Title:
DUAL-PURPOSE FOLDING TROLLEY
Document Type and Number:
WIPO Patent Application WO/2020/093416
Kind Code:
A1
Abstract:
A dual-purpose folding trolley, comprising a handle (1). The lower end of either side of the handle (1) is inserted with a lower connecting sleeve (4), and the lower connecting sleeve (4) is mounted at a bent part of the lower end of the handle (1); a locking pipe (6) is inserted onto the inner side of the lower connecting sleeve (4); the locking pipe (6) is further sleeved with two switches (2); a locking rod (3) is arranged inside the locking pipe (6); the locking rod (3) is sleeved with a first spring (5); the outer side of the lower connecting sleeve (4) is connected to a fixed connecting block (10); the fixed connecting block (10) is rotatably connected to a movable caster (9) by means of a short connecting pipe (7); the short connecting pipe (7) is further sleeved with a first torsional spring (11); an upper transverse pipe (8) is arranged at the lower end of the handle (1) and on the lower side of the locking pipe (6); the middle of the upper transverse pipe (8) is sleeved with an upper transverse pipe sleeve (12); the middle of the lower end of the upper transverse pipe sleeve (8) is connected to an upper connecting pipe (13); a lower bent pipe (17) is further inserted into the lower end of the fixed connecting block (10).
Inventors:
JIAN SHIKUN (CN)
Application Number:
PCT/CN2018/114982
Publication Date:
May 14, 2020
Filing Date:
November 12, 2018
Export Citation:
Assignee:
GUANGDONG SHUNHE IND CO LTD (CN)
International Classes:
B62B3/02; B62B5/00; B62B5/06
Foreign References:
| CN201362272Y | 2009-12-16 | |||
| US9637149B1 | 2017-05-02 | |||
| US4974871A | 1990-12-04 | |||
| CN201099264Y | 2008-08-13 | |||
| CN101342915A | 2009-01-14 |
Other References:
See also references of EP 3680145A4
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