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Folding trailer

A folding and trailer technology, applied in the field of trailers, can solve problems such as low bearing 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 connecting piece for a collapsible trailer, see figure 1 with figure 2 As shown, the front end of the connecting member 24 is provided with a first pivot hole 241, a rear collapsed abutment surface 242, a rear expansion abutment surface 243, and a rear arc transition surface connecting the collapsed abutment surface and the rear expansion abutment surface. 244; the rear collapsed abutment surface is located on the rear expanded abutment surface and perpendicular to the rear collapsed abutment surface; the distance between the central axis of the first pivot hole and the rear expanded abutment surface is greater than the central axis and the rear collapsed abutment surface The rear end of the connecting piece is provided with a second pivot hole 245, a retracted bearing surface 246, and a deployed bearing surface 247. The retracted bearing surface and the deployed bearing surface are located below the second pivot hole and are folded The bearing surfa...

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PUM

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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 collapsible trailer. Background technique [0002] People often use four-wheeled trailers when shopping and carrying items, which can save users' effort. However, the current four-wheeled trailers are generally large in size, cannot be folded and packed, inconvenient to carry, and take up a lot of space during storage. [0003] Patent document CN202186404U discloses a foldable luggage cart. The cart includes a telescopic frame. The lower part is provided with a cylindrical push-pull rod hinged to the carrying floor of the luggage cart. 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 spiral guide surface; the load-bearing bottom plate is folded to fit the frame, and it is arranged perpendicular to the frame after unfolding, and is used to carry luggage; The vertical t...

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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