CN105545921A - Coaxial bolt set with gasket for stopping - Google Patents
Coaxial bolt set with gasket for stopping Download PDFInfo
- Publication number
- CN105545921A CN105545921A CN201410587233.6A CN201410587233A CN105545921A CN 105545921 A CN105545921 A CN 105545921A CN 201410587233 A CN201410587233 A CN 201410587233A CN 105545921 A CN105545921 A CN 105545921A
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- CN
- China
- Prior art keywords
- bolt
- nut
- lock washer
- internal tooth
- tooth
- 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.)
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- Bolts, Nuts, And Washers (AREA)
Abstract
The invention discloses a coaxial bolt set with a gasket for stopping. The coaxial bolt set comprises an outer bolt, an inner bolt, an outer nut, an inner nut and the stopping gasket. Bolt heads of the inner bolt and the outer bolt are designed to be of an anti-rotation structure. Threads of the inner and outer bolts/nuts are designed to be rotated in opposite directions. The stopping gasket is designed between the inner nut and the outer nut, teeth on the stopping gasket are engaged with grooves in the inner nut and the outer nut at the same time, and the two nuts are locked by means of the characteristic that the screwing directions of the inner nut and the outer nut are opposite.
Description
Technical field
The invention belongs to aeroplane structure design, be specifically related to a kind of coaxial bolts group of packing ring stop.
Background technique
Large Aircraft Components docking site often adopts the coaxial bolts group with fail safety characteristic, and determine to pass through breaking pin hole processed after power is installed at nut, the mode of installation insurance bolt is locking.There are large parts and dock construction inconvenience on rear machine in this structural type, after after nut dismounting, power is determined in recovery installation, former breaking pin hole possibly cannot align, need the problems such as brand-new breaking pin hole, and mounting process is poor, and inconvenience is safeguarded in dismounting.
Summary of the invention
The technical problem to be solved in the present invention is, provides a kind of coaxial bolts group of packing ring stop to improve the manufacturability of nut anti-looseness operation, when again determining power installation after nut dismounting, avoids again breaking pin hole processed, improves maintainability.
For the technical solution of the present invention that solves the problem provides a kind of coaxial bolts group of packing ring stop, comprise outer bolt, inner bolt, outer nut, also comprise inner nut and lock washer, the inner ring of described lock washer has one group of internal tooth, outer ring have one group with the equidirectional external tooth of internal tooth and one group and the reciprocal external tooth of internal tooth, the bolt shank end of described inner bolt has the teeth groove mated with described lock washer internal tooth, the outer rim of described outer nut has the teeth groove mated with the internal tooth of described lock washer external tooth in the same way, the teeth groove that the outer rim of described inner nut has the external tooth reverse with described lock washer internal tooth to mate, described inner bolt inserts in outer bolt from bolt head, described outer nut and described outer bolt spiral connecting sleeve are at described outer bolt end, the internal tooth of described lock washer is fastened in the teeth groove of described inner bolt end, be fastened in the teeth groove of described outer nut with internal tooth external tooth in the same way, described inner nut is connected with described inner bolt spiral, described lock washer and the reverse external tooth of internal tooth are fastened in the teeth groove of described inner nut.
Preferably, the bolt head of described inner bolt and outer bolt is that D shape is designed.
Preferably, described outer bolt is contrary with the threaded engagement direction of described inner bolt and inner nut with the threaded engagement direction of outer nut.
Preferably, the internal tooth of described lock washer can inner nut tighten determine power after bend, engage with the groove on described inner nut; The external tooth of lock washer can bend after determining power by nut screwing clamping outside, engages with the groove on described outer nut.
The present invention's design, by designing lock washer between inner nut and outer nut, is engaged with the groove on inside and outside nut by the tooth on this lock washer simultaneously, is realized the locking stop of two nuts.The bolt head of female screws is designed to rotation prevention structure, is counterrotating by the Design of Screw Thread of female screws/nut, can ensure that the locking between two screw bolt and nut is locking further.Compared with the locking mode of existing pin, have degree of regulation high, dismounting and easy for installation, that maintainability is good advantage.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, specific embodiments of the present invention are further described in detail, wherein:
Fig. 1 is coaxial bolts group structural entity schematic diagram;
Fig. 2 is outer bolt 1 schematic diagram;
Fig. 3 is inner bolt 2 schematic diagram;
Fig. 4 is outer nut 3 schematic diagram;
Fig. 5 is inner nut 4 structural representation;
Fig. 6 is lock washer 5 structural representation.
Embodiment
Below the present invention is described in further detail.See Fig. 1, a kind of coaxial bolts group of packing ring stop, comprises outer bolt 1, inner bolt 2, outer nut 3, inner nut 4, lock washer 5.It is characterized in that: outer bolt 1 and inner bolt 2 are embedded by D shape groove at bolt head, prevent mutual rotation; Outer bolt 1, outer nut 3 are contrary with the thread rotary orientation of inner bolt 2, inner nut 4; Lock washer 5 is designed with between outer nut 3 and inner nut 4, the tooth of lock washer 5 inner ring inserts the groove internal fixtion of inner bolt 2 cylindrical, prevent lock washer 5 from rotating, the tooth of outer ring is divided into two groups, one group bends to outer nut 3 direction, for engaging with the groove on outer nut 3, one group bends to inner nut 4 direction, for engaging with the groove on inner nut 4.
During installation, inner bolt 2 is inserted outer bolt 1 and embeds in its bolt head D shape groove, two bolts are inserted in attachment hole together; Then determine power and outer nut 3 is installed, put into lock washer 5, and engage bending with the tooth that outer nut 3 mates with the teeth groove on outer nut 3; Inner nut 4 be installed and determine power, the tooth that lock washer 5 mates with inner nut 4 being bent and engages with the teeth groove on inner nut 4.
When bolt group uses, because outer nut 3 is contrary with inner nut 4 rotation direction, and engage with same lock washer 5 simultaneously, therefore can not loosen.
When needs demounting bolt group, first open the tooth that lock washer 5 engages with inner nut 4, dismounting inner nut 4, takes out lock washer 5, and then dismantle outer nut 3, then entirety extracts outer bolt 1 and inner bolt 2.
Claims (4)
1. the coaxial bolts group of a packing ring stop, comprise outer bolt (1), inner bolt (2), outer nut (3), it is characterized in that, also comprise inner nut (4) and lock washer (5), the inner ring of described lock washer (5) has one group of internal tooth, outer ring have one group with the equidirectional external tooth of internal tooth and one group and the reciprocal external tooth of internal tooth, the bolt shank end of described inner bolt (2) has the teeth groove mated with described lock washer (5) internal tooth, the outer rim of described outer nut (3) has the teeth groove mated with the internal tooth external tooth in the same way of described lock washer (5), the teeth groove that the outer rim of described inner nut (2) has the external tooth reverse with described lock washer (5) internal tooth to mate, described inner bolt (2) inserts in outer bolt (1) from bolt head, described outer nut (3) and described outer bolt (1) spiral connecting sleeve are at described outer bolt (1) end, the internal tooth of described lock washer (5) is fastened in the teeth groove of described inner bolt (5) end, be fastened in the teeth groove of described outer nut (3) with internal tooth external tooth in the same way, described inner nut (4) is connected with described inner bolt (2) spiral, the reverse external tooth of described lock washer (5) and internal tooth is fastened in the teeth groove of described inner nut (4).
2. coaxial bolts group according to claim 1, is characterized in that, described inner bolt (2) is that D shape is designed with the bolt head of outer bolt (1).
3. coaxial bolts group according to claim 1, it is characterized in that, described outer bolt (1) is contrary with the threaded engagement direction of inner nut (4) with described inner bolt (2) with the threaded engagement direction of outer nut (3).
4. coaxial bolts group according to claim 1, is characterized in that, the internal tooth of described lock washer (5) can inner nut (4) tighten determine power after bend, engage with the groove on described inner nut (4); The external tooth of lock washer (5) can outer nut (3) tighten determine power after bend, engage with the groove on described outer nut (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410587233.6A CN105545921B (en) | 2014-10-28 | 2014-10-28 | A kind of coaxial bolts group of packing ring stop |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410587233.6A CN105545921B (en) | 2014-10-28 | 2014-10-28 | A kind of coaxial bolts group of packing ring stop |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105545921A true CN105545921A (en) | 2016-05-04 |
| CN105545921B CN105545921B (en) | 2018-02-27 |
Family
ID=55825355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410587233.6A Active CN105545921B (en) | 2014-10-28 | 2014-10-28 | A kind of coaxial bolts group of packing ring stop |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105545921B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107521706A (en) * | 2017-07-28 | 2017-12-29 | 中国航空工业集团公司西安飞机设计研究所 | Engine aids in erection joint |
| CN111765191A (en) * | 2020-07-01 | 2020-10-13 | 上海电动工具研究所（集团）有限公司 | Spring pressure adjusting device |
| CN112032180A (en) * | 2020-08-28 | 2020-12-04 | 北京航空航天大学 | Double-nut anti-loosening device suitable for shaft parts |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3022809A (en) * | 1958-01-20 | 1962-02-27 | Shur Lok Corp | Nut and bolt lock with teeth to notch the bolt thread |
| CN2177120Y (en) * | 1993-07-17 | 1994-09-14 | 张吉林 | Anti-loose, anti-theft fastening bolt |
| US5855463A (en) * | 1997-09-15 | 1999-01-05 | Newby; John C. | Bolt and nut thread friction locking device with opposite hand threads with a captured spring or spring lock washer |
| CN201428718Y (en) * | 2009-06-26 | 2010-03-24 | 上海通用汽车有限公司 | Connecting device |
| US20110097174A1 (en) * | 2009-10-26 | 2011-04-28 | Arnold Varden | Locking axle nut |
| CN202118079U (en) * | 2011-05-26 | 2012-01-18 | 西华大学 | Anti-loosening structure for thread connection |
| CN202597389U (en) * | 2012-05-25 | 2012-12-12 | 福州萱裕金属配套有限公司 | Novel erection adjusting bolt assembly |
-
2014
- 2014-10-28 CN CN201410587233.6A patent/CN105545921B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3022809A (en) * | 1958-01-20 | 1962-02-27 | Shur Lok Corp | Nut and bolt lock with teeth to notch the bolt thread |
| CN2177120Y (en) * | 1993-07-17 | 1994-09-14 | 张吉林 | Anti-loose, anti-theft fastening bolt |
| US5855463A (en) * | 1997-09-15 | 1999-01-05 | Newby; John C. | Bolt and nut thread friction locking device with opposite hand threads with a captured spring or spring lock washer |
| CN201428718Y (en) * | 2009-06-26 | 2010-03-24 | 上海通用汽车有限公司 | Connecting device |
| US20110097174A1 (en) * | 2009-10-26 | 2011-04-28 | Arnold Varden | Locking axle nut |
| CN202118079U (en) * | 2011-05-26 | 2012-01-18 | 西华大学 | Anti-loosening structure for thread connection |
| CN202597389U (en) * | 2012-05-25 | 2012-12-12 | 福州萱裕金属配套有限公司 | Novel erection adjusting bolt assembly |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107521706A (en) * | 2017-07-28 | 2017-12-29 | 中国航空工业集团公司西安飞机设计研究所 | Engine aids in erection joint |
| CN111765191A (en) * | 2020-07-01 | 2020-10-13 | 上海电动工具研究所（集团）有限公司 | Spring pressure adjusting device |
| CN111765191B (en) * | 2020-07-01 | 2021-11-26 | 上海电动工具研究所（集团）有限公司 | Spring pressure adjusting device |
| CN112032180A (en) * | 2020-08-28 | 2020-12-04 | 北京航空航天大学 | Double-nut anti-loosening device suitable for shaft parts |
| CN112032180B (en) * | 2020-08-28 | 2021-09-17 | 北京航空航天大学 | Double-nut anti-loosening device suitable for shaft parts |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105545921B (en) | 2018-02-27 |
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