Multi-interface device of negative pressure machine for wound cleaning

The utility model provides a multi-interface device of a negative pressure machine for wound cleaning, which comprises a main interface formed by pipelines and at least three branch outlets formed by pipelines, and the tail end of the main interface is provided with a first thread and is connected with the negative pressure machine in a screwing manner; the branch outlets and the main connector are connected in a sealed mode, each branch outlet is provided with an opening and closing switch capable of enabling the branch outlet to be communicated or closed, a second thread is arranged at the tail end of each branch outlet, the size of the main connector is consistent with that of the tail end of each branch outlet, the first thread and the second thread can be meshed with each other, and the main connector is connected with a negative pressure machine. A plurality of branch outlets can be divided, if existing branch outlets are still insufficient to meet the requirement for the number of wounds of on-site nur