CN2187701Y - Spring screw nut locking chip - Google Patents
Spring screw nut locking chip Download PDFInfo
- Publication number
- CN2187701Y CN2187701Y CN 94205206 CN94205206U CN2187701Y CN 2187701 Y CN2187701 Y CN 2187701Y CN 94205206 CN94205206 CN 94205206 CN 94205206 U CN94205206 U CN 94205206U CN 2187701 Y CN2187701 Y CN 2187701Y
- Authority
- CN
- China
- Prior art keywords
- locking plate
- locking
- screw nut
- chip
- nut
- 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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- Connection Of Plates (AREA)
Abstract
The utility model relates to a spring screw nut locking chip used for locking a screw nut on the upper part of the screw nut and preventing the screw nut from loosing. The utility model is an annular spring chip with a nick; the middle part of a locking chip is bent into a Z-shaped elastic deformation zone which is matched with a locked bolt. The right and the left parts of the locking chip are staggered with each other in a distance of one thread pitch, and the middle part of the locking chip is made into omega shape for the convenience of spanning screw thread. The spring screw nut locking chip overcomes the disadvantages that the existing spring washer has small locking strength and is easy to loose. The utility model has the advantages of strong anti-loosing effect, free from the influence of vibration or climatic condition, rare deformation, convenient installation, easy manufacture, etc.
Description
The utility model relates to a kind of fastening piece, is specially adapted to prevent the loosening of nut.
In the fastening connection of bolt, nut, usually, cause the accident because machine vibration makes nut loosening.In order to prevent the loosening of nut, general at present employing spring washer, the modes such as a mouthful lock pad, locking nut of putting down are locked.Adopt the spring washer coupling mechanism force little, and it is affected by environment, to requiring the big privileged sites of coupling mechanism force, have only the size and the amount of deformation that increase spring washer just can meet the demands, so not only increase cost, and the time also can damage spring washer and nut in dismounting, also all exist shortcomings such as poor reliability, coupling mechanism force deficiency, complex structure, use inconvenience with other part of locking of other form.
The purpose of this utility model is the shortcoming that overcomes prior art, and a kind of elastic nut locking plate is provided, and at nut upper lock jack panel, prevents nut loosening with spring sheet trip ring.
The technical solution of the utility model is achieved in that a kind of elastic nut locking plate, its special way is that locking plate is an annular spring leaf that has breach, bolt Z-shaped elastic deformation area that locking plate middle bent Cheng Yuqi bolt is complementary by locking, make stagger the up and down distance of a pitch of two positions about locking plate, for crossing over screw thread the Ω type is made at the locking plate middle part, locking plate thickness is less than a pitch of screw thread, in the both sides of locking plate breach a special tool jack for dismounting is arranged respectively, locking plate adopts alloy-steel plate to make.
The advantage that the utility model is compared with prior art had is: the elastic nut locking plate has improved to have now and adopted the locking mode that compresses the split ring packing ring under nut, adopted the method for opening locking plate at nut upper lock jack panel, it is the significant improvement of locking mode, the coupling mechanism force that it has overcome the existence of holddown spring packing ring is little, shortcoming such as easily loosening, it is strong that the locking plate that provides has locking power, do not vibrated, metal, cheap, dismounting advantage such as easy can be repeatedly used, be saved in the influence of weather conditions.
Now describe the utility model most preferred embodiment in conjunction with the accompanying drawings in detail:
Fig. 1 is an elastic nut locking plate structural representation
Fig. 2 is an elastic nut locking plate A-A sectional drawing
Fig. 3 uses installation diagram for the elastic nut locking plate
1. locking plate 2. special tool jacks 3. breach 4. locking plate left sides
5. locking plate middle part 6. locking plate right-hand parts 7. bolts 8. nuts
The structure of elastic nut locking plate such as Fig. 1,2, shown in 3, locking plate 1 is that an annular that has breach 3 has spring sheet, bolt 7 by locking bends to the middle part 5 of locking plate 1 the Z type elastic deformation area who is complementary with its bolt 7, make the lock 1 about two positions 4,6 distances that stagger a pitch up and down, cross over screw thread for ease of locking plate 1, the Ω type is made at locking plate middle part 5, locking plate 1 thickness is less than a pitch of screw thread, breach 3 both sides of locking plate 1 respectively have one for dismantling the special tool jack 2 that locking plate is used, select suitable thick alloy-steel plate according to different bolt 7 lock objects, pitch and standard by different bolts 7 are made serial locking plate, and the bending direction up and down that changes the locking plate elastic deformation area is applicable to various left-handed and dextrorotation bolts.
Elastic collet uses when installing, locking plate 1 lock tube on the internal diameter of bolt 7 screw threads, abut against on the exterior edge face of nut 8, as shown in Figure 3, when beginning is just adorned, can borrow the free-hand locking plate that is torqued into of spiral shell button, when near after the fastening nut that puts in place 8, insert in the jack 2 of locking plate with special tool again, locking plate 1 is applied enough pretightening forces, make locking plate 1 near on the nut 8, just can reach locking purpose.
If the generation nut loosening also moves back when detaining,, can prevent fully to move back to detain and become flexible in the Elastic Contact district formation extruding force of nut 8 with locking plate 1.Locking plate is difficult to expanding, and is also not yielding, can not together rotate with nut again, has extremely strong coupling mechanism force.
Claims (4)
1, a kind of being used for prevents the elastic nut locking plate that becomes flexible at nut upper lock jack panel, it is characterized in that locking plate is an annular spring leaf that has breach, bolt Z type elastic deformation area that the middle bent Cheng Yuqi bolt of locking plate is complementary by locking, make locking plate about stagger the up and down distance of a pitch of two positions, for ease of crossing over screw thread, the Ω type is made at the locking plate middle part.
2, locking plate according to claim 1 is characterized in that respectively there is a special tool jack for dismounting usefulness the breach both sides of locking plate.
3, locking plate according to claim 1 is characterized in that the pitch of the thickness of locking plate less than its screw thread.
4, locking plate according to claim 1 is characterized in that locking plate adopts alloy steel material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94205206 CN2187701Y (en) | 1994-03-26 | 1994-03-26 | Spring screw nut locking chip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94205206 CN2187701Y (en) | 1994-03-26 | 1994-03-26 | Spring screw nut locking chip |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2187701Y true CN2187701Y (en) | 1995-01-18 |
Family
ID=33824196
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94205206 Expired - Fee Related CN2187701Y (en) | 1994-03-26 | 1994-03-26 | Spring screw nut locking chip |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2187701Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101900522A (en) * | 2009-05-25 | 2010-12-01 | 鸿富锦精密工业（深圳）有限公司 | Detection device for distance between centers of two holes |
| WO2013082840A1 (en) * | 2011-12-06 | 2013-06-13 | 兰州西脉记忆合金股份有限公司 | Self-pressurized resilient gasket |
| CN107208688A (en) * | 2014-12-10 | 2017-09-26 | 株式会社ＮｅｊｉＬａｗ | Nut body and screw thread attachment structure |
-
1994
- 1994-03-26 CN CN 94205206 patent/CN2187701Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101900522A (en) * | 2009-05-25 | 2010-12-01 | 鸿富锦精密工业（深圳）有限公司 | Detection device for distance between centers of two holes |
| WO2013082840A1 (en) * | 2011-12-06 | 2013-06-13 | 兰州西脉记忆合金股份有限公司 | Self-pressurized resilient gasket |
| CN107208688A (en) * | 2014-12-10 | 2017-09-26 | 株式会社ＮｅｊｉＬａｗ | Nut body and screw thread attachment structure |
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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 |