CN219888459U - Plastic locking type anti-loosening nut - Google Patents
Plastic locking type anti-loosening nut Download PDFInfo
- Publication number
- CN219888459U CN219888459U CN202321283143.9U CN202321283143U CN219888459U CN 219888459 U CN219888459 U CN 219888459U CN 202321283143 U CN202321283143 U CN 202321283143U CN 219888459 U CN219888459 U CN 219888459U
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- China
- Prior art keywords
- nut
- plastic deformation
- locking
- plastic
- hole
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- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
Landscapes
- Bolts, Nuts, And Washers (AREA)
Abstract
The utility model provides a plastic locking formula locknut, it includes the nut body, the nut body includes normal nut portion, plastic deformation locking portion, gasket portion, and normal nut portion sets up in plastic deformation locking portion's top, and gasket portion sets up in plastic deformation locking portion's below. The plastic deformation locking part is arranged at one end of the body, and the plastic deformation locking part is irreversibly and plastically deformed by external force when in use, and can achieve self-locking after being tightly matched with the screw after being deformed, thereby preventing the nut from loosening or losing. Because only the plastic deformation locking part is adopted, the structure is simple and reliable, the processing cost of the anti-loose nut is reduced, the working reliability of the nut is improved, and the nut can be kept in a fastened state when being used in a strong vibration environment.
Description
Technical Field
The utility model relates to the technical field of fasteners, in particular to a plastic locking type anti-loose nut.
Background
The nut is a nut, which is a part screwed with a bolt or a screw to perform a fastening function. All manufacturing machines must use this element, which, depending on the material, is classified into carbon steel, stainless steel, nonferrous metals (such as copper) and the like.
Nuts are widely used as conventional detachable fastening parts for mechanical equipment, power and mechanical components in various fields. The reasons such as vibration and impact of mechanical equipment during operation can influence the tightness and reliability of threaded connection, so that the phenomena of loosening and falling of nuts can often occur, and mechanical accidents, even serious safety accidents, are caused. In general, the double nuts are used for fastening to prevent the nuts from loosening in engineering, but the double nuts are only thickened by a single nut, so that the locking and anti-loose effects cannot be really achieved, and the cost is increased. Therefore, the method of preventing the nut from loosening automatically can be truly realized by which simple and easy method to ensure the reliability of the connecting structure is always a technical problem discussed by all the technicians in the related field.
Disclosure of Invention
The utility model aims to overcome the defects and shortcomings of the prior art, provides a plastic locking type anti-loosening nut, and solves the problem of how to adopt a simple and effective method in the prior art, and the anti-loosening problem of the nut is achieved under the condition that no additional parts are added.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a plastic locking formula locknut, it includes nut body 1, nut body 1 includes normal nut portion 2, plastic deformation locking portion 3, gasket portion 4, and normal nut portion 2 sets up in plastic deformation locking portion 3's top, and gasket portion 4 sets up in plastic deformation locking portion 3's below.
The inside of the normal nut portion 2 is provided with a threaded cavity 21. The threaded cavity 21 is intended to be connected to the screw 5.
The plastic deformation locking part 3 is provided inside with a through hole 31.
The threaded cavity 21 is communicated with the through hole 31, and the threaded cavity 21 and the through hole 31 penetrate through the nut body 1. The thread cavity 21 communicates with the through hole 31 so that the screw 5 can penetrate the nut body 1.
The threaded cavity 21 is coaxially arranged with the through hole 31, and the diameter of the through hole 31 is slightly larger than that of the threaded cavity 21. The diameter of the through hole 31 is slightly larger than the diameter of the threaded cavity 21 so that the plastically deformed locking portion can be embedded in the threads of the bolt 5 when deformed.
The plastic deformation locking part 3 is a soft metal plastic deformation locking part. The use of a soft metal material enables the plastically deformed locking portion 3 to be irreversibly plastically deformed when subjected to a large force.
The nut body 1 is a hexagonal nut.
The thread specification of the thread cavity 21 is the same as that of the screw 5. The screw thread specifications are the same, so that the nut body 1 and the screw 5 can be tightly connected.
The working principle of the utility model is as follows: when the nut body is subjected to larger force, the nut body is in a plastic deformation locking state, the plastic deformation locking part is pressed to bend towards one side of the screw rod and is embedded into the thread of the screw rod to tightly hold the bolt, so that the friction force between the nut body and the bolt is enhanced, and the anti-loosening effect is achieved.
After the technical scheme is adopted, the utility model has the beneficial effects that: the plastic deformation locking part is arranged at one end of the body, and the plastic deformation locking part is irreversibly and plastically deformed by external force when in use, and can achieve self-locking after being tightly matched with the screw after being deformed, thereby preventing the nut from loosening or losing. The locking part is only plastically deformed, so that the structure is simple and reliable, the processing cost of the anti-loose nut is reduced, the working reliability of the nut is improved, and the anti-loose nut with the structure has higher working reliability because the anti-loose nut can keep a self-locking state when being used in a strong vibration environment.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic diagram of the structure of the present utility model;
FIG. 2 is a schematic view of the present utility model in a locked state prior to plastic deformation;
fig. 3 is a schematic view of the present utility model in a locked state after plastic deformation.
Reference numerals illustrate: 1. a nut body; 2. a normal nut portion; 21. a threaded cavity; 3. a plastically deformed locking portion; 31. a through hole; 4. a pad section; 5. and (3) a screw.
Detailed Description
Referring to fig. 1-3, the technical scheme adopted in the specific embodiment is as follows: the utility model provides a plastic locking formula locknut, it includes nut body 1, nut body 1 includes normal nut portion 2, plastic deformation locking portion 3, gasket portion 4, and normal nut portion 2 sets up in plastic deformation locking portion 3's top, and gasket portion 4 sets up in plastic deformation locking portion 3's below. The inside of the normal nut portion 2 is provided with a threaded cavity 21. The threaded cavity 21 is intended to be connected to the screw 5. The plastic deformation locking part 3 is provided inside with a through hole 31. The threaded cavity 21 is communicated with the through hole 31, and the threaded cavity 21 and the through hole 31 penetrate through the nut body 1. The thread cavity 21 communicates with the through hole 31 so that the screw 5 can penetrate the nut body 1. The threaded cavity 21 is coaxially arranged with the through hole 31, and the diameter of the through hole 31 is slightly larger than that of the threaded cavity 21. The diameter of the through hole 31 is slightly larger than the diameter of the threaded cavity 21 so that the plastically deformed locking portion can be inserted into the threads of the bolt when deformed. The thread specification of the thread cavity 21 is the same as that of the screw 5. The screw thread specifications are the same, so that the nut body 1 and the screw 5 can be tightly connected.
The nut body 1 is a hexagonal nut. The edges of the regular hexagonal nuts can unify tools in the installation process, the number of the tools is reduced, the production cost is reduced, and the production efficiency is improved. The plastic deformation locking part 3 is a soft metal plastic deformation locking part. The spring steel is used for manufacturing small springs, and is used for manufacturing locking type anti-loosening nuts, so that the locking type anti-loosening nuts can be determined to have deformation performance on the premise of meeting strength, and locking anti-loosening is realized by using deformation of the locking type anti-loosening nuts.
As shown in fig. 2, when a large force is applied to the nut body 1, the plastic deformation locking part is pressed to bend to one side of the screw 5 and is embedded into the thread of the screw 5, so that the screw is tightly held, the friction force between the screw and the screw is enhanced, and the anti-loosening effect is achieved.
The plastic deformation locking part is arranged at one end of the body, and the plastic deformation locking part is irreversibly and plastically deformed by external force when in use, and can achieve self-locking after being tightly matched with the screw after being deformed, thereby preventing the nut from loosening or losing. The locking part is only plastically deformed, so that the structure is simple and reliable, the processing cost of the anti-loose nut is reduced, the working reliability of the nut is improved, and the anti-loose nut with the structure has higher working reliability because the anti-loose nut can keep a self-locking state when being used in a strong vibration environment. Meanwhile, the damage to the connecting piece is avoided because of only partial slight deformation, and the connecting piece is indirectly protected to a certain extent.
The foregoing is merely illustrative of the present utility model and not restrictive, and other modifications and equivalents thereof may occur to those skilled in the art without departing from the spirit and scope of the present utility model.
Claims (8)
1. A plastic locking type anti-loose nut is characterized in that: the nut comprises a nut body (1), wherein the nut body (1) comprises a normal nut part (2), a plastic deformation locking part (3) and a gasket part (4), the normal nut part (2) is arranged above the plastic deformation locking part (3), and the gasket part (4) is arranged below the plastic deformation locking part (3).
2. A plastic locking locknut as defined in claim 1, wherein: a thread cavity (21) is arranged in the normal nut part (2).
3. A plastic locking locknut as defined in claim 1, wherein: the plastic deformation locking part (3) is internally provided with a through hole (31).
4. A plastic locking locknut as defined in claim 2, wherein: the threaded cavity (21) is communicated with the through hole (31), and the threaded cavity (21) and the through hole (31) penetrate through the nut body (1).
5. A plastic locking locknut as defined in claim 2, wherein: the threaded cavity (21) and the through hole (31) are coaxially arranged, and the diameter of the through hole (31) is slightly larger than that of the threaded cavity (21).
6. A plastic locking locknut as defined in claim 1, wherein: the plastic deformation locking part (3) is a soft metal plastic deformation locking part.
7. A plastic locking locknut as defined in claim 1, wherein: the nut body (1) is a hexagonal nut.
8. A plastic locking locknut as defined in claim 2, wherein: the thread specification of the thread cavity (21) is the same as that of the screw (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321283143.9U CN219888459U (en) | 2023-05-25 | 2023-05-25 | Plastic locking type anti-loosening nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321283143.9U CN219888459U (en) | 2023-05-25 | 2023-05-25 | Plastic locking type anti-loosening nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219888459U true CN219888459U (en) | 2023-10-24 |
Family
ID=88406080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321283143.9U Active CN219888459U (en) | 2023-05-25 | 2023-05-25 | Plastic locking type anti-loosening nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219888459U (en) |
-
2023
- 2023-05-25 CN CN202321283143.9U patent/CN219888459U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |