Teaching auxiliary tool

The invention is suitable for the field of teaching auxiliary accessories, and relates to a teaching auxiliary tool which comprises a miniature fan arranged on a first supporting rod; a supporting ring is arranged at the upper end of the first supporting rod and is constructed according to the conto...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
1. Verfasser: SHAN XINMEI
Format: Patent
Sprache:chi ; eng
Schlagworte:
Online-Zugang:Volltext bestellen
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
Beschreibung
Zusammenfassung:The invention is suitable for the field of teaching auxiliary accessories, and relates to a teaching auxiliary tool which comprises a miniature fan arranged on a first supporting rod; a supporting ring is arranged at the upper end of the first supporting rod and is constructed according to the contour of the human face. The interior of the supporting ring is hollow and is communicated with the micro fan; a soft cushion is arranged on the outer ring of the supporting ring, and the support is hinged to one end of an electric push rod through a second pin shaft. The other end of the electric push rod is hinged to the first supporting rod through a third pin shaft. The axis of the third pin shaft, the axis of the second pin shaft and the axis of the first pin shaft are parallel to one another and form an angle-variable triangle. The lower portion of the support is further connected with a waist correcting assembly. A length adjusting assembly is further arranged on the first supporting rod. 本发明适用于教学辅助配件领域,涉及一种教学辅