CN209671386U - A kind of double nut cone washer Anti-looseness bolt device - Google Patents
A kind of double nut cone washer Anti-looseness bolt device Download PDFInfo
- Publication number
- CN209671386U CN209671386U CN201920301042.7U CN201920301042U CN209671386U CN 209671386 U CN209671386 U CN 209671386U CN 201920301042 U CN201920301042 U CN 201920301042U CN 209671386 U CN209671386 U CN 209671386U
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- China
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- nut
- fastening
- bar
- bolt
- checknut
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Abstract
The utility model relates to a kind of double nuts to bore washer Anti-looseness bolt device, the device includes shoulder bolt (1), fastening nut (2), bore washer (3) and stop nut (4), shoulder bolt (1) includes bolt head (11), fastening thread bar (12) and checknut bar (13), fastening nut (2) is threadedly coupled with fastening thread bar (12), stop nut (4) is threadedly coupled with checknut bar (13), washer (3) are bored to be arranged between fastening nut (2) and stop nut (4), the utility model is simple and practical in structure, it is convenient to disassembly, locking fastening is solid and reliable, improve the locking fastening performance of bolt, it is versatile.
Description
Technical field
The utility model relates to a kind of fasteners, and in particular to a kind of double nut cone washer Anti-looseness bolt device.
Background technique
Bolt and nut connection is a kind of very common fastener connecting mode in field of mechanical technique, in various mechanical necks
It is very widely used in domain, it is applied to various occasions, to realize being fastenedly connected for part.But by high-strength impact load,
In high-intensitive alternating load and the working environment of high temperature variation, bolt and nut couples the problem of being produced from loosening.
In existing check bolt nut coupling structure, some anti-loosing effects are good, but the disassembly of anti-loose structure complexity is not square
Just；Some anti-loose structure disassembled simplies are convenient, but anti-loosing effect is bad.One kind disclosed in application number 201611106915.6 is positive and negative
Check bolt, the bolt are equipped with plus thread bar and left-hand thread bar, and plus thread bar is equipped with the first nut, sets on left-hand thread bar
There is the second nut, the first nut is fastening nut, and the second nut is locking nut, and two nuts are simultaneously tightly solid, and above-mentioned is positive and negative
Check bolt structure has the advantages that structure is simple, the loosening due to caused by vibration and line load, installing and dismounting is prevented to be easy,
But the positive and negative check bolt structure is to reach the mesh for preventing nut loosening by the frictional force between positive and negative two nuts
, there is preferable anti-loosing effect really in certain degree, but there is following two points shortcoming in actual use: one
It is that under the environment that load pretends strong with large vibration amplitude, locking nut can slowly become loose, will appear between two nuts
Gap, the frictional force between being allowed to disappears, so that fastening nut be made to lose fastening effect；Second is that due to the height of fastenings
It is uncertain, it does not know the length of positive/negative thread bar also, accurately cannot suitably make two nuts just and tightly solid, versatility
Difference.
Summary of the invention
Utility model aims to solve the shortcomings of the prior art, provide a kind of double nut cone locking spiral shell of washer
Pin device, simple and practical in structure, convenient to disassembly, locking fastening is solid and reliable, improves the locking fastening performance of bolt, leads to
It is strong with property.
The technical solution adopted in the utility model is: a kind of double nut cone washer Anti-looseness bolt device, including shoulder bolt
1, fastening nut 2, cone washer 3 and stop nut 4, shoulder bolt 1 include bolt head 11, fastening thread bar 12 and checknut bar
13, the shape of bolt head 11 is positive hexagonal prism, is equipped with hexagonal hole in just, the screw thread and checknut of fastening thread bar 12 among it
The thread rotary orientation of bar 13 is on the contrary, the diameter of checknut bar 13 is less than the diameter of fastening thread bar 12, fastening nut 2 and fastening spiral shell
Rasp bar 12 is threadedly coupled, and is provided with location notch hole 21, stop nut 4 is threadedly coupled with checknut bar 13, is arranged thereon
There are internal taper hole 41, the threaded hole bias of internal taper hole 41 and stop nut 4, cone washer 3 is arranged in fastening nut 2 and stop nut 4
Between, shape is circular cone shape, and bottom surface is provided with positioning convex platform 31, and positioning convex platform 31 is inserted in location notch hole 21, cone
The upper section of washer 3 is in contact with internal taper hole 41.
The utility model have the advantages that compared with prior art it is simple and practical in structure, it is convenient to disassembly, prevent
It is elastic solid solid and reliable, the locking fastening performance of bolt is improved, it is versatile.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model,
Fig. 2 is the structural schematic diagram of fastening nut in the utility model,
Fig. 3 is the structural schematic diagram that washer is bored in the utility model.
Specific embodiment
The preferred embodiment of the utility model is described in detail with reference to the accompanying drawing, so that the advantages of the utility model
It can be easier to be readily appreciated by one skilled in the art with feature, to make the protection scope of the utility model apparent clear
Define.
As shown in Figure 1, Figure 2 and Figure 3, a kind of double nut bores washer Anti-looseness bolt device, including shoulder bolt 1, fastening spiral shell
Mother 2, cone washer 3 and stop nut 4, shoulder bolt 1 include bolt head 11, fastening thread bar 12 and checknut bar 13, bolt
First 11 shape is positive hexagonal prism, is equipped with hexagonal hole in just among it, the screw thread of fastening thread bar 12 and checknut bar 13
For thread rotary orientation on the contrary, fastening thread bar 12 is right-handed thread, checknut bar 13 is left hand thread, the diameter of checknut bar 13
Less than the diameter of fastening thread bar 12, fastening nut 2 is threadedly coupled with fastening thread bar 12, is provided with location notch hole 21,
Stop nut 4 is threadedly coupled with checknut bar 13, is provided with internal taper hole 41, the screw thread of internal taper hole 41 and stop nut 4
Hole is eccentric, and cone washer 3 is arranged between fastening nut 2 and stop nut 4, and shape is circular cone shape, and bottom surface is provided with fixed
Position boss 31, positioning convex platform 31 are inserted in location notch hole 21, and the upper section of cone washer 3 is in contact with internal taper hole 41.
Part is sleeved on fastening thread bar 12, is fastened between bolt head 11 and fastening nut 2, the shape of bolt head 11
Be positive hexagonal prism, is equipped with hexagonal hole in just among it, and outer hexagonal spanner or allen wrench can be easy to use to carry out tightening operation；
Washer 3 is bored to be arranged between fastening nut 2 and stop nut 4, when vibration, which occurs, loosens bolt device, fastening thread bar 12
Screw thread and checknut bar 13 thread rotary orientation on the contrary, the loosening of fastening nut 2 can be hindered by the locking reaction of stop nut 4
Gear, so that fastening nut 2 be made not loosen, the threaded hole of internal taper hole 41 and stop nut 4 is eccentric, stop nut 4 with it is locking
The threaded connection of threaded rod 13 loosens stop nut 4 not by the taper eccentric anti-loose effect of cone washer 3 and internal taper hole 41；Cone
Washer 3 is arranged between fastening nut 2 and stop nut 4, can make the length of fastening thread bar 12 and checknut bar 13 not by
The influence of fastenings height change, it is versatile, fastening nut 2, cone washer 3 and stop nut 4 can be made to be securely attached to
Together, locking fastening is solid and reliable.
Not limited to this, any change or replacement expected without creative work should all be covered in the utility model
Protection scope within.Therefore, the protection scope of the utility model should be determined by the scope of protection defined in the claims.
Claims (1)
1. a kind of double nut bores washer Anti-looseness bolt device, which is characterized in that including shoulder bolt (1), fastening nut (2), cone
Washer (3) and stop nut (4), shoulder bolt (1) include bolt head (11), fastening thread bar (12) and checknut bar
(13), the shape of bolt head (11) is positive hexagonal prism, is equipped with hexagonal hole in just among it, the screw thread of fastening thread bar (12) and anti-
The thread rotary orientation of loose threaded rod (13) is on the contrary, the diameter of checknut bar (13) is fastened less than the diameter of fastening thread bar (12)
Nut (2) is threadedly coupled with fastening thread bar (12), is provided with location notch hole (21), stop nut (4) and checknut
Bar (13) is threadedly coupled, and is provided with internal taper hole (41), and the threaded hole of internal taper hole (41) and stop nut (4) is eccentric, cone pad
It encloses (3) to be arranged between fastening nut (2) and stop nut (4), shape is circular cone shape, and bottom surface is provided with positioning convex platform
(31), positioning convex platform (31) is inserted in location notch hole (21), and the upper section of cone washer (3) is in contact with internal taper hole (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920301042.7U CN209671386U (en) | 2019-03-04 | 2019-03-04 | A kind of double nut cone washer Anti-looseness bolt device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920301042.7U CN209671386U (en) | 2019-03-04 | 2019-03-04 | A kind of double nut cone washer Anti-looseness bolt device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209671386U true CN209671386U (en) | 2019-11-22 |
Family
ID=68571049
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920301042.7U Active CN209671386U (en) | 2019-03-04 | 2019-03-04 | A kind of double nut cone washer Anti-looseness bolt device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209671386U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112355984A (en) * | 2020-09-30 | 2021-02-12 | 上海宝冶冶金工程有限公司 | Support for disassembling shaft sleeve of coupling and disassembling method of shaft sleeve of coupling |
| CN113623309A (en) * | 2020-05-09 | 2021-11-09 | 中国石油化工股份有限公司 | Self-locking screw connection structure |
-
2019
- 2019-03-04 CN CN201920301042.7U patent/CN209671386U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113623309A (en) * | 2020-05-09 | 2021-11-09 | 中国石油化工股份有限公司 | Self-locking screw connection structure |
| CN112355984A (en) * | 2020-09-30 | 2021-02-12 | 上海宝冶冶金工程有限公司 | Support for disassembling shaft sleeve of coupling and disassembling method of shaft sleeve of coupling |
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