Title:
HEIGHT ADJUSTABLE WRITING BOARD
Document Type and Number:
WIPO Patent Application WO/2019/080250
Kind Code:
A1
Abstract:
A height adjustable writing board, comprising writing board supports (A), writing board fixing tubes (1) being provided on the left and right sides of the writing board supports (A), and a beam (2) being fixed between the writing board fixing tubes (1); the writing board fixing tubes (1) extend downward to form fixing feet (4), a lower end of the fixing feet (4) being connected to wheels (5), and a fixing beam (3) and a reinforcing stabilizing beam (31) being fixed between the fixing feet (4); an inner side of the writing board fixing tubes (1) is symmetrically provided with writing board sliding grooves (10), a writing board (9) being mounted between the writing board sliding grooves (10); a fixed pulley (6) is fixedly mounted at the middle of the beam (2); a hand crank (8) having a steel wire (7) is fixedly mounted at the middle of the fixing beam (3), and an end of the steel wire (7) is fixedly connected to the interior of the hand crank (8), while another end of the steel wire (7) is wound on the fixed pulley (6) and is fixedly connected to a rear side bottom edge of the writing board (9); the writing board structure has a novel structure, is convenient to control and has a wide range of applications.
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Inventors:
YE YONGHUA (CN)
Application Number:
PCT/CN2017/113277
Publication Date:
May 02, 2019
Filing Date:
November 28, 2017
Export Citation:
Assignee:
YE YONGHUA (CN)
International Classes:
B43L1/02; A47B97/04; B43L1/04
Foreign References:
| CN201405628Y | 2010-02-17 | |||
| CN204480492U | 2015-07-15 | |||
| JP2000118967A | 2000-04-25 | |||
| CN103722953A | 2014-04-16 | |||
| CN2367473Y | 2000-03-08 | |||
| DE29912169U1 | 2000-01-13 | |||
| CN202413109U | 2012-09-05 |
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