CN107401544A - A kind of expansion bolt - Google Patents
A kind of expansion bolt Download PDFInfo
- Publication number
- CN107401544A CN107401544A CN201710731664.9A CN201710731664A CN107401544A CN 107401544 A CN107401544 A CN 107401544A CN 201710731664 A CN201710731664 A CN 201710731664A CN 107401544 A CN107401544 A CN 107401544A
- Authority
- CN
- China
- Prior art keywords
- expansion
- tube
- expansion tube
- screw rod
- head
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000003780 insertion Methods 0.000 claims abstract description 9
- 230000037431 insertion Effects 0.000 claims abstract description 9
- 238000000034 method Methods 0.000 description 7
- 238000010276 construction Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 238000009966 trimming 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Hand Tools For Fitting Together And Separating, Or Other Hand Tools (AREA)
Abstract
A kind of expansion bolt, it includes screw rod, circular expansion tube, plain washer, spring washer and nut, there is the external screw thread to match with nut the front portion of screw rod, there is round table-like expansion-head at rear portion, the diameter of the front side bottom surface of expansion-head is less than the diameter of rear side bottom surface, the diameter of the rear side bottom surface of expansion-head is more than the internal diameter of expansion tube, the rear portion of expansion tube is circumferential uniform some axially extending along expansion tube and penetrates to the bar-shaped trough of expansion tube rear end, screw sleeve is in expansion tube, the front end of the anterior self-expanding pipe of screw rod is stretched out, the rear end of the expanded pipe of expansion-head is caught in the tube chamber of expansion tube, nut, spring washer, plain washer is sequentially arranged at the front portion of screw rod from front to back, the front portion of the expansion tube is circumferential to be provided with insertion to tube chamber and the notch of arc, the circular arc of notch to central angle be 30 120 °.This expansion bolt solves the aesthetic problem of useless expansion bolt, it also avoid removing potential safety hazard caused by expansion bolt using the mode of cutting.
Description
Technical field
The present invention relates to fastener areas, specifically a kind of expansion bolt.
Background technology
Existing expansion bolt, it includes screw rod, expansion tube, plain washer, spring washer and nut, and the front portion of screw rod has
The external screw thread that matches with nut, rear end have an expansion-head, and the rear end of expansion tube is evenly equipped with some along its axially extending opening
Groove, screw rod is actively set in expansion tube and the front end of screw rod and expansion-head are stretched out from the both ends of expansion tube respectively, expansion-head
It is located at the same side with open slot, plain washer, spring washer and nut are set in the front end of screw rod successively from the front to the back.This structure
Expansion bolt remove it is difficult because being taken out on expansion tube without force is borrowed, it is necessary to clamping expansion tube with nipper plier could take out
Process it is complicated and laborious, also a kind of mode be directly expansion bolt is exposed wall part it is sawed-off, but this side
Formula not only influences to be also possible to that personnel can be scratched at attractive in appearance but also trimming, forms potential safety hazard.
The content of the invention
The technical problems to be solved by the invention are to provide a kind of simple in construction and easy-to-dismount expansion bolt.
In order to solve the above technical problems, the invention provides a kind of expansion bolt, it include screw rod, circular expansion tube,
Plain washer, spring washer and nut, the front portion of screw rod have the external screw thread to match with nut, rear portion to have round table-like expansion-head,
The diameter of the front side bottom surface of expansion-head is less than the diameter of rear side bottom surface, and the diameter of the rear side bottom surface of expansion-head is more than the interior of expansion tube
Footpath, the rear portion of expansion tube is circumferential uniform some axially extending along expansion tube and penetrates to the bar-shaped trough of expansion tube rear end, screw sleeve
In expansion tube, the front end of the anterior self-expanding pipe of screw rod is stretched out, and the rear end of the expanded pipe of expansion-head is caught in the pipe of expansion tube
Intracavitary, nut, spring washer, plain washer are sequentially arranged at the front portion of screw rod from front to back, and the front portion of the expansion tube is circumferential
Insertion is provided with to tube chamber and the notch of arc, the circular arc of notch to central angle be 30-120 °.
For the sake of simple declaration problem, this expansion bolt is referred to as to a kind of expansion bolt of the present invention below.
The application method of this expansion bolt is as follows：A hole corresponding with expansion bolt is made a call on metope or ground first,
Expansion tube is placed in the hole together with suit screw rod in the inner, expansion-head, the front end of expansion tube is concordant with metope or ground,
Plain washer and spring washer and tightening nut are finally put, screw rod pulls in expansion-head in expansion tube, and the rear end of expansion tube is swollen
Greatly, you can reach the purpose of fastening.When needing to disassemble this expansion bolt, nut, plain washer and spring pad are first removed
Circle, screw rod is tapped, expansion-head is departed from from the rear end of expansion tube, then chisel wall on front side of expansion tube to the groove for exposing arc
Mouthful, then straight screwdriver is inserted in notch, is pulled out using lever principle as fulcrum using metope or ground, finally taken out
Screw rod.
The advantages of this expansion bolt：This expansion bolt is simple in construction easy to process, with straight screwdriver can easy removal,
Solve the aesthetic problem of useless expansion bolt, it also avoid potential safety hazard caused by using the mode of cutting.
To reach the more preferable using effect of this expansion bolt, its preferred scheme is as follows：
As preferable, the front end of the expansion tube at the both ends of circular arc radially respectively in position corresponding to respectively opening
There is an insertion to tube chamber and the groove of front and rear extension, be in non-interconnected state between groove and notch.
Two grooves of expansion tube front end can play a part of marking arc-shaped slot to help to tear open in the position of tube wall
Expansion bolt is removed except the personnel of expansion bolt are quickly found out arc-shaped slot, can be according to two grooves in demolishing process
Position only chisel wall or ground corresponding to this position, destruction is minimized.
Brief description of the drawings
Fig. 1 is the structural representation of this expansion bolt.
Embodiment
Referring to Fig. 1, a kind of expansion bolt, it includes screw rod 1, circular expansion tube 2, plain washer 3, spring washer 4 and spiral shell
Mother 5, the front portion of screw rod 1 has the external screw thread to match with nut 5, rear portion to have round table-like expansion-head 1a, expansion-head 1a front side
The diameter of bottom surface is less than the diameter of rear side bottom surface, and the diameter of expansion-head 1a rear side bottom surface is more than the internal diameter of expansion tube 2, expansion tube
To the bar-shaped trough 2a of the rear end of expansion tube 2, screw rod 1 is sleeved on circumferential uniform some axially extending along the expansion tube 2 and insertion in 2 rear portion
In expansion tube 2, the front end of the anterior self-expanding pipe 2 of screw rod 1 is stretched out, and the rear end of the expanded pipes 2 of expansion-head 1a is caught in expansion tube 2
In tube chamber, nut 5, spring washer 4, plain washer 3 are sequentially arranged at the front portion of screw rod 1 from front to back, before the expansion tube 2
Portion is circumferentially provided with insertion to tube chamber and the notch 6 of arc, the circular arc of notch 6 to central angle be 30-120 °.
The front end of the expansion tube 2 radially corresponds at the both ends of circular arc in position respectively is respectively provided with an insertion
It is in non-interconnected state between groove 7 and notch 6 to tube chamber and the groove of front and rear extension 7.
The application method of this expansion bolt is as follows：A hole corresponding with expansion bolt is made a call on metope or ground first,
Expansion tube 2 is placed in the hole together with screw rod 1, the expansion-head 1a of suit in the inner, front end and metope or the ground of expansion tube 2
Concordantly, plain washer 3 and spring washer 4 and tightening nut 5 are finally put, screw rod 1 pulls in expansion-head 1a in expansion tube 2, expands
The rear end of pipe 2 is swollen, you can reaches the purpose of fastening.When need this expansion bolt is disassembled when, first remove nut 5,
Plain washer 3 and spring washer 4, screw rod 1 is tapped, expansion-head 1a is departed from from the rear end of expansion tube 2, before then chiseling expansion tube 2
Then straight screwdriver is inserted in notch 6, utilized using metope or ground as fulcrum to the notch 6 for exposing arc by the wall of side
Lever principle is pulled out, and finally takes out screw rod 1.
The advantages of this expansion bolt：This expansion bolt is simple in construction easy to process, with straight screwdriver can easy removal,
Solve the aesthetic problem of useless expansion bolt, it also avoid potential safety hazard caused by using the mode of cutting.
Two grooves 7 of the front end of expansion tube 2 can play a part of marking arc-shaped slot to help in the position of tube wall
The personnel for removing expansion bolt are quickly found out arc-shaped slot and expansion bolt are removed, can be recessed according to two in demolishing process
The wall or ground corresponding to this position are only chiseled in the position of groove 7, and destruction is minimized.
Claims (2)
1. a kind of expansion bolt, it includes screw rod, circular expansion tube, plain washer, spring washer and nut, and the front portion of screw rod has
There is round table-like expansion-head at the external screw thread that matches with nut, rear portion, and the diameter of the front side bottom surface of expansion-head is less than rear side bottom surface
Diameter, the diameter of the rear side bottom surface of expansion-head is more than the internal diameter of expansion tube, and the rear portion of expansion tube is circumferential uniform some along expansion
Axially extending and insertion to the bar-shaped trough of expansion tube rear end, screw sleeve is managed to be mounted in expansion tube, the anterior self-expanding pipe of screw rod
Front end is stretched out, and the rear end of the expanded pipe of expansion-head is caught in the tube chamber of expansion tube, and nut, spring washer, plain washer are from front to back
Ground is sequentially arranged at the front portion of screw rod, it is characterised in that：The front portion of the expansion tube is circumferential to be provided with insertion to tube chamber and arc
Notch, the circular arc of notch to central angle be 30-120 °.
A kind of 2. expansion bolt according to claim 1, it is characterised in that：Radially distinguish the front end of the expansion tube
In position corresponding to being respectively provided with an insertion at the both ends of circular arc to tube chamber and the groove of front and rear extension, between groove and notch
In non-interconnected state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710731664.9A CN107401544A (en) | 2017-08-23 | 2017-08-23 | A kind of expansion bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710731664.9A CN107401544A (en) | 2017-08-23 | 2017-08-23 | A kind of expansion bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107401544A true CN107401544A (en) | 2017-11-28 |
Family
ID=60396610
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710731664.9A Withdrawn CN107401544A (en) | 2017-08-23 | 2017-08-23 | A kind of expansion bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107401544A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372863A (en) * | 2018-12-17 | 2019-02-22 | 嘉兴钰丰汽车零部件有限公司 | A kind of anti-transfer expansion bolt of gasket-type |
| CN109869394A (en) * | 2019-04-10 | 2019-06-11 | 罗定市麟千五金科技有限公司 | Setscrew |
| CN111255786A (en) * | 2020-04-01 | 2020-06-09 | 夏俊文 | Slider formula expansion bolts |
| CN111594519A (en) * | 2019-09-10 | 2020-08-28 | 李宝彦 | Dismantle convenient novel expansion bolts |
| CN112196875A (en) * | 2020-10-22 | 2021-01-08 | 赵宝臣 | Anti-loosening quick expansion bolt |
| CN115111244A (en) * | 2022-07-22 | 2022-09-27 | 河北省送变电有限公司 | Expansion bolt |
| CN115287966A (en) * | 2022-09-05 | 2022-11-04 | 大成工程建设集团有限公司 | Expansion screw cement pavement joint reinforcing structure, laying method and application |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2249841Y (en) * | 1996-04-22 | 1997-03-19 | 杨延光 | Expanded bolt without bared screw-rod |
| EP1039150A2 (en) * | 1999-03-23 | 2000-09-27 | HILTI Aktiengesellschaft | Expanding anchor |
| CN2530086Y (en) * | 2002-04-03 | 2003-01-08 | 施量 | Economic expansion screw |
| CN204003872U (en) * | 2014-06-30 | 2014-12-10 | 吴泽文 | Expansion anchor bolts |
| CN104728234A (en) * | 2014-05-27 | 2015-06-24 | 徐宝余 | Reusable broaching hole anchor bolt |
| CN204436987U (en) * | 2015-01-30 | 2015-07-01 | 济南大学 | A kind of dismountable expansion bolt |
| CN207131693U (en) * | 2017-08-23 | 2018-03-23 | 崔盟威 | A kind of expansion bolt |
-
2017
- 2017-08-23 CN CN201710731664.9A patent/CN107401544A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2249841Y (en) * | 1996-04-22 | 1997-03-19 | 杨延光 | Expanded bolt without bared screw-rod |
| EP1039150A2 (en) * | 1999-03-23 | 2000-09-27 | HILTI Aktiengesellschaft | Expanding anchor |
| CN2530086Y (en) * | 2002-04-03 | 2003-01-08 | 施量 | Economic expansion screw |
| CN104728234A (en) * | 2014-05-27 | 2015-06-24 | 徐宝余 | Reusable broaching hole anchor bolt |
| CN204003872U (en) * | 2014-06-30 | 2014-12-10 | 吴泽文 | Expansion anchor bolts |
| CN204436987U (en) * | 2015-01-30 | 2015-07-01 | 济南大学 | A kind of dismountable expansion bolt |
| CN207131693U (en) * | 2017-08-23 | 2018-03-23 | 崔盟威 | A kind of expansion bolt |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109372863A (en) * | 2018-12-17 | 2019-02-22 | 嘉兴钰丰汽车零部件有限公司 | A kind of anti-transfer expansion bolt of gasket-type |
| CN109869394A (en) * | 2019-04-10 | 2019-06-11 | 罗定市麟千五金科技有限公司 | Setscrew |
| CN111594519A (en) * | 2019-09-10 | 2020-08-28 | 李宝彦 | Dismantle convenient novel expansion bolts |
| CN111255786A (en) * | 2020-04-01 | 2020-06-09 | 夏俊文 | Slider formula expansion bolts |
| CN111255786B (en) * | 2020-04-01 | 2021-12-31 | 金华市荣创五金工具有限公司 | Slider formula expansion bolts |
| CN112196875A (en) * | 2020-10-22 | 2021-01-08 | 赵宝臣 | Anti-loosening quick expansion bolt |
| CN112196875B (en) * | 2020-10-22 | 2022-04-19 | 浙江玉强机械股份有限公司 | Anti-loosening quick expansion bolt |
| CN115111244A (en) * | 2022-07-22 | 2022-09-27 | 河北省送变电有限公司 | Expansion bolt |
| CN115287966A (en) * | 2022-09-05 | 2022-11-04 | 大成工程建设集团有限公司 | Expansion screw cement pavement joint reinforcing structure, laying method and application |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20171128 |
|
| WW01 | Invention patent application withdrawn after publication |