The utility model relates to intelligent
whiteboard pen technical field, concretely is a double -end
interactive whiteboard pen, including pen holder, hanging rod, contact and protection device, hanging rod and pen holder fixed connection, contact is fixed at one end of pen holder, and contact has two, two contacts are arranged at the both ends of pen holder respectively, and the protection device sets up on the surface of pen holder, and the protection device includes
assembly sleeve, and
assembly sleeve and pen holder fixed connection, and the surface rotationally connected of
assembly sleeve has torsion bar, the utility model, can when not using double -end
whiteboard pen, the contact is shielded with the aid of the elastic force of
torsion spring drive pressure bar and cylinder, reduces the contact to
expose directly and be stained dust, chalk dust or be caused by tea water splashing and be damped oxidation, prevents the contact from being impacted deformation, abrasion when the pen body falls simultaneously, effectively reduces the contact to contact bad problem, guarantees the key
signal stable transmission and electromagnetic wave launch device normal work, prolongs the service life of contact, also need not frequent disassembly maintenance.