| 摘要 |
The present invention relates to a locking-unlocking structure. When a filter cartridge, replaced in a water purification system, or various objects (elevated bodies) needed to be elevated (an opposite concept of ascent and descent) are elevated by repeatedly pushing the same, the elevated body can be elevated in the right direction by only pushing the elevated body repeatedly as a stop function in a state that the elevated body has been elevated and a descending function by release in a state that the elevated body is stopped are repeatedly performed. A user can audibly recognize a decent completion state. The locking-unlocking structure can be implemented by only changing a structure without using an additional component. When an elevated plate having a stop protrusion, which is mounted on an stop groove of an operation guiding unit formed in the shape of a plate or moves between an elevation line and a descent line, and is elevated; an elastic piece is arranged on the descent line and a guide protrusion, which is gradually elevated to a front end portion of the elastic piece, is arranged to make the stop protrusion elevated along the elevation line during the elevation and to make the stop protrusion elastically operate during the decent to the decent line to make the decent easy. The locking-unlocking structure enables the user to audibly check completion of the descent by generating pleasant sound as the stop protrusion, sliding and descending along a guide protrusion of the elastic piece, escapes from the guide protrusion and then collides with the elevation plate to be attached to the stop protrusion. |
