CN1102461A

CN1102461A - Expansion nut

Info

Publication number: CN1102461A
Application number: CN 94106109
Authority: CN
Inventors: 易育宁
Original assignee: Individual
Current assignee: Individual
Priority date: 1994-05-29
Filing date: 1994-05-29
Publication date: 1995-05-10

Abstract

The expansion nut for fastening brick and stone materials features that a conic nut is sleeved by an expansible metallic tube, which are inserted in a hole on said material. On fastening, the conic not presses the expansible tube to make the tube expand, so it is fixed to brick or stone firmly.

Description

Expansion nut

The invention discloses a kind of novel fastening nut, it can be used between the object of brick, stone material or and other object between be fastenedly connected.

Existing setscrew is in the eyelet of filling in be with one the one expansible tubular metal body of end on an end has the screw rod of tapering after on the object of brick, stone material, screw rod one end has the part extrusion metal tubular body of tapering to make it to be out of shape in the eyelet outer wall is clamp-oned the object of brick, stone material thus, after this be tightened on the screw rod by nut, strengthen the extruding force between the screw rod conical surface and the tubular body, thereby the reinforcement tubular body is strutted the trend in the object of partly clamp-oning brick, stone material.

After setscrew was clamp-oned the object of brick, stone material, its screw rod or fastening back screw nut that is exposed that exposes one section took up room too big; And when the fastening same object of two or more setscrews, the institute's perforation on the fastened object will be inserted on the screw rod of all setscrews simultaneously, can give moving the location and having brought certain difficulty of weight and larger-size fastened object thus; Particularly when two or more setscrews tighten on two or more planes of fastened object, want the institute's perforation on the fastened object is inserted on the screw rod of all setscrews, its difficulty is sizable; Therefore, be difficult to than the fastening of each several part between the complex objects than complex objects or to forming with setscrew is fastening.

Task of the present invention provides that a kind of fastening strength is big, durability is long, can be used for brick, the stone material object of fastening complexity or forms complicated brick, the fastening expansion nut between the stone material object; It is simple and easy that it has fastening operation, the smooth characteristics such as attractive in appearance of fastening back outer surface.

Task of the present invention is finished as follows: after being inserted in one the one expansible tubular metal body of end on the metal column body that tapering arranged, fill in the eyelet that brick, stone material object be provided with, the application of force is pressed into the outer surface that makes it in the hole with brick, stone material object and puts down partly exposing the tubular metal body hole outside then, the strutted part of tubular metal body presses to the tapering face on the metal column body thus, struts tubular body by the reaction force that produces on the tapering face it is clamp-oned in brick, the stone material object; Push down tubular body and having when screwing on the screw that is provided with on the metal column body of tapering when a screw, strengthened the extruding force between tapering face and the tubular body, strutted part and clamp-on trend in brick, the stone material object thereby strengthened tubular body.

The invention will be further described below in conjunction with accompanying drawing:

Accompanying drawing is the fastening structure schematic representation of expansion nut:

Fill in brick after having the metal column body [1] of tapering to be with tubular metal body [2] among the figure, in the eyelet [10] that stone material object [11] is provided with, the outer end [3] of tubular body [2] is pressed into brick, eyelet on the stone material object [10] is interior until outer end [3] and brick, the outer surface of stone material object [11] is flat, tapering face on cylindrical body this moment [1] struts tubular body [2] clamp-ons brick, in the stone material object [11], after spiral shell eye [9] that eyelet [8] on the object that will install [4] and cylindrical body [1] are provided with aligns, load onto pad [5], spring washer [7], screw [6] is screwed in the spiral shell eye [9], when making the object [4] that to install push down the outer end [3] of tubular body [2], screw [6] is outwards strained cylindrical body [1], make it further to strut tubular body [2], the quilt of having strengthened tubular body [2] struts part and clamp-ons brick, trend in the stone material object [11].

During enforcement: corrosion resistant materials such as available stainless steel are made cylindrical body [1], tubular body [2], pad [5], screw [6], spring washer [7], to reach nonvolatil fastening purpose, screw [6] screws the back, and it stretches into end face and should not touch mutually with other object, and the exterior edge face of cylindrical body [1] also should keep not touching mutually with other object simultaneously.

Claims

1, a kind of expansion nut of forming by tubular metal body and metal column body of having tapering etc., it is characterized in that: having on the metal column body [1] of tapering has a screw [9], and an end of this screw [9] is on the less end face in metal column body [1] cross section that has tapering.

2, expansion nut according to claim 1 is characterized in that: tubular metal body [2] is to be inserted in from the less end in metal column body [1] cross section that has tapering.