Wall cement board small head nails

Abstract

The invention discloses a small head nail for a wall cement slab, which comprises a nail cap (1), a nail rod (2) and a nail tip (3) positioned at the top end of the nail rod (2), wherein a screw thread area (4), a straight thread area (5) and an annular thread area (6) are arranged on the surface of the nail rod (2) from the nail cap (1) to the nail tip (3) sequentially, and isolated from one another. According to the small head nail, the screw thread area, the straight thread area and the annular thread area are reasonably distributed on the surface of the nail rod, so that a grasping force of the small head nail is increased; a previous punched part cannot damage a grasping force of a subsequent part; straight threads are adopted, so that the small head nail is more suitable for thermal expansion and cold contraction; a reasonable diameter ratio between the nail cap and the nail rod allows that the nail cap can be submerged into a nail hole of the cement slab, surface paint treatment is facilitated, and rainwater infiltration is avoided; and a welding surface is adopted, so that the small head nail can be manufactured into a coil nail row by a welding wire, is convenient to use and convenient and quick to operate, and is suitable for popularization and use.

Description

technical field [0001] The invention relates to a cement nail, in particular to a wall cement board small-head nail with reasonable surface structure distribution, strong gripping force and the ability to prevent rainwater from penetrating along the nail hole. Background technique [0002] At present, houses in Australia, New Zealand and other countries mostly use wooden boards for exterior walls. The wooden boards are fixed on the roof members of the house by iron nails. The iron nails are prone to mildew over time and reduce the service life of the house. In order to solve this problem, cement boards have been installed on the outer surface of wooden boards, which are artificially nailed in with cement nails. This method is time-consuming and labor-intensive, and the surface structure of the existing cement nails is unreasonable, resulting in changes in the gripping force due to thermal expansion and contraction, and the unreasonable ratio of the diameter of the nail cap ...

AI Technical Summary

Problems solved by technology

This method is time-consuming and labor-intensive, and the surface structure of the existing cement nails is unreasonable, resulting in changes in the gripping force due to thermal expansion and contraction, and the unreasonable ratio of the diameter of the nail cap to the diameter of the nail shaft, resulting in a large nail hole surface, It is easy to cause rainwater to seep from the wall

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