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Patent Searching and Data

Document Type and Number:
WIPO Patent Application WO/2019/161799
Kind Code:
A step ladder with a handrail, comprising two front legs (10), two back legs (20), at least one step (30), and a handrail (40). The handrail (40) comprises a horizontal tube (42), two vertical tubes (44), and a locking mechanism, the horizontal tube (42) being connected to the top end of the two vertical tubes (44), and the two vertical tubes (44) respectively being movably inserted into the two front legs (10). The locking mechanism comprises a connecting rod (51) arranged in the horizontal tube (42), two push rods (52) respectively arranged in the two vertical tubes (44), two bolts (53), two bolt springs (54), and two push rod springs (55), the push rod springs (55) driving the push rods (52) to move upward and press against the connecting rod (51), a hole being disposed on the horizontal tube (42), and the connecting rod (51) being provided with a button (512) extending along the hole out of the horizontal tube (42); the vertical tubes (44) are provided with a through-hole corresponding to the bolts (53), and the front leg (10) is provided with a plurality of positioning holes corresponding to the bolts (53), the bolt springs (54) driving the bolts (53) to extend along the through-holes out of the vertical tube (44) and into the positioning holes. When in use, pressing the connected rod (51) can simultaneously control the movement of the two push rods (52) to raise and lower the handrail; operation is convenient.

LENG, Luhao (No. 88, Zhennan 3rd Road Tongji Industrial Zone, Tong'an Distric, Xiamen Fujian 0, 361100, CN)
Application Number:
Publication Date:
August 29, 2019
Filing Date:
February 25, 2019
Export Citation:
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NEW-TEC INTEGRATION (XIAMEN) CO., LTD. (No. 88, Zhennan 3rd Road Tongji Industrial Zone, Tong'an Distric, Xiamen Fujian 0, 361100, CN)
International Classes:
Attorney, Agent or Firm:
SHOUCHUANG JUNHE PATENT AGENT CO., LTD. XIAMEN (Room 606, No. 23-3 Wanghai Road, Xiamen Software Park Phase II, Siming Distric, Xiamen Fujian 2, 361012, CN)
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