CN201031852Y - Releasing-resistant nut - Google Patents
Releasing-resistant nut Download PDFInfo
- Publication number
- CN201031852Y CN201031852Y CNU2007200399816U CN200720039981U CN201031852Y CN 201031852 Y CN201031852 Y CN 201031852Y CN U2007200399816 U CNU2007200399816 U CN U2007200399816U CN 200720039981 U CN200720039981 U CN 200720039981U CN 201031852 Y CN201031852 Y CN 201031852Y
- Authority
- CN
- China
- Prior art keywords
- nut
- dismantling
- straight
- straight groove
- straight trough
- 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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Abstract
The utility model relates to an anti-dismantling nut comprising a nut; the inner wall of the nut is equipped with a straight groove whose arc cross section changes from shallow to deep along the thread direction vertically; the vertical two ends of the straight groove are not penetrated and steel balls are placed in the straight groove; the steel balls are matched with a cove part of the straight groove in a rolling way and clamped with the straight groove tip; a plug is arranged in the nut screw hole and the upper rim of the inner wall of the nut screw hole is equipped with three straight grooves evenly and the external surface of the circle of the plug bottom is symmetrically equipped with three laminar lugs. The anti-dismantling nut is equipped with three straight grooves and three anti-dismantling pieces consisting of steel balls; in this way, the anti-dismantling effect gained after the nut being matched with a bolt is better and at the same time the cross section shape of the nut shape is an ortho-dodecagon and the screwing force provided can not make the anti-dismantling part deformed or crushed; when the screwing force is more than a set value, the edges of the nut can be deformed to make the tools like wrench skid and the nut can not be dismantled; in this way, the anti-dismantling effect of the nut is further promoted.
Description
Technical field
The utility model relates to a kind of fastening nut of scyewed joint member that is used for, particularly a kind of anti-assembling nut.
Background technique
China utility model patent CN2802169Y discloses a kind of anti-assembling nut, include nut and be arranged on anti-inloading part on the nut, on the inwall of nut screw, vertically offer two along hand of spiral from shallow to deep the cross section be the straight trough of arc, and vertical two ends of straight trough are not for running through, prevent that wherein unloading thing is steel ball, steel ball rolls with straight trough fornix position and cooperates, with straight trough tip snap-fit, in order to prevent that steel ball from dropping out in the nut screw, in the nut screw, be equipped with the stopper of a cylinder lid shape, the external diameter of stopper equates with the internal diameter of nut, is symmetrically arranged with two sheet shape lugs on the circumferential outer surface of stopper near the lid bottom.The straight trough that holds steel ball in the above-mentioned patent is two and is symmetrical arranged, cooperate formation to prevent unloading with bolt by the steel ball in it, but two straight troughs are to be symmetrical arranged, the anti-force limited of unloading to bolt, existing anti-theft nut profile shape of cross section all is a regular hexagon simultaneously, the very big strength of screwing still can be provided when dismantling with instruments such as spanners, make the anti-retaining spare distortion even broken of unloading, cause anti-theft nut to lose efficacy.
Summary of the invention
The purpose of this utility model is at not enough defective of the prior art, and a kind of anti-better anti-assembling nut of performance that unloads is provided.
For achieving the above object, the utility model adopts a kind of anti-assembling nut, comprise nut, on the inwall of nut screw, vertically offer along hand of spiral from shallow to deep the cross section be the straight trough of arc, and vertical two ends of straight trough are not for running through, in straight trough, be provided with steel ball, steel ball rolls with straight trough fornix position and cooperates, with straight trough tip snap-fit, in the nut screw, be provided with a stopper, radial equipartition has three straight troughs in the inwall upper edge of nut screw, is symmetrically arranged with three sheet shape lugs on the circumferential outer surface of stopper bottom.
It is dodecagon that this practicality further is set to nut profile shape of cross section.
The utility model is by providing a kind of anti-assembling nut, this anti-assembling nut has three straight troughs and three anti-inloading parts that have steel ball to constitute, cooperate the anti-better effects if of unloading that constitutes with bolt, nut profile shape of cross section is a dodecagon simultaneously, provide screw strength with deficiency so that anti-unload retaining spare distortion or broken, the corner angle of nut will be out of shape instruments such as causing spanner and skid and can't nut be dismantled when screwing strength greater than certain value, have further improved the anti-effect of unloading of anti-assembling nut.
Description of drawings
Fig. 1 is the utility model example structure figure.
Fig. 2 is the utility model example structure exploded view.
Embodiment
As Fig. 1, shown in 2, this practical specific embodiment is a kind of anti-assembling nut, comprise nut 1 and the anti-inloading part that constitutes by steel ball 3, radial equipartition has three straight troughs 2 in the inwall upper edge of nut 1 screw, straight trough 2 for vertically offer and along hand of spiral from shallow to deep the cross section be arc, vertical two ends of straight trough 2 are not for running through, steel ball 3 is arranged in the straight trough 2, steel ball 3 rolls with straight trough 2 fornix positions and cooperates, with straight trough 2 tip snap-fit, in order to prevent that steel ball 3 from dropping out in nut 1 screw, in nut 1 screw, be equipped with the stopper 4 of a cylinder lid shape, the external diameter of stopper 4 equates with the internal diameter of nut 1, is symmetrically arranged with three sheet shape lugs 41 on the circumferential outer surface of stopper 4 bottoms, and nut 1 profile shape of cross section is a dodecagon simultaneously.
Anti-inloading part in the foregoing description is a steel ball 3, and anti-certainly inloading part also can be the pin of straight pin or other shape.
Claims (2)
1. anti-assembling nut, comprise nut (1), on the inwall of nut (1) screw, vertically offer along hand of spiral from shallow to deep the cross section be the straight trough (2) of arc, and vertical two ends of straight trough (2) are not for running through, in straight trough (2), be provided with steel ball (3), steel ball (3) rolls with straight trough (2) fornix position and cooperates, with straight trough (2) tip snap-fit, in the nut screw, be provided with a stopper (4), it is characterized in that: the inwall upper edge radial equipartition at nut (1) screw has three straight troughs (2), is symmetrically arranged with three sheet shape lugs (41) on the circumferential outer surface of stopper (4) bottom.
2. anti-assembling nut according to claim 1 is characterized in that: described nut (1) profile shape of cross section is a dodecagon.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200399816U CN201031852Y (en) | 2007-06-06 | 2007-06-06 | Releasing-resistant nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200399816U CN201031852Y (en) | 2007-06-06 | 2007-06-06 | Releasing-resistant nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201031852Y true CN201031852Y (en) | 2008-03-05 |
Family
ID=39163744
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200399816U Expired - Fee Related CN201031852Y (en) | 2007-06-06 | 2007-06-06 | Releasing-resistant nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201031852Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705337A (en) * | 2012-06-17 | 2012-10-03 | 无锡市优耐特石化装备有限公司 | Knurled screw convenient to match with wrench |
| CN104963977A (en) * | 2015-07-01 | 2015-10-07 | 于浩 | Sleeving type locknut |
-
2007
- 2007-06-06 CN CNU2007200399816U patent/CN201031852Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705337A (en) * | 2012-06-17 | 2012-10-03 | 无锡市优耐特石化装备有限公司 | Knurled screw convenient to match with wrench |
| CN104963977A (en) * | 2015-07-01 | 2015-10-07 | 于浩 | Sleeving type locknut |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: LIN XIONGWU Free format text: FORMER OWNER: WANG ZENGQUAN Effective date: 20090807 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090807 Address after: Deep river road Zhejiang Yongjia Oubei town No. 61, zip code: 325000 Patentee after: Lin Xiongwu Address before: Cangnan province Zhejiang County town of East Riverside money road 30, zip code: 325000 Patentee before: Wang Zengquan |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080305 Termination date: 20140606 |