CN211693160U - Anti-loose nut - Google Patents
Anti-loose nut Download PDFInfo
- Publication number
- CN211693160U CN211693160U CN201922455728.4U CN201922455728U CN211693160U CN 211693160 U CN211693160 U CN 211693160U CN 201922455728 U CN201922455728 U CN 201922455728U CN 211693160 U CN211693160 U CN 211693160U
- Authority
- CN
- China
- Prior art keywords
- nut
- hole site
- limiting
- locknut
- nut main
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000009434 installation Methods 0.000 claims description 4
- 230000007704 transition Effects 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims 1
- 238000007906 compression Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 7
- 239000000463 material Substances 0.000 description 3
- 238000003825 pressing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000004677 Nylon Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Landscapes
- Bolts, Nuts, And Washers (AREA)
- Connection Of Plates (AREA)
Abstract
The utility model provides a locking nut, which comprises a nut main body and a locking assembly, wherein an internal thread is arranged in the nut main body, a first groove is arranged on one end surface of the nut main body, which is far away from a workpiece, and the locking assembly is arranged on the first groove; the anti-loosening assembly comprises an anti-loosening rotating piece and a first limiting assembly, wherein inner threads are arranged on the inner side of the anti-loosening rotating piece, one side of the anti-loosening rotating piece is rotatably connected with the nut main body, and the inner threads are close to the inner threads of the nut main body through the first limiting assembly on the other side; first spacing subassembly sets up in the nut main part, and it includes gag lever post and elastic component, set up the shoulder hole in the nut main part, the shoulder hole includes first hole site and second hole site, first hole site internal diameter is greater than second hole site internal diameter, the gag lever post including respectively with first hole site and second hole site complex guide part and spacing post, the elastic component sets up in first hole site to be located between first hole site bottom and the guide part, will spacing post terminal ejecting second hole site.
Description
Technical Field
The utility model relates to a technical field of mechanical connection, especially a locknut.
Background
Bolted connection is the very commonly used structure in mechanical engineering field, and current nut fastening nature is good, but locking mobility is not good, in the long-time use of spare part, appears the not hard up phenomenon of nut and bolt difference. At present, only the Japan Hedelock industrial company produces the nut which can never be loosened, the performance of preventing loosening is the most excellent, and the current level is the highest level in the world; however, the female nut of the wedge-headed nut is affected by metal ductility and fatigue, the processing technology is complicated, the requirements on materials and tools are high, and the cost is too high. The existing domestic bolt anti-loosening methods are various, wherein the method for increasing the friction force comprises the methods of arranging a spring washer, a double nut, a locking washer, a fastening nut, nylon inserts, chemically gluing and the like, but the reliability is unstable under the conditions of heavy load, severe vibration and severe environment; the anti-loose method of the structure comprises eccentric nut anti-loose, cone pressing and holding type anti-loose, Tang's anti-loose and spring pressing type anti-loose, and the anti-loose method cannot be widely used due to complex manufacture and high cost.
In view of the above, the present inventors have specially designed a locknut, and have resulted from this.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a locknut to solve the problems mentioned in the prior art; the technical scheme adopted is as follows:
a locknut is used for being matched with a bolt to lock a workpiece, the bolt penetrates through the workpiece to be matched with the nut, and comprises a nut main body and a lockassembly, wherein an internal thread is arranged in the nut main body, a first groove is formed in one end face, far away from the workpiece, of the nut main body, and the lockassembly is arranged on the first groove;
the anti-loosening assembly comprises an anti-loosening rotating piece and a first limiting assembly, wherein inner threads are arranged on the inner side of the anti-loosening rotating piece, one side of the anti-loosening rotating piece is rotatably connected with the nut main body, and the inner threads are close to the inner threads of the nut main body through the first limiting assembly on the other side of the anti-loosening rotating piece;
first spacing subassembly sets up in the nut main part, and it includes gag lever post and elastic component, set up the shoulder hole in the nut main part, the shoulder hole includes first hole site and second hole site, first hole site internal diameter is greater than second hole site internal diameter, the gag lever post include respectively with first hole site and second hole site complex guide part and spacing post, the elastic component sets up in first hole site to be located between first hole site bottom and the guide part, will spacing post terminal ejecting second hole site.
Furthermore, the anti-loosening rotating piece is rotatably connected with the nut main body through a fixing piece.
Further, the fixing piece comprises a limiting part used for limiting the anti-loose rotating piece to the first groove, a cylindrical part used for rotating the anti-loose rotating piece and a threaded part used for fixing.
Furthermore, an inner hexagonal groove for installation is formed in the limiting portion, the anti-loosening rotating piece is arranged in a first through hole in transition fit with the cylindrical portion, and the nut body is provided with a threaded hole in fit with the threaded portion.
Furthermore, the elastic part adopts a spring, and the spring is always in a compressed state.
Furthermore, the bottom of the inner side of the anti-loosening rotating piece on one side of the first limiting assembly is provided with a round angle.
Furthermore, an anti-skid surface is arranged on one end face, close to the workpiece, of the nut body.
Furthermore, the anti-loosening rotating piece is provided with a second limiting assembly between the nut bodies, and the second limiting assembly comprises a limiting boss arranged on the nut body and a limiting groove which is arranged on the anti-loosening rotating piece and matched with the limiting boss.
The utility model discloses a locknut is through setting up the external screw-thread fit of locking rotating member and bolt, after nut and bolt locking, is close to the external screw thread of bolt with the rotation of locking rotating member to make interior screw thread hug closely in the external screw thread of bolt completely, can prevent after locking that the internal thread of nut main part is not hard up, moreover the utility model discloses a locknut is with low costs, and simple process does not have high expectations to the material.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Wherein:
fig. 1 is a schematic structural view of the locknut of the present invention;
fig. 2 is an opening schematic view of the locknut of the present invention;
fig. 3 is a first cross-sectional view of the locknut of the present invention;
fig. 4 is a second cross-sectional view of the locknut of the present invention;
fig. 5 is a state diagram of the locknut of the present invention.
Description of reference numerals:
01-anti-loose component, 10-nut body, 11-internal thread, 12-first groove, 13-anti-slip surface, 14-threaded hole, 15-limiting boss, 16-stepped hole, 161-first hole site, 162-second hole site, 20-anti-loose rotating piece, 21-internal thread, 22-first through hole, 23-limiting groove, 30-first limiting component, 31-limiting rod, 311-guiding part, 312-limiting column, 32-elastic piece, 40-fixing piece, 41-limiting part, 411-internal hexagonal groove, 42-cylindrical part and 43-threaded part.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the terms in the present invention can be understood in a specific case to those skilled in the art.
As shown in fig. 1 to 5, the present invention provides a locknut and provides an embodiment thereof. In the embodiment, the anti-loosening nut is used for locking a workpiece in cooperation with a bolt, the bolt penetrates through the workpiece and is matched with the nut, the anti-loosening nut comprises a nut body 10 and an anti-loosening assembly 01, an internal thread 11 is arranged in the nut body 10, a first groove 12 is arranged on one end face, away from the workpiece, of the nut body, and the anti-loosening assembly 01 is arranged on the first groove 12.
The anti-loosening assembly 01 comprises an anti-loosening rotating piece 20 and a first limiting assembly 30, wherein inner threads 21 are arranged on the inner side of the anti-loosening rotating piece 20, one side of the anti-loosening rotating piece is connected with the nut body 10 in a rotating mode, the inner threads 21 are close to the inner threads 11 of the nut body 10 through the first limiting assembly 30 on the other side of the anti-loosening rotating piece, namely after the nut and the bolt are locked, the anti-loosening rotating piece 20 rotates and is close to the outer threads of the bolt, the inner threads 21 are made to be completely attached to the outer threads of the bolt, and.
The anti-loose rotating piece 20 is rotatably connected with the nut body 10 through a fixing piece 40, specifically, the fixing piece 40 comprises a limiting part 41 for limiting the anti-loose rotating piece 20 to the first groove 12, a cylindrical part 42 for rotating the anti-loose rotating piece 20 and a threaded part 43 for fixing; the limiting portion 41 is provided with an inner hexagonal groove 411 for installation, the anti-loose rotating piece 20 is arranged in the first through hole 22 in transition fit with the cylindrical portion 42, and the nut body 10 is arranged in the threaded hole 14 in fit with the threaded portion 43.
The elastic member 32 is a spring, and the spring is always in a compressed state. In order to facilitate the closing of the anti-loose rotating piece 20, the bottom of the inner side of the anti-loose rotating piece 20, which is located on one side of the first limiting assembly 30, is provided with a fillet; and the top of the limiting column 312 is also provided with a round angle, and the limiting column 312 can be pressed into the second hole 162 by using the bottom of the anti-loosening rotating element 20 only by slightly pushing, and when the limiting column 312 is not pressed any more, the limiting column can be automatically ejected out under the action of the elastic element 32.
The anti-slip surface 13 is arranged on one end face, close to the workpiece, of the nut body 10, so that the friction force between the nut body 10 and the workpiece can be improved, and the anti-loosening capability of the nut body 10 can be improved again.
The anti-loose rotating piece 20 is provided with a second limiting assembly arranged between the nut main bodies 10, and the second limiting assembly comprises a limiting boss 15 arranged on the nut main body 10 and a limiting groove 23 arranged on the anti-loose rotating piece 20 and matched with the limiting boss 15; the anti-loose rotating element 20 can be firmly arranged on the first groove 12 by matching the fixing element 40 and the limiting assembly.
The utility model discloses a principle that locknut adopted is as follows, and interior screw thread 21 of locking rotating member 20 is equivalent to the extension of nut main part 10 internal thread 11, and interior screw thread 21 is unanimous with internal thread 11's pitch, and nevertheless interior screw thread 21's path is less than internal thread 11's path, is restricted the back by first spacing subassembly 30 when locking rotating member 20 for interior screw thread 21's bellying can be hugged closely in the bottom of bolt external screw thread completely, and is just not hard up. The specific operating principle is as follows: during the installation, earlier open locking rotating member 20, utilize the spanner to lock nut main part 10 on the bolt, then close locking rotating member 20, because its bottom sets up the fillet, directly close promptly can, when closing the back completely, locking rotating member 20 is withstood by spacing post 312, cooperation spacing boss 15 and spacing groove 23 can make locking rotating member 20 near on the external screw thread in the bolt simultaneously, prevent not hard up, when needs are unscrewed, press gag lever post 31, make spacing post 312 pressed to in the second hole site 162, locking rotating member 20 can be opened, it can to loosen nut main part 10 again.
To sum up, the utility model discloses a locknut is through the external screw-thread fit who sets up locking rotating member and bolt, after nut and bolt locking, is close to locking rotating member is rotatory and to the external screw thread of bolt to make interior screw thread hug closely in the external screw thread of bolt completely, can prevent after locking that the internal thread of nut main part is not hard up, moreover the utility model discloses a locknut is with low costs, and simple process requires not high to the material.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (8)
1. A locknut is used for locking a workpiece in a matching way with a bolt, the bolt penetrates through the workpiece and is matched with the nut, and the locknut is characterized by comprising a nut main body and a locknut assembly, wherein an internal thread is arranged in the nut main body, a first groove is arranged on one end face, far away from the workpiece, of the nut main body, and the locknut assembly is arranged on the first groove;
the anti-loosening assembly comprises an anti-loosening rotating piece and a first limiting assembly, wherein inner threads are arranged on the inner side of the anti-loosening rotating piece, one side of the anti-loosening rotating piece is rotatably connected with the nut main body, and the inner threads are close to the inner threads of the nut main body through the first limiting assembly on the other side;
first spacing subassembly sets up in the nut main part, and it includes gag lever post and elastic component, set up the shoulder hole in the nut main part, the shoulder hole includes first hole site and second hole site, first hole site internal diameter is greater than second hole site internal diameter, the gag lever post include respectively with first hole site and second hole site complex guide part and spacing post, the elastic component sets up in first hole site to be located between first hole site bottom and the guide part, will spacing post terminal ejecting second hole site.
2. The locknut of claim 1 wherein the locknut is rotatably coupled to the nut body by a fastener.
3. The locknut as claimed in claim 2, wherein the fixing member comprises a position-limiting portion for limiting the locking rotating member to the first recess, a cylindrical portion for rotation of the locking rotating member, and a threaded portion for fixing.
4. The anti-loose nut as claimed in claim 3, wherein the limiting portion is provided with an inner hexagonal groove for installation, the anti-loose rotating member is arranged in a first through hole in transition fit with the cylindrical portion, and the nut body is arranged in a threaded hole in fit with the threaded portion.
5. The locknut of claim 1 wherein said resilient member is a spring and said spring is always in compression.
6. The locknut as claimed in claim 1, wherein the bottom of the inner side of the locking rotary member on the side of the first position-limiting member is provided with a rounded corner.
7. The locknut of claim 1 wherein the nut body is provided with a non-slip surface adjacent an end surface of the workpiece.
8. The anti-loose nut as claimed in claim 1, wherein the anti-loose rotating member further comprises a second limiting component disposed between the nut bodies, and the second limiting component comprises a limiting boss disposed on the nut body and a limiting groove disposed on the anti-loose rotating member and engaged with the limiting boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922455728.4U CN211693160U (en) | 2019-12-31 | 2019-12-31 | Anti-loose nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922455728.4U CN211693160U (en) | 2019-12-31 | 2019-12-31 | Anti-loose nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211693160U true CN211693160U (en) | 2020-10-16 |
Family
ID=72797137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922455728.4U Expired - Fee Related CN211693160U (en) | 2019-12-31 | 2019-12-31 | Anti-loose nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211693160U (en) |
-
2019
- 2019-12-31 CN CN201922455728.4U patent/CN211693160U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212131033U (en) | Anti-drop loose's big bolt of axial locking | |
| CN211693160U (en) | Anti-loose nut | |
| CN102966657B (en) | Quick locking mechanism | |
| CN210240270U (en) | Self-locking fastener | |
| CN111520391A (en) | Check bolt structure | |
| CN214998780U (en) | Bolt and nut anti-loosening structure | |
| CN215409665U (en) | Check bolt assembly | |
| CN211599240U (en) | Anti-loosening connecting pair | |
| CN211599243U (en) | Check bolt assembly | |
| CN113217524A (en) | Anti-loosening screw assembly and screw | |
| CN216666195U (en) | Large self-locking external nut with outer side open slot | |
| CN208364581U (en) | A kind of check bolt and screw connector | |
| CN101975213A (en) | Anti-loose method of nut | |
| CN215293203U (en) | Nut with anti-drop structure | |
| CN220337247U (en) | Anti-drop nut | |
| CN220227466U (en) | Lock nut | |
| CN213541027U (en) | Anti-loosening bolt assembly | |
| CN218542882U (en) | Locknut with elastic anti-loosening structure | |
| CN215257286U (en) | Self-locking nut | |
| CN208686912U (en) | Adjusting nut for lead screw pre-stretching | |
| CN218351823U (en) | SMA type plug | |
| CN219282208U (en) | Locking anti-loosening locking structure fastening bolt | |
| CN217177116U (en) | Locking fastening external member that moves | |
| CN213331991U (en) | Double-nut anti-loosening structure | |
| CN220435220U (en) | Screw nut cooperation structure with rectangular teeth |
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: 20201016 |