CN203412877U

CN203412877U - Expansion bolt

Info

Publication number: CN203412877U
Application number: CN201320406657.9U
Authority: CN
Inventors: 胡彧章
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-07-10
Filing date: 2013-07-10
Publication date: 2014-01-29
Anticipated expiration: 2023-07-10

Abstract

The utility model discloses an expansion bolt. The expansion bolt comprises a conical bolt and an expansion sleeve, wherein the conical bolt comprises a front end, a middle end and a rear end, the middle end is a cylinder with threads, the rear end is a cone-shaped body, and the front end, the middle end and the rear end are connected integrally; the expansion sleeve comprises a front part, a middle part and a rear part, the middle part is a circular pipe, the rear part is a polygonal nut, and the front part, the middle part and the rear part are connected integrally; the middle end of the conical bolt and the nut of the expansion sleeve are occluded through male threads and female threads. The expansion bolt disclosed by the utility model is simple in structure and convenient to use and can be dismantled, recycled and repeatedly used, so that the cost is saved, and the aesthetic sense of wall surfaces is ensured.

Description

A kind of EXPANSION ANCHOR BOLTS

Technical field

The utility model belongs to fastening piece, and concrete is a kind of EXPANSION ANCHOR BOLTS.

Background technique

All kinds of decorations of Modern Family and public place, finishing, installation often adopt EXPANSION ANCHOR BOLTS to fix all kinds of plates, bar, hook, framework, support etc., non-dismountable, can not reuse, cause the wasting of resources, once want to remove, cannot take out and reclaim expansion sleeve and bolt, on the exterior wall that exposes to wind and rain, leave corrosion vestige, affect attractive in appearance.

Summary of the invention

Technical problem to be solved in the utility model is to provide a kind of EXPANSION ANCHOR BOLTS, can use as common EXPANSION ANCHOR BOLTS is convenient, again detachable, reclaim, also reusable, not only cost-savingly can also guarantee that metope is attractive in appearance.

For solving the problems of the technologies described above, the utility model provides a kind of EXPANSION ANCHOR BOLTS, and it comprises conical bolt and expansion sleeve, taper bolt comprises front end, middle end and rear end, middle end is screwed cylindrical body, and rear end is taper, and described front end, middle end and rear end one are connected; Expansion sleeve comprises front portion, middle part and rear portion, and middle part is circular pipe, and rear end is polygonal nut, and described front portion, middle part and rear portion one are connected; Described taper bolt middle end and expansion sleeve nut are threaded connection.

Described expansion sleeve is anterior for cutting into the circular pipe of the distinguish such as four or six, and taper bolt front end is tetragonal body or hexagonal prism.

During use, taper bolt is screwed in expansion sleeve from expansion sleeve front end in the direction of the clock, until the distinguish such as four or six of the taper of taper bolt and expansion sleeve stop screwing while seemingly contacting, in the body of wall hole that detachable expansion bolt insertion or embedding are conformed to aperture size; The nut putting with spanner fixed expansion, with another spanner, vise taper bolt front end tetragonal body or hexagonal prism, turn-knob in the direction of the clock, taper bolt walks toward outside, and expansion sleeve is motionless, the taper major part of taper bolt is by expansion sleeve spreading, twist tightlyer, increase larger, now, EXPANSION ANCHOR BOLTS just can not be pulled out out, is fixed in body of wall; When needs are removed EXPANSION ANCHOR BOLTS, the nut putting with spanner fixed expansion, vises tetragonal body or the hexagonal prism of taper bolt front end and unscrews to original state by counter clockwise direction with another spanner, can firmly extract or prize, and also can continue to use.

A kind of EXPANSION ANCHOR BOLTS described in the utility model, simple in structure, easy to use, detachable, recovery, also reusable again, not only saved cost and also guaranteed that metope is attractive in appearance.

Accompanying drawing explanation

Fig. 1 is the utility model expansion sleeve and taper bolt assembly structure schematic diagram.

Fig. 2 is the utility model expansion sleeve structural representation.

Fig. 3 is the utility model taper bolt structural representation.

Fig. 4 is A-A cross-sectional schematic.

Fig. 5 is B-B cross-sectional schematic.

Embodiment

Referring to accompanying drawing, a kind of EXPANSION ANCHOR BOLTS, it comprises conical bolt and expansion sleeve, and taper bolt comprises front end 1, middle end 2 and rear end 3, and middle end is screwed cylindrical body, and rear end is taper, described front end, middle end and rear end one are connected; Expansion sleeve comprises front portion 4, middle part 5 and rear portion 6, and middle part is circular pipe, and rear end is polygonal nut, and described front portion, middle part and rear portion one are connected; Described taper bolt middle end and expansion sleeve nut are threaded connection.

During use, taper bolt is screwed in expansion sleeve from expansion sleeve front end in the direction of the clock, until the distinguish such as four or six of the taper of taper bolt and expansion sleeve stop screwing while seemingly contacting, in the body of wall hole that dismountable upset bolt insertion or embedding are conformed to aperture size; The nut putting with spanner fixed expansion, with another spanner, vise taper bolt front end tetragonal body or hexagonal prism, turn-knob in the direction of the clock, taper bolt walks toward outside, and expansion sleeve is motionless, the taper major part of taper bolt is by expansion sleeve spreading, twist tightlyer, increase larger, now, EXPANSION ANCHOR BOLTS just can't pump out, and is fixed in body of wall; When needs are removed EXPANSION ANCHOR BOLTS, the nut putting with spanner fixed expansion, vises tetragonal body or the hexagonal prism of taper bolt front end and unscrews to original state by counter clockwise direction with another spanner, can firmly extract or prize, and also can continue to use.

Claims

1. an EXPANSION ANCHOR BOLTS, it comprises conical bolt and expansion sleeve, it is characterized in that taper bolt comprises front end, middle end and rear end, and middle end is screwed cylindrical body, and rear end is taper, and described front end, middle end and rear end one are connected; Expansion sleeve comprises front portion, middle part and rear portion, and middle part is circular pipe, and rear end is polygonal nut, and described front portion, middle part and rear portion one are connected; Described taper bolt middle end and expansion sleeve nut are threaded connection.

2. a kind of EXPANSION ANCHOR BOLTS according to claim 1, is characterized in that expansion sleeve is anterior for cutting into the circular pipe of the distinguish such as four or six, and taper bolt front end is tetragonal body or six rhombohedreons.