Connecting device at upper and lower ends of mullion of aluminum alloy casement

Abstract

The invention discloses a connecting device at upper and lower ends of a mullion of an aluminum alloy casement. The connecting device comprises a connecting device body capable of being inserted at the end of the casement mullion; the connecting device body comprises two symmetrical supporting members and one round hole, and the two supporting members form a groove. The connecting device is characterized in that the supporting members of the connecting device body are provided with guide grooves along the direction of an aluminum-alloy outer window guide rail; the connecting device further comprises an adjusting device comprising an inserting groove, inserting legs and a clamp connecting device; the inserting groove can be inserted in a groove connecting with the device body, the inserting legs can be inserted into the guide grooves of the supporting members, and the clamp connecting device can be connected to the connecting device body in matching and clamping manners. By the aid of the connecting device at the upper and lower ends of the mullion of the aluminum alloy casement, processing and producing cost can be reduced, the casement can be prevented from dropping down, the mullion can be opened and closed flexibly, and the mullion is tightly combined with a sash.

Description

technical field [0001] The invention relates to a spare part of an aluminum alloy window, in particular to a connection device for the upper and lower ends of an aluminum alloy window sash mullion. Background technique [0002] The connection device of the upper and lower ends of the aluminum alloy window mullion is mainly an accessory installed on the upper and lower ends of the window mullion. The round hole on the sash is smoothly connected with the screw hole on the sash frame. Because the inner frame profiles of aluminum alloy windows are all hollow, the connection device can block the hollows at both ends of the mullion, thereby improving the airtight performance of the whole window, and the insertion of the main body of the connection device can reduce the size of the window sash and the outer frame guide rail. Stabilize the window sash in the hollow space between them. [0003] The realization principle of the function of the aluminum alloy window is that the rolle...

AI Technical Summary

Problems solved by technology

[0004] 1) When the matching gap between the connecting device and the outer frame guide rail is too large, when the window sash is opened or closed, it will shake under the external force, and the window will make a whistling sound, which seriously affects the watertightness and airtightness of the aluminum alloy window. Tightness and wind pressure resistance;

[0005] 2) When the matching gap between the connecting device and the outer frame guide rail is too small, the connecting device is easy to rub against the outer frame guide rail during the push-pull process of the window sash, which affects the push-pull effect of the entire window

Or because the matching gap is too small and the rotation angle of the window sash is not enough, the window sash cannot be installed on the outer frame;

[0006] 3) In order to ensure a certain gap, the grooves punched on the upper and lower sides of the sash mullion and the exposed screw holes also affect the aesthetics of the whole window to varying degrees;

[0007] 4) Due to the consideration of the installation of the sash, the groove depth of the connecting device at the upper end is usually greater than that of the connecting device at the lower end, resulting in different punching gaps on the upper and lower sides of the sash mullion, which virtually increases the production process and cost

[0008] Because the groove opening of the connection device is too large, there will be shaking when the window sash is pushed and pulled, and the small groove opening will affect the installation and push-pull effect of the window sash. The notch is minimized, but there is still wobble when the sash is pushed and pulled

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