CN110630616A - Bolt nut piece capable of never loosening - Google Patents
Bolt nut piece capable of never loosening Download PDFInfo
- Publication number
- CN110630616A CN110630616A CN201910930010.8A CN201910930010A CN110630616A CN 110630616 A CN110630616 A CN 110630616A CN 201910930010 A CN201910930010 A CN 201910930010A CN 110630616 A CN110630616 A CN 110630616A
- Authority
- CN
- China
- Prior art keywords
- nut
- main
- bolt
- locking
- threaded hole
- 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.)
- Pending
Links
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B37/00—Nuts or like thread-engaging members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
- F16B39/00—Locking of screws, bolts or nuts
- F16B39/02—Locking of screws, bolts or nuts in which the locking takes place after screwing down
- F16B39/12—Locking of screws, bolts or nuts in which the locking takes place after screwing down by means of locknuts
Abstract
The invention discloses a bolt and nut piece which can never loosen, which comprises a main nut, a main bolt, a locking nut and a locking bolt, wherein the locking nut is positioned at the top end of the main nut, and the locking nut and the main nut are fixedly connected; a section of threaded hole is formed in the top end of the main bolt downwards, the locking nut and the threaded hole are provided with threads with the same aperture and the same direction, and the main nut and the main bolt are in clockwise/anticlockwise rotation fit; the locking bolt is matched with the locking nut and the threaded hole in a counterclockwise/clockwise rotating mode simultaneously. According to the invention, the main bolt, the main nut, the locking bolt and the locking nut are arranged, so that the locking bolt is not easy to loosen after being fixed, and the locking bolt is simple in structure, simple in manufacturing process, low in cost and easy to assemble.
Description
Technical Field
The invention relates to the technical field of mechanical parts, in particular to a bolt and nut piece which is never loosened.
Background
Nut and bolt are the most commonly used parts for fastening, and the commonly used nut and bolt is used on some mechanical devices. The nut can be loosened due to vibration caused by mechanical operation, so that potential safety hazards are brought to production and life, normal operation of machinery is influenced, and particularly on a train running at a high speed, the nut can be easily loosened due to the vibration caused by the high-speed motion of the train, so that the safety of the train and passengers can be endangered.
The existing anti-loosening nuts in the market are partially matched with special bolts or special gaskets, and the anti-loosening principle is that the nuts or the gaskets are mostly provided with rough edges and corners to increase the friction force of stress surfaces of the nuts or the gaskets and delay the loosening time of the nuts, so that the nuts can not be loosened forever in a true sense, the production process is complex, and the production materials are also demanding.
Some anti-loosening nuts adopt special locking structures to prevent the nuts from loosening, but the technical structure is complex, the requirement on the manufacturing process degree is high, and the assembly effect is ensured.
Disclosure of Invention
The invention aims to provide a bolt and nut piece which is never loosened, has the advantages of difficult loosening after being fixed, simple structure, simple manufacturing process, low cost and easy assembly.
In order to achieve the purpose, the invention provides the following technical scheme: a bolt and nut piece capable of never loosening comprises a main nut, a main bolt, a locking nut and a locking bolt, wherein the locking nut is positioned at the top end of the main nut, and the locking nut and the main nut are fixedly connected; a section of threaded hole is formed in the top end of the main bolt downwards, the locking nut and the threaded hole are provided with threads with the same aperture and the same direction, and the main nut and the main bolt are in clockwise/anticlockwise rotation fit; the locking bolt enters the locking nut and the threaded hole and is in simultaneous anticlockwise/clockwise rotation fit with the locking nut and the threaded hole.
Preferably, the main nut and the lock nut have the same outer diameter.
Compared with the prior art, the invention has the beneficial effects that: through setting up kingbolt, main nut, locking bolt and locking nut, difficult not hard up after fixed, and simple structure, manufacturing process is simple, and is with low costs, easily assembly.
Drawings
FIG. 1 is a schematic structural view of an assembly body of the present invention;
FIG. 2 is a schematic view of the construction of the main bolt of the present invention;
FIG. 3 is a schematic structural view of the main nut and the lock nut of the present invention;
fig. 4 is a schematic structural view of the locking bolt of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
As shown in fig. 2, the main bolt comprises a main bolt head 1 and a main bolt rod 2, a section of threaded hole 3 is formed in the top end of the main bolt rod 2 downwards, and an external thread 4 is formed on the main bolt rod 2.
As shown in fig. 3, the lock nut 8 is located at the top end of the main nut 5, and the two are fixedly connected. The main nut 5 and the lock nut 8 have the same outer diameter. The locking nut 8 and the threaded hole 3 have the same hole diameter and the same thread direction.
As shown in fig. 4, the locking bolt includes a locking bolt head 6 and a locking bolt shaft 7.
Example 1
The assembly of the permanently unfastened bolt-nut member shown in fig. 1 is carried out by: after the main nut 5 and the main bolt rod 2 are matched with a set position in a clockwise rotating mode, the locking bolt rod 7 and the locking nut 8 are matched in an anticlockwise rotating mode, the locking nut 8 penetrates out of the locking bolt rod 7 to enter the threaded hole 3, and the locking bolt rod continues to rotate anticlockwise to be matched with the threaded hole 3 until the locking bolt head presses the top face of the locking nut 8.
Example 2
The assembly drawing of the bolt nut piece which can never loosen is that the assembly process is as follows: after the main nut 5 and the main bolt rod 2 are matched with a set position in a counterclockwise rotating mode, the locking bolt rod 7 and the locking nut 8 are matched in a clockwise rotating mode, the locking nut 8 penetrates out of the locking bolt rod 7 to enter the threaded hole 3, and the locking bolt rod continues to rotate clockwise to be matched with the threaded hole 3 until the locking bolt head presses the top face of the locking nut 8.
The principle of no looseness: the main bolt and the main nut have the same rotation trend under the condition of mechanical vibration, namely when the main nut has a reverse rotation loosening trend, the locking nut generates a tightening and fastening trend at the time, so that the loosening of the main nut can be restrained. On the contrary, when the locking nut tends to be loose, the main nut tends to be fastened. That is to say, when any nut has the tendency of loosening, the other nut has the tendency of fastening, and the purpose of never loosening is realized.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (2)
1. A bolt and nut piece which can never loosen is characterized by comprising a main nut, a main bolt, a locking nut and a locking bolt, wherein the locking nut is positioned at the top end of the main nut and fixedly connected with the main nut;
a section of threaded hole is formed in the top end of the main bolt downwards, the locking nut and the threaded hole are provided with threads with the same aperture and the same direction, and the main nut and the main bolt are in clockwise/anticlockwise rotation fit; the locking bolt enters the locking nut and the threaded hole and is in simultaneous anticlockwise/clockwise rotation fit with the locking nut and the threaded hole.
2. A never-loosening bolt-nut member as in claim 1, wherein said main nut and said lock nut have the same outer diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910930010.8A CN110630616A (en) | 2019-09-29 | 2019-09-29 | Bolt nut piece capable of never loosening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910930010.8A CN110630616A (en) | 2019-09-29 | 2019-09-29 | Bolt nut piece capable of never loosening |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110630616A true CN110630616A (en) | 2019-12-31 |
Family
ID=68973353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910930010.8A Pending CN110630616A (en) | 2019-09-29 | 2019-09-29 | Bolt nut piece capable of never loosening |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110630616A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2177120Y (en) * | 1993-07-17 | 1994-09-14 | 张吉林 | Anti-loose, anti-theft fastening bolt |
| CN2432378Y (en) * | 2000-03-19 | 2001-05-30 | 李晓军 | Loosing-proof maintenance-free fixed bolt |
| JP2006189065A (en) * | 2004-12-28 | 2006-07-20 | Ishikawajima Harima Heavy Ind Co Ltd | Fitting structure |
| CN102400993A (en) * | 2011-02-22 | 2012-04-04 | 汪砚秋 | Anti-loosening bolt for T-shaped nail |
| CN207989498U (en) * | 2017-09-25 | 2018-10-19 | 罗兵 | Tenon nut |
| CN209100458U (en) * | 2018-11-29 | 2019-07-12 | 赵复亮 | Anti-loose fastener |
-
2019
- 2019-09-29 CN CN201910930010.8A patent/CN110630616A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2177120Y (en) * | 1993-07-17 | 1994-09-14 | 张吉林 | Anti-loose, anti-theft fastening bolt |
| CN2432378Y (en) * | 2000-03-19 | 2001-05-30 | 李晓军 | Loosing-proof maintenance-free fixed bolt |
| JP2006189065A (en) * | 2004-12-28 | 2006-07-20 | Ishikawajima Harima Heavy Ind Co Ltd | Fitting structure |
| CN102400993A (en) * | 2011-02-22 | 2012-04-04 | 汪砚秋 | Anti-loosening bolt for T-shaped nail |
| CN207989498U (en) * | 2017-09-25 | 2018-10-19 | 罗兵 | Tenon nut |
| CN209100458U (en) * | 2018-11-29 | 2019-07-12 | 赵复亮 | Anti-loose fastener |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20191231 |
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| RJ01 | Rejection of invention patent application after publication |