CN210715490U - Self-locking type check bolt and nut assembly - Google Patents
Self-locking type check bolt and nut assembly Download PDFInfo
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- CN210715490U CN210715490U CN201920718566.6U CN201920718566U CN210715490U CN 210715490 U CN210715490 U CN 210715490U CN 201920718566 U CN201920718566 U CN 201920718566U CN 210715490 U CN210715490 U CN 210715490U
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Abstract
The self-locking anti-loose bolt and nut assembly comprises a bolt and a nut, wherein the bolt 1 comprises a screw rod 1-1 and a screw head 1-2, the screw rod 1-1 is provided with a limiting groove 1-3, and the limiting groove 1-3 is a groove on the side surface of a cylinder of the screw rod 1-1 and is used for fixing an anti-loose stop 3; the nut includes first locknut 2, locking dog 3 and second locknut 4, and first locknut 2, locking dog 3 and second locknut 4 are coaxial annular structure, wherein: the first locknut 2 comprises a conventional nut and a boss 2-1 arranged on the hexagon nut, the boss is of an annular structure coaxial with the hexagon nut, the locknut 3 is coaxially arranged on the nut 2, the inner surface of the locknut is provided with a limiting structure 3-1 matched with the limiting groove 1-2 for use, the second locknut 4 is coaxially arranged on the locknut 3, the inner cylindrical side surface of the second locknut 4 is provided with an internal thread, and the internal thread is used for locking the first locknut 2 and the locknut 3.
Description
Technical Field
The application relates to the technical field of mechanical fasteners, in particular to a self-locking type check bolt and nut assembly.
Background
Threaded fastener is widely used in the fastening connection between various mechanical structures, but in operation because of vibrations, impact etc. influence, cause the bolt not hard up, the nut drops, and fastening force descends, connects major potential safety hazard such as inefficacy. Therefore, the anti-loosening bolt which is good in anti-loosening effect and capable of running stably under various working conditions is very important to design.
SUMMERY OF THE UTILITY MODEL
The application aims to provide a lockbolt nut component for solve in the actual work because the nut that vibrations, impact, variable load etc. arouse is not hard up, the bolt scheduling problem that drops.
In a first aspect, the present application provides a self-locking lockbolt-nut assembly comprising a bolt and a nut, wherein:
the bolt 1 comprises a screw rod 1-1 and a screw head 1-2, the screw rod 1-1 is provided with a limiting groove 1-3, and the limiting groove 1-3 is a groove on the side surface of a cylinder of the screw rod 1-1 and is used for fixing the anti-loosening stop block 3;
the nut includes first locknut 2, locking dog 3 and second locknut 4, first locknut 2 locking dog 3 with second locknut 4 is coaxial annular structure, wherein:
the first locknut 2 comprises a conventional nut and a boss 2-1 arranged on the hexagonal head nut, the boss is in an annular structure coaxial with the hexagonal head nut,
the anti-loosening stop block 3 is coaxially arranged on the nut 2, the inner surface of the anti-loosening stop block is provided with a limiting structure 3-1 matched with the limiting groove 1-3 for use,
and the second locknut 4 is coaxially arranged on the check block 3, and the inner cylindrical side surface of the second locknut 4 is provided with an internal thread for locking the first locknut 2 and the check block 3.
Optionally, the limiting structure 3-1 includes a limiting groove and a fixing pin, the limiting groove is disposed on the inner surface of the anti-loose block, and the fixing pin is used for fixing the bolt and the anti-loose block 3.
Optionally, the limiting structure 3-1 includes a boss fixed on the inner surface of the anti-loosening stopper 3, and the boss is used in cooperation with the limiting groove 1-3.
Optionally, the number of the bosses on the inner surface of the anti-loosening stop block 3 is the same as that of the limiting grooves 1-3.
Optionally, the number of the bosses on the inner surface of the anti-loosening stop block 3 and the number of the limiting grooves 1 to 3 are two.
Optionally, an outer cylindrical surface of the boss of the first locknut 2 is provided with an external thread used in cooperation with the second locknut 4, and the upper end surface of the boss is provided with a first anti-slip tooth 2-2 for increasing the friction force with the anti-loose stop 3.
Optionally, the lower end face of the anti-loose stop block is provided with a second anti-slip tooth 3-2 for increasing the friction force with the first anti-loose nut 2.
Optionally, the conventional nut comprises a hex-head nut.
Compare with current check bolt structure, this application has following advantage: the structure is stable, the anti-loosening effect is good, and the anti-loosening device can be used for connecting large important parts; secondly convenient to detach, this application can not destroy the helicitic texture, can dismantle at any time, can stabilize locking again after applying fastening force in advance.
Drawings
Fig. 1 is a schematic structural view of a self-locking type lockbolt nut assembly provided by the present application;
FIG. 2 is a schematic view of a first locknut provided herein;
FIG. 3 is a schematic view of the anti-loosening stop provided herein;
FIG. 4 is a schematic view of a second locknut provided herein;
the anti-skid bolt comprises a bolt (1), a screw (1-1), a screw head (1-2), a limiting groove (1-3), a first anti-loose nut (2), an anti-loose stop block (3), a second anti-loose nut (4), a boss (2-1), a first anti-skid tooth (2-2), a limiting structure (3-1) and a second anti-skid tooth (3-2).
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
Example one
As shown in fig. 1, a mechanical self-locking anti-loose bolt and nut assembly comprises a bolt 1, wherein the bolt comprises a screw rod 1-1, a screw head 1-2 and a limiting groove 1-3; the screw is sleeved with a first locknut 2, the head of the first locknut 2 is provided with a boss 2-1, the boss is provided with external threads, and the upper end face of the boss is provided with first anti-skid teeth 2-2; the screw 1-1 is sleeved with a locking stop 3, the inner surface of the locking stop 3 is provided with a limiting structure 3-1, and the lower end surface of the locking stop is provided with a second anti-skid tooth 3-2; the locking stop block is sleeved with a second locking nut 4, and the second locking nut 4 is provided with an internal thread.
In this example, after the first locknut 2 fastens the workpiece, the second locknut 4 fastens the lockstop 3 and the first locknut 2, and the first locknut 2 is vibrated in actual working conditions, and when the workpiece is impacted, the first locknut 2 is fastened on the screw rod 1-1 under the combined action of the second locknut 4 and the lockstop 3, so that the workpiece cannot rotate, and a good anti-loosening effect is achieved.
Example two
The application provides a from locking-type check bolt nut subassembly, bolt nut subassembly includes bolt and nut, wherein:
the bolt 1 comprises a screw rod 1-1 and a screw head 1-2, the screw rod 1-1 is provided with a limiting groove 1-3, and the limiting groove 1-3 is a groove on the side surface of a cylinder of the screw rod 1-1 and is used for fixing the anti-loosening stop block 3;
the nut includes first locknut 2, locking dog 3 and second locknut 4, first locknut 2 locking dog 3 with second locknut 4 is coaxial annular structure, wherein:
the first locknut 2 comprises a conventional nut and a boss 2-1 arranged on the hexagonal head nut, the boss is in an annular structure coaxial with the hexagonal head nut,
the anti-loosening stop block 3 is coaxially arranged on the nut 2, the inner surface of the anti-loosening stop block is provided with a limiting structure 3-1 matched with the limiting groove 1-3 for use,
and the second locknut 4 is coaxially arranged on the check block 3, and the inner cylindrical side surface of the second locknut 4 is provided with an internal thread for locking the first locknut 2 and the check block 3.
Optionally, the limiting structure 3-1 includes a limiting groove and a fixing pin, the limiting groove is disposed on the inner surface of the anti-loose block, and the fixing pin is used for fixing the bolt and the anti-loose block 3.
Optionally, the limiting structure 3-1 includes a boss fixed on the inner surface of the anti-loosening stopper 3, and the boss is used in cooperation with the limiting groove 1-3.
Optionally, the number of the bosses on the inner surface of the anti-loosening stop block 3 is the same as that of the limiting grooves 1-3.
Optionally, the number of the bosses on the inner surface of the anti-loosening stop block 3 and the number of the limiting grooves 1 to 3 are two.
Optionally, an outer cylindrical surface of the boss of the first locknut 2 is provided with an external thread used in cooperation with the second locknut 4, and the upper end surface of the boss is provided with a first anti-slip tooth 2-2 for increasing the friction force with the anti-loose stop 3.
Optionally, the lower end face of the anti-loose stop block is provided with a second anti-slip tooth 3-2 for increasing the friction force with the first anti-loose nut 2.
Optionally, the conventional nut comprises a hex-head nut.
To sum up, the application discloses auto-lock check bolt subassembly, including connecting bolt, locknut and locking dog, use this bolt subassembly can guarantee good fastening effect under abominable operating mode, place the nut and rotate.
Claims (8)
1. A self-locking lockbolt-nut assembly, characterized in that the bolt-nut assembly comprises a bolt and a nut, wherein:
the bolt (1) comprises a screw rod (1-1) and a screw head (1-2), the screw rod (1-1) is provided with a limiting groove (1-3), and the limiting groove (1-3) is a groove in the side surface of a cylinder of the screw rod (1-1) and is used for fixing the anti-loosening stop block (3);
the nut comprises a first locknut (2), a lockstop (3) and a second locknut (4), wherein the first locknut (2), the lockstop (3) and the second locknut (4) are coaxial annular structures, and the locknut is characterized in that:
the first locknut (2) comprises a conventional nut and a boss (2-1) arranged on the hexagonal head nut, the boss is of an annular structure coaxial with the hexagonal head nut,
the anti-loosening stop block (3) is coaxially arranged on the nut (2), a limiting structure (3-1) matched with the limiting groove (1-3) is arranged on the inner surface of the anti-loosening stop block (3),
the second anti-loose nut (4) is coaxially arranged on the anti-loose stop block (3), an internal thread is arranged on the inner cylindrical side face of the second anti-loose nut (4), and the internal thread is used for locking the first anti-loose nut (2) and the anti-loose stop block (3).
2. Locking lockbolt-nut assembly according to claim 1, characterized in that the retaining structure (3-1) comprises a retaining groove provided on the inner surface of the check block and a fixing pin for fixing the bolt and the check block (3).
3. Locking lockbolt-nut assembly according to claim 1, characterized in that the limiting structure (3-1) comprises a boss fixed on the inner surface of the lockdog (3), said boss cooperating with the limiting groove (1-3).
4. Locking lockbolt-nut assembly according to claim 3, characterized in that the number of bosses of the inner surface of the lockdog (3) is the same as the number of limit grooves (1-3).
5. Locking lockbolt nut assembly according to claim 4, characterized in that the number of bosses on the inner surface of the lockdog (3) and the number on the limiting grooves (1-3) are both two.
6. The locking type anti-loose bolt and nut assembly as claimed in claim 1, characterized in that the outer cylindrical surface of the boss of the first anti-loose nut (2) is provided with an external thread used with the second anti-loose nut (4), and the upper end surface of the boss is provided with a first anti-skid tooth (2-2) for increasing the friction force with the anti-loose stop block (3).
7. Locking lockbolt-nut assembly according to claim 1, characterized in that the lower end face of the lockdog (3) is provided with a second anti-slip tooth (3-2) for increasing the friction with the first locknut (2).
8. The locking lockbolt nut assembly of claim 1 wherein said conventional nut comprises a hex-head nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920718566.6U CN210715490U (en) | 2019-05-17 | 2019-05-17 | Self-locking type check bolt and nut assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920718566.6U CN210715490U (en) | 2019-05-17 | 2019-05-17 | Self-locking type check bolt and nut assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210715490U true CN210715490U (en) | 2020-06-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920718566.6U Active CN210715490U (en) | 2019-05-17 | 2019-05-17 | Self-locking type check bolt and nut assembly |
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|---|---|
| CN (1) | CN210715490U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113638955A (en) * | 2021-08-24 | 2021-11-12 | 合肥巨步机械科技有限公司 | Anti-loosening bolt and using method |
-
2019
- 2019-05-17 CN CN201920718566.6U patent/CN210715490U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113638955A (en) * | 2021-08-24 | 2021-11-12 | 合肥巨步机械科技有限公司 | Anti-loosening bolt and using method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 723213 Liulin Town, Chenggu County, Hanzhong City, Shaanxi Province Patentee after: Shaanxi Aircraft Industry Co.,Ltd. Address before: 723213 box 34, Hanzhong City, Shaanxi Province Patentee before: Shaanxi Aircraft INDUSTRY(GROUP) Co.,Ltd. |