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Folding trailer

A folding and trailer technology, applied in the field of trailers, can solve the problem of small load capacity

Inactive Publication Date: 2016-11-09
管伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] This patent document describes in detail the mechanism and working principle of the foldable wheel, but this kind of foldable luggage cart is a push-pull cart with only two wheels and has a small carrying capacity, so it cannot be widely used in factory workshops

Method used

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Examples

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Embodiment 1）

[0030] This embodiment is a connector for a collapsible trailer, see figure 1 and figure 2 As shown, the front end of the connector 24 is provided with a first pivot hole 241, a rear folded abutment surface 242, a rear unfolded abutment surface 243, and a rear arc-shaped transition surface connecting the rear folded abutment surface and the rear unfolded abutment surface 244; the rear stowed abutment surface is located above the rear unfolded abutment surface and is perpendicular to the rear stowed abutment surface; the distance between the central axis of the first pivot hole and the rear unfolded abutment surface is greater than the distance between the central axis and the rear stowed abutment surface distance; the rear end of the connector is provided with a second pivot hole 245, a folded force-bearing surface 246, and an expanded force-bearing surface 247, the folded force-bearing surface and the expanded force-bearing surface are located below the second pivoted hole, ...

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Abstract

The invention discloses a folding trailer. The folding trailer comprises a front frame assembly, a rear frame assembly and a connection mechanism for connecting the front frame assembly with the rear frame assembly. The rear frame assembly comprises a rear loading frame, two rear wheel assemblies, a rear baffle arranged at the rear end of the rear loading frame and two connection pieces for connecting the rear baffle with the rear loading frame. The front end of each connection piece is provided with first pivot holes, rear folding abutting surfaces, rear unfolding abutting surfaces and rear arc-shaped transition surfaces; the rear folding abutting surfaces are located over the rear unfolding abutting surfaces and perpendicular to the rear unfolding abutting surfaces; and the distance between the center axis of the first pivot holes and the rear unfolding abutting surfaces is larger than the distance between the center axis and the rear folding abutting surfaces. The rear end of each connection piece is provided with a second pivot hole, a folding force bearing surface and an unfolding force bearing surface; the folding force bearing surface and the unfolding force bearing surface are located below the second pivot hole; and the unfolding force bearing surface is located on the side, close to the corresponding first pivot holes, of the second pivot hole. The folding trailer is reasonable and compact in structure.

Description

technical field [0001] The invention relates to the technical field of trailers, in particular to a foldable trailer. Background technique [0002] People often use four-wheel trailers when shopping and carrying items, which can save energy for users. However, four-wheel trailers are generally large in size at present, cannot be folded and folded, are inconvenient to carry, and take up a lot of space when stored. [0003] Patent document CN202186404U discloses a foldable luggage cart, which includes a telescopic frame, the lower part of which is provided with a cylindrical push-pull rod hinged to the load-carrying bottom plate of the luggage cart, and the upper part of the cylindrical push-pull rod is provided with a first annular groove , the lower end surface of the first annular groove is provided with a first helical guide surface; the load-bearing bottom plate is folded and attached to the frame, and it is arranged perpendicular to the frame after unfolding for carrying...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B62B3/02
CPCB62B3/02B62B5/00B62B2205/00B62B2205/006B62B2205/02B62B2205/12B62B2205/32
Inventor 不公告发明人
Owner 管伟
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