Guide sleeve for concrete nail

Abstract

The invention discloses a guide sleeve for a concrete nail, which comprises a fishing rod type multilayer rigid ring body, wherein the inner wall of the rigid ring body at the innermost layer is tightly matched with the outer circumference of the concrete nail. In the invention, while the concrete nail is nailed, as the inner wall of the rigid ring body at the innermost layer is tightly matched with the outer circumference of the concrete nail, the concrete nail is not deviated; and in addition, as the concrete nail is penetrated into the wall, the multilayer ring body is shortened and the inner wall is always closely contacted with the outer circumference of the concrete nail, thus the nail is less likely to be bent.

Description

technical field [0001] The invention relates to an auxiliary device for cement nails, in particular to a guide sleeve for cement nails. Background technique [0002] Cement nails are made of alloy steel, and generally have a relatively high hardness. The effect is better when nailing concrete walls. On the one hand, they will not bend, and on the other hand, they are well combined with the wall. However, when encountering a harder wall, there will still be problems with the cement nails, the nails cannot go in, and the phenomenon of bending is still common. Contents of the invention [0003] The invention provides a guide sleeve for cement nails for smoothly nailing cement nails into a wall. [0004] A guide sleeve for cement nails, comprising a fishing rod-type multi-layer rigid ring body, the inner wall of the innermost rigid ring body closely fits with the outer circumference of the cement nail. [0005] Each layer of the rigid ring body is composed of two half-ring s...

AI Technical Summary

Problems solved by technology

However, when encountering a harder wall, there will still be problems with the cement nails, the nails cannot go in, and the phenomenon of bending is still common

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