CN202756388U - Left-and-right turning locking device with push screw on major diameter shaft end - Google Patents
Left-and-right turning locking device with push screw on major diameter shaft end Download PDFInfo
- Publication number
- CN202756388U CN202756388U CN 201220297296 CN201220297296U CN202756388U CN 202756388 U CN202756388 U CN 202756388U CN 201220297296 CN201220297296 CN 201220297296 CN 201220297296 U CN201220297296 U CN 201220297296U CN 202756388 U CN202756388 U CN 202756388U
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- Prior art keywords
- nut
- screw
- major diameter
- locking device
- section
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- Expired - Lifetime
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Abstract
The utility model discloses a left-and-right turning locking device with a push screw on a major diameter shaft end. The left-and-right turning locking device comprises a major diameter shaft rod (1), a clamped body (2), and a locking device. The end portion E section and the end portion F section of the major diameter shaft rod (1) are provided with left-and-right turning threads. The locking device is composed of a fixing nut (3), a push screw (4), and a locking nut (5), wherein the fixing nut (3) is screwed tightly on E section threads and the locking nut (5) is screwed on F section threads. Spacing between the fixing nut (3) and the locking nut (5) is from 0.5 millimeter to 20 millimeters. The push screw (4) is fixedly linked with the fixing nut (3) and the locking nut (5). The left-and-right turning locking device with the push screw on the major diameter shaft end is suitable for fastening of the major diameter shaft end.
Description
Technical field
The utility model relates to a kind of locking device, in particular, relates to a kind of major diameter axle head and is provided with the left-right rotary locking device of pushing screw open.
Background technique
At present, when the end of major diameter axostylus axostyle needs nut to tighten, because axostylus axostyle is major diameter, so nut is not easy to tighten, and machinery also can to cause nut to produce in the vibrations in when operation loosening, the degradation in the time of can causing mechanical movement, even can lead to a disaster.
For preventing the generation of nut loosening phenomenon, have special-purpose locking nut, but this locking nut should punch simultaneously at axostylus axostyle, nut, after assembling, twine again and tie up iron wire, and can not reuse; Also there is a kind of locking nut to realize with encapsulating, can not reuses equally; Have also that to use anti-loosening left-right rotary screw thread combination bolt and nut, this assembling bolt nut be by left-right rotary screw bolt, reciprocity law power when nut cooperates, reach anti-loosening effect.But two nuts are next anti-loosening by frictional force, because the effect of frictional force also can make set screw nut Hui Song, locking effect is not very good; And constantly reciprocity law power can make frictional force constantly change, and pretightening force just is difficult for prediction like this; When locking to major diameter axle head needs, also be not easy to tighten.Up to the present, not yet occur a kind of reusable major diameter axle head on the market and be provided with the left-right rotary locking device of pushing screw open.
The model utility content
The purpose of this utility model is can not well tighten the end of major diameter axostylus axostyle and the phenomenon that nut easily becomes flexible for existing nut, is provided with the left-right rotary locking device of pushing screw open and carry a kind of major diameter axle head.
Major diameter axle head of the present utility model is provided with the left-right rotary locking device of pushing screw open, comprise major diameter axostylus axostyle, clamped body and locking device, end E section and the F section of described major diameter axostylus axostyle are provided with the left-right rotary screw thread, described locking device by set screw nut, push screw open, locking nut forms, described set screw nut is tightened on E section screw thread, locking nut screws at F section screw thread, set screw nut and locking nut spacing 0.5mm-20mm, described screw attachment set screw nut and the locking nut pushed open.
Described E section is dextrorotation, and the F section is left-handed, and to be that dextrorotation is upper left screw off described set screw nut, and locking nut is left-handed upper right screwing off.
Described E section is left-handed, and the F section is dextrorotation, and described set screw nut is left-handed upper right screwing off, and to be that dextrorotation is upper left screw off locking nut.
Described set screw nut and locking nut spacing 5mm-10mm.
The described screw front end of pushing open is without screw thread, there is screw thread the rear end, 1-3 blind hole of processing on the described set screw nut circumferencial direction, 1-3 internal thread through hole of processing on the described locking nut circumferencial direction, the rear end screw thread of pushing screw open screws in the internal thread through hole on locking nut, and front end withstands in the blind hole on the set screw nut.
The beneficial effects of the utility model: (1) simple in structure, be easy to make; (2) practical, can reuse; (3) pretightening force is constant, effectively prevents the loosening of nut; (4) avoid mutual friction between nut, prolonged the service time of nut; (5) easy for installation.
Description of drawings
Fig. 1 is the view that the end is provided with the major diameter axostylus axostyle of left-right rotary screw thread;
Fig. 2 is the sectional view that the major diameter axle end is provided with locking device;
Fig. 3 is the structural representation of set screw nut;
Fig. 4 is the C-C revolved view of Fig. 3;
Fig. 5 is the structural representation of locking nut;
Fig. 6 is the D-D revolved view of Fig. 5;
Among the figure: major diameter axostylus axostyle 1, clamped body 2, set screw nut 3, push screw 4, locking nut 5 open.
Embodiment
End E section and the F section of described major diameter axostylus axostyle 1 are provided with the left-right rotary screw thread, described E section is dextrorotation, the F section is left-handed, set screw nut 3 screws off for dextrorotation is upper left, locking nut 5 is left-handed upper right screwing off, locking device is by set screw nut 3, push screw 4 open, locking nut 5 forms, push screw 4 front ends open without screw thread, there is screw thread the rear end, 2 blind holes of processing on described set screw nut 3 circumferencial directions, 2 internal thread through hole of processing on described locking nut 5 circumferencial directions, the rear end screw thread of pushing screw 4 open screw in the internal thread through hole on locking nut 5, front end withstands in the blind hole on the set screw nut 3, and described set screw nut 3 is 10mm with locking nut 5 spacings.
Like this when mechanical movement, because vibrations, set screw nut 3 loosening meeting will occur to anticlockwise, can drive locking nut 5 also to anticlockwise owing to push the friction of the generation of screw 4 open, at this moment because the left-handed generation of locking nut 5 oppositely tightens up power, will play the effect of tightening up, thereby well prevent the loosening of nut; And because locking nut 5 circumferencial directions are provided with internal thread through hole, and there is screw thread the rear end of pushing screw 4 open, well like this having guaranteed that set screw nut 3 and locking nut 5 spacings are constant, pretightening force is also constant, has better prevented the loosening of nut; Set screw nut 3 has certain spacing with locking nut 5, has avoided direct contact, prolongs the service time of nut; To the device that the major diameter axle head need to be tightened, be convenient to install.
The end E section of described major diameter axostylus axostyle 1 is left-handed, the F section is dextrorotation, described set screw nut 3 is left-handed upper right screwing off, locking nut 5 screws off for dextrorotation is upper left, locking device is by set screw nut 3, push screw 4 open, locking nut 5 forms, there is screw thread the rear end of pushing screw 4 open, front end is without screw thread, 2 blind holes of processing on described set screw nut 3 circumferencial directions, 2 internal thread through hole of processing on described locking nut 5 circumferencial directions, the rear end screw thread of pushing screw 4 open screws in the internal thread through hole on locking nut 5, and front end withstands in the blind hole on the set screw nut 3, and described set screw nut 3 is 5mm with locking nut 5 spacings.
Claims (5)
1. a major diameter axle head is provided with the left-right rotary locking device of pushing screw open, comprise major diameter axostylus axostyle (1), clamped body (2) and locking device, it is characterized in that, end E section and the F section of described major diameter axostylus axostyle (1) are provided with the left-right rotary screw thread, described locking device is by set screw nut (3), push screw (4) open, locking nut (5) forms, described set screw nut (3) is tightened on E section screw thread, locking nut (5) screws at F section screw thread, set screw nut (3) and locking nut (5) spacing 0.5mm-20mm, described screw (4) be connected and fixed nut (3) and the locking nut (5) pushed open.
2. major diameter axle head according to claim 1 is provided with the left-right rotary locking device of pushing screw open, it is characterized in that the end E section of described major diameter axostylus axostyle (1) is dextrorotation, the F section is left-handed, described set screw nut (3) screws off for dextrorotation is upper left, and locking nut (5) is left-handed upper right screwing off.
3. major diameter axle head according to claim 1 is provided with the left-right rotary locking device of pushing screw open, it is characterized in that the end E section of described major diameter axostylus axostyle (1) is left-handed, the F section is dextrorotation, described set screw nut (3) is left-handed upper right screwing off, and locking nut (5) screws off for dextrorotation is upper left.
4. major diameter axle head according to claim 1 is provided with the left-right rotary locking device of pushing screw open, it is characterized in that, described set screw nut (3) is 5mm-10mm with locking nut (5) spacing.
5. major diameter axle head according to claim 1 is provided with the left-right rotary locking device of pushing screw open, it is characterized in that, there is screw thread described rear end of pushing screw (4) open, front end is without screw thread, 1-3 blind hole of processing on described set screw nut (3) circumferencial direction, 1-3 internal thread through hole of processing on described locking nut (5) circumferencial direction, the rear end screw thread of pushing screw (4) open screw in the internal thread through hole on locking nut (5), and front end withstands in the blind hole on the set screw nut (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220297296 CN202756388U (en) | 2012-06-25 | 2012-06-25 | Left-and-right turning locking device with push screw on major diameter shaft end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220297296 CN202756388U (en) | 2012-06-25 | 2012-06-25 | Left-and-right turning locking device with push screw on major diameter shaft end |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202756388U true CN202756388U (en) | 2013-02-27 |
Family
ID=47735573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220297296 Expired - Lifetime CN202756388U (en) | 2012-06-25 | 2012-06-25 | Left-and-right turning locking device with push screw on major diameter shaft end |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202756388U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653582A (en) * | 2013-11-18 | 2015-05-27 | 张响红 | Screw with right-hand and left-hand threads |
| WO2020083273A1 (en) * | 2018-10-23 | 2020-04-30 | 卢玉珊 | Anti-loosening, easy-open/close threaded fixing assembly and connecting structure |
| CN111649052A (en) * | 2020-06-10 | 2020-09-11 | 嘉善伟悦紧固件有限公司 | Fastener convenient to change spare part |
-
2012
- 2012-06-25 CN CN 201220297296 patent/CN202756388U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104653582A (en) * | 2013-11-18 | 2015-05-27 | 张响红 | Screw with right-hand and left-hand threads |
| WO2020083273A1 (en) * | 2018-10-23 | 2020-04-30 | 卢玉珊 | Anti-loosening, easy-open/close threaded fixing assembly and connecting structure |
| CN111649052A (en) * | 2020-06-10 | 2020-09-11 | 嘉善伟悦紧固件有限公司 | Fastener convenient to change spare part |
| CN111649052B (en) * | 2020-06-10 | 2022-03-29 | 嘉善伟悦紧固件有限公司 | Fastener convenient to change spare part |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130227 |
|
| CX01 | Expiry of patent term |