CN110397647A - Reversed fastening screw - Google Patents
Reversed fastening screw Download PDFInfo
- Publication number
- CN110397647A CN110397647A CN201910705459.4A CN201910705459A CN110397647A CN 110397647 A CN110397647 A CN 110397647A CN 201910705459 A CN201910705459 A CN 201910705459A CN 110397647 A CN110397647 A CN 110397647A
- Authority
- CN
- China
- Prior art keywords
- compact heap
- screw
- screw sleeve
- screw rod
- outer circle
- 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.)
- Withdrawn
Links
- 230000007704 transition Effects 0.000 claims description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000007787 solid 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
- F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
- F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread
- F16B5/025—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread specially designed to compensate for misalignement or to eliminate unwanted play
Abstract
The invention discloses reversed fastening screws, it is characterized by comprising screw sleeves and screw rod, there is bias between the inner hole and outer circle of screw sleeve, screw rod is passed through from the inner hole of screw sleeve and is screwed on the inner hole thread of screw sleeve, the bottom part down of screw sleeve is equipped with compact heap, compact heap is connected to the lower rod end of screw rod, it can be relatively rotated between the two, the bottom end face of screw sleeve is fixed with limited block, limited block carries out circumferential limit to the rotation of compact heap, in no contact limited block, compact heap can rotate synchronously compact heap with screw rod；Compact heap is entirely located in extended space encircled by screw sleeve outer circle in rotation initial position, outer perimeter, and for compact heap in rotation ultimate position, the part of outer perimeter can leave extended space encircled by screw sleeve outer circle.The present invention can compress lower link from bottom direction, and solution bottom does not have space and lower link cannot open up the connector connectivity problem up and down under threaded hole occasion.
Description
Technical field
The present invention relates to a kind of fastener products, and in particular to a kind of reversed fastening screw.
Background technique
For the connection between upper and lower connector, bolt fastening can be many times used, is at this moment generally required down
Threaded hole will be arranged in the mounting hole of connector, be from bolt if threaded hole can not be arranged in the mounting hole of lower link
Bottom screw on nut, realize the fastening to lower link using screwing for nut, but when the bottom space of lower link very
Built in small, mounting hole or when nut cannot be arranged and pull, the connection of connector up and down at this moment will have problem.
Summary of the invention
In view of the deficiencies of the prior art, the purpose of the invention is to provide one kind can from bottom direction to lower link into
Row compresses, and solution bottom does not have space and lower link cannot open up the anti-of the connectivity problem of connector up and down under threaded hole occasion
To fastening screw.
The present invention is implemented by the following technical programs:
Reversed fastening screw, it is characterised in that: have including screw sleeve and screw rod, between the inner hole and outer circle of screw sleeve inclined
The heart, screw rod are passed through from the inner hole of screw sleeve and are screwed on the inner hole thread of screw sleeve, and the bottom part down of screw sleeve is equipped with pressure
Tight block, compact heap are connected to the lower rod end of screw rod, can be relatively rotated between compact heap and screw rod, the bottom end of screw sleeve
Face is fixed with limited block, and limited block carries out circumferential limit to the rotation of compact heap, and compact heap is compressed in no contact limited block
Block can be rotated synchronously with screw rod；Compact heap is enclosed in rotation initial position, the screw sleeve outer circle that is entirely located in of outer perimeter
In extended space out, in rotation ultimate position, the part of outer perimeter can leave screw sleeve outer circle and be crossed compact heap
Extended space.
The reversed fastening screw of above-mentioned technical proposal, working principle is: lower hold-down bolt is inserted into up and down from top to bottom
In the mounting hole of connector, the mounting hole of the outer circle of screw sleeve and upper connector using being interference fitted, when grafting in place after, it is past
It exiting screw sleeve direction and turns screw rod, compact heap is rotated synchronously with screw rod, after compact heap rotates maximum angle, compact heap meeting
Encounter limited block, then compact heap stops operating, and the outer perimeter of compact heap has had part to leave screw sleeve outer circle at this time
Encircled extended space continues to turn screw rod, and screw rod will drive compact heap lifting, makes compact heap to lower link from following side
To being compressed.Due to that can be compressed from bottom direction to lower link, so solving bottom does not have space and lower link
Part cannot open up the connector connectivity problem up and down under threaded hole occasion.
Preferably, being transition fit between the inner hole of the compact heap and the lower rod end outer circle of screw rod.Above-mentioned design knot
Structure is simple, can facilitate and realize that compact heap when will not hit on limited block, can be rotated synchronously with screw rod.
Detailed description of the invention
The present invention has following attached drawing:
Fig. 1 is the structural diagram of the present invention (compact heap is in rotation initial position),
Fig. 2 is the bottom direction view of Fig. 1,
Fig. 3 is structural schematic diagram of the invention (compact heap is in rotation ultimate position),
Fig. 4 is the bottom direction view of Fig. 3.
Specific embodiment
As shown, reversed fastening screw of the invention, including screw sleeve 1 and screw rod 2, the outer circle 4 of screw sleeve 1 with
It is interference fit between the mounting hole of upper link A, there is bias between the inner hole 3 of screw sleeve and the outer circle 4 of screw sleeve,
Screw rod 2 is passed through from the inner hole 3 of screw sleeve and is screwed on 3 screw thread of inner hole of screw sleeve, and the bottom part down of screw sleeve 1 is equipped with pressure
Tight block 5, compact heap 5 are connected to the lower rod end of screw rod 2, match between the inner hole of compact heap 5 and the lower rod end outer circle of screw rod 2 for transition
It closes, can be relatively rotated between compact heap 5 and screw rod 2, the lower rod end of screw rod 2 is fixedly connected with baffle ring 6, and baffle ring 6 is located at described
The lower section of compact heap 5, the bottom end face of screw sleeve 1 are fixed with limited block 8, and limited block 8 carries out the rotation of compact heap 5 circumferential
Limit, in no contact limited block 8, compact heap 5 can rotate synchronously compact heap 5 with screw rod 2；Compact heap 5 is in rotation start bit
(Fig. 1,2 shown in) is set, outer perimeter is entirely located in extended space encircled by screw sleeve outer circle 4, and compact heap 5 is turning
Dynamic ultimate position (Fig. 3,4 shown in), the part of outer perimeter can leave extended space encircled by screw sleeve outer circle 4.Pressure
Tight block 5 is for off-centre operation and with local notch 7, and local notch 7 corresponds to the block 8, and the outside diameter of off-centre operation is slightly less than screw rod
The outside diameter of sleeve 1, generally there is 0.5mm, and above-mentioned design can make compact heap its outer rim at maximum rotation angle position
Periphery has the part of maximum area to leave extended space encircled by screw sleeve outer circle, to realize to the reliable solid of lower link
Tightly.
Above-mentioned reversed fastening screw can compress lower link B from bottom direction, in use, by lower compression spiral shell
Bolt be inserted into from top to bottom upper link A, lower link B mounting hole in until grafting in place, due to the outer circle of screw sleeve 1
The mounting hole of 4 and upper connector A is using interference fit, so screw sleeve 1 can tighten together with upper link A, next,
Screw rod 2 is turned toward screw sleeve direction is exited, compact heap 5 is rotated synchronously with screw rod 2, after compact heap 5 rotates maximum angle, pressure
Tight block 5 can encounter limited block 8, and then compact heap 5 stops operating, and the outer perimeter of compact heap 5 has had part to leave spiral shell at this time
Extended space encircled by rod sleeve outer circle 4 continues to turn screw rod 2, and screw rod 2 will drive the lifting of compact heap 5, until compact heap 5
Lower link B is compressed, and then is realized from bottom direction to the compression of lower link B, solve bottom do not have space and under
Connector cannot open up the connectivity problem between upper link A and lower link B under threaded hole occasion.
Claims (2)
1. reversed fastening screw, it is characterised in that: including screw sleeve and screw rod, have between the inner hole and outer circle of screw sleeve
Bias, screw rod are passed through from the inner hole of screw sleeve and are screwed on the inner hole thread of screw sleeve, and the bottom part down of screw sleeve is equipped with
Compact heap, compact heap are connected to the lower rod end of screw rod, can be relatively rotated between compact heap and screw rod, the bottom of screw sleeve
End face is fixed with limited block, and limited block carries out circumferential limit to the rotation of compact heap, and compact heap is in no contact limited block, pressure
Tight block can be rotated synchronously with screw rod；Compact heap is entirely located in screw sleeve outer circle institute in rotation initial position, outer perimeter
In the extended space crossed, in rotation ultimate position, the part of outer perimeter can leave screw sleeve outer circle and be enclosed compact heap
Extended space out.
2. reversed fastening screw as described in claim 1, it is characterised in that: the inner hole of the compact heap and the lower rod end of screw rod
It is transition fit between outer circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910705459.4A CN110397647A (en) | 2019-08-01 | 2019-08-01 | Reversed fastening screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910705459.4A CN110397647A (en) | 2019-08-01 | 2019-08-01 | Reversed fastening screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110397647A true CN110397647A (en) | 2019-11-01 |
Family
ID=68327058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910705459.4A Withdrawn CN110397647A (en) | 2019-08-01 | 2019-08-01 | Reversed fastening screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110397647A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3956803A (en) * | 1973-06-04 | 1976-05-18 | Kajetan Leitner | Fastener |
| US4789287A (en) * | 1985-07-18 | 1988-12-06 | Nixdorf Computer Ag | Through bolt connection for unilaterally accessible locations |
| CN2621234Y (en) * | 2003-08-28 | 2004-06-23 | 李珊 | Expansion bolt assembly |
| US6997658B2 (en) * | 2003-10-20 | 2006-02-14 | Fly David E | Alignment pin and fastener with bi-directional clamping |
| CN101042152A (en) * | 2006-03-22 | 2007-09-26 | 希尔蒂股份公司 | Fastening element |
| US7686555B1 (en) * | 2007-02-06 | 2010-03-30 | Western Digital Technologies, Inc. | Wedge based fastener |
| CN102748354A (en) * | 2011-04-18 | 2012-10-24 | 喜利得股份公司 | Expansion anchor |
| US20140112732A1 (en) * | 2012-10-19 | 2014-04-24 | Electro-Motive Diesel, Inc. | Expanding Dowel Rod Structure |
| CN206738356U (en) * | 2017-03-25 | 2017-12-12 | 温州市胜隆标准件制造有限公司 | Eccentric bolt mechanism |
| CN206738352U (en) * | 2017-05-27 | 2017-12-12 | 长城汽车股份有限公司 | Eccentric bolt component and vehicle |
| US10144334B2 (en) * | 2017-02-15 | 2018-12-04 | Bnsf Logistics, Llc | Lashing securement pin |
| CN109356918A (en) * | 2018-12-06 | 2019-02-19 | 上海宝钢建筑工程设计有限公司 | A kind of fixing piece and its construction method for assembled installation |
-
2019
- 2019-08-01 CN CN201910705459.4A patent/CN110397647A/en not_active Withdrawn
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3956803A (en) * | 1973-06-04 | 1976-05-18 | Kajetan Leitner | Fastener |
| US4789287A (en) * | 1985-07-18 | 1988-12-06 | Nixdorf Computer Ag | Through bolt connection for unilaterally accessible locations |
| CN2621234Y (en) * | 2003-08-28 | 2004-06-23 | 李珊 | Expansion bolt assembly |
| US6997658B2 (en) * | 2003-10-20 | 2006-02-14 | Fly David E | Alignment pin and fastener with bi-directional clamping |
| CN101042152A (en) * | 2006-03-22 | 2007-09-26 | 希尔蒂股份公司 | Fastening element |
| US7686555B1 (en) * | 2007-02-06 | 2010-03-30 | Western Digital Technologies, Inc. | Wedge based fastener |
| CN102748354A (en) * | 2011-04-18 | 2012-10-24 | 喜利得股份公司 | Expansion anchor |
| US20140112732A1 (en) * | 2012-10-19 | 2014-04-24 | Electro-Motive Diesel, Inc. | Expanding Dowel Rod Structure |
| US10144334B2 (en) * | 2017-02-15 | 2018-12-04 | Bnsf Logistics, Llc | Lashing securement pin |
| CN206738356U (en) * | 2017-03-25 | 2017-12-12 | 温州市胜隆标准件制造有限公司 | Eccentric bolt mechanism |
| CN206738352U (en) * | 2017-05-27 | 2017-12-12 | 长城汽车股份有限公司 | Eccentric bolt component and vehicle |
| CN109356918A (en) * | 2018-12-06 | 2019-02-19 | 上海宝钢建筑工程设计有限公司 | A kind of fixing piece and its construction method for assembled installation |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107588078B (en) | A kind of bolt convenient for locking and can be locking | |
| CN206738347U (en) | A kind of anti-theft bolt | |
| CN110040674A (en) | A kind of portable device for releasing closures | |
| CN110397647A (en) | Reversed fastening screw | |
| CN209146124U (en) | Self-locking nut | |
| CN210565530U (en) | Forward and reverse two-way fastening screw | |
| CN110345140A (en) | Positive and negative bidirectional fastening screw | |
| CN105382756A (en) | Device for press fitting of diesel engine valve seat | |
| CN205798901U (en) | A kind of double end stud screwing instrument | |
| CN108843661A (en) | A kind of locking structure of the flexible body of rod | |
| CN209012239U (en) | A kind of automobile axle shaft nut | |
| CN208420219U (en) | A kind of heat watch case | |
| CN210397388U (en) | Screw sleeve of fastening screw | |
| CN209687899U (en) | Check bolt structure | |
| CN208801004U (en) | Nozzle component | |
| CN208880115U (en) | Automatically reset hydraulic elongator | |
| CN208117748U (en) | A kind of valve spring compressor | |
| CN209041978U (en) | Storage pressure tests fast connecting joint | |
| CN108194484A (en) | A kind of bolt convenient for locking and can be locking | |
| CN207246188U (en) | A kind of railroad rail rod assembly nut and its spanner | |
| CN209041290U (en) | A kind of integral type bolt arrangement with gasket | |
| CN207830316U (en) | A kind of small space fastener and the connection structure using the small space fastener | |
| CN206598172U (en) | A kind of million nuclear power high pressure valve discs and valve seat grinding device | |
| CN2572094Y (en) | Connection expansion sleeve quick assembling/disassembling by double conic ring | |
| CN110145531A (en) | A kind of cap nut that anti-theft performance is good |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20191101 |
|
| WW01 | Invention patent application withdrawn after publication |