Title:
SPECIALISED HOLE-OPENING DEVICE FOR BACK-BOLT DRY-HANGING CURTAIN WALL
Document Type and Number:
WIPO Patent Application WO/2021/027031
Kind Code:
A1
Abstract:
A specialised hole-opening device for a back-bolt dry-hanging curtain wall, comprising a bottom plate (1), and a hole-opening apparatus (2) and a clamping apparatus (3) mounted on the upper end of the bottom plate (1). The hole-opening device can solve the problems of the uneven depths of holes after drilling due to the inability to accurately control drilling depth when drilling existing curtain wall panels and the low efficiency of existing drilling devices causing panel to easily break due to internal stress when drilling, which affects the usage outcome; the present hole-opening device has the advantages of high drilling efficiency, damage not easily occurring when drilling panels, and the depth of holes after drilling being uniform.
Inventors:
ZHAI DONGQING (CN)
Application Number:
PCT/CN2019/107823
Publication Date:
February 18, 2021
Filing Date:
September 25, 2019
Export Citation:
Assignee:
NANJING TANG YI INFORMATION TECH CO LTD (CN)
International Classes:
B28D1/14; B28D7/00; B28D7/04
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Attorney, Agent or Firm:
NANJING RUIZHIBO INTELLECTUAL PROPERTY AGENCY CO., LTD. (CN)
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