A heavy-duty concealed hinge with a small gap in the door

Abstract

The invention provides a small door slot heavy hidden hinge. The small door slot comprises first hinge parts, a wall base, a door base, a second hinge part and a third hinge part, wherein the bottom of one of the first hinge parts is hinged to the wall base, the bottom of the other first hinge parts is hinged to the door base, one end of the second hinge part is hinged to the wall base, the otherend of the second hinge part is hinged to the first hinge part hinged to the door base, one end of the third hinge part is hinged to the first hinge part hinged to the wall base, the other end of thethird hinge part is hinged to the door base through a knurling rotating shaft, and the middle part of the second hinge part and the middle part of the third hinge part are hinged through the knurlingrotating shaft. The small door slot heavy hidden hinge adopts a multi-point linkage hinge structure, the matching size among connecting parts is accurate, the fitting degree is better, the connectionis firm, the bearing capacity is large, the opening and closing angle is large, the stability is good, the service life is longer, and the door leaf sag can be effectively prevented.

Description

technical field [0001] The invention relates to the technical field of hinges, in particular to a heavy-duty concealed hinge with a small door gap. Background technique [0002] At present, the traditional hinge is composed of a fixed page, a movable page and a hinge shaft. The hinge shaft is cylindrical, which runs through the fixed page and the movable page, and makes the fixed page and the movable page form a hinge. The hinge function of this structure is single, and There are only two fixed structures. Under the weight of the door or long-term running-in, the door will sag and can only be opened by itself, and the opening and closing angle is small. In addition, the traditional hinge of this type has a protruding shaft, and the door gap greatly affects the appearance, and it does not have the ability to withstand a door weighing more than 120 kilograms. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the present invention proposes a hea...

AI Technical Summary

Problems solved by technology

[0002] At present, the traditional hinge is composed of a fixed page, a movable page and a hinge shaft. The hinge shaft is cylindrical, which runs through the fixed page and the movable page, and makes the fixed page and the movable page form a hinge. The hinge function of this structure is single, and There are only two fixed structures. Under the weight of the door or long-term running-in, the door will sag and can only be opened alone, and the opening and closing angle is small

In addition, the traditional hinge of this type has a protruding shaft, and the large gap between the doors affects the appearance, and it does not have the ability to withstand a door weighing more than 120 kg.

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