CN2643060Y - Locknut - Google Patents
Locknut Download PDFInfo
- Publication number
- CN2643060Y CN2643060Y CN 03255719 CN03255719U CN2643060Y CN 2643060 Y CN2643060 Y CN 2643060Y CN 03255719 CN03255719 CN 03255719 CN 03255719 U CN03255719 U CN 03255719U CN 2643060 Y CN2643060 Y CN 2643060Y
- Authority
- CN
- China
- Prior art keywords
- nut
- spring sheet
- bolt
- hole
- thread
- 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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- Bolts, Nuts, And Washers (AREA)
Abstract
The utility model relates to a linking fastener, specifically relating to an anti-loose nut. The fastener includes a nut body; the bottom of the nut is provided with a concave groove; a spring sheet with a through hole in the middle is arranged inside of the concave groove; at least two convex arcs are distributed inner side of the spring sheet along the circumference. During application, after the nut is screwed into the bolt, the convex section of the spring sheet through hole fixed in the nut is inserted into the thread of the bolt and pressed onto the inclined plane of the thread. Since the spring sheet generates an elastic deformation, elastic pressure and friction exist between the spring sheet and the inclined plane of the bolt; the friction plays an role of resisting the reverse turning of the nut so as to reach the purpose of anti-looseness. The device has advantages of simple structure, lower cost and good anti-looseness effect.
Description
Technical field
The utility model relates to a kind of connection fastening piece, specifically relates to a kind of lock nut.
Background technique
In order to prevent that connecting fastener takes place to become flexible, and needs the locking device of the connection fastening piece of special construction, i.e. projection welding formula lock nut in the process of vibration.A kind of known lock nut that has friction ring is arranged: an annulus compression spring that has lug is being riveted at the top of nut.By this structure, from coupling nut, with a bigger moment of torsion this device is tightened all the time, and the lug of annulus compression spring tightly is pressed on the flank of thread of bolt and plays locking effect.When dismounting, nut spring sheet and bolt separately also will just can be finished with a bigger reactive torque all the time.This device riveted joint cost height, materials are many, its course of working complexity, inconvenience when the installation and removal nut, labor intensity is big.
The model utility content
The purpose of the utility model just is to provide a kind of materials to economize, and nut lock nut is easily installed, dismantled to low cost of manufacture.
The purpose of the utility model can realize by following measure: it comprises nut body, offers groove in the bottom of nut body, is provided with the spring sheet of through hole in the middle of being mounted with in groove, is uniformly distributed with at least two convex arcs along the circumference in spring sheet through hole inboard.During use, after nut is screwed into bolt, in the screw thread of convex arc part on the spring sheet through hole of being fixed in the nut body, and be pressed on the slope of thread with regard to stud bolt.Since spring sheet generation resiliently deformable, thus between the slope of thread of spring sheet and bolt, exist elastic pressure and frictional force, and this frictional force just plays the effect that stops nut oppositely to circle round, thereby reaches locking purpose.
Because the utility model adopts and offer groove on nut, in groove, settle the structure of spring sheet, make to the utlity model has advantages such as simple in structure, with low cost, that anti-loosing effect is good.
Below in conjunction with embodiment shown in the drawings, the utility model is described in further detail.
Description of drawings
Fig. 1 is a structure sectional view of the present utility model.
Fig. 2 is the worm's eye view of the utility model Fig. 1.
Fig. 3 is the plan view of the utility model spring sheet.
Fig. 4 is the sectional view of the A-A of the utility model Fig. 3.
Embodiment
As shown in the figure: the utility model comprises nut body 1, offer groove 2 in the bottom of nut body 1, be provided with the spring sheet 3 of through hole in the middle of in groove 2, being mounted with, be uniformly distributed with the convex arc 31 that has two at least along the circumference, generally establish 3 convex arcs 31 for good in spring sheet 3 through hole inboards.
The groove 2 of nut body 1 bottom is a circular groove, spring sheet 2 is a disk, convex arc 31 in it is interior concave circular arc, and protrude nut body 1 internal diameter 1-3mm, the through hole internal diameter of spring sheet 3 is consistent with nut body (1) internal diameter, the general outline of the thickness of spring sheet 3 like this, can guarantee that convex arc 31 is stuck on the screw thread of bolt less than the pitch of thread.
Claims (2)
1, a kind of lock nut, comprise nut body (1), offer groove (2) in the bottom of nut body (1), be provided with the spring sheet (3) of through hole in the middle of in groove (2), being mounted with, it is characterized in that: be uniformly distributed with the convex arc (31) that has two protrusions at least along the circumference in spring sheet (3) through hole inboard.
2, according to the described lock nut of claim 1, it is characterized in that: warp is interior through consistent with nut body (1) in described spring sheet (3) through hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03255719 CN2643060Y (en) | 2003-07-18 | 2003-07-18 | Locknut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03255719 CN2643060Y (en) | 2003-07-18 | 2003-07-18 | Locknut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2643060Y true CN2643060Y (en) | 2004-09-22 |
Family
ID=34295081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03255719 Expired - Fee Related CN2643060Y (en) | 2003-07-18 | 2003-07-18 | Locknut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2643060Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100425847C (en) * | 2006-03-27 | 2008-10-15 | 于逊刚 | Locking nut |
| CN101785147B (en) * | 2007-11-30 | 2012-11-28 | 菲尼克斯电气公司 | Arrangement for screw locking electric connecting terminals |
| CN104179772A (en) * | 2014-09-11 | 2014-12-03 | 北京长安汽车工程技术研究有限责任公司 | Novel self looseness preventing nut |
-
2003
- 2003-07-18 CN CN 03255719 patent/CN2643060Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100425847C (en) * | 2006-03-27 | 2008-10-15 | 于逊刚 | Locking nut |
| CN101785147B (en) * | 2007-11-30 | 2012-11-28 | 菲尼克斯电气公司 | Arrangement for screw locking electric connecting terminals |
| CN104179772A (en) * | 2014-09-11 | 2014-12-03 | 北京长安汽车工程技术研究有限责任公司 | Novel self looseness preventing nut |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Chen Chaoyang Document name: Notification of Termination of Patent Right |
|
| 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 |