Portable device for closing door, has specific portion that is pushed under the door in a flat initial condition and connected with extension of another specific portion to prevent open of the door

摘要

The portable device has specific portion (1a) that is pushed under the door (5) in a flat initial condition and connected with extension of another specific portion to prevent open of the door. The rigid section (2) is provided at door side for locking of door. The specific portion is provided on the opposite side of the door to convert hydraulic volume by feeding of hydraulic volume into wedge (1b).