CN204729423U

CN204729423U - A kind of flat nail

Info

Publication number: CN204729423U
Application number: CN201520469275.XU
Authority: CN
Inventors: 陈宗尧
Original assignee: Zhejiang Chaoyue Hardware & Chemical Co Ltd
Current assignee: Zhejiang Chaoyue Hardware & Chemical Co Ltd
Priority date: 2015-07-03
Filing date: 2015-07-03
Publication date: 2015-10-28
Anticipated expiration: 2025-07-03

Abstract

The utility model discloses a kind of flat nail, comprise a bridge cap and two nail arms, described nail arm surface is set to reticulate patterned surface, and described reticulate patterned surface is provided with hangnail, and described top arm surface is respectively layers of copper, stainless steel lining and three tempered martensite layers from outside to inside.Such setting, when be given a shock or pulling force time, make the utility model be not easy to deviate to drop from fastened species, cause unnecessary waste, increase the stress of its inside, prevent further fracture.

Description

A kind of flat nail

Technical field

The utility model relates to fastener areas, relates in particular to a kind of flat nail.

Background technique

Generally make with galvanized wire, similar to staple, model generally represents with J prefix.Be the one of pneumatic gun nail, be mainly used in engineering, household decoration, Furniture manufacture, multiple industries such as packaging, leather, shoe-making process product.As shown in Figure 1, it is in " n " type for flat nail of the prior art, and be made up of a bridge cap and two nail arms, each flat nail bonds composition row shape more mutually.

But due to its structure of flat nail causes bridge cap portion can be out exposed when hammering into fastened thing, if there is gap in bridge cap portion and fastened thing like this, bridge cap portion is easy to be subject to external pull, so now owing to generally following closely arm smooth surface, is extracted out by flat nail so very just easy, cause larger inconvenience, with the waste to material, and it is long owing to following closely arm, once the internal stress applied on it is excessive, so be easy to bend in the middle part of nail arm, cause the wasting of resources.

Model utility content

For the deficiency that prior art exists, the purpose of this utility model is that provide a kind of not easily extracts out and can play the antirust flat nail with putting fracture after shooting fastened thing.

For achieving the above object, the utility model provides following technological scheme: a kind of flat nail, comprise a bridge cap and two nail arms, it is characterized in that: described nail arm surface is set to reticulate patterned surface, described reticulate patterned surface is provided with hangnail, and described top arm surface is respectively layers of copper, stainless steel lining and three tempered martensite layers from outside to inside.

The setting of reticulate patterned surface, can ensure that situation of skidding can not occur when shooting fastened thing for it, and under vibrations or other situations, ensure that flat nail of the present utility model can not skid off its fastened hole easily.The setting of hangnail, one can not affect frictional force when shooting, and two after shooting, and can play the effect that flat nail can not be taken out easily from fastened thing.Ferrous products very easily gets rusty under normal conditions, often plays rust inhibition at ferrous products electroplating surface one deck copper during manufacture.So layers of copper and stainless steel lining can ensure its working life, the setting of three tempered martensite of its inside, can increase the stress of its inside, prevents fracture further.

The utility model can be set to further: be installed with fillet between described bridge cap and nail arm, described fillet is set to two along vertical line place, the center mirror image of bridge cap.

Such setting, when using air gun to carry out attacking hole, fillet adds the stress of its radial direction, when making nail arm be subject to folding force, a reaction force preventing it from bending is provided, can ensures that it can stablize vertical must shooting in fastened thing, and the setting of paint, add waterproof of the present utility model and rustless property, thus increase its working life.

The utility model can be set to further: described fillet is set to the steel wire that diameter is less than 5 millimeters, and its two ends are welded on bridge cap and nail arm respectively.

Fillet is set to steel wire and limits its diameter, can ensure shoot fastened after, fillet is subject to fastened thing surface and the pressure of bridge cap upper surface people for providing, will rupture, just can be identical with original flat nail state after can ensureing to shoot fastened thing, prevent the fastening effect of fillet to it from playing interference effect.

The utility model can be set to further: the bottom of described nail arm is provided with circular cone ailhead.

Compared to prior art, the utility model creates following beneficial effect: arrange like this, when be given a shock or pulling force time, the utility model is made to be not easy to deviate to drop from fastened species, cause unnecessary waste, increase the stress of its inside, prevent fracture further.

Accompanying drawing explanation

Fig. 1 is prior art structural representation;

Fig. 2 is the utility model structural representation;

Fig. 3 is nail arm configuration enlarged diagram;

Fig. 4 is the main apparent direction schematic diagram of the utility model;

Fig. 5 is bridge cap enlarged diagram.

Reference character: 1, bridge cap; 11, high molecular abrasion-proof ceramic layer; 12, three tempered martensite layers; 2, arm is followed closely; 21, hangnail; 22, reticulate patterned surface; 23, circular cone ailhead; 24, layers of copper; 25, stainless steel lining; 3, fillet.

Embodiment

Referring to figs. 1 through Fig. 5, the utility model embodiment is described further.

As shown in Figure 2 and Figure 4, a kind of flat nail, comprise a bridge cap 1 and two nail arms 2, fillet 3 is installed with between described bridge cap 1 and nail arm 2, described fillet 3 is set to two along vertical line place, the center mirror image of bridge cap 1, as shown in Figure 3, the surface of described nail arm 2 is set to reticulate patterned surface 22, and described reticulate patterned surface 22 is provided with hangnail 21.Described fillet 3 is set to the steel wire that diameter is less than 5 millimeters, and its two ends are welded on bridge cap 1 and nail arm 2 respectively.As shown in Figure 5, the bottom of described nail arm 2 is provided with circular cone ailhead 23.Described bridge cap 1 surface is provided with high molecular abrasion-proof ceramic layer 11 and described three tempered martensite layers 12 from outside to inside.The thickness of high molecular abrasion-proof ceramic layer 11 can be between 10 millimeters to 3 millimeters, and three times tempered martensite layer thickness is chosen as between 6 millimeters to 15 millimeters.Described high strength flat nail surface is respectively layers of copper 24 and stainless steel lining 25 from outside to inside.Described stainless steel lining 25 internal surface is also provided with three tempered martensite layers.Described layers of copper 24 can adopt electroplating technology, and its thickness is chosen as between 2 millimeters to 4 millimeters, and the Precipitation-hardening Stainless Steel model that stainless steel lining 25 is the most frequently used is also 17-4 usually; 17%Cr, 4%Ni, chromium 18-20.There is provided maximum anti-corrosion capacity under the prerequisite of proof strength, its thickness is chosen as between 3 millimeters to 6 millimeters.

Three tempered martensite: first stage, 80-200 DEG C of martensite decomposes, when steel is heated to about 80 DEG C, its interior atoms mobility increases to some extent, and the supersaturation carbon in martensite starts progressively to separate out with the form of carbide, in martensite, the degree of super saturation of carbon constantly reduces, meanwhile, distortion of lattice degree also weakens, and internal stress decreases, this go out the tissue that forms of the lower martensite of degree of super saturation and superfine carbide, be called tempered martensite; Second stage, 200-300 DEG C of retained austenite is decomposed, when steel heating-up temperature is more than 200 DEG C, martensite continues to decompose, and meanwhile, retained austenite also starts to decompose, change lower bainite or tempered martensite into, during to 300 DEG C, the decomposition of retained austenite terminates substantially; Phase III, the formation of 300-400 DEG C of cementite, steel is at this one-phase of tempering, the Carbides Transformation of separating out from supersaturated solid solution is granular cementite (Fe3C), when temperature reaches 400 DEG C, in αsolidsolution, oversaturated carbon is separated out substantially completely, and α-Fe lattice recovers normal, change ferrite into by supersaturated solid solution, the internal stress of steel is removed substantially.

Such setting, when using air gun to carry out attacking hole, fillet 3 adds the stress of its radial direction, when making nail arm 2 be subject to folding force, provide a reaction force preventing it from bending, can ensure that it can be stablized and vertically must shoot in fastened thing, increasing can prevent its bridge cap 1 surface from rupturing because of wearing and tearing, and the setting of three tempered martensite, the stress of its inside can be increased, prevent fracture further.Fillet 3 is set to steel wire and limits its diameter, can ensure shoot fastened after, fillet 3 is subject to fastened thing surface and the pressure of bridge cap 1 upper surface people for providing, will rupture, just can be identical with original flat nail state after can ensureing to shoot fastened thing, prevent the fastening effect of fillet 3 to it from playing interference effect.And the setting of circular cone ailhead 23 substantially reduces lifting surface area when attacking hole, it is made to be more prone to the utility model to hammer into fastened thing.The setting of hangnail 21, one can not affect frictional force when shooting, and two after shooting, and can play the effect that flat nail can not be taken out easily from fastened thing.

The above is only preferred implementation of the present utility model, protection domain of the present utility model be not only confined to above-described embodiment, and all technological schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims

1. a flat nail, comprise a bridge cap and two nail arms, it is characterized in that: described nail arm surface is set to reticulate patterned surface, and described reticulate patterned surface is provided with hangnail, described top arm surface is respectively layers of copper, stainless steel lining and three tempered martensite layers from outside to inside.

2. a kind of flat nail as claimed in claim 1, is characterized in that: the bottom of described nail arm is provided with circular cone ailhead.