Title:
LIFTING STRUCTURE OF DENTAL CHAIR
Document Type and Number:
WIPO Patent Application WO/2023/155293
Kind Code:
A1
Abstract:
A lifting structure of a dental chair, the lifting structure comprising: a lifting column base (100), the lifting column base (100) being placed on a flat surface; a dental chair attachment hanger (200), the dental chair attachment hanger (200) being movably mounted in the lifting column base (100) and capable of sliding vertically in the a height direction of the lifting column base (100); and a hanger lifting mechanism (300), the hanger lifting mechanism (300) being mounted on the lifting column base (100), and a lifting end of the hanger lifting mechanism (300) being fixedly connected to the dental chair attachment hanger (200) for driving the dental chair attachment hanger (200) to stably ascend and descend, wherein the hanger lifting mechanism (300) comprises a lifting operation base (310), a lifting traction unit (320) and a lifting driving unit (330); a first end of the lifting traction unit (320) is fixedly connected to the lifting operation base (310), and a second end thereof sequentially winds around the lifting operation base (310) and the lifting column base (100) to be fixedly connected to the dental chair attachment hanger (200); a winding point of the lifting traction unit (320) and the lifting column base (100) is slidably connected to the lifting operation base (310) to form a traction adjustment point (322); and the lifting driving unit (330) is adjacently arranged on one side of the lifting column base (100) and is coaxial with the lifting operation base (310), and a driving end of the lifting driving unit (330) is connected to the traction adjustment point (322). During operation, the lifting driving unit (330) drives the traction adjustment point (322) to slide vertically in a height direction of the lifting operation base (310), so as to change the ratio of the length from the first end of the lifting traction unit (320) to the traction adjustment point (322) to the length from the second end of the lifting traction unit (320) to the traction adjustment point (322), thereby causing the lifting structure to perform a balanced linear motion at a constant speed.
Inventors:
YANG JIANCHENG (CN)
Application Number:
PCT/CN2022/088896
Publication Date:
August 24, 2023
Filing Date:
April 25, 2022
Export Citation:
Assignee:
YANG JIANCHENG (CN)
International Classes:
A61G15/06
Foreign References:
| CN103156749A | 2013-06-19 | |||
| CN203591353U | 2014-05-14 | |||
| CN216933906U | 2022-07-12 | |||
| CN108143581A | 2018-06-12 | |||
| CN1638712A | 2005-07-13 | |||
| CN201071290Y | 2008-06-11 | |||
| EP0982018A2 | 2000-03-01 | |||
| JPH11322284A | 1999-11-24 | |||
| JPH07299103A | 1995-11-14 |
Attorney, Agent or Firm:
DONGGUAN KEKAIWEICHENG INTELLECTUAL PROPERTY CO. LTD. (CN)
Download PDF: