Anti-falling hinge used for casement window

Abstract

The invention provides an anti-falling hinge used for a casement window. The anti-falling hinge used for the casement window comprises a mounting base, a first connecting rod, a second connecting rod,a third connecting rod and a window leaf mounting piece; one end of the second connecting rod is hinged to the mounting base; the other end of the second connecting rod is hinged to a slide block sliding on the third connecting rod; a fastening piece is connected to one end of the window leaf mounting piece through a steel rope; the fastening piece is mounted on an external frame; the external frame is provided with a clamping groove; multiple rotating sheets are correspondingly riveted on the mounting base and the fastening piece; by rotating the rotating sheets, the rotating sheets can be clamped in clamping grooves; and the middle part of each rotating sheet is provided with a through type hexagonal through hole. According to the anti-falling hinge used for the casement window, as thehexagonal through holes are formed in the rotating sheets, and fastening bolts penetrate into the positions of the hexagonal through holes to fix the mounting base on the transverse external frame, double guarantee is realized, and the mounting base is prevented from falling off; and as one fastening piece is connected to one end of the window leaf mounting piece through a steel rope, and the fastening piece is mounted on the external frame, the casement window is prevented from falling off after the hinge falls off.

Description

technical field [0001] The invention relates to the technical field of door and window hinges, in particular to an anti-fall hinge for casement windows. Background technique [0002] At present, some office buildings or residential buildings on the market adopt casement windows that are pushed and pulled to the outside. When the casement windows are in use, the sash and the window frame are only connected together by hinges, and the sash is usually suspended outside the window when in use. In this way, due to the frequent use of the hinge, it is often wet by the rain when it rains, and it is prone to damage. When the hinge is damaged, the window sash will fall off from the window frame, especially if the window sash of a high-rise building falls off, it will cause high altitude. The phenomenon of falling objects will not only damage the objects downstairs, but more dangerously will injure pedestrians, and even cause the life danger of pedestrians. Therefore, a device that ca...

AI Technical Summary

Problems solved by technology

[0002] At present, some office buildings or residential buildings on the market adopt casement windows that are pushed and pulled to the outside. When the casement windows are in use, the sash and the window frame are only connected together by hinges, and the sash is usually suspended outside the window when in use. In this way, due to the frequent use of the hinge, it is often wet by the rain when it rains, and it is prone to damage. When the hinge is damaged, the window sash will fall off from the window frame, especially if the window sash of a high-rise building falls off, it will cause high altitude. The phenomenon of falling objects will not only damage the objects downstairs, but more dangerously will injure pedestrians, and even cause the life danger of pedestrians. Therefore, a device that can prevent the window sash from falling is needed

[0003] There are also some devices on the market to prevent the sash from falling after the sash and the window frame are separated. For example, the Chinese invention patent with the authorized announcement number CN202731686 discloses a door and window anti-fall device. The fixing parts are composed of fixing parts at both ends, and the fixing parts are respectively connected to the window sash and the window frame. Ordinary connections, such as welding, will have welds, and the connection and fixing effect is not good. In this way, when the sash is heavy in high-rise buildings, after the sash is detached from the window frame, the sash will fall due to the heavy weight of the sash. There is a large pulling force at the moment, so that the pulling force between the cable and the fixing part will cause the cable to be torn off from the fixing part under the action of this instantaneous large pulling force, so that the fixing part will follow the window sash after being torn off. Falling together will still cause the window sash to fall, or cause the phenomenon of falling objects from high altitude, and the use effect is poor. In addition, in order to meet the needs of two different groove widths of the European standard and the national standard, the existing hinge base adopts a rotating rotary vane The hinge base is installed by being stuck in the groove of the outer frame, but this method of using friction to install the hinge has insufficient bearing capacity, and there is a risk that the hinge will fall off the outer frame, eventually causing the hinge and the window to fall together.

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