1. Full-cover hinge: In the process of opening and closing, the full-cover hinge can completely cover the door leaf and the door frame, so that the door leaf and the door frame are flush and closely attached, ensuring the sealing performance and safety performance of the door. Full-cover hinges can provide maximum protection for doors and frames and reduce the intrusion of dust, air and moisture. Full-cover hinges are often used in places such as doors and windows that require high sealing performance.
2. Half-lid hinge: In the process of opening and closing, the half-lid hinge can only cover a part of the door leaf and a part of the door frame, and cannot be completely flush. Its coverage angle is small, and the door leaf can slightly protrude out of the door frame, but the sealing performance and safety performance of the door are still guaranteed. Half-lid hinges are often used in places with uniform sealing performance requirements, such as indoor doors and cupboard doors.
3. Uncovered hinge: In the process of opening and closing, uncovered hinge does not have the ability to cover the door leaf and door frame. The door leaf is completely exposed, leaving a certain gap between the door and the door frame. This kind of hinge is suitable for places with low requirements for sealing performance, such as indoor doors and door handles.
In a word, the full cover hinge provides the highest sealing and protection performance, while the half cover hinge is between the full cover hinge and the uncovered hinge, and the uncovered hinge at least provides sealing and protection performance. What kind of hinge to choose should be evaluated according to the specific use place and demand.