CN106122214A - A kind of screw rivet - Google Patents
A kind of screw rivet Download PDFInfo
- Publication number
- CN106122214A CN106122214A CN201610827931.8A CN201610827931A CN106122214A CN 106122214 A CN106122214 A CN 106122214A CN 201610827931 A CN201610827931 A CN 201610827931A CN 106122214 A CN106122214 A CN 106122214A
- Authority
- CN
- China
- Prior art keywords
- section
- core bar
- rivet
- bar
- nail set
- 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
- 238000009434 installation Methods 0.000 claims abstract description 18
- 239000011148 porous material Substances 0.000 claims abstract description 14
- 210000003128 head Anatomy 0.000 claims description 28
- 239000000463 material Substances 0.000 claims description 16
- 230000007246 mechanism Effects 0.000 claims description 12
- 238000010008 shearing Methods 0.000 claims description 7
- 210000001331 nose Anatomy 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 230000002411 adverse Effects 0.000 abstract description 2
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 150000002739 metals Chemical class 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 238000011900 installation process Methods 0.000 description 2
- 238000005461 lubrication Methods 0.000 description 2
- 208000031481 Pathologic Constriction Diseases 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 210000001215 vagina Anatomy 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
- F16B19/00—Bolts without screw-thread; Pins, including deformable elements; Rivets
- F16B19/04—Rivets; Spigots or the like fastened by riveting
- F16B19/08—Hollow rivets; Multi-part rivets
- F16B19/10—Hollow rivets; Multi-part rivets fastened by expanding mechanically
- F16B19/1027—Multi-part rivets
- F16B19/1036—Blind rivets
- F16B19/1045—Blind rivets fastened by a pull - mandrel or the like
- F16B19/1072—Blind rivets fastened by a pull - mandrel or the like the pull-mandrel or the like comprising a thread and being rotated with respect to the rivet, thereby mechanically expanding and fastening the rivet
Abstract
The invention provides a kind of rivet, including core bar and nail set；Described core bar includes tapered section of head and bar segment, in described bar segment at least one section for setting threaded thread segment；Being provided with through hole along axle in described nail set, described through hole includes tapered with the head of described core bar section of tapered hole section coordinated of head pore section successively and is positioned at the straight hole section that the part of described nail set coordinates with the bar segment of described core bar；In described straight hole section at least one section for setting threaded screwed hole section, described screwed hole section partly or entirely can be engaged with the thread segment of described core bar installing in stroke of rivet；Described nail set can be by described through hole coaxial package on described core bar.Wherein, described thread segment and screwed hole section being partly or entirely engaged in installing stroke.The invention can economize on resources, and avoids the one-way pushing pressure type installation adverse effect to connected piece.
Description
Technical field
The invention belongs to anchor design processing technique field, particularly relates to a kind of screw rivet.
Background technology
Aero-Space etc. high-end be equipped in that configuration aspects is generally designed the compactest, these structures compact to design
It is the narrowest and small that part connects installing space, and plain bolt nut class securing member needs to carry out two-sided installation due to it, it is impossible to competent
The installation requirement of these occasions.Therefore, at these narrow spaces, the most all select the securing member that one side is installed, as loosed core
Rivet, push-press type rivet etc..
Self-plugging rivet when mounted, is dependent on clincher tool and self-plugging rivet is applied with thrust and pulling force, by rivet simultaneously
It is riveted on coupled plate, thrust and the sizableness of pulling force, does not results in coupled plate and occur bending and deformation.But self-plugging rivet
After mounting, all the core bar of drop can be thrown away, cause metals resources to waste.
The installation of push-press type rivet does not have throws away the situation that core bar causes metals resources to waste, but it was installed in riveting
Cheng Zhong, the power on connected piece that acts on is unidirectional, if coupled plate is the thinnest or material is the softest, is easy for making plate occur curved
Bent.
Summary of the invention
The invention is for solving the problems of the prior art, it is provided that a kind of screw rivet, it is possible to economize on resources, and keep away
Exempt from one-way pushing pressure type and the adverse effect to connected piece has been installed.
The rivet that the invention provides, including core bar and nail set；Described core bar includes tapered section of head and bar segment, described
In bar segment at least one section for setting threaded thread segment；Being provided with through hole along axle in described nail set, described through hole includes head successively
Tapered with the head of described core bar section of tapered hole section coordinated of pore section and with the bar segment of described core bar be positioned at described nail set
Part coordinate straight hole section；In described straight hole section at least one section for setting threaded screwed hole section, described screwed hole section can
Partly or entirely it is engaged with the thread segment of described core bar in the installation stroke of rivet；Described nail set can be same by described through hole
Axle sleeve is loaded on described core bar.Wherein, described thread segment and screwed hole section being partly or entirely engaged in installing stroke.
Wherein, the thread segment of described core bar is preferably located at the afterbody of described bar segment, and the screwed hole section of described nail set is preferred
The afterbody being positioned at described straight hole section, described core bar and nail set suit after, described nail set tail end face be positioned at described core bar
In thread segment.
Wherein, the head pore section of described nail set can be in isometrical column, it is also possible in the most internal to the tapered cone of end
Shape.
Wherein, the set head of described nail set can be in warhead shape, it is also possible to the column equal in external diameter.
Wherein, described nail puts and is provided with the first twisting mechanism.Described first twisting mechanism can be the set being opened in nail set
The twisting groove of tail end face；Can also be the set afterbody itself being configured with wrenching flats, such as, by described set Tail Shape
It is set to hexagonal columnar or four directions column etc. or from outer surface inwardly symmetrical offering, there is the recessed of plane on described set afterbody
Groove.
Wherein, described core bar is provided with the second twisting mechanism.Described second twisting mechanism can be twisting hole；Described twisting
Hole can be offered to central authorities from core bar tail end face, it is also possible to is additionally opened in the end of the noses being connected with core bar bar segment afterbody
On face；The cross section in described twisting hole can be the various shapes such as hexagon, square or in-line.
Wherein, the part bar segment of described core bar being not provided with screw thread is additionally provided with burr.Described burr is along outside described bar segment
Wall is uniform, can be in the curve with axis with certain angle, it is also possible to preferably in the straight line parallel with axis, it is also possible in
The geometrical pattern line of closed loop, such as the various shape such as circular, square.
Wherein, the part that can contact with each other between described core bar and nail set is also applied with lubrication.
Wherein, when, in the installation stroke of rivet, the length of action of thread segment and screwed hole section can be continuously according to throw line
Property when increasing, meet the relational expression group of following (1)-(4) between relevant design size and the material properties of rivet simultaneously:
Wherein, the external diameter of the sleeved rod portion 29 of D-nail set 2；
d1The big footpath of the screwed hole section 25 of-nail set 2；
The minimum diameter of the head pore section 22 of b-nail set 2；
σ1The yield strength of-nail set 2 materials；
τ1The shearing strength of-nail set 2 materials；
d2The diameter of the bar segment 12 of-core bar 1；
σ2The yield strength of-core bar 1 material；
τ2The shearing strength of-core bar 1 material；
The reach that L-installation preceding thread section 13 and screwed hole section 25 have been engaged.
The invention has the advantage of the following aspects: the design of (1) structure is the most exquisite, only two bulk-breakings, raw
Produce, easy to assembly；(2) after installing, core bar resides in installing hole completely, does not results in metals resources waste；(3) installation process
The twisting resistance driving screw thread is changed into the driving force of advance, because of the one-way pushing pressure of installation process, mounted piece will not be caused
Damage；(4) reasonable in design, installation reliability is high, and tightness is good, is not susceptible to loose or dislocation after installation.
Accompanying drawing explanation
Fig. 1 is the overall structure schematic diagram of a kind of embodiment of the invention；
Fig. 2 is the structural representation following closely set in Fig. 1；
Fig. 3 is the left view of Fig. 2；
Fig. 4 is the structural representation of core bar in Fig. 1；
Fig. 5 is the left view of Fig. 4；
Fig. 6 is the structural representation after Fig. 1 installs；
Fig. 7 is the another embodiment structural representation of nail set；
Fig. 8 is the left view of Fig. 7；
Fig. 9 is the another embodiment structural representation of core bar；
Figure 10 is the left view of Fig. 9.
Wherein, 1-core bar；Tapered section of 11-head；12-bar segment；13-thread segment；14-twisting hole；15-noses；16-is convex
Stricture of vagina；2-follows closely set；21-through hole；22-head pore section；23-tapered hole section；24-straight hole section；25-screwed hole section；26-overlaps afterbody；
27-overlaps head；28-twisting groove；29-sleeved rod portion.
Detailed description of the invention
Below by combining accompanying drawing, the invention is further described.
The invention structure one embodiment as Figure 1-10 shows, including core bar 1 and nail set 2；Described core bar 1 includes
Tapered section 11 of head and bar segment 12, in described bar segment 12 at least one section for setting threaded thread segment 13；Along axle in described nail set 2
Being provided with through hole 21, described through hole 21 includes that head pore section 22 is tapered with what the head of described core bar 1 coordinated for tapered section 11 successively
Hole section 23 and be positioned at the straight hole section 24 that coordinates of part of described nail set 2 with the bar segment 12 of described core bar 1；Described straight hole section 24
Inside at least one section for setting threaded screwed hole section 25, described screwed hole section 25 can in the installation stroke of rivet with described core
The thread segment 13 of bar 1 is partly or entirely engaged；Described nail set 2 can by described through hole 21 coaxial package in described core bar 1 it
On.Wherein, described thread segment 13 and screwed hole section 25 being partly or entirely engaged in installing stroke, it is not required that exist therebetween
During core bar 1 moves, the occlusion position of thread segment 13 and/or screwed hole section 25 is the most identical, as long as move at core bar 1
During, have between thread segment 13 and screwed hole section 25 that the screw thread lap that is mutually twisted can (this be mutually twisted all the time
Screw thread lap it may happen that mobile or conversion), so can ensure that core bar 1 provides, by screwing of screw thread, advance dynamic
Power.
The rivet (such as Fig. 1) assembled when mounted, is inserted in the installing hole of part to be riveted by the invention, and by following closely
The set afterbody 26 of set 2 is spacing with installing hole fixing, screws core bar 1 so that core bar 1 is in thread segment 13 and the occlusion of screwed hole section 25
Front motion vertically under effect, while core bar 1 travels forward, tapered section 11 head pore section 22 to nail set 2 of its head is executed
Add active force so that the set head 27 of nail set 2 is softened from the part of head pore section 22, and the set head 27 of nail set 2 is softened
Rear deformation and part to be riveted installing hole periphery formed bulge, it is achieved the stuck fastening of rivet.The set head of nail set 2 after installation
27 clamp core bar 1 under restoring force effect, it is achieved core bar 1 locked.After installation, (such as Fig. 6), core bar 1 resides in inside installing hole,
Maintain fastening together with nail set 2, and carry External shearing forces, improve fastening stability.
Wherein, the thread segment 13 of described core bar 1 is preferably located at the afterbody of described bar segment 12, the screwed hole of described nail set 2
After section 25 is preferably located at the afterbody of described straight hole section 24, described core bar 1 and nail set 2 suit, the tail end face position of described nail set 2
In the thread segment 13 of described core bar 1.As Fig. 2,7.
Wherein, the head pore section 22 of described nail set 2 can be in isometrical column (Fig. 2), it is also possible in the most internal to end
Tapered taper (Fig. 7).
Wherein, the set head 27 (being positioned at the one end at head pore section 22 place) of described nail set 2 (can be schemed in warhead shape
2), it is also possible to the column (Fig. 7) equal in external diameter, or in other shapes designed as required.
Wherein, described nail set 2 is provided with the first twisting mechanism.Described first twisting mechanism can be to be opened in nail set 2
The twisting groove 28 (Fig. 3) of set afterbody 26 (being positioned at the one end entered for core bar 1) end face；Can also be for being configured with wrenching flats
Set afterbody 26 itself, such as, described set afterbody 26 profile is set to hexagonal columnar (Fig. 7) or four directions column etc. or
Offer the groove with plane from outer surface inwardly symmetry on described set afterbody 26.
Wherein, described core bar 1 is provided with the second twisting mechanism.Described second twisting mechanism can be twisting hole 14；Described
Twisting hole 14 can offer (Fig. 5) from core bar 1 tail end face to central authorities, it is also possible to is additionally opened in and core bar 1 bar segment 12 afterbody
On the end face of the noses 15 (Fig. 9) connected the twisting ability of twisting hole 14 (setting of noses 15 can increase)；Described pull
The cross section twisting hole 14 can be the various shapes such as hexagon, square or in-line (Figure 10).
Wherein, the part that the bar segment 12 of described core bar 1 is not provided with screw thread is additionally provided with burr 16, and described burr 16 can increase
Frictional force between big core bar 1 and nail set 2, after preventing from installing, core bar 1 loosening in nail set 2, improves installation reliability.Described
Burr 16 is uniform along described bar segment 12 outer wall, can be in the curve with axis with certain angle, it is also possible to preferably in axle
The straight line (Fig. 9) that line is parallel, it is also possible to the geometrical pattern line in closed loop, such as the various shape such as circular, square.
Wherein, the part that can contact with each other between described core bar 1 and nail set 2 is also applied with lubrication, such as at described nail
Lubricator is coated on the inwall of the through hole 21 of set 2.
Wherein, when, in the installation stroke of rivet, the length of action of thread segment 13 and screwed hole section 25 can be continuously according to row
When journey is linearly increasing, between relevant design size and the material properties of rivet, meet the relational expression group of following (1)-(4) simultaneously:
Wherein, the external diameter of the sleeved rod portion 29 of D-nail set 2；
d1The big footpath of the screwed hole section 25 of-nail set 2；
The minimum diameter of the head pore section 22 of b-nail set 2；
σ1The yield strength of-nail set 2 materials；
τ1The shearing strength of-nail set 2 materials；
d2The diameter of the bar segment 12 of-core bar 1；
σ2The yield strength of-core bar 1 material；
τ2The shearing strength of-core bar 1 material；
The reach that L-installation preceding thread section 13 and screwed hole section 25 have been engaged.
Under conditions of rivet meets above-mentioned relation formula group, suitably increase d2The set head 27 being conducive to nail set 2 is straight after strutting
The increase in footpath, but rivet deformation drag can be increased simultaneously and reduce the structural strength of nail set 2.Excessively increase d2May result in riveting
When connecing, threaded engagement stripped thread or nail set 2 tear are disrumpent feelings；Suitably increase b and can reduce rivet deformation drag, but after riveting being reduced
Nail set 2 set head 27 strut diameter；Suitably increase the stripped thread phenomenon of screw thread when L can avoid riveting.If the design of rivet
Size is unsatisfactory for any one in above-mentioned formula, then can be easily caused and rivet unsuccessfully.
According to above-mentioned relation formula group, in this case, each relative dimensions of rivet of embodiment 1 (rivet shown in Fig. 1-5) is as follows: D
=10mm, d1=8mm, b=4.5mm, σ1=400MPa, τ1=330MPa, d2=6mm, σ2=820MPa, τ2=660MPa, L=
4mm。
According to above-mentioned relation formula group, in this case, the nail set in embodiment 1 (is replaced with the nail shown in Fig. 7-8 by embodiment 2
Set) each relative dimensions of rivet as follows: D=8mm, d1=6.4mm, b=3.6mm, σ1=280MPa, τ1=230MPa, d2=
4.8mm, σ2=820MPa, τ2=660MPa, L=4mm.
The foregoing is only the preferred embodiment of the invention, not in order to limit the invention, all at this
Within the spirit of innovation and creation and principle, any modification, equivalent substitution and improvement etc. made, should be included in the invention
Protection domain within.
Claims (10)
1. a rivet, including core bar and nail set；Described core bar includes tapered section of head and bar segment, in described bar segment at least one section
For setting threaded thread segment；Being provided with through hole along axle in described nail set, described through hole includes head pore section and described core successively
Tapered hole section that tapered section of the head of bar coordinates and be positioned at the straight hole that coordinates of part of described nail set with the bar segment of described core bar
Section；In described straight hole section at least one section for setting threaded screwed hole section, described screwed hole section can be at the installation stroke of rivet
In be partly or entirely engaged with the thread segment of described core bar；Described nail set can be by described through hole coaxial package in described core bar
On.Wherein, described thread segment and screwed hole section being partly or entirely engaged in installing stroke.
Rivet the most according to claim 1, it is characterised in that the thread segment of described core bar is preferably located at described bar segment
Afterbody, after the screwed hole section of described nail set is preferably located at the afterbody of described straight hole section, described core bar and nail set suit, described nail
The tail end face of set is positioned at the thread segment of described core bar.
Rivet the most according to claim 1, it is characterised in that described nail set head pore section can in isometrical column or
Tapered taper.
Rivet the most according to claim 1, it is characterised in that described nail set set head be warhead shape or external diameter equal
Column.
Rivet the most according to claim 1, it is characterised in that described nail puts and is provided with the first twisting mechanism.
Rivet the most according to claim 5, it is characterised in that described first twisting mechanism is the set afterbody being opened in nail set
The twisting groove of end face；Or be the set afterbody itself being configured with wrenching flats.
Rivet the most according to claim 1, it is characterised in that described core bar is provided with the second twisting mechanism.
Rivet the most according to claim 7, it is characterised in that described second twisting mechanism is twisting hole；Described twisting hole
Offer to central authorities from core bar tail end face, or be additionally opened on the end face of the noses being connected with core bar bar segment afterbody.
Rivet the most according to claim 1, it is characterised in that the part being not provided with screw thread in the bar segment of described core bar also sets
There is burr.
Rivet the most according to claim 1, it is characterised in that when in the installation stroke of rivet, thread segment and screwed hole
When the length of action of section can increase according to stroke linear continuously, meet between relevant design size and the material properties of rivet simultaneously
The relational expression group of following (1)-(4):
Wherein, the external diameter of the sleeved rod portion 29 of D-nail set 2；
d1The big footpath of the screwed hole section 25 of-nail set 2；
The minimum diameter of the head pore section 22 of b-nail set 2；
σ1The yield strength of-nail set 2 materials；
τ1The shearing strength of-nail set 2 materials；
d2The diameter of the bar segment 12 of-core bar 1；
σ2The yield strength of-core bar 1 material；
τ2The shearing strength of-core bar 1 material；
The reach that L-installation preceding thread section 13 and screwed hole section 25 have been engaged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610827931.8A CN106122214A (en) | 2016-09-14 | 2016-09-14 | A kind of screw rivet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610827931.8A CN106122214A (en) | 2016-09-14 | 2016-09-14 | A kind of screw rivet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106122214A true CN106122214A (en) | 2016-11-16 |
Family
ID=57271262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610827931.8A Pending CN106122214A (en) | 2016-09-14 | 2016-09-14 | A kind of screw rivet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106122214A (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2616328A (en) * | 1951-02-01 | 1952-11-04 | William F Mathias Jr | Fastener |
| CN1160130A (en) * | 1996-03-19 | 1997-09-24 | 吴明欣 | Expansion bolt |
| CN2285846Y (en) * | 1995-12-10 | 1998-07-08 | 许越男 | Expansion nail |
| CN2319613Y (en) * | 1996-11-05 | 1999-05-19 | 吴明欣 | High effective expansive screw |
| CN2378565Y (en) * | 1999-06-01 | 2000-05-17 | 李小明 | Expanded pin with new structure |
| CN2644752Y (en) * | 2003-09-08 | 2004-09-29 | 孟繁伟 | Expansion screw bolt |
| CN201027744Y (en) * | 2007-03-30 | 2008-02-27 | 刘长福 | Mandrel driven-in type expanding screw bolt |
| CN201636161U (en) * | 2010-04-14 | 2010-11-17 | 王军 | Insert type expansion screw |
| CN202690658U (en) * | 2012-07-11 | 2013-01-23 | 杨东佑 | Multifunctional screw convenient for dismounting |
-
2016
- 2016-09-14 CN CN201610827931.8A patent/CN106122214A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2616328A (en) * | 1951-02-01 | 1952-11-04 | William F Mathias Jr | Fastener |
| CN2285846Y (en) * | 1995-12-10 | 1998-07-08 | 许越男 | Expansion nail |
| CN1160130A (en) * | 1996-03-19 | 1997-09-24 | 吴明欣 | Expansion bolt |
| CN2319613Y (en) * | 1996-11-05 | 1999-05-19 | 吴明欣 | High effective expansive screw |
| CN2378565Y (en) * | 1999-06-01 | 2000-05-17 | 李小明 | Expanded pin with new structure |
| CN2644752Y (en) * | 2003-09-08 | 2004-09-29 | 孟繁伟 | Expansion screw bolt |
| CN201027744Y (en) * | 2007-03-30 | 2008-02-27 | 刘长福 | Mandrel driven-in type expanding screw bolt |
| CN201636161U (en) * | 2010-04-14 | 2010-11-17 | 王军 | Insert type expansion screw |
| CN202690658U (en) * | 2012-07-11 | 2013-01-23 | 杨东佑 | Multifunctional screw convenient for dismounting |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161116 |
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| RJ01 | Rejection of invention patent application after publication |