Device for detecting distance between user and computer screen

The utility model relates to a device for detecting a distance between a user and a computer screen. The device is characterized by comprising a shell front cover, a shell rear cover, a clamping board, a circuit board and a USB (Universal Serial Bus) plug, wherein the shell front cover and the shell rear cover form a hollow shell; the rotatable clamping board is arranged on the outer wall of the shell, so that a product is placed on a computer; the circuit board is arranged in the shell; an infrared distance measuring system circuit is arranged on the circuit board; the shell is provided with an infrared emitting window and an infrared receiving window; the infrared emitting window is used for emitting infrared ray; the infrared receiving window is used for entering infrared ray; and the USB plug is connected to the circuit board through a connecting line and is used for connecting a USB jack on the computer. The device has the advantages of simple, compact and rational structure, convenience in use and capab