Title:
EXTENDABLE PACKAGING BOX FOR MASK
Document Type and Number:
WIPO Patent Application WO/2022/021546
Kind Code:
A1
Abstract:
An extendable packaging box for a mask comprises a main body (100). The main body (100) comprises a bottom box (01) and a top box (02). The top box (02) has an area smaller than an area of the bottom box (01). At least one set of flexible strips (03, 04, 05, 06) is arranged at two opposite inner sides of the top box (02). The respective ends of the flexible strips (03, 04, 05, 06) are connected to the inner sides of the top box (02), and the respective other ends thereof are connected to inner sides of the bottom box (01). The length of the flexible strip (03, 04, 05, 06) is less than the total height of the top box (02) and the bottom box (01). The width of the flexible strip (03, 04, 05, 06) is less than the width of a side of the packaging box. The top box (02) is slidably connected to the inner sides of the bottom box (01) by means of the flexible strips (03, 04, 05, 06). The top box (02) is arranged inside the bottom box (01). An outer edge of the top box (02) is located 0.1 mm to 2 mm from an inner edge of the bottom box (01).
Inventors:
WU YUANTIAO (CN)
Application Number:
PCT/CN2020/114343
Publication Date:
February 03, 2022
Filing Date:
September 10, 2020
Export Citation:
Assignee:
WU YUANTIAO (CN)
International Classes:
B65D5/355; B65D21/08; B65D6/00; B65D25/00
Foreign References:
| CN2620685Y | 2004-06-16 | |||
| JP2010254311A | 2010-11-11 | |||
| CN207737679U | 2018-08-17 | |||
| JPH0811865A | 1996-01-16 |
Attorney, Agent or Firm:
SHENZHEN SHUN LI INTELLECTUAL PROPERTY FIRM (CN)
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