Lower rail high-airtightness device for broken-bridge heat insulation sliding window

Abstract

The invention discloses a lower rail high-airtightness device for a broken-bridge heat insulation sliding window. The lower rail high-airtightness device comprises a broken-bridge heat insulation device and a sealing device, wherein the broken-bridge heat insulation device comprises an inner rail, an outer rail and a heat insulation strip; the outer rail and the inner rail are connected by the heat insulation strip; the sealing device comprises a first sealing rubber strip, a second sealing rubber strip and a third sealing rubber strip; the first sealing rubber strip and the second sealing rubber strip are vertically arranged, and are abutted against the inner rail; the third sealing rubber strip is vertical to the first sealing rubber strip. By adopting the type, the lower rail high-airtightness device for the broken-bridge heat insulation sliding window has the advantages that the structure is novel, the design is optimized, the airtightness is high, the water tightness property is excellent, the heat insulation effect is realized, the waterproof property is good, the property is stable, the service life is long, the convenience and practicality are realized, and the like; the market prospect is broad in the popularizing of the lower rail high-airtightness device for the broken-bridge heat insulation sliding window.

Description

technical field [0001] The invention relates to the field of windows, in particular to a high air sealing device for the lower rail of a broken bridge heat-insulating sliding window. Background technique [0002] Windows are roughly divided into push-pull type, casement type and folding type according to the opening method. Among them, push-pull and flat open are the most used at present. The advantages of casement windows are large opening area, good ventilation, good sealing, excellent sound insulation, heat preservation and impermeability. The later maintenance of the inner opening type is convenient; the outer opening type does not take up space when opening. The disadvantage is that the window width is small and the field of vision is not wide. Opening the external window takes up a space outside the wall, and it is easy to be damaged when the wind blows; while the inward opening window takes up part of the indoor space, and it is inconvenient to use screens, and it ...

AI Technical Summary

Problems solved by technology

The window sash is in a good stress state and is not easy to be damaged, but the ventilation area is limited to a certain extent

[0004] At present, most sliding windows on the market generally have poor airtight performance, and the airtight performance of sliding windows produced in engineering batches cannot be guaranteed.

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