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Folded tricycle and punching pipe coiling element thereof

A technology for stamping rolls and tricycles, which is applied in the field of transportation, can solve the problems of seldom edge-rolling and rolling tubes, etc., and achieves the effects of simple production, simple folding and folding, and good quality.

Inactive Publication Date: 2016-06-08
彭加桂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, there are very few stampings that curl the tube along the edge
The frames of bicycles and electric vehicles are mostly welded pipes and profiles, and there are not many stamping parts, let alone stamping parts that are rolled along the edges.

Method used

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  • Folded tricycle and punching pipe coiling element thereof
  • Folded tricycle and punching pipe coiling element thereof
  • Folded tricycle and punching pipe coiling element thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Such as figure 1 , figure 2 , image 3 , Figure 4 Shown, be a kind of folding tricycle that is formed with triangle.

[0024] Its structure is like this: an elongated seat plate 3, the front end of seat plate 3 is movably linked to each other with the upper end of a diagonal upright bar 18 of a forward slanting brace. From the joint forward, the front end of the seat plate 3 also extends along the slanting upright bar 18 , and stretches out a section of the seat plate head 7 overlapping with the slanting upright bar 18 and pressed on the slanting upright bar 18 forward and downward. Straight seat board 3 and inclined upright bar 18 have just constituted an inwardly bent like this, the obtuse angle activity structure that can not turn outwards. Seat plate 3 rear ends link to each other with left and right rear wheels 1 respectively again by seesaw 20, left and right ball head shaft 17, left and right damping springs 2, left and right flat forks 14 again. T...

Embodiment 2

[0026] Such as Figure 5 - Figure 10 Shown are the cross-sections of several curling tubes picture .

[0027] The so-called stamped rolled pipe parts: use the stamping method and the rolled pipe die to roll out the edge of the stamped part like a pipe, which can increase the strength of the other part or fit the round edge and round pipe.

[0028] The coiled tube can be rolled along the geometric shape of the stamping part; it can be rolled according to the direction of strength, and tube shapes 23 and 24 with different sizes at both ends can be rolled out; tube shapes 21, 22 and tubes with different sizes at both ends can also be rolled out Double bobbin tubes 25, 26 of the same size on both sides; can be rolled into profiles 29, 30; two stamping parts can roll out the inner and outer sheathing pipes 27, 28 together, and the sheathing pipes can be rolled into tightly wrapped Tight fit, can also roll out a sliding fit that can slide relatively; between the tubes and t...

Embodiment 3

[0030] Such as Figure 11 , Figure 12 , Figure 13 Shown is the front of a package assembly, steering hinge, steering stem and fork. The steering rod 10 and the front fork 12 that can relatively slide up and down and shock absorption are a pair of rolled tube structures with inner and outer sheaths. The outer steering rod 10 is rolled with a pair of sliding sleeves 32 that can be guided and a hinge tube 31 that can turn left and right. The front fork 12 of the inner package is rolled with a pair of sliding sleeves 33 that can be guided. The middle package is a damping spring 34 .

[0031] Rotation such as aforementioned steering rod 10, front fork 12, hinge 31 and in the sliding parts, can make slide bearing with good lubricating properties such as polytetrafluoroethylene.

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PUM

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Abstract

The invention discloses a folded tricycle and a punching pipe coiling element thereof. A triangular structure which can be folded and a tricycle frame are combined to form a tricycle which can be folded and furled. The tricycle can lean and swing left and right like a two-wheel cycle, the center of gravity is adjusted, and the tricycle can keep balanced and stable. The punching pipe coiling element is characterized in that the rims of punching elements are coiled to form round edges and round pipes, which can enhance the strength of parts and can be mutually nested like pipe materials, by a punching method and through a pipe coiling mold.

Description

Technical field: [0001] The invention relates to a vehicle, which is a tricycle made of a folded triangular structure. Background technique: [0002] Existing bicycles, electric vehicles and motorcycles are all made of front and rear wheels, and the front and rear wheels are all in a straight line. If you don't ride, you can't stand firmly, let alone sit on it without falling down. The tricycle can not fall down, stop steadily, stand upright, and sit on it smoothly. But compared with two-wheel vehicle, three-wheel vehicle also has its deficiency, and it can't tilt and swing left and right like two-wheel vehicle to adjust center of gravity, keep balance and stability. Therefore, it is easy to tip over if you ride too fast and turn too sharply. Two-wheeled vehicles and tricycles have their own strengths, and also have their own shortcomings. If they can learn from each other's strengths, they can be further improved. If they can be folded easily, they can be more convenient ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62K15/00B62K5/06
Inventor 彭加桂
Owner 彭加桂
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