CN2132015Y

CN2132015Y - Multifunction expansion bolt

Info

Publication number: CN2132015Y
Application number: CN 92205294
Authority: CN
Inventors: 陈国建
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-03-24
Filing date: 1992-03-24
Publication date: 1993-05-05
Anticipated expiration: 2002-03-24

Abstract

Disclosed is a multifunction expansion bolt used for fastening components or used as inserting nuts, which comprises an expansion bolt (1), an expansion core bar (2) and a rod with punch core. The upper part of the expansion bolt is provided with a cap (4); the tail end (5) of the expansion bolt is provided with a cross opening; the center of the expansion bolt is provided with a core hole (6) with cylindrical screw threads; the rod with punch core (3) can be provided with screw threads and can also not be provided with screw threads; when the rod with punch core (3) is inserted along the core hole (6) and the expansion core bar (2) is pushed in a wall, the tail end expands with fastening function; besides, the utility model can used as built-in nuts to pre-bury in walls; screw rods in different shapes are screwed in, different installing fixed functions work.

Description

Multifunction expansion bolt

A kind of multifunctional expanded bolt can be used for clamp structure, also can be used as the EXPANSION ANCHOR BOLTS that embedded nut uses.

Plastic in the market EXPANSION ANCHOR BOLTS is not durable because of being subjected to the easily aging influence of plastics, and is not firm, and existing metal EXPANSION ANCHOR BOLTS, structure is complicated mostly, the cost height, and can not use as embedded nut.

The utility model to provide exactly a kind of simple in structure, cost is low, easy to use, both can be used for clamp structure, again the EXPANSION ANCHOR BOLTS that can use as embedded nut.

The utility model " multifunctional expanded bolt " is to make like this: the top of metal garden cylindricality expansion key (1) is the diameter cap bigger than its diameter (4), the tail end (5) of expansion key (1) has the long cross gap of 5～10mm, the center of expansion key has a threaded core hole (6), the cross gap UNICOM of core hole (6) and tail end (5), expansion core bar (2) is the internal diameter little 0.2mm of a diameter than core hole (6), the Cylinder of band sharp cone distal head, towards core bar (3) is a threaded Cylinder, it can be entered by spinning from core hole (6), thereby expansion core bar (2) is headed within the walls, make tail end (5) expansion of expansion key and reach fastening purpose.Can make the Cylinder of diameter towards core bar (3) than the little 0.2mm of internal diameter of core hole (6), it is thrown into from core hole (6), head within the walls thereby promote expansion core bar (2), the tail end (5) of expansion key (1) is expanded, played fastening, tamper, antitheft effect.If when multifunctional expanded bolt is used as embedded nut, just multifunctional expanded bolt is directly squeezed within the walls and preset, get final product taking out towards core bar (3) as embedded nut.As mix difform bolt, can do the fastening of different purposes members.If desired with multifunctional expanded disassembling bolts, the core bar (2) that only need just expand is broken through the tail end (5) of expansion key (1), gets final product with drawing the pin device that expansion key (1) is pulled out then.Only need cap (4) drilling to be fallen to get final product during dismounting with electric drill.

The utility model " multifunctional expanded bolt " be applicable to brick, watt, the fastening installation on the member of cement, wood structure etc. or make embedded nut and use, it has the saving of labor, saves time, cost is low, and does not hinder metope and member, can tamper, antitheft.So use easily, very high use value arranged.

Fig. 1 is the structural representation of the utility model " multifunctional expanded bolt ".Wherein:

1-expansion key; 2-expansion core bar; 3-is towards core bar; The cap on 4-expansion key top; The tail end of 5-expansion key; 6-core hole.

Fig. 2 is the user mode schematic representation of the utility model " multifunctional expanded bolt ".

In conjunction with Fig. 1 embodiment of the present utility model is described.The top of the expansion key (1) of metal garden cylindricality is that a diameter is than its big cap (4); The tail end of expansion key (5) has the cross gap of long 5mm; A core garden cylindricality, threaded hole (6) is opened at the center of expansion key, the cross gap UNICOM of core hole (6) and expansion key tail end (5); Expansion core bar (2) is a diameter than the Cylinder little 0.2mm of internal diameter of core hole (6), band sharp cone distal head, is an identical Cylinder of diameter with expansion core bar (2) towards core bar (3).When hitting towards core bar (3) along core hole (6) when entering, promote expansion core bar (2) and head within the walls, the tail end of expansion key (5) has just expanded, and just can make member fastening.

Claims

1, a kind of multifunctional expanded bolt by expansion key (1), expansion core bar (2), form towards core bar (3), is characterized in that,

A expansion key (1) is a Cylinder, and a cap (4) that diameter is bigger than its diameter is arranged at its top, and tail end (5) has the cross gap, and the center of expansion key (1) has the core hole (6) of garden cylindricality, and is threaded;

The b core bar is a two section type, is a threaded Cylinder towards core bar (3) wherein; Expansion core bar (2) is the Cylinder of a band sharp cone distal head, and its diameter is than the little 0.2mm of internal diameter of core hole (6), and expansion core bar (2) is placed in the core hole (6);

The long approximately 5～10mm of the tail end (5) of c expansion key (1).

2, multifunctional expanded bolt according to claim 1 is characterized in that also can making not threaded Cylinder towards core bar (3), and its diameter is than the little 0.2mm of internal diameter of core hole (6).

3, multifunctional expanded bolt according to claim 1 is characterized in that, expansion key (1), expansion core bar (2), all makes of metal towards core bar (3).