CN214092639U - Fastening nail - Google Patents

Abstract

The utility model discloses a fastening nail belongs to the nail field, solves traditional fastening nail insecure and part large in quantity, problem with high costs. The fastening nail comprises a pipe body, wherein a plurality of convex teeth are arranged on the outer wall of the pipe body, and a contraction opening arranged along the axial direction of the pipe body is formed in the pipe body. The utility model discloses a binding nail for when the nail fastening, can effectively reduce part quantity, reduce the cost of manufacture, easy to assemble.

Description

Fastening nail

Technical Field

The utility model relates to a nail, more specifically say, it relates to a binding nail.

Background

Nails refer to hard metals in the form of a pointed tip used as part fasteners, such as: nails, screws, etc., are widely used in various fields. In order to make firmer, stable that the binding nail connects, also appeared at present a large amount of inflation nails, it comprises a plurality of parts, when using, puts into the great mounting hole in aperture with the inflation cover, then uses the inflation nail to squeeze into in the inflation cover, makes the inflation cover rise to open and tightly bites the mounting hole to realize the fastening of binding nail. However, the expansion nail of the type has a plurality of parts, large manufacturing cost and relatively complicated installation process. Therefore, there is a need to develop a new type of fastening nail.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is not enough to the above-mentioned of prior art, a binding nail is provided for when the nail fastening, can effectively reduce part quantity, reduce the cost of manufacture, easy to assemble.

The technical scheme of the utility model is like this: the fastening nail comprises a pipe body, wherein a plurality of convex teeth are arranged on the outer wall of the pipe body, and a contraction opening arranged along the axial direction of the pipe body is formed in the pipe body.

As a further improvement, the convex teeth are oblique teeth which are obliquely arranged from bottom to top, and a contraction hole matched with the convex teeth is formed in the pipe body corresponding to each convex tooth.

Furthermore, the circumferential width of the convex teeth is 2-4 mm, the axial height of the convex teeth is 2-4 mm, and the maximum protrusion height of the convex teeth is 0.45-0.65 mm.

Further, two adjacent convex teeth are arranged in a staggered mode in the vertical direction.

Furthermore, the contraction openings penetrate through two ends of the tube body.

Further, the diameter of the bottom of the tube body is gradually reduced.

Further, the top of the pipe body is also provided with a top cap.

Advantageous effects

Compared with the prior art, the utility model, have following advantage:

the utility model discloses a binding nail is a hollow structure's body, and sets up shrink mouth and dogtooth on the body, when the in-service use, use the instrument with the body beat into the mounting hole that the diameter is less than the body diameter, because be interference fit between mounting hole and the body, the shrink mouth shrink of body to rely on the better elasticity of body self, make the outer wall of body firmly paste and prop up the mounting hole tightly, increase frictional force, cooperate the dogtooth to bite tight mounting hole inner wall simultaneously, when making the nail fastening, can effectively reduce part quantity, reduce the cost of manufacture, easy to assemble; and because the fastening nail is an elastically contracted nail, compared with the traditional expansion nail, the expansion nail can be suitable for fastening parts with lower fastening material density, and the damage to the parts is effectively reduced.

Drawings

Fig. 1 is a schematic front view of embodiment 1 of the present invention;

fig. 2 is a schematic side view of embodiment 1 of the present invention;

fig. 3 is a schematic view of an expanded structure of a tube body in embodiment 1 of the present invention;

fig. 4 is a schematic front view of embodiment 2 of the present invention;

fig. 5 is a schematic bottom view of embodiment 2 of the present invention.

Wherein: 1-tube body, 2-convex teeth, 3-shrinkage mouth and 4-top cap.

Detailed Description

The invention will be further described with reference to specific embodiments shown in the drawings.

Example 1

Referring to fig. 1-3, the utility model discloses a fastening nail, including body 1, body 1 is hollow structure's pipe, and for elastic stainless steel material, is equipped with a plurality of protruding teeth 2 at 1 outer wall of body, and sets up along the shrink mouth 3 of its axial arrangement on body 1 for body 1 has certain shrink elasticity.

The utility model discloses a fastening nail is a hollow structure's body 1, and sets up constriction 3 and protruding tooth 2 on the body 1, when in actual use, use tool knocks body 1 into the mounting hole that the diameter is less than body 1 diameter, because be interference fit between mounting hole and the body 1, the constriction 3 shrink of body 1 makes the outer wall laminating of body and props up the mounting hole tightly, increases friction, cooperates protruding tooth 2 to bite tight mounting hole inner wall simultaneously, when making the nail fastening, can effectively reduce part quantity, reduce the cost of manufacture, easy to assemble; and because the fastening nail is an elastically contracted nail, compared with the traditional expansion nail, the expansion nail can be suitable for fastening parts with lower fastening material density, and the damage to the parts is effectively reduced.

Preferably, protruding tooth 2 is the skewed tooth that leans out from bottom to top and arranges, and through punching press and formation on body 1, has certain elasticity, prevents the problem that the fastening nail deviate from, and all offer the shrinkage cavity with 2 looks adaptations of protruding tooth on the body 1 that every protruding tooth 2 corresponds, provides the space of stepping down for protruding tooth 2 is extruded the shrink.

Preferably, the circumferential width of the convex teeth 2 is 2 mm-4 mm, the axial height of the convex teeth 2 is 2 mm-4 mm, and the maximum protruding height of the convex teeth 2 is 0.45 mm-0.65 mm, so that the pipe body 1 can be conveniently knocked into the mounting hole while the fastening is ensured.

Preferably, two adjacent convex teeth 2 are arranged in a staggered manner in the up-down direction, so that the convex teeth 2 are tightly bitten on different vertical lines of the inner wall of the mounting hole, and the fastening performance is further improved.

Preferably, shrink mouth 3 runs through the both ends of body 1, guarantees that whole body 1 all possesses elastic shrinkage to make the whole outer wall of body 1 all laminate to prop tightly at the mounting hole inner wall, further improve the fastening.

Preferably, the diameter of the bottom of the pipe body 1 is gradually reduced, so that the pipe body 1 can be conveniently inserted into the mounting hole, and the guide effect on the pipe body 1 during mounting is realized.

Example 2

Referring to fig. 4-5, for another embodiment of the present invention, this embodiment is substantially the same as embodiment 1, except that a top cap 4 is further disposed on the top of the pipe body 1, and the top cap 4 can be used to press the component, so as to further improve the connection firmness of the component and prevent the component from loosening.

Preferably, be integrated into one piece's structure between hood 4 and the body 1, the preparation of being convenient for makes to be connected more firmly between body 1 and the hood 4 simultaneously.

Preferably, the top cap 4 and the pipe body 1 can be connected in a riveting mode, so that the pipe is convenient to manufacture and use on site.

The above is only the preferred embodiment of the present invention, and it should be noted that for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which will not affect the utility model and the utility of the patent.

Claims (7)

1. The fastening nail is characterized by comprising a pipe body (1), wherein a plurality of convex teeth (2) are arranged on the outer wall of the pipe body (1), and a contraction opening (3) arranged along the axial direction of the pipe body (1) is formed in the pipe body (1).

2. A fastening nail according to claim 1, wherein the teeth (2) are inclined teeth arranged obliquely outward from bottom to top, and each tube (1) corresponding to the teeth (2) is provided with a shrinkage cavity adapted to the teeth (2).

3. A fastening pin according to claim 2, characterized in that the circumferential width of the teeth (2) is 2mm to 4mm, the axial height of the teeth (2) is 2mm to 4mm, and the maximum protrusion height of the teeth (2) is 0.45mm to 0.65 mm.

4. A fastening pin according to claim 1, wherein two adjacent teeth (2) are arranged in a vertically offset manner.

5. A fastening pin according to claim 1, characterized in that the constrictions (3) extend through both ends of the tubular body (1).

6. A fastening pin according to claim 1, characterized in that the diameter of the bottom of the tubular body (1) is gradually reduced.

7. A fastening pin according to any one of claims 1-6, characterized in that the top of the tubular body (1) is provided with a top cap (4).

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