CN204572676U - A kind of expansion system of dismountable EXPANSION ANCHOR BOLTS - Google Patents
A kind of expansion system of dismountable EXPANSION ANCHOR BOLTS Download PDFInfo
- Publication number
- CN204572676U CN204572676U CN201520121307.7U CN201520121307U CN204572676U CN 204572676 U CN204572676 U CN 204572676U CN 201520121307 U CN201520121307 U CN 201520121307U CN 204572676 U CN204572676 U CN 204572676U
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- China
- Prior art keywords
- sleeve pipe
- section
- inner nut
- nut
- expansion
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Abstract
The utility model provides a kind of expansion system of dismountable EXPANSION ANCHOR BOLTS, solves the problem that common EXPANSION ANCHOR BOLTS is not easily removed.The utility model comprises screw rod, outer nut, inner nut, sleeve pipe.Described screw rod is provided with two sections of screw threads, described inner nut is hollow round table shape, described sleeve pipe is tubulose, one end offers gap and circular hole, is convenient to fix and pull sleeve pipe when rotating and remove, and the described sleeve pipe the other end is provided with many notches, sleeve pipe is divided into many Expandable strip, rotate outer nut, sleeve pipe is moved to inner nut direction, and then inner nut can by Expandable strip distending.The utility model not only achieves rapid expanding and can remove, and both for the shutoff of bolt hole provides convenience, has improved the effect of repairing, can reuse again, cut the waste.
Description
Technical field
The invention belongs to construction and installation component technology field, be applicable to only need temporary fixed something and finally will restore to the original state, especially under water or the template of concrete structure reinstatement works or the temporary fixed of support under tide environment, particularly a kind of detachable EXPANSION ANCHOR BOLTS and assembly and disassembly methods thereof.
Background technique
Conventional EXPANSION ANCHOR BOLTS utilizes end wedge configuration, and by the relative movement of screw rod and sleeve pipe, wedge shape struts sleeve bottom, realizes sleeve pipe and contacts with the effective of structure hole wall, thus provides the anti-pulling ability of screw rod.But because sleeve pipe is squeezed end gross distortion, cannot normally take out, and the minimum circumscribed circle diameter of screw rod end wedge shape is greater than the inner diameter not being out of shape anterior cannula, just because of sleeve pipe cannot take out, directly causes screw rod also cannot take out.In the past when repairing under water or have the concrete structure of tidal effect surperficial, need in its surperficial temporary fixed template, employing EXPANSION ANCHOR BOLTS is fixedly the method for the most frequently used also most convenient, and the consumption of EXPANSION ANCHOR BOLTS is more, but the EXPANSION ANCHOR BOLTS of routine can not be removed after a procedure, mostly cut off along structure surface.Gap between screw rod and sleeve pipe is very little and cannot effectively shutoff, and screw rod and sleeve pipe and the gap between sleeve pipe and hole wall are that corrosive medium provides the passage entering structure inside, thus cause the problem of inside configuration corrosion of steel bar.
Since EXPANSION ANCHOR BOLTS is the most frequently used, the most easy method of temporary fixed object, that is just necessary that exploitation one can be removed after a procedure smoothly very much, and can reusable EXPANSION ANCHOR BOLTS, to make up defect that existing EXPANSION ANCHOR BOLTS cannot take out and to cut the waste.
Summary of the invention
The object of the invention is to there are the problems referred to above for existing technology, propose a kind of expansion system for dismountable EXPANSION ANCHOR BOLTS, realize the performance of conventional EXPANSION ANCHOR BOLTS, and can remove after using.
Object of the present invention realizes by following technical proposal: a kind of detachable EXPANSION ANCHOR BOLTS, comprises screw rod, outer nut, inner nut, sleeve pipe.Described inner nut is hollow round table shape, and the internal diameter of described sleeve pipe is slightly larger than the small end outer diameter of inner nut; Described sleeve pipe is peripherally provided with two length be symmetric near one end of expansion screw section be the gap of 2 ~ 5mm, and arranging near inside about the 5mm place of outer nut end the circular hole that two penetrate casing wall, described circular hole and gap distribute along sleeve pipe even circumferential; Described sleeve pipe arranges several notch along its length near inner nut one end, and notch can block the fin outside inner nut, to ensure that inner nut and sleeve pipe rotating in same direction do not occur when screwing outer nut expansion and rotary screw removes.
Above-mentioned screw rod two ends are respectively carved with one section in reverse screw thread, are respectively expansion screw section and binding thread section, and be provided with gripping section near expansion screw section one end, be connected to screw rod circumference in described gripping section cross section, lower planes is parallel; Described expansion screw section reach is advisable to facilitate casing expandable, and binding thread section reach is to be close to suitable with inner nut reach.
Compared with prior art, this detachable EXPANSION ANCHOR BOLTS assembling is simple, and can easily screw rod, sleeve pipe, inner nut be removed, so that shutoff hole for the expansion bolt, recover structure original appearance and prevent entering of aggressive substances, promote the integrity of repairing, extend and repair the life-span, also reduce waste of material in passing.
Accompanying drawing explanation
Fig. 1 is scheme of installation before this dismountable EXPANSION ANCHOR BOLTS expands.
Fig. 2 is the screw-rod structure figure of this dismountable EXPANSION ANCHOR BOLTS.
Fig. 3 is schematic diagram after this dismountable EXPANSION ANCHOR BOLTS expands.
Fig. 4 is the sectional drawing along screw axis after this dismountable EXPANSION ANCHOR BOLTS expands.
In figure, 1, screw rod, 1-1, binding thread section, 1-2, expansion screw section, 1-3, gripping section, 2, sleeve pipe, 2-1, gap, 2-2, circular hole, 2-3, notch, 2-4, Expandable strip, 3, inner nut, 3-1, fin, 4, outer nut.
Embodiment
Be below specific embodiments of the invention and by reference to the accompanying drawings, technological scheme of the present invention is further described, but the present invention be not limited to these embodiments.
As shown in Figures 1 to 4, a kind of detachable EXPANSION ANCHOR BOLTS, comprises screw rod 1, outer nut 4, inner nut 3, sleeve pipe 2.Described screw rod 1 is shaft-like, and two sections of contrary screw threads of direction are carved with at two ends, inner nut 3 and outer nut 4 realize position by screw rod 1 screw thread and move, outer nut 4 is conventional hexagonal nut, inner nut 3 is in hollow round table shape, fin 3-1 is provided with along outward edge, the inner diameter being slightly less than sleeve pipe 2 open bottom compared with small end face diameter of inner nut 3, sleeve pipe 2 inner diameter is slightly larger than screw rod 1 outer diameter, described sleeve pipe 2 is peripherally symmetrical arranged shallow gap 2-1 near outer nut 4 end, sleeve pipe 2 the other end is uniform is symmetrical arranged some notch 2-3, when being convenient to screw rod 1 with inner nut 3 relative movement, open bottom sleeve pipe 2 and hole wall close contact, possesses the bearing capacity of conventional EXPANSION ANCHOR BOLTS.
Preferably, two sections of reverse threads are carved with at above-mentioned screw rod 1 two ends respectively, are respectively expansion screw section 1-2 and binding thread section 1-1, and be provided with gripping section 1-3 near expansion screw section 1-2 one end, be connected to screw rod 1 circumference in described gripping section 1-3 cross section, lower planes is parallel; Described expansion screw section 1-2 reach is suitable to facilitate sleeve pipe 2 to be expanded to, and binding thread section 1-1 reach is to be close to suitable with inner nut 3 reach.
Preferably, above-mentioned outer nut 4 is conventional hexagon nut, and internal thread mates with expansion screw section 1-2, described inner nut 3 is in hollow round table shape, be provided with several fin 3-1 along round platform outer surface, fin 3-1 extends to large end face from round platform small end face edge, and fin 3-1 height is a little less than round platform maximum outside diameter.Described inner nut 3 internal thread coordinates with binding thread section 1-1.
Preferably, the internal diameter of above-mentioned sleeve pipe 2 is slightly larger than the small end outer diameter of inner nut 3; Described sleeve pipe is peripherally provided with the gap 2-1 that two length be symmetric are 2 ~ 5mm near one end of expansion screw section 1-2, arranging near inside about the 5mm place of outer nut end the circular hole 2-2 that two penetrate sleeve pipe 2 wall, described circular hole 2-2 and gap 2-1 distributes along sleeve pipe even circumferential; Described sleeve pipe 2 arranges several notch 2-3 along its length near inner nut 3 one end, and notch 2-3 can block the fin 3-1 outside inner nut 3, to ensure that inner nut 3 and sleeve pipe 2 rotating in same direction do not occur when screwing outer nut 4 expansion and rotary screw 1 removes.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art of the present invention can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.
Although more employ screw rod herein, inner hexagonal hole, dovetail post, expansion screw section, fastening screw rasp bar, inner sleeve, interior stern notch, interior swollen bar, outer sleeve, outer stern notch, outer swollen bar, outer circle hole, fastening cover, structure, through hole, the terms such as nut, but do not get rid of the possibility using other term.These terms are used to be only used to describe and explain essence of the present invention more easily; The restriction that they are construed to any one additional is all contrary with spirit of the present invention.
Claims (2)
1. a detachable EXPANSION ANCHOR BOLTS, comprises screw rod, outer nut, inner nut, sleeve pipe.Described inner nut is hollow round table shape, and the internal diameter of described sleeve pipe is slightly larger than the small end outer diameter of inner nut; Described sleeve pipe is peripherally provided with two length be symmetric near one end of expansion screw section be the gap of 2 ~ 5mm, and arranging near inside about the 5mm place of outer nut end the circular hole that two penetrate casing wall, described circular hole and gap distribute along sleeve pipe even circumferential; Described sleeve pipe arranges several notch along its length near inner nut one end, and notch can block the fin outside inner nut, to ensure that inner nut and sleeve pipe rotating in same direction do not occur when screwing outer nut expansion and rotary screw removes.
2. the detachable EXPANSION ANCHOR BOLTS of one according to claim 1, it is characterized in that, described screw rod two ends are respectively carved with one section in reverse screw thread, be respectively expansion screw section and binding thread section, gripping section is provided with near expansion screw section one end, be connected to screw rod circumference in described gripping section cross section, lower planes is parallel; Described expansion screw section reach is advisable to facilitate casing expandable, and binding thread section reach is to be close to suitable with inner nut reach.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520121307.7U CN204572676U (en) | 2015-03-02 | 2015-03-02 | A kind of expansion system of dismountable EXPANSION ANCHOR BOLTS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520121307.7U CN204572676U (en) | 2015-03-02 | 2015-03-02 | A kind of expansion system of dismountable EXPANSION ANCHOR BOLTS |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204572676U true CN204572676U (en) | 2015-08-19 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520121307.7U Expired - Fee Related CN204572676U (en) | 2015-03-02 | 2015-03-02 | A kind of expansion system of dismountable EXPANSION ANCHOR BOLTS |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204572676U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443533A (en) * | 2015-12-30 | 2016-03-30 | 苏志杰 | Detachable and reusable expansion bolt set |
| CN106884837A (en) * | 2017-03-30 | 2017-06-23 | 红塔烟草(集团)有限责任公司 | The expansion bolt that a kind of easy taking-up can be reused |
| CN107023547A (en) * | 2015-12-28 | 2017-08-08 | 纽弗雷公司 | fastener and fastening structure |
-
2015
- 2015-03-02 CN CN201520121307.7U patent/CN204572676U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107023547A (en) * | 2015-12-28 | 2017-08-08 | 纽弗雷公司 | fastener and fastening structure |
| CN105443533A (en) * | 2015-12-30 | 2016-03-30 | 苏志杰 | Detachable and reusable expansion bolt set |
| CN106884837A (en) * | 2017-03-30 | 2017-06-23 | 红塔烟草(集团)有限责任公司 | The expansion bolt that a kind of easy taking-up can be reused |
| CN106884837B (en) * | 2017-03-30 | 2023-09-01 | 红塔烟草(集团)有限责任公司 | Expansion bolt capable of being taken out easily and being reused |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 Termination date: 20160302 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |