CN207814189U - Double-nut locking structure - Google Patents
Double-nut locking structure Download PDFInfo
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- CN207814189U CN207814189U CN201721869236.4U CN201721869236U CN207814189U CN 207814189 U CN207814189 U CN 207814189U CN 201721869236 U CN201721869236 U CN 201721869236U CN 207814189 U CN207814189 U CN 207814189U
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- nut
- screw thread
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- main nut
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- 230000007246 mechanism Effects 0.000 claims description 17
- 230000008602 contraction Effects 0.000 claims description 4
- 230000037081 physical activity Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 10
- 238000001125 extrusion Methods 0.000 abstract 1
- 238000012856 packing Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 210000000056 organ Anatomy 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Bolts, Nuts, And Washers (AREA)
Abstract
The utility model provides a two nut locking structure, including main nut and lock nut, a main nut side end face stretches out a column body along the axis direction, is provided with the external screw thread on the outer face of cylinder of column body, and the front end of column body stretches out a column boss that a diameter is less than the external screw thread along the axis direction, is provided with two cross slots of perpendicular to axis on the column boss, is provided with the packing ring on the main nut opposite side terminal surface, lock nut be provided with the main nut on the external screw thread assorted internal thread, lock nut revolves on main nut's external screw thread. This two nut locking structure utilizes lock nut's external force, carries out the axial extrusion to the cross slot on the main nut, forces main nut to hold tightly the bolt, plays locking effect, greatly increased lock nut's locking effect, makes nut locking more reliable.
Description
Technical field
The utility model is related to a kind of nut fasteners, more particularly to a kind of double nut locking mechanism.
Background technology
Since being born nut, the approval of consumers in general is just obtained and has largely been applied to manufacturing machine manufacture row
Industry, such as electromechanical installation, building machinery, farm machinery every field are a kind of essential basic mechanical organs, each
Engineering product is actually required for using threaded fastener no matter its composition has mostly complexity.With other most of bind mode phases
Than the considerable advantage of threaded fastener is that it can dismantle and reuse.However, this is also the root place of problem, because
Threaded fastener is easy to happen from loose phenomenon.Since the industrial revolution, screw thread does not solve very well from loosening always one
Certainly the problem of.Existing technology is, existing to ask using the methods of locking plate, pin, nylon insertion, deformation screw thread, chemical gluing
Topic is the time for having delayed fastener that can voluntarily loosen to a certain extent, but loosens problem and do not solve at all.
Invention content
In order to overcome the deficiencies in the prior art, the utility model to provide a kind of double nut locking mechanism.
The utility model is achieved through the following technical solutions：A kind of double nut locking mechanism, including main nut and lock
Tight nut, one side end face of the main nut stretch out a column, outer spiral shell are provided on the external cylindrical surface of column in the axial direction
Line, the front end of column stretch out a diameter and are less than externally threaded cylindrical boss, the column and cylindrical boss in the axial direction
It is both provided with the threaded interior hole with screw thread with main nut, two translots of axis, institute are provided perpendicular in the cylindrical boss
The depth for stating translot is more than the radius of cylindrical boss, and the opening of translot is symmetrical and two translots are mutually wrong along axis with axis
It opens, washer is provided on another side end face of main nut, the washer is riveted with nut body activity；The locking nut is provided with
The internal thread to match with the external screw thread on main nut, the port of the internal thread be provided with diameter less than cylindrical boss outer diameter and
More than the contraction seam allowance of cylindrical boss internal thread major diameter, locking nut is spun on the external screw thread of main nut.
In said program, the internal diameter of the washer is provided with the annular protrusion to center position, the main nut ontology
The seam allowance of protrusion ontology end face is provided on end face, seam allowance outward flanging blocks the annular protrusion.
In said program, the washer face center is recessed inwardly, and the concave face of washer is back to main nut, the end face of washer
On be provided with radial a plurality of fin.
Compared with prior art, advantage is a kind of double nut locking mechanism of the utility model：
1. the double fluting self-locking nut installations of the utility model are simple, reusable, dismounting is more convenient, more efficient, tight
Reach complete locking property under the top load motion state of the low vibrations of firmware or strong motion, overcomes the limitation of workpiece oneself state.
2. double nut locking mechanism utilizes the external force of locking nut, the translot on main nut is compressed axially, is compeled
So that main nut is held bolt tightly, play locking effect, considerably increases the locking effect of locking nut, make nut check
It is relatively reliable.
It slots 3. symmetric double is arranged in the utility model double nut locking mechanism, coupling mechanism force can be made to be evenly distributed on screw thread,
Keep engagement closer, is suitable for vibrating and impacting more violent application.
4. the tension of the butterfly gasket in the utility model double nut locking mechanism provides locking effect to be threadedly coupled, make
Locking self-locking effect is more remarkable.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model double nut locking mechanism.
Fig. 2 is the upward view of Fig. 1.
Fig. 3 is the structural schematic diagram of part 2 in Fig. 1.
Fig. 4 is the structural schematic diagram of part 3 in Fig. 1.
In figure：1. washer, 2. main nuts, 3. locking nuts, 4. fins, 5. external screw threads, 6. columns, 7. cylindrical boss,
8. translot, 9. raised head faces, 10. annular protrusions, 11. flange seam allowances, 12. concave faces, 13. threaded interior holes, 14. internal threads, 15.
Shrink seam allowance.
Specific implementation mode
A kind of double nut locking mechanism of the utility model is further described with specific embodiment below in conjunction with the accompanying drawings：
Fig. 1 is the structural schematic diagram of the utility model double nut locking mechanism, and Fig. 2 is the upward view of Fig. 1, and Fig. 3 is in Fig. 1
The structural schematic diagram of part 2, Fig. 4 are the structural schematic diagrams of part 3 in Fig. 1.In figure, this double nut locking mechanism includes main nut 2
A column 6 is stretched out in the axial direction with the upper surface of locking nut 3, main nut 2, is provided on the external cylindrical surface of column 6
External screw thread 5, the upper end of column stretch out a diameter and are less than externally threaded cylindrical boss 7 in the axial direction, and column 6 and column are convex
Platform 7 is both provided with the threaded interior hole 13 with screw thread with main nut, is arranged in cylindrical boss 7 there are two the translot 8 perpendicular to axis,
The depth of translot 8 is more than the radius of cylindrical boss 7, and the opening of translot 8 is symmetrical and two translots 8 are mutually wrong along axis with axis
It opens, washer 1 is provided on the lower face of main nut 2, washer 1 is riveted with 2 activity of main nut, and the internal diameter of washer 1 is provided in
The annular protrusion 10 in heart direction is provided with the flange seam allowance 11 of protrusion ontology end face, flange seam allowance 11 on the lower face of main nut 2
Outward flanging blocks annular protrusion 10 and does not fall off, and the lower face center of washer 1 is recessed inwardly, and the concave face 12 of washer is back to main spiral shell
Mother 2 is provided with radial a plurality of fin 4 on the lower face of washer 2.Locking nut 3 is provided with and the external screw thread on main nut 2
The upper port of 5 internal threads 14 to match, internal thread 14 is provided with diameter less than 7 outer diameter of cylindrical boss and is more than threaded interior hole 13
The contraction seam allowance 15 of major diameter, locking nut 3 are spun on the external screw thread 5 of main nut.
When locking, first main nut 2 is spun on and is needed on the threaded rod that fastens, after tightening, then locking nut 3 is revolved into main nut
On 2, at this point, washer 1 is driven plain on the end face by securing objects, fin 4 is increased with by the friction of the end face of securing objects, is prevented
It only loosens, contraction 15 inner face of seam allowance on locking nut 3 is pressed on the upper surface of cylindrical boss 7, and translot 8 is made to generate change
Shape, locking achieve the effect that locking on threaded rod.
This double nut locking mechanism utilizes the external force of locking nut, is compressed axially to the translot on main nut, compels
So that main nut is held bolt tightly, plays locking effect, meanwhile, the gasket being driven plain generates greatly with by securing objects surface
Frictional force, the gasket being driven plain generates pretightning force upwards to main nut, prevents rotation from loosening.Two locking modes are made simultaneously
With considerably increasing the locking effect of locking nut, keep nut check relatively reliable.
The above descriptions are merely preferred embodiments of the present invention, not makees in any form to the utility model
Limitation be not limited to the utility model although the utility model has been disclosed with preferred embodiment as above, it is any ripe
Know professional and technical personnel, do not departing within the scope of technical solutions of the utility model, when using the disclosure above method and
Technology contents make a little change or the equivalent embodiment for being modified to equivalent variations, as long as being without departing from the utility model technology
The content of scheme, it is made by the above technical examples according to the technical essence of the present invention it is any it is simple modification, equivalent variations with
Modification, is still within the scope of the technical solutions of the present invention.
Claims (3)
1. a kind of double nut locking mechanism, including main nut and locking nut, it is characterised in that：One side end face edge of the main nut
Axis direction stretches out a column, is provided with external screw thread on the external cylindrical surface of column, the front end of column is stretched in the axial direction
Go out a diameter and be less than externally threaded cylindrical boss, the column and cylindrical boss are both provided with the screw thread with main nut with screw thread
Endoporus, two translots of axis are provided perpendicular in the cylindrical boss, and the depth of the translot is more than the half of cylindrical boss
Diameter, the opening of translot is symmetrical and two translots are mutually staggered along axis with axis, and main nut is provided with pad on another side end face
Circle, the washer are riveted with nut body activity；The locking nut is provided with match with the external screw thread on main nut in
The port of screw thread, the internal thread is provided with contraction of the diameter less than cylindrical boss outer diameter and more than cylindrical boss internal thread major diameter
Seam allowance, locking nut are spun on the external screw thread of main nut.
2. a kind of double nut locking mechanism according to claim 1, it is characterised in that：The internal diameter of the washer be provided with to
The annular protrusion of center position, the seam allowance of protrusion ontology end face is provided on the end face of the main nut ontology, and seam allowance is turned-out
State annular protrusion in checkpost residence.
3. a kind of double nut locking mechanism according to claim 1, it is characterised in that：The washer face center concaves
It falls into, the concave face of washer is provided with radial a plurality of fin back to main nut on the end face of washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721869236.4U CN207814189U (en) | 2017-12-27 | 2017-12-27 | Double-nut locking structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721869236.4U CN207814189U (en) | 2017-12-27 | 2017-12-27 | Double-nut locking structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207814189U true CN207814189U (en) | 2018-09-04 |
Family
ID=63331400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721869236.4U Active CN207814189U (en) | 2017-12-27 | 2017-12-27 | Double-nut locking structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207814189U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529486A (en) * | 2019-09-12 | 2019-12-03 | 新余钢铁股份有限公司 | A kind of blocking double nut structure and its application method |
| CN110594269A (en) * | 2019-10-17 | 2019-12-20 | 柳州欧维姆机械股份有限公司 | Pull rod nut component with high fatigue performance |
| CN111188827A (en) * | 2020-02-11 | 2020-05-22 | 台州市恩晓科技咨询有限公司 | Locknut and use method and component assembly method thereof |
| CN113738754A (en) * | 2021-08-12 | 2021-12-03 | 王琴兰 | Three-dimensional multi-dimensional anti-loosening structure |
| WO2023039971A1 (en) * | 2021-09-16 | 2023-03-23 | 日泰（上海）汽车标准件有限公司 | Locking nut with s-shaped threads |
-
2017
- 2017-12-27 CN CN201721869236.4U patent/CN207814189U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529486A (en) * | 2019-09-12 | 2019-12-03 | 新余钢铁股份有限公司 | A kind of blocking double nut structure and its application method |
| CN110594269A (en) * | 2019-10-17 | 2019-12-20 | 柳州欧维姆机械股份有限公司 | Pull rod nut component with high fatigue performance |
| CN111188827A (en) * | 2020-02-11 | 2020-05-22 | 台州市恩晓科技咨询有限公司 | Locknut and use method and component assembly method thereof |
| CN111188827B (en) * | 2020-02-11 | 2021-11-19 | 台州市恩晓科技咨询有限公司 | Locknut and use method and component assembly method thereof |
| CN113738754A (en) * | 2021-08-12 | 2021-12-03 | 王琴兰 | Three-dimensional multi-dimensional anti-loosening structure |
| WO2023039971A1 (en) * | 2021-09-16 | 2023-03-23 | 日泰（上海）汽车标准件有限公司 | Locking nut with s-shaped threads |
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