CN201190717Y

CN201190717Y - Tapered slope barb joint nail

Info

Publication number: CN201190717Y
Application number: CNU2008200929681U
Authority: CN
Inventors: 何文得
Original assignee: SHENZHEN GRACE CHANCE ENTERPRISE CO Ltd
Current assignee: SHENZHEN GRACE CHANCE ENTERPRISE CO Ltd
Priority date: 2008-03-28
Filing date: 2008-03-28
Publication date: 2009-02-04
Anticipated expiration: 2018-03-28
Also published as: CN101403407A

Abstract

The utility model relates to a cone-shaped pitch barb connecting nail, in particular to assembly combination furniture connecting piece. The cone-shaped pitch barb connecting nail comprises a rod-shaped nail body, and the lower end of the nail body forms a cone shape of which the tip part is an excessive arc shape; the entirety of the upper end of the nail body forms a molding cap head; the rod-shaped nail body forms a cone which shrinks to the lower end; the perisporium of the nail body is provided with a cone-shaped pitch barb structure; the cone-shaped pitch barb structure is combination of a plurality of small cones arranged in superposition mode in sequence from top to bottom, and the bottom face of the small cone is vertical to the length direction of the nail body; the edges of the upper bottom of all small cones are arranged in sequence from top to bottom to constitute a cone shape shrinking to the lower end of a rod body as a whole, and the cone shape is confirmed with the cone of which the entire rod-shaped nail body shrinks to the lower end; an sharp angle is formed between the upper bottom of the small cone and the side wall of the small cone, and the top end of the sharp angle points to the cap head direction and is reversed with the direction of a nail body plug-in installation hole. The cone-shaped pitch barb connecting nail has the advantages of easy plug-in of the installation hole, difficult withdrawing and firm connection with connected pieces; field assembly does not need any installation tools.

Description

Conical taper barb connecting nail

Technical field

The utility model relates to a kind of furniture link, relates in particular to assembling combination class furniture link.

Background technique

Folding assembling combination class furniture item can compress institute in a large number and take up space, and is convenient to the car and boat long-distance transport, is convenient to the short distance carrying of entering the room in shop into, also is convenient to packing, can reduce collision and wearing and tearing as far as possible.Link is the basic components of assembling combination class furniture, and link should suit to make things convenient for the requirement of on-site consolidation, without setting tool such as screwdriver, pliers, nails.For example, the connection of two boards body can adopt intersection male and female tenon in a row to connect, and sells into connecting nail at the joining portion, to increase the intensity of join strength, particularly tension stress.It is smooth shaft-like that the connecting nail of prior art is, and pin is gone into after after a while because differential deformation or be given a shock, loosening easily even deviate from.

Our company has applied for the utility model patent of " a kind of gradient barb connecting nail " in 2008, the nail of being close to the cap head on one's body the section perisporium be shaped on the gradient overhead structure, described gradient overhead structure is the combination of a plurality of its bottom surfaces that are arranged in order up and down cone vertical with nail body bar length direction, because the acute angle of the taper of gradient overhead structure points to cap head direction, the nail body injects the pilot nail hole easily, and be difficult to from the hole, withdraw from, be connected firmly with connected piece, can not become flexible, can not deviate from the pilot nail hole.In use, find that the nail body is the taper connection better effects if to the lower end reducing, simultaneously, it is also better that the assemblying body of the cone that its bottom surface that is arranged in order is vertical with nail body bar length direction constitutes taper on the whole.

The model utility content

The utility model is according to the developing direction of assembling combination furniture, meeting the market requirement is intended to design no instrument assembly unit link---a conical taper barb connecting nail, the characteristics that are connected firmly that cannot not have looseningly, do not deviate from, and on-the-spot installation easily, easy and simple to handle.

Structure the utility model conical taper barb connecting nail, its technological scheme is: comprise shaft-like nail body, it is the excessive taper of arc that the lower end of nail body is the tip, the upper end global formation cap head of nail body, the convex edge that described cap head holds all sides to cross out on one's body for nail; Described shaft-like nail body is the cone to the lower end reducing, is shaped on the conical taper overhead structure at nail body perisporium; Described conical taper overhead structure is a plurality of combinations of its bottom surface of stacked arrangement small cone body vertical with nail body bar length direction successively up and down, and each small cone body is to the following extreme direction reducing of nail body; All the edge of the upper base of small cone body is arranged in order the taper that also constitutes generally to the reducing of shaft lower end from top to down, and this taper is to the cone of lower end reducing with whole shaft-like nail body to be integrated mutually; Form pointed acute angle between the upper base of small cone body and the sidewall of small cone body, cap head direction is pointed at the tip of its acute angle, and the direction of inserting mounting hole with the nail body is opposite.

Going to the bottom of a last small cone body of described conical taper overhead structure overlaps with the upper base of adjacent next small cone body, to constitute a plurality of small cone bodies stacked arrangement successively up and down.

Described conical taper overhead structure or be produced on whole shaft-like nail body perhaps is produced on the epimere and the stage casing of shaft-like nail body.

Described nail body and cap head are made of metallic material.

The utility model is compared its useful effect with prior art and is: one, simple in structure being suitable for; They are two years old, pilot nail of the present utility model hole and the utility model coupling, because shaft of the present utility model is tapered, each gradient barb is tapered, all the gradient barb is also tapered on the whole, therefore following closely body inserts the pilot nail hole easily, and but difficulty is very big if will withdraw from, at this moment, the acute angle of barb cone is as stabbing hole wall as the fishbone, special because hole wall is wooden, the conical acute angle of barb can may cause destructive consequence when withdrawing from as thrusting hole wall as the fishbone; As seen, the utility model and connected piece are connected firmly, and can not become flexible, and can not deviate from the pilot nail hole; Its three, on-site consolidation is easy, quick, need not any setting tool.

Description of drawings

Fig. 1, the utility model structural representation;

Fig. 2, the utility model conical taper overhead structure schematic representation;

Schematic representation before inserting when Fig. 3, the utility model and connected piece are installed;

When installing, Fig. 4, the utility model and connected piece insert the back schematic representation.

Among the figure: 1, nail body, 11, the lower end, 2, the cap head, 3, the conical taper overhead structure, 31, small cone body, 32, upper base, 33, sidewall, 34, acute angle, 4, the pilot nail hole, 5, connected piece.

Embodiment

Below, introduce embodiment of the present utility model in conjunction with the accompanying drawings.

As shown in Figure 1, comprise shaft-like nail body 1, it is the excessive taper of arc that the lower end 11 of nail body 1 is the tip, the upper end global formation cap head 2 of nail body 1, the convex edge that described cap head 2 crosses out for all sides in nail body 1 upper end; Described shaft-like nail body 1 is the cone to lower end 11 reducings, is shaped on conical taper overhead structure 3 at nail body 1 perisporium; Described conical taper overhead structure 3 is a plurality of combinations of its bottom surface of stacked arrangement small cone body 31 vertical with nail body 1 bar length direction successively up and down, and each small cone body 31 is to the lower end 11 direction reducings of nail body 1; All the edge of the upper base 32 of small cone body 31 is arranged in order the taper that also constitutes generally to shaft 1 lower end, 11 reducings from top to down, and this taper is to the cone of lower end 11 reducings with whole shaft-like nail body 1 to be integrated mutually; 33 of the upper base 32 of small cone body 31 and the sidewalls of small cone body form pointed acute angle 33, and cap head 2 directions are pointed at the tip of its acute angle 33, and the direction of inserting mounting hole with nail body 1 is opposite;

Going to the bottom of a last small cone body 31 of described conical taper overhead structure 3 overlaps with the upper base 32 of adjacent next small cone body 31, to constitute a plurality of small cone bodies 31 stacked arrangement successively up and down.

Described conical taper overhead structure 3 or be produced on whole shaft-like nail body 1 perhaps is produced on the epimere and the stage casing of shaft-like nail body 1.

Described nail body 1 and cap head 2 usefulness metallic material are made.

Fig. 2,3 is depicted as the situation that the utility model is connected two connected pieces 5, in factory the pilot nail hole 4 on the connected piece 5 is bored before the on-site consolidation, during on-site consolidation, 5 pairs of good positions of two connected pieces just, make pilot nail hole 4 relative one by one, again conical taper barb connecting nail of the present utility model is inserted pilot nail hole 4.On-site consolidation is easy, quick, need not any setting tool.

Above-mentioned mode of execution only is preferred embodiment of the present utility model.The technician of these ranks is under the guidance or inspiration of technical solutions of the utility model; can make some improvement or modification; for example; whole tapering of the present utility model is variable; 33 sizes that form pointed acute angle 33 of the upper base 32 of small cone body 31 and the sidewall of small cone body also are variable; also can there be multiple choices etc. at the concrete position that conical taper overhead structure 3 is arranged at nail body 1, and these all are the scopes of the utility model protection.

Claims

1, conical taper barb connecting nail, comprise shaft-like nail body (1) in the structure, it is the excessive taper of arc that the lower end (11) of nail body (1) is the tip, the upper end global formation cap head (2) of nail body (1), the convex edge that described cap head (2) crosses out for all sides in nail body (1) upper end; It is characterized in that: described shaft-like nail body (1) is the cone to lower end (11) reducing, is shaped on conical taper overhead structure (3) at nail body (1) perisporium; Described conical taper overhead structure (3) is a plurality of combinations of its bottom surface of stacked arrangement small cone body (31) vertical with nail body (1) bar length direction successively up and down, and each small cone body (31) is to lower end (11) the direction reducing of nail body (1); All the edge of the upper base (32) of small cone body (31) is arranged in order the taper that also constitutes generally to shaft (1) lower end (11) reducing from top to down, and this taper is to the cone of lower end (11) reducing with whole shaft-like nail body (1) to be integrated mutually; Form acute angle (33) between the upper base (32) of small cone body (31) and the sidewall (33) of small cone body, cap head (2) direction is pointed at the tip of its acute angle (33).

2, the conical taper barb connecting nail of narrating according to claim 1, it is characterized in that: going to the bottom of a last small cone body (31) of described conical taper overhead structure (3) overlaps with the upper base (32) of adjacent next small cone body (31), to constitute a plurality of small cone bodies (31) stacked arrangement successively up and down.

3, the conical taper barb connecting nail of narrating according to claim 1 is characterized in that: described conical taper overhead structure (3) or be produced on whole shaft-like nail body (1) perhaps is produced on the epimere and the stage casing of shaft-like nail body (1).

4, the conical taper barb connecting nail of narrating according to claim 1 is characterized in that: described nail body (1) and cap head (2) are made of metallic material.