CN106438626B - A kind of reusable expansion bolt and preparation method thereof - Google Patents
A kind of reusable expansion bolt and preparation method thereof Download PDFInfo
- Publication number
- CN106438626B CN106438626B CN201610832575.9A CN201610832575A CN106438626B CN 106438626 B CN106438626 B CN 106438626B CN 201610832575 A CN201610832575 A CN 201610832575A CN 106438626 B CN106438626 B CN 106438626B
- Authority
- CN
- China
- Prior art keywords
- bolt
- expansion
- chamber
- parts
- waist
- 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.)
- Active
Links
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 9
- 230000008569 process Effects 0.000 claims abstract description 7
- 238000000576 coating method Methods 0.000 claims description 44
- 239000011248 coating agent Substances 0.000 claims description 35
- 229920000642 polymer Polymers 0.000 claims description 31
- 239000000843 powder Substances 0.000 claims description 29
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims description 18
- KGBXLFKZBHKPEV-UHFFFAOYSA-N boric acid Chemical compound OB(O)O KGBXLFKZBHKPEV-UHFFFAOYSA-N 0.000 claims description 18
- 239000004327 boric acid Substances 0.000 claims description 18
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 claims description 16
- 229910021502 aluminium hydroxide Inorganic materials 0.000 claims description 16
- 229940024545 aluminum hydroxide Drugs 0.000 claims description 16
- 239000004593 Epoxy Substances 0.000 claims description 15
- 229920002050 silicone resin Polymers 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 14
- 239000002994 raw material Substances 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000004734 Polyphenylene sulfide Substances 0.000 claims description 7
- 229910052751 metal Inorganic materials 0.000 claims description 7
- 239000002184 metal Substances 0.000 claims description 7
- 229920000069 polyphenylene sulfide Polymers 0.000 claims description 7
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 6
- 239000008367 deionised water Substances 0.000 claims description 5
- 229910021641 deionized water Inorganic materials 0.000 claims description 5
- 239000011159 matrix material Substances 0.000 claims description 5
- FKBMTBAXDISZGN-UHFFFAOYSA-N 5-methyl-3a,4,5,6,7,7a-hexahydro-2-benzofuran-1,3-dione Chemical compound C1C(C)CCC2C(=O)OC(=O)C12 FKBMTBAXDISZGN-UHFFFAOYSA-N 0.000 claims description 3
- JLTDJTHDQAWBAV-UHFFFAOYSA-N N,N-dimethylaniline Chemical compound CN(C)C1=CC=CC=C1 JLTDJTHDQAWBAV-UHFFFAOYSA-N 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 claims description 3
- YYLGKUPAFFKGRQ-UHFFFAOYSA-N dimethyldiethoxysilane Chemical compound CCO[Si](C)(C)OCC YYLGKUPAFFKGRQ-UHFFFAOYSA-N 0.000 claims description 3
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 3
- HZBAVWLZSLOCFR-UHFFFAOYSA-N oxosilane Chemical compound [SiH2]=O HZBAVWLZSLOCFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 238000005292 vacuum distillation Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims 1
- VDGJOQCBCPGFFD-UHFFFAOYSA-N oxygen(2-) silicon(4+) titanium(4+) Chemical compound [Si+4].[O-2].[O-2].[Ti+4] VDGJOQCBCPGFFD-UHFFFAOYSA-N 0.000 claims 1
- 229920001296 polysiloxane Polymers 0.000 claims 1
- 238000012719 thermal polymerization Methods 0.000 claims 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 24
- 239000000377 silicon dioxide Substances 0.000 description 12
- 239000000758 substrate Substances 0.000 description 10
- 238000005260 corrosion Methods 0.000 description 8
- 230000007797 corrosion Effects 0.000 description 8
- 238000009434 installation Methods 0.000 description 7
- 230000000052 comparative effect Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000003712 anti-aging effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000004132 cross linking Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 238000004455 differential thermal analysis Methods 0.000 description 1
- LTYMSROWYAPPGB-UHFFFAOYSA-N diphenyl sulfide Chemical compound C=1C=CC=CC=1SC1=CC=CC=C1 LTYMSROWYAPPGB-UHFFFAOYSA-N 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 230000009477 glass transition Effects 0.000 description 1
- 238000002513 implantation Methods 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 239000004408 titanium dioxide Substances 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
- 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
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D183/00—Coating compositions based on macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon, with or without sulfur, nitrogen, oxygen, or carbon only; Coating compositions based on derivatives of such polymers
- C09D183/04—Polysiloxanes
- C09D183/06—Polysiloxanes containing silicon bound to oxygen-containing groups
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- 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
- F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/08—Stabilised against heat, light or radiation or oxydation
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Inorganic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Dowels (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
A kind of reusable expansion bolt provided by the invention and preparation method thereof, expansion bolt includes inner bolt and the outer expansion set for being releasably coupled inner bolt, inner bolt includes bolt body and the enlarged head for being set to bolt body end, from the end of bolt body, radially outwardly one annular extends enlarged head, outer expansion set includes body and integrally from body song to the convex ridge portion protruded out, body is equipped with limit chamber and expansion chamber, limit chamber is set to the front of body, limit chamber adapts to the enlarged head of inner bolt, the diameter of expansion chamber is less than the diameter of limit chamber.To which the expansion bolt structure is simple, use and remove convenient, it can be achieved that reusing, while effectively avoiding destroying wall body structure in demolishing process.
Description
Technical field
The present invention relates to basic implantation piece fields, specifically, being a kind of reusable expansion bolt and its preparation
Method.
Background technique
Expansion bolt is one of the very extensive fastener applied in civil engineering finishing and water and electricity installation project, in addition, right
It is not to have highly important effect in extra high equipment installation in some intensity requirements yet.
Conventional expansion bolt is made of dormant bolt, tube expansion, plain washer, spring pad and hex nut.In use, must be first
The hole of corresponding size is drilled out on fixed body with electric impact drill (hammer), then in bolt, tube expansion load hole, tightening nut can make
Swelling is integrally formed between bolt, tube expansion, installation part and fixed body.Dilatable after tightening, bolt tail has a major part,
The outer surface cover one of bolt round tube more slightly larger than the diameter of bolt, the tail portion road part You Ji opening, after bolt is tightened, major part
Tail portion be just brought to inside the pipe of opening, pipe is rushed big, achievees the purpose that expansion, so bolt be fixed on ground or
On wall, achieve the purpose that take root.
It is difficult to remove after existing expansion bolt installation currently on the market, it is difficult to Reusability, after installation, it is difficult to from
It takes out, can only be used as medical disposable material in wall, not only cause the waste of material, but also show the expansion outside wall
Bolt also will affect aesthetics, interfere change installation.
Summary of the invention
The main purpose of the present invention is to provide a kind of reusable expansion bolts and preparation method thereof, have knot
Structure is simple, uses and remove convenient, it can be achieved that reusing, while effectively avoiding destroying wall body structure in demolishing process.
Another object of the present invention is to provide a kind of reusable expansion bolts and preparation method thereof, effectively mention
The heat resistance and corrosion resistance of high inner bolt not only contribute to the service life for increasing inner bolt, are also beneficial to increase expanding screw
The use reliability of bolt.
To achieve the above objectives, the technical solution adopted by the present invention are as follows: a kind of reusable expansion bolt includes interior
Bolt and the outer expansion set for being releasably coupled the inner bolt, the inner bolt include bolt body and are set to the spiral shell
The enlarged head of bolt body end, from the end of the bolt body, radially outwardly one annular extends the enlarged head,
The outer expansion set is expansively socketed the inner bolt, and the outer expansion set includes body and integrally from the body song to convex
The convex ridge portion stretched, the body are equipped with limit chamber and expansion chamber, and the limit chamber is set to the front of the body, the limit
Position chamber adapts to the enlarged head of the inner bolt, and the diameter of the expansion chamber is less than the diameter of the limit chamber.
An embodiment according to the present invention, the convex ridge portion are symmetrically disposed on the radially opposite sides of the body, compartment of terrain
Extend along the body outer wall downward spiral, the convex ridge portion is convex sword structure.
An embodiment according to the present invention, the outer expansion set are frustum cone structure, and the outer expansion set is equipped with upper surface and lower end
Face, the diameter of the upper surface are greater than the diameter of the lower end surface, and the convex ridge portion prolongs from the upper end towards the lower end surface
The width stretched is gradually reduced.
An embodiment according to the present invention, the body further comprise accommodating chamber and positioning chamber, and the accommodating chamber is located at
Above the expansion chamber, limit chamber and the accommodating chamber described in the expansion chamber connection, the diameter of the accommodating chamber are greater than described
Limit chamber, the positioning chamber are evenly spaced the upper surface for being set to the outer expansion set.
An embodiment according to the present invention, the body are equipped with outward opening and interior arc angle, limit described in the outward opening connection
Position chamber and the external world, the interior arc angle are set to the inside of the limit chamber, and the diameter of the outward opening is less than the enlarged head
Diameter.
An embodiment according to the present invention, the bolt body include shank and integrally extend downwardly from the shank
Waist, the shank have external screw thread, and the upper waist is set between the shank and the lower waist, and the upper waist is
Hexagonal waist, the lower waist is interior to be equipped with inscribed chamber, and the bolt body is further provided with internal screw thread, and the internal screw thread is set to
In the inscribed chamber.
An embodiment according to the present invention, the outer expansion set is plastic part, and the inner bolt is using metal as matrix, in institute
The outer surface for stating metallic matrix is coated with ovenable polymeric coatings.
An embodiment according to the present invention, the raw material of the ovenable polymeric coatings of the inner bolt is in parts by weight by following
Group is grouped as: 100 parts of doping epoxy modified silicone resins of pps powder, 10~20 parts of nano silicas, 10~
30 parts of aluminium-hydroxide powders and 5~15 parts of boric acid.
An embodiment according to the present invention, the raw material of the ovenable polymeric coatings of the inner bolt is in parts by weight by following
Group is grouped as: epoxy modified silicone resin, 12 parts of nano silicas, the 18 parts of hydrogen-oxygens of 100 parts of doping pps powders
Change aluminium powder and 10 parts of boric acid.
A kind of ovenable polymeric coatings preparation method of inner bolt comprising step:
(a) sol-gal process prepares prepolymer, by three oxosilane of 100g methyl, 50g dimethyl diethoxysilane, 150g
Toluene is uniformly mixed, then the hydrochloric acid solution that 4g mass fraction is 36.5% is added dropwise, and 60g scattered polyphenylene sulfide is then added dropwise
Deionized water be uniformly mixed, deionized water/polyphenylene sulfide powder mass ratio be 5: 1, the back flow reaction 5h at 65 DEG C, through washing in
Toluene equal solvent is removed with rear vacuum distillation, obtains prepolymer；And
(b) adding assistant solidifies, by the prepolymer of corrresponding quality score, 4- methyl hexahydrophthalic anhydride, dimethylaniline, nanometer two
Silica, aluminium hydroxide, boric acid, which are uniformly mixed, obtains polymer coating liquid, is then equably coated in the polymer coating liquid
Inner bolt surface solidifies 2h at 60 DEG C.
Detailed description of the invention
Fig. 1 is a kind of perspective view of reusable expansion bolt according to one preferred embodiment of the present invention.
Fig. 2 is the perspective view of the inner bolt of above preferred embodiment according to the present invention.
Fig. 3 is the cross-sectional view of the inner bolt of above preferred embodiment according to the present invention.
Fig. 4 is the perspective view of the outer expansion set of above preferred embodiment according to the present invention.
Fig. 5 A is the side view of the outer expansion set of above preferred embodiment according to the present invention.
Fig. 5 B is the cross-sectional view of the outer expansion set of above preferred embodiment according to the present invention (along A-A1 section view in Fig. 5 A).
Fig. 6 A is the lower view of the outer expansion set of above preferred embodiment according to the present invention.
Fig. 6 B is the cross-sectional view of the outer expansion set of above preferred embodiment according to the present invention (along B-B1 section view in Fig. 6 A)
Specific embodiment
It is described below for disclosing the present invention so that those skilled in the art can be realized the present invention.It is excellent in being described below
Embodiment is selected to be only used as illustrating, it may occur to persons skilled in the art that other obvious modifications.
It is a kind of reusable expansion bolt 1, the reusable expansion bolt as shown in Fig. 1 to Fig. 6 B
1 includes inner bolt 10 and the outer expansion set 20 for being releasably coupled the inner bolt 10, and the inner bolt 10 includes bolt body
11 and it is set to the enlarged head 12 of 11 end of bolt body, the enlarged head 12 is from the end of the bolt body 11
Radially outwardly one annular extends in portion, and the outer expansion set 20 is expansively socketed the inner bolt 10, and the outer expansion set 20 wraps
Include body 21 and integrally bent to the convex ridge portion 22 protruded out from the body 21, the body 21 be equipped with limit chamber 211 and
Expansion chamber 212, the limit chamber 211 are set to the front of the body 21, and the limit chamber 211 adapts to the inner bolt 10
Enlarged head 12, the diameter of the expansion chamber 212 is less than the diameter of the limit chamber 211, thus the expansion of the inner bolt 10
Enlarged head 12 is able to reversibly reach the limit chamber 211 across the expansion chamber 212, is installed on the limit chamber to limit
In 211 or the enlarged head 12 of the inner bolt 10 is able to the movement from the limit chamber 211 to the expansion chamber 212, is able to
The expansion chamber 212 is expanded, when the enlarged head 12 of the inner bolt 10 is in the expansion chamber 212, is able to described in expansion
Outer expansion set 20 so that 1 structure of the expansion bolt is simple, uses and the side of dismounting so that the convex ridge portion 22 is fixed in substrate
Just it, it can be achieved that reusing, while effectively avoiding destroying wall body structure in demolishing process.
Wherein, the convex ridge portion 22 is symmetrically disposed on the radially opposite sides of the body 21, and compartment of terrain is along the body
21 outer wall downward spirals extend, and the convex ridge portion 22 is convex sword structure, and the convex sword structure refers to 22 outside of convex ridge portion
Width is less than the inboard width in the convex ridge portion 22, that is to say, that the width that the convex ridge portion 22 is protruded outward from the body 21
Degree is gradually reduced, the tapered structure of shear surface, and the forced area being reduced between the convex ridge portion 22 and substrate helps to increase
The shearing force in the strong convex ridge portion 22 is conducive to so that the shearing friction power between the convex ridge portion 22 and substrate hole wall enhances
The convex ridge portion 22 is able to quickly be fixed in wall when being squeezed by expansion, and the convex sword structure in the convex ridge portion 22 is also beneficial to
It deeper squeezes into wall, the surface texture without damaging the convex ridge portion 22, simultaneously as the double helix in the convex ridge portion 22
Structure, when expansion, obtains so that substrate uniform force, the lateral movement of the outer expansion set 20 is effectively avoided in use process, so that institute
The grasping force for stating outer expansion set 20 gets a promotion, and enhances the friction bond stress between the outer expansion set 20 and substrate, prevents described outer
Expansion set 20 is axial in use to be removed, to help to enhance the global reliability of the expansion bolt 1, safety and steady
It is qualitative, as shown in Figure 5 B.
The convex ridge portion 22 is structure as a whole with the body 21, is replaced by the convex ridge portion 22 and traditional is equipped with several roads
The expansion piece of opening is also beneficial to enhance the intensity of the outer expansion set 20, extends the service life of the outer expansion set 20.
The outer expansion set 20 is frustum cone structure, and the outer expansion set 20 is equipped with upper surface 201 and lower end surface 202, the upper end
The diameter in face 201 be greater than the lower end surface 202 diameter, the convex ridge portion 22 from the upper surface 201 radially outward, spiral to
Extend lowerly to the lower end surface 202, the width that the convex ridge portion 22 extends from the upper surface 201 to the lower end surface 202
It is gradually reduced, is conducive to the corresponding expansion of convex ridge portion 22 of the expansion chamber 212 and squeezes at substrate hole wall, in other words,
Since the expansion chamber 212 of the outer expansion set 20 can be expanded by the enlarged head 12, the expansion of the expansion chamber 212
Distance is moved radially apart from the convex ridge portion 22 for directly determining downside, when the enlarged head 12 is located at the expansion chamber
When 212, the convex ridge portion 22 of downside moves radially distance and moves radially distance greater than the convex ridge portion 22 of upside, is conducive to
The consistency that the convex ridge portion 22 is contacted with wall promotes the integral strength and mounting stability of the expansion bolt 1.It is described convex
Spine 22, which can also preferably guide, pours liquid filling and is bonded the expansion bolt 1 seamlessly.
The body 21 further comprises accommodating chamber 213 and positioning chamber 214, and the accommodating chamber 213 is located at the expansion chamber
Above 212, limit chamber 211 and the accommodating chamber 213 described in 212 connection of expansion chamber, the diameter of the accommodating chamber 213 are greater than
The limit chamber 211, the positioning chamber 214 are evenly spaced the upper surface 201 for being set to the outer expansion set 20, are convenient for expanding screw
The installation and dismantling operation of bolt 1.
Wherein, the body 21 is equipped with outward opening 216 and interior arc angle 215, limit chamber described in 216 connection of outward opening
211 and extraneous, the interior arc angle 215 is set to the inside of the limit chamber 211, and the diameter of the outward opening 216 is less than described
The diameter of enlarged head 12 makes the enlarged head 12 be able to be placed in the limit chamber 211 by the interior arc angle 215,
And there is certain rotatable space in the limit chamber 211, the inner bolt 10 can effectively limit while axial rotation
It is formed in the limit chamber 211, can not be detached from from outward opening 216, enhance the engagement of the inner bolt 10 and the outer expansion set 20
Fastness.
The outer expansion set 20 is plastic part, has certain reversible dilatancy, the enlarged head 12 of the inner bolt 10 can
Repeatedly traverse the expansion chamber 212, the expansion chamber 212 by the enlarged head 12 of the inner bolt 10 extruding and expand
, when the enlarged head 12 is detached from the expansion chamber 212, the outer expansion set 20 can be gradually recovered original state, convenient for subsequent
Dismantling operation, but also the expansion bolt 1 in substrate is removed conveniently, enhances wall to can not only save consumptive material
Aesthetics.
The bolt body 11 includes shank 112 and the waist integrally extended downwardly from the shank 112, the shank
112 have external screw thread, and convenient for connecting other objects, such as supporting tool can be by the enlarged head 12 from institute by supporting tool
It states limit chamber 211 and pulls to the expansion chamber 212, the waist includes upper waist 113 and lower waist 114, and the upper waist 113 is set
It is placed between the shank 112 and the lower waist 114, the upper waist 113 is hexagonal waist, is set in the lower waist 114
There is inscribed chamber 115.
Wherein, the bolt body 11 is further provided with internal screw thread 111, and the internal screw thread 111 is set to the inscribed chamber
In 115, in order to being fixedly connected in wall heavy load.
The inner bolt 10 can be metal, be also possible to composite material.
Preferably, the inner bolt 10 is to be coated with heat-resistant polymer in the outer surface of the metal using metal as matrix
Coating, effectively overcomes that common expansion bolt 1 is perishable, heat labile disadvantage, avoids under the intensity of metal as the temperature rises
Drop is serious and may jeopardize the personal safety of user.
The raw material of the ovenable polymeric coatings of the inner bolt 10 is made of following component in parts by weight: 100 parts of doping
The epoxy modified silicone resin of pps powder, 10~20 parts of nano silicas, 10~30 parts of aluminium-hydroxide powders with
And 5~15 parts of boric acid.
The epoxy modified silicone resin of the doping pps powder is for polyphenylene sulfide and after epoxy resin modification
Organic siliconresin.Organic siliconresin have good thermal stability, the transparency, cold-resistant hot, impact resistance, agent of low hygroscopicity,
Low surface tension and low glass transition temperature.But the adhesion strength of silicone resin and substrate is not good enough, affects its application.Epoxy
Resin has good bonding force to substrate, therefore by epoxy modified silicone resin, obtains the material for having both the two advantage.It is poly-
Diphenyl sulfide is a kind of novel high-performance resin, has high mechanical strength, high temperature resistant, chemical resistance, fire retardant, thermal stability
Well, the advantages of excellent electrical properties.
The nano silica is amorphous white powder, nontoxic, tasteless, pollution-free, and micro-structure is spherical shape, in cotton-shaped
With netted quasi- grain structure, anti-aging other materials, intensity and chemical-resistance can be improved.Nano silica and organosilicon
Resin is combined together by intermolecular active force, and dispersion is in order.Nano silica is dispersed in organic siliconresin
Play the role of physical crosslinking, effectively enhances the intensity and tensile resistance of organic siliconresin.Meanwhile nanometer titanium dioxide
The low thermal conductivity of silicon improves the heat-proof quality of resin.Further, since the presence of nano silica greatly strengthens resin
Wear-resisting property and hardness, help to reinforce the protection to 10 surface of inner bolt.
The boric acid has the characteristics that density is low, easy dehydration is to take away big calorimetric.Differential thermal analysis shows boric acid in 130-
Substep sloughs water and generates B when being heated within the scope of 270 DEG C2O3, amount of heat is taken away while discharging hydrone, when temperature reaches
At 450 DEG C, B2O3Softening forms glassy fusant, forms shielded layer in coating surface, barrier oxygen is permeated to coat inside, reached
To further fire-retardant purpose.Big calorimetric is equally taken away in dehydration when the aluminium hydroxide is heated within the scope of 200-500 DEG C simultaneously
Amount, improves the heat-insulating capability of coating.Aluminium hydroxide is added in the polymer coating and boric acid is able to allow it in higher temperature
Lower decomposition absorbs heat, while the water for decomposing generation vaporizes again and further decreases temperature, to achieve the effect that coating is heat-insulated, rises
To preventing, bolt metal substrate temperature is excessively high and the phenomenon that mechanical properties decrease occurs.
Preferably, the raw material of the ovenable polymeric coatings of the inner bolt 10 is made of following component in parts by weight: 100
Part doping epoxy modified silicone resin of pps powder, 12 parts of nano silicas, 18 parts of aluminium-hydroxide powders and
10 parts of boric acid.
The polymer coating preparation method of the inner bolt 10 comprising step:
(a) sol-gal process prepares prepolymer, by three oxosilane of 100g methyl, 50g dimethyl diethoxysilane, 150g
Toluene is uniformly mixed, then the hydrochloric acid solution that 4g mass fraction is 36.5% is added dropwise, and 60g scattered polyphenylene sulfide is then added dropwise
Deionized water be uniformly mixed, deionized water/polyphenylene sulfide powder mass ratio be 5: 1, the back flow reaction 5h at 65 DEG C, through washing in
Toluene equal solvent is removed with rear vacuum distillation, obtains prepolymer；And
(b) adding assistant solidifies, by the prepolymer of corrresponding quality score, 4- methyl hexahydrophthalic anhydride, dimethylaniline, nanometer two
Silica, aluminium hydroxide, boric acid, which are uniformly mixed, obtains polymer coating liquid, is then equably coated in the polymer coating liquid
10 surface of inner bolt solidifies 2h at 60 DEG C.
Embodiment 1
The raw material of the polymer coating of the inner bolt 10 is made of following component in parts by weight:
100 parts of epoxy modified silicone resin for adulterating pps powder
12 parts of nano silica
18 parts of aluminium-hydroxide powder
10 parts of boric acid
Then the polymer coating liquid as made from the polymer coating preparation method of the inner bolt 10 is equably coated in
Bolt surface solidifies 2h at 60 DEG C, obtains heat-and corrosion-resistant expansion bolt 1.
Embodiment 2
The raw material of the polymer coating of the inner bolt 10 is made of following component in parts by weight:
100 parts of epoxy modified silicone resin for adulterating pps powder
10 parts of nano silica
12 parts of aluminium-hydroxide powder
6 parts of boric acid
Then the polymer coating liquid as made from the polymer coating preparation method of the inner bolt 10 is equably coated in
Bolt surface solidifies 2h at 60 DEG C, obtains heat-and corrosion-resistant expansion bolt 1.
Embodiment 3
The raw material of the polymer coating of the inner bolt 10 is made of following component in parts by weight:
100 parts of epoxy modified silicone resin for adulterating pps powder
10 parts of nano silica
12 parts of aluminium-hydroxide powder
6 parts of boric acid
Then the polymer coating liquid as made from the polymer coating preparation method of the inner bolt 10 is equably coated in
Bolt surface solidifies 2h at 60 DEG C, obtains heat-and corrosion-resistant expansion bolt 1.
Comparative example 4
The raw material of the polymer coating of the inner bolt 10 is made of following component in parts by weight:
100 parts of epoxy modified silicone resin
12 parts of nano silica
18 parts of aluminium-hydroxide powder
10 parts of boric acid
Then the polymer coating liquid as made from the polymer coating preparation method of the inner bolt 10 is equably coated in
Bolt surface solidifies 2h at 60 DEG C, obtains heat-and corrosion-resistant expansion bolt 1.
Comparative example 5
The raw material of the polymer coating of the inner bolt 10 is made of following component in parts by weight:
100 parts of epoxy modified silicone resin for adulterating pps powder
18 parts of aluminium-hydroxide powder
10 parts of boric acid
Then the polymer coating liquid as made from the polymer coating preparation method of the inner bolt 10 is equably coated in
Bolt surface solidifies 2h at 60 DEG C, obtains heat-and corrosion-resistant expansion bolt 1.
Comparative example 6
The raw material of the polymer coating of the inner bolt 10 is made of following component in parts by weight:
100 parts of epoxy modified silicone resin for adulterating pps powder
12 parts of nano silica
10 parts of boric acid
Then the polymer coating liquid as made from the polymer coating preparation method of the inner bolt 10 is equably coated in
Bolt surface solidifies 2h at 60 DEG C, obtains heat-and corrosion-resistant expansion bolt 1.
Comparative example 7
The raw material of the polymer coating of the inner bolt 10 is made of following component in parts by weight:
100 parts of epoxy modified silicone resin for adulterating pps powder
12 parts of nano silica
18 parts of aluminium-hydroxide powder
Then the polymer coating liquid as made from the polymer coating preparation method of the inner bolt 10 is equably coated in
Bolt surface solidifies 2h at 60 DEG C, obtains heat-and corrosion-resistant expansion bolt 1.
Wherein, the performance test results of embodiment 1 to comparative example 7 are as shown in table 1.
1 embodiment 1 of table to comparative example 7 polymer coating the performance test results
The basic principles, main features and advantages of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and what is described in the above embodiment and the description is only the present invention
Principle, various changes and improvements may be made to the invention without departing from the spirit and scope of the present invention, these variation and
Improvement is both fallen in the range of claimed invention.The present invention claims protection scope by appended claims and its
Equivalent defines.
Claims (7)
1. a kind of reusable expansion bolt, which is characterized in that including inner bolt and be releasably coupled the interior spiral shell
The outer expansion set of bolt, the inner bolt include bolt body and the enlarged head for being set to the bolt body end, the expansion
From the end of the bolt body, radially outwardly one annular extends enlarged head, and the outer expansion set includes body and integrally
From the body song to the convex ridge portion protruded out, the body is equipped with limit chamber and expansion chamber, and the limit chamber is set to described
The front of body, the limit chamber adapt to the enlarged head of the inner bolt, and the diameter of the expansion chamber is less than the limit
The diameter of chamber, wherein the convex ridge portion is symmetrically disposed on the radially opposite sides of the body, and compartment of terrain is along the body outer wall
Downward spiral extend, the convex ridge portion be convex sword structure, the outer expansion set be frustum cone structure, the outer expansion set be equipped with upper surface and
Lower end surface, the diameter of the upper surface are greater than the diameter of the lower end surface, and the convex ridge portion is from the upper end towards the lower end
The width that face extends is gradually reduced, wherein the raw material of the ovenable polymeric coatings of the inner bolt is in parts by weight by following group
It is grouped as: the epoxy modified silicone resin of 100 parts of doping pps powders, 10~20 parts of nano silicas, 10~30
Part aluminium-hydroxide powder and 5~15 parts of boric acid.
2. reusable expansion bolt according to claim 1, which is characterized in that the body further comprises holding
Receive chamber and positioning chamber, the accommodating chamber is located above the expansion chamber, limit chamber and the receiving described in the expansion chamber connection
The diameter of chamber, the accommodating chamber is greater than the limit chamber, and the positioning chamber is evenly spaced the upper end for being set to the outer expansion set
Face.
3. reusable expansion bolt according to claim 2, which is characterized in that the body be equipped with outward opening and
Interior arc angle, limit chamber and the external world described in the outward opening connection, the interior arc angle is set to the inside of the limit chamber, described outer
The diameter of opening is less than the diameter of the enlarged head.
4. reusable expansion bolt according to claim 3, which is characterized in that the bolt body includes shank
And the waist integrally extended downwardly from the shank, the shank have external screw thread, the waist includes upper waist and lower waist
Portion, the upper waist are set between the shank and the lower waist, and the upper waist is hexagonal waist, in the lower waist
Equipped with inscribed chamber, the bolt body is further provided with internal screw thread, and the internal screw thread is set in the inscribed chamber.
5. reusable expansion bolt according to any one of claims 1 to 4, which is characterized in that the outer expansion set
It is plastic part, the inner bolt is to be coated with ovenable polymeric coatings in the outer surface of the metallic matrix using metal as matrix.
6. reusable expansion bolt according to claim 5, which is characterized in that the resistance to thermal polymerization of the inner bolt
The raw material of object coating is made of following component in parts by weight: the epoxy modified silicone tree of 100 parts of doping pps powders
Rouge, 12 parts of nano silicas, 18 parts of aluminium-hydroxide powders and 10 parts of boric acid.
7. a kind of ovenable polymeric coatings preparation of the inner bolt in reusable expansion bolt as claimed in claim 6
Method, which is characterized in that comprising steps of
(a) sol-gal process prepares prepolymer, by three oxosilane of 100g methyl, 50g dimethyl diethoxysilane, 150g toluene
It is uniformly mixed, then the hydrochloric acid solution that 4g mass fraction is 36.5% is added dropwise, 60g then is added dropwise, and scattered polyphenylene sulfide is gone
Ionized water is uniformly mixed, and deionized water/polyphenylene sulfide powder mass ratio is 5: 1, the back flow reaction 5h at 65 DEG C, after washing neutralizes
Vacuum distillation removes toluene solvant, obtains prepolymer；And
(b) adding assistant solidifies, by the prepolymer of corrresponding quality score, 4- methyl hexahydrophthalic anhydride, dimethylaniline, nanometer titanium dioxide
Silicon, aluminium hydroxide, boric acid, which are uniformly mixed, obtains polymer coating liquid, then equably applies the polymer coating liquid in interior spiral shell
Bolt surface solidifies 2h at 60 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610832575.9A CN106438626B (en) | 2016-09-01 | 2016-09-01 | A kind of reusable expansion bolt and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610832575.9A CN106438626B (en) | 2016-09-01 | 2016-09-01 | A kind of reusable expansion bolt and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106438626A CN106438626A (en) | 2017-02-22 |
| CN106438626B true CN106438626B (en) | 2019-03-26 |
Family
ID=58165852
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610832575.9A Active CN106438626B (en) | 2016-09-01 | 2016-09-01 | A kind of reusable expansion bolt and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106438626B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107740800A (en) * | 2017-10-17 | 2018-02-27 | 苏州华丰不锈钢紧固件有限公司 | A kind of high-strength corrosion-resisting plastic screw |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2292181Y (en) * | 1997-05-28 | 1998-09-23 | 李伟旬 | Upset screw |
| CN2382879Y (en) * | 1999-08-09 | 2000-06-14 | 甘仲光 | Self fixing connection bolt |
| CN2494448Y (en) * | 2001-07-30 | 2002-06-05 | 徐跃华 | Fastener |
| CN203730492U (en) * | 2014-03-13 | 2014-07-23 | 温州市强杰不锈钢标准件有限公司 | Self-locking expansion bolt |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060067803A1 (en) * | 2004-09-27 | 2006-03-30 | Hsu Chin J | Self-drilling wall anchor device |
-
2016
- 2016-09-01 CN CN201610832575.9A patent/CN106438626B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2292181Y (en) * | 1997-05-28 | 1998-09-23 | 李伟旬 | Upset screw |
| CN2382879Y (en) * | 1999-08-09 | 2000-06-14 | 甘仲光 | Self fixing connection bolt |
| CN2494448Y (en) * | 2001-07-30 | 2002-06-05 | 徐跃华 | Fastener |
| CN203730492U (en) * | 2014-03-13 | 2014-07-23 | 温州市强杰不锈钢标准件有限公司 | Self-locking expansion bolt |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106438626A (en) | 2017-02-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Peng et al. | Phase change material (PCM) microcapsules for thermal energy storage | |
| Sarı et al. | Microencapsulated heptadecane with calcium carbonate as thermal conductivity-enhanced phase change material for thermal energy storage | |
| Li et al. | A study on superhydrophobic coating in anti-icing of glass/porcelain insulator | |
| CN106563398B (en) | A kind of preparation method and applications of the organic/inorganic complex microsphere of raspberry shape structure | |
| CN111019485B (en) | Preparation method of friction-resistant anti-icing coating | |
| CN106438626B (en) | A kind of reusable expansion bolt and preparation method thereof | |
| CN104262663A (en) | Preparation method of poly(phenol-amine) superhydrophobic particulates | |
| CN109679491A (en) | A kind of corrosion-resistant anti-blocking water pipeline and preparation method thereof | |
| CN105754554B (en) | One kind containing nano-TiO2Cellulose base low temperature phase change accumulation energy microcapsule and preparation method thereof | |
| CN107400928B (en) | A kind of simple and easy method directly growing carbon nano pipe array on metal and application | |
| Wang et al. | Advances in the research of carbon-, silicon-, and polymer-based superhydrophobic nanomaterials: synthesis and potential application | |
| CN112126350A (en) | Recyclable super-amphiphobic composite coating and preparation and application thereof | |
| He et al. | Preparation methods and research progress of super-hydrophobic anti-icing surface | |
| CN106285506A (en) | Oil well pipe thread coating lubrication system and manufacture method | |
| CN109627978A (en) | A kind of super-hydrophobic coating of resistance to water slug and preparation method thereof | |
| CN109505640A (en) | A kind of screw-type metal pressure-relieving achor bar device | |
| CN107522889A (en) | The preparation method of expandable thermoplastic graphene porous carbon materials | |
| KR20180009623A (en) | Nanomaterial, method for fabricating the same, and nanofluid comprising the same | |
| CN205677934U (en) | A kind of sealing bolt | |
| CN206908252U (en) | A kind of Pre-Cutter-Type Anti-Vibration Hammer | |
| CN110922861A (en) | Anticorrosive heat-dissipation powder coating | |
| CN109233555A (en) | Nano anti-corrosive insulating moulding coating and preparation method thereof | |
| CN105951508B (en) | A kind of preparation method of Novel paper | |
| CN210097717U (en) | High-efficient backward flow condenser pipe | |
| Hui et al. | Effects of the functional group on the lithium irons across the port of carbon nanotube |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |