CN206458702U - Eccentric O-shaped self-locking nut - Google Patents
Eccentric O-shaped self-locking nut Download PDFInfo
- Publication number
- CN206458702U CN206458702U CN201720157708.7U CN201720157708U CN206458702U CN 206458702 U CN206458702 U CN 206458702U CN 201720157708 U CN201720157708 U CN 201720157708U CN 206458702 U CN206458702 U CN 206458702U
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- Prior art keywords
- eccentric
- thread hole
- self
- axis
- locking
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Abstract
A kind of eccentric O-shaped self-locking nut, including the nut body with main thread hole and it is supporting have self-locking thread hole from lock tube, the upper surface of the nut main body has the eccentric boss upwardly extended, the axis of the axis of the eccentric boss and the main thread hole has an eccentric throw, eccentric boss is run through in main thread hole, and the lower surface from lock tube has the bias that can be set on eccentric boss only hole；Under the original state being set in from lock tube on nut body, the axis of the axis in the main thread hole and the self-locking thread hole coincides；Under the self-locking state for deflecting an angle from lock tube relative eccentric boss, the axis of the axis in the main thread hole and the self-locking thread hole shifts, and forms an offset distance；It is characterized in that：Multiple axially arranged grooves are provided with the side wall of the eccentric boss, the open top of the groove runs through the top surface of eccentric boss, and the bottom of the groove is in O-shaped；This kind of eccentric self-locking nut anti-looseness performance is more preferably, service life is longer and performance is stable.
Description
Technical field
The utility model is related to a kind of threaded connection fastener, more particularly to a kind of eccentric O-shaped self-locking nut.
Background technology
The thread connection of usual plant equipment is mainly fixed using by bolt, nut, but this kind of fixed form is in vibrations
Easily loosened with the environment of varying load, therefore employ a variety of loosing Prevention Technologies to reinforce, conventional mode is rubbed for increase at present
Wipe power locking locking with machinery；Increase frictional force is locking mainly to be increased spring nut, double nut, inlays nylon washer, smearing
Bonding Ji, concave cone are locking etc., performance and its unstable, and nut can loosen in certain interval, and be inconvenient to weigh with dismantling
The multiple low shortcoming of utilization rate, machinery is locking such as increase stop washer, and steel wire wears tight etc., degraded performance and is limited by mounting condition
System.
In order to obtain combination property more preferably thread connection, such as Authorization Notice No. is practical new for CN203532477U China
Type patent《Centering type self locking anti-loose nut》And the Chinese utility model patent that Authorization Notice No. is CN203809476U《It is eccentric
Self locking anti-loose nut》Disclose a kind of stop nut, including the nut body with main thread hole, with self-locking thread hole from
Lock tube, the upper surface of nut main body has the eccentric boss upwardly extended, the axis of the eccentric boss and the main thread hole
Axis there is eccentric distance, there is the bias being set on eccentric boss only hole, the bias from the lower surface of lock tube
Only the axis in hole is overlapped with the axis of eccentric boss, and bias, which stops having between the internal perisporium in hole and eccentric boss periphery wall, rubs
Power is wiped, is set in self-locking under the original state of eccentric boss, the axis in self-locking thread hole and the axis in main thread hole
Coincidence, while having gap between the upper surface of eccentric boss and eccentric only hole roof, is deflected from lock tube relative eccentric boss
In the state of one angle, the axis of the axis and main thread hole in the self-locking thread hole shifts, due to the skew
Presence cause firmly locked from lock tube and nut cylinder, strengthen anti-loosing effect.
But the further raising bias of field needs for the personal safety that concerned in modern electric, electric railway, automobile etc.
The anti-loosening property of self-locking nut, and need the eccentric self-locking nut long period to keep good anti-loosing effect, therefore existing bias
Self locking anti-loose nut also needs to be further improved.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of anti-loosening property for above-mentioned state of the art
More preferably, the eccentric O-shaped self-locking nut that service life is longer, performance is stable.
The utility model solve the technical scheme that is used of above-mentioned technical problem for：A kind of eccentric O-shaped self-locking nut, including
Nut body with main thread hole and it is supporting have self-locking thread hole from lock tube, the upper surface of the nut main body has
The axis in the eccentric boss upwardly extended, the axis of the eccentric boss and the main thread hole has an eccentric throw, main
Screwed hole runs through eccentric boss, and the lower surface from lock tube has the bias that can be set on eccentric boss only hole；From lock tube
It is set under the original state on nut body, the axis in the main thread hole is mutually overlapping with the axis in the self-locking thread hole
Close；From lock tube relative eccentric boss deflect an angle self-locking state under, the axis in the main thread hole with it is described from
The axis of lock screwed hole shifts, and forms an offset distance；It is characterized in that：It is provided with the side wall of the eccentric boss
Multiple axially arranged grooves, the open top of the groove runs through the top surface of eccentric boss, and the bottom of the groove is in O-shaped.
It is preferred that, the eccentric boss is the frustum of a cone, the eccentric bellmouth for stopping the eccentric boss matchings of Kong Weiyu, will be inclined
Cardiac prominence platform and eccentric hole of stopping are designed as taper, there is more preferable guide effect during assembling.
It is preferred that, the groove has four and is uniformly distributed along the circumference, and the groove being uniformly distributed along the circumference causes eccentric boss stress evenly,
It is less easy to crack.
Compared with prior art, the utility model has the advantage of：Axial groove is opened on the side wall of eccentric boss so that
There is the space of a deformation in eccentric boss, so when screwing in nut body locking assembling from lock tube, the side wall of eccentric boss
It can be extruded, so that allow eccentric boss more to hold connecting bolt tightly, and because the groove is in O-shaped so that trench bottom stress disperses, partially
Cardiac prominence platform is not easy to crack, increases the service life, and is more suitable for the locking assembling on locking assembling on the ground, such as railroad track,
Even if tightening eccentric boss energetically will not also ftracture, performance is stable.
Brief description of the drawings
Fig. 1 is the original state schematic diagram of the utility model embodiment；
Fig. 2 is the assembling schematic diagram of the self-locking state of the utility model embodiment；
Fig. 3 is Fig. 2 sectional view；
Fig. 4 is the top view of nut body in the utility model embodiment；
Fig. 5 is the sectional view in the utility model embodiment from lock tube.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing embodiment.
It is a preferred embodiment of the present utility model as shown in Fig. 1~5.
A kind of eccentric O-shaped self-locking nut, including the nut body 1 with main thread hole 11 and supporting there is self-locking thread
Hole 21 from lock tube 2, the upper surface of nut main body 1 has the eccentric boss 12 upwardly extended, the axis b of the eccentric boss 12
There is an eccentric distance e with the axis a in main thread hole 11, eccentric boss 12 is run through in main thread hole 11, from the lower surface of lock tube 2
Stop hole 22 with the bias that can be set on eccentric boss 12；As shown in Figure 1 being set in from lock tube 2 is first on nut body 1
Under beginning state, the axis c in main thread hole 11 coincides with the axis c in self-locking thread hole 21；As shown in Figure 3 from lock tube 2
Relative eccentric boss 12 is deflected under the self-locking state of an angle, in the axis a in main thread hole 11 and self-locking thread hole 21
Axis c shifts, and forms an offset distance d, and offset distance d is less than or equal to eccentric distance e.
Main improvement of the present utility model is：Multiple axially arranged grooves 13 are provided with the side wall of eccentric boss 12,
The open top of groove 13 runs through the top surface of eccentric boss 12, and the bottom of groove 13 is more than groove 13 in O-shaped and preferably O-shaped diameter
Width.Groove 13 in the present embodiment has four and is uniformly distributed along the circumference.
Eccentric boss 12 in the present embodiment is the frustum of a cone, and it is the bellmouth matched with eccentric boss 12 that bias, which stops hole 22,.
During using this kind of eccentric self-locking nut, in an initial condition, it is sheathed on from lock tube 2 and by interference or the side of bonding
Formula is fixed on nut body 1, and this fixed form is inclined from lock tube energy opposing nut main body 1 when strength is reversed from lock tube 2
Turn, now, the axis of the axis a of main thread hole 11, the axis c in self-locking thread hole 21 and connecting bolt (not shown)
On the same axis, at this moment nut main body 1 and connecting bolt just can be synchronously screwed in together from lock tube 2, because of eccentric boss 12
There is an eccentric distance e, when needing self-locking, only needing will be from the phase of lock tube 2 between axis b and the axis a in main thread hole 11
One angle is rotated along the direction of tightening nut main body 1 to nut main body, now from the axis in the self-locking thread hole 21 of lock tube 2
Line c and the axis a in main thread hole 11 shift (as shown in Figure 3), an offset distance D-shaped are produced into bias, in bias
In the presence of, from the self-locking thread hole 21 on lock tube 2, the external screw thread with respect to connecting bolt produces larger radial load in engagement place,
According to the principle of active force and reaction force, external screw thread of the main thread hole 11 with respect to connecting bolt of nut body 1 is in engagement place
Also produce larger radial reaction force, in the presence of two radial loads, make it is firmly locked with connecting bolt from lock tube 2, this
Plant self-lock force with the angle rotated from the opposing nut body 1 of lock tube 2 to increase and strengthen, self-lock force is bigger, and anti-loosing effect is better；
It need to only be rotated backward from lock tube 2 during unblock in addition, convenient disassembly is simultaneously reusable.
In addition the utility model also opens axial groove 13 on the side wall of eccentric boss 12 so that eccentric boss 12 has one
The space of individual deformation, so when screwing in the locking assembling of nut body 1 from lock tube 2, the side wall of eccentric boss 12 can be extruded, from
And allow eccentric boss 12 more to hold connecting bolt tightly, and because the groove is in O-shaped so that the bottom stress of groove 13 disperses, eccentric boss
12 is easy to crack, increases the service life, and is more suitable for the locking assembling on locking assembling on the ground, such as railroad track, even if
Tightening eccentric boss 12 energetically will not also ftracture, and performance is stable.
Claims (3)
1. a kind of eccentric O-shaped self-locking nut, including the nut body (1) with main thread hole (11) and supporting there is self-locking spiral shell
Pit (21) from lock tube (2), the upper surface of the nut body (1) has the eccentric boss (12) upwardly extended, the bias
The axis (b) of boss (12) and the axis (a) of the main thread hole (11) have an eccentric throw (e), main thread hole
(11) through eccentric boss (12), there is the bias that can be set on eccentric boss (12) to stop for the lower surface from lock tube (2)
Hole (22)；Be set in from lock tube (2) under the original state on nut body (1), the axis (a) of the main thread hole (11) with
The axis (c) of the self-locking thread hole (21) coincides；Angle is being deflected from lock tube (2) relative eccentric boss (12)
Under self-locking state, the axis (a) of the main thread hole (11) and the axis (c) of the self-locking thread hole (21) occur partially
Move, form an offset distance (d)；It is characterized in that：It is provided with the side wall of the eccentric boss (12) multiple axially arranged
Groove (13), the open top of the groove (13) runs through the top surface of eccentric boss (12), and the bottom of the groove (13) is in O-shaped.
2. eccentric O-shaped self-locking nut according to claim 1, it is characterised in that：The eccentric boss (12) is the frustum of a cone,
Described eccentric stop hole (22) are the bellmouth matched with eccentric boss (12).
3. eccentric O-shaped self-locking nut according to claim 1, it is characterised in that：The groove (13) has four and circumferentially
Uniformly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720157708.7U CN206458702U (en) | 2017-02-21 | 2017-02-21 | Eccentric O-shaped self-locking nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720157708.7U CN206458702U (en) | 2017-02-21 | 2017-02-21 | Eccentric O-shaped self-locking nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206458702U true CN206458702U (en) | 2017-09-01 |
Family
ID=59691352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720157708.7U Expired - Fee Related CN206458702U (en) | 2017-02-21 | 2017-02-21 | Eccentric O-shaped self-locking nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206458702U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021057534A1 (en) * | 2019-09-27 | 2021-04-01 | 周峰 | Interlocking locknut kit with end face taper centering |
| WO2022205435A1 (en) * | 2021-04-02 | 2022-10-06 | 周峰 | End surface taper centering and interlocking locknut kit |
-
2017
- 2017-02-21 CN CN201720157708.7U patent/CN206458702U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021057534A1 (en) * | 2019-09-27 | 2021-04-01 | 周峰 | Interlocking locknut kit with end face taper centering |
| WO2022205435A1 (en) * | 2021-04-02 | 2022-10-06 | 周峰 | End surface taper centering and interlocking locknut kit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190801 Address after: 322000 Yidong Industrial Park, 23li Street, Yiwu City, Zhejiang Province Patentee after: ZHEJIANG SAIRI ELECTROMECHANICAL TECHNOLOGY CO.,LTD. Address before: 322013 Zhejiang Saili Mechanical and Electrical Technology Co., Ltd. West of Zhoudian Village, 22li Street, Yiwu City, Jinhua City, Zhejiang Province Patentee before: Luo Honggang |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170901 |