CN105114433A - Locking nut piece - Google Patents
Locking nut piece Download PDFInfo
- Publication number
- CN105114433A CN105114433A CN201510438799.7A CN201510438799A CN105114433A CN 105114433 A CN105114433 A CN 105114433A CN 201510438799 A CN201510438799 A CN 201510438799A CN 105114433 A CN105114433 A CN 105114433A
- Authority
- CN
- China
- Prior art keywords
- nut
- internal thread
- thread
- hole
- pitch
- 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.)
- Pending
Links
Abstract
The invention relates to a locking nut piece used in cooperation with a common bolt. The locking nut piece comprises a first nut and a second nut. The first nut is provided with a first through hole penetrating through the first nut, an inner surface surrounding the first through hole and an outer surface opposite to the inner surface. A first internal thread matched with the bolt is arranged on the inner surface. A first external thread is arranged on the outer surface. The second nut is provided with a second through hole penetrating through the second nut. The second through hole comprises an upper end hole and a bottom end hole. The second nut is provided with a second internal thread located in the upper end hole and a third internal thread located in the bottom end hole. The third internal thread is matched with the bolt. The second internal thread is matched with the first external thread. The first internal thread and the third internal thread have the same first thread pitch. The first external thread and the second internal thread have the same second thread pitch. The first thread pitch is different from the second thread pitch. An absolutely locked state relative to acting force occurs in the meshing process, the situation that pre-tightening force is lost cannot occur when vibration is borne, and the first nut and the second nut are prevented from falling off.
Description
[technical field]
The present invention relates to a kind of lock screw part, particularly relate to a kind of lock screw part be used on the larger equipment of the vibration frequencies such as aviation, motor-car, engineering machinery.
[background technique]
Being threaded is the removable connection utilizing thread part to form, and its structure is simple, mounting or dismounting are convenient, reliable and stable, fastening strength large, is widely used in the larger equipment of various vibration frequency.Due to the particularity of vibration, making to be threaded often is subject to the impact of impact, axial repeated action power, the pretightening force in being threaded and frictional force can be reduced gradually or possible instantaneous hour, causes Joint failure.Be threaded once lose efficacy, will the normal use of equipment be had a strong impact on, and even cause the accident.
Given this, the necessary lock screw part providing a kind of improvement, to overcome the defect that prior art exists.
[summary of the invention]
The object of the invention is the lock screw part in order to provide a kind of Drop-proof.
In order to solve the problems of the technologies described above, the invention provides following technological scheme: a kind of lock screw part, for supporting the use with plain bolt, comprise the first nut and the second nut, described first nut is provided with the first perforation run through, around internal surface and the outer surface relative with internal surface of the first perforation, internal surface is provided with the first internal thread coordinated with described bolt, outer surface is provided with the first outside thread, second nut is provided with the second perforation run through, described second perforation comprises upper end hole and hole, bottom, described second nut is provided with the second internal thread being positioned at upper end hole and the 3rd internal thread being positioned at hole, bottom, 3rd internal thread coordinates with described bolt, second internal thread coordinates with described first outside thread, described first internal thread has the first identical pitch with the 3rd internal thread, first outside thread and the second internal thread have the second identical pitch, first pitch is not identical with the second pitch.
The present invention defines further, and described first nut comprises the top and bottom being positioned at opposite end, and the cross-section area at top is greater than the cross-section area of bottom.
The present invention defines further, and described first outside thread is arranged on the part that described outer surface is positioned at bottom.
The present invention defines further, and the cross-section area of described upper end hole is greater than the cross-section area in hole, bottom.
Compared with correlation technique, first internal thread of the first nut of nut fixed piece of the present invention has the first identical pitch with the 3rd internal thread of the second nut, first outside thread of the first nut has the second identical pitch with the second internal thread of the second nut, first pitch is not identical with the second pitch, the absolute locking state that active force is relative is there will be in engagement process, when being subject to vibrating, there will not be pretightening force loss situation, can prevent the first nut and the second nut from coming off.
[accompanying drawing explanation]
Fig. 1 is the three-dimensional exploded view of lock screw part of the present invention and bolt;
Fig. 2 is the generalized section of the first nut of lock screw part of the present invention;
Fig. 3 is the generalized section of the second nut of lock screw part of the present invention;
Fig. 4 is the solid combination of lock screw part of the present invention and bolt; And
Fig. 5 is the generalized section of lock screw part of the present invention and bolt.
[embodiment]
Consult shown in Fig. 1 to Fig. 5, lock screw part of the present invention, in order to support the use with plain bolt 1, comprises the first nut 2 and the second nut 3.
Bolt 1 comprises the head 11 of main body 10 and autonomous agent 10 extension.The cross-section area of head 11 is greater than the cross-section area of main body 10.Main body 10 is provided with male thread 12.
First nut 2 be provided with run through first perforation 20 for accommodate bolt 1, around first perforation 20 internal surface (sign) and the outer surface relative with internal surface (sign), internal surface is provided with the first internal thread 21.First nut 2 comprises the top 22 and bottom 23 that are positioned at opposite end.The cross-section area at top 22 is greater than the cross-section area of bottom 23.The part that described outer surface is positioned at bottom 23 is provided with the first outside thread 25.
Second nut 3 be provided with run through second perforation (sign) for accommodating bolt 1.Second perforation comprises upper end hole 31 and hole, bottom 33.The cross-section area of upper end hole 31 is greater than the cross-section area in hole, bottom 33.Second nut 3 is provided with the second internal thread 34 being positioned at upper end hole 31 and the 3rd internal thread 35 being positioned at hole, bottom 33.First internal thread 21, the 3rd internal thread 35 have the first identical pitch with male thread 12, first outside thread 25 has the second identical pitch with the second internal thread 34, first pitch is not identical with the second pitch, pretightening force between first nut 2 and the second nut 3, prevents the first nut 2 and the second nut 3 from coming off.
During lock screw part assembling of the present invention, the first nut 2 enters bolt 1 along direction A rotary assembled and locks, with the male thread 12 of bolt 1, the first internal thread 25 of the first nut 2 coordinates that the first nut 2 is fixed to bolt 1; Second nut 3 is also enter bolt 1 along direction A rotary assembled, with the male thread 12 of bolt 1,3rd internal thread 35 of the second nut 3 coordinates that the second nut 3 is fixed to bolt 1, with the first outside thread 25 of the first nut 2, the second internal thread 34 of the second nut 3 coordinates that the second nut 3 is fixed on the first nut 2.
When nut fixed piece of the present invention uses, because the first internal thread 21 has the first identical pitch with the 3rd internal thread 35, first outside thread 25 has the second identical pitch with the second internal thread 34, first pitch is not identical with the second pitch, the absolute locking state that active force is relative is there will be in engagement process, when being subject to vibrating, there will not be pretightening force loss situation, can prevent the first nut and the second nut from coming off.
These are only the preferred embodiments of the invention, other any improvement conversion done on the present embodiment basis also should not depart from technological scheme of the present invention.
Claims (4)
1. a lock screw part, for supporting the use with plain bolt, comprise the first nut and the second nut, described first nut is provided with the first perforation run through, around internal surface and the outer surface relative with internal surface of the first perforation, internal surface is provided with the first internal thread coordinated with described bolt, second nut is provided with the second perforation run through, it is characterized in that: described outer surface is provided with the first outside thread, described second perforation comprises upper end hole and hole, bottom, described second nut is provided with the second internal thread being positioned at upper end hole and the 3rd internal thread being positioned at hole, bottom, 3rd internal thread coordinates with described bolt, second internal thread coordinates with described first outside thread, described first internal thread has the first identical pitch with the 3rd internal thread, first outside thread and the second internal thread have the second identical pitch, first pitch is not identical with the second pitch.
2. lock screw part as claimed in claim 1, is characterized in that: described first nut comprises the top and bottom being positioned at opposite end, and the cross-section area at top is greater than the cross-section area of bottom.
3. lock screw part as claimed in claim 2, is characterized in that: described first outside thread is arranged on the part that described outer surface is positioned at bottom.
4. lock screw part as claimed in claim 1, is characterized in that: the cross-section area of described upper end hole is greater than the cross-section area in hole, bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510438799.7A CN105114433A (en) | 2015-07-13 | 2015-07-13 | Locking nut piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510438799.7A CN105114433A (en) | 2015-07-13 | 2015-07-13 | Locking nut piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105114433A true CN105114433A (en) | 2015-12-02 |
Family
ID=54662505
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510438799.7A Pending CN105114433A (en) | 2015-07-13 | 2015-07-13 | Locking nut piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105114433A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111664157A (en) * | 2020-05-26 | 2020-09-15 | 浙江赛日机电科技有限公司 | Multi-pitch nut |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US994528A (en) * | 1908-04-25 | 1911-06-06 | Thomas Foley May | Nut-lock. |
| EP0130304A1 (en) * | 1983-06-27 | 1985-01-09 | Minoru Komatsu | Double locknut assembly and combination of locknut assembly with a bolt |
| US5248232A (en) * | 1992-02-10 | 1993-09-28 | Chiang Chih Chung | Fixing means |
| DE9315582U1 (en) * | 1993-10-13 | 1994-01-13 | Chiang Chih Chung | Safety device |
| GB2282202A (en) * | 1993-09-28 | 1995-03-29 | Chiang Chih Chung | Lock nut capable of engaging resiliently another nut |
| 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 |
| CN2756887Y (en) * | 2004-11-30 | 2006-02-08 | 许彦杰 | Double screw thread deffection type anti-loose screw nut |
| CN2871950Y (en) * | 2006-01-23 | 2007-02-21 | 许彦杰 | Double-threaded deflection anti-loosing nut |
| CN1987133A (en) * | 2006-12-22 | 2007-06-27 | 魏民 | Accentric self locking nut |
| CN201606386U (en) * | 2009-12-04 | 2010-10-13 | 威海华东数控股份有限公司 | Self-locking nut |
| CN103195786A (en) * | 2013-04-09 | 2013-07-10 | 徐文秀 | Anti-looseness nut |
| CN203809477U (en) * | 2014-03-05 | 2014-09-03 | 浙江赛日机电科技有限公司 | Eccentric loose preventing nut |
| CN204458766U (en) * | 2015-01-30 | 2015-07-08 | 李纪明 | A kind of three-dimensional locking chek bolt group |
-
2015
- 2015-07-13 CN CN201510438799.7A patent/CN105114433A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US994528A (en) * | 1908-04-25 | 1911-06-06 | Thomas Foley May | Nut-lock. |
| EP0130304A1 (en) * | 1983-06-27 | 1985-01-09 | Minoru Komatsu | Double locknut assembly and combination of locknut assembly with a bolt |
| US5248232A (en) * | 1992-02-10 | 1993-09-28 | Chiang Chih Chung | Fixing means |
| GB2282202A (en) * | 1993-09-28 | 1995-03-29 | Chiang Chih Chung | Lock nut capable of engaging resiliently another nut |
| DE9315582U1 (en) * | 1993-10-13 | 1994-01-13 | Chiang Chih Chung | Safety device |
| 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 |
| CN2756887Y (en) * | 2004-11-30 | 2006-02-08 | 许彦杰 | Double screw thread deffection type anti-loose screw nut |
| CN2871950Y (en) * | 2006-01-23 | 2007-02-21 | 许彦杰 | Double-threaded deflection anti-loosing nut |
| CN1987133A (en) * | 2006-12-22 | 2007-06-27 | 魏民 | Accentric self locking nut |
| CN201606386U (en) * | 2009-12-04 | 2010-10-13 | 威海华东数控股份有限公司 | Self-locking nut |
| CN103195786A (en) * | 2013-04-09 | 2013-07-10 | 徐文秀 | Anti-looseness nut |
| CN203809477U (en) * | 2014-03-05 | 2014-09-03 | 浙江赛日机电科技有限公司 | Eccentric loose preventing nut |
| CN204458766U (en) * | 2015-01-30 | 2015-07-08 | 李纪明 | A kind of three-dimensional locking chek bolt group |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111664157A (en) * | 2020-05-26 | 2020-09-15 | 浙江赛日机电科技有限公司 | Multi-pitch nut |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102985707B (en) | Lock nut and a fastening unit comprising the same | |
| JP2013053704A (en) | Fastening member with looseness preventer | |
| CA2946992C (en) | Hole-filling sleeve and washer design for bolt installation | |
| CN103912563A (en) | Anti-loosening fastener component | |
| JP2015203492A (en) | Lock nut | |
| CN105114433A (en) | Locking nut piece | |
| US10203000B2 (en) | Locking washer for brace members | |
| US20170204960A1 (en) | Transmission case | |
| CN104405751B (en) | External-threaded self-locking nut vibration test tool | |
| WO2023050604A1 (en) | Detachable anti-disassembly nut assembly | |
| KR102108429B1 (en) | Anti-loosing nut equipped with locking pin and production method therof | |
| GB2571764A (en) | An assembly and method for attaching two components | |
| KR20150132938A (en) | Bolt and Nut for loosening prevention | |
| US9810252B2 (en) | Lower member fixing device and fluid control device provided with the same | |
| CN210068715U (en) | Anti-loosening connection structure for threads | |
| CN109578414B (en) | Self-adaptive axis deflection bolt and using method thereof | |
| KR20160071750A (en) | Bolt and nut assembling module to add torque | |
| JP3210608U (en) | Locking nut | |
| US20170299095A1 (en) | Pipe joint | |
| CN103438083A (en) | Adjusting nut | |
| CN108252994A (en) | Expansion bolt | |
| KR20110133017A (en) | Loosening Nut Washer Using Eccentric Load | |
| CN213711543U (en) | Rivet made of left-tooth screw through back locking | |
| JP2015227721A (en) | Looseness prevention structure for bolt and nut | |
| WO2014125514A1 (en) | Unscrewing-preventing system with friction for bolts |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20151202 |
|
| RJ01 | Rejection of invention patent application after publication |