CN109340234B - Embossing type anti-drop expansion bolt - Google Patents
Embossing type anti-drop expansion bolt Download PDFInfo
- Publication number
- CN109340234B CN109340234B CN201811539733.7A CN201811539733A CN109340234B CN 109340234 B CN109340234 B CN 109340234B CN 201811539733 A CN201811539733 A CN 201811539733A CN 109340234 B CN109340234 B CN 109340234B
- Authority
- CN
- China
- Prior art keywords
- expansion
- sleeve body
- sleeve
- bolt
- embossing
- 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
- 238000004049 embossing Methods 0.000 title claims abstract description 25
- 238000000034 method Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000004080 punching Methods 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
- F16B13/068—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 expanded in two or more places
-
- 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)
- Piles And Underground Anchors (AREA)
- Dowels (AREA)
Abstract
The invention discloses an embossing type anti-falling expansion bolt which comprises a bolt, a sleeve, a gasket, a spring washer and an expansion nut, wherein the sleeve comprises a sleeve body with a through hole in the center and a plurality of clamping pieces positioned at the bottom of the sleeve body, embossing is arranged at the top of the sleeve body, a plurality of first grooves which extend from the center to the bottom end and penetrate through the wall of the sleeve are arranged on the outer wall of the sleeve body, the expansion nut is in a truncated cone shape and is provided with a threaded hole in the center, the clamping pieces are obliquely arranged at the bottom of the sleeve body and form a flaring, the inclination angle of the clamping pieces is matched with that of the expansion nut, a plurality of second grooves are arranged on the inner wall of the clamping pieces close to the bottom end and can be inwards bent along the second grooves to form a cavity, so that the expansion nut is fixed inside, and the expansion opening of the sleeve can be adjusted while the expansion nut is prevented from falling.
Description
[ field of technology ]
The invention relates to the technical field of expansion bolts, in particular to the technical field of embossed anti-falling expansion bolts.
[ background Art ]
The expansion bolt generally comprises a screw column body, an expansion head, an expansion sleeve, a nut, a gasket and other parts, and can be divided into an external nut expansion bolt and an internal nut expansion bolt according to the position of the nut. The expansion bolt with the external nut is in a form that the nut is exposed outside, and the expansion bolt is fastened by screwing the nut; the expansion bolt with built-in nut is in a form that the nut (namely, the expansion head) is buried in a drilling hole of a connecting body such as a wall body or concrete, and the expansion bolt is fastened by screwing a screw head at the end part of a screw column body.
The existing expansion bolts cannot drill deep and shallow in the installation process, once the existing expansion bolts are drilled deep, nuts (namely expansion heads) are easy to fall into the drilled holes, particularly when screw columns are screwed in again, great inconvenience is caused, and when the screw columns are screwed in, the bolts (screw columns) and the nuts are easy to rotate together to generate the phenomenon that the nuts cannot be fastened, so that the use of the expansion bolts is affected. In addition, if the ground or wall is loose or the diameter of the drill bit for punching is larger, a clearance fit is formed between the preset hole and the expansion sleeve, and in the process of tightening the screw, the problem of rotation following of the sleeve along with rotation of the bolt occurs, so that the equipment or device is unstable to install.
[ invention ]
The invention aims to solve the problems in the prior art, and provides an embossing type anti-falling expansion bolt, wherein a sleeve body is in a hexagonal column shape and is provided with embossments at the top, when the embossing type anti-falling expansion bolt is inserted into a preset hole, the embossing type anti-falling expansion bolt can effectively stop rotating, avoid rotating together with an expansion nut in the hole along with the bolt, ensure the tightness of the expansion bolt, and enable the expansion nut with different heights to be fixed after the card is bent by arranging a plurality of second grooves, so that the expansion opening of the sleeve can be adjusted while the expansion nut is prevented from falling.
In order to achieve the above purpose, the invention provides an embossing type anti-falling expansion bolt, which comprises a bolt, a sleeve, a gasket, a spring washer and an expansion nut, wherein the sleeve comprises a sleeve body with a through hole in the center and a plurality of clamping pieces positioned at the bottom of the sleeve body, the top of the sleeve body is provided with embossing, the outer wall of the sleeve body is provided with a plurality of first grooves which extend from the center to the bottom and penetrate through the pipe wall, the expansion nut is in a circular truncated cone shape, the center is provided with a threaded hole, the clamping pieces are obliquely arranged at the bottom of the sleeve body and form a flaring, the inclination angle of the clamping pieces is matched with that of the expansion nut, the inner wall, close to the bottom, of the clamping pieces is provided with a plurality of second grooves and can be inwards bent along the second grooves to form a cavity so as to fix the expansion nut inside, and the bolt comprises a hexagonal screw head and a screw with external threads, wherein the screw sequentially penetrates through the spring washer, the gasket, the sleeve and the expansion nut from top to bottom.
Preferably, the sleeve body and the card are of an integral structure.
Preferably, the sleeve body is hexagonal cylindrical.
Preferably, the embossing is twill embossing or straight embossing, and the length of the embossing is 1/4-1/3 of the length of the sleeve body.
Preferably, the number of the second grooves is at least two, and the distance between the bottom ends of the cards after the cards are bent inwards along the second grooves at the bottom ends is larger than the diameter of the screw rod.
Preferably, the card and the first groove are staggered along the axis of the sleeve.
The invention has the beneficial effects that: the sleeve body is hexagonal and provided with the embossments at the top, the sleeve body can effectively stop rotating after being inserted into the preset hole, the sleeve body and the expansion nut are prevented from rotating in the hole along with the bolt, the tightness of the expansion bolt is ensured, the expansion nuts with different heights can be fixed after the clamping piece is bent by arranging the plurality of second grooves on the clamping piece, and the expansion opening degree of the sleeve can be adjusted while the expansion nuts are prevented from falling.
The features and advantages of the present invention will be described in detail by way of example with reference to the accompanying drawings.
[ description of the drawings ]
FIG. 1 is a front view of an embossed drop-resistant expansion bolt of the present invention;
FIG. 2 is a front view of a sleeve of an embossed drop-resistant expansion bolt of the present invention;
FIG. 3 is a top view of a sleeve of an embossed drop-resistant expansion bolt of the present invention;
FIG. 4 is a front view of an expansion nut of an embossed drop-resistant expansion bolt of the present invention;
fig. 5 is a front view of a bolt of an embossed type anti-drop expansion bolt of the present invention.
In the figure: 1-bolt, 11-hexagonal screw head, 12-screw, 2-sleeve, 21-sleeve body, 211-embossing, 212-first groove, 213-through hole, 22-card, 221-second groove, 3-washer, 4-spring washer, 5-expansion nut and 51-threaded hole.
[ detailed description ] of the invention
Referring to fig. 1 to 5, the embossed anti-falling expansion bolt of the present invention comprises a bolt 1, a sleeve 2, a gasket 3, a spring washer 4 and an expansion nut 5, wherein the sleeve 2 comprises a sleeve body 21 with a through hole 213 at the center and a plurality of clamping pieces 22 at the bottom of the sleeve body 21, the top of the sleeve body 21 is provided with an embossing 211, the outer wall of the sleeve body 21 is provided with a plurality of first grooves 212 penetrating the pipe wall from the center to the bottom, the expansion nut 5 is in a truncated cone shape and is provided with a threaded hole 51 at the center, the clamping pieces 22 are obliquely arranged at the bottom of the sleeve body 21 and form a flaring, the inclination angle of the clamping pieces 22 is adapted to the expansion nut 5, the inner wall of the clamping pieces 22 close to the bottom is provided with a plurality of second grooves 221 and can be inwards bent along the second grooves 221 to form a cavity so as to fix the expansion nut 5 inside, the bolt 1 comprises a hexagonal screw head 11 and a screw rod 12 with external threads, the screw rod 12 sequentially penetrates through a spring washer 4, a gasket 3, a sleeve 2 and an expansion nut 5 from top to bottom, the sleeve body 21 and a clamping piece 22 are of an integrated structure, the sleeve body 21 is of a hexagonal cylinder shape, the embossing 211 is of a diagonal embossing or straight embossing, the length of the embossing 211 is 1/4-1/3 of the length of the sleeve body 21, the number of the second grooves 221 is at least two, the distance between the bottom ends of the clamping pieces 22 after the clamping pieces 22 are inwards bent along the second grooves 221 at the bottommost end is larger than the diameter of the screw rod 12, and the clamping pieces 22 and the first grooves 212 are distributed in a staggered mode along the axis of the sleeve 2.
The working process of the invention comprises the following steps:
in the working process of the embossed anti-falling expansion bolt, firstly, an expansion nut 5 is placed in a flaring in a clamping piece 22 at the bottom end of a sleeve 2, the clamping piece 22 is inwards bent along a second groove 221, so that the expansion nut 5 is fixed in a cavity formed by bending the clamping piece 22, and the sleeve 2 is inserted into a preset hole in a downward direction of the clamping piece 22. Then, the through hole of the to-be-fixed piece is aligned with the preset hole on the ground or the wall body, and the bolt 1 is inserted into the preset hole after passing through the gasket 3 and the spring washer 4. The bolt 1 is tightened such that the expansion nut 5 is retracted along the shank 12 of the bolt 1, thereby expanding the sleeve 2 along the first groove 212.
The sleeve body is hexagonal and provided with the embossments at the top, the sleeve body can effectively stop rotating after being inserted into the preset hole, the sleeve body and the expansion nut are prevented from rotating in the hole along with the bolt, the tightness of the expansion bolt is ensured, the expansion nuts with different heights can be fixed after the clamping piece is bent by arranging the plurality of second grooves on the clamping piece, and the expansion opening degree of the sleeve can be adjusted while the expansion nuts are prevented from falling.
The above embodiments are illustrative of the present invention, and not limiting, and any simple modifications of the present invention fall within the scope of the present invention.
Claims (5)
1. An embossing type anti-falling expansion bolt is characterized in that: comprises a bolt (1), a sleeve (2), a gasket (3), a spring washer (4) and an expansion nut (5), wherein the sleeve (2) comprises a sleeve body (21) with a through hole (213) at the center and a plurality of clamping pieces (22) positioned at the bottom of the sleeve body (21), embossing (211) are arranged at the top of the sleeve body (21), a plurality of first grooves (212) which extend from the center to the bottom end and penetrate through the wall of the sleeve body (21) are arranged on the outer wall of the sleeve body (21), the expansion nut (5) is in a truncated cone shape and is provided with a threaded hole (51) at the center, the clamping pieces (22) are obliquely arranged at the bottom of the sleeve body (21) and form a flaring, the inclination angle of the clamping pieces (22) is matched with the expansion nut (5), a plurality of second grooves (221) are arranged on the inner wall of the clamping pieces (22) close to the bottom end along the axial direction of the bolt (1) and can be inwards bent along the second grooves (221) to form a cavity so as to fix the expansion nuts (5) with different heights inside, the bolt (1) comprises a hexagonal screw head (11) and an outer screw (12), the expansion nut (5) penetrates through the gasket (3) from the outer screw (12) to the gasket (2), the number of the second grooves (221) is at least two, and the bottom end spacing of the cards (22) after the cards (22) are inwards bent along the second grooves (221) at the bottommost end is larger than the diameter of the screw (12).
2. An embossed drop-resistant expansion bolt as claimed in claim 1, wherein: the sleeve body (21) and the card (22) are of an integrated structure.
3. An embossed drop-resistant expansion bolt as claimed in claim 1, wherein: the sleeve body (21) is hexagonal cylindrical.
4. An embossed drop-resistant expansion bolt as claimed in claim 1, wherein: the embossing (211) is a twill embossing or a straight embossing, and the length of the embossing (211) is 1/4-1/3 of the length of the sleeve body (21).
5. An embossed drop-resistant expansion bolt as claimed in claim 1, wherein: the card (22) and the first groove (212) are distributed in a staggered manner along the axis of the sleeve (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811539733.7A CN109340234B (en) | 2018-12-17 | 2018-12-17 | Embossing type anti-drop expansion bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811539733.7A CN109340234B (en) | 2018-12-17 | 2018-12-17 | Embossing type anti-drop expansion bolt |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109340234A CN109340234A (en) | 2019-02-15 |
| CN109340234B true CN109340234B (en) | 2023-09-01 |
Family
ID=65304392
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811539733.7A Active CN109340234B (en) | 2018-12-17 | 2018-12-17 | Embossing type anti-drop expansion bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109340234B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2878581Y (en) * | 2006-04-04 | 2007-03-14 | 裴庭胜 | Wave expander ring type building anchor bolt |
| 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 |
| JP3212694U (en) * | 2017-07-10 | 2017-09-28 | 石橋 勝 | Loosening prevention bolt |
| CN209398692U (en) * | 2018-12-17 | 2019-09-17 | 嘉兴钰丰汽车零部件有限公司 | A kind of dropproof expansion bolt of pattern pressing type |
-
2018
- 2018-12-17 CN CN201811539733.7A patent/CN109340234B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2878581Y (en) * | 2006-04-04 | 2007-03-14 | 裴庭胜 | Wave expander ring type building anchor bolt |
| 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 |
| JP3212694U (en) * | 2017-07-10 | 2017-09-28 | 石橋 勝 | Loosening prevention bolt |
| CN209398692U (en) * | 2018-12-17 | 2019-09-17 | 嘉兴钰丰汽车零部件有限公司 | A kind of dropproof expansion bolt of pattern pressing type |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109340234A (en) | 2019-02-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110425214B (en) | Anti-theft bolt with anti-theft sleeve | |
| CN209398692U (en) | A kind of dropproof expansion bolt of pattern pressing type | |
| CN109340234B (en) | Embossing type anti-drop expansion bolt | |
| CN204512120U (en) | Connect bearing pin | |
| CN207278681U (en) | A kind of check bolt group | |
| CN210318115U (en) | Anti-loosening cap type nut | |
| CN109322889B (en) | Anti-falling expansion bolt | |
| CN207454481U (en) | A kind of anti-drop bolt component | |
| CN110578740B (en) | Prevent wood screw of plate fracture | |
| CN115958414A (en) | Device for assembling and disassembling flaring self-locking nut | |
| CN205858899U (en) | A kind of anchor expansion nut assembly | |
| CN211202585U (en) | Anti-loosening bolt | |
| CN211202560U (en) | Expansion anti-drop bolt | |
| CN211648755U (en) | Novel anti-theft bolt | |
| CN109322890B (en) | Quick installation type expansion bolt | |
| CN210440380U (en) | Self-tapping and self-drilling screw with good anti-loosening effect | |
| CN207229545U (en) | Speciality expansion anchor is used in one kind fixation | |
| CN209398694U (en) | A kind of Fast Installation type expansion bolt | |
| CN216343257U (en) | Expansion bolt capable of being repeatedly used | |
| CN201100300Y (en) | Multi-level top push fastener | |
| CN216158076U (en) | Wind power tower cylinder bolt assembly | |
| CN216044863U (en) | Anti-rotation expansion bolt | |
| CN109372862B (en) | Expansion bolt suitable for large aperture | |
| CN113847324A (en) | Anti-loosening bolt for bridge | |
| CN218953771U (en) | Antitheft screw nail |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| 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. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |