CN210118335U - Anti-loose nut - Google Patents
Anti-loose nut Download PDFInfo
- Publication number
- CN210118335U CN210118335U CN201920932134.5U CN201920932134U CN210118335U CN 210118335 U CN210118335 U CN 210118335U CN 201920932134 U CN201920932134 U CN 201920932134U CN 210118335 U CN210118335 U CN 210118335U
- Authority
- CN
- China
- Prior art keywords
- nut
- counter bore
- lower nut
- hole
- upper nut
- 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
- 125000006850 spacer group Chemical group 0.000 claims abstract description 6
- 230000000694 effects Effects 0.000 abstract description 9
- 230000009977 dual effect Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
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- Forms Removed On Construction Sites Or Auxiliary Members Thereof (AREA)
Abstract
The utility model discloses a locknut, its characterized in that: comprises an upper nut and a lower nut, wherein the upper nut and the lower nut are provided with outer hexagons with the same shape and size, the center of the upper nut is provided with an upper nut hole, the center of the lower nut is provided with a lower nut hole, the upper nut hole and the lower nut hole are provided with the same thread size, the bottom end surface of the upper nut is provided with a circular boss, the circular boss and the upper nut hole are eccentrically arranged, the eccentric distance is A, the top end surface of the lower nut is provided with a counter bore, the counter bore and the lower nut hole are eccentrically arranged, the eccentric distance is A, the circular boss is rotatably arranged in the counter bore, the bore diameter of the counter bore is matched with the outer diameter of the circular, when the outer hexagons of the upper nut and the lower nut are arranged at the same circumferential angle and the upper nut and the lower nut are concentric, the upper mark and the lower mark are just aligned up and down, and a plastic spacer ring is arranged in the counter bore, and the sum of the heights of the plastic spacer ring and the circular boss is greater than the depth of the counter bore. The utility model discloses have reliably set up locking effect, convenient to use.
Description
Technical Field
The utility model relates to a fastener product, concretely relates to locknut.
Background
When fastening and connecting are carried out by utilizing a bolt and nut structure, the fastening and looseness prevention of the nut need to be considered. At present, a plurality of methods for fastening and preventing loosening are available, such as utilizing a self-locking structure of a nut or destroying the end thread of the nut, but the fastening and preventing loosening effect is not ideal for the nut with the thread aperture larger than 16mm and more. And the mode of double nuts tightening is adopted, so that the looseness is easy to occur in the working occasions with frequent vibration.
Disclosure of Invention
In view of the problems existing in the prior art, the technical problem to be solved by the present invention is to provide a locknut with reliable fastening and anti-loosening effects and convenient use.
The utility model discloses a through following technical scheme implementation:
locknut, its characterized in that: comprises an upper nut and a lower nut, wherein the upper nut and the lower nut are provided with outer hexagons with the same shape and size, the center of the upper nut is provided with an upper nut hole, the center of the lower nut is provided with a lower nut hole, the upper nut hole and the lower nut hole are provided with the same thread size, the bottom end surface of the upper nut is provided with a circular boss, the circular boss and the upper nut hole are eccentrically arranged, the eccentric distance is A, the top end surface of the lower nut is provided with a counter bore, the counter bore and the lower nut hole are eccentrically arranged, the eccentric distance is A, the circular boss is rotatably arranged in the counter bore, the bore diameter of the counter bore is matched with the outer diameter of the circular, when the outer hexagons of the upper nut and the lower nut are arranged at the same circumferential angle and the upper nut and the lower nut are concentric, the upper mark and the lower mark are just aligned up and down, and a plastic spacer ring is arranged in the counter bore, and the sum of the heights of the plastic spacer ring and the circular boss is greater than the depth of the counter bore.
Above-mentioned technical scheme's locknut, convenient to use, during the use, at first with upper and lower mark alignment state with the upper and lower nut simultaneously revolve connect the bolt on, screw up simultaneously when upper and lower nut and target in place, screw up the upper nut again alone, the upper nut at this moment has not only played the locking effect of two nuts and tight, and because begin to produce concentric deviation between the upper nut hole of upper nut and the lower nut hole of lower nut, still play the locking effect of destroying nut tip screw in other words, then under the combined action of dual locking effect, make locknut's the locking effect of setting up better, can reach the purpose of never loosening basically. In the technical scheme, the plastic space ring has the effect that when the upper nut and the lower nut are in a tight state, the lower end face of the circular boss of the upper nut is in contact with the plastic space ring, so that the friction coefficient is small, the upper nut can be easily rotated relative to the lower nut, concentric deviation as large as possible exists between the upper nut hole and the lower nut hole of the upper nut and the lower nut, and a better fastening and anti-loosening effect is achieved.
Preferably, the bottom end face of the lower nut is provided with a conical table surface. The design of the conical table top enables the fastening end face to be smaller and the fastening force to be more concentrated.
Drawings
The utility model discloses there is following figure:
figure 1 is a split structure view of the utility model,
figure 2 is an axial cross-sectional view of the present invention,
figure 3 is a bottom view of the upper nut of figure 1,
fig. 4 is a top view of the lower nut of fig. 1.
Detailed Description
As shown in the figure, the anti-loose nut of the utility model comprises an upper nut 1 and a lower nut 5, the upper nut and the lower nut have outer hexagons with the same shape and size, the center of the upper nut 1 is provided with an upper nut hole 7, the center of the lower nut 5 is provided with a lower nut hole 8, the upper nut hole and the lower nut hole have the same thread size, the bottom end surface of the upper nut 1 is provided with a circular boss 3, the circular boss 3 and the upper nut hole 7 are eccentrically arranged, the eccentric distance is A, the top end surface of the lower nut 5 is provided with a counter bore 9, the counter bore 9 and the lower nut hole 8 are eccentrically arranged, the eccentric distance is A, the circular boss 3 can be rotatably arranged in the counter bore 9, the aperture of the counter bore 9 is slightly larger than the outer diameter of the circular boss 3, the upper nut 1 is provided with a dot-shaped upper mark 2 on the front side surface of the outer hexagons of the upper nut 1, the lower nut 5 is, the upper mark 2 and the lower mark 6 are aligned up and down, the bottom of the counter bore 9 is provided with a plastic space ring 4, the sum of the heights of the plastic space ring 4 and the circular boss 3 is greater than the depth of the counter bore 9, and the bottom end face of the lower nut 5 is provided with a conical table surface 10.
Claims (2)
1. Locknut, its characterized in that: comprises an upper nut and a lower nut, wherein the upper nut and the lower nut are provided with outer hexagons with the same shape and size, the center of the upper nut is provided with an upper nut hole, the center of the lower nut is provided with a lower nut hole, the upper nut hole and the lower nut hole are provided with the same thread size, the bottom end surface of the upper nut is provided with a circular boss, the circular boss and the upper nut hole are eccentrically arranged, the eccentric distance is A, the top end surface of the lower nut is provided with a counter bore, the counter bore and the lower nut hole are eccentrically arranged, the eccentric distance is A, the circular boss is rotatably arranged in the counter bore, the bore diameter of the counter bore is matched with the outer diameter of the circular, when the outer hexagons of the upper nut and the lower nut are arranged at the same circumferential angle and the upper nut and the lower nut are concentric, the upper mark and the lower mark are just aligned up and down, and a plastic spacer ring is arranged in the counter bore, and the sum of the heights of the plastic spacer ring and the circular boss is greater than the depth of the counter bore.
2. The locknut of claim 1 wherein: the bottom end face of the lower nut is provided with a conical table top.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920932134.5U CN210118335U (en) | 2019-06-20 | 2019-06-20 | Anti-loose nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920932134.5U CN210118335U (en) | 2019-06-20 | 2019-06-20 | Anti-loose nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210118335U true CN210118335U (en) | 2020-02-28 |
Family
ID=69615980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920932134.5U Expired - Fee Related CN210118335U (en) | 2019-06-20 | 2019-06-20 | Anti-loose nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210118335U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112112876A (en) * | 2020-10-09 | 2020-12-22 | 浙江赛日机电科技有限公司 | Vibration locknut assembly and machining method thereof |
-
2019
- 2019-06-20 CN CN201920932134.5U patent/CN210118335U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112112876A (en) * | 2020-10-09 | 2020-12-22 | 浙江赛日机电科技有限公司 | Vibration locknut assembly and machining method thereof |
| CN112112876B (en) * | 2020-10-09 | 2022-05-03 | 浙江腾优科技有限公司 | Vibration locknut assembly and machining method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200228 |