CN209818497U - Flange surface self-locking bolt - Google Patents
Flange surface self-locking bolt Download PDFInfo
- Publication number
- CN209818497U CN209818497U CN201920371678.9U CN201920371678U CN209818497U CN 209818497 U CN209818497 U CN 209818497U CN 201920371678 U CN201920371678 U CN 201920371678U CN 209818497 U CN209818497 U CN 209818497U
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- flange
- bolt
- locking bolt
- threaded rod
- flange plate
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Abstract
The utility model discloses a flange face self-locking bolt, which comprises a bolt head, a flange plate and a threaded rod, wherein the bolt head, the flange plate and the threaded rod are of an integrated structure, the flange plate is of a hollow conical cap structure surrounding the joint of the bolt head and the bolt rod, and an annular groove is arranged at the joint of the flange plate and the bolt head; and the threaded rod is provided with an external thread. The utility model discloses the flange face self-locking bolt who obtains, after screwing up, by the elastic force that the ring flange produced on the axial tie bolt, make bolt external screw thread top tight on the nut of accessory or the internal thread loading end in the installation screw to produce great frictional force in order to reach the purpose of locking bolt, because the ring flange possesses certain elasticity simultaneously, consequently also has better resistance to the operational environment of vibrations.
Description
Technical Field
The utility model relates to a fastener, especially a flange face self-locking bolt.
Background
Threaded connection is the most common connected mode on present machine equipment, especially in the automobile manufacturing trade, because the vehicle operation is usually accompanied vibrations, has higher requirement to the locking design of screw thread, and current screw fastening often adopts elastic washer and bolt to cooperate, because part quantity is more, has the inconvenient condition of installation, in order to improve the installation effectiveness, needs to develop a connection reliably, installs quick screw fastening part.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects of the prior art and providing a flange surface self-locking bolt which is convenient to install and reliable in connection.
In order to achieve the purpose, the flange face self-locking bolt designed by the utility model comprises a bolt head, a flange plate and a threaded rod, wherein the bolt head, the flange plate and the threaded rod are of an integrated structure, the flange plate is of a hollow conical cap structure surrounding the joint of the bolt head and the bolt rod, and an annular groove is arranged at the joint of the flange plate and the bolt head; and the threaded rod is provided with an external thread.
In order to further secure the locking function, a flange is provided on the crest side of the external thread.
In order to reduce stress concentration and prolong the service life, the bottom of the annular groove is in a circular arc shape.
In order to facilitate installation, deformation grooves are uniformly distributed at the edge of the flange plate.
In order to prolong the service life of the bolt and ensure reliable locking, an elastic ring made of elastic materials is arranged in the annular groove.
The utility model discloses the flange face self-locking bolt who obtains, after screwing up, by the elastic force that the ring flange produced on the axial tie bolt, make bolt external screw thread top tight on the nut of accessory or the internal thread loading end in the installation screw to produce great frictional force in order to reach the purpose of locking bolt, because the ring flange possesses certain elasticity simultaneously, consequently also has better resistance to the operational environment of vibrations.
Drawings
Fig. 1 is a schematic structural view of embodiment 1 of the flange surface self-locking bolt of the present invention;
FIG. 2 is a thread structure of embodiment 1;
FIG. 3 is an assembly diagram of embodiment 1;
fig. 4 is an isometric view of embodiment 2 of the flange face self-locking bolt of the present invention;
FIG. 5 is a sectional view of embodiment 2.
In the figure: the bolt head 1, the flange plate 2, the threaded rod 3, the external thread 4, the annular groove 5, the internal thread 6, the deformation groove 7, the elastic ring 8 and the flange 30.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Example 1:
the flange face self-locking bolt described in this embodiment, as shown in fig. 1, includes a bolt head 1, a flange plate 2, and a threaded rod 3, where the bolt head 1, the flange plate 2, and the threaded rod 3 are an integral structure, the flange plate 2 is a hollow conical cap structure surrounding a joint between the bolt head 1 and the bolt rod, and an annular groove 5 is provided at a joint between the flange plate 2 and the bolt head 1; and the threaded rod 3 is provided with an external thread 4.
In order to further secure the locking function, a flange 30 is provided on the crest side of the external thread 4, as shown in fig. 2.
In order to reduce stress concentration and prolong service life, as shown in fig. 1, the bottom of the annular groove 5 is in a circular arc shape.
In the actual working process, as shown in fig. 3, in the process of screwing the bolts, the flange 2 of the self-locking bolt is gradually attached to the surface of the connecting piece, at the moment, the flange 2 is elastically deformed, after the bolts are screwed, the inner side of the original hollow conical structure of the flange 2 is attached to the surface of the connecting piece, at the moment, the flange 2 forms resultant force F in the axial direction of the bolts due to the elastic deformation, so that the flange 30 on the external thread 4 of the bolts is tightly propped against the internal thread 6 of the fitting, as shown in fig. 2, and the self-locking and anti-loosening effects are achieved.
The flange face self-locking bolt provided by the embodiment is convenient to install and reliable in locking, and has better resistance to the vibration working environment due to the fact that the flange plate 2 has certain elasticity.
Example 2:
in the flange surface self-locking bolt described in this embodiment, as shown in fig. 4, in addition to the features described in embodiment 1, for the convenience of installation, deformation grooves 7 are uniformly distributed at the edge of the flange 2.
In order to prolong the service life of the bolt and ensure reliable locking, as shown in fig. 5, an elastic ring 8 made of elastic material is arranged in the annular groove 5.
The flange face self-locking bolt that this embodiment provided sets up the groove of quantitative change less on ring flange 2, has alleviateed the stress concentration on the ring flange 2, has prolonged its life, has reduced the installation degree of difficulty, and embeds elastic ring 7 in ring channel 5, has further increased ring flange 2's elastic force to make the frictional force increase between external screw thread 4 and the internal thread 6, improved the auto-lock ability.
Claims (7)
1. A flange face self-locking bolt comprises a bolt head (1), a flange plate (2) and a threaded rod (3), and is characterized in that the bolt head (1), the flange plate (2) and the threaded rod (3) are of an integrated structure, the flange plate (2) is of a hollow conical cap structure surrounding the joint of the bolt head (1) and the bolt rod, and an annular groove (5) is formed in the joint of the flange plate (2) and the bolt head (1); and the threaded rod (3) is provided with an external thread (4).
2. The flange face self-locking bolt according to claim 1, characterized in that a flange (30) is provided on the crest side of the external thread (4).
3. The self-locking bolt of a flange surface according to claim 1 or 2, characterized in that the bottom of the annular groove (5) is shaped as a circular arc.
4. The flange face self-locking bolt according to claim 1 or 2, characterized in that the flange (2) is provided at its edge with uniformly distributed deformation grooves (7).
5. The flange face self-locking bolt according to claim 3, characterized in that the flange (2) is provided at its edge with uniformly distributed deformation grooves (7).
6. The self-locking bolt of a flange surface according to claim 1 or 2, characterized in that an elastic ring (8) made of elastic material is arranged in the annular groove (5).
7. The flange face self-locking bolt according to claim 3, characterized in that an elastic ring (8) made of elastic material is arranged in the annular groove (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920371678.9U CN209818497U (en) | 2019-03-22 | 2019-03-22 | Flange surface self-locking bolt |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920371678.9U CN209818497U (en) | 2019-03-22 | 2019-03-22 | Flange surface self-locking bolt |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209818497U true CN209818497U (en) | 2019-12-20 |
Family
ID=68876839
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920371678.9U Active CN209818497U (en) | 2019-03-22 | 2019-03-22 | Flange surface self-locking bolt |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209818497U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112483532A (en) * | 2020-10-23 | 2021-03-12 | 北京中清能发动机技术有限公司 | Anti-loosening screw bolt and combined crankshaft and equipment applying same |
-
2019
- 2019-03-22 CN CN201920371678.9U patent/CN209818497U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112483532A (en) * | 2020-10-23 | 2021-03-12 | 北京中清能发动机技术有限公司 | Anti-loosening screw bolt and combined crankshaft and equipment applying same |
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Legal Events
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| GR01 | Patent grant | ||
| GR01 | Patent grant |