A concealed hinge that can be used in narrow windows

By designing a multi-point connected concealed hinge structure on narrow windows, the problems of insufficient hinge length and load-bearing capacity in narrow windows are solved, achieving stable opening and closing and high load-bearing capacity for narrow windows, which is suitable for narrow windows, especially double-glazed soundproof windows.

CN224282298UActive Publication Date: 2026-05-26XINGSANXING CLOUD TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XINGSANXING CLOUD TECH CO LTD
Filing Date
2025-03-10
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing concealed hinges are too long to be used on narrow windows, and their load-bearing capacity is insufficient to meet the installation requirements of narrow windows, especially the high load-bearing requirements of double-glazed soundproof windows.

Method used

A concealed hinge for narrow windows was designed, which increases the number of connection points and load-bearing capacity through a multi-point connection structure between the window connector and the frame connector, including the rotational and sliding fit of the first and second connecting plates, as well as the setting of auxiliary connecting plates.

Benefits of technology

The compact installation position of the narrow window achieves stable opening and closing of the window sash and enhances its load-bearing capacity, ensuring normal use of the narrow window and meeting high load-bearing requirements.

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Abstract

This invention provides a concealed hinge suitable for narrow windows, comprising a window connector connected to the window sash and a frame connector connected to the frame. A first connecting plate connects the window connector and the frame connector, with one side of the first connecting plate rotatably engaged with the frame connector and the other side movably connected to the window connector. A second connecting plate connects the window connector and the frame connector, with one side of the second connecting plate rotatably engaged with the window connector and the other side movably connected to the frame connector, and the first connecting plate and the second connecting plate are rotatably engaged. This invention increases the load-bearing capacity of the hinge for narrow windows and is suitable for narrow window structures with compact hinge installation positions.
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