CN102817893A - Detachable expansion bolt - Google Patents
Detachable expansion bolt Download PDFInfo
- Publication number
- CN102817893A CN102817893A CN 201110165586 CN201110165586A CN102817893A CN 102817893 A CN102817893 A CN 102817893A CN 201110165586 CN201110165586 CN 201110165586 CN 201110165586 A CN201110165586 A CN 201110165586A CN 102817893 A CN102817893 A CN 102817893A
- Authority
- CN
- China
- Prior art keywords
- expansion
- screw rod
- nut
- thread
- concentric reducer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003638 chemical reducing agent Substances 0.000 claims description 26
- 230000006835 compression Effects 0.000 claims description 9
- 238000007906 compression Methods 0.000 claims description 9
- 238000000034 method Methods 0.000 abstract description 3
- 229910052799 carbon Inorganic materials 0.000 abstract description 2
- 210000003205 muscle Anatomy 0.000 description 6
- 238000010079 rubber tapping Methods 0.000 description 5
- 230000008961 swelling Effects 0.000 description 3
- 239000012467 final product Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002285 radioactive effect Effects 0.000 description 1
- 230000035922 thirst Effects 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B13/00—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose
- F16B13/04—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front
- F16B13/06—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve
- F16B13/063—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander
- F16B13/066—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander fastened by extracting a separate expander-part, actuated by the screw, nail or the like
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Connection Of Plates (AREA)
- Piles And Underground Anchors (AREA)
Abstract
The invention relates to a detachable expansion bolt which comprises a screw, a reducing nut, an expansion sleeve, a locking gasket, a spring gasket and a nut, a long thread and a short thread are arranged on the screw, the small end of the reducing nut is inserted into one end of the expansion sleeve, and the outer diameter of the large end of the reducing nut is larger than the inner diameter of the expansion sleeve. According to the detachable expansion bolt, technical problems that expansion bolts are difficult to adjust, exchange and detach and can't be repeatedly used are solved, the function, performance and using method of the expansion bolt are completely identical to those of old expansion bolts, and the expansion bolt is capable of achieving purposes of low-carbon emission, resource saving, energy saving and environment protection.
Description
Technical field
The present invention relates to a kind of detachably again can reusable dismountable expansion bolt.
Background technique
Present employed EXPANSION ANCHOR BOLTS comprises swell fixture and nut that matches with it and expansion sleeve; Wherein the swell fixture bolt is terminal is that the truncated cone shape ailhead perhaps is set to the truncated cone shape nut, and said expansion sleeve has a plurality of vertical notches near an end of truncated cone shape ailhead or truncated cone shape nut, and an end of expansion sleeve is divided into a plurality of expansion muscle in other words; The other end is a cast; During use, tighten swell fixture or nut, truncated cone shape ailhead or truncated cone shape nut are pressed in the said expansion sleeve from small end to big end; Force the tapered dilatancy of its expansion muscle, and expand in mounting hole.
With regard to the expansion of metal sleeve pipe, this expansion bending distortion can not disappear because of the disappearance of external force, because expansion sleeve expands in mounting hole; And do not expose outside the mounting hole, want to take out EXPANSION ANCHOR BOLTS, can only spur by force and have truncated cone shape ailhead or truncated cone shape nut; Expansion sleeve can further expand and being stuck in the mounting hole tightly like this, in this case, if continue to increase pulling force; Will damage metope and various carrier, the EXPANSION ANCHOR BOLTS that takes out by force is difficult to reuse.
Produce, we often run into the EXPANSION ANCHOR BOLTS that is installed in body of wall or ground, road surface and need remove and be difficult to remove in the life, these EXPANSION ANCHOR BOLTSs that are stranded in body of wall or ground, road surface have caused great inconvenience, and have had a strong impact on attractive in appearance for our production, life; People are attempting addressing the above problem always, have occurred the swell fixture that a kind of tapping screw and plastic expansion sleeve pipe combine now on the market, and characteristics are that the top of plastic expansion sleeve pipe is the tubulose of internal diameter greater than the tapping screw external diameter; The bottom is provided with two adjacent expansion muscle arranged side by side, and during use, an end that the plastic expansion sleeve pipe is had the expansion muscle inserts in the mounting hole; When being screwed into tapping screw, tapping screw is made screw thread at the interior sidespin of expansion muscle on the one hand, forces two expansion muscle crooked to both sides on the other hand; Thereby make the plastic expansion cannula end expand also swelling in mounting hole; When needing dismounting, can tapping screw be back-outed, this swell fixture receives the influence of plastic material; Its intensity is limited; In mounting hole, come off easily, can not carry too big load, and the plastic expansion sleeve pipe also is difficult for taking out.
Summary of the invention
The technical problem that the present invention will solve is that people thirst for solving how to overcome the difficult problem that existing EXPANSION ANCHOR BOLTS can't be dismantled, can't reuse and be difficult between same model transposing mutually and can't be adjusted height always for a long time; Providing a kind of can dismantle and can reuse; Can also be after EXPANSION ANCHOR BOLTS be installed; Adjusting it exposes in body of wall outer bolt part and can regulate height as required; Also can between the bolt of the different purposes of same model, change mutually and use fixing, the convenient dismountable expansion bolt that uses that again can be firm.
For solving the problems of the technologies described above, a kind of dismountable expansion bolt of the present invention comprises screw rod, nut, expansion sleeve, check washer, compression spring and CONCENTRIC REDUCER nut; Screw rod is provided with long thread section and short thread segments; Wherein setting has or not thread section in the middle of the screw rod, and the diameter of no thread section is equal to or greater than the thread section external diameter, and less than the expansion sleeve internal diameter; Dismountable expansion bolt can be set to geometrical shapies such as pothook type according to purposes; Be provided with the CONCENTRIC REDUCER nut one of screw rod short thread segments, the small end of said CONCENTRIC REDUCER nut is plugged in said expansion sleeve one end, and the big end external diameter of CONCENTRIC REDUCER nut is greater than the interior warp of said expansion sleeve.
So design, the nut of screwing during use makes the CONCENTRIC REDUCER nut be pressed in the said expansion sleeve from small end to big end, forces said expansion sleeve to do radioactive displacement and swelling on the hole wall of mounting hole, thereby realizes the purpose of fixing whole EXPANSION ANCHOR BOLTS; When needing adjustment, transposing or dismounting; Because of the CONCENTRIC REDUCER nut is embedded in expansion sleeve and the mounting hole; As long as unclamp nut, carry out the adjustment of screw rod or dismantle, just can realize adjusting screw rod height, smooth and unified; If confirm useless can the dismounting easily, thus the purpose that reaches the bolt adjustment or dismantle.After taking out screw rod in addition; CONCENTRIC REDUCER nut and expansion sleeve also swelling are trapped in the hole; At this moment can utilize the CONCENTRIC REDUCER nut and the expansion sleeve that are trapped in the hole that other special-shaped EXPANSION ANCHOR BOLTS is installed, other parts that disassemble are realized reusable purpose with dismountable expansion bolt.
In the above technological scheme; The inventor analyses in depth the structure and the drawback of the EXPANSION ANCHOR BOLTS that is now adopted, and has designed dismountable expansion bolt, and screw rod is provided with long thread section and short thread segments; The centre of screw rod is set to not have thread section for one section; The diameter of outstanding thread section is not less than the external diameter of screw flight and less than the internal diameter of expansion sleeve, is combined with expansion sleeve on the screw rod, and the long thread section of screw rod is combined with nut, compression spring and check washer; The short thread segments of screw rod is combined with the CONCENTRIC REDUCER nut; The small end of said CONCENTRIC REDUCER nut is plugged in said expansion sleeve one end, and the big end external diameter of CONCENTRIC REDUCER nut is greater than the interior warp of said expansion sleeve, and said dismountable expansion bolt can be set to pothook type according to purposes; After EXPANSION ANCHOR BOLTS of the present invention is installed; Can adjust it and expose in the part of body of wall outer bolt and can regulate height as required with smooth, also can be between the bolt of the different purposes of same model difformity mutually transposing use, again can be firm fixing, dismounting easily also can reusable dismountable expansion bolt.
Traditional expansion bolt is in installation process; Its whole EXPANSION ANCHOR BOLTS is stuck in the mounting hole and can not takes out, and the two compares the present invention has outstanding substantive distinguishing features and outstanding to advance to relate to, after the employing technique scheme; Dismountable expansion bolt of the present invention has simple in structure; Cheap, the repeatedly used advantage of convenient disassembly is adaptable across ground, industry and field such as metope, road surface and industry, agricultural and society be public; To ecological environmental protection, saving earth resource, reduction carbon emission play significant role.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified.
Fig. 1 is the plan of dismountable expansion bolt of the present invention.
Fig. 2 is dismountable expansion bolt screw design figure of the present invention.
Fig. 3 is an invention pothook type dismountable expansion bolt plan.
Fig. 4 is dismountable expansion bolt hook screw design figure of the present invention.。
Among the figure, 1 screw rod, 2 nuts, 3 compression springs, 4 pads, 5 expansion sleeves, 6 CONCENTRIC REDUCER nuts, 7 long thread section 8 no thread section 9 short thread segments 10 pothook type screw rods
Embodiment
Embodiment 1:
In Fig. 1; Be combined with expansion sleeve (5) on the screw rod (1); The two ends of screw rod (1) are provided with long thread section (7) and short thread segments (9); Be provided with in the middle of the screw rod (1) and have or not thread section (8), the long thread section (7) of screw rod (1) to be provided with short thread segments (9) with the nut (2) of its threads engaged and compression spring (3) and pad (4), screw rod (1) to be provided with the CONCENTRIC REDUCER nut (6) with its threads engaged.
In Fig. 2; Be combined with expansion sleeve (5) on the screw rod (1); The two ends of screw rod (1) are provided with long thread section (7) and short thread segments (9); Be provided with in the middle of the screw rod (1) and have or not thread section (8), the long thread section (7) of screw rod (1) to be provided with short thread segments (9) with the nut (2) of its threads engaged and compression spring (3) and pad (4), screw rod (1) to be provided with the CONCENTRIC REDUCER nut (6) with its threads engaged.
In Fig. 3; Be combined with expansion sleeve (5) on the hook pattern screw rod (10); The two ends of pothook type screw rod (10) are provided with long thread section (7) and short thread segments (9); Be provided with in the middle of the screw rod (1) and have or not thread section (8); The long thread section (7) of pothook type screw rod (10) is provided with nut (2) and compression spring (3) and the pad (4) with its threads engaged, and the short thread segments (9) of pothook type screw rod (10) is provided with the CONCENTRIC REDUCER nut (6) with its threads engaged.
In Fig. 4; Be combined with expansion sleeve (5) on the hook pattern screw rod (10); The two ends of pothook type screw rod (10) are provided with long thread section (7) and short thread segments (9); Be provided with in the middle of the screw rod (1) and have or not thread section (8), the long thread section (7) of pothook type screw rod (10) to be provided with nut (2) and compression spring (3) and pad (4) with its threads engaged, the short thread segments (9) of pothook type screw rod (10) is provided with the CONCENTRIC REDUCER nut (6) with its threads engaged; During installation; A suitable hole is made a call in the institute mounting point, EXPANSION ANCHOR BOLTS is put into the hole, nut (2) is tightened got final product; When needing adjustment, transposing and dismounting, unclamp nut (2) and utilize instrument to get final product silk screw rod (1) is adjusted, changed and dismantles.
Claims (6)
1. dismountable expansion bolt; Comprise screw rod, CONCENTRIC REDUCER nut, expansion sleeve, pad, compression spring and nut, the centre of screw rod is set to not have thread section for one section, and the diameter of no thread section is not less than the external diameter of screw flight and less than the internal diameter of expansion sleeve; Wherein the screw thread at screw rod two ends is set to long thread section and short thread segments; On screw rod short thread end, be combined with the CONCENTRIC REDUCER nut, EXPANSION ANCHOR BOLTS can be set to pothook type according to purposes, and the small end of said CONCENTRIC REDUCER nut is plugged in said expansion sleeve one end; The big end external diameter of CONCENTRIC REDUCER nut is greater than the interior warp of said expansion sleeve; It is characterized in that: said dismountable expansion bolt is set to not have thread section for one section to the centre of silk screw rod, and the diameter of no thread section is not less than the external diameter of screw flight and less than the internal diameter of expansion sleeve, wherein the screw thread at screw rod two ends is set to long thread section and short thread segments; Be combined with the CONCENTRIC REDUCER nut on the screw rod short thread end; The small end of said CONCENTRIC REDUCER nut is plugged in said expansion sleeve one end, and the big end external diameter of CONCENTRIC REDUCER nut is greater than the interior warp of said expansion sleeve, and said dismountable expansion bolt can be set to pothook type according to purposes.
2. dismountable expansion bolt according to claim 1 is characterized in that: the centre of the screw rod of said EXPANSION ANCHOR BOLTS is set to not have thread section for one section, and the diameter of no thread section is not less than the external diameter of screw flight.
3. dismountable expansion bolt according to claim 1 is characterized in that: be combined with sleeve pipe on the screw rod, middle no thread section screw diameter is less than the internal diameter of sleeve pipe.
4. dismountable expansion bolt according to claim 1; Tool is characterised in that: the screw thread at said EXPANSION ANCHOR BOLTS screw rod two ends is set to long thread section and short thread segments; Long threaded end is combined with nut, compression spring and pad, and screw rod short thread end is combined with the CONCENTRIC REDUCER nut.
5. dismountable expansion bolt according to claim 1 is characterized in that: said EXPANSION ANCHOR BOLTS is set to pothook type according to purposes.
6. dismountable expansion bolt according to claim 1 is characterized in that: the small end of said EXPANSION ANCHOR BOLTS CONCENTRIC REDUCER nut is plugged in said expansion sleeve one end, and the big end external diameter of CONCENTRIC REDUCER nut is greater than the interior warp of said expansion sleeve.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110165586 CN102817893A (en) | 2011-06-09 | 2011-06-09 | Detachable expansion bolt |
| PCT/CN2011/001271 WO2012167409A1 (en) | 2011-06-09 | 2011-08-02 | Dismountable expansion bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110165586 CN102817893A (en) | 2011-06-09 | 2011-06-09 | Detachable expansion bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102817893A true CN102817893A (en) | 2012-12-12 |
Family
ID=47295327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110165586 Pending CN102817893A (en) | 2011-06-09 | 2011-06-09 | Detachable expansion bolt |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102817893A (en) |
| WO (1) | WO2012167409A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105179397A (en) * | 2015-10-09 | 2015-12-23 | 周兆弟 | Clamping table type connecting piece |
| CN105443530A (en) * | 2014-09-07 | 2016-03-30 | 梁俊炫 | Easy-to-pull expansion screw |
| CN106369031A (en) * | 2016-11-14 | 2017-02-01 | 杭州知加网络科技有限公司 | Improved expansion bolt |
| 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 |
| CN106958579A (en) * | 2017-04-18 | 2017-07-18 | 苏州标杆知识产权运营有限公司 | A kind of check bolt |
| CN109083903A (en) * | 2018-10-23 | 2018-12-25 | 嘉兴丽旺五金有限公司 | A kind of curved tail formula expansion bolt mounting assembly |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3731818A1 (en) * | 1987-09-22 | 1989-03-30 | Hilti Ag | SPREADING DOWEL |
| CN2118195U (en) * | 1991-11-30 | 1992-10-07 | 牛树江 | Inverted thread expanding sleeve |
| CN2572103Y (en) * | 2002-09-13 | 2003-09-10 | 康玉功 | Demountable expansion screw |
| CN2731162Y (en) * | 2004-08-02 | 2005-10-05 | 王春华 | Metal hanging anchor-bolt |
| JP4160585B2 (en) * | 2005-09-08 | 2008-10-01 | 株式会社ロブテックス | One-side bolt removal method and removal tool |
| CN201386717Y (en) * | 2009-03-03 | 2010-01-20 | 郭振春 | Easily removable expansion bolt |
| CN101825130A (en) * | 2009-03-03 | 2010-09-08 | 郭振春 | Easily detachable expansion bolt |
-
2011
- 2011-06-09 CN CN 201110165586 patent/CN102817893A/en active Pending
- 2011-08-02 WO PCT/CN2011/001271 patent/WO2012167409A1/en active Application Filing
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105443530A (en) * | 2014-09-07 | 2016-03-30 | 梁俊炫 | Easy-to-pull expansion screw |
| CN105179397A (en) * | 2015-10-09 | 2015-12-23 | 周兆弟 | Clamping table type connecting piece |
| CN106369031A (en) * | 2016-11-14 | 2017-02-01 | 杭州知加网络科技有限公司 | Improved expansion bolt |
| 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 |
| CN106958579A (en) * | 2017-04-18 | 2017-07-18 | 苏州标杆知识产权运营有限公司 | A kind of check bolt |
| CN109083903A (en) * | 2018-10-23 | 2018-12-25 | 嘉兴丽旺五金有限公司 | A kind of curved tail formula expansion bolt mounting assembly |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2012167409A1 (en) | 2012-12-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121212 |