Novel corner connection structure for door and window profiles

Abstract

The invention relates to a novel corner connection structure for door and window profiles. The connection structure comprises a vertical profile and a transverse profile, wherein a connection end of the vertical profile is provided with a first inclined face, an included angle a is formed by the first inclined face and a horizontal plane, a connection end of the transverse profile is provided with a second inclined face, an included angle b is formed by the second inclined face and the horizontal plane, a + b = 90 degrees, a>=30 degrees, b>=30 degrees, the first inclined face is matched with the second inclined face, and the first inclined face and the second inclined face are jointed and welded; and a connection groove or connection grooves is / are formed in one or two side faces of the connection end of the vertical profile respectively, an included angle c is formed by the upper side face of the connection groove or the upper side faces of the connection grooves and a vertical plane, 90 degrees >= c >= 75 degrees, a connecting piece or connecting pieces is / are arranged on one or two side faces of the connection end of the transverse profile, and the connecting piece or the connecting pieces is / are matched with the connection groove or the connection grooves and arranged inside the connection groove or the connection grooves in an attached mode through adhesives. After the connection structure is used for corner combining, a corner is flat, joints are small, interior side surfaces are attractive in appearance, and the quality of polyvinyl chloride (PVC) plastic corner combining is improved.

Description

technical field [0001] The invention relates to a frame connection structure of a door and window, in particular to a corner connection structure of a novel door and window profile. technical background [0002] Nowadays, the proportion of PVC plastic doors and windows on the market is increasing day by day, and there are many ways and types of corner processing. There are roughly two ways to set the corners of PVC plastic doors and windows on the market. The first one is 45°. That is to say, the frame fan profile is cut at 45°, and then the corners are assembled by corner coding or welding. The second is the 90° group angle, which is to cut the door and window frame leaf horizontally or vertically at 90°, and then use the reverse connection group angle or welded group angle on the corresponding matching section. These two methods have their own advantages and disadvantages, but the use of thin wood PVC plastic windows, PVC plastic windows covered with PVC film and colored...

AI Technical Summary

Problems solved by technology

These two methods have their own advantages and disadvantages, but the use of thin wood PVC plastic windows, PVC plastic windows covered with PVC film and colored PVC plastic doors and windows will cause damage to the skin at the corners of the interior, thus affecting the appearance quality of the entire door and window

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