Lamp shell and gap-variable hinge

Abstract

The invention provides a lamp shell and a gap-variable hinge. An upper shell and a lower shell of a lamp are hinged together by the gap-variable hinge, the gap-variable hinge comprises two pins, two pin seats and a hinge seat, the pins penetrate the pin seats and hinge the pin seats at two ends of a hinge seat, the hinge seat is connected together with the lower shell in the middle portion of one side of the edge of the lower shell, the pin seats are connected together with the upper shell at two ends of the hinge seat corresponding to the edge of the upper shell, the pins can axially move relatively to the pin seats and the hinge seat, a positioning sleeve for pin moving is arranged between the pins and the pin seats, and the hinge seat is provided with diameter-variable holes matched with the pins. The lamp shell and the gap-variable hinge have the advantages that matching gaps of the pins and the hinge seat are changed through axial moving of the pins, so that two functions of flexible and free rotating when the upper shell and the lower shell of the lamp are open and closed and accurate positioning when the lower shell and the upper shell of the lamp are assembled are realized.

Description

technical field [0001] The invention relates to the field of lighting technology, in particular to a hinge structure of a lamp housing. Background technique [0002] The structure of the lamp shell is usually divided into an upper shell and a lower shell. Generally, the connection between the upper shell and the lower shell is fixed by screws or buckles. In order to facilitate the operation when replacing the light source, a hinge structure is added between the upper case and the lower case to realize the rotation and opening of the upper case and the lower case. When disassembling the lower case, it is generally not necessary to remove the lower case. [0003] In order to make the lower shell rotate flexibly relative to the upper shell during design, the pin shaft of the hinge and the size of the pin hole are generally matched with a large clearance. In this way, after the lower shell is closed on the upper shell, due to the excessive gap of the hinge, the cooperation bet...

AI Technical Summary

Problems solved by technology

In this way, after the lower shell is combined with the upper shell, due to the excessive gap of the hinge, the cooperation between the upper shell and the lower shell will be offset, which will affect the sealing of the lamp and the alignment during assembly.

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