CN215762733U - Locknut with double locking mechanism - Google Patents
Locknut with double locking mechanism Download PDFInfo
- Publication number
- CN215762733U CN215762733U CN202121410093.7U CN202121410093U CN215762733U CN 215762733 U CN215762733 U CN 215762733U CN 202121410093 U CN202121410093 U CN 202121410093U CN 215762733 U CN215762733 U CN 215762733U
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- nut
- locknut
- screw rod
- ball head
- locking mechanism
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- 230000007246 mechanism Effects 0.000 title claims abstract description 14
- 230000002093 peripheral effect Effects 0.000 claims abstract description 4
- 230000000694 effects Effects 0.000 description 5
- 230000006872 improvement Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
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Abstract
The utility model provides a locknut with a double locking mechanism, which comprises a bolt, a first nut and a second nut, wherein one end of the bolt is provided with a nut, the first nut and the second nut are both in threaded connection with the bolt, at least two buckling pieces for buckling and fastening the two nuts are arranged between the first nut and the second nut, one end of each buckling piece is hinged with an ear plate on the outer peripheral side of the second nut, the other end of each buckling piece is provided with a ball head, a first boss is integrally formed on the periphery of the first nut, a clamping groove corresponding to the position of the ball head and used for buckling the ball head is arranged at the edge of the first boss, the buckling pieces are distributed annularly at equal intervals, an inclined plane and a hemispherical plane which are sequentially connected are arranged in the groove bottom from outside to inside, and an upward convex fillet is arranged at the joint of the inclined plane and the hemispherical plane, one end of the buckling piece is in a hook shape, and the ball head is located at the end part of the hook.
Description
Technical Field
The utility model relates to a nut, in particular to a locknut with a double-locking mechanism.
Background
Bolts and nuts are widely used in various fields as a common fastener. The nut may loosen over time due to vibration or movement of the fastened component. Although the existing nut has self-locking property when in use, under the action of external factors such as vibration, impact, variable load and thermal stress, the nut is easily loosened and even falls off when being connected with matched parts, so that the connection between the parts is directly failed, the fastening strength is reduced and even lost, and further the damage of parts is caused, even the failure of the whole equipment is caused and personal safety accidents are caused.
The nut is prevented not hard up with the mode of two nut fastenings in the engineering usually, but two nuts are just the thickening of single nut, can not really play locking effect, and fixed effect is not good.
SUMMERY OF THE UTILITY MODEL
Therefore, in view of the above problems, the present invention provides a locknut with a dual locking mechanism.
In order to achieve the technical problem, the anti-loose nut with the double locking mechanism comprises a bolt, a first nut and a second nut, wherein a nut is arranged at one end of the bolt, the first nut and the second nut are both in threaded connection with the bolt, at least two buckling pieces used for buckling and fastening the two nuts are arranged between the first nut and the second nut, one end of each buckling piece is hinged with an ear plate on the outer peripheral side of the second nut, a ball head is arranged at the other end of each buckling piece, a first boss is integrally formed on the periphery of the first nut, and a clamping groove corresponding to the position of the ball head and used for buckling the ball head is arranged at the edge of the first boss.
The further improvement is that: the buckling pieces are distributed annularly at equal intervals.
The further improvement is that: the groove bottom of the clamping groove is provided with an inclined plane and a hemispherical surface which are sequentially connected from outside to inside, and a connecting part of the inclined plane and the hemispherical surface is provided with an upward convex round angle.
The further improvement is that: one end of the buckling piece is in a hook shape, and the ball head is located at the end part of the hook.
The further improvement is that: the top of the second nut is provided with a second boss, the bottom of the first nut is provided with a tensioning hole, and the outer wall of the second boss is in interference fit with the inner hole wall of the tensioning hole.
The further improvement is that: the bolt comprises a first screw rod connected with a nut and a second screw rod coaxially arranged at the end part of the first screw rod, the spiral direction of the external threads of the first screw rod and the second screw rod is opposite, the first nut is in threaded connection with the first screw rod, and the second nut is in threaded connection with the second screw rod.
By adopting the technical scheme, the utility model has the beneficial effects that:
the utility model discloses simple structure, convenient to use through be provided with the buckling piece between two nuts, the one end of buckling piece is articulated with one of them nut, and the other end is provided with the bulb, and is provided with the draw-in groove that matches with the bulb on another nut to realize the lock fastening between two nuts, realize the double-locking of nut.
Drawings
Fig. 1 is a schematic structural diagram of a locknut with a double locking mechanism according to an embodiment of the present invention.
Fig. 2 is a cross-sectional view of a locknut having a double locking mechanism according to an embodiment of the present invention.
Fig. 3 is a schematic structural diagram of a second nut in the embodiment of the utility model.
Fig. 4 is a cross-sectional view of a first nut in an embodiment of the utility model.
Fig. 5 is an enlarged view of a portion a of fig. 4.
In the figure: the nut 1, the bolt 2, the first screw 21, the second screw 22, the first nut 3, the first boss 31, the clamping groove 32, the hemispherical surface 321, the fillet 322, the inclined plane 323, the tensioning hole 33, the second nut 4, the annular edge 41, the lug plate 42, the second boss 43, the fastener 5 and the ball head 51.
Detailed Description
The utility model will now be further described with reference to the accompanying drawings and specific embodiments.
The first embodiment is as follows:
referring to fig. 1, the anti-loose nut with a double locking mechanism disclosed in the embodiment of the present invention comprises a bolt 2, a first nut 3 and a second nut 4, wherein one end of the bolt 2 is provided with a nut 1, and the first nut 3 and the second nut 4 are both in threaded connection with the bolt 2, so that the first nut 3 located at the inner side is locked by the second nut 4 located at the outer side, thereby preventing the first nut 3 from loosening and ensuring the fastening strength.
Referring to fig. 2 and 3, for the purpose of double locking, a fastener 5 is disposed between the first nut 3 and the second nut 4, one end of the fastener 5 is connected to the second nut 4, and the other end of the fastener 5 is connected to the first nut 3 in a fastening manner, so that the two nuts are further fastened and fastened, the number of the fasteners 5 is two, three or four, in this embodiment, the fasteners 5 are preferably four, and the four upper fasteners 5 are circumferentially distributed at equal intervals.
Specifically, the peripheral side of the second nut 4 is provided with a ring edge 41, the ring edge 41 is provided with ear plates 42, the number of which is the same as that of the fasteners 5, one end of each fastener 5 is hinged to the ear plate 42, the other end of each fastener 5 is in a hook shape, and the hook end of each fastener 5 is provided with a ball head 51.
Referring to fig. 4 and 5, a first boss 31 is integrally formed on the periphery of the first nut 3, a slot 32 corresponding to the ball 51 is formed at the edge of the first boss 31, and the ball 51 is buckled in the slot 32, so that the first nut 3 and the second nut 4 are buckled and fastened to achieve the double locking effect.
The groove bottom of the clamping groove 32 is provided with an inclined plane 323 and a hemispherical surface 321 which are sequentially connected from outside to inside, the joint of the inclined plane 323 and the hemispherical surface 321 is provided with an upward convex round angle 322, in the clamping process of the ball head 51, the inclined plane 323 plays a role in guiding, the ball head 51 is matched with the self deformation, and finally the ball head 51 is buckled and pressed in the groove of the hemispherical surface 321 so as to be convenient for the ball head 51 to be clamped in.
In this embodiment, the top of the second nut 4 (i.e. the side close to the screwing end thereof) is provided with a second boss 43, the bottom of the first nut 3 is provided with a tensioning hole 33, when the second nut 4 is screwed on the bolt 2, the second boss 43 at the top thereof is inserted into the tensioning hole 33 of the first nut 3, and the outer wall of the second boss 43 is in interference fit with the inner hole wall of the tensioning hole 33, so as to further improve the locking strength of the two.
Further, the bolt 2 includes a first screw 21 connected with the nut 1 and a second screw 22 coaxially disposed at an end of the first screw 21, a rod diameter of the first screw 21 is greater than a rod diameter of the second screw 22, so as to achieve sleeving of the two bolts 2, in addition, external threads of the first screw 21 and the second screw 22 are opposite in spiral direction, the first nut 3 is in threaded connection with the first screw 21, and the second nut 4 is in threaded connection with the second screw 22. Through this setting for two reverse screw ins of nut improve just person's antidetonation effect, when meetting with same frequency vibrations promptly, in two nuts, one receives the derotation power influence, and another receives the normal rotation power influence, and not derotation simultaneously, and then avoid two nuts to appear not hard up simultaneously, further improve the fastening effect.
Modifications and variations of the present invention are within the scope of the claims and are not limited by the disclosure of the embodiments.
Claims (6)
1. Locknut with double-locking mechanical system, including bolt, first nut and second nut, the one end of bolt has the nut, first nut and second nut all with bolt threaded connection, its characterized in that: the nut comprises a first nut and a second nut, and is characterized in that at least two fasteners used for fastening the two nuts are arranged between the first nut and the second nut, one end of each fastener is hinged with an ear plate on the outer peripheral side of the second nut, the other end of each fastener is provided with a ball head, a first boss is integrally formed on the periphery of the first nut, and a clamping groove corresponding to the position of the ball head and used for buckling the ball head is formed in the edge of the first boss.
2. The locknut with the double-locking mechanism according to claim 1, wherein: the buckling pieces are distributed annularly at equal intervals.
3. The locknut with the double-locking mechanism according to claim 1, wherein: the groove bottom of the clamping groove is provided with an inclined plane and a hemispherical surface which are sequentially connected from outside to inside, and a connecting part of the inclined plane and the hemispherical surface is provided with an upward convex round angle.
4. The locknut with the double-locking mechanism according to claim 1, wherein: one end of the buckling piece is in a hook shape, and the ball head is located at the end part of the hook.
5. The locknut with the double locking mechanism according to any one of claims 1 or 4, wherein: the top of the second nut is provided with a second boss, the bottom of the first nut is provided with a tensioning hole, and the outer wall of the second boss is in interference fit with the inner hole wall of the tensioning hole.
6. The locknut with the double-locking mechanism according to claim 5, wherein: the bolt comprises a first screw rod connected with a nut and a second screw rod coaxially arranged at the end part of the first screw rod, the spiral direction of the external threads of the first screw rod and the second screw rod is opposite, the first nut is in threaded connection with the first screw rod, and the second nut is in threaded connection with the second screw rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121410093.7U CN215762733U (en) | 2021-06-24 | 2021-06-24 | Locknut with double locking mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121410093.7U CN215762733U (en) | 2021-06-24 | 2021-06-24 | Locknut with double locking mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215762733U true CN215762733U (en) | 2022-02-08 |
Family
ID=80102006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121410093.7U Expired - Fee Related CN215762733U (en) | 2021-06-24 | 2021-06-24 | Locknut with double locking mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215762733U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114893489A (en) * | 2022-05-24 | 2022-08-12 | 苏州市建磊金属制品有限公司 | Improved locking nut |
-
2021
- 2021-06-24 CN CN202121410093.7U patent/CN215762733U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114893489A (en) * | 2022-05-24 | 2022-08-12 | 苏州市建磊金属制品有限公司 | Improved locking nut |
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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: 20220208 |