CN2327830Y - Screw bolt - Google Patents
Screw bolt Download PDFInfo
- Publication number
- CN2327830Y CN2327830Y CN 98233795 CN98233795U CN2327830Y CN 2327830 Y CN2327830 Y CN 2327830Y CN 98233795 CN98233795 CN 98233795 CN 98233795 U CN98233795 U CN 98233795U CN 2327830 Y CN2327830 Y CN 2327830Y
- Authority
- CN
- China
- Prior art keywords
- screw
- screw bolt
- groove
- straight groove
- driver
- 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
Links
Images
Landscapes
- Connection Of Plates (AREA)
Abstract
The utility model discloses a screw bolt. The head of the screw bolt is provided with a straight groove, and the bulging parts on both sides of the straight groove are provided with rotating inclined surfaces in the loosening screw bolt direction; one side of the rotating inclined surface is arranged in the groove bottom and the other side is arranged on the groove top, which causes the screw driver can only apply force to the screw bolt in the tightening direction. The screw bolt can not be dismounted after being tightened, and the screw bolt can be applied to the installation of the bicycle signboard and the vehicular license plate or other occasions needing anti-dismounting.
Description
The utility model relates to a kind of screw, has the screw of straight groove on especially a kind of screw head.
Existing screw can be used the instrument installation or removal, and rivet is non-dismountable after installation, but the installation of rivet needs the intensity of special tool and riveted joint less, generally only is used for the connection of sheet member.Need big join strength and require in the non-removable occasion of link at some, existing screw or rivet are just all inapplicable.
The purpose of this utility model provides a kind of non-removable screw.
Main technical schemes of the present utility model is: have straight groove on the screw head of screw, the protruding part on straight groove both sides has spin canting unscrewing on the screw orientation, one side of spin canting on one side on the groove top, makes screw-driver tighten the direction application of force to screw at bottom land.
Screw of the present utility model just can be installed with screw-driver, can't the application of force reach non-removable purpose thereby have spin canting that screw-driver is being unscrewed on the direction of screw on the direction unscrewing of screw head.This screw can be applicable to occasions such as bicycle theft-prevention signboard, car plate, in use makes screw head, afterbody or is connected outside the thing surface with the nut of screw fit is outstanding, screw can not be pulled down with other instrument.
Fig. 1 is an an embodiment's of the present utility model plan view;
Fig. 2 is the left view of screw shown in Figure 1;
Fig. 3 be Fig. 1 show the screw plan view.
As shown in Figure 1, 2, 3, have straight groove 2 on the screw head 1 of screw, the protruding part on straight groove 2 both sides is unscrewing spin canting 5 on the screw orientation, and one side of spin canting 5 is at bottom land 3, another side makes screw-driver tighten the direction application of force to screw on groove top 4.
Claims (1)
1, a kind of screw, on screw head (1), have straight groove (2), it is characterized in that: the protruding part on straight groove (2) both sides has spin canting (5) unscrewing on the screw orientation, one side of spin canting (5) is in bottom land (3), another side makes screw-driver tighten the direction application of force to screw on groove top (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98233795 CN2327830Y (en) | 1998-03-13 | 1998-03-13 | Screw bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98233795 CN2327830Y (en) | 1998-03-13 | 1998-03-13 | Screw bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2327830Y true CN2327830Y (en) | 1999-07-07 |
Family
ID=33982455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98233795 Expired - Fee Related CN2327830Y (en) | 1998-03-13 | 1998-03-13 | Screw bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2327830Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102066776A (en) * | 2008-06-24 | 2011-05-18 | 株式会社利富高 | Clip |
| CN102141077A (en) * | 2011-05-15 | 2011-08-03 | 西安科技大学 | Disassembly-preventing screw |
-
1998
- 1998-03-13 CN CN 98233795 patent/CN2327830Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102066776A (en) * | 2008-06-24 | 2011-05-18 | 株式会社利富高 | Clip |
| US8419330B2 (en) | 2008-06-24 | 2013-04-16 | Nifco Inc. | Clip |
| CN102141077A (en) * | 2011-05-15 | 2011-08-03 | 西安科技大学 | Disassembly-preventing screw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |