CN219827423U - Bolt locking structure - Google Patents
Bolt locking structure Download PDFInfo
- Publication number
- CN219827423U CN219827423U CN202320273034.2U CN202320273034U CN219827423U CN 219827423 U CN219827423 U CN 219827423U CN 202320273034 U CN202320273034 U CN 202320273034U CN 219827423 U CN219827423 U CN 219827423U
- Authority
- CN
- China
- Prior art keywords
- bolt
- notch
- locking
- main
- main nut
- 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.)
- Active
Links
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Landscapes
- Connection Of Plates (AREA)
- Bolts, Nuts, And Washers (AREA)
Abstract
The utility model discloses a bolt locking structure, which comprises a main bolt and a main nut which are mutually matched and screwed on a fastening connecting piece; a notch is formed in at least one side surface of the main nut; the top surface of the main nut is opposite to the notch, at least two small threaded holes are formed in the top surface of the main nut, and the small threaded holes are communicated with the notch; and a locking bolt is screwed at the small threaded hole. The bolt locking structure is tightly propped by the small locking bolt, is not tightly pressed, can control the main bolt to be loose, and can also prevent the small bolt from loosening by the same principle; the bolt locking knot has good fastening effect, and can be repeatedly used with good economical efficiency.
Description
Technical Field
The utility model particularly relates to a bolt locking structure, and belongs to the technical field of bolt fastening devices.
Background
In the prior art, the bolts and nuts are matched and screwed to fix to realize the fastening and mounting of the parts; in the prior art, a self-locking nut or a thread coating is used for a fastening anti-loosening structure; the two locking effects are good, but the locking effect is obviously reduced when the self-locking nut is used for the second time after being used for the first time, and the self-locking nut cannot be used repeatedly in general; the coating screw thread glue is inconvenient to detach, and needs to be coated again for secondary use.
Disclosure of Invention
In order to solve the problems, the utility model provides a bolt locking structure which is tightly pressed by a small locking bolt, not tightly pressed, can control the main bolt to be loose, and can also prevent the small bolt from loosening by the same principle; the bolt locking knot has good fastening effect, and can be repeatedly used with good economical efficiency.
The bolt locking structure comprises a main bolt and a main nut which are mutually matched and screwed on a fastening connecting piece; a notch is formed in at least one side surface of the main nut; the top surface of the main nut is opposite to the notch, at least two small threaded holes are formed in the top surface of the main nut, and the small threaded holes are communicated with the notch; a locking bolt is screwed at the small threaded hole; according to the bolt locking structure, the fastening principle is that the notch is propped against deformation by the fastening bolt, so that the deformation of the internal threads of the top surface of the main nut is influenced, the purpose of locking the bolt is achieved, and the screw deformation is caused by amplifying the tiny deformation of the locking bolt once.
Further, the locking bolt is tightly propped against the bottom surface of the notch until the upper edge of the notch is deformed.
Compared with the prior art, the bolt locking structure has the following advantages:
1. the bolt locking structure has good fastening effect, can be repeatedly used and has good economy; when the secondary use is needed, the locking bolt is screwed down, the notch on the top surface of the main nut is knocked to be parallel to the top surface, then the main bolt and the main nut are unscrewed to separate the main bolt and the main nut, and when the secondary use is carried out, the notch is required to deform by the locking bolt to be larger than the first fastening amplitude;
2. the locking bolt (small bolt) is used for pushing, not pressing, so that the cost is low and the structure is simple; meanwhile, the main bolt can be controlled to be loose, and the small bolt can be prevented from loosening by the same principle; the main reason for the looseness prevention of the small bolt is the elastic deformation of the large bolt and the pressing force on the small bolt; thus, the mutual locking of the big bolt and the small bolt is realized; the basic principle of the looseness prevention is that the thread cannot be screwed due to the change of the thread pitch.
Drawings
Fig. 1 is a schematic view of the overall structure of the main nut of the present utility model.
Fig. 2 is a schematic cross-sectional structure of the main nut of the present utility model at a small threaded hole.
Fig. 3 is a schematic view of a main bolt and main nut fitting structure of the present utility model.
Fig. 4 is a schematic view of the assembled whole structure of the present utility model.
Detailed Description
Examples
The bolt locking structure as shown in fig. 1 to 4 comprises a main bolt 1 and a main nut 2 which are mutually matched and screwed on a fastening connecting piece A; at least one side surface of the main nut 2 is provided with a notch 21; at least two small threaded holes 22 are formed in the top surface of the main nut 2 opposite to the notch, and the small threaded holes 22 are communicated with the notch 21; the small threaded hole 22 is screwed with a locking bolt 3; according to the bolt locking structure, the fastening principle is that the notch is propped against deformation by the fastening bolt, so that the deformation of the internal threads of the top surface of the main nut is influenced, the purpose of locking the bolt is achieved, and the screw deformation is caused by amplifying the tiny deformation of the locking bolt once.
The locking bolt and the bottom surface of the notch are tightly propped against the upper edge of the notch to deform.
The above embodiments are merely preferred embodiments of the present utility model, and all changes and modifications that come within the meaning and range of equivalency of the structures, features and principles of the utility model are therefore intended to be embraced therein.
Claims (2)
1. A bolt locking structure comprises a main bolt and a main nut which are mutually matched and screwed on a fastening connecting piece; the method is characterized in that: a notch is formed in at least one side surface of the main nut; the top surface of the main nut is opposite to the notch, at least two small threaded holes are formed in the top surface of the main nut, and the small threaded holes are communicated with the notch; and a locking bolt is screwed at the small threaded hole.
2. The bolt locking structure according to claim 1, wherein: the locking bolt is tightly propped against the bottom surface of the notch until the upper edge of the notch is deformed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320273034.2U CN219827423U (en) | 2023-02-21 | 2023-02-21 | Bolt locking structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320273034.2U CN219827423U (en) | 2023-02-21 | 2023-02-21 | Bolt locking structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219827423U true CN219827423U (en) | 2023-10-13 |
Family
ID=88252351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320273034.2U Active CN219827423U (en) | 2023-02-21 | 2023-02-21 | Bolt locking structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219827423U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117847073A (en) * | 2024-03-03 | 2024-04-09 | 沈阳晋亿紧固件技术开发有限公司 | High-strength locknut |
| CN118471733A (en) * | 2024-07-15 | 2024-08-09 | 四川九天真空科技有限公司 | Fixing mechanism, pressure switch and pressure switch preparation method |
-
2023
- 2023-02-21 CN CN202320273034.2U patent/CN219827423U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117847073A (en) * | 2024-03-03 | 2024-04-09 | 沈阳晋亿紧固件技术开发有限公司 | High-strength locknut |
| CN118471733A (en) * | 2024-07-15 | 2024-08-09 | 四川九天真空科技有限公司 | Fixing mechanism, pressure switch and pressure switch preparation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |