Concealed internal side-hung upper hinge

Abstract

The invention discloses a concealed internal side-hung upper hinge. The concealed internal side-hung upper hinge comprises a telescopic rod, a turning hinge body and a connecting plate, wherein the telescopic rod is arranged on the top of a suspended sash window; the turning hinge body is arranged on a top corner of an upper window frame; the connecting plate is arranged between the telescopic rod and the turning hinge body; the telescopic rod comprises a bottom guiding plate and a telescopic base arranged on the guiding plate; the connecting plate comprises a first connecting plate body and a second connecting plate body; the turning hinge body comprises a first turning piece, a second turning piece and a third turning piece; the front end of the second connecting plate body is connected with one end of the telescopic base via a pin; the rear end of the second connecting plate body is fixed on the first connecting plate body; the second connecting plate body can rotate along pins arranged at two ends of the second connecting plate body; the second connecting plate body and the first connecting plate body form an 'L'-shaped structure; a second chute is formed in front of the third turning piece; a projected fixing rod is arranged in the second chute; and the first turning piece and the third turning piece respectively rotate along the second chute reversely. The concealed internal side-hung upper hinge is simple in structure, high in sealing performance and flexible and convenient to stretch; a window can be attractive; and a sash and a window frame can be closely adhered or unfolded.

Description

technical field [0001] The invention relates to the field of door and window hardware accessories, in particular to an invisible inner casement upper hinge. Background technique [0002] Hinges are mainly installed on windows. At present, ordinary hinges on the market are generally installed on window types that open inward or outward on the side of the window. Basically, the commonly used hinges extend from the fan to the frame. That is to say, when the rubber strip is compressed and sealed, the hinge must be sandwiched in the middle, and some even have to cut off a section of the rubber strip, which affects the sealing performance, affects the sealing performance of the window and the energy-saving effect, and reduces the thermal insulation, heat insulation and sound insulation of the window; There have been hidden hinges on the market, but due to the complex structure and many parts, when the hinge is stretched and opened, the cutting edge of the sash and window frame wil...

AI Technical Summary

Problems solved by technology

[0002] Hinges are mainly installed on windows. At present, ordinary hinges on the market are generally installed on window types that open inward or outward on the side of the window. Basically, the commonly used hinges extend from the fan to the frame. That is to say, when the rubber strip is compressed and sealed, the hinge must be sandwiched in the middle, and some even have to cut off a section of the rubber strip, which affects the sealing performance, affects the sealing performance of the window and the energy-saving effect, and reduces the thermal insulation, heat insulation and sound insulation of the window; There have been hidden hinges on the market, but due to the complex structure and many parts, when the hinge is stretched and opened, the cutting edge of the sash and window frame will often appear stuck, which is not conducive to the hinge rotating at the maximum angle and unfolding. It is difficult to achieve a tight fit on the sides of the rear sash and window frame

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