CN214189971U

CN214189971U - Pull rod vehicle

Info

Publication number: CN214189971U
Application number: CN202120148204.5U
Authority: CN
Inventors: 陈浮华
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-01-20
Filing date: 2021-01-20
Publication date: 2021-09-14
Anticipated expiration: 2031-01-20

Abstract

The utility model discloses a pull rod car, including frame, saddle, front wheel, rear wheel, front sprocket, rear sprocket, driving sprocket, actuating lever and steering pedal, front sprocket installs on the frame, and rear sprocket installs at the rear wheel epaxially, and driving sprocket passes through the bottom of drive support fixed connection at the actuating lever, the actuating lever passes through the fixed bolster and installs on the frame, rotatable coupling between actuating lever and the fixed bolster to drive driving sprocket and swing together when the actuating lever swing back and forth, connect through the chain between front sprocket and the rear sprocket, driving sprocket is at the swing in-process, and its outlying sprocket meshes with the chain to it rotates and drives the rear wheel through chain and rear sprocket is rotatory to drive the rear wheel together, steering pedal drives the front wheel through the bogie and rotates about. The utility model discloses stability is better, and suitable crowd is wider, and the driver sits this car, as long as both feet control the direction, pulling actuating lever both hands tandem alright realize the walking.

Description

Pull rod vehicle

Technical Field

The utility model belongs to the vehicle field of helping hand to walk, concretely relates to pull rod car.

Background

Currently, bicycles and tricycles are the main means of close-range transportation, but both have certain requirements on the physical strength and age of the driver. Therefore, the current two-wheeled and three-wheeled bicycles are not suitable for the elderly and the people with some inconvenience in legs and feet. In modern society, the aging of population becomes a non-competitive fact, and the old people often need to go for walking instead of walk by means of auxiliary tools due to the degradation of physical functions. Although some existing mobility scooter for the elderly are available, the mobility scooter needs a certain driving skill or needs to be healthy for legs and feet, and is not suitable for the elderly with poor physical strength or coordination and the people with inconvenient legs and feet, and the mobility scooter has the defects of poor stability and the like.

Disclosure of Invention

An object of the utility model is to provide a stability is good, is suitable for the wide pull rod car of crowd.

The utility model adopts the technical proposal that: the utility model provides a pull rod car, is except including frame, saddle, front wheel and rear wheel, still includes the front sprocket simultaneously, the rear sprocket, drive sprocket, actuating lever and turns to pedal, the front sprocket is installed on the frame, and the rear sprocket is installed on the rear wheel axle, and drive sprocket passes through the bottom of drive support fixed connection at the actuating lever, the actuating lever passes through the fixed bolster and installs on the frame, rotatable coupling between actuating lever and the fixed bolster to drive sprocket and swing together when the actuating lever swings from beginning to end, connect through the chain between front sprocket and the rear sprocket, drive sprocket is at the swing in-process, and its outlying sprocket tooth meshes with the chain to it rotates and drives the rear wheel through chain and rear sprocket is rotatory and then drive the rear wheel and rotate, turn to pedal drives the front wheel through the bogie and carries out the rotation about.

Furthermore, the number of the front wheels is one, and the number of the rear wheels is two.

Furthermore, the front wheel is mounted on a fork frame through a wheel shaft, and the upper end of the fork frame is rotatably connected with the frame.

Furthermore, the steering pedal comprises a left pedal and a right pedal, the left pedal and the right pedal are mounted at two ends of a connecting rod, and the middle of the connecting rod is fixedly connected with the upper part of the fork frame.

Furthermore, the front wheel and the rear wheel are respectively provided with two wheels.

Furthermore, the two front wheels are respectively arranged on the two fork frames through wheel shafts, each front wheel is provided with one fork frame, and the upper ends of the two fork frames are rotatably connected with the frame.

Furthermore, the steering pedals comprise a left pedal and a right pedal, the left pedal is fixedly mounted on a left steering frame, the right pedal is fixedly mounted on a right steering frame, the lower ends of the left steering frame and the right steering frame are respectively mounted at two ends of an axle of two front wheels, the left steering frame and the right steering frame are connected with each other through a connecting rod, and two ends of the connecting rod are rotatably connected with the two steering frames.

Furthermore, a brake handle is arranged at the upper end of the driving rod and connected with a brake through a brake cable, and the brake is arranged on the rear wheel.

Furthermore, the rear chain wheel and the driving chain wheel both adopt flywheels with unidirectional driving function.

Furthermore, the frame is made of aluminum alloy materials.

The utility model has the advantages that: the pull rod vehicle can be designed into three wheels or four wheels, has better stability and wider application range, and is particularly suitable for the old and people who have inconvenient legs and feet or can not walk more. When a driver sits on the bicycle, the driver can walk by pulling the driving rods in tandem by two hands as long as the directions of the two feet are controlled.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

FIG. 1 is a front view of a three-wheeled trolley;

FIG. 2 is a schematic top view of the three-wheeled trolley;

FIG. 3 is a schematic view of a steering mechanism of the three-wheeled trolley;

FIG. 4 is a front view of the four-wheeled trolley;

FIG. 5 is a schematic top view of the four-wheeled trolley;

FIG. 6 is a schematic view of a steering mechanism of the four-wheeled trolley;

FIG. 7 is a schematic view of the drive mechanism of the trolley;

FIG. 8 is a schematic view of the pull bar vehicle with the drive sprocket separated from the chain;

labeled as: 1-vehicle frame, 2-vehicle seat, 3-front wheel, 4-rear wheel, 5-front chain wheel, 6-rear chain wheel, 7-driving chain wheel, 8-driving rod, 9-steering pedal, 10-chain, 11-fixing bracket, 12-driving bracket, 13-fork frame, 14-connecting rod, 15-steering frame, 16-brake handle and 17-brake cable.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 to 8, the present invention provides an embodiment: a pull rod vehicle mainly comprises a vehicle frame 1, a vehicle seat 2, a front wheel 3, a rear wheel 4, a front chain wheel 5, a rear chain wheel 6, a driving chain wheel 7, a driving rod 8 and a steering pedal 9. The front chain wheel 5 is arranged on the frame 1, the rear chain wheel 6 is arranged on a rear wheel shaft, the driving chain wheel 7 is fixedly connected to the bottom end of the driving rod 8 through a driving bracket 12, the driving chain wheel 7 and the driving bracket 12 are mutually connected through a fixed shaft, two ends of the fixed shaft are fixed on the driving bracket 12, and the driving chain wheel 7 can rotate around the fixed shaft; the driving rod 8 is mounted on the frame 1 through a fixing support 11, the driving rod 8 is rotatably connected with the fixing support 11, the driving chain wheel 7 is driven to swing together when the driving rod 8 swings back and forth, the front chain wheel 5 is connected with the rear chain wheel 6 through a chain 10, the peripheral chain wheel teeth of the driving chain wheel 7 are meshed with the chain 10 in the swinging process, the chain 10 and the rear chain wheel 6 drive a rear wheel shaft to rotate so as to drive the rear wheel 4 to rotate, and the steering pedal 9 drives the front wheel 3 to rotate left and right through the bogie 15.

Based on the above structure, the utility model discloses a further preferred embodiment, front wheel 3 sets up one, and rear wheel 4 sets up two. In this embodiment the front wheel 3 is mounted on a fork 13 via an axle, the upper end of the fork 13 being rotatably connected to the frame 1. The steering pedal 9 comprises a left pedal and a right pedal which are arranged at two ends of a connecting rod 14, and the middle of the connecting rod 14 is fixedly connected with the upper part of the fork frame 13.

In a further preferred embodiment of the present invention, the front wheel 3 and the rear wheel 4 are provided in two. In this embodiment, the two front wheels 3 are respectively mounted on two forks 13 through wheel shafts, one fork 13 is arranged on each front wheel 3, and the upper ends of the two forks 13 are rotatably connected with the frame 1. The steering pedals 9 comprise a left pedal and a right pedal, the left pedal is fixedly mounted on a left steering frame, the right pedal is fixedly mounted on a right steering frame, the lower ends of the left steering frame and the right steering frame are respectively mounted at two ends of a wheel shaft of the two front wheels 3, the left steering frame and the right steering frame are connected with each other through a connecting rod 14, and two ends of the connecting rod 14 are rotatably connected with the two steering frames 15.

On the basis of the above embodiments, the upper end of the driving rod 8 may further be provided with a brake handle 16, the brake handle 16 is connected to a brake through a brake cable 17, the brake is arranged on the rear wheel 4, and the brake structure of the existing bicycle is adopted in this portion. In addition, the frame 1 is made of aluminum alloy materials, so that the weight is reduced, and the transportation, the carrying and the like are facilitated.

In the above embodiment, the rear sprocket 6 and the driving sprocket 7 both adopt flywheels with unidirectional driving function, and the flywheels are similar to driving flywheels of bicycles and can be realized by adopting the existing products.

The utility model discloses an operation process: firstly, before the vehicle is used, adaptation is performed for a period of time, and the vehicle is driven to go on the road after the vehicle is familiar with the operation process. For the three-wheel type pull rod vehicle, the structural design is used for normal people, and is particularly suitable for partial disabled people, such as people who only have healthy legs and feet, the people only need to tread by a single foot to steer to the foot to control the direction, and then the driving rod is pushed and pulled back and forth by two hands to walk. For the four-wheel type pull rod vehicle, the structural design has better stability, a driver sits on the vehicle, the direction is controlled by two feet, and the driver can walk by pulling the driving rod with the two hands to pull the pull rod. When the pull rod trolley is not used, the driving rod can be put down to enable the driving chain wheel and the chain to fall off, and when the pull rod trolley is ready for use, the driving rod is pushed up to enable the driving chain wheel and the chain to be meshed together.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the above embodiments do not limit the scope of the present invention in any way, and all technical solutions obtained by using equivalent substitution modes and the like fall within the scope of the present invention.

The utility model discloses the part that does not relate to all is the same with prior art or can adopt prior art to realize.

Claims

1. The utility model provides a pull rod car, includes the frame, and the saddle, front wheel and rear wheel, its characterized in that still includes front sprocket, rear sprocket, drive sprocket, actuating lever and turns to pedal, front sprocket installs on the frame, and rear sprocket installs on the rear wheel axle, and drive sprocket passes through drive support fixed connection in the bottom of actuating lever, the actuating lever passes through the fixed bolster and installs on the frame, rotatable coupling between actuating lever and the fixed bolster to drive sprocket and swing together when the actuating lever swings from beginning to end, connect through the chain between front sprocket and the rear sprocket, drive sprocket is at the swing in-process, and its outlying sprocket tooth meshes with the chain to it rotates and drives the rear wheel through chain and rear sprocket is rotatory and then drive the rear wheel and rotate, turn to pedal drives the front wheel through the bogie and rotates about.

2. A trolley as claimed in claim 1, wherein there are one front wheel and two rear wheels.

3. A trolley as claimed in claim 2 wherein the front wheel is mounted by means of an axle to a fork, the upper end of which is pivotally connected to the frame.

4. The trolley according to claim 3 wherein the steering pedals comprise left and right pedals mounted at opposite ends of a connecting rod, the middle of which is fixedly attached to the top of the fork.

5. A trolley as claimed in claim 1, characterized in that there are two of said front wheels and rear wheels, respectively.

6. A trolley according to claim 5 wherein the two front wheels are mounted on two forks via respective axles, one fork for each front wheel and the upper ends of both forks are pivotally connected to the frame.

7. The trolley according to claim 6, wherein the steering pedals comprise a left pedal and a right pedal, the left pedal is fixedly mounted on a left bogie, the right pedal is fixedly mounted on a right bogie, the lower ends of the left bogie and the right bogie are respectively mounted at two ends of an axle of the two front wheels, the left bogie and the right bogie are connected with each other through a connecting rod, and two ends of the connecting rod are rotatably connected with the two bogies.

8. The trolley according to claim 1, wherein a brake handle is arranged at the upper end of the driving rod, the brake handle is connected with a brake through a brake cable, and the brake is arranged on the rear wheel.

9. The trolley of claim 1 wherein the rear sprocket and the drive sprocket each employ a freewheel having a one-way drive function.

10. The trolley according to claim 1 wherein the frame is made of an aluminum alloy.