Public space virus circulation blocking device

The utility model provides a public space virus circulation blocking device which relates to the technical field of disinfection equipment and comprises a first box body, a second box body, a third box body and a timing and quantifying assembly, the second box body is located on the side edge of the first box body, the third box body is arranged above the second box body, and the timing and quantifying assembly is located between the second box body and the third box body. According to the public space virus circulation blocking device, through the arranged timing and quantifying assembly, a second gear can drive a disc to rotate when rotating, when holes in the disc rotate to the position between a liquid outlet pipe and an input pipe, liquid flows into a second box body from a third box body, and therefore disinfectant adding work is achieved; compared with a traditional manual disinfectant adding mode, the device can achieve timed and quantitative adding of the disinfectant. 本实用新型提供公共空间病毒循环阻断装置，涉及消毒设备技术领域，