High waterproofing lap type locking screw steel plate

Abstract

The invention relates to a high waterproofing lap type locking screw steel plate. The steel plate includes a male rib (1) and a female rib (2). The male rib (1) and the female rib (2) are respectivelyarranged on the two ends of the steel plate. The male rib (1) and the female rib (2) are tightly connected with each other at the lap joint through self-tapping screws and purlins. The steel plate ischaracterized in that the end portion of the male rib (1) is provided with a bend (11), the bend (11) is provided with a water stop tank (12), the water stop tank (12) is arranged along a direction parallel to the male rib (1) and the female rib (2), the water stop tank (12) is filled with a sealing material, and the sealing material matches the female rib (2). Compared with the prior art, the high waterproofing lap type locking screw steel plate has advantages of good waterproof effect, convenient installation and the like.

Description

technical field [0001] The invention relates to a screw-locking steel plate used for construction, in particular to a high-waterproof lap-joint screw-locking steel plate. Background technique [0002] In the traditional light steel building maintenance system panel type, the lock screw plate has been widely used for its simple installation and high effective utilization rate. The lock screw plate is connected with the purlin by self-tapping screws or automatic bolts, and the wind resistance Good ability. [0003] Existing lock screw plate as attached figure 1 As shown, the two ends of the board are male ribs and female ribs with matching shapes, and two adjacent boards are overlapped by the male ribs and female ribs, and self-tapping nails are installed at the lap joints. Its disadvantages are: the lock screw plate is usually a metal plate, and the distance between the two plates at the lap joint is small, which will cause capillary phenomenon, causing capillary water to s...

AI Technical Summary

Problems solved by technology

Its disadvantages are: the lock screw plate is usually a metal plate, and the distance between the two plates at the lap joint is small, which will cause capillary phenomenon, causing capillary water to stay in it, affecting the waterproof effect, especially when it is used on a roof with a large slope; When some locking screw boards are installed on site, it is necessary to mark the line to ensure that the self-tapping screws are installed neatly, which affects the strength of the metal plate, and when the self-tapping screws drill through the board surface, it is easy to damage the board surface around the nail.

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