CN2063181U - Expansion nut - Google Patents

Abstract

The utility model relates to a novel expansion bolt fastened in buildings, which is characterized in that a pipe core 4 is sheathed in a thin-wall expansion pipe 3 of which one end is uniformly distributed with a plurality of grooves. The inner diameter of the pipe core is provided with a screw thread through hole. One end of the outer diameter of the pipe core is column-shaped, and the other end is cone-shaped. A bolt 1 sheathed with a gasket 2 is screwed in the pipe core 4. The utility model has the advantages of simple structure and convenient production. When the expansion bolt is used for installing and clamping objects in buildings, only a bolt head is exposed outwards, which is not only beautiful, but also does not hurt people. Furthermore, articles of various shapes are convenient to install and clamp owing to the cap of the expansion bolt is in various shapes.

Description

Expansion nut

The utility model belongs to a kind of novel Expansion bolt in engineering device technology field, is specially adapted to tighten different object at building.

At present, known Expansion bolt is EXPANSION ANCHOR BOLTS again, its structure is to be with a thin-walled expand tube on the bolt, bolt is to be threaded by Cylinder one end, the other end is that a cone constitutes, one end of expand tube is evenly opened several grooves along garden week, this end abuts against the conical end of bolt, there are packing ring, nut in screw thread place at bolt, during use, in building, beat nest, in nest, put into this EXPANSION ANCHOR BOLTS then according to the screw sizes of choosing, need are installed thing and gasket sleeve on bolt again, and tightly twist with nut.This EXPANSION ANCHOR BOLTS Chang Yin back bolt head long people that damages that is easy to that is exposed that is installed, simultaneously not attractive in appearance yet, more difficult is since the shape and structure of the thing that is installed limit inconvenient with nut screwing clamping, so using scope is very narrow.

The purpose of this utility model is the deficiency that overcomes in the known technology, provides a kind of and prevents to hurt sb.'s feelings and attractive in appearance, and be suitable for the be installed novel Expansion bolt of thing of the different shape that is installed.

The purpose of this utility model is achieved by the following scheme:

Opening the thin-walled expand tube of several grooves equably along garden week in, one one end is with a tube core, the internal diameter of tube core is a tapped through hole, its external diameter one end is the garden column, the other end is the garden taper, the garden styletable of tube core is enclosed within the expand tube, expand tube is higher than tube core behind the suit, and the fluting end of expand tube abuts against the tube core conical end, is screwed with the screw that is with packing ring in the screw of tube core.Screw cap can be the screw of different shapes such as square, hexagon, T shape, countersunk head, interior six sides, interior four directions.The material of expanding nut can be metal or engineering plastics.

The utility model has the advantages that: use the utility model can be according to the total long dozen nest behind expand tube and the tube core suit in building, to be installed, what be exposed after thing installs only is a screw cap again, attractive in appearance so first, second be difficult for hurting sb.'s feelings, simultaneously can select suitable screw cap for use for the different thing that is installed, be convenient to tighten and be installed, thereby enlarged the using scope of expanding nut.

Description of drawings:

Fig. 1 is a schematic representation of the present utility model;

Fig. 2 is that the utility model uses schematic representation by dress.

In conjunction with the accompanying drawings embodiment of the present utility model is described in further detail.

Expand tube 3 is thin-wall tube-shaped pipes, this Guan Yiduan locates evenly to have several grooves along garden week, a tube core 4 is arranged in the expand tube, tube core is a threaded pipe of endoporus, and its external diameter one end is the garden column, and the other end is the garden taper, the garden styletable of tube core is enclosed within the expand tube, expand tube is higher than tube core behind the suit, and the fluting end of expand tube abuts against tube core garden awl end, is screwed with the screw 1 that is with packing ring 2 in the screw of tube core 4.

As long as tighten screw 1 during use, just tube core 4 moved to the screw cap direction with screw threads turn-off beginning, and make the expand tube distending, thereby this expanding nut is fixed tightly in the building with its tapering end.

Claims (3)

1, a kind of expanding nut that is fastened on the object of being convenient in the building to be installed, it includes at one end along the thin-walled expand tube of garden several grooves of Zhou Junbu and be with a tube core in expand tube, the internal diameter that it is characterized in that tube core is a tapped through hole, its external diameter one end is the garden column, the other end is the garden taper, and the garden styletable of tube core is enclosed within the expand tube, and expand tube is higher than tube core behind the suit, the fluting end of expand tube abuts against tube core garden awl end, is screwed with the screw that is with packing ring in the screw of tube core.

2, expanding nut according to claim 1, the shape that it is characterized in that screw cap can be the screws of different shapes such as square, interior six sides, T shape, countersunk head, interior six sides.

3, according to claim 1,2 described expanding nut, the material that it is characterized in that expanding nut can be metal or engineering plastics.