Rear frame assembly for foldable trailer with rotatable rear baffle
A technology of rear wheel assembly and rear frame, which is applied in the field of trailers and can solve the problems of low bearing strength
Inactive Publication Date: 2016-04-13
胡小青
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[0005] 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
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Embodiment 1）
[0031] This embodiment is a rear frame assembly for a collapsible trailer, see Figure 1 to Figure 5 As shown, the rear frame assembly 2 includes a rear carrier 21, two rear wheel assemblies 22, a tailgate 23 arranged at the rear end of the rear carrier, and two rear baffles for connecting the rear carrier and the rear carrier. Connector 24; the left and right sides of the rear end of the rear carrier are each provided with a rearwardly protruding rear sliding column 211, each rear sliding column is provided with an annular rear limit block 212, and the rear of each rear limit block The end is provided with a plurality of rear limit tooth grooves 213; the rear end of each rear sliding column is provided with a rear pin hole 214; The connecting surface 243 and the rear arc-shaped transition surface 244 connecting the folded abutment surface and the rear unfolded abutment surface; each connecting piece and a corresponding rear sliding column pass through the pin shaft passing th...
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The invention discloses a rear frame assembly for a foldable trailer with a rotatable rear baffle. The rear frame assembly comprises a rear object loading frame, rear wheel assemblies, a rear baffle and connecting fittings, wherein a first pivot hole, a rear furled abutting surface, a rear unfolded abutting surface and a rear curved transitional surface are arranged at the front end of each of the connecting fittings; the distance between the central axis of each first pivot hole and each rear unfolded abutting surface is greater than that between the central axis of each first pivot hole and each rear furled abutting surface; a second pivot hole, a furled carrying surface and an unfolded carrying surface are arranged at the rear end of each of the connecting fittings, rear connecting bosses are arranged on the rear baffle, and rear shaft holes and carrying convex plates are arranged on the rear connecting bosses; in the rotating process, the carrying convex plates can be in butted connection to the furled carrying surfaces and the unfolded carrying surfaces of the connecting fittings, so as to drive the connecting fittings to rotate. The rear frame assembly disclosed by the invention not only can be matched with a front frame assembly for use, so as to form a four-wheel foldable trailer in a combination manner, but also can be used separately to be used as a rear frame assembly for a two-wheel foldable trailer and used for the four-wheel foldable trailer.
Description
[0001] This application is a divisional application of an invention patent application with an application date of "August 27, 2013", an application number of "2013103784054", and a title of "rear frame assembly for a foldable trailer". technical field [0002] The invention relates to the technical field of trailers, in particular to a rear frame assembly for a foldable trailer with a rotatable tailgate. Background technique [0003] 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. [0004] 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-...
Claims
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IPC IPC(8): B62B1/20B62B3/02
CPCB62B1/04B62B1/20B62B3/02
Inventor 不公告发明人
Owner 胡小青