cylinder bodies (16) are in a three-fork shape with the angle to the front wheel beam (12) when viewed from the top, the front frame (3) is connected with a floor shell (19) and a front wheel (2) steering frame into a whole, the front frame is fixed at the front end of a front wheel beam (18) to form a front wheel frame, the rear end of the front wheel beam (18) and the front end of a rear wheel beam (13) are respectively provided with a circular truncated cone sleeve (15), the front end of a front wheel beam cylinder body (12) and the rear end of a rear wheel beam cylinder body (16) of a corresponding frame are also provided with corresponding conical surfaces, the rear end of the front wheel beam (18) is inserted into the front wheel beam cylinder body (12), two rear wheels (14) are respectively fixed on a rear end shaft seat of the rear wheel beam (13) to form a rear wheel frame, the front end of the rear wheel beam (13) is inserted into the rear wheel beam cylinder body (16), a chair (10) is hinged on a chair supporting shaft seat (11), a front machine cover plate (4) is hinged at the upper end of the front frame (3), the other end of the front machine cover plate (4) is hinged with a front wind blocking frame (6), the other end of the front machine cover plate (6) is hinged with a roof (7), and a steering wheel bracket (8) is hinged on the front machine cover plate (4), one end of a connecting rod (17) is hinged at the lower end of a chair (10) and the other end is hinged on a steering wheel bracket (8), a steering wheel (9) and a steering rod (22) are arranged and connected on the steering wheel bracket (8), and the side surfaces of the hinged shaft of each part are provided with transverse round holes into which pins are respectively inserted, the pins are provided with a rotary small handle at one end and threads at the other end, and nuts are correspondingly arranged at the other side of the transverse round holes, so that the frame is simple and reliable, in addition, sealing rings are arranged at the top ends of each beam in a front wheel beam cylinder body (11) and a rear wheel beam cylinder body (18) to form pistons, the cylinder body is divided into two parts of cavities, the two ends of the cylinder body are connected by pipelines, a rotary valve is arranged in the middle of the pipeline to form a liquid and cylinder body, the expansion of each beam is controlled by the valve, the shape of the steering wheel (9) can also be made into a butterfly shape, and a vertical rod in the middle of the rotary valve is inserted into a steering connecting rod chute, a steering connecting rod is connected with a steering rod (22) through a universal shaft and then connected with a swing rod, a parallel link mechanism is formed on the shafts of two front wheels (2) through the connecting rod, one end of the swing rod is connected with the connecting rod, so that the two front wheels (2) are synchronously steered by rotating a steering wheel (9), a pedal (21) is installed in a floor shell (19) to control a power part and a brake disc to enable a vehicle to move forwards or stop, a supporting wheel is arranged on a cross rod of a rear wheel beam cylinder body (16), the rear end of a front bumper (1) is propped by a spring to play a buffering role, a perspective front view of the embodiment is shown in figure 1, a perspective top view of the embodiment is shown in figure 2, a perspective front view of the embodiment is shown in figure 3, and a contraction back elevation view of the embodiment is shown in figure 4.

In the examples of fig. 5 and 6, two front wheel beams (18) and corresponding front wheel beam cylinders (12) are arranged on two sides of the chair (10) in parallel, two rear wheel beams (13) and corresponding rear wheel beam cylinders (16) are arranged in parallel, and the roof (7) and the front windshield frame (6) are removed, so that the components which are not frequently used by the vehicle are simplified, the structure of the vehicle frame is further simplified, the reliability of the vehicle frame is improved, the vehicle frame is suitable for occasions which frequent contraction is not needed, one end of a support rod can be hinged with the roof (7), and the other end of the support rod is hinged with a bracket of the chair (10).

When the front wheel frame is used, the front wheel is firstly extended, the vehicle body is supported by the vehicle body supporting rod to adapt to the wheel track change mode of the two rear wheels, the two rear wheels are suspended, the two rear wheels are extended again until the rear wheel frame is pushed to the rearmost end and the rear wheel frame is fixed, the vehicle body supporting rod is placed again to enable the two rear wheels to land, otherwise, the vehicle body supporting rod is firstly dropped, the two rear wheels which are suspended in the air are retracted again to the two rear wheels, the vehicle body supporting rod is lifted, the front wheel is retracted again, the chair and the front machine cover plate are rotated through the worm gear and the worm at the hinged end, the worm gear is arranged at the steering vertical pipe of the front wheel frame, the worm gear and the steering support are fixed together, the worm and the motor are fixed at the steering vertical pipe of the front wheel frame, and the worm gear is rotated through the motor to drive the worm to drive the front wheel to steer.

The invention is a suitable travel tool, the speed of the car in the general city is suitable at 60km/h at present, therefore it has wheel track and wheelbase that keep the appropriate speed while spreading, and ride comfortable, safe, and the appearance is regular after contracting automatically, easy to put things in good order and transport, the floor area is only 1/2-1/3 originally while parking, the volume is reduced by about 8-12 times, adopt the electric mode, the noise is small while driving, there is no discharge of the car exhaust, reduce the urban pollution, help the environmental protection, the vehicle is wide in journey, suitable for the age range is large, can also make some adjustments according to different needs, such as single seat or single row two seats, and the size, speed, car weight, etc., can become people's going to and going to the family, long-foot outing, serial travel tools of outdoor activities such as fishing and city sightseeing, when people go to the farther strange land, the folding type vehicle can be conveniently carried on a train, an automobile and a ship after being contracted and folded, even can be carried out by a plane for consignment and the like, can be conveniently unfolded into a vehicle for driving to meet the requirements of people on handling official business, sightseeing and the like when arriving at a destination, has high efficiency and comfort, small volume, free, flexible and convenient running, streamline appearance, elegant appearance and proper speed, can meet the requirements of rapidness and timeliness of urban life of people, is incorporated into the planning of a whole urban traffic network system to form a series of service measures of running, storage, maintenance, transportation and the like, can better play the role of the vehicle, becomes an important vehicle for urban life in the future, particularly depends on the Internet of things intelligent hardware, a supply chain, big data mining and safety technology to automatically run and turn according to a specified route in the development process of the Internet and traffic sharing economy, and is unfolded to be used for people to drive and take before a user, the intelligent mode that the automobile runs to the designated position for storage without automatic retraction is suitable for being used as a shared electric automobile in some dense population, building and road areas, is favorable for improving the service level of the existing shared automobile industry, and has positive significance for creating a safe, convenient and green traffic service network and promoting the upgrade of urban traffic travel modes.

Claims

1. The invention discloses a variable-pitch minicar mainly comprising a front bumper (1), front wheels (2), a front frame (3), a front cover plate (4), a rearview mirror (5), a front windshield frame (6), a roof (7), a steering wheel bracket (8), a steering wheel (9), a chair (10), a chair supporting shaft seat (11), a front wheel beam cylinder body (12), a rear wheel beam (13), rear wheels (14), a circular table sleeve (15), a rear wheel beam cylinder body (16), a connecting rod (17), a front wheel beam (18), a floor shell (19), a battery box (20), a pedal plate (21), a steering rod (22) and accessories, and is characterized in that the chair supporting shaft seat (11) is arranged at the upper rear end, the front wheel beam cylinder body (12) extends forwards and the two inclined rear wheel beam cylinder bodies (16) extend backwards to form a frame, the two rear wheel beam cylinder bodies (16) form an included angle with the front wheel beam cylinder body (12) in a three-fork shape when viewed from the top, the front frame (3) is connected with a floor shell (19) and a front wheel (2) steering frame into a whole, the front frame is fixed at the front end of a front wheel beam (18) to form a front wheel frame, the rear end of the front wheel beam (18) and the front end of a rear wheel beam (13) are respectively provided with a circular truncated cone sleeve (15), the front end of a front wheel beam cylinder body (12) and the rear end of a rear wheel beam cylinder body (16) of a corresponding frame are also provided with corresponding conical surfaces, the rear end of the front wheel beam (18) is inserted into the front wheel beam cylinder body (12), two rear wheels (14) are respectively fixed on a rear end shaft seat of the rear wheel beam (13) to form a rear wheel frame, the front end of the rear wheel beam (13) is inserted into the rear wheel beam cylinder body (16), a chair (10) is hinged on a chair supporting shaft seat (11), a front machine cover plate (4) is hinged at the upper end of the front frame (3), the other end of the front machine cover plate (4) is hinged with a front wind blocking frame (6), the other end of the front machine cover plate (6) is hinged with a roof (7), and a steering wheel bracket (8) is hinged on the front machine cover plate (4), one end of a connecting rod (17) is hinged to the lower end of a chair (10) and the other end of the connecting rod is hinged to a steering wheel bracket (8), transverse round holes are formed in the side face superposition positions of hinged shafts of all parts, pins are inserted into the transverse round holes respectively, a rotating small handle is arranged at one end of each pin, threads are arranged at the other end of each pin, nuts are correspondingly arranged on the other side of the transverse round holes, and a steering wheel (9) and a steering rod (22) are arranged and connected to the steering wheel bracket (8).

2. A pitch-variable minicar according to claim 1, wherein two front wheel beams (18) and corresponding front wheel beam cylinders (12) are placed in parallel on either side of the chair (10).

3. A pitch-controlled minicar according to claim 1, wherein the two rear wheel beams (13) and the corresponding rear wheel beam cylinders (16) are disposed in parallel.

4. A pitch-variable minicar according to claim 1, characterised in that the support bar is hinged at one end to the roof (7) and at the other end to the chair (10) support.