Folding vehicle frame

Abstract

The invention discloses a folding bicycle frame, comprising a front frame (2), a back frame (3) and a locking device (5) for controlling the variation of included angle between the front frame (2) and the back frame (3), which is characterized in that the rear end of the front frame (2) is hinged with the front end of the back frame (3), the front of the locking device (5) is connected with the front frame (2), the rear end of the locking device (5) is connected with the back frame (3); which folding bicycle frame comprises also lever I (1) and lever II (11); the lever I (1) and the middle part of the lever II (11) are separately hinged with the front frame (2) or the back frame (3) or the hinging part between the front frame and the back frame. The folding bicycle frame has the advantages of simple operation during folding and expanding the frame with immediate speed, compact structure after folding, light weight and convenient carrying.

Description

technical field [0001] The invention relates to a vehicle frame for bicycles, scooter and other vehicles, in particular to a folding vehicle frame for folding vehicles such as folding bicycles and folding scooters. Background technique [0002] In recent years, various folding bicycles, such as folding bicycles and folding scooters, have been favored by more and more people. Before and after changing to the bus or subway, if there is a folding car that can travel short distances, and is small in size after folding, it will bring a lot of convenience to people's travel; People who often lose their cars, and people who carry their bicycles up and down the stairs every day need a small, portable folding bike. But more people can't help but feel a little regretful, because among the various folding bikes that can be selected, it is difficult to find a folding bike that is really compact, easy to carry, and practical. One of the reasons is that the structure of the folding vehi...

AI Technical Summary

Problems solved by technology

But more people can’t help but feel a little regretful, because among the various folding bikes that can be selected, it is difficult to find a folding bike that is really compact, easy to carry, and practical.

One of the reasons is that the structure of the folding vehicle frame of the prior art all has parts such as saddle and large sprocket wheel. Difficulties make the process of folding and unfolding the frame more cumbersome, the folding and unfolding speed is still slow, the structure of the whole vehicle after the frame is folded is still not compact enough, the volume is still large, the weight is still heavy, and it is still inconvenient to carry

[0003] The inventor's patent No. ZL 01237990.5 provides the structure of the driving device of several scooters, which cancels parts such as saddle, large sprocket, large sprocket crank and pedal for scooter and bicycle. A sample car structure is provided, but the frame of the car cannot be folded; the inventor's application number is 200710156429. It uses both feet to step on the pedals to drive the car forward. Because it is different from the traditional rickshaw stepping method, it is a little difficult for people with poor balance and coordination to operate.

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