CN210067059U

CN210067059U - Bidirectional barbed nail

Info

Publication number: CN210067059U
Application number: CN201920673581.3U
Authority: CN
Inventors: 李强; 王栋; 聂立果; 梅江伟; 裴红烈
Original assignee: CITIC Construction Co Ltd
Current assignee: CITIC Construction Co Ltd
Priority date: 2019-05-13
Filing date: 2019-05-13
Publication date: 2020-02-14
Anticipated expiration: 2029-05-13

Abstract

The utility model relates to a two-way barb nail belongs to construction accessory technical field. The middle of the bidirectional barb nail is a nail disc, two sides of the nail disc are respectively a long nail and a short nail, and a plurality of barbs are respectively arranged on the long nail and the short nail. The utility model discloses a two-way barbed nail is used for the cast in situ construction of self preservation temperature exterior sheathing, effectively strengthens the combination between the facing screed-coat of building, self preservation temperature template layer and the cast-in-place concrete layer three, makes the outer wall face of building more stable, is difficult for droing.

Description

Bidirectional barbed nail

Technical Field

The utility model relates to a building construction accessory technical field, concretely relates to two-way barb nail.

Background

In the construction process of modern buildings, the self-insulation external formwork is more and more widely applied due to the advantages of heat insulation, fire prevention, non-dismantling and the like, and when the self-insulation external formwork is used for wall pouring, a connecting piece is generally required to be embedded into the self-insulation external formwork and poured into a cast-in-place concrete layer. Most of the existing embedded connecting pieces are nail-shaped connecting pieces and can only play a role in connecting the heat-insulation outer template with a cast-in-place concrete layer. The outer side wall of the self-insulation outer formwork is required to be plastered and leveled for attractiveness and is decorated, and the plastering and leveling layer is completely fixed on the self-insulation outer formwork through the adhesive force of cement, so that the self-insulation outer formwork has the risk of falling off after being blown by wind and exposed to the sun for a long time.

Disclosure of Invention

For solving the problem that exists among the above-mentioned prior art, the utility model designs a can strengthen two-way barb nail of plastering screed-coat, self preservation temperature external form board layer and cast-in-place concrete layer three's the connection of building wall body simultaneously, the centre of two-way barb nail is the nail dish, the nail dish is circular or square, the both sides of nail dish are long nail portion and short nail portion respectively, it has many barbs to arrange respectively in long nail portion and the short nail portion. The long nail part is longer, and the length of the long nail part is determined according to the thickness of the selected self-insulation external formwork plate, generally more than 10Cm, and is used for being connected with the self-insulation external formwork layer and the cast-in-place concrete layer. The short nail part is shorter and is generally 1-1.5 cm and used for connecting the self-insulation outer formwork layer and the plastering leveling layer, the long nail part is firstly nailed into the self-insulation outer formwork which is completely supported during use, concrete pouring is carried out, after wall construction is completed, plastering leveling is carried out on the wall surface outside the self-insulation outer formwork, and the short nail part is completely buried in the plastering leveling layer.

Furthermore, the short nail part and the long nail part are integrally formed with the nail disc, and a plurality of short columns are arranged on one side of the short nail part of the nail disc. Because the nail plate of the bidirectional barbed nail is made of nylon materials and has a smooth surface, cement mortar is difficult to adhere to the nail plate when plastering and leveling, and the short column plays a role in increasing the adhesive force of the cement mortar.

Furthermore, the long nail part and the nail plate are integrally formed, the short nail part is connected with the nail plate in an inserting mode, the nail plate extends towards the long nail part to form an inserting hole, a clamping groove is formed in the inserting hole, the short nail part is provided with an inserting part matched with the inserting hole, and a protruding block matched with the clamping groove is arranged on the outer side of the inserting part. The two-way barbed nails are designed into two parts for splicing, so that the long nail part is nailed into the self-heat-preservation outer formwork when concrete is poured, and the short nail part is inserted when plastering is performed for leveling, so that the short nail part is prevented from being exposed outside to be unchanged to construction or being damaged before plastering is not performed for leveling.

Furthermore, the long nail part is provided with an expansion opening at the insertion hole section. Because the general barbed nails are inserted into the self-insulation outer formwork, holes are punched in the positions, which need to be inserted, of the self-insulation outer formwork in advance, the size of the punched holes is slightly larger than that of the bidirectional barbed nails, and therefore the bidirectional barbed nails can rotate in the holes, which are punched in the self-insulation outer formwork in advance, and are not stable. And an expansion opening is designed at the jack section of the long nail part, so that the size ratio of the clamping groove is smaller than that of the projection of the insertion part of the short nail part, and the jack section of the long nail part can be expanded to be thick after the short nail part is inserted, and the stability of the long nail part in the self-insulation outer template layer is further improved.

Furthermore, the spike part is provided with two sections of barb sections, one section is positioned at the top of the spike part, and the other section is positioned at the middle rear part of the spike part. The barb section at top is used for connecting cast-in-place concrete layer, and the barb section at middle and rear portion is used for connecting self preservation temperature exterior sheathing layer.

Compared with the prior art, the bidirectional barbed nail has the advantages that firstly, the bidirectional barbed nail simultaneously has the function of strengthening the connection among a plastering leveling layer, a self-heat-preservation external template layer and a cast-in-place concrete layer of a building wall; moreover, a plurality of short columns are designed on the outer side of the nail plate, so that the bonding force of cement mortar for leveling and plastering and the nail plate is effectively increased; in addition, the short nail part and the long nail part are designed to be in a split plug-in type, so that the convenience of construction is improved.

Drawings

FIG. 1 is a schematic structural diagram of a first embodiment of the present invention

FIG. 2 is a schematic structural diagram of a second embodiment of the present invention

FIG. 3 is a schematic structural diagram of a third embodiment of the present invention

FIG. 4 is a schematic cross-sectional view of a third embodiment of the present invention

In the figure: 1 nail plate, 2 short nail parts, 3 long nail parts, 4 barbs, 5 short columns, 11 jacks, 12 clamping grooves, 21 insertion parts and 22 convex blocks

Detailed Description

The invention will be further described with reference to the accompanying drawings and specific embodiments.

Example one

As shown in fig. 1, the first embodiment of the bidirectional barbed nail of the present invention is a bidirectional barbed nail, which is composed of a nail disk 1 and short nail portions 2 and long nail portions 3 on both sides of the nail disk, wherein the nail disk 1 is circular, and can be made into other shapes such as square, triangle, etc. Three integrated into one piece forms by the preparation of nylon materials, all is equipped with the barb 4 of multirow on staple portion 2 and the spike portion 3, wherein divide into two sections at the barb 4 of spike portion 3, lies in the top and the middle and back portion of spike portion 3 respectively. The short nail part 2 is 1cm long, and the long nail part 3 is 10cm long.

Example two

As shown in fig. 2, the present invention relates to a two-way barbed nail of a second embodiment, embodiment 2 is different from embodiment 1 in that the nail plate 1 is provided with a plurality of small short columns 5 on one side of the short nail portion 2. The studs 5 effectively increase the contact area of the surface of the nail plate 1 with the plastering screed. Here, the studs 5 can be replaced by other designs which can increase the contact area, such as grid-shaped protrusions.

EXAMPLE III

As shown in fig. 3 and 4, the utility model relates to a three kinds of embodiments of a two-way barbed nail, embodiment 3 lie in the connection design of components of a whole that can function independently plug-in type with adopting between the nail dish 1 with short nail portion 2 with embodiment 2, extend to spike portion 3 on nail dish 1 and form jack 11, the inboard of jack 11 is equipped with draw-in groove 12, draw-in groove 12 forms protrudingly in spike portion 3's outside, spike portion 3 is equipped with the mouth that expands in one section that is equipped with jack 11. The lower part of the short nail part 2 is provided with an insertion part 21, the size of the insertion part 21 is the same as that of the insertion hole 11, the outer side of the insertion part 21 is provided with a convex block 22, the size of the convex block 22 is slightly larger than that of the clamping groove 12, and the insertion part 21 can expand the expansion opening of the long nail part 3 after being forcibly inserted into the insertion hole 11, so that the section of the insertion hole 11 of the long nail part 3 becomes thick.

The above description is only for the preferred embodiment of the present invention, and should not be taken as limiting the scope of the invention, which is defined by the appended claims and the description of the invention.

Claims

1. The utility model provides a two-way barb nail which characterized in that, the centre of two-way barb nail is the nail dish, the both sides of nail dish are long nail portion and short nail portion respectively, it has many barbs to arrange respectively in long nail portion and the short nail portion.

2. The bi-directional barbed nail according to claim 1, wherein the short nail portion and the long nail portion are formed integrally with a nail plate, and a plurality of small short columns are provided on one side of the short nail portion of the nail plate.

3. The bi-directional barbed nail according to claim 1, wherein the long nail portion is integrally formed with the nail plate, the short nail portion is inserted into the nail plate, the nail plate extends into the long nail portion to form an insertion hole, a clamping groove is formed in the insertion hole, the short nail portion is provided with an insertion portion adapted to the insertion hole, and a projection adapted to the clamping groove is formed on the outer side of the insertion portion.

4. The bi-directional barbed nail according to claim 3, wherein the long nail portion is provided with an expansion port at the receptacle section.

5. The bi-directional barbed nail according to any one of claims 1, 2, 3 and 4, wherein the spike portion is provided with two barbed sections, one at the top of the spike portion and the other at the middle rear portion of the spike portion.