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Folding device

A technology of folding device and hollow shaft, which is applied to foldable bicycles, transportation and packaging, motor vehicles, etc., can solve the problems of slow folding speed, inconvenient folding operation, complex structure, etc., and achieve strong versatility and high speed And the effect of convenient performance and simple structure

Inactive Publication Date: 2009-11-04
刘君
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It brings convenience to people's travel, but also has a little regret, because the folding devices of the existing folding bikes generally have the disadvantages of inconvenient folding operation and slow folding speed.
For example, the folding mechanism shown in the utility model whose authorization announcement number is CN 2712782 and authorization announcement number is CN 2686994Y needs to slide the hinge shaft when folding and unfolding, and the hinge shaft is equipped with a quick release locking mechanism. The structure is slightly complicated, and the operation steps are increased, which makes the folding and unfolding of the folding device slower (it takes about 3 to 5 seconds), and the operation is not very convenient, especially when the above folding device is used for folding bicycles, folding mopeds or folding bicycles. The versatility is not strong in folding vehicles such as scooters

Method used

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Experimental program
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Effect test

Embodiment 1

[0021] Such as Figure 1 to Figure 5 As shown, this embodiment describes a folding device in which the pin guide tube is set in the hollow shaft, and the pin hole is set on the hollow shaft sleeve, which includes a front frame 1 and a rear frame 2 In this embodiment, the front frame 1 and the rear frame 2 both refer to a hollow cuboid folding frame, and the front section of the rear frame 2 is an arc-shaped rod.

[0022] The present invention is characterized in that it also includes a hollow shaft sleeve 3 and a hollow shaft 5 that is rotatably fitted in the hollow shaft sleeve 3 and whose two ends extend outside the two ends of the hollow shaft sleeve 3, the outer circumferential surface of the hollow shaft sleeve 3 or the two end and the concave arc welding of the front end of the rear frame 2; And there is a gap between the front frame 1 and the outer peripheral surface of the hollow shaft sleeve 3 . A locking device capable of locking or releasing the relative circumfer...

Embodiment 2

[0030] Such as Figure 7 ~ Figure 11 As shown, what is described in this embodiment is a folding device in which the pin guide tube is set on the hollow shaft sleeve, and the pin hole is set on the hollow shaft. The same thing as Embodiment 1 is that it also includes a front frame 1 , a rear frame 2 , a hollow shaft 5 and a hollow shaft sleeve 3 . The difference from Embodiment 1 is that the folding device in this embodiment is that the front frame 1 is connected to the hollow shaft sleeve 3, the rear frame 2 is connected to both ends of the hollow shaft 5, and the pin guide tube 25 is arranged on the hollow shaft sleeve 3. , The pin hole 24 is located on the hollow shaft 5 .

[0031] see Figure 8 ~ Figure 10 As shown, the hollow shaft 5 can be rotatably fitted in the hollow shaft sleeve 3, and the two ends of the hollow shaft 5 extend outside the two ends of the hollow shaft sleeve 3, and the outer circumferential surface or two ends of the hollow shaft sleeve 3 are in con...

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PUM

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Abstract

The invention discloses a folding device for folding bicycles and other folding vehicles, which comprises a front frame (1) and a rear frame (2), and also includes a hollow shaft sleeve (3) and a hollow shaft sleeve (3) which is rotatably fitted ), the hollow shaft sleeve (3) is connected with the rear frame (2) or the front frame (1), and the two ends of the hollow shaft (5) are connected with the front frame (1) or the rear frame (2) A locking device capable of locking or releasing the relative circumferential position between the hollow shaft (5) and the hollow shaft sleeve (3) is provided in the hollow shaft (5) and on the hollow shaft sleeve (3). The folding device has the advantages of simple structure, rapid folding and unfolding process, simple operation and strong versatility in folding carts.

Description

technical field [0001] The invention relates to a folding vehicle device for folding bicycles, folding bicycles or folding scooter and other folding vehicles. Background technique [0002] With the sharp rise of global energy prices and the aggravation of environmental pollution, people pay more and more attention to energy-saving, environmentally friendly and fitness vehicles. In recent years, various folding vehicles such as folding bicycles and folding assistants have brought convenience to people's fitness and travel Motor vehicles, folding scooters, etc. are becoming more and more popular. While it brings convenience to people's travel, it also has a little regret, because the folding devices of the existing folding bicycles generally have the disadvantages of inconvenient folding operation and slow folding speed. For example, the folding mechanism shown in the utility model whose authorization announcement number is CN 2712782 and authorization announcement number is ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B62K15/00F16C11/10
Inventor 刘君
Owner 刘君
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