CN212536399U - Locking bolt nut subassembly that takes off - Google Patents
Locking bolt nut subassembly that takes off Download PDFInfo
- Publication number
- CN212536399U CN212536399U CN202021082319.0U CN202021082319U CN212536399U CN 212536399 U CN212536399 U CN 212536399U CN 202021082319 U CN202021082319 U CN 202021082319U CN 212536399 U CN212536399 U CN 212536399U
- Authority
- CN
- China
- Prior art keywords
- nut
- screw
- bolt
- hole
- section
- 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
Images
Landscapes
- Connection Of Plates (AREA)
Abstract
The utility model provides an anti-loosening bolt and nut assembly, includes bolt, first nut and second nut, the bolt includes bolt head and screw rod, the screw rod is the echelonment, including locking section and firm section, the diameter of locking section is greater than firm section diameter, be equipped with respectively on locking section and the firm section with first screw thread and the second screw thread of first nut, second nut internal thread looks adaptation, be equipped with the end tooth flange between first nut and the second nut, be equipped with the oblique flank of tooth on the upper and lower terminal surface of end tooth flange respectively, the up end of first nut with be equipped with respectively on the lower terminal surface of second nut with the occlusal surface of oblique flank of tooth looks adaptation, the tip of screw rod still is equipped with anti-loosening piece.
Description
Technical Field
The utility model belongs to the technical field of mechanical fastening, concretely relates to locking bolt and nut subassembly that takes off.
Background
The bolt is a fastener consisting of a bolt head and a screw (a cylinder with external threads) and is used for fastening and connecting two mechanical equipment parts with through holes. Bolts are essential in daily life and in the technical field of sheet metal and machine tool machining. Traditional bolt time has long afterwards because reasons such as corrosion or vibrations of metal surface, the nut is not hard up often, if do not discover in time to overhaul, leads to connecting insecure or bolt and nut to drop, takes place the incident easily, causes the loss.
Therefore, the above problems are problems that should be considered and solved in the design and use of the bolt and nut.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model aims to solve the technical problem that a locking bolt nut subassembly that takes off is provided.
The technical solution of the utility model is that: the utility model provides an anti-loosening bolt and nut assembly, includes bolt, first nut and second nut, the bolt includes bolt head and screw rod, the screw rod is the echelonment, including locking section and firm section, the diameter of locking section is greater than firm section diameter, be equipped with respectively on locking section and the firm section with first screw thread and the second screw thread of first nut, second nut internal thread looks adaptation, be equipped with the end tooth flange between first nut and the second nut, be equipped with the oblique flank of tooth on the upper and lower terminal surface of end tooth flange respectively, the up end of first nut with be equipped with respectively on the lower terminal surface of second nut with the occlusal surface of oblique flank of tooth looks adaptation, the tip of screw rod still is equipped with anti-loosening piece.
The utility model discloses a further improvement lies in: the end tooth flange is sleeved on the locking section, and an internal thread matched with the locking section is arranged on the end tooth flange.
The utility model discloses a further improvement lies in: the screw hole of the second nut is a stepped hole, the large hole is a unthreaded hole, the small hole is a screw hole, the large hole is sleeved on the fastening section, and the small hole is screwed on the stabilizing section.
The utility model discloses a further improvement lies in: the anti-loosening part comprises a screw, an inner hole is formed in the end portion of the screw, threads are arranged in the inner hole, the screw is screwed into the inner hole through the threads and is installed in a matched mode with the screw, and the diameter of the end face of the screw is larger than the diameter of the small hole of the second nut.
The utility model discloses a further improvement lies in: and a supporting cover is arranged below the end part of the screw, the supporting cover is sleeved on the stabilizing section, and a rubber layer is arranged on the inner wall of the supporting cover.
The utility model discloses a further improvement lies in: the rotating directions of the first thread and the second thread are arranged in opposite directions.
Compared with the prior art, the beneficial effects of the utility model are that: its simple structure, set up opposite direction's dextrorotation and levogyration screw thread on the echelonment screw rod, first nut and second nut are connected in the cooperation respectively, two kinds of rotations are to opposite two nuts and are mutually supported and play locking effect, it carries out intermeshing to set up the end tooth flange at the link of two nuts, the locking force between two nuts has been strengthened greatly, the tip at the screw rod sets up locking piece, even the nut takes place to become flexible can not withdraw from the screw rod yet, this structure makes the connection of bolt and nut firm, the problem that produces the bolt looseness because of external disturbance factor has been solved, the security performance of product is improved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application.
In the drawings:
fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view of the structure of the middle bolt of the present invention
Fig. 3 is a schematic structural view of a second nut of the present invention;
the attached drawings are as follows:
1-bolt, 2-first nut, 3-second nut, 4-bolt head, 5-locking section, 6-stabilizing section, 7-first thread, 8-second thread, 9-end tooth flange, 10-inclined tooth surface, 11-occlusal surface, 12-large hole, 13-small hole, 14-screw, 15-inner hole, 16-supporting cover and 17-rubber layer.
Detailed Description
Embodiments of the present application will be described in detail with reference to the drawings and examples, so that how to implement technical means to solve technical problems and achieve technical effects of the present application can be fully understood and implemented.
As shown in the drawings, the present embodiment provides an anti-loosening bolt-nut assembly, including bolt 1, first nut 2 and second nut 3, bolt 1 includes bolt head 4 and screw rod, the screw rod is the echelonment, including the unanimous locking section 5 of axis and firm section 6, the diameter of locking section 5 is greater than firm section diameter, be equipped with respectively on locking section 5 and the firm section 6 with first screw thread 7 and second screw thread 8 of first nut 2, the 3 internal thread looks adaptations of second nut, the direction of rotation of first screw thread 7 and second screw thread 8 is reverse setting, promptly first nut 2 with the internal thread of second nut 3 also is reverse setting. Be equipped with end tooth flange 9 between first nut 2 and the second nut 3, be equipped with oblique flank of tooth 10 on the upper and lower terminal surface of end tooth flange 9 respectively, the up end of first nut 2 with be equipped with respectively on the lower terminal surface of second nut 3 with the occlusal surface 11 of oblique flank of tooth 10 looks adaptation, end tooth flange 9 cover is established on the locking section 5, and be equipped with on the end tooth flange 9 with the internal thread of first screw thread 7 looks adaptation on the locking section 5, the screw of second nut 3 is the shoulder hole, and macropore 12 is the unthreaded hole, and aperture 13 is the screw, in 5 upper portions of locking section can partly insert macropore 12, aperture 13 spiro union is in on the stable section 6. The tip of its firm section 6 of screw rod still is equipped with locking piece, locking piece includes screw 14, 6 tip of firm section is equipped with hole 15, be equipped with the screw thread in the hole 15, screw 14 is installed through the screw thread screw in hole 15 with the screw rod cooperation, the terminal surface diameter of screw 14 is greater than the aperture 13 diameter of second nut 3. An integrally formed supporting cover 16 is arranged below the end part of the screw 14, the supporting cover 16 is sleeved on the stabilizing section 6, and a rubber layer 17 is arranged on the inner wall of the supporting cover 16, so that the friction force between the supporting cover 16 and the stabilizing section 6 is improved, and the screw is prevented from loosening.
Compared with the prior art, the beneficial effect of this embodiment is: its simple structure, set up opposite direction's dextrorotation and levogyration screw thread on the echelonment screw rod, first nut and second nut are connected in the cooperation respectively, two kinds of rotations are to opposite two nuts and are mutually supported and play locking effect, it carries out intermeshing to set up the end tooth flange at the link of two nuts, the locking force between two nuts has been strengthened greatly, the tip at the screw rod sets up locking piece, even the nut takes place to become flexible can not withdraw from the screw rod yet, this structure makes the connection of bolt and nut firm, the problem that produces the bolt looseness because of external disturbance factor has been solved, the security performance of product is improved.
While the foregoing description shows and describes several preferred embodiments of the invention, it is to be understood, as noted above, that the invention is not limited to the forms disclosed herein, but is not intended to be exhaustive or to exclude other embodiments and may be used in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. But that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention, which is to be limited only by the claims appended hereto.
Claims (6)
1. The utility model provides an anti-loosening bolt and nut subassembly which characterized in that: the bolt comprises a bolt head and a screw rod, the screw rod is in a step shape and comprises a locking section and a stabilizing section, the diameter of the locking section is larger than that of the stabilizing section, a first thread and a second thread which are matched with the inner threads of the first nut and the second nut are arranged on the locking section and the stabilizing section respectively, an end tooth flange is arranged between the first nut and the second nut, the upper end surface and the lower end surface of the end tooth flange are provided with oblique tooth surfaces respectively, the upper end surface of the first nut and the lower end surface of the second nut are provided with occlusion surfaces matched with the oblique tooth surfaces respectively, and the end part of the screw rod is further provided with an anti-loosening piece.
2. The anti-loosening bolt and nut assembly according to claim 1, wherein: the end tooth flange is sleeved on the locking section, and an internal thread matched with the locking section is arranged on the end tooth flange.
3. The anti-loosening bolt and nut assembly according to claim 1, wherein: the screw hole of the second nut is a stepped hole, the large hole is a unthreaded hole, the small hole is a screw hole, the large hole is sleeved on the locking section, and the small hole is screwed on the stabilizing section.
4. A locking bolt and nut assembly as defined in claim 3 wherein: the anti-loosening part comprises a screw, an inner hole is formed in the end portion of the screw, threads are arranged in the inner hole, the screw is screwed into the inner hole through the threads and is installed in a matched mode with the screw, and the diameter of the end face of the screw is larger than the diameter of the small hole of the second nut.
5. The anti-loosening bolt and nut assembly according to claim 4, wherein: and a supporting cover is arranged below the end part of the screw, the supporting cover is sleeved on the stabilizing section, and a rubber layer is arranged on the inner wall of the supporting cover.
6. The anti-loosening bolt and nut assembly according to claim 1, wherein: the rotating directions of the first thread and the second thread are arranged in opposite directions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021082319.0U CN212536399U (en) | 2020-06-12 | 2020-06-12 | Locking bolt nut subassembly that takes off |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021082319.0U CN212536399U (en) | 2020-06-12 | 2020-06-12 | Locking bolt nut subassembly that takes off |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212536399U true CN212536399U (en) | 2021-02-12 |
Family
ID=74547968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021082319.0U Active CN212536399U (en) | 2020-06-12 | 2020-06-12 | Locking bolt nut subassembly that takes off |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212536399U (en) |
-
2020
- 2020-06-12 CN CN202021082319.0U patent/CN212536399U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1987134A (en) | Threaded connection anti-loose fastener | |
| CN212131033U (en) | Anti-drop loose's big bolt of axial locking | |
| CN212657113U (en) | Self-locking nut assembly | |
| CN212536399U (en) | Locking bolt nut subassembly that takes off | |
| CN211901241U (en) | Positive and negative self-locking nut device | |
| CN212717590U (en) | Hexagonal head combined screw with anti-loose teeth | |
| CN213541027U (en) | Anti-loosening bolt assembly | |
| CN216407444U (en) | Single nut locking structure | |
| CN211820309U (en) | Anti-loosening bolt | |
| CN212455169U (en) | Novel check bolt assembly | |
| CN212337867U (en) | Bolt and nut connecting structure | |
| CN111779751A (en) | Locking bolt structure that moves | |
| CN213808417U (en) | Anti-loose connecting piece | |
| CN214304808U (en) | Improved anti-loose bolt | |
| CN220769904U (en) | General anti-loss fastening device | |
| CN216077912U (en) | Anti-loose combination bolt | |
| CN219413206U (en) | Lock bolt component | |
| CN214007736U (en) | Clamping type anti-loosening fastening assembly | |
| CN214837711U (en) | Eccentric locknut | |
| CN221074932U (en) | Fastener capable of saving moment | |
| CN213381286U (en) | Special tool for single-side connecting bolt | |
| CN218980731U (en) | Looseness-preventing mechanism of pressure pipeline filter shell | |
| CN215720091U (en) | Gear groove anti-drop bolt for aviation | |
| CN214788492U (en) | Anti-loose nut | |
| CN220151711U (en) | Nut self-locking anti-loose flange bolt |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |