CN221299775U - Self-locking fastener - Google Patents
Self-locking fastener Download PDFInfo
- Publication number
- CN221299775U CN221299775U CN202323269539.0U CN202323269539U CN221299775U CN 221299775 U CN221299775 U CN 221299775U CN 202323269539 U CN202323269539 U CN 202323269539U CN 221299775 U CN221299775 U CN 221299775U
- Authority
- CN
- China
- Prior art keywords
- nut
- self
- locking fastener
- post
- annular boss
- 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.)
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Links
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 9
- 229910052782 aluminium Inorganic materials 0.000 abstract description 9
- 238000004146 energy storage Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000011900 installation process Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Landscapes
- Insertion Pins And Rivets (AREA)
Abstract
The utility model discloses a self-locking fastener capable of being directly sealed and locked in a mounting hole, which comprises the following components: lock nut and nut post, the nut post on be provided with lock nut matched with external screw thread, the bottom of nut post is provided with annular boss, is provided with a plurality of bellied tooth portion that makes progress along circumference on the annular boss. The self-locking fastener is particularly suitable for repairing the mounting holes exposed by falling of various fasteners such as the pad column nuts and the like from the aluminum piece plate on site, so that the corresponding box body forms a closed shell again.
Description
Technical Field
The utility model relates to a fastener, in particular to a self-locking fastener.
Background
At present, sealing nuts can be manufactured on aluminum plates in the industries of automobile industry, new energy industry, liquid cooling energy storage and the like, namely: and pressing and riveting the pad column nut on the aluminum plate. In the actual use process, the press-riveted pad column nut can loosen and even fall off when encountering abnormal collision, and is difficult to remedy when encountering the situation at present, because the material of the pad column nut is usually stainless steel or carbon steel and is different from an aluminum plate, the pad column nut cannot be fixed by welding, and the original pushing torque force cannot be achieved at all because the pad column nut is press-riveted again in an original position mounting hole. Therefore, the whole aluminum sheet member is generally discarded, resulting in unnecessary loss.
Disclosure of utility model
The technical problems to be solved by the utility model are as follows: a self-locking fastener is provided that can be sealed directly in a mounting hole.
In order to solve the technical problems, the utility model adopts the following technical scheme: a self-locking fastener comprising: lock nut and nut post, the nut post on be provided with lock nut matched with external screw thread, the bottom of nut post is provided with annular boss, is provided with a plurality of bellied tooth portion that makes progress along circumference on the annular boss.
In one preferred embodiment, in the self-locking fastener, all the teeth are uniformly arranged on the annular boss.
In one preferred embodiment, in the self-locking fastener, an internal threaded hole is formed inward in the top end face of the nut post.
In one preferred embodiment, in the self-locking fastener, the lock nut is a hexagonal nut.
The beneficial effects of the utility model are as follows:
1. The self-locking fastener can directly insert the nut column in the mounting hole, and when the locking nut is tightened, the tooth part on the annular boss of the nut column is embedded and locked in the edge of the mounting hole to form a seal, so that the self-locking fastener is very simple and convenient to install, and the sealing grade can reach IP67; moreover, the whole installation process is safe without welding.
2. The inner thread is arranged at the top end of the nut post, so that the nut post is equivalent to a pad post nut, and the whole aluminum plate piece is not scrapped due to loosening or falling of the pad post nut, thereby avoiding unnecessary waste.
Drawings
FIG. 1 is a schematic view of the installation structure of a self-locking fastener according to the present utility model.
Fig. 2 is an exploded view of the mounting structure of the self-locking fastener of the present utility model.
FIG. 3 is a schematic cross-sectional view of the mounting structure of the self-locking fastener of the present utility model.
Fig. 4 is a partial structural view of a liquid-cooled tank.
Fig. 5 is an enlarged schematic view of the portion a in fig. 4.
The reference numerals in fig. 1 to 5 are respectively: 1. the nut comprises a nut post 10, an annular boss 100, a tooth part 11, an internal threaded hole 12, an external thread 2, an aluminum plate 3 and a locking nut.
Detailed Description
Specific embodiments of a self-locking fastener according to the present utility model are described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 3, a self-locking fastener according to the present utility model includes: the nut column 1 is provided with external threads 12 matched with the locking nut 3, the bottom of the nut column 1 is provided with an annular boss 10, and the annular boss 10 is uniformly provided with a plurality of upwards-protruding tooth parts 100 (also called flower teeth) along the circumferential direction; an internal threaded hole 11 is formed in the top end face of the nut post 1. In this embodiment, the lock nut 3 is a hexagonal nut.
The installation process of the self-locking fastener of the utility model is described below by taking a liquid-cooled energy storage box as an example, and when the washer post nut at the A position shown in fig. 4 and 5 is removed, the washer post nut can be directly maintained on site, and the method comprises the following specific steps: after reaming the detached mounting hole to the diameter of the nut post 1 by using a pistol drill, penetrating the nut post 1 into the corresponding enlarged mounting hole, pre-tightening the inside of the nut post 3 by using a locking nut 3, then rotating the locking nut 3 by using a hexagonal wrench, extruding the tooth part 100 at the bottom of the nut post 1 into the aluminum plate 2, so that the bottom of the nut post 1 is leveled with the bottom of the aluminum plate 2, and recovering the liquid cooling energy storage box after maintenance by using the self-locking fastener according to the utility model as shown in the initial stage (see fig. 4 and 5).
The foregoing description is only illustrative of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, but rather the equivalent variations and modifications in shape, construction, characteristics and spirit according to the scope of the claims should be construed to be included in the scope of the claims.
Claims (4)
1. A self-locking fastener comprising: lock nut and nut post, the nut post on be provided with lock nut matched with external screw thread, its characterized in that, the bottom of nut post is provided with annular boss, is provided with a plurality of bellied tooth portion upwards along circumference on the annular boss.
2. A self-locking fastener as defined in claim 1 wherein all of the teeth are uniformly disposed on said annular boss.
3. The self-locking fastener of claim 1, wherein the top end face of the nut post is internally threaded.
4. A self-locking fastener as claimed in claim 1, 2 or 3 wherein the locking nut is a hex nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323269539.0U CN221299775U (en) | 2023-12-01 | 2023-12-01 | Self-locking fastener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323269539.0U CN221299775U (en) | 2023-12-01 | 2023-12-01 | Self-locking fastener |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221299775U true CN221299775U (en) | 2024-07-09 |
Family
ID=91735917
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323269539.0U Active CN221299775U (en) | 2023-12-01 | 2023-12-01 | Self-locking fastener |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221299775U (en) |
-
2023
- 2023-12-01 CN CN202323269539.0U patent/CN221299775U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |