CN201908932U - Self-locking locknut assembly - Google Patents
Self-locking locknut assembly Download PDFInfo
- Publication number
- CN201908932U CN201908932U CN2011200502758U CN201120050275U CN201908932U CN 201908932 U CN201908932 U CN 201908932U CN 2011200502758 U CN2011200502758 U CN 2011200502758U CN 201120050275 U CN201120050275 U CN 201120050275U CN 201908932 U CN201908932 U CN 201908932U
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Abstract
The utility model relates to a self-locking locknut assembly. The utility model solves the problems that: due to structural limitation, the conventional thread locking method cannot be repetitively used, and is not suitable for use in heavy-duty, high-vibration places, the self-locking nut cannot be conveniently operated, and the bolt fastened by the self-locking nut can be radially bent. The self-locking locknut assembly comprises a main nut, an elastic element and an auxiliary nut, the main nut and the auxiliary nut are respectively provided with a first internal-threaded hole which can be connected with a bolt, the auxiliary nut is mounted on the main nut, the auxiliary nut and the main nut are connected with each other through screw threads, the screwing direction of the connection between the main nut and the auxiliary nut are opposite from the screwing direction of the connection between the main nut, the auxiliary nut and the bolt, and the elastic element is arranged between the main nut and the auxiliary nut. The self-locking locknut assembly is mainly used in important screwed places which violently vibrate and cannot be pretightened.
Description
Technical field
The utility model relates to a kind of anti-loosen screw nut component.
Background technique
For the screw thread of fastening purpose, require to obtain enough big stable pretightening force, unlikely generation is become flexible under operating conditions such as vibration, varying load, and claimed structure is compact as far as possible, mounting or dismounting are convenient, reusable.The common method of existing locking thread has the frictional force anti-loose method of increasing and mechanical anti-loose method.Increase the frictional force anti-loose method, as spring washer, double nut, metal lock pad, binding nut, Toothed Lock Washer, nylon inserts lock etc. all is locking by increasing frictional force, but using effect does not have the reliability of connection in heavy duty, the big occasion of vibration; The machinery anti-loose method, being connected in series, sticking up shape packing ring, concave cone face lock washer etc. as slotted nut, cotter pin, lock washer, wedge pressure type, duplex lock washer, steel wire all leans on machinery locking, though good locking effect is played in the mechanical locking measure that has, have be subjected to structural limitations, have can not reuse, also have structure is had certain weakening.To sum up, at existing locking thread present situation, there are various drawbacks.
Also occurred the Tang Shi self-locking nut in addition, it uses positive and negative rotation direction screw thread double nuts structure, and it is more that its nut total height increases, and bolt is non-tender, moment is loaded with certain requirement, operation inconvenience.In addition, also having a kind of is Accentric self locking nut, and it is fastening to make bolt produce to radially bend.
The model utility content
The purpose of this utility model provides a kind of self-locking anti-loosen screw nut component, be subjected to structural limitations, can not reuse to solve existing locking thread method, be not suitable in heavy duty, vibrate big occasion use and self-locking nut operation inconvenience, the fastening problem that makes that bolt produces and radially bends.
The utility model is to address the above problem the technological scheme of taking to be: self-locking anti-loosen screw nut component described in the utility model is made up of mother nut, elastic element and secondary nut; Mother nut and secondary nut are respectively equipped with and bolted first interior threaded hole, secondary nut sleeve is contained on the mother nut, and the two is by being threaded, the two thread rotary orientation that is connected of mother nut and secondary nut is opposite with bolted thread rotary orientation with mother nut and secondary nut, and elastic element is arranged between mother nut and the secondary nut.
The beneficial effects of the utility model are: self-locking anti-loosen screw nut component of the present utility model is the lock nut of frictionally self-locking, and frictional force is can be because of vibration, overload etc. not former thereby reduce, reached good using effect, and need not use nonstandard bolt, become one structure after the assembling of self-locking anti-loosen screw nut component and be convenient to transportation, easy to operate when fastening.Therefore, the utility model has fundamentally solved many deficiencies that existing nut anti-looseness exists, its reasonable in design, have convenient disassembly, repeated use, locking reliable, screw thread is stressed evenly, not limited by any service condition; Fasteningly advantage such as make bolt not produce to radially bend, significantly improve its self-locking property and working life.The utility model is mainly used in judder and can't adds the important occasion that is threaded of pretightening force.
Description of drawings
Fig. 1 is plan view of the present utility model (half section), Fig. 2 is the plan view of Fig. 1, Fig. 3 is the main sectional view of user mode of the present utility model, Fig. 4 is the plan view (half section) of mother nut 1, Fig. 5 is the plan view of Fig. 4, Fig. 6 is the plan view (half section) of secondary nut 3, and Fig. 7 is the plan view of Fig. 6.
Embodiment
Embodiment one: in conjunction with Fig. 1～Fig. 7 explanation, the self-locking anti-loosen screw nut component of present embodiment is made up of mother nut 1, elastic element 2 and secondary nut 3; Mother nut 1 is respectively equipped with first interior threaded hole 7 that is connected with bolt 4 with secondary nut 3, secondary nut 3 is sleeved on the mother nut 1, and the two is by being threaded, mother nut 1 is opposite with the thread rotary orientation that bolt 4 is connected with secondary nut 3 with mother nut 1 with secondary nut 3 the two thread rotary orientation that are connected, and elastic element 2 is arranged between mother nut 1 and the secondary nut 3.
Embodiment two: in conjunction with Fig. 1, Fig. 2 and Fig. 4～Fig. 7 explanation, the two makes one and forms the profile of the mother nut 1 of present embodiment by positive hexagonal prism and cylindrical body, the cross-section area of the positive hexagonal prism of mother nut 1 is greater than cylindrical cross-section area, the profile of secondary nut 3 is positive hexagonal prism, the positive hexagonal prism cross-section area of secondary nut 3 is identical with the positive hexagonal prism cross-section area of mother nut 1, secondary nut 3 is provided with second interior threaded hole 8 and withdrawing annular groove 9, withdrawing annular groove 9 is arranged between first interior threaded hole 7 and second interior threaded hole 8 on the secondary nut 3, first interior threaded hole 7 and the 8 coaxial settings of second interior threaded hole on the secondary nut 3, the aperture of first interior threaded hole 7 on the secondary nut 3 is less than the aperture of second interior threaded hole 8, the thread rotary orientation of second interior threaded hole 8 is opposite on the thread rotary orientation of first interior threaded hole 7 on mother nut 1 and the secondary nut 3 and the secondary nut 3, the cylindrical outer side wall of mother nut 1 be provided with secondary nut 3 on the identical outside thread of thread rotary orientation of second interior threaded hole 8, cylindrical body one end of mother nut 1 is arranged in second interior threaded hole 8 of secondary nut 3, and the two is threaded, elastic element 2 is sleeved on the cylindrical body of mother nut 1, and between the shoulder end face of the lower end surface of secondary nut 3 and mother nut 1.Other is identical with embodiment one.
Embodiment three: in conjunction with Fig. 1 explanation, the elastic element 2 of present embodiment is elastic washer, individual layer ripple circle, belleville spring or high polymer elastic circle.Other is identical with embodiment one or two.
Add man-hour, outside first interior threaded hole 7 of mother nut 1 and secondary nut 3 and the positive hexagonal prism of mother nut 1 and secondary nut 3 are not processed, after all the other are processed into, with mother nut 1 be connected with secondary nut 3 fastening after, the positive hexagonal prism (external shape) of reprocessing mother nut 1 and secondary nut 3 and first interior threaded hole 7 that is connected with bolt 4, behind the processed finished products elastic element 2 packed into mother nut 1 and secondary nut 3 neutral positions are connected mother nut 1 fastening and mother nut 1 are alignd with the positive hexagonal prism (outer six sides) of secondary nut 3 with secondary nut 3.In transportation process, remain integral mechanism like this, guarantee that mother nut 1 is corresponding with secondary nut 3 tooth forms, provide convenience to use.
Working principle:
As shown in Figure 3, under the self-locking anti-loosen screw nut component original state, elastic element 2 is in compressive state, when the self-locking anti-loosen screw nut component by bolt 4 first link 5 is connected with second link 6 fastening after, secondary nut 3 is continued angle of rotation, and screw threads that both connect because of mother nut 1, secondary nut 3 are opposite with bolt 4 thread rotary orientations, make mother nut 1, the increasing of secondary nut 3 axial distances, thereby increase frictional force between secondary nut 3 and the bolt 4, and then reach locking purpose; Again because of being provided with elastic element 2 in the middle of mother nut 1, the secondary nut 3, after mother nut 1, secondary nut 3 axial distances increase, elastic element 2 ejects, do not having under the external force effect situation, be not enough to make secondary nut 3 to turn round compression elastic elements 2 by vibration and other factor, so the frictional force between secondary nut 3 and the bolt 4 in use can not reduce, and has reached good anti-loosing effect; Because of secondary nut 3 outside tensile bolts 4, also increased the frictional force between mother nut 1 and the bolt 4 simultaneously.
When needs are dismantled, if with secondary nut 3 when the self-locking opposite spin causes the self-locking anti-loosen screw nut component and is back to original state, can take off.
Claims (3)
1. self-locking anti-loosen screw nut component, described assembly is made up of mother nut (1), elastic element (2) and secondary nut (3); Mother nut (1) is respectively equipped with first interior threaded hole (7) that is connected with bolt (4) with secondary nut (3), it is characterized in that: secondary nut (3) is sleeved on the mother nut (1), and the two is by being threaded, mother nut (1) is opposite with the thread rotary orientation that bolt (4) is connected with secondary nut (3) with mother nut (1) with the two thread rotary orientation that is connected of secondary nut (3), and elastic element (2) is arranged between mother nut (1) and the secondary nut (3).
2. self-locking anti-loosen screw nut component according to claim 1, it is characterized in that: the two makes one and forms the profile of mother nut (1) by positive hexagonal prism and cylindrical body, the cross-section area of the positive hexagonal prism of mother nut (1) is greater than cylindrical cross-section area, the profile of secondary nut (3) is positive hexagonal prism, the positive hexagonal prism cross-section area of secondary nut (3) is identical with the positive hexagonal prism cross-section area of mother nut (1), secondary nut (3) is provided with second interior threaded hole (8) and withdrawing annular groove (9), withdrawing annular groove (9) is arranged between first interior threaded hole (7) and second interior threaded hole (8) on the secondary nut (3), first interior threaded hole (7) and the coaxial setting of second interior threaded hole (8) on the secondary nut (3), the aperture of first interior threaded hole (7) on the secondary nut (3) is less than the aperture of second interior threaded hole (8), the thread rotary orientation of first interior threaded hole (7) on mother nut (1) and the secondary nut (3) is opposite with the thread rotary orientation of last second interior threaded hole of secondary nut (3) (8), the cylindrical outer side wall of mother nut (1) be provided with secondary nut (3) on the identical outside thread of thread rotary orientation of second interior threaded hole (8), cylindrical body one end of mother nut (1) is arranged in second interior threaded hole (8) of secondary nut (3), and the two is threaded, elastic element (2) is sleeved on the cylindrical body of mother nut (1), and is positioned between the shoulder end face of the lower end surface of secondary nut (3) and mother nut (1).
3. self-locking anti-loosen screw nut component according to claim 1 and 2 is characterized in that: elastic element (2) is elastic washer, individual layer ripple circle, belleville spring or high polymer elastic circle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200502758U CN201908932U (en) | 2011-02-28 | 2011-02-28 | Self-locking locknut assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200502758U CN201908932U (en) | 2011-02-28 | 2011-02-28 | Self-locking locknut assembly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201908932U true CN201908932U (en) | 2011-07-27 |
Family
ID=44301135
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200502758U Expired - Fee Related CN201908932U (en) | 2011-02-28 | 2011-02-28 | Self-locking locknut assembly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201908932U (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102312899A (en) * | 2011-08-24 | 2012-01-11 | 成都科盛石油科技有限公司 | Fixing device with bidirectional threads |
| CN105041829A (en) * | 2015-08-25 | 2015-11-11 | 钟跃荣 | Lock nut and using method |
| CN106763088A (en) * | 2016-12-23 | 2017-05-31 | 王志彬 | Synchronous mode double thread is connected and locking technical method |
| CN107725566A (en) * | 2017-11-30 | 2018-02-23 | 张小龙 | Check bolt nut structure assembly |
| CN108533600A (en) * | 2018-06-10 | 2018-09-14 | 汪友根 | A kind of positive and negative silk tooth nut structure |
| CN108799305A (en) * | 2017-04-26 | 2018-11-13 | 林志厚 | A kind of connection method of pairs of anti-loose nut bolt |
| CN109139674A (en) * | 2018-11-16 | 2019-01-04 | 襄阳五二五泵业有限公司 | A kind of anti-disassembling nut |
| CN109268380A (en) * | 2018-11-23 | 2019-01-25 | 航天精工股份有限公司 | A kind of derotation is to screw-threaded coupling combination nut |
| CN109882486A (en) * | 2019-03-14 | 2019-06-14 | 贵州精立航太科技有限公司 | A kind of Miniature nonmetallic mosaic self locking nut |
| CN109899370A (en) * | 2019-01-18 | 2019-06-18 | 郑州轻工业学院 | A kind of Anti-loosening nut external member |
| CN110925288A (en) * | 2019-12-13 | 2020-03-27 | 成都理工大学 | Quick and reliable locknut suit |
| CN111271364A (en) * | 2020-03-23 | 2020-06-12 | 安徽恒意硬面工程股份有限公司 | Locking nut assembly, nut locking device and nut locking method |
| CN112703325A (en) * | 2018-09-13 | 2021-04-23 | 宾工程工厂公司 | Multi-fastening fastener insert |
| CN113218554A (en) * | 2021-04-30 | 2021-08-06 | 黄光清 | Suspension bridge cable clamp screw axial force detection device and detection method thereof |
| CN111271364B (en) * | 2020-03-23 | 2024-06-04 | 山东旭隆特新材料科技发展有限公司 | Lock nut assembly, nut locking device and nut locking method |
-
2011
- 2011-02-28 CN CN2011200502758U patent/CN201908932U/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102312899A (en) * | 2011-08-24 | 2012-01-11 | 成都科盛石油科技有限公司 | Fixing device with bidirectional threads |
| CN105041829A (en) * | 2015-08-25 | 2015-11-11 | 钟跃荣 | Lock nut and using method |
| CN105041829B (en) * | 2015-08-25 | 2018-01-02 | 钟跃荣 | A kind of stop nut and application method |
| CN106763088A (en) * | 2016-12-23 | 2017-05-31 | 王志彬 | Synchronous mode double thread is connected and locking technical method |
| CN108799305A (en) * | 2017-04-26 | 2018-11-13 | 林志厚 | A kind of connection method of pairs of anti-loose nut bolt |
| CN107725566A (en) * | 2017-11-30 | 2018-02-23 | 张小龙 | Check bolt nut structure assembly |
| CN108533600A (en) * | 2018-06-10 | 2018-09-14 | 汪友根 | A kind of positive and negative silk tooth nut structure |
| CN112703325A (en) * | 2018-09-13 | 2021-04-23 | 宾工程工厂公司 | Multi-fastening fastener insert |
| CN112703325B (en) * | 2018-09-13 | 2022-11-11 | 宾工程工厂公司 | Two-piece fastener |
| CN109139674A (en) * | 2018-11-16 | 2019-01-04 | 襄阳五二五泵业有限公司 | A kind of anti-disassembling nut |
| CN109268380A (en) * | 2018-11-23 | 2019-01-25 | 航天精工股份有限公司 | A kind of derotation is to screw-threaded coupling combination nut |
| CN109899370A (en) * | 2019-01-18 | 2019-06-18 | 郑州轻工业学院 | A kind of Anti-loosening nut external member |
| CN109882486A (en) * | 2019-03-14 | 2019-06-14 | 贵州精立航太科技有限公司 | A kind of Miniature nonmetallic mosaic self locking nut |
| CN110925288A (en) * | 2019-12-13 | 2020-03-27 | 成都理工大学 | Quick and reliable locknut suit |
| CN110925288B (en) * | 2019-12-13 | 2023-03-14 | 成都理工大学 | Quick and reliable locknut suit |
| CN111271364A (en) * | 2020-03-23 | 2020-06-12 | 安徽恒意硬面工程股份有限公司 | Locking nut assembly, nut locking device and nut locking method |
| CN111271364B (en) * | 2020-03-23 | 2024-06-04 | 山东旭隆特新材料科技发展有限公司 | Lock nut assembly, nut locking device and nut locking method |
| CN113218554A (en) * | 2021-04-30 | 2021-08-06 | 黄光清 | Suspension bridge cable clamp screw axial force detection device and detection method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110727 Termination date: 20140228 |