Casement window combined sealing structure

Abstract

The invention relates to a combined type sealing structure for a casement window. The defects that an isobaric duckbilled rubber strip installed in a penetrating and inserting mode is prone to deforming, and leakage points occur in the position connected with an opening sash to affect sealing performance are overcome. The combined type sealing structure comprises an inner sealing rubber strip, an outer sealing rubber strip and an isobaric duckbilled rubber strip, wherein the inner sealing rubber strip and the outer sealing rubber strip are arranged at the lapping position of a window frame and a sash, and the isobaric duckbilled rubber strip is assembled between the window frame and the sash. The combined type sealing structure is characterized in that a clamping head of the isobaric duckbilled rubber strip is inserted into a clamping groove of a heat insulation supporting base, butyl adhesive tape of the flashing end is stuck to the surface of the end of the heat insulation supporting base and the surface of the top of a horn-type notch of the window frame for sealed connection, the duckbilled supporting end is tightly connected with the arc end face of the bottom of a heat insulation strip on the sash, buckles at the two ends of the heat insulation supporting base are clamped into a T-type notch and the horn-type notch in the window frame, and the bottom is supported on the surface of the top of a heat insulation strip of the window frame. The combined type sealing structure is reasonable in design, convenient and fast to operate by the adoption of combined installation, high in work efficiency and good in heat preservation effect, and has the advantages that the space of an airtight cavity in the indoor side is effectively reduced, and the thermal performance and the airtightness are improved.

Description

technical field [0001] The invention relates to a sealing structure of a casement window, in particular to a combined sealing structure of a casement window suitable for sealing and sealing between a window frame and a window sash with high water-tightness and air-tightness. Background technique [0002] At present, aluminum alloy windows have been widely used in various buildings. In terms of energy-saving design of the external windows of buildings, only two seals are provided at the overlap between the window sash and the window frame. For buildings with relatively high energy-saving requirements, it is difficult to meet the energy-saving requirements. According to the patent document report, as the announcement number is CN2683813Y "aluminum-plastic composite doors and windows sealed with duck-shaped rubber strips", in order to better improve water-tightness and air-tightness, the window frame and the opening sash of the window in the aluminum-plastic composite doors and...

AI Technical Summary

Problems solved by technology

Due to material factors, after the size becomes larger, the shape and size of the isobaric duckbill rubber strip is not beautiful, forming deformation, and the deformation of the duckbill rubber strip makes the seal at the connection with the opening fan prone to leaks

If small-sized equal-pressure duckbill rubber strips are used, the airtight cavity on the indoor side is relatively large, the air convection is strengthened, and the insulation effect is not good.

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