CN2340975Y - Nail - Google Patents

Abstract

The utility model discloses an improved metal nail. The proper position of the middle of an originally used nail is additionally provided with a reverse nail whose front and back parts, right and left parts are symmetrical to each other mutually. When the nail is nailed into an object, the reverse nail can expand naturally to cling to the object tightly; when the nail acts outward by force, the tip of the reverse nail can be nailed into the object, so that the nail can not shed or be drawn out easily. With the advantages of simple structure, convenient manufacture, economy and utility, the utility model is especially suitable for nailing firm objects.

Description

A kind of nail

The utility model relates to a kind of metal nail field, be particularly useful for following closely the nail of solid object.

Now no matter the nail of Shi Yonging is steel nail or iron nail, is used to follow closely the object (as cement wall, high-density plastic, compression timber etc.) of comparatively robust, because it is firm by the nail thing, its elasticity is relatively poor, and nail often can not be extruded, be critical and come off easily or be extracted easily, and its nail thing effect is undesirable.

The purpose of this utility model is to make nail when pegging solid object, does not come off or is extracted easily.

In order to finish above-mentioned task, the scheme that the utility model is taked is: before and after setting up in the appropriate location, middle part of the nail of existing use and about respectively symmetry fall nail, after nail was tufted into firm object, its meeting of falling the nail was splashed naturally and is risen, tightly lean on the jail with the object that is contacted, increase frictional force.Also because it falls point of nail towards the opposite direction of nail point, when chance power is outwards done the time spent, the point of nail of falling just can hammer into object, and nail is unlikely to come off or extracted easily thereby make, and realizes the purpose of this utility model.

Above-mentioned pin structure is simple, and is easy to make, economical and practical.

The utility model is described in further detail below in conjunction with drawings and Examples:

Accompanying drawing is the transformation schematic representation of a kind of nail of the utility model.Fig. 1 is a plan view, and Fig. 2 is a left view.

In the transformation schematic representation of a kind of nail shown in the drawings, the medium position of nail (1) be provided with some front and back and about the respectively symmetrical nail (2) that falls, after nail (1) hammers into object, the nail (2) that falls is splashed naturally and is risen, tightly by firm object, outwards do the time spent when nail (1) chance power, the tip of falling to follow closely (2) just hammers in the object, makes unlikely the coming off of nail (1).

Claims (2)

1, a kind of nail is made up of the nail (1) and the nail (2) that falls, and it is characterized in that: before and after the appropriate location, middle part of nail (1) is provided with and about the following closely of symmetry (2) respectively.

2, by the described a kind of nail of claim 1, it is characterized in that: it can be two, four or their multiple that nail (1) is gone up the nail (2) that falls that is provided with.

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