CN104533908A - Recoverable expansion screw - Google Patents
Recoverable expansion screw Download PDFInfo
- Publication number
- CN104533908A CN104533908A CN201410796632.3A CN201410796632A CN104533908A CN 104533908 A CN104533908 A CN 104533908A CN 201410796632 A CN201410796632 A CN 201410796632A CN 104533908 A CN104533908 A CN 104533908A
- Authority
- CN
- China
- Prior art keywords
- nut
- screw rod
- screw
- expansion
- diameter
- 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
- 241001149930 Protura <class> Species 0.000 claims description 15
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
Abstract
The invention discloses a recoverable expansion screw. The recoverable expansion screw comprises screw rods, screw caps and nuts, wherein the screw rods comprise the screw rod A and the screw rod B, the screw caps comprise the screw cap A and the screw cap B, and the nuts comprise the nut A and the nut B. One end of the screw rod A is connected with the screw rod B, the diameter of the screw rod A is larger than that of the screw rod B, a thread of the screw rod A is opposite to a thread of the screw rod B, and the nut B is fixedly installed in the middle of the screw rod A; the screw cap B is installed on the screw rod A and located between the screw rod B and the nut B, and one end of the screw cap B is provided with an expansion groove close to the nut B; the screw cap A is installed on the screw rod B, one end of the screw cap A is provided with a conical opening, the height of the conical opening is equal to the length of the expansion groove, and the nut A is installed at the other end of the screw rod A. The screw rod B can be replaced by a conical head, and the screw cap A is removed to manufacture a new expansion screw. The recoverable expansion screw can be recovered and reused, needed cost is roughly equal to that of the original expansion screw, and the recoverable expansion screw is convenient to use and suitable for mass production.
Description
Technical field
The present invention relates to a kind of screw, specifically recyclable setscrew.
Background technique
Be found everywhere at nowadays setscrew, use is very wide, and consumption is very many.But because it can not reclaim, being just difficult to be taken out once by entering, so just making it be difficult to reclaim, causing very large waste.Bring many troubles sometimes also to many workmans, place has pushed the wrong and just cannot compensate for sometimes simultaneously.When sometimes needing to change individual side, then original setscrew then cannot take out, and may affect attractive in appearance, and some is also kept a joint bolt and is exposed to outside, may bring danger.
Summary of the invention
The object of the present invention is to provide safety, callable setscrew, to solve the problem proposed in above-mentioned background technology.
For achieving the above object, the invention provides following technological scheme:
Recyclable setscrew, comprises screw rod, nut and nut, and screw rod comprises screw rod A and screw rod B, and nut comprises nut A and nut B, and nut comprises nut A and nut B; One end of screw rod A is connected with screw rod B, and the diameter of screw rod A is greater than the diameter of screw rod B, and the screw thread of screw rod A and screw rod B is reverse, and nut B is fixedly mounted on the middle part of screw rod A; Nut B is arranged on screw rod A, and between screw rod B and nut B; One end of nut B offers expansion slot, and this expansion slot is near nut B; Nut A is arranged on screw rod B, and one end of nut A is taper mouth, and this taper mouth is near screw rod A; The height of taper mouth equals the length of expansion slot; Nut B is equal with the external diameter of nut A; Nut A is arranged on the other end of screw rod A.
As the further scheme of the present invention: the joint of screw rod A and screw rod B is without screw thread, and the screw diameter without screw thread place is not more than the internal thread diameter of screw rod B.
As the further scheme of the present invention: without screw rod B and nut A, and screw rod B is replaced with conehead, described conehead is fixedly mounted on one end tip position of screw rod A, and nut B is arranged on the screw rod A between conehead and nut B, and the expansion slot on nut B is relative with conehead.
Compared with prior art, the invention has the beneficial effects as follows: two kinds of setscrews provided by the invention, all can recycling, and required cost and former setscrew are more or less the same, and easy to use, be suitable for mass production.
Accompanying drawing explanation
Fig. 1 is the structural representation of screw rod in embodiment 1;
Fig. 2 is the structural representation of nut B;
Fig. 3 is the structural representation of nut A in embodiment 1;
Fig. 4 is the structural representation of nut A;
Fig. 5 is the structural representation of embodiment 1;
Fig. 6 is the structural representation of embodiment 2;
Fig. 7 is the structural representation of screw rod in embodiment 2;
In figure: 1-screw rod A, 2-nut A, 3-screw rod B, 4-nut A, 5-nut B, 6-nut B, 7-expansion slot, 8-conehead.
Embodiment
Below in conjunction with the embodiment of the present invention, be clearly and completely described the technological scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1
Refer to Fig. 1-Fig. 5, in the embodiment of the present invention, recyclable setscrew, comprises screw rod, nut and nut.Screw rod comprises screw rod A1 and screw rod B3, and nut comprises nut A2 and nut B6, and nut comprises nut A4 and nut B5.One end of screw rod A1 is connected with screw rod B3, and the joint of screw rod A1 and screw rod B3 is without screw thread, is not more than the internal thread diameter of screw rod B3, facilitates the movement of nut A2 without screw thread place screw diameter.The diameter of screw rod A1 is greater than the diameter of screw rod B3, and the screw thread of screw rod A1 and screw rod B3 is reverse, just because of the screw thread of screw rod A1 and screw rod B3 is reverse, if screw diameter is equal, nut A2 and nut B6 just cannot screw in; If the diameter of screw rod A1 is less than the diameter of screw rod B3, the expansion slot 7 of nut A2 can not be expanded by the extruding of the taper mouth of nut B6, does not have the effect of setscrew.Nut B5 is fixedly mounted on the middle part of screw rod A1.Nut B6 is arranged on screw rod A1, and between screw rod B3 and nut B5.One end of nut B6 offers expansion slot 7, and this end is near nut B5, and the number of expansion slot 7 sets according to actual needs.Nut A2 is arranged on screw rod B3, and one end of nut A2 is taper mouth, and this taper mouth is near screw rod A1.The height of taper mouth equals the length of expansion slot 7.Taper mouth is relative with expansion slot 7, and when being fixedly mounted by setscrew, taper mouth meeting extrusion expansion groove 7, can complete expansion action; When reclaiming setscrew, taper mouth withdraws expansion slot 7 place, and expansion slot 7 restores to the original state, convenient recovery.Nut B6 is equal with the external diameter of nut A2, facilitates nut B6 and nut A2 to do relative motion along screw rod A1 and screw rod B3 respectively when screwing in the hole of installing.Nut A4 is arranged on the other end of screw rod A1, and nut A4 is used for the fixing object needing to fix, and in use, object fixing for needs in the cofree precession of screw rod A1 or back-out, and can be fixed on the other end of screw rod A1 by nut A4.
The present invention in use, first nut A2 is screwed on screw rod A1, again nut B6 is screwed in screw rod B3, then setscrew is put into the hole of having bored, because there is friction in nut A2, nut B6 and hole, the bolt rotary as rotating nut B5, and nut A2 and nut B6 only can be moved in opposite directions due to the effect of screw rod A1 and screw rod B3 reverse thread, nut A2 moves right, nut B6 is then moved to the left, the expansion slot 7 of such nut B6 will be expanded by the extruding of the taper mouth of nut A2, so just makes screw rod be secured firmly.As counterrotating nut B5, nut A2 will separate with nut B6, and the expansion slot 7 expanded like this will restore to the original state, and screw rod is easily removed, reclaim.
Embodiment 2
Refer to Fig. 2, Fig. 4, Fig. 6-Fig. 7, in the embodiment of the present invention, recyclable setscrew, comprises screw rod A1, nut B6 and nut.Nut comprises nut A4 and nut B5.As different from Example 1, one end tip position of screw rod A1 is installed with conehead 8, and nut B6 is arranged on the screw rod A1 between conehead 8 and nut B5, and the expansion slot 7 on nut B6 is relative with conehead 8, without screw rod B3 and nut A2.The present invention in use, first nut B6 is screwed on the screw rod A1 between conehead 8 and nut B5, because there is friction in nut B6 and hole, as rotating nut B5, screw rod A1 rotates, nut B6 also can move to the direction of conehead 8 thereupon, the expansion slot 7 of such nut B6 will be extruded by conehead 8 and expand, and so just makes screw rod A1 be secured firmly.As counterrotating nut B5, conehead 8 will separate with nut B6, and the expansion slot 7 expanded like this will restore to the original state, and screw rod A1 is easily removed, reclaims.
The invention solves former setscrew unsightly again dangerous, remove after the difficult problem reclaimed, and required cost and former setscrew are more or less the same, easy to use, are suitable for mass production.
To those skilled in the art, obviously the invention is not restricted to the details of above-mentioned one exemplary embodiment, and when not deviating from spirit of the present invention or essential characteristic, the present invention can be realized in other specific forms.Therefore, no matter from which point, all should embodiment be regarded as exemplary, and be nonrestrictive, scope of the present invention is limited by claims instead of above-mentioned explanation, and all changes be therefore intended in the implication of the equivalency by dropping on claim and scope are included in the present invention.
In addition, be to be understood that, although this specification is described according to mode of execution, but not each mode of execution only comprises an independently technological scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should by specification integrally, and the technological scheme in each embodiment also through appropriately combined, can form other mode of executions that it will be appreciated by those skilled in the art that.
Claims (3)
1. recyclable setscrew, comprises screw rod, nut and nut, it is characterized in that, screw rod comprises screw rod A(1) and screw rod B(3), nut comprises nut A(2) and nut B(6), nut comprises nut A(4) and nut B(5); Screw rod A(1) one end and screw rod B(3) be connected, screw rod A(1) diameter be greater than screw rod B(3) diameter, and screw rod A(1) with screw rod B(3) screw thread be reverse, nut B(5) be fixedly mounted on screw rod A(1) middle part; Nut B(6) be arranged on screw rod A(1) on, and be positioned at screw rod B(3) and nut B(5) between; Nut B(6) one end offer expansion slot (7), and this end is near nut B(5); Nut A(2) be arranged on screw rod B(3) on, one end of nut A (2) is taper mouth, and this taper mouth is near screw rod A(1); The height of taper mouth equals the length of expansion slot (7); Nut B(6) with nut A(2) external diameter equal; Nut A (4) is arranged on screw rod A(1) the other end.
2. recyclable setscrew according to claim 1, is characterized in that, described screw rod A(1) with screw rod B(3) joint without screw thread, the screw diameter without screw thread place is not more than screw rod B(3) internal thread diameter.
3. recyclable setscrew according to claim 1, it is characterized in that, without screw rod B(3) and nut A(2), and by screw rod B(3) replace with conehead (8), described conehead (8) is fixedly mounted on screw rod A(1) one end tip position, nut B(6) be arranged on conehead 8 and nut B(5) between screw rod A(1) on, nut B(6) on expansion slot (7) relative with conehead (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410796632.3A CN104533908A (en) | 2014-12-19 | 2014-12-19 | Recoverable expansion screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410796632.3A CN104533908A (en) | 2014-12-19 | 2014-12-19 | Recoverable expansion screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104533908A true CN104533908A (en) | 2015-04-22 |
Family
ID=52849496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410796632.3A Pending CN104533908A (en) | 2014-12-19 | 2014-12-19 | Recoverable expansion screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104533908A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114422A (en) * | 2015-08-28 | 2015-12-02 | 腾志理 | Detachable expansion bolt |
| CN108392119A (en) * | 2017-02-07 | 2018-08-14 | 厦门松霖科技股份有限公司 | Used in the glove mechanism that can assemble and disassemble parcel shelf of shower |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008039091A (en) * | 2006-08-08 | 2008-02-21 | Prime Sangyo Kk | Fixing device for locking retention member |
| CN101392781A (en) * | 2008-11-03 | 2009-03-25 | 湖北文邦塑业有限公司 | Expansion bolt |
| CN202883593U (en) * | 2012-09-06 | 2013-04-17 | 宁发勇 | Expansion bolt capable of being extracted and used repeatedly |
| CN202946498U (en) * | 2012-10-21 | 2013-05-22 | 胡国贤 | Stress swelling screw |
| CN202955088U (en) * | 2012-12-25 | 2013-05-29 | 内蒙古工业大学 | Expansion screw |
| CN202991762U (en) * | 2012-12-28 | 2013-06-12 | 纵瑞全 | Demountable and reusable expansion screw |
-
2014
- 2014-12-19 CN CN201410796632.3A patent/CN104533908A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008039091A (en) * | 2006-08-08 | 2008-02-21 | Prime Sangyo Kk | Fixing device for locking retention member |
| CN101392781A (en) * | 2008-11-03 | 2009-03-25 | 湖北文邦塑业有限公司 | Expansion bolt |
| CN202883593U (en) * | 2012-09-06 | 2013-04-17 | 宁发勇 | Expansion bolt capable of being extracted and used repeatedly |
| CN202946498U (en) * | 2012-10-21 | 2013-05-22 | 胡国贤 | Stress swelling screw |
| CN202955088U (en) * | 2012-12-25 | 2013-05-29 | 内蒙古工业大学 | Expansion screw |
| CN202991762U (en) * | 2012-12-28 | 2013-06-12 | 纵瑞全 | Demountable and reusable expansion screw |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105114422A (en) * | 2015-08-28 | 2015-12-02 | 腾志理 | Detachable expansion bolt |
| CN108392119A (en) * | 2017-02-07 | 2018-08-14 | 厦门松霖科技股份有限公司 | Used in the glove mechanism that can assemble and disassemble parcel shelf of shower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20150422 |