Patent ID: 8740056

Claim:
A parcel box for receiving and keeping parcels in a theftproof manner, comprising: a box comprising a drawer that is configured to be pulled out and pushed in; and a theft prevention mechanism that prevents unauthorized removal of parcel, wherein the theft prevention mechanism comprises: a platform configured to have parcel disposed thereon, a blocking mechanism that blocks pulling out of the drawer from the box when the parcel is placed on the platform, and an unblocking mechanism for unblocking the drawer, wherein the drawer is swingable about a first pivot axle fixed in the box, wherein the drawer comprises a left side wall, a right side wall, an outer wall, and an inner wall, wherein the platform comprises a first end and a second end situated opposite each other, wherein the platform is swingable about a first cross pivot axle fixed in the drawer, wherein the platform is provided with a counterbalance or connected to the counterbalance by a connecting mechanism that connects the counterbalance with the platform, so that the first end of the platform is situated lower than the second end when there is no parcel on the platform, wherein the counterbalance is mounted so as to allow vertical sliding translational movement thereof along the outer wall of the drawer, wherein the blocking mechanism comprises: a lock that is operably connected with the counterbalance, such that when there is no parcel on the platform, the counterbalance holds the lock open, while when the parcel is disposed on the platform, the parcel outweighs the counterbalance and moves the second end into a lower position, and the lock is released to hold the drawer in a closed position, and a stop fixed in the box for engagement with the lock when the parcel is placed on the platform and the lock is released.