CN215883923U

CN215883923U - Tricycle with adjustable wheel track

Info

Publication number: CN215883923U
Application number: CN202021367161.1U
Authority: CN
Inventors: 吕万友
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-07-13
Filing date: 2020-07-13
Publication date: 2022-02-22
Anticipated expiration: 2030-07-13

Abstract

A tricycle with adjustable wheel track belongs to the field of vehicles and solves the problems of tricycles, and comprises a front wheel, two rear wheels, a frame, a steering rod, a front fork, a handlebar and a saddle; the front wheel is arranged as an electric driving wheel; two opposite slide ways are fixedly connected below the frame, a slide bar is respectively arranged in the two slide ways, and the slide bar is only connected with the corresponding slide way in an axial sliding manner; the wheel shafts of the two rear wheels are respectively fixedly connected with one end of the outer side of one sliding rod, so that the distance between the rear wheels can be adjusted in a sliding manner; the sliding rods are of hollow tubular structures, nuts are respectively arranged at the opposite ends of the two sliding rods and are fixedly connected with the corresponding sliding rods, the directions of internal threads of the two nuts are opposite, the two nuts are arranged on one lead screw, and external threads on the two sides of the middle of the lead screw are respectively matched with the internal threads of the corresponding nuts, so that the wheel distance is increased or decreased when the lead screw is rotated; a hand wheel is arranged in the middle of the screw rod; the bicycle is used for riding.

Description

Tricycle with adjustable wheel track

Technical Field

The utility model belongs to the field of vehicles, and particularly relates to a tricycle with an adjustable wheel span.

Background

The tricycle can be kept stable in a static state, can be ridden without additional exercise, is widely applied and is particularly suitable for old people and disabled people; however, the wheels of the tricycle are arranged in a triangular mode, so that the occupied area is large, the stability of the tricycle is affected if the distance between the two rear wheels is reduced, and the tricycle generally adopts a small wheel track and is poor in stability.

Disclosure of Invention

The utility model aims to solve the problems of the tricycle and provides a tricycle with an adjustable wheel track, which adopts the following technical scheme:

a tricycle with adjustable wheel track comprises a front wheel, two rear wheels, a frame, a steering rod, a front fork, a handlebar and a saddle; the front end of the frame is rotatably connected with a steering rod, the lower end of the steering rod is connected with a front wheel through a front fork, the upper end of the steering rod is connected with a handlebar, and two rear wheels and a saddle are arranged on the rear side of the frame; the tricycle is a basic structure of a tricycle, in order to realize that the wheel track of a rear wheel is adjustable, a front wheel is an electric driving wheel, the prior art is easy to realize, and the conventional products generally adopt a hub motor, a battery, a brake and the like and are arranged according to the prior art; because the front wheel is an electric driving wheel, a changed space is provided for the connecting structure of the two rear wheels and the frame; the two opposite slide ways are fixedly connected below the frame, the two slide ways are internally provided with a slide rod respectively, and the slide rods are only in axial sliding connection with the corresponding slide ways, namely the slide ways are in sliding fit with the slide rods and can be in non-circular shapes such as square shapes, triangular shapes and the like or in circular shapes with keys, so that the slide ways and the slide rods are prevented from rotating relatively or the slide rods are prevented from shaking in the slide ways; the wheel shafts of the two rear wheels are respectively fixedly connected with one end of the outer side of one sliding rod, so that the distance between the rear wheels can be adjusted in a sliding manner; the sliding rods are of hollow tubular structures, nuts are respectively arranged at the opposite ends of the two sliding rods and are fixedly connected with the corresponding sliding rods, the directions of internal threads of the two nuts are opposite, the two nuts are arranged on one lead screw, and external threads on the two sides of the middle of the lead screw are respectively matched with the internal threads of the corresponding nuts, so that the wheel distance is increased or decreased when the lead screw is rotated; a hand wheel is arranged in the middle of the screw rod, so that the screw rod can be conveniently and manually rotated.

The utility model has the beneficial effects that: can increase the rear wheel track and improve stability when riding, can reduce the rear wheel track when parking, save area to utilize current forerunner's electric tricycle to reequip easily, frame, steering column and saddle still can adopt beta structure.

Description of the drawings:

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

FIG. 2 is a schematic view of the rear wheel to frame connection;

fig. 3 is an exploded schematic view of fig. 2.

The specific implementation mode is as follows:

referring to fig. 1 to 3, a tricycle with adjustable wheel track comprises a front wheel 1 and two rear wheels 2, and further comprises a frame 3, a steering rod 4, a front fork 5, a handlebar 6 and a saddle 7; the front end of the frame 3 is rotatably connected with a steering rod 4, the lower end of the steering rod 4 is connected with a front wheel 1 through a front fork 5, the upper end of the steering rod 4 is connected with a handlebar 6, and two rear wheels 2 and a saddle 7 are arranged on the rear side of the frame 3; the tricycle is a basic structure of the tricycle, in order to realize that the wheel track of the rear wheel 2 is adjustable, the front wheel 1 is an electric driving wheel, the prior art is easy to realize, and the existing products generally adopt a hub motor, and a battery, a brake and the like are arranged according to the prior art; because the front wheel 1 is an electric driving wheel, a changed space is provided for the connecting structure of the two rear wheels 2 and the frame 3; the lower part of the frame 3 is fixedly connected with two opposite slide ways 3-1, a slide bar 3-2 is respectively arranged in the two slide ways 3-1, the slide bar 3-2 is only in axial sliding connection with the corresponding slide way 3-1, namely the slide way 3-1 and the slide bar 3-2 are in sliding fit, can be in a non-circular shape such as a square shape, a triangle shape and the like, or are in a circular shape with a key, so that the slide way 3-1 and the slide bar 3-2 are prevented from rotating relatively or the slide bar 3-2 is prevented from shaking in the slide way 3-1; the wheel shafts of the two rear wheels 2 are respectively and fixedly connected with one end of the outer side of one sliding rod 3-2, so that the distance between the rear wheels 2 can be adjusted in a sliding manner; the sliding rods 3-2 are of hollow tubular structures, nuts 3-3 are respectively arranged at opposite ends of the two sliding rods 3-2, the nuts 3-3 are fixedly connected with the corresponding sliding rods 3-2, the directions of internal threads of the two nuts 3-3 are opposite, the two nuts 3-3 are arranged on a lead screw 3-4, external threads on two sides of the middle of the lead screw 3-4 are respectively matched with the internal threads of the corresponding nuts 3-3, and the increase or decrease of the wheel distance when the lead screw 3-4 is rotated is realized; a hand wheel 3-5 is arranged in the middle of the screw rod 3-4, so that the screw rod 3-4 can be conveniently rotated manually; the hand wheel 3-5 is in sliding fit with the opposite end faces of the two slide ways 3-1, so that a limiting effect is achieved, and the lead screw 3-4 is prevented from sliding left and right.

The brakes of the two rear wheels 2 are also easy to install according to the prior art, for example, the two rear wheels 2 are both provided with disc brakes 8, and one end of the outer sides of the two sliding rods 3-2 is respectively provided with a support arm 3-6 which is fixedly connected with the shell of the corresponding disc brake 8; the brake cable is soft and can be lengthened properly.

Preferably, the frame 3, the steering column 4 and the seat 7 are of a folded construction.

Preferably, foot boards 9 are provided on both left and right sides of the vehicle body frame 3.

Preferably, a bearing is arranged between the end faces of the hand wheel 3-5 opposite to the two slide ways 3-1, so that the friction is smaller, and the labor is saved when the screw rod 3-4 is rotated.

Claims

1. A tricycle with an adjustable wheel track comprises a front wheel (1), two rear wheels (2), a frame (3), a steering rod (4), a front fork (5), a handlebar (6) and a saddle (7); the front end of the frame (3) is rotatably connected with a steering rod (4), the lower end of the steering rod (4) is connected with a front wheel (1) through a front fork (5), the upper end of the steering rod (4) is connected with a handlebar (6), and two rear wheels (2) and a saddle (7) are arranged on the rear side of the frame (3); it is characterized in that the front wheel (1) is arranged as an electric driving wheel; two opposite slideways (3-1) are fixedly connected below the frame (3), a sliding rod (3-2) is respectively arranged in the two slideways (3-1), and the sliding rod (3-2) is only connected with the corresponding slideway (3-1) in a sliding way along the axial direction; the wheel shafts of the two rear wheels (2) are respectively and fixedly connected with one end of the outer side of one sliding rod (3-2); the sliding rods (3-2) are of hollow tubular structures, nuts (3-3) are respectively arranged at the opposite ends of the two sliding rods (3-2), the nuts (3-3) are fixedly connected with the corresponding sliding rods (3-2), the directions of internal threads of the two nuts (3-3) are opposite, the two nuts (3-3) are arranged on a lead screw (3-4), and external threads on the two sides of the middle of the lead screw (3-4) are respectively matched with the internal threads of the corresponding nuts (3-3); a hand wheel (3-5) is arranged in the middle of the screw rod (3-4); the hand wheel (3-5) is in sliding fit with the opposite end surfaces of the two slide ways (3-1).

2. The tricycle with adjustable wheel track according to claim 1, characterized in that the two rear wheels (2) are provided with disc brakes (8), and one end of each of the two sliding rods (3-2) is provided with a support arm (3-6) fixedly connected with the outer shell of the corresponding disc brake (8).

3. The tricycle with adjustable track according to claim 1, characterised in that the frame (3), the steering rod (4) and the saddle (7) are of a folded structure.