Infrared induction writing pen capable of protecting electronic whiteboard

The utility model discloses an infrared induction writing pen capable of protecting an electronic whiteboard, and belongs to the technical field of writing pens. Comprising a pen body, a charging port is formed in the top of the pen body, a pen point is connected to the bottom of the pen body, an annular groove is formed in the lower end of the outer ring face of the pen body, a pen cap is installed at the bottom of the pen body, a plurality of brushes are fixedly installed on the inner ring face of the pen cap, a connecting mechanism is connected between the pen cap and the pen body, and a collecting box is connected to the bottom of the pen cap. By means of the connecting mechanism, dust particles on the pen point can be cleaned before the device is used, and therefore the situation that the surface of the electronic whiteboard is damaged when the pen point moves on the surface of the electronic whiteboard can be effectively prevented. 本实用新型公开了一种可保护电子白板的红外感应书写笔，属于书写笔技术领域。包括笔体，所述笔体顶部开设有充电口，所述笔体底部连接有笔头，所述笔体外环