CN2622459Y - Loosening preventing screw joining pair - Google Patents
Loosening preventing screw joining pair Download PDFInfo
- Publication number
- CN2622459Y CN2622459Y CN 03213237 CN03213237U CN2622459Y CN 2622459 Y CN2622459 Y CN 2622459Y CN 03213237 CN03213237 CN 03213237 CN 03213237 U CN03213237 U CN 03213237U CN 2622459 Y CN2622459 Y CN 2622459Y
- Authority
- CN
- China
- Prior art keywords
- utility
- loosening preventing
- model
- nut
- lock washer
- 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 belongs to the fastening piece field of machinery fundamental parts, specifically relating to a loosening preventing screw joining pair which is characterized in that the utility model comprises a bolt (1), a locknut (2), and a loosening preventing gasket (3). The lower carrying plane of the locknut (2) and the upper carrying plane of the loosening preventing gasket (3) are provided with ratchets (5) that are engaged with each other. The lift angle Alpha of the inclined plane of the ratchets (5) is more than the screw lift angle of the same specification nut (2). The utility model has the advantages of simple structure, easy operation and broad application which have a reliable loosening preventing effect.
Description
Affiliated technical field
The utility model belongs to machine foundation part-fastener areas, and particularly a kind of chek bolt connects secondary.
Background technique
The effect of fastening piece is with two or more objects connections, the fastening specific performance that is connected the object of fastening or installation with realization that is installed together with it.Thereby fastening piece is widely used in running mechanisms such as machine-building, railway, bridge, household electrical appliances, Aeronautics and Astronautics, navigation, automobile.Yet, the fastening piece of common standard and structure often is unable to bear connected piece (machinery, mechanism) and is in the long-term vibrations or the effect of alternate load, in negative labour process, taken place to become flexible, threaded off and then made and be fastenedly connected failure phenomenon, the equipment of Yin Faing, vehicle, human injury even serious accident often are reported in media therefrom, cause people's strong attention and vigilance.
The model utility content
It is a kind of simple in structure that technical problem to be solved in the utility model is to provide, simple operation, and the anti-loosing effect ideal adapts to wide chek bolt and connects secondary.
Technical solution of the present utility model can realize according to following mode:
A kind of chek bolt connects secondary, is characterized in containing: bolt, lock nut, lock washer; The following pressure-bearing surface of described lock nut and the last pressure-bearing surface of lock washer are provided with intermeshing ratchet.
Ratchet described in the utility model inclined-plane lift angle α is greater than the lead angle of same specification nut.
The following pressure-bearing surface of lock washer described in the utility model is furnished with several cusped edges; Described cusped edge can be right-angled triangle and evenly distributes along circumferential; Described lock washer can be provided with opening.
The utility model is simple in structure, and simple operation adapts to widely, has reliable anti-loosing effect.
Description of drawings
Fig. 1 is an overall structure schematic representation of the present utility model;
Fig. 2 is the utility model lock nut plan view;
Fig. 3 is the utility model Fig. 2 part side view;
Fig. 4 is the utility model lock washer plan view;
Fig. 5 is the utility model Fig. 4 part side view;
Embodiment
As shown in the figure, a kind of chek bolt connects secondary, and it contains: bolt 1, lock nut 2, lock washer 3; The following pressure-bearing surface of described lock nut 2 and the last pressure-bearing surface of lock washer 3 are provided with intermeshing ratchet 5.Described ratchet 5 inclined-plane lift angle α are greater than the lead angle of same specification nut 2.The following pressure-bearing surface of described lock washer 3 is furnished with several and is shaped as right-angled triangle and along circumferential equally distributed cusped edge 6; Described lock washer 3 is provided with opening 7.8 is fastened object.
The utility model utilizes under six square nuts of ordinary construction pressure-bearing surface and makes intermeshing plane ratchet 5 in the last pressure-bearing surface of six square nut profile pads equally, and ratchet 5 inclined-plane lift angles are greater than the lead angle of same specification nut.3 times pressure-bearing surfaces of hexagonal lock washer are then along the distribute right-angled triangle cusped edge of six proper width of six rib center lines, when nut screws clockwise, the hexagonal crest line is rubbing above the fastened object with its relief angle less than 20 degree, when screwing end, cusped edge (line) makes fastened body surface produce resiliently deformable under the effect of axial pressure, and makes the cusped edge line embed the upper surface of fastened object.
When in the using process or when wanting to unscrew this lock nut artificially, because pad is thin harder, spanner hole is difficult for blocking six of its six sides profile, pad is motionless-in other words, under long-term vibrations and changing load effect, when making nut begin to produce counterclockwise aspect loosening, also make owing to pad is motionless under the nut and produce relative movement between the tooth embedding inclined-plane on the pressure-bearing surface and pad, the inclined-plane lift angle of this relative movement is owing to be designed to that between produces the declinate degree that numerical value is very little greater than helix angle.According to the wedge theory, this " wedge " angle is more little, the positive pressure that on two inclined-planes of its " wedge ", produces just big more one this positive pressure on pad, pad is subjected to the axial force that presses down, make six cusped edges be pressed into fastened body surface more tightly, it is cannot moved, and act on lip-deep positive pressure of nut thread and bolt thread surface pressing, frictional force is further increased, up to the utility model by locked.
Claims (5)
1, a kind of chek bolt connects pair, it is characterized in that, contains: bolt (1), lock nut (2), lock washer (3); The last pressure-bearing surface of the following pressure-bearing surface of described lock nut (2) and lock washer (3) is provided with intermeshing ratchet (5).
2, chek bolt according to claim 1 connects pair, and it is characterized in that: described ratchet (5) inclined-plane lift angle α is greater than the lead angle of same specification nut (2).
3, chek bolt according to claim 1 and 2 connects pair, and it is characterized in that: the following pressure-bearing surface of described lock washer (3) is furnished with several cusped edges (6).
4, chek bolt according to claim 3 connects pair, it is characterized in that: described cusped edge is that right-angled triangle and edge circumferentially evenly distribute.
5, chek bolt according to claim 1 and 2 connects pair, and it is characterized in that: described lock washer (3) is provided with opening (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03213237 CN2622459Y (en) | 2003-05-23 | 2003-05-23 | Loosening preventing screw joining pair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03213237 CN2622459Y (en) | 2003-05-23 | 2003-05-23 | Loosening preventing screw joining pair |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2622459Y true CN2622459Y (en) | 2004-06-30 |
Family
ID=34242248
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03213237 Expired - Fee Related CN2622459Y (en) | 2003-05-23 | 2003-05-23 | Loosening preventing screw joining pair |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2622459Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108518403A (en) * | 2018-06-29 | 2018-09-11 | 四川省内江巨星水暖气五金器材厂 | Stop nut |
| CN109958703A (en) * | 2017-12-25 | 2019-07-02 | 比亚迪股份有限公司 | A kind of lock washer and preparation method thereof for threaded connector |
| WO2021189500A1 (en) * | 2020-03-26 | 2021-09-30 | 常飞鹏 | Anti-loosening nut supporting device |
-
2003
- 2003-05-23 CN CN 03213237 patent/CN2622459Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109958703A (en) * | 2017-12-25 | 2019-07-02 | 比亚迪股份有限公司 | A kind of lock washer and preparation method thereof for threaded connector |
| CN108518403A (en) * | 2018-06-29 | 2018-09-11 | 四川省内江巨星水暖气五金器材厂 | Stop nut |
| WO2021189500A1 (en) * | 2020-03-26 | 2021-09-30 | 常飞鹏 | Anti-loosening nut supporting device |
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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 |