THREE-IN-ONE CART

WIPO Patent Application WO/2021/047102

A1

Disclosed is a three-in-one cart, comprising a carrying platform (1), wherein an installation rod member (11) is connected to each of two opposite sides of the carrying platform (1); portions, close to two ends, of each installation rod member (11) are each provided with a wheel assembly (2); each wheel assembly (2) comprises a bearing seat (20) fixed below the corresponding installation rod member (11); each bearing seat (20) is connected to a first pin (21); a section of torsional spring (22) is annularly sleeved on each first pin (21); moreover, a wheel seat (23) is connected to each first pin (21), wheels (24) are connected to the wheel seats (23), and under the action of the torsional springs (22), the wheel seats (23) and the wheels (24) are automatically overturned so as to approach the carrying platform (1); and a positioning mechanism (3) for keeping the wheel seats (23) and the wheels (24) in an unfolded state is arranged between the two wheel assemblies (2) located at the same end. By means of structural transformation, the three-in-one cart can provide three usage states with different functions, namely, a platform hand cart, a luggage cart, and a workbench.

SHENG JING (CN)
WANG RONGMIN (CN)
HE ZHANFENG (CN)
LI BAO (CN)
JING YANPENG (CN)
HUANG YONGPING (CN)
PAN PENG (CN)
QIU XIANGJUN (CN)

PCT/CN2019/127541

March 18, 2021

December 23, 2019

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JINHUA YAHU TOOLS CO LTD (CN)

B62B3/02; B62B1/04; B62B5/06

CN109969237A	2019-07-05
CN110576891A	2019-12-17
CN207747928U	2018-08-21
CN208698802U	2019-04-05
CN2292721Y	1998-09-30
US20190111956A1	2019-04-18
US10040466B1	2018-08-07

ZHE JIANG KG IP LAW FIRM (CN)

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