CN209988045U

CN209988045U - Four-wheel bicycle

Info

Publication number: CN209988045U
Application number: CN201920651843.6U
Authority: CN
Inventors: 范兴荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-08
Filing date: 2019-05-08
Publication date: 2020-01-24
Anticipated expiration: 2029-05-08

Abstract

The utility model discloses a four-wheel bicycle belongs to the vehicle field, has solved the current hard problem of riding of four-wheel bicycle. The utility model discloses a frame, two front wheels, two rear wheels, two semi-axles, the rear axle, differential mechanism, the head pipe, two step bars, first chain wheel and first flywheel, still include alternate motion device, alternate motion device includes bent axle and two connecting rods, the bent axle both ends are connected with the rotation of frame, first chain wheel is established on the bent axle, the bent axle has two flexion, two connecting rods rotate respectively to be connected on two flexion, the step bar is the form of bending, the department of bending of two step bars rotates respectively and connects in the frame both sides, the step bar other end rotates with the connecting rod to be connected, first flywheel is connected on the differential mechanism shell, be equipped with first chain between first chain wheel and the first flywheel. The utility model discloses ride laborsavingly, the safety and stability is high.

Description

Four-wheel bicycle

Technical Field

The utility model belongs to the vehicle field, concretely relates to four-wheel bicycle.

Background

The existing traditional two-wheeled bicycle is poor in stability, high in riding difficulty and not suitable for the old to ride. Based on this, people invent and develop the quadricycle, and the existing quadricycle design has the following defects: riding is laborious, the flexibility is poor, the balance is not good, the safety performance is not high, therefore, the existing four-wheel bicycle design still can not meet the riding requirements of the old.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a four-wheel bicycle to solve current four-wheel bicycle and ride hard problem.

The technical scheme of the utility model is that: a four-wheel bicycle comprises a frame, two front wheels, two rear wheels, two half shafts, a rear axle, a differential mechanism, a head pipe, two pedal rods, a first chain wheel and a first flywheel, wherein the head pipe is positioned at the front end of the frame, the two front wheels are arranged at the lower end of the head pipe through the front wheel axle, the rear axle is positioned at the rear end of the frame, the differential mechanism is connected on the rear axle, the two half shafts are respectively connected with the differential mechanism and the rear axle, the two rear wheels are respectively positioned at the outer ends of the two half shafts, one ends of the pedal rods are connected with pedals, the four-wheel bicycle further comprises an alternative motion device, the alternative motion device comprises a crankshaft and two connecting rods, the two ends of the crankshaft are rotatably connected with the frame, the first chain wheel is arranged on the crankshaft, the crankshaft is provided with two bending parts, the two connecting rods are respectively rotatably connected with the two bending parts, the pedal rods are bent, the bending parts of the two, the first flywheel is connected to the differential shell, and a first chain is arranged between the first chain wheel and the first flywheel.

As the utility model discloses a further improvement still includes and turns to the equalizer, turns to the equalizer and includes diaphragm and two risers, and two risers are connected respectively in diaphragm both ends below, and two riser lower extremes link to each other with the front wheel axle, and the head pipe lower extreme is equipped with the ascending slot hole of vertical side, and the front wheel axle passes the slot hole, is equipped with the pin between head pipe and front wheel axle, is equipped with the limiting plate on the head pipe, is equipped with spacing hole on the limiting plate, and the diaphragm passes spacing hole by spacing, prevents that the diaphragm from leaning forward. )

As the utility model discloses a further improvement still includes motor and battery, and the battery provides the electric energy for the motor, is connected with the second flywheel on the motor, is equipped with the second chain wheel on differential mechanism's the shell, is equipped with the second chain between second flywheel and the second chain wheel.

As a further improvement of the utility model, still include preceding suspension spring, preceding suspension spring is located the head pipe, and preceding suspension spring upper end is passed through spring locating pin and is linked to each other with the handlebar riser, and preceding suspension spring lower extreme passes through handlebar riser location removable pin and links to each other with the head pipe.

As a further improvement, the utility model also comprises a rear shock-absorbing spring, the upper end of the rear shock-absorbing spring is connected with the frame, and the lower end is connected with the front end of the rear axle.

As a further improvement, the utility model is provided with a brake device on two front wheels and two rear wheels.

As a further improvement of the utility model, the wheel track between the two front wheels is 250mm, when the turning radius is minimum, the left and right turning of the two front wheels can not lean against the head pipe, and the wheel track still can keep the turning light and flexible under the action of the steering balancer; the track width between the two rear wheels is 650 mm. Through the test transformation of riding many times, think that such wheel base is the most suitable, not only is favorable to balancing, still conveniently gets into the elevator. In addition, the configuration that the wheel track of the front wheel is 250mm and the wheel track of the rear wheel is 650mm is beautiful, elegant and novel.

As a further improvement, the utility model also comprises an electric horn and a warning car lamp, which plays the role of reminding and is safer to ride.

As a further improvement of the utility model, the storage box is arranged on the frame between the two rear wheels, which is convenient and practical.

The utility model has the advantages that:

1. the utility model designs an alternate motion device, steps on the pedal through two feet in turn, drives two connecting rods and pulls the bent axle to make 360 degrees rotations, makes the first bud dish fixed on the bent axle make 360 degrees rotations to drive the rear wheel through first chain, first flywheel, differential mechanism, semi-axis and rotate, traditional four-wheel bicycle need step on 360 degrees rotations, and the utility model discloses only need two feet to step on the pedal with 90 degrees in turn, just can drive four-wheel bicycle and go forward, light laborsaving;

2. the utility model designs the steering balancer on the front wheel shaft, when turning, the front wheel shaft rotates around the pin by the traction of the steering balancer, so that the two front wheels are always kept close to the ground without tilting, the side turning of the bicycle body is prevented, and the safety and the stability of the four-wheel bicycle are increased;

3. the first flywheel and the second chain wheel are both arranged on the differential mechanism, double-rear-wheel driving can be realized no matter the bicycle is pedaled or electric, and the two rear wheels keep differential rotation during turning, so that the two rear wheels are ensured to always abut against the ground, and the vehicle body is prevented from side turning;

4. the utility model can select two driving modes of manpower or electric power, and can also be used simultaneously;

5. the utility model designs the four-wheel bicycle suitable for old people to ride instead of walk from the angle of labor saving and safety, which is comfortable and labor saving, is not easy to turn over, has the advantages of dexterity, reliability, safety and the like, can be normally ridden in ice and snow weather, is not afraid of slipping and falling down, can be ridden and stopped, and can be seated on the saddle for rest without getting off;

6. the utility model has the advantages of simple and reasonable structure, the part that uses is simple, easily industrialization.

Drawings

FIG. 1 is a top view of the structure of the present invention;

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

FIG. 3 is a schematic structural view of the alternative movement apparatus of the present invention;

FIG. 4 is a schematic structural diagram of a steering balancer of the present invention;

FIG. 5 is a schematic structural view of a front suspension spring according to the present invention;

fig. 6 is a state diagram of the steering balancer of the present invention.

In the drawings, 1-vehicle frame; 2-front wheels; 3-rear wheel; 4-handlebar stem; 5-a handlebar vertical pipe positioning movable pin; 6-crankshaft; 601-a bend; 7-a first chain wheel; 8-connecting rod; 9-pedal lever; 901-bending part; 10-a first chain; 11-a transverse plate; 12-a rear axle; 13-a differential; 14-half shaft; 15-a first flywheel; 16-an electric machine; 17-a vertical plate; 18-head tube; 19-front wheel axle; 20-pins; 21-a limiting plate; 22-treading; 23-a second flywheel; 24-a second crankset; 25-a second chain; 26-rear suspension spring; 27-front suspension springs; 28-spring locating pin.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings.

As shown in fig. 1-5, a four-wheel bicycle comprises a frame 1, two front wheels 2, two rear wheels 3, two half shafts 14, a rear axle 12, a differential 13, a head tube 18, two pedal rods 9, a first chain wheel 7 and a first flywheel 15, wherein the head tube 18 is arranged at the front end of the frame 1, the two front wheels 2 are arranged at the lower end of the head tube 18 through a front wheel axle 19, the rear axle 12 is arranged at the rear end of the frame 1, the differential 13 is connected to the rear axle 12, the two half shafts 14 are respectively connected with the differential 13 and the rear axle 12, the two rear wheels 3 are respectively arranged at the outer ends of the two half shafts 14, one end of the pedal rod 9 is connected with a pedal 22, the four-wheel bicycle further comprises an alternate motion device, the alternate motion device comprises a crankshaft 6 and two connecting rods 8, two ends of the crankshaft 6 are rotatably connected with the frame 1, the first chain wheel 7 is arranged on the crankshaft 6, the two bending parts 601, the two connecting rods 8 are, the pedal rods 9 are bent, the bent parts 901 of the two pedal rods 9 are respectively rotatably connected to two sides of the frame 1, the other ends of the pedal rods 9 are rotatably connected with the connecting rod 8, the first flywheel 15 is connected to the shell of the differential mechanism 13, and a first chain 10 is arranged between the first chain wheel 7 and the first flywheel 15.

The steering balancer comprises a transverse plate 11 and two vertical plates 17, the two vertical plates 17 are connected to the lower portions of two ends of the transverse plate 11 respectively, the lower ends of the two vertical plates 17 are connected with a front wheel axle 19, a long hole in the vertical direction is formed in the lower end of a head pipe 18, the front wheel axle 19 penetrates through the long hole, a pin 20 is arranged between the head pipe 18 and the front wheel axle 19, a limiting plate 21 is arranged on the head pipe 18, a limiting hole is formed in the limiting plate 21, and the transverse plate 11 penetrates through the limiting hole to be limited.

The differential mechanism further comprises a motor 16 and a storage battery, wherein the storage battery provides electric energy for the motor 16, a second flywheel 23 is connected onto the motor 16, a second chain wheel 24 is arranged on a shell of the differential mechanism 13, and a second chain 25 is arranged between the second flywheel 23 and the second chain wheel 24.

The bicycle handlebar stem shock absorber further comprises a front shock absorbing spring 27, wherein the front shock absorbing spring 27 is positioned in the head tube 18, the upper end of the front shock absorbing spring 27 is connected with the handlebar stem 4 through a spring positioning pin 28, and the lower end of the front shock absorbing spring 27 is connected with the head tube 18 through the handlebar stem positioning movable pin 5.

And a rear suspension spring 26, wherein the upper end of the rear suspension spring 26 is connected to the frame 1, and the lower end is connected to the front end of the rear axle 12.

And the two front wheels 2 and the two rear wheels 3 are respectively provided with an internal braking device. Two front wheels 2 are controlled by right brake lever, and two rear wheels 3 are controlled by left brake lever, and controllable effective during the braking, it is secure to ride safely.

The track width between the two front wheels 2 is 250mm and the track width between the two rear wheels 3 is 650 mm.

Also comprises an electric horn and a warning car lamp.

A storage box is arranged on the frame 1 between the two rear wheels 3.

When the left pedal 22 is stepped on during riding, the left pedal rod 9 pulls the left pull rod 8 to move forwards, the left pull rod 8 drives the crankshaft 6 to rotate forwards by 180 degrees, so that the differential 13 is driven to rotate through the first chain wheel 7, the first chain 10 and the first flywheel 15, the rear wheel 3 is driven to rotate forwards through the half shaft 14, and meanwhile, the crankshaft 6 pulls the right pull rod 8 to move backwards to drive the right pedal 22 to lift; similarly, when the right pedal 22 is depressed, the right pull rod 8 drives the crankshaft 6 to rotate forward by 180 degrees, so as to drive the rear wheel 3 to rotate forward, and simultaneously drive the left pedal 22 to lift. The two feet step on the pedal alternately, each foot only needs to step on 90 degrees, the vehicle body can be driven to move forwards, labor and force are saved, and the phenomenon that the traditional pedal rod does not work at a 360-degree rotating dead angle is eliminated.

During turning, under the traction action of the steering balancer, the front wheel axle 19 rotates around the pin 20 in the long hole at the lower end of the head pipe 18 by a certain angle according to the turning angle, so that the two front wheels 2 are always close to the ground, and as shown in fig. 6, the two wheels are naturally differential, and the turning is light, stable and firm; the differential mechanism 13 on the rear axle 12 ensures that the two rear wheels 3 rotate in a differential way, are stressed evenly and walk stably. No matter go straight or turn, the utility model discloses homoenergetic keeps the four-wheel to land under any walking state, is difficult for turning on one's side, and the security performance improves greatly.

When the electric drive is used, the motor 16 runs, the differential 13 is driven to rotate through the second flywheel 23, the second chain 25 and the second chain wheel 24, and then the rear wheel 3 is driven to rotate through the half shaft 14.

The utility model discloses the purpose that sets up motor and battery is for riding passerby provides some auxiliary power, makes to ride passerby and chooses the mode of riding at will, both can pedal, can be electronic again, also can both go on simultaneously, comfortable freely, easily ride.

Claims

1. The utility model provides a four-wheel bicycle, includes frame, two front wheels, two rear wheels, two semi-axles, rear axle, differential mechanism, head pipe, two pedal levers, first chain wheel and first flywheel, the head pipe is located the frame front end, and two front wheels pass through the front wheel axle and install at the head pipe lower extreme, the rear axle is located the frame rear end, differential mechanism connects on the rear axle, and two semi-axles link to each other with differential mechanism respectively and link to each other with the rear axle, and two rear wheels are located the outer end of two semi-axles respectively, and pedal lever one end is connected with pedal, its characterized in that: still include alternate motion device, alternate motion device includes bent axle (6) and two connecting rods (8), bent axle (6) both ends are rotated with frame (1) and are connected, establish on bent axle (6) first chain wheel (7), bent axle (6) have two flexion (601), and two connecting rods (8) rotate respectively and connect on two flexion (601), pedal pole (9) are the form of bending, and the department of bending (901) of two pedal poles (9) rotate respectively and connect in frame (1) both sides, and pedal pole (9) other end rotates with connecting rod (8) to be connected, first flywheel (15) are connected on differential mechanism (13) shell, are equipped with first chain (10) between first chain wheel (7) and first flywheel (15).

2. A quadricycle as claimed in claim 1, wherein: still include and turn to the balancer, turn to the balancer and include diaphragm (11) and two risers (17), connect respectively in diaphragm (11) both ends below two risers (17), two riser (17) lower extreme link to each other with preceding axletree (19), head pipe (18) lower extreme is equipped with the ascending slot hole of vertical side, and preceding axletree (19) pass the slot hole, are equipped with pin (20) between head pipe (18) and preceding axletree (19), are equipped with limiting plate (21) on head pipe (18), are equipped with spacing hole on limiting plate (21), and diaphragm (11) pass spacing hole by spacingly.

3. A quadricycle as claimed in claim 1 or 2, wherein: still include motor (16) and battery, the battery provides the electric energy for motor (16), is connected with second flywheel (23) on motor (16), is equipped with second chain wheel (24) on differential mechanism's (13) the shell, is equipped with second chain (25) between second flywheel (23) and second chain wheel (24).

4. A quadricycle as defined in claim 3, wherein: the bicycle handlebar shock absorber is characterized by further comprising a front shock absorbing spring (27), wherein the front shock absorbing spring (27) is located in the head pipe (18), the upper end of the front shock absorbing spring (27) is connected with the handlebar vertical pipe (4) through a spring positioning pin (28), and the lower end of the front shock absorbing spring (27) is connected with the head pipe (18) through a handlebar vertical pipe positioning movable pin (5).

5. A quadricycle as defined in claim 4, wherein: the rear suspension device is characterized by further comprising a rear suspension spring (26), wherein the upper end of the rear suspension spring (26) is connected to the frame (1), and the lower end of the rear suspension spring is connected to the front end of the rear axle (12).

6. A quadricycle as defined in claim 5, wherein: the two front wheels (2) and the two rear wheels (3) are respectively provided with an armful brake device.

7. A quadricycle as defined in claim 6, wherein: the track between the two front wheels (2) is 250mm, and the track between the two rear wheels (3) is 650 mm.

8. A quadricycle as defined in claim 7, wherein: also comprises an electric horn and a warning car lamp.

9. A quadricycle as defined in claim 8, wherein: a storage box is arranged on the frame (1) between the two rear wheels (3).