CN206159243U - Locking joint of two nuts is vice - Google Patents
Locking joint of two nuts is vice Download PDFInfo
- Publication number
- CN206159243U CN206159243U CN201621054849.8U CN201621054849U CN206159243U CN 206159243 U CN206159243 U CN 206159243U CN 201621054849 U CN201621054849 U CN 201621054849U CN 206159243 U CN206159243 U CN 206159243U
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- Prior art keywords
- nut
- bolt
- auxiliary connection
- locking auxiliary
- double
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Abstract
The utility model discloses a locking joint of two nuts is vice, including bolt, first nut and second nut, wherein, the screw cusp of bolt is provided with the inclined plane, correspondingly, the thread root of first nut and second nut is provided with the inclined plane, during the installation twist earlier first nut on the bolt, and then wrong second nut, wherein the second nut because extruded up end round screw thread produces micro -strain to provide the anticreep function. The utility model provides a locking joint of two nuts is vice can improve anti -loosening performance and anticreep performance, but also can simplify processing technology.
Description
Technical field
The utility model is related to a kind of connector, more particularly to a kind of locking auxiliary connection of double nut.
Background technology
With China Express Railway Line for Passenger Transportation open successively and each city track traffic all-round construction, peace
It is for the national games to seek the top priority for having become railway operation.Metal contact net is to provide the guarantee of vehicle electrical power, once metal contact net
Failure, will cause vehicle in use to run out of steam, and gently then stop transport, heavy then traffic accident occurs.And the failure of metal contact net,
Very maximum probability occurs on locking part failure, therefore the loosening of securing member becomes problem demanding prompt solution.
The operation principle of nut is to carry out self-locking using the frictional force between nuts and bolt.Double nut makes to be produced in screw thread pair
The raw additonal pressure not changed with external applied load, and moment of friction is always there are, can prevent nut from rotating relative to bolt.
The locking principle of double nut：After tightening, the axial force produced between nut makes nut pitch and bolt tooth to two nuts
Between frictional force increase and prevent nut from releasing automatically.The anti-loosing effect quality of locking connection depends primarily on nut and bolt
The Interaction Force of engagement screw thread.Improving the mode of the Interaction Force of engagement screw thread has many kinds, such as applying must firm spiral shell
Female helicitic texture improvement, the nylon of nylon nut increases rough, surface treatment of screw thread etc..
But, the anti-loosing effect that the locking auxiliary connection of existing double nut is universal is not good, and processed complex, it would therefore be highly desirable to change
Enter.
Utility model content
The purpose of this utility model is for the problems referred to above, there is provided a kind of locking auxiliary connection of double nut, it is possible to increase anti-
Loose performance and anticreep performance, but also being capable of simplified processing process.
To solve above-mentioned technical problem, the locking auxiliary connection of the double nut that the utility model is provided, including bolt (1), the
One nut (2) and the second nut (3), wherein, the screw thread cusp of the bolt (1) is provided with inclined-plane；Correspondingly, first spiral shell
The Bottom of Thread of female (2) and the second nut (3) is provided with inclined-plane；During installation, the first nut (2) is first twisted on the bolt (1),
Then again twist the second nut (3), wherein the second nut (3) due to extrude upper surface one circle screw thread produce micro-strain, with
Anti-drop function is provided.
Further, the first nut (2) is plain nut；Second nut (3) flattens nut for multiple spot.
Further, the angle of inclination of the inclined-plane relative level of bolt (1) the screw thread cusp is 30 °.
Further, the angle of inclination of the inclined-plane relative level of the first nut (2) Bottom of Thread is 30 °.
Further, the angle of inclination of the inclined-plane relative level of the second nut (3) Bottom of Thread is 30 °.
Further, the angle of inclination of the inclined-plane relative level of bolt (1) the screw thread cusp and the first nut
(2) it is identical with the angle of inclination of the inclined-plane relative level of the second nut (3) Bottom of Thread.
Further, the pitch of the bolt (1) is varying pitch, and excursion is P '=P ± δ, 0≤δ≤0.1.
Further, the upper surface of second nut (3) is sphere, and with multiple flattening points.
Further, the point quantity of flattening is more than or equal to 1.
Further, the point quantity of flattening is 3.
Prior art is compared to, the locking auxiliary connection of the double nut that the utility model is provided has broken traditional locking
The design of auxiliary connection, bolt screw thread cusp and correspondingly the Bottom of Thread of nut all arranges inclined-plane, the screw thread of inclined design
Structure has excellent anti-loosening property；The varying pitch design of bolt, can increase anti-loosening property；Double nut design can improve anti-
Loose performance；Additionally, the cooperation that multiple spot flattens nut can further increase anti-drop function.Therefore, what the utility model was provided is double
The locking auxiliary connection of nut, can not only improve anti-loosening property and anticreep performance, but also being capable of simplified processing process.
Description of the drawings
In order to be illustrated more clearly that the technical solution of the utility model, below by the accompanying drawing to be used needed for embodiment
It is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present utility model, for ability
For the those of ordinary skill of domain, on the premise of not paying creative work, can be attached to obtain others according to these accompanying drawings
Figure.
Fig. 1 is the structural representation of the locking auxiliary connection of the utility model double nut；
Fig. 2 is the generalized section of the locking auxiliary connection of the utility model double nut；
Fig. 3 is the inclined-plane local detail schematic diagram of the locking auxiliary connection of the double nut shown in Fig. 2；
Fig. 4 is that the multiple spot of the locking auxiliary connection of the utility model double nut flattens nut detailed schematic.
Wherein：
1. bolt；
2. plain nut；
3. multiple spot flattens nut.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe.
As shown in figure 1, a kind of locking auxiliary connection of double nut, including bolt 1, the first nut 2 and the second nut 3.This reality
With in new embodiment, the first nut 2 is plain nut；Second nut 3 is that multiple spot flattens nut.
As shown in figs. 2 to 4, prior art is compared to, the utility model embodiment is carried out to the helicitic texture of bolt 1
Improve, wherein：
The bolt 1 is provided with inclined-plane in screw thread cusp, and the inclined-plane relative level of the screw thread cusp of the bolt 1 is inclined
Rake angle is preferably set to 30 °.It is, of course, also possible to there is the setting at other angles of inclination, for example, preferably set at angle of inclination
It is set to 20 °～60 ° of a certain angle, here is simultaneously not specifically limited.
The pitch of the bolt 1 is varying pitch, and excursion is P '=P ± δ, 0≤δ≤0.1.
As shown in figs. 2 to 4, prior art is compared to, the utility model embodiment is also carried out to the structure of plain nut 2
Improve, wherein：
The tooth bottom of the internal thread of the plain nut 2 is correspondingly provided with inclined-plane, the Bottom of Thread of the plain nut 2
The angle of inclination phase of the relative level on the inclined-plane of the screw thread cusp of the angle of inclination of the relative level on inclined-plane and the bolt 1
Together, it is preferable to set for 30 °.It is, of course, also possible to there is the setting at other angles of inclination, for example, it is preferably set at angle of inclination
20 °～60 ° of a certain angle, here is simultaneously not specifically limited.
As shown in figs. 2 to 4, prior art is compared to, the utility model embodiment flattens the structure of nut 3 to multiple spot
It is improved, wherein：
The multiple spot flattens the tooth bottom of the internal thread of nut 3 and is correspondingly provided with inclined-plane, and the multiple spot flattens the spiral shell of nut 3
The relative level on the inclined-plane of the angle of inclination of the relative level on the inclined-plane at line tooth bottom and the screw thread cusp of the bolt 1 is inclined
Rake angle is identical, it is preferable to set for 30 °.It is, of course, also possible to have the setting at other angles of inclination, such as it is preferred at angle of inclination
Ground is set as 20 °～60 ° of a certain angle, and here is simultaneously not specifically limited.
It is sphere that the multiple spot flattens the upper surface of nut 3, and with multiple flattening points, wherein flatten point quantity more than etc.
In 1, it is preferable that the optimal number for flattening point is 3.
In the utility model embodiment, erection sequence is the first stubborn plain nut 2 on the bolt 1, then in the spiral shell
Multiple spot is twisted on bolt 1 and flattens nut 2, wherein multiple spot flattens nut 2 due to the circle screw thread of upper surface one for extruding so as to produce small change
Shape, so as to provide anti-drop function.
The locking auxiliary connection of the double nut that the utility model is provided, has broken the design of traditional locking auxiliary connection, in spiral shell
The screw thread cusp of bolt and the correspondingly Bottom of Thread of nut all arrange inclined-plane, and the helicitic texture of inclined design has excellent locking
Performance；The varying pitch design of bolt, can increase anti-loosening property；Double nut design can improve anti-loosening property；Additionally, pressing more
The cooperation of jam nut can further increase anti-drop function.Therefore, the locking auxiliary connection of the double nut that the utility model is provided, no
Anti-loosening property and anticreep performance can be only improved, but also being capable of simplified processing process.
The above is preferred embodiment of the present utility model, it is noted that for the ordinary skill of the art
For personnel, on the premise of without departing from the utility model principle, some improvements and modifications can also be made, these improve and moisten
Decorations are also considered as protection domain of the present utility model.
Claims (9)
1. the locking auxiliary connection of a kind of double nut, it is characterised in that：Including bolt (1), the first nut (2) and the second nut (3),
Wherein,
The screw thread cusp of the bolt (1) is provided with inclined-plane；
Correspondingly, the Bottom of Thread of first nut (2) and the second nut (3) is provided with inclined-plane；
During installation, the first nut (2) is first twisted on the bolt (1), the second nut (3) is then twisted again, wherein the second nut (3)
Due to extrude upper surface one circle screw thread produce micro-strain, to provide anti-drop function.
2. the locking auxiliary connection of double nut according to claim 1, it is characterised in that first nut (2) is routine
Nut；
Second nut (3) flattens nut for multiple spot.
3. the locking auxiliary connection of double nut according to claim 1, it is characterised in that bolt (1) the screw thread cusp
The angle of inclination of inclined-plane relative level is 30 °.
4. the locking auxiliary connection of double nut according to claim 1, it is characterised in that the first nut (2) ridge
The angle of inclination of the inclined-plane relative level at bottom is 30 °.
5. the locking auxiliary connection of double nut according to claim 1, it is characterised in that the second nut (3) ridge
The angle of inclination of the inclined-plane relative level at bottom is 30 °.
6. the locking auxiliary connection of double nut according to claim 1, it is characterised in that bolt (1) the screw thread cusp
The angle of inclination of inclined-plane relative level and the inclined-plane relative level of the first nut (2) and the second nut (3) Bottom of Thread
Angle of inclination is identical.
7. the locking auxiliary connection of double nut according to claim 1, it is characterised in that the pitch of the bolt (1) is to become
Pitch, excursion is P '=P ± δ, 0≤δ≤0.1.
8. the locking auxiliary connection of double nut according to claim 1, it is characterised in that the upper end of second nut (3)
Face is sphere, and with multiple flattening points.
9. the locking auxiliary connection of double nut according to claim 8, it is characterised in that the flattening point quantity is 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621054849.8U CN206159243U (en) | 2016-09-13 | 2016-09-13 | Locking joint of two nuts is vice |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621054849.8U CN206159243U (en) | 2016-09-13 | 2016-09-13 | Locking joint of two nuts is vice |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206159243U true CN206159243U (en) | 2017-05-10 |
Family
ID=58651296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621054849.8U Active CN206159243U (en) | 2016-09-13 | 2016-09-13 | Locking joint of two nuts is vice |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206159243U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869518A (en) * | 2018-09-06 | 2018-11-23 | 王平安 | The general combination stop nut of one kind and its locking installation method |
-
2016
- 2016-09-13 CN CN201621054849.8U patent/CN206159243U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869518A (en) * | 2018-09-06 | 2018-11-23 | 王平安 | The general combination stop nut of one kind and its locking installation method |
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