CN208816502U - Self locking anti-loose nut - Google Patents
Self locking anti-loose nut Download PDFInfo
- Publication number
- CN208816502U CN208816502U CN201821512836.XU CN201821512836U CN208816502U CN 208816502 U CN208816502 U CN 208816502U CN 201821512836 U CN201821512836 U CN 201821512836U CN 208816502 U CN208816502 U CN 208816502U
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- China
- Prior art keywords
- screw thread
- torsional spring
- expanding ring
- riveting segment
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Abstract
The utility model relates to screw, the locking field of bolt or nut, specially a kind of self locking anti-loose nut.A kind of self locking anti-loose nut, including nut body (1), it is characterized in that: further including screw thread torsional spring (2) and expanding ring (3), nut body (1) is sequentially connected and is constituted by main paragraph (11) and riveting segment (12), and the inner sidewall of main paragraph (11) is equipped with internal screw thread (14)；The lateral surface of screw thread torsional spring (2) is external screw thread (21)；Expanding ring (3) is C-shaped, and the top of expanding ring (3) side wall is equipped with locating slot (31)；Expanding ring (3) is arranged and is fastened on screw thread torsional spring (2) outside；Expanding ring (3) rivet clasp of screw thread torsional spring (2) has been arranged in the riveting segment (12) of nut body (1).The utility model structure is simple, easy for installation, and anti-loosing effect is good.
Description
Technical field
The utility model relates to screw, the locking field of bolt or nut, specially a kind of self locking anti-loose nut.
Background technique
Currently, the locking measures of the nut of internal screw thread are more single, it is general to common are rigidity self-locking nut, nylon nut etc.
Logical self-locking nut, also has using threaded-insert type stop nut, and generally existing structure is complicated, installation is inconvenient, anti-loosing effect difference defect.
Utility model content
In order to overcome the drawbacks of the prior art, the screw thread locking that a kind of structure is simple, easy for installation, anti-loosing effect is good is provided
Device, the utility model discloses a kind of self locking anti-loose nuts.
The utility model reaches goal of the invention by following technical solution:
A kind of self locking anti-loose nut, including nut body, it is characterized in that: further include screw thread torsional spring and expanding ring,
Nut body is sequentially connected by main paragraph and riveting segment and is constituted, and the lateral surface of both main paragraph and riveting segment passes through
The linkage section of truncated cone-shaped connects, and the big nose circle of linkage section and the lateral surface of main paragraph flush, the small nose circle and riveting segment of linkage section
Lateral surface flush；The inner sidewall of main paragraph is equipped with internal screw thread, and the inner sidewall of riveting segment is smooth location hole, riveting segment
Side wall is equipped with detent notch；
The lateral surface of screw thread torsional spring is and the external screw thread that internal screw thread matches each other on main paragraph inner sidewall, the top of screw thread torsional spring
The torsion outward respectively of bottom both ends；Expanding ring is C-shaped, and the top of expanding ring side wall is equipped with locating slot, the internal diameter of expanding ring
Interference fit is formed with the outer diameter of screw thread torsional spring, the outer diameter of expanding ring and the internal diameter of riveting segment location hole form clearance fit；
Expanding ring is arranged and is fastened on outside screw thread torsional spring, and the top of screw thread torsional spring is stretched out from the locating slot of expanding ring,
The bottom end of screw thread torsional spring is stretched out from the notch of expanding ring and blocks the side wall of expanding ring；
The expanding ring rivet clasp of screw thread torsional spring is arranged in the riveting segment of nut body, screw thread torsional spring screws into
In the internal screw thread of main paragraph, the locating slot of expanding ring and the detent notch of riveting segment are aligned with each other, the top of screw thread torsional spring from
Detent notch is stretched out and is rotated in detent notch.
The self locking anti-loose nut, it is characterized in that: detent notch correspond to the central angle of riveting segment (12) side wall 75 °~
90 °, the number of coils, that is, thread number of screw thread torsional spring is 3~5.
Screw thread torsional spring is a kind of novel threaded female fastener, with high intensity, high-precision, any surface finish cold rolling diamond shape not
A kind of concentric body of spring like internal and external threads that rust steel wire is accurately process, a coil spring of screw thread torsional spring is a thread,
It is mainly used for enhancing and protecting the internal screw thread of low-intensity material, when the screw thread tripping on protocorm or when random tooth, as repairing hand
Section, avoids result in and entire matrix is caused to scrap.
When the utility model is used, when fastening installation, nut body, the top of screw thread torsional spring and detent notch are rotated forward
Has the tendency that separation, screw thread torsional spring, which is connected through a screw thread, drives nut body rotation, to complete fastening installation；When rotating backward spiral shell
Maternal body, since the top of screw thread torsional spring is resisted and can not be rotated by detent notch, to play locking effect；If desired it unloads
Nut body can break the top of screw thread torsional spring from detent notch, release detent notch to the position-limiting action of screw thread torsional spring
It gradually rotates backward nut body and is unscrewed disassembly.
This realization new application self-locking anti-loosing in fastener areas acts on, and by the Simple assembled of three common parts, reaches
To the fastening function of plain bolt pair, have installation and the fastening effect of plain bolt pair.
The beneficial effects of the utility model are: structure is simple, easy for installation, anti-loosing effect is good.
Detailed description of the invention
Fig. 1 is the cross-sectional view of nut body in the utility model；
Fig. 2 is the main view of screw thread torsional spring in the utility model；
Fig. 3 is the axonometric drawing of screw thread torsional spring in the utility model；
Fig. 4 is the axonometric drawing of the utility model split shed retainer ring；
Fig. 5 is the sectional view of the utility model；
Fig. 6 is the axonometric drawing of the utility model.
Specific embodiment
The utility model is further illustrated below by way of specific embodiment.
Embodiment 1
A kind of self locking anti-loose nut, including nut body 1, screw thread torsional spring 2 and expanding ring 3, as shown in Fig. 1~Fig. 6, tool
Body structure is:
Nut body 1 is sequentially connected and is constituted by main paragraph 11 and riveting segment 12 nut body 1 as shown in Figure 1:, main paragraph 11
It is connected with the lateral surface of both riveting segments 12 by the linkage section 13 of truncated cone-shaped, the big nose circle of linkage section 13 and main paragraph 11
Lateral surface flushes, and the small nose circle of linkage section 13 and the lateral surface of riveting segment 12 flush；The inner sidewall of main paragraph 11 is equipped with interior spiral shell
Line 14, the inner sidewall of riveting segment 12 are smooth location hole 15, and the side wall of riveting segment 12 is equipped with detent notch 16；
Screw thread torsional spring is as shown in Figures 2 and 3: the lateral surface of screw thread torsional spring 2 is and internal screw thread 14 on 11 inner sidewall of main paragraph
The external screw thread 21 to match each other, the torsion outward respectively of the top and bottom ends of screw thread torsional spring 2；Expanding ring 3 is as shown in Figure 4: open card
Circle 3 is C-shaped, and the top of 3 side wall of expanding ring is equipped with locating slot 31, and the internal diameter of expanding ring 3 and the outer diameter of screw thread torsional spring 2 are formed
The internal diameter of interference fit, 12 location hole 15 of outer diameter and riveting segment of expanding ring 3 forms clearance fit；
As shown in Figure 5 and Figure 6: expanding ring 3 is arranged and is fastened on outside screw thread torsional spring 2, and the top of screw thread torsional spring 2 is from opening
The locating slot 31 of retainer ring 3 stretches out, and the bottom end of screw thread torsional spring 2 is stretched out from the notch of expanding ring 3 and blocks the side of expanding ring 3
Wall；
3 rivet clasp of expanding ring of screw thread torsional spring 2 is arranged in the riveting segment 12 of nut body 1, the outer spiral shell of screw thread torsional spring 2
Line screws in the internal screw thread of main paragraph 11, and the locating slot 31 of expanding ring 3 and the detent notch 16 of riveting segment 12 are aligned with each other, spiral shell
The top of line torsional spring 2 is stretched out from detent notch 16 and is rotated in detent notch 16.
For the central angle of corresponding 12 side wall of riveting segment of detent notch 16 at 75 °~90 °, the present embodiment takes 90 °；Screw thread torsional spring 2
The number of coils, that is, thread number be 3~5, the present embodiment takes 5.
Screw thread torsional spring 2 is a kind of novel threaded female fastener, with the cold rolling diamond shape of high intensity, high-precision, any surface finish
A kind of concentric body of spring like internal and external threads that stainless steel wire is accurately process, a coil spring of screw thread torsional spring 2 are a spiral shell
Tooth is mainly used for enhancing and protecting the internal screw thread of low-intensity material, when the screw thread tripping on protocorm or when random tooth, as reparation
Means avoid result in and entire matrix are caused to scrap.
The present embodiment rotates forward nut body 1, the top of screw thread torsional spring 2 and detent notch in use, when fastening is installed
16 have the tendency that separation, and screw thread torsional spring 2, which is connected through a screw thread, drives nut body 1 to rotate, to complete fastening installation；Turn when reversed
Dynamic nut body 1, since the top of screw thread torsional spring 2 is resisted and can not be rotated by detent notch 16, to play locking effect；If
It needs to unload nut body 1, the top of screw thread torsional spring 2 can be broken from detent notch 16, release detent notch 16 to screw thread torsional spring 2
Position-limiting action, can gradually rotate backward nut body 1 and be unscrewed disassembly.
Claims (2)
1. a kind of self locking anti-loose nut, including nut body (1), it is characterized in that: further including screw thread torsional spring (2) and expanding ring
(3),
Nut body (1) is sequentially connected and is constituted by main paragraph (11) and riveting segment (12), main paragraph (11) and riveting segment (12) this
The lateral surface of the two is connected by the linkage section (13) of truncated cone-shaped, the big nose circle of linkage section (13) and the lateral surface of main paragraph (11)
It flushes, the small nose circle of linkage section (13) and the lateral surface of riveting segment (12) flush；The inner sidewall of main paragraph (11) is equipped with interior spiral shell
Line (14), the inner sidewall of riveting segment (12) are smooth location hole (15), and the side wall of riveting segment (12) is equipped with detent notch
(16)；
The lateral surface of screw thread torsional spring (2) is and the external screw thread (21) that internal screw thread (14) matches each other on main paragraph (11) inner sidewall,
The torsion outward respectively of the top and bottom ends of screw thread torsional spring (2)；Expanding ring (3) is C-shaped, and the top of expanding ring (3) side wall is equipped with
Locating slot (31), the internal diameter of expanding ring (3) and the outer diameter of screw thread torsional spring (2) form interference fit, the outer diameter of expanding ring (3)
Clearance fit is formed with the internal diameter of riveting segment (12) location hole (15)；
Expanding ring (3) is arranged and is fastened on screw thread torsional spring (2) outside, the positioning of the top of screw thread torsional spring (2) from expanding ring (3)
Slot (31) stretches out, and the bottom end of screw thread torsional spring (2) is stretched out from the notch of expanding ring (3) and blocks the side wall of expanding ring (3)；
Expanding ring (3) rivet clasp of screw thread torsional spring (2) is arranged in the riveting segment (12) of nut body (1), screw thread torsional spring (2)
Screw into the internal screw thread of main paragraph (11), the detent of the locating slot (31) of expanding ring (3) and riveting segment (12) lacks
Mouth (16) is aligned with each other, and the top of screw thread torsional spring (2) is stretched out from detent notch (16) and the rotation in detent notch (16).
2. self locking anti-loose nut as described in claim 1, it is characterized in that: corresponding riveting segment (12) side wall of detent notch (16)
For central angle at 75 °~90 °, the number of coils, that is, thread number of screw thread torsional spring (2) is 3~5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821512836.XU CN208816502U (en) | 2018-09-17 | 2018-09-17 | Self locking anti-loose nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821512836.XU CN208816502U (en) | 2018-09-17 | 2018-09-17 | Self locking anti-loose nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208816502U true CN208816502U (en) | 2019-05-03 |
Family
ID=66277335
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821512836.XU Active CN208816502U (en) | 2018-09-17 | 2018-09-17 | Self locking anti-loose nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208816502U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360210A (en) * | 2019-08-01 | 2019-10-22 | 上海纳特汽车标准件有限公司 | A kind of Anti-dropping safety self-clinching nut |
| CN112682415A (en) * | 2020-12-29 | 2021-04-20 | 宁波金鼎紧固件有限公司 | Fastener with torsional spring self-locking function |
-
2018
- 2018-09-17 CN CN201821512836.XU patent/CN208816502U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360210A (en) * | 2019-08-01 | 2019-10-22 | 上海纳特汽车标准件有限公司 | A kind of Anti-dropping safety self-clinching nut |
| CN110360210B (en) * | 2019-08-01 | 2024-04-12 | 上海纳特汽车标准件有限公司 | Anti-drop safety press riveting nut |
| CN112682415A (en) * | 2020-12-29 | 2021-04-20 | 宁波金鼎紧固件有限公司 | Fastener with torsional spring self-locking function |
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| GR01 | Patent grant |