Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
The invention discloses a household fingerprint safe-guard door lock which comprises an outer door lock body, a cover board as well as a key panel and a fingerprint identification panel which are arranged on the outer door lock body, wherein two guide rails are arranged on the outer door lock body, grooves are formed in two sides of the inner wall of the cover board, each groove is composed of a straight section at the lower part and an expanding section at the upper part, the cross profile of the expanding section is in an inverted trapezoid, the guide rails are matched with the grooves to ensure that the cover board is arranged on the guide rails in a sliding way and respectively covers the key panel and the fingerprint identification panel, and balls on two side walls are distributed in a staggered way. The cover board covers the key panel and the fingerprint identification panel again by virtue of the gravity of the cover board to ensure a dustproof effect on the key panel and the fingerprint identification panel, and when the cover board moves downward, the expanding section in each groove is directly fastened with the upper end of each guide rail, so that the cover board is prevented from directly sliding down from the guide rail, and meanwhile, over-large mutual displacement between the cover board and the guide rail can also be overcome when the cover board is pulled down artificially.
The invention discloses a household fingerprint safe-guard door lock which comprises an outer door lock body, a cover board as well as a key panel and a fingerprint identification panel which are arranged on the outer door lock body, wherein two guide rails are arranged on the outer door lock body, grooves are formed in two sides of the inner wall of the cover board, each groove is composed of a straight section at the lower part and an expanding section at the upper part, the cross profile of the expanding section is in an inverted trapezoid, the guide rails are matched with the grooves to ensure that the cover board is arranged on the guide rails in a sliding way and respectively covers the key panel and the fingerprint identification panel, and balls on two side walls are distributed in a staggered way. The cover board covers the key panel and the fingerprint identification panel again by virtue of the gravity of the cover board to ensure a dustproof effect on the key panel and the fingerprint identification panel, and when the cover board moves downward, the expanding section in each groove is directly fastened with the upper end of each guide rail, so that the cover board is prevented from directly sliding down from the guide rail, and meanwhile, over-large mutual displacement between the cover board and the guide rail can also be overcome when the cover board is pulled down artificially.
Household coded safe-guard chain door lock with chip key
| Europäisches Patentamt | 2016