| 摘要 |
An automatic opening and shutting device of the toilet seat is provided, in which a pivot member combined with a piston member performs a cylinder movement inside the main body. An automatic opening and shutting device of the toilet seat comprises: a main body(10) in which a space(13), a water outlet(11), and a water inlet(12) are formed; a pivot member(20) which is mounted in the internal space of the main body and rotates; a piston member which is integrally formed with the pivot member and in which a valve insertion hole and an auxiliary valve insertion hole are penetration-formed; a valve and an auxiliary valve which are respectively inserted in the valve insertion hole and the auxiliary valve insertion hole; and a coupling unit. |
