Patent ID: 8926033
Filing Date: 2015-01-06
Classification: E05B,E05C,E05D,E05Y,E06B,F25D

Abstract:
1. A door closure structure for a rotary door rotatably mounted on a main body, comprising: a hinge assembly, wherein the rotary door is mounted on the main body via the hinge assembly, and the hinge assembly comprises: a supporting plate, provided with a first hole at a first end and connected with the front end of the hinge body at a second end; a mask body fixed on the rotary door at a mounting point, wherein a mask cavity is defined in the mask body and a second hole is disposed in a surface of the mask body, a first surface of the mask body being open; and an engaging block retractably and movably disposed in the mask cavity, wherein a part of the engaging block is exposable out of the mask body from the second hole and the part of the engaging block extended out of the mask body is engagable with the first hole; a cover plate disposed on the first surface of the mask body to close the first surface, in which the second hole is formed in the cover plate, the cover plate being spaced apart from the mounting point of the mask body; an elastic member disposed between the mask body and the cover plate, the cover plate applying a preload to the elastic member; and a groove communicated with the first surface is formed in a second surface of the mask body adjacent to the first surface of the mask body; wherein in a closed state of the rotary door, the supporting plate is inserted into the groove, and the engaging block engages with the first hole to maintain closure of the rotary door relative to the main body.