本申请公开了一种线控排水开关，涉及智能马桶的技术领域，包括拉绳和连接件，所述拉绳的两端分别与所述连接件以及排水阀连接，还包括保护管件，所述保护管件套设安装于所述拉绳外；所述保护管件包括两个连接组件以及多个具有弹性的软管；多个所述软管首尾相连形成一体的管段，且所述软管内侧空间的尺寸大于所述拉绳的尺寸；两所述连接组件分别位于管段的两端且分别与位于端部的两个所述软管连接，且两所述连接组件分别与所述连接件以及所述排水阀连接。本申请能够有效保证拉绳长期使用的质量，从而能够有效保证自身长期使用的稳定性。

The invention discloses a drive-by-wire drainage switch, and relates to the technical field of intelligent closestools, the drive-by-wire drainage switch comprises a pull rope and a connecting piece, the two ends of the pull rope are connected with the connecting piece and a drainage valve respectively, the drive-by-wire drainage switch further comprises a protection pipe fitting, and the protection pipe fitting is installed outside the pull rope in a sleeving mode; the protection pipe fitting comprises two connecting assemblies and a plurality of flexible pipes with elasticity. The multiple hoses are connected end to end to form an integrated pipe section, and the size of the inner side space of each hose is larger than that of the pull rope. The two connecting assemblies are located at the two ends of the pipe section correspondingly and connected with the two hoses located at the ends correspondingly, and the two connecting assemblies are connected with the connecting piece and the drainage valve correspondingly. The long-term use quality of the pull rope can be effectively guaranteed, and therefore the long-term use stability of the pull rope can be effectively guaranteed.