CN109322889A - A kind of Anti-extrusion expansion bolt - Google Patents
A kind of Anti-extrusion expansion bolt Download PDFInfo
- Publication number
- CN109322889A CN109322889A CN201811539898.4A CN201811539898A CN109322889A CN 109322889 A CN109322889 A CN 109322889A CN 201811539898 A CN201811539898 A CN 201811539898A CN 109322889 A CN109322889 A CN 109322889A
- Authority
- CN
- China
- Prior art keywords
- expansion
- arc
- card
- bolt
- hole
- 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.)
- Granted
Links
- 238000001125 extrusion Methods 0.000 title claims abstract description 20
- 239000007787 solid Substances 0.000 claims 1
- 238000005452 bending Methods 0.000 description 9
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000009466 transformation Effects 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
- F16B13/066—Dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose with parts gripping in the hole or behind the reverse side of the wall after inserting from the front combined with expanding sleeve by the use of an expander fastened by extracting a separate expander-part, actuated by the screw, nail or the like
-
- 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
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/22—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening
- F16B39/28—Locking of screws, bolts or nuts in which the locking takes place during screwing down or tightening by special members on, or shape of, the nut or bolt
- F16B39/34—Locking by deformable inserts or like parts
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Dowels (AREA)
- Furniture Connections (AREA)
Abstract
The invention discloses a kind of Anti-extrusion expansion bolts, including bolt, casing, spring washer and expansion nut, the casing includes sleeve body and bottom plate and card positioned at sleeve body both ends, through equipped with through-hole in the bottom plate and sleeve body, described sleeve pipe ontology is equipped with the segmental arc outwardly protruded by proximal portion, annular protrusion is equipped with positioned at the bottom end of segmental arc on the inner wall of the through-hole, the outer wall of described sleeve pipe ontology is equipped with several the first grooves through tube wall for extending to bottom end, the expansion nut includes columned compressing section and round table-like expansion arc, through equipped with threaded hole in the compressing section and expansion arc, the card is inclined at the bottom of sleeve body and forms a flaring, the tilt angle and expansion arc of the card are adapted, inner wall of the card close to bottom end is equipped with the second groove , tightness is good, suitable for the larger deeper preset holes in aperture, can prevent from.
Description
[technical field]
The present invention relates to the technical field of expansion bolt, especially a kind of technical field of Anti-extrusion expansion bolt.
[background technique]
Expansion bolt is usually to be made of components such as screw rod cylinder, expansion-head, expansion sleeve, nut, washer and gaskets,
Nut external and the built-in expansion bolt of nut can be divided into according to the location of nut.Nut external expansion bolt refers to
Nut is exposed to the form of outside, and turning nut fastens expansion bolt；The built-in expansion bolt of nut refers to that nut (expands
Head) it is buried enter the connectors such as wall or concrete interior form of getting into the cave, the screw head for turning screw rod cylindrical end portions makes expansion bolt
Fastening.
Current expansion bolt is got into the cave to bore during the installation process and can not be bored deeply shallowly, once it bores deeply, in nut
The formula expansion bolt of setting is easy to fall nut (i.e. expansion-head) in getting into the cave, and especially can more hold when screw rod cylinder is screwed into again
Easily occur, to put to no little inconvenience, and when turning, bolt (screw rod cylinder) and nut are easy to rotate together generation cannot
The phenomenon that fastening, influences the use of expansion bolt.In addition, when the aperture of preset holes is larger, if expansion pipe size is less than normal, expansion
Head only carries out spreading to casing in the bottom end of casing and fixes, and is easy to make to be fixed on the part to be fixed of the other end of casing by more
It is loosened after secondary vibration, built on the sand so as to cause device installation.
[summary of the invention]
The object of the invention is to solve the problems of the prior art, proposes a kind of Anti-extrusion expansion bolt, can pass through
It is equipped with the bottom plate with spine in cannula tip, avoids casing from rotating in hole together with expansion nut with bolt, ensure that
The tightness of expansion bolt bends card by the way that the second groove is arranged on card, avoids expansion nut from falling, pass through expansion
The retraction of nut is so that segmental arc bending deformation, clamping preset holes and bolt, enhance the locking property of expansion bolt respectively.
To achieve the above object, the invention proposes a kind of Anti-extrusion expansion bolts, including bolt, casing, spring washer
And expansion nut, the casing include sleeve body and bottom plate and card positioned at sleeve body both ends, the bottom plate and set
Through being equipped with through-hole in tube body, described sleeve pipe ontology is equipped with the segmental arc outwardly protruded by proximal portion, the through-hole it is interior
It is equipped with annular protrusion positioned at the bottom end of segmental arc on wall, the outer wall of described sleeve pipe ontology is equipped with several and extends to bottom end
Through the first groove of tube wall, the expansion nut includes columned compressing section and round table-like expansion arc, the compressing section
It is equipped with threaded hole with running through in expansion arc, the card is inclined at the bottom of sleeve body and forms a flaring, described
The tilt angle and expansion arc of card are adapted, and inner wall of the card close to bottom end is equipped with the second groove and can be along second
Groove, which bends inwards, to form a cavity to which expansion arc is fixed on inside, and the bolt includes hexagonal screw head and with outer spiral shell
The screw rod of line, the screw rod sequentially pass through spring washer, casing and expansion nut from top to bottom.
Preferably, the card and the first groove are distributed along the axis misalignment of casing.
Preferably, the compressing section and expansion arc are structure as a whole, outer diameter and the compressing section on the expansion arc top
Outer diameter is identical, and when expansion arc sleeve pipe can make casing along groove spreading.
Preferably, be located at segmental arc under through-hole aperture and compressing section outer diameter be adapted, be located at segmental arc it
On the aperture of through-hole and the outer diameter of screw rod be adapted, the outer diameter of the internal diameter of the annular protrusion slightly larger than compressing section, the spiral shell
The aperture of pit and the outer diameter of screw rod are adapted, and the length of the through-hole under segmental arc is consistent with the compressing length of section.
Preferably, described sleeve pipe is located at the thickness that the pipe thickness at segmental arc is less than the tube wall being located under segmental arc
Degree.
Preferably, the segmental arc is equipped with recess by proximal portion, the internal diameter of the recess is greater than the outer diameter of screw rod.
Preferably, the bottom surface of the bottom plate is equipped with several spines.
Beneficial effects of the present invention: the present invention by cannula tip be equipped with spine bottom plate, avoid casing with it is swollen
Expansion nut rotates in hole with bolt together, ensure that the tightness of expansion bolt, by the way that the second groove is arranged on card
Card is bent, expansion nut is avoided to fall, by the retraction of expansion nut so that segmental arc bending deformation, clamping is preset respectively
Hole and bolt enhance the locking property of expansion bolt.
Feature and advantage of the invention will be described in detail by embodiment combination attached drawing.
[Detailed description of the invention]
Fig. 1 is a kind of main view of Anti-extrusion expansion bolt of the present invention；
Fig. 2 is a kind of main view of the casing of Anti-extrusion expansion bolt of the present invention；
Fig. 3 is a kind of top view of the casing of Anti-extrusion expansion bolt of the present invention；
Fig. 4 is a kind of main view of the expansion nut of Anti-extrusion expansion bolt of the present invention；
Fig. 5 is a kind of main view of the bolt of Anti-extrusion expansion bolt of the present invention.
In figure: 1- bolt, 11- hexagonal screw head, 12- screw rod, 2- casing, 21- bottom plate, 211- spine, 22- sleeve body,
221- annular protrusion, the first groove of 222-, 23- segmental arc, 231- recess, 24- card, the second groove of 241-, 25- through-hole, 3-
Spring washer, 4- expansion nut, 41- compressing section, 42- expansion arc and 43- threaded hole.
[specific embodiment]
Refering to fig. 1 to Fig. 5, a kind of Anti-extrusion expansion bolt of the present invention, including bolt 1, casing 2, spring washer 3 and expansion
Nut 4, the casing 2 include sleeve body 22 and bottom plate 21 and card 24 positioned at 22 both ends of sleeve body, the bottom plate
21 and sleeve body 22 in through through-hole 25 is equipped with, described sleeve pipe ontology 2 is equipped with the segmental arc 23 that outwardly protrudes by proximal portion,
It is equipped with annular protrusion 221 positioned at the bottom end of segmental arc 23 on the inner wall of the through-hole 25, on the outer wall of described sleeve pipe ontology 22
The first groove 222 through tube wall of bottom end is extended to equipped with several, the expansion nut 5 includes columned compressing section 41
With round table-like expansion arc 42, through threaded hole 43 is equipped in the compressing section 41 and expansion arc 42, the inclination of card 24 is set
It sets the bottom in sleeve body 22 and forms a flaring, the tilt angle and expansion arc 42 of the card 24 are adapted, described
Inner wall of the card 24 close to bottom end is equipped with the second groove 241 and can bend inwards to form a cavity along the second groove 241
To which expansion arc 42 is fixed on inside, the bolt 1 is including hexagonal screw head 11 and has externally threaded screw rod 12, the screw rod
12 sequentially pass through spring washer 3, casing 2 and expansion nut 4 from top to bottom, and the card 24 and the first groove 222 are along casing 2
Axis misalignment distribution, the compressing section 41 and expansion arc 42 be structure as a whole, the outer diameter on 42 top of expansion arc and compressing
The outer diameter of section 41 is identical, and when 42 sleeve pipe 2 of expansion arc can make casing 2 along 222 spreading of groove, be located at segmental arc 23 it
Under the aperture of through-hole 25 and the outer diameter of compressing section 41 be adapted, the aperture of the through-hole 25 on segmental arc 23 and screw rod 12
Outer diameter be adapted, the outer diameter of the internal diameter of the annular protrusion 221 slightly larger than compressing section 41, the aperture of the threaded hole 43 and spiral shell
The outer diameter of bar 12 is adapted, and the length of the through-hole 25 under segmental arc 23 is consistent with the compressing length of section 41, described sleeve pipe 2
Pipe thickness at segmental arc 23 is less than the thickness for the tube wall being located under segmental arc 23, and the segmental arc 23 is close to top
Place is equipped with recess 231, and the internal diameter of the recess 231 is greater than the outer diameter of screw rod 12, and the bottom surface of the bottom plate 21 is equipped with several points
Thorn 211.
The course of work of the present invention:
A kind of Anti-extrusion expansion bolt of the present invention during the work time, firstly, by the compressing section 41 of expansion nut 4 from casing
In 2 bottom insertion through-hole 25 and it is placed in the expansion arc 42 of expansion nut 4 in the flaring in 2 bottom end card 24 of casing, then
It is formed by cavity after bending inwards card 24 so that expansion nut 4 is fixed on the bending of card 24 along the second groove 241,
By casing 2 in the direction directed downwardly of card 24 insertion preset holes.It then, will be on the through-hole alignment ground of part to be fixed or wall
Preset holes, by bolt 1 pass through spring washer 4 after be inserted into preset holes.Bolt 1 is tightened, so that expansion nut 4 is along bolt
1 screw rod 12 bounces back.With the retraction of expansion nut 4, oppressing section 41, gradually the relatively thin segmental arc 23 of compressing tube wall makes arc upwards
The biggish bending part of the downside of shape section 23 continues to bend along original bending direction, the biggish bending part of segmental arc 23 to
Outer protrusion and the hole wall for blocking preset holes, can even be pierced into preset holes when the quality on ground or metope is more loose, then,
Compressing section 41 gradually passes through annular protrusion 221, makes in 42 sleeve pipe 2 of expansion arc to make casing 2 rise along the first groove 222
Open, meanwhile, sleeve body 22 under segmental arc 23 due to segmental arc 23 deformation and gradually upwards close to bottom plate 21, arc
The lesser bending part of 23 upside of shape section continues to bend along original overbending direction, keeps recess 231 close to axle center and blocks
Tight bolt 1.
The present invention avoids casing together with expansion nut with bolt by being equipped with the bottom plate with spine in cannula tip
It is rotated in hole, ensure that the tightness of expansion bolt, bent card by the way that the second groove is arranged on card, avoid expanding
Nut falls, by the retraction of expansion nut so that segmental arc bending deformation, clamping preset holes and bolt, enhance expansion respectively
The locking property of bolt.
Above-described embodiment is the description of the invention, is not limitation of the invention, after any pair of simple transformation of the present invention
Scheme all belong to the scope of protection of the present invention.
Claims (7)
1. a kind of Anti-extrusion expansion bolt, it is characterised in that: including bolt (1), casing (2), spring washer (3) and expansion nut
(4), the casing (2) include sleeve body (22) and be located at sleeve body (22) both ends bottom plate (21) and card (24),
Through being equipped with through-hole (25) in the bottom plate (21) and sleeve body (22), described sleeve pipe ontology (2) by proximal portion be equipped with to
The segmental arc (23) of outer protrusion, the bottom end that segmental arc (23) are located on the inner wall of the through-hole (25) are equipped with annular protrusion
(221), the outer wall of described sleeve pipe ontology (22) is equipped with several the first grooves (222) through tube wall for extending to bottom end,
The expansion nut (5) includes columned compressing section (41) and round table-like expansion arc (42), the compressing section (41) and swollen
Through threaded hole (43) are equipped in swollen section (42), the card (24) is inclined at the bottom of sleeve body (22) and forms one
A flaring, the tilt angle of the card (24) and expansion arc (42) are adapted, and the card (24) is on the inner wall of bottom end
It can bend inwards equipped with the second groove (241) and along the second groove (241) to form a cavity to which expansion arc (42) are solid
Be scheduled on inside, the bolt (1) includes hexagonal screw head (11) and with externally threaded screw rod (12), the screw rod (12) from up to
Under sequentially pass through spring washer (3), casing (2) and expansion nut (4).
2. a kind of Anti-extrusion expansion bolt as described in claim 1, it is characterised in that: the card (24) and the first groove
(222) it is distributed along the axis misalignment of casing (2).
3. a kind of Anti-extrusion expansion bolt as described in claim 1, it is characterised in that: the compressing section (41) and expansion arc
(42) it is structure as a whole, the outer diameter on expansion arc (42) top is identical as the compressing outer diameter of section (41), the expansion arc (42)
Casing (2) can be made along groove (222) spreading when sleeve pipe (2).
4. a kind of Anti-extrusion expansion bolt as described in claim 1, it is characterised in that: the through-hole being located under segmental arc (23)
(25) outer diameter in aperture and compressing section (41) is adapted, and is located at aperture and the screw rod of the through-hole (25) on segmental arc (23)
(12) outer diameter is adapted, outer diameter of the internal diameter slightly larger than compressing section (41) of the annular protrusion (221), the threaded hole (43)
Aperture and the outer diameter of screw rod (12) be adapted, be located at the length and compressing section (41) of the through-hole (25) under segmental arc (23)
Length is consistent.
5. a kind of Anti-extrusion expansion bolt as described in claim 1, it is characterised in that: described sleeve pipe (2) is located at segmental arc
(23) pipe thickness at is less than the thickness for the tube wall being located under segmental arc (23).
6. a kind of Anti-extrusion expansion bolt as described in claim 1, it is characterised in that: the segmental arc (23) leans on proximal portion
Equipped with recess (231), the internal diameter of the recess (231) is greater than the outer diameter of screw rod (12).
7. a kind of Anti-extrusion expansion bolt as described in claim 1, it is characterised in that: the bottom plate (21) if bottom surface be equipped with
Dry spine (211).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811539898.4A CN109322889B (en) | 2018-12-17 | 2018-12-17 | Anti-falling expansion bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811539898.4A CN109322889B (en) | 2018-12-17 | 2018-12-17 | Anti-falling expansion bolt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109322889A true CN109322889A (en) | 2019-02-12 |
| CN109322889B CN109322889B (en) | 2023-08-25 |
Family
ID=65257384
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811539898.4A Active CN109322889B (en) | 2018-12-17 | 2018-12-17 | Anti-falling expansion bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109322889B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110873105A (en) * | 2019-11-20 | 2020-03-10 | 上海令恩工程科技有限公司 | Installation method of standard sleeve self-locking one-way bolt |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101463854A (en) * | 2009-01-10 | 2009-06-24 | 金拯 | Expansion bolt |
| JP3205310U (en) * | 2016-05-06 | 2016-07-21 | 張三河 | Corrugated support frame fastening structure |
| CN206487734U (en) * | 2016-12-21 | 2017-09-12 | 久可工业股份有限公司 | It can prevent from expanding incomplete expansion bolt |
| CN207848139U (en) * | 2017-12-13 | 2018-09-11 | 苏州茂隆电梯配件有限公司 | A kind of hollow anchor bolt |
| CN209705022U (en) * | 2018-12-17 | 2019-11-29 | 嘉兴钰丰汽车零部件有限公司 | A kind of Anti-extrusion expansion bolt |
-
2018
- 2018-12-17 CN CN201811539898.4A patent/CN109322889B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101463854A (en) * | 2009-01-10 | 2009-06-24 | 金拯 | Expansion bolt |
| JP3205310U (en) * | 2016-05-06 | 2016-07-21 | 張三河 | Corrugated support frame fastening structure |
| CN206487734U (en) * | 2016-12-21 | 2017-09-12 | 久可工业股份有限公司 | It can prevent from expanding incomplete expansion bolt |
| CN207848139U (en) * | 2017-12-13 | 2018-09-11 | 苏州茂隆电梯配件有限公司 | A kind of hollow anchor bolt |
| CN209705022U (en) * | 2018-12-17 | 2019-11-29 | 嘉兴钰丰汽车零部件有限公司 | A kind of Anti-extrusion expansion bolt |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110873105A (en) * | 2019-11-20 | 2020-03-10 | 上海令恩工程科技有限公司 | Installation method of standard sleeve self-locking one-way bolt |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109322889B (en) | 2023-08-25 |
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| CB02 | Change of applicant information |
Address after: 314300 Qinshan Street Industrial Park, Haiyan County, Jiaxing City, Zhejiang Province Applicant after: Jiaxing Yufeng Auto Parts Co.,Ltd. Address before: 314300 Qinshan Street Industrial Park, Haiyan County, Jiaxing City, Zhejiang Province Applicant before: JIAXING YUFENG CAR PARTS Co.,Ltd. |
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