CN101858377A

CN101858377A - Dismountable expansion bolt

Info

Publication number: CN101858377A
Application number: CN200910116507A
Authority: CN
Inventors: 胡星光; 赵嵘; 徐海霞
Original assignee: TONGLING CHANGJIANG DIAMOND TOOLS CO Ltd
Current assignee: TONGLING CHANGJIANG DIAMOND TOOLS CO Ltd
Priority date: 2009-04-10
Filing date: 2009-04-10
Publication date: 2010-10-13

Abstract

The invention discloses a dismountable expansion bolt, comprising a bolt (1), expansion jackets (5 and 6) sheathed outside the expansion bolt (1), a spacer (4), an elastic washer (3), a locating nut (9) and a locking nut (2); wherein the expansion jackets (5 and 6) are composed of at least two pieces in the radical direction. The expansion bolt of the invention can be dismounted and reused and can reduce use cost.

Description

Dismountable expansion bolt

Technical field

The present invention relates to a kind of EXPANSION ANCHOR BOLTS, specifically a kind of dismountable expansion bolt.

Background technique

At present, known EXPANSION ANCHOR BOLTS by bolt, be enclosed within bolt outer expansion of metal cutting ferrule, pad, spring washer, nut and form.During installation EXPANSION ANCHOR BOLTS is got to Kong Zhonghou on ground or the metope, the nut on the EXPANSION ANCHOR BOLTS that screws up with a wrench, bolt walks toward outside, and the metallic sheath of outside is motionless, so the major part under the bolt is just the metallic sheath spreading, make the whole hole of its overflow, at this moment, EXPANSION ANCHOR BOLTS just can't pump out.Be enclosed within after this EXPANSION ANCHOR BOLTS is installed that the outer metallic sheath majority of bolt has been out of shape and metallic sheath to fix not quick detachablely with ground or metope, cause EXPANSION ANCHOR BOLTS can not carry out secondary and use.

Summary of the invention

The purpose of this invention is to provide a kind of dismountable expansion bolt, EXPANSION ANCHOR BOLTS can be used repeatedly by dismounting, thereby reduces user cost.

The present invention is achieved in that it comprises bolt, is enclosed within bolt outer expansion cutting ferrule, pad, elastic washer, setscrew nut and locking nut, and described inflating clip is enclosed within the footpath and upwards has two compositions at least.During installation, the expansion cutting ferrule wraps in the bolt outside, get in the hole on ground or the metope, setscrew nut on the EXPANSION ANCHOR BOLTS that screws up with a wrench, bolt walks toward outside, and the expansion cutting ferrule is motionless, the big first two halves expansion cutting ferrule spreading under the bolt, make the whole hole of its overflow, this moment, EXPANSION ANCHOR BOLTS just can't pump out.During dismounting, with spanner setscrew nut is screwed out, press bolt, burst takes out the expansion cutting ferrule, takes out bolt again, so just can reach the purpose that fast quick-detach and secondary use.

Dismantle setscrew nut for convenience, the outer end of bolt has the flat side that can supply spanner to put forth effort.During dismounting, block the flat side of bolt one end, with another spanner setscrew nut is screwed out again, press bolt with spanner.

The invention has the beneficial effects as follows that EXPANSION ANCHOR BOLTS can be dismantled repeatedly and use, thereby reduce user cost.

Description of drawings

Fig. 1 is a structural representation of the present invention.

Fig. 2 is the structural representation after the present invention installs.

Fig. 3 is an inflating clip nested structure schematic representation.

Fig. 4 is along A-A line sectional view among Fig. 3.

Among the above-mentioned figure, 1, bolt, 2, locking nut, 3, elastic washer, 4, pad, 5, expansion cutting ferrule I, 6, expansion cutting ferrule II, 7, ground or metope, 8, workpiece, 9 setscrew nuts, 10, flat side.

Embodiment

As shown in Figures 1 to 4, dismountable expansion bolt of the present invention is made up of bolt 1, locking nut 2, spring washer 3, pad 4, expansion cutting ferrule.Inflating clip is enclosed within the footpath and upwards has two compositions at least, as shown in Figures 2 and 3, adopts two cutting ferrule I5 that promptly expand, expansion cutting ferrule II6 in the present embodiment.The outer end of bolt 1 has the square flat side 10 that can supply spanner to put forth effort.

During installation, as shown in Figure 1, expansion cutting ferrule I5 and expansion cutting ferrule II6 are wrapped on the bolt 1; Get in the hole on ground or the metope 7, setscrew nut 9 on the EXPANSION ANCHOR BOLTS that screws up with a wrench, bolt 1 moves outside ground or metope 7,

expansion cutting ferrule

5 and 6 is motionless, the big first two halves expansion sleeve 5 of bolt 1 bottom and 6 lower end spreadings make the whole hole of its overflow, and this moment, EXPANSION ANCHOR BOLTS just can't pump out, use locking nut 2, elastic washer 3 and pad 4 fixation workpieces 8 then, as shown in Figure 2.During dismounting, shed workpiece 2 after, shed setscrew nut 2 again, earthward or metope 7 directions press bolt 1, just can take out a slice expansion cutting ferrule I5, take out bolt 1, another expansion cutting ferrule II6 again, just can reach the purpose that fast quick-detach and secondary use.

Claims

1. dismountable expansion bolt comprises bolt [1], is enclosed within bolt [1] outer expansion cutting ferrule [5,6], pad [4], elastic washer [3], setscrew nut [9] and locking nut [2], it is characterized in that described expansion cutting ferrule [5,6] has two compositions diametrically at least.

2. dismountable expansion bolt according to claim 1 is characterized in that the outer end of bolt [1] has the flat side [10] that can supply spanner to put forth effort.