CN208565183U

CN208565183U - Dismountable expansion bolt

Info

Publication number: CN208565183U
Application number: CN201820749146.XU
Authority: CN
Inventors: 唐新建
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-05-21
Filing date: 2018-05-21
Publication date: 2019-03-01
Anticipated expiration: 2028-05-21

Abstract

The utility model relates to hardware fastenings to make industry, and in particular to a kind of dismountable expansion bolt；Need for component to be anchored on the industry in such place such as wall, ground suitable for building, traffic, electric power etc..The dismountable expansion bolt is made of screw rod, nut, expansion sleeve, expansion-head etc.；When rotating nut, expansion-head enters expansion sleeve, expansion sleeve radial direction swell and fastening, and nut is cooperated by annular groove and annular nib when contrary operation, drives that expansion sleeve exits and radial reduce loosens and bolt easy to disassemble.Compare with traditional similar product, improvements and feature are: because in loose nut, related expansion-head exits expansion sleeve simultaneously, can light integral demounting also reusable dismountable expansion bolt；This novel dismountable expansion bolt be conducive to it is resource-effective with it is environmentally friendly and reusable, suitable application area is than wide.

Description

Dismountable expansion bolt

Technical field

The present invention relates to hardware fastenings to make industry, and in particular to a kind of dismountable expansion bolt；By screw rod, nut, Expansion sleeve, the components such as expansion-head composition；It needs component being anchored on wall, ground etc. such as suitable for building, traffic, electric power etc. The industry in such place.

Background technique

Expansion bolt is a kind of suitable for multiple fields, the hardware fastening of comparative maturity, but still there are some wait solve Certainly the problem of: 1, disassembly is inconvenient.Due to covering simple dilatancy after common expansion bolt installation, it is not easy to it extracts, it is general to handle Method is to clench or cut off, public place, the common such discarded expansion bolt of traffic it is exposed, easily cause ring in this way Border influences and the wasting of resources；Known field has a kind of dismountable expansion bolt, but can only accomplish that part is extracted after use, Screw rod can only be extracted, expansion nut and sleeve still can only stay in drill in, cause certain environment to influence and resource wave Take.

2, it cannot reuse.Since ringfeder deformation is irreversible, conventional expanded bolt is not only difficult to dismantle but also can not repeat to make With many temporary projects and the scene for needing to reuse are more awkward.

Summary of the invention

Integral demounting can be facilitated the technical problem to be solved in the present invention is to provide a kind of, and the modified that can be reused can Dismantle expansion bolt.

Dismountable expansion bolt comparison of the present invention is simple, and material and shape are similar with conventional expanded bolt, structure with Manufacture craft is opposite to be improved to some extent and innovates.

The present invention is realized by the following technical solutions: the dismountable expansion bolt is by screw rod, nut, expansion sleeve, expansion First-class composition；It is characterized in that: an annular groove is arranged at nut lower part, an annular nib is arranged at expansion sleeve top, and the two is flexibly connected suitable Match；When rotating nut, expansion sleeve is pushed, expansion-head enters among expansion sleeve, expansion sleeve radial direction swell and fastening；Contrary operation When then nut drive expansion sleeve reversely exit diminution loosen and bolt easy to disassemble.

The nut top has screw thread to be adapted to screw rod, and an annular groove is arranged at lower part, and annular groove is annular horizontal distribution Nut inner wall.

One annular nib is arranged at the expansion sleeve top, and annular nib enters nut lower annular recess, is formed and is flexibly connected Adaptation；Opening is arranged at expansion sleeve lower part, forms expansion sleeve radial direction swell and reduces deformation.

It is had the advantages that compared with conventional expanded bolt using expansion bolt easy to assemble made by the present invention

Can light integral demounting, adapt to environmental requirement and economize on resources.Dismountable expansion bolt installation after need dismantle or When discarded, loose nut, nut drives expansion sleeve to exit outward, at this time expansion sleeve lost after expansion bore between aperture wall Stronger frictional force, then can light integral demounting, if component is unattacked and damage, reusable rate substantially mentioned It is high；Resource has been saved, and has alleviated discarded expansion bolt to environmental nuisances such as road, walls.

Detailed description of the invention

Each main feature of the utility model will be described in more detail below in conjunction with attached drawing.

Fig. 1 is structural schematic diagram.

Fig. 2 is screw rod (1) schematic diagram.

Fig. 3 is nut (2) plan view.

Fig. 4 is nut (2) sectional view.

Fig. 5 is expansion sleeve (3) schematic diagram.

Description of symbols: 1- screw rod, 2- nut, 3- expansion sleeve, 4- annular nib, 5- annular groove, 6, expansion-head 7, Opening.

Specific embodiment

Fig. 1 is a preferred embodiments of the invention.

Fig. 1 middle with reference to the accompanying drawings describes the specific structure and production method of the present embodiment to Fig. 5 description.This can Disassembly expansion bolt is made of screw rod (1), nut (2), expansion sleeve (3), expansion-head (6) etc.；It is characterized in that: nut (2) lower part Have an annular groove (5), expansion sleeve top has an annular nib (4), and the two is flexibly connected adaptation；When rotating nut (2), push away Dynamic expansion sleeve (3), expansion-head (6) enter among expansion sleeve (3), expansion sleeve (3) radial direction swell and fastening；Then spiral shell when contrary operation Female (2) drive expansion sleeve (3) is reversely exited diminution and is loosened and bolt easy to disassemble.

Nut (2) top has screw thread to be adapted to screw rod (1), and lower part has an annular groove (5), and annular groove (5) is Annular horizontal is distributed nut (2) inner wall.

Expansion sleeve (3) top has an annular nib (4), and annular nib (4) enters nut (2) lower annular recess (5), it is formed and is flexibly connected adaptation；Expansion sleeve (3) lower part has opening (7), forms expansion sleeve (3) radial swell and reduces deformation.

In the present embodiment, after screw rod (1), nut (2), expansion sleeve (3), expansion-head (6) are sequentially completed, insertion is used Among the similar suitable apertures needed such as building wall installation fastening accessory；Then, using tool wrench rotating nut (2) It is screwed to appropriateness, completion is just accused in being fixedly connected for single accessory；Similarly, the accessory good if you need to dismantling connection, contrary operation rotation Nut (2), the expansion sleeve taken out of outward (3) lost at this time expansion after bore aperture wall between stronger frictional force, so After can light integral demounting.It is above one of the embodiment of dismountable expansion bolt.

The above is the explanation of the utility model.It is understood that selected embodiment and not exclusive most preferred embodiment, Actual implementation is not limited to embodiments above, and in addition to this, other all subtle and unsubstantiality changes should all be covered by Among the scope of the utility model.

Claims

1. a kind of dismountable expansion bolt, it is characterized in that: being made of screw rod (1), nut (2), expansion sleeve (3), expansion-head (6)； Nut (2) lower part has an annular groove (5), and expansion sleeve top has an annular nib (4), and the two is flexibly connected adaptation；Work as rotation It when nut (2), pushes expansion sleeve (3), expansion-head (6) enters among expansion sleeve (3), expansion sleeve (3) radial direction swell and fastening；It is inverse To operation when then nut (2) drive expansion sleeve (3) reversely exit diminution loosen and bolt easy to disassemble.

2. dismountable expansion bolt according to claim 1, it is characterised in that: screw thread and spiral shell are arranged at nut (2) top Bar (1) adaptation, lower part have an annular groove (5), and annular groove (5) is that annular horizontal is distributed nut (2) inner wall.

3. dismountable expansion bolt according to claim 1, it is characterised in that: an annular is arranged at expansion sleeve (3) top Chimb (4), annular nib (4) enter nut (2) lower annular recess (5), are formed and are flexibly connected adaptation；Expansion sleeve (3) lower part Have opening (7), form expansion sleeve (3) radial swell and reduces deformation.