CN2342159Y - Anti-loose device for nut - Google Patents
Anti-loose device for nut Download PDFInfo
- Publication number
- CN2342159Y CN2342159Y CN 96204446 CN96204446U CN2342159Y CN 2342159 Y CN2342159 Y CN 2342159Y CN 96204446 CN96204446 CN 96204446 CN 96204446 U CN96204446 U CN 96204446U CN 2342159 Y CN2342159 Y CN 2342159Y
- Authority
- CN
- China
- Prior art keywords
- nut
- lock washer
- lockwashers
- groove
- ratchet
- 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 - Fee Related
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- Bolts, Nuts, And Washers (AREA)
Abstract
The utility model relates to an anti-loosing device for a nut. The utility model comprises a screw bolt and a nut. The improvement of the utility model is that a pair of lockwashers is sheathed on the screw bolt; the lockwashers are all circular dish-shaped; one surfaces of the lockwashers are provided with ratchets, and the back surfaces of the lockwashers have tenons; a groove is arranged on the nut; a groove is arranged on a fastening piece which is connected. When the utility model is used, the obverse surfaces of the two lockwashers are opposite, and the tenons of the back surfaces of the lockwashers are respectively jogged with the groove of the nut and the groove of the fastening piece. The inclined direction of the ratchets determines the condition that the lockwashers can only rotate right; when the lockwashers rotate left, the lockwashers are stopped by the ratchets. The anti-loosing purpose of the nut can be reached.
Description
The utility model is that a kind of connecting bolt nut that prevents is being hit, is producing when vibrating loosening device.
Machine connects fastening under many circumstances with bolt, it is loosening easily and influence the normal operation of machine that it is hit, vibrates the connecting bolt at position.
For addressing this problem, normally adopt hand inspection and adopt some anti-release member, as: Chemical Industry Press's second edition＜mechanical design handbook in 1979〉listed several anti-loose methods.But some connecting bolt can not running check, and＜mechanical design handbook on several anti-loose methods or unreliable, or can not make nut fastening in the optimum position.
The purpose of this utility model provides a kind of nut anti-looseness device.It can prevent reliably nut be hit, loosening and make nut fastening under the rough sledding such as vibration in the optimum position.
The purpose of this utility model is achieved in that
Place a pair of lock washer between the nut of connecting bolt and connected machine fastening piece, packing ring be dish-shaped, the front be from the center of circle to circumferencial direction radiation ratchet, a tenon is left at the back side, its basic structure is:
A kind of nut anti-looseness device, it comprises spiral shell inspection and nut, its improvement is also to be with a pair of lock washer on bolt, described lock washer is the ring-type dish, the front is to the radiation ratchet of circumferencial direction from the center of circle, tenon is left at the back side of lock washer, is provided with groove on nut, also has groove on connected machine fastening piece.
Two packing rings are positive relatively during use, the tenon at the back side respectively with nut and machine fastening piece on groove chimeric.The true dip direction of ratchet determined between two packing rings and can only rotate to the dextrorotation direction, will be when left-handed by ratchet stop, thus reach the purpose of nut anti-looseness.
Lock washer in the utility model is copied the click principle, and anti-loosing effect is very reliable, and two packing ring ratchets are a plurality of even distributions, guarantees that nut can screw in the optimum position.
The concrete structure of model utility is provided by following examples and accompanying drawing.
Fig. 1 is according to the nut anti-looseness device installation diagram that the utility model proposes;
Fig. 2 is the front view of lock washer;
Fig. 3 is the sectional view of lock washer;
Fig. 4 is the A-A partial sectional view of lock washer;
Fig. 5 is the nut front view;
Fig. 6 is the nut sectional view.
Below in conjunction with details and the working condition of description of drawings according to the concrete device that the utility model proposes:
Consult Fig. 2, Fig. 3, Fig. 4, the shape of lock washer 3, lock washer 4 is the same with structure, i.e. even 12 ratchets of distribution on each packing ring end face, and these ratchets become radial arrangement from the center of circle to circumferencial direction, and evenly distribute along circumference.
The angle of ratchet and back side plane is 7 degree, and ratchet pushes up tooth root by processing counterclockwise, and the direction of ratchet is left-handed, when being about to direction that lock washer makes progress by ratchet and keeping flat, ratchet to be shaped as a left side high right low.Lock washer is shaped as dish, and it is upwards recessed that promptly packing ring has the one side of ratchet, and among the embodiment that Fig. 3 draws, its spherical radius is 300 millimeters.
Consult Fig. 5, nut part figure shown in Figure 6, be processed with groove 9 on an end face of nut, the groove shown in the figure is wide to be 3.5 millimeters, be 2.5 millimeters deeply, nut be 34.6 millimeters to angular length, screwhole diameter is 20 millimeters.
The drawn scheme of installation of this anti-pin device of Fig. 1, it comprises a bolt 1, nut 2, locking pad pad 3, lock washer 4, fastening piece 5, lock washer all has ratchet 6, also has tenon 7 and tenon 8 respectively, and the one side of nut 2 has groove 9, also has groove 10 on the machine fastening piece 5.
During installation, lock washer 3,4 is used relatively, lock washer 4 can not be rotated, lock washer 3 is rotated 9 embeddings of tenon 7 alignment indentation with nut 2, overcome the sliding friction between the lock washer 3,4 during the dextrorotation fastening nut; When left-handed (becoming flexible) trend, the ratchet of lock washer 3,4 stops it left-handed, thereby plays the loosening effect that prevents.
Tighter when two lock washer tooth tops contact, more loose phenomenon after the engagement, lock washer is a dish, eliminates it with resiliently deformable.Ratchet evenly distributes along circumference and makes the nut can be fastening in the optimum position.
Claims (4)
1. nut anti-looseness device, it comprises screw bolt and nut, it is characterized in that, also be with lock washer [3] and lock washer [4] on bolt 1, described lock washer is the ring-type dish, and the front is to the radiation ratchet [6] of circumferencial direction from the center of circle, leave tenon [7] at the back side of lock washer [3], leave tenon [8] at the back side of lock washer [4], on nut [2], be provided with groove [9], on connected fastening piece [5], have groove [10].
2. locking device according to claim 1 is characterized in that, ratchet [6] evenly distributes along the circumference of lock washer.
3. locking device according to claim 2 is characterized in that, ratchet [6] is 7 degree with the angle on lock washer plane.
4. locking device according to claim 3 is characterized in that, the direction of ratchet [6] is left-handed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96204446 CN2342159Y (en) | 1996-02-14 | 1996-02-14 | Anti-loose device for nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96204446 CN2342159Y (en) | 1996-02-14 | 1996-02-14 | Anti-loose device for nut |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2342159Y true CN2342159Y (en) | 1999-10-06 |
Family
ID=33889685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96204446 Expired - Fee Related CN2342159Y (en) | 1996-02-14 | 1996-02-14 | Anti-loose device for nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2342159Y (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100376811C (en) * | 2004-02-27 | 2008-03-26 | 刘玉恩 | Method of locking fastening device with screw thread and equipment |
| US8177455B2 (en) | 2006-09-08 | 2012-05-15 | General Electric Company | Quick connect lobed fastener system |
| WO2012174951A1 (en) * | 2011-06-21 | 2012-12-27 | 北汽福田汽车股份有限公司 | Bolt set |
| CN103398077A (en) * | 2013-07-30 | 2013-11-20 | 苏州天华有色金属制品有限公司 | Fastening component |
| CN105134745A (en) * | 2015-10-19 | 2015-12-09 | 上海格姆特紧固技术有限公司 | Double-layer dish tooth surface combination gasket |
| CN105952763A (en) * | 2016-07-20 | 2016-09-21 | 苏州福莱盈电子有限公司 | Fixing component for rotation stopping of circuit board |
| CN107542980A (en) * | 2016-06-24 | 2018-01-05 | 中船重工海博威（江苏）科技发展有限公司 | A kind of traveling nut is connected device |
| CN108691876A (en) * | 2018-06-13 | 2018-10-23 | 江西昌河航空工业有限公司 | A kind of anti-loose screw threads for fastening structure |
| CN108757687A (en) * | 2018-06-29 | 2018-11-06 | 李志刚 | A kind of not Unscrewed screw nut |
| CN110126680A (en) * | 2019-04-30 | 2019-08-16 | 扬州市金诺尔不锈钢有限公司 | A kind of high-speed railway touching net fastener |
| CN113067302A (en) * | 2021-03-10 | 2021-07-02 | 国网浙江省电力有限公司湖州供电公司 | Universal insulated wire cross fixing wire clamp |
| CN114033785A (en) * | 2021-09-30 | 2022-02-11 | 国网新疆电力有限公司检修公司 | Take locking nut assembly that moves of tenon fourth of twelve earthly branches structure of tenon screw |
-
1996
- 1996-02-14 CN CN 96204446 patent/CN2342159Y/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100376811C (en) * | 2004-02-27 | 2008-03-26 | 刘玉恩 | Method of locking fastening device with screw thread and equipment |
| US8177455B2 (en) | 2006-09-08 | 2012-05-15 | General Electric Company | Quick connect lobed fastener system |
| WO2012174951A1 (en) * | 2011-06-21 | 2012-12-27 | 北汽福田汽车股份有限公司 | Bolt set |
| CN103398077A (en) * | 2013-07-30 | 2013-11-20 | 苏州天华有色金属制品有限公司 | Fastening component |
| CN105134745A (en) * | 2015-10-19 | 2015-12-09 | 上海格姆特紧固技术有限公司 | Double-layer dish tooth surface combination gasket |
| CN107542980A (en) * | 2016-06-24 | 2018-01-05 | 中船重工海博威（江苏）科技发展有限公司 | A kind of traveling nut is connected device |
| CN105952763A (en) * | 2016-07-20 | 2016-09-21 | 苏州福莱盈电子有限公司 | Fixing component for rotation stopping of circuit board |
| CN108691876A (en) * | 2018-06-13 | 2018-10-23 | 江西昌河航空工业有限公司 | A kind of anti-loose screw threads for fastening structure |
| CN108757687A (en) * | 2018-06-29 | 2018-11-06 | 李志刚 | A kind of not Unscrewed screw nut |
| CN110126680A (en) * | 2019-04-30 | 2019-08-16 | 扬州市金诺尔不锈钢有限公司 | A kind of high-speed railway touching net fastener |
| CN113067302A (en) * | 2021-03-10 | 2021-07-02 | 国网浙江省电力有限公司湖州供电公司 | Universal insulated wire cross fixing wire clamp |
| CN114033785A (en) * | 2021-09-30 | 2022-02-11 | 国网新疆电力有限公司检修公司 | Take locking nut assembly that moves of tenon fourth of twelve earthly branches structure of tenon screw |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CU03 | Correction of utility model patent gazette |
Correction item: Termination of patent right Correct: Restore False: Termination Number: 13 Page: 177 Volume: 17 |
|
| ERR | Gazette correction |
Free format text: CORRECT: CESSATION OF PATENT RIGHT; FROM: TERMINATION TO: RECOVERY |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |