CN201433992Y - Double-positioning bolt - Google Patents
Double-positioning bolt Download PDFInfo
- Publication number
- CN201433992Y CN201433992Y CN2009201249868U CN200920124986U CN201433992Y CN 201433992 Y CN201433992 Y CN 201433992Y CN 2009201249868 U CN2009201249868 U CN 2009201249868U CN 200920124986 U CN200920124986 U CN 200920124986U CN 201433992 Y CN201433992 Y CN 201433992Y
- Authority
- CN
- China
- Prior art keywords
- polished rod
- polish rod
- rod
- double
- flange plate
- 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.)
- Expired - Fee Related
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- Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
Abstract
The utility model discloses a double-positioning bolt which comprises a bolt head (1), a flange plate (2), a polish rod I (3) and a thread rod (4); the bottom end of the thread rod (4) is provided with a cylindrical positioning column (5); a polish rod II (6) is arranged between the polish rod I (3) and the flange plate (2); the outer diameter of the polish rod II (6) is slightly more than the outer diameter of the polish rod I (3); and a chamfering (7) is arranged between the polish rod II (6) and a polish rod I (3). The double-positioning bolt has the advantages that: two connected parts canbe better positioned by the double-positioning bolt, and the anti-loosening effect is greatly improved accordingly.
Description
Technical field:
The utility model relates to a kind of pair of holding down bolt.
Background technique:
At present, the cone that conventional bolt generally includes bolt head, flange plate, polished rod, screw rod and is positioned at the screw rod bottom, described flange plate is between bolt head and polished rod.The usage mode of this bolt is polished rod and screw rod to be penetrated be arranged on two through holes that are connected on the part, screws nut then and come to carry out fastening to being connected part on screw rod.Because two are connected the external diameter that through hole internal diameter that part is provided with all can be slightly larger than polished rod usually, therefore, two are connected part and produce loosening phenomenon through regular meeting under vibration, thereby can't realize the location that is connected part to two preferably.
The model utility content:
The technical problems to be solved in the utility model is, provides a kind of and can be connected part to two preferably and position, thereby improve two holding down bolts of anti-loosing effect greatly.
Technical solution of the present utility model is, a kind of two holding down bolts with following structure are provided, and it comprises bolt head, flange plate, polished rod I and threaded stem; Described threaded stem bottom is provided with a cylindrical locating column; Be polished rod II between described polished rod I and the flange plate; The external diameter of described polished rod II is slightly larger than the external diameter of polished rod I; Be provided with chamfering between described polished rod II and the polished rod I.
After adopting above structure, compared with prior art, the utlity model has following advantage: because the utility model is provided with polished rod II again between polished rod I and flange plate, and the external diameter of polished rod II is slightly larger than the external diameter of polished rod I, therefore, polished rod II just can tensioner in being connected the through hole of part, in other words, very close to each other between the outer wall of polished rod II and the through-hole wall, position thereby can be connected part to two preferably; In addition, because the utility model is provided with a cylindrical locating column in the threaded stem bottom, therefore, when threaded stem pass be arranged on the through hole that is connected part after, this cylindrical locating column can be stuck in the locating slot that cooperates with cylindrical locating column that is arranged on the 3rd part, locatees preferably thereby be connected part to two.Just because of double locating structure of the present utility model, thereby improved the anti-loosing effect of bolt greatly.
Description of drawings:
Accompanying drawing is the structural representation of the two holding down bolts of the utility model.
Chamfering as shown in the figure, 1, bolt head, 2, flange plate, 3, polished rod I, 4, threaded stem, 5, cylindrical locating column, 6, polished rod II, 7.
Specific embodiment:
The utility model is described in further detail below in conjunction with the drawings and specific embodiments:
As shown in drawings, in this specific embodiment, the two holding down bolts of the utility model comprise bolt head 1, flange plate 2, polished rod I 3 and threaded stem 4; Described threaded stem 4 bottoms are provided with a cylindrical locating column 5; Be polished rod II 6 between described polished rod I 3 and the flange plate 2; The external diameter of described polished rod II 6 is slightly larger than the external diameter of polished rod I 3; Be provided with chamfering 7 between described polished rod II 6 and the polished rod I 3.
Claims (1)
1, a kind of pair of holding down bolt, it comprises bolt head (1), flange plate (2), polished rod I (3) and threaded stem (4), it is characterized in that: described threaded stem (4) bottom is provided with a cylindrical locating column (5); Be polished rod II (6) between described polished rod I (3) and the flange plate (2); The external diameter of described polished rod II (6) is slightly larger than the external diameter of polished rod I (3); Be provided with chamfering (7) between described polished rod II (6) and the polished rod I (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201249868U CN201433992Y (en) | 2009-07-21 | 2009-07-21 | Double-positioning bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201249868U CN201433992Y (en) | 2009-07-21 | 2009-07-21 | Double-positioning bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201433992Y true CN201433992Y (en) | 2010-03-31 |
Family
ID=42052801
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201249868U Expired - Fee Related CN201433992Y (en) | 2009-07-21 | 2009-07-21 | Double-positioning bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201433992Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102758822A (en) * | 2012-08-24 | 2012-10-31 | 四川虹欧显示器件有限公司 | Bolt structure for preventing thread from sliding |
| CN102950574A (en) * | 2011-08-20 | 2013-03-06 | 苏州敏喆机械有限公司 | Pump plate mounting tool |
| CN106168246A (en) * | 2016-08-24 | 2016-11-30 | 江苏昊嘉不锈钢标准件有限公司 | A kind of high strength anti-loose screw column |
-
2009
- 2009-07-21 CN CN2009201249868U patent/CN201433992Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102950574A (en) * | 2011-08-20 | 2013-03-06 | 苏州敏喆机械有限公司 | Pump plate mounting tool |
| CN102758822A (en) * | 2012-08-24 | 2012-10-31 | 四川虹欧显示器件有限公司 | Bolt structure for preventing thread from sliding |
| CN106168246A (en) * | 2016-08-24 | 2016-11-30 | 江苏昊嘉不锈钢标准件有限公司 | A kind of high strength anti-loose screw column |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100331 Termination date: 20100721 |