CN2085000U

CN2085000U - Expanding nail

Info

Publication number: CN2085000U
Application number: CN 90225585
Authority: CN
Inventors: 俞海宏
Original assignee: Individual
Current assignee: Individual
Priority date: 1990-12-02
Filing date: 1990-12-02
Publication date: 1991-09-18

Abstract

The utility model relates to a fastener expansion nail used in a wall, which is composed of a nail bar, a sleeve pipe and an expansion tube, wherein, the middle of the star-shaped expansion tube is provided with through holes, on end of the expansion tube is a big cylindrical hole, and the other end of the expansion tube is a small cylindrical hole; besides, the middle of the expansion tube is provided with (or without) a conical hole. A wall on one end of the small cylindrical hole is provided with four pieces of open grooves, the nail bar penetrates through the sleeve pipe and the expansion tube, and the walls of the open grooves arranged on the end of the expansion tube are expanded towards the circumference; besides, the expansion of the walls is driven by the nail bar forced by a hammer, the nail bar, the sleeve pipe and the expansion tube are integrated, and the purpose of fastening is realized. The utility model has the advantages of simple structure, easy manufacture and low cost, the wood is saved, and the construction progress is accelerated; the expansion nail is firm and reliable, and the utility model is mainly used for connecting the wall with a door and a window.

Description

Expanding nail

The utility model relates to a kind of bloated nail of fastening piece that is used in the wall, is mainly used in the binding of Door and window frame and body of wall.

" unit's nail " construction method is adopted in the binding of general wooden Door and window frame and body of wall, traditional technological method custom, promptly doorframe will be in the body of wall of edge pre-buried 50 * 50 * 150mm ³4 of wooden units as pad brick wood, and then doorframe is fixed on the pad brick wood with unit's nail, build the pre-buried wood that a building building just need be a lot, like this will expensive timber, and this method of construction also causes the loosening of door and window easily, and safety provides the chance of committing a crime to stealer inadequately.

The patent No. 89204742.9 " axial plug EXPANSION ANCHOR BOLTS " has just solved above-mentioned problem, but all characteristics is arranged respectively, uses in different occasions.

The purpose of this utility model is to provide a kind of bloated nail, and it is simple in structure, easily processing, and cost is low, and is safe in utilization, links firmly, can save timber, improved speed of application again.

The utility model is to realize like this, the nail that expands is made up of expand tube, nail bar, sleeve pipe, through hole is arranged in the middle of the expand tube, one end is the big column hole, and an end is a small cylindrical opening, and middle is taper hole (or not having taper hole), opening slot more than two is arranged on the wall of small cylindrical opening one end, the nail bar passes sleeve pipe, expand tube, and its binding is in aggregates, and spreading.

Fig. 1, structural representation of the present utility model.

Fig. 2, bloated other the part enlarged view of following closely.

Below in conjunction with accompanying drawing embodiment of the present utility model is further described:

Nail bar (1) is

Shape, head can be shapes such as disk, square plane, hexaplanar, and afterbody does not have taper (yet can be taper) sleeve pipe (2) and is elongate tubular, and an end is the big column hole, and an end is a small cylindrical opening.Expand tube (3) is Shape, there is through hole the centre, and an end is the big column hole, and an end is a small cylindrical opening, and the centre is a conical bore, and (also can make 3 * 30 ° chamfering, no taper hole) has 4 opening slots on the wall of small cylindrical opening one end, and material can be metal or engineering plastics.

Use this nail that expands with doorframe and body of wall fixedly the time, only need with percussion drill in body of wall and the corresponding local boring of wooden frame, hole depth in body of wall does not surpass the length of expand tube, at this moment sleeve pipe (2) is enclosed within on the outer wall of expand tube (3) imperforation groove one end, put into together in the hole of having bored, to follow closely bar (1) again puts in sleeve pipe (2) and the expand tube (3), up to not pushing away forward to extremely, at this moment hit with a hammer again and follow closely the termination of bar (1), force nail bar (1) to advance, end face up to nail bar (1) contacts with wooden frame to extremely, at this moment follows closely the opening cell wall radiate out that bar (1) makes expand tube (3) end, reaches fastening purpose.

The utility model compared with prior art, simple in structure, easy processing, cost are low, saved valuable timber resources, accelerated again construction speed, because of firm durable in use, the loosening phenomenon of wooden frame just can not take place, stopped up the crime chance of stealer, improve security reliability, except the binding that is used for Door and window frame and body of wall, also can be used for the binding of other object and body of wall.

Claims

1, the fastening piece in a kind of wall expands and follows closely, and is made up of nail bar (1), sleeve pipe (2), expand tube, it is characterized in that expand tube (3) is

Shape, there is through hole the centre, and an end is the big column hole, and an end is a small cylindrical opening, and middle have the opening slot more than two for conical bore (or not having taper hole) on the wall of small cylindrical opening one end, and nail bar (1) passes sleeve pipe (2), expand tube (3) links in aggregates and spreading with it.