CN201254247Y - Multifunctional foldable bicycle - Google Patents

Abstract

The utility model relates to a multifunctional folding bicycle which can be used as a small trailer when the bicycle is not in use, which includes a handlebar, a stool, a front wheel of a seat, a rear wheel and a frame connecting two wheels and a cross bar, on which a transmission mechanism for driving the front wheel is installed, and the cross bar in the bicycle frame is composed of two short cross bars and a U-shaped ferrule, and one end of the two short rods is connected with the U-shaped ferrule respectively. It is hinged and forms a foldable horizontal bar, and the other ends of the two short bars are respectively hinged and foldable with the front axle and the rear axle of the vehicle frame through U-shaped hinge sleeves. Advantages: First, the bicycle can be folded up and ride it to work. After it is fully folded, it can be easily taken back to the office, reducing the risk of the car being stolen; second, the bicycle can be used as a small trailer after being folded, which brings convenience to daily life; Third, the structural design is novel, unique, simple and practical.

Description

multifunctional folding bicycle

technical field

The utility model relates to a multifunctional folding bicycle which can be used as a small trailer when the bicycle is not in use, and belongs to the field of bicycle manufacturing.

Background technique

In recent years, with the increase of urbanization and urban population, parking space has become very limited; foldable bicycles are urban transportation tools designed for young people, benefiting from the popularity of carbon fiber materials and their simple and ingenious mechanical structure , making it easier to unfold and fold, which greatly facilitates the user's portability and application. When riding it to work, it can be easily brought back to the office after being fully folded. However, the existing collapsible bicycles on the market can only be put aside after being folded, and have no other functions, and because the collapsible bicycles are convenient for folding and carrying, many unnecessary parts are omitted, especially the car basket is saved. Without the basket, foldable bicycles cannot carry a lot of things, which brings a lot of inconvenience to daily life.

Contents of the invention

Design purpose: to avoid the deficiencies in the background technology, and to design a multifunctional folding bicycle that can be folded up and used as a small trailer when not in use.

Design scheme: In order to achieve the above purpose. 1. The crossbar of the bicycle frame is provided with a folding part that allows the crossbar to be folded vertically upwards. The connecting parts of the two ends of the crossbar and the frame are respectively provided with rotating shafts. The frame and the rear wheel support frame are connected by the design of the rotating shaft. It is one of the technical characterictics of the utility model. The purpose of doing like this is: one is that the cross bar of the vehicle frame is provided with the folding part that can make the cross bar vertically upwards folded, and the joints of the two ends of the cross bar and the vehicle frame are respectively provided with rotating shafts, so that the cross bar can be vertically forward Rotate to achieve the purpose of folding; the second is that the frame and the rear wheel support frame are connected by a rotating shaft, which can make the entire rear wheel support frame and the rear wheel rotate 90 degrees around the rotating shaft. Through the combination of one and two, the whole car can be Folds down into a small trailer. 2, transmission belt connects the transmission wheel of driving wheel and the transmission wheel of connecting pedal, connects the transmission wheel of driving wheel and is installed on the driven wheel, and the above parts form the design of the transmission mechanism of bicycle, which is two of technical characterictic of the present utility model. The purpose of doing like this is: the simplification of the wheel transmission system not only reduces the weight, but also makes the folding more convenient without affecting the use of the bicycle, which brings convenience to life. 3, the junction of the vehicle frame and the front wheel and the rear wheel support frame is provided with telescopic parts, which is three of the technical characterictics of the present utility model. The purpose of doing like this is: the telescoping of vehicle frame reduces the volume of the bicycle after folding, and is convenient to carry.

Technical solution: a multifunctional folding bicycle, which includes a handlebar and a stool, a front wheel of a vehicle seat, a rear wheel and a frame connecting two wheels and a crossbar, on which a transmission mechanism for driving the front wheels is installed, and the bicycle The crossbar in the frame is composed of two short crossbars and U-shaped ferrules. One end of the two short rods is respectively hinged with the U-shaped ferrule to form a foldable crossbar. The other ends of the two short rods are respectively hinged through U-shaped The front axle and the rear axle of cover and vehicle frame are hinged and foldable.

Compared with the background technology, the utility model can fold the bicycle and ride it to work, and can easily take it back to the office after being completely folded, reducing the risk of the car being stolen; second, the bicycle can be used as a small trailer after being folded, Bring convenience to daily life; third, the structural design is novel, unique, simple and practical.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of a multifunctional folding bicycle.

Fig. 2 is a structural schematic diagram of a transmission mechanism of a multifunctional folding bicycle.

Detailed ways:

Embodiment 1: with reference to Fig. 1, multifunctional foldable bicycle, it comprises handlebar 2 and car stool 3, vehicle seat front wheel 5, rear wheel 10 and connects two wheel vehicle frame 1 and cross bar, and it is installed with driving front The transmission mechanism 6 of the wheel 5, the crossbar 8 in the bicycle frame 1 is composed of two short crossbars and a U-shaped ferrule, and one end of the two short rods is respectively hinged with the U-shaped ferrule and forms a foldable crossbar 8 , the other ends of the two short rods are respectively hinged and foldable with the front axle and the rear axle 12 of the vehicle frame 1 through the U-shaped articulated sleeves 7 and 9 . Two ends of the cross bar 8 are respectively provided with rotating shafts 12 at the joints of the vehicle frame 1, so that the cross bar 8 can be rotated vertically forward. The joints between the two ends of the cross bar 8 and the vehicle frame 1 are respectively provided with rotating shafts 12, and the vehicle frame 1 and the rear wheel support frame 10 are connected by the rotating shaft 12, so that the entire rear wheel support frame 10 and the rear wheels can be rotated 90 degrees around the rotating shaft 12. Degree, that is to say, cross bar 8 is folded forward, and the rotating shaft 19 of the wheel that vehicle frame 1 is connected rotates 90 degrees along the center line and is folded into a small trailer. Front-wheel drive mechanism 6 is prior art, does not describe here. The bicycle frame mainly adopts carbon fiber material. The production of all above-mentioned parts is the prior art, so it will not be described here.

It should be understood that although the above-mentioned embodiments have described the utility model in more detail, these text descriptions are only a simple description of the design idea of the utility model, rather than restrictions on the design idea of the utility model. The combination, addition or modification of the design idea of the utility model all fall within the protection scope of the utility model.

Claims (3)

1. A multifunctional folding bicycle, which includes a handlebar, a stool, a front wheel of a seat, a rear wheel, and a frame connecting two wheels and a crossbar, on which a transmission mechanism for driving the front wheels is installed, and is characterized in that: The cross bar in the bicycle frame is composed of two short cross bars and a U-shaped ferrule, one end of the two short bars is respectively hinged with the U-shaped ferrule and forms a foldable cross bar, and the other end of the two short bars The front axle and the rear axle of the vehicle frame are respectively hinged and foldable through U-shaped hinge sleeves. 2. The multifunctional folding bicycle according to claim 1, characterized in that: the crossbar is folded forward, and the rotating shaft of the wheel connected to the frame is rotated 90 degrees along the center line as a vertical line and folded into a small trailer. 3. The multifunctional foldable bicycle according to claim 1, characterized in that telescopic parts are provided at the joints between the frame and the front wheel and rear wheel support frame.

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