CN203560258U - Nut locking structure - Google Patents
Nut locking structure Download PDFInfo
- Publication number
- CN203560258U CN203560258U CN201320724344.8U CN201320724344U CN203560258U CN 203560258 U CN203560258 U CN 203560258U CN 201320724344 U CN201320724344 U CN 201320724344U CN 203560258 U CN203560258 U CN 203560258U
- Authority
- CN
- China
- Prior art keywords
- nut
- bolt
- screw
- otch
- notch
- 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.)
- Expired - Lifetime
Links
- 230000000694 effects Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000003292 diminished effect Effects 0.000 description 1
- 238000005549 size reduction Methods 0.000 description 1
Images
Abstract
The utility model relates to a nut locking structure. The nut locking structure comprises a bolt and a nut and is characterized in that a notch is formed in the radial direction in the outer circumferential surface of the nut and communicated with a first screw hole; an unthreaded hole is formed in the position, on the right of the notch, of the axial outer side end face of the nut and communicated with the notch; a second screw hole is formed in the position, on the left of the notch, of the axial inner side of the nut and communicated with the unthreaded hole and the notch; a part is arranged on the bolt, the first screw hole of the nut and an outer thread of the bolt are screwed together to fasten the part, a locking bolt matched with the second screw hole penetrates through the unthreaded hole and is screwed and tightened with the second screw hole, the width of the notch becomes smaller, and then the nut and the bolt are locked. The nut locking structure is simple in structure, easy to manufacture, light in weight, small in occupied space, good in anti-loose effect, wide in application range, convenient to use and adjust, and good in reliability, the locking bolt is screwed into the second screw hole, the width of the notch is reduced, and then the nut and the bolt are locked, locking force is adjustable, and the nut cannot be loosened in the using process.
Description
Technical field
The utility model relates to a kind of nut, is specifically related to a kind of nut locking structure.
Background technique
The threaded anti-loosing structure that nut check is conventional, one is to use locking plate locking, installs cumbersomely, is only by nut check, in using process locking plate easily distortion cause nut loosening.Use besides two nuts that fixture is fixed on bolt, the anti-loose structure of two nuts is to use two nuts to tighten top, forming is threaded longitudinally compresses, in order to prevent wrongly installed and to guarantee that nut below has enough intensity, two contour nuts of general employing, this is relatively simple for structure, cost is low, but weight and take up room is greatlyr used for low-speed heave-load or load occasion stably.Occasion for the high vibration of high rotating speed is still easily loosening.
Summary of the invention
The purpose of this utility model is, a kind of simple in structure and nut locking structure that anti-loosing effect is good is provided.
For achieving the above object, nut locking structure of the present utility model, comprise screw bolt and nut, nut has the first screw matching with the outside thread of bolt, and can screw on bolt, it is characterized in that: on the outer circumferential face of described nut, be radially formed with otch, otch is connected with the first screw; , there is unthreaded hole on the right of described otch on the axial outside end face of nut, and unthreaded hole is communicated with otch; The left side of described otch, there is the second screw the axial inner side of nut, and the second screw communicates with unthreaded hole and otch; Part is contained on bolt, and the first screw of nut and the outside thread of bolt screw fastening part, uses the lock bolt matching with the second screw to pass unthreaded hole, screw and tighten with the second screw, and the width of otch diminishes, nut and bolt-locking.
In order better to realize above-mentioned purpose:
The second described screw is through hole, concentric with unthreaded hole, and the center line of the circular arc that its center line is corresponding with otch overlaps.
The cut height of described otch be nut external diameter 1/2～3/5.
The axial left end of described nut is along circumferentially forming an annular boss, and boss height is 5～10 millimeters.
The kerf width of described otch is 3～5 millimeters.
The utility model is simple in structure, easy to manufacture, by lock bolt, is screwed in the second screw, makes otch size reduction in the axial direction, produces an axial force, thereby makes nut and bolt-locking, and locking effect is good; The degree of depth that screws in the second screw by controlling lock bolt, can realize the controlled of locking force, can effectively control locking force; Compared with the locking mode of double nut, nut of the present utility model takes up room less, lightweight, and locking force is adjustable, and anti-loosing effect is good, and usage range is large, uses good reliability easy to adjust.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of mode of execution of the present utility model.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is the right elevation of Fig. 2.
In figure: 1, bolt, 2, part, 3, nut, 4, outside thread, 5, lock bolt, 31, the first screw, 32, otch, 32a, bottom surface, 33, axial outside end face, 34, unthreaded hole, 35, the second screw, 36, annular boss, L, kerf width, B, boss height, H, cut height.
Embodiment
Nut locking structure of the present utility model, comprises bolt 1 and nut 3, and nut 3 has the first screw 31 matching with the outside thread 4 of bolt 1, and can screw on bolt 1.On the outer circumferential face of nut 3, be radially formed with a kerf 32, otch 32 is connected with the first screw 31, and kerf width L is that 4 millimeters, cut height H are the external diameter of 0.55 times of nut 3., there is a unthreaded hole 34 on the right of otch 32 on the axial outside end face 33 of nut 3, unthreaded hole 34 and otch 32 UNICOMs.The left side of otch 32, it is through hole, concentric with unthreaded hole 34 that there are the second screw 35, the second screws 35 the axial inner side of nut 3, the center line of the circular arc that its center line is corresponding with otch 32 overlaps; The second screw 35 is communicated with unthreaded hole 34 and otch 32.Part 2 is contained on bolt 1, and the first screw 31 and the outside thread 4 of bolt 1 of nut 3 screw fastening part 2, uses the lock bolt 5 matching with the second screw 35 through unthreaded hole 34, screws and tightens with the second screw 35, and kerf width L is diminished, and nut 3 is locked with bolt 1.
The axial left end of nut 3 is along circumferentially forming an annular boss, and boss height B is 8 millimeters.
During use, part 2 is enclosed within on bolt 1, nut 3 is tightened on compressing component 2 on bolt 1, lock bolt 5 is through unthreaded hole 34, screw in the second screw 35, and the kerf width L that tightens the otch 32 making on nut 3 diminishes, nut 3 is locked with bolt 1, the length that control lock bolt 5 screws in is controlled the variation of kerf width L, reaches best locking force.Use easy to adjust and good reliability.
Claims (5)
1. a nut locking structure, comprise bolt (1) and nut (3), nut (3) has the first screw (31) matching with the outside thread (4) of bolt (1), and can screw on bolt (1), it is characterized in that: on the outer circumferential face of described nut (3), be radially formed with otch (32), otch (32) is connected with the first screw (31); , there is unthreaded hole (34) on the right of described otch (32) on the axial outside end face (33) of nut (3), and unthreaded hole (34) is communicated with otch (32); The left side of described otch (32), there is the second screw (35) the axial inner side of nut (3), and the second screw (35) is communicated with unthreaded hole (34) and otch (32); Part (2) is contained on bolt (1), the first screw 31 and the outside thread (4) of bolt (1) of nut (3) screw fastening part (2), with the lock bolt (5) matching with the second screw (35) through unthreaded hole (34), and screw and tighten with the second screw (35), kerf width L diminishes, nut (3) and bolt (1) locking.
2. nut locking structure according to claim 1, is characterized in that: described the second screw (35) is through hole, concentric with unthreaded hole (34), and the center line of the circular arc that its center line is corresponding with otch (32) overlaps.
3. nut locking structure according to claim 1, is characterized in that: the cut height H of described otch (32) be nut (3) external diameter 1/2～3/5.
4. nut locking structure according to claim 1, is characterized in that: the axial left end of described nut (3) is along being circumferentially formed with an annular boss (36), and boss height B is 5～10 millimeters.
5. nut locking structure according to claim 1, is characterized in that: the kerf width L of described otch (32) is 3～5 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320724344.8U CN203560258U (en) | 2013-11-18 | 2013-11-18 | Nut locking structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320724344.8U CN203560258U (en) | 2013-11-18 | 2013-11-18 | Nut locking structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203560258U true CN203560258U (en) | 2014-04-23 |
Family
ID=50509981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320724344.8U Expired - Lifetime CN203560258U (en) | 2013-11-18 | 2013-11-18 | Nut locking structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203560258U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591111A (en) * | 2013-11-18 | 2014-02-19 | 湖南南方宇航工业有限公司 | Nut locking structure |
-
2013
- 2013-11-18 CN CN201320724344.8U patent/CN203560258U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591111A (en) * | 2013-11-18 | 2014-02-19 | 湖南南方宇航工业有限公司 | Nut locking structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Dong Jia Duan High-tech Industrial Park in Hunan province Zhuzhou city Lusong District 412000 Patentee after: AECC HUNAN SOUTH ASTRONAUTICS INDUSTRY CO.,LTD. Address before: Dong Jia Duan High-tech Industrial Park in Hunan province Zhuzhou city Lusong District 412000 Patentee before: Hunan Nanfang Aviation Industry Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140423 |
|
| CX01 | Expiry of patent term |