CN204387070U - Boats and ships backing-up screw - Google Patents
Boats and ships backing-up screw Download PDFInfo
- Publication number
- CN204387070U CN204387070U CN201520028671.9U CN201520028671U CN204387070U CN 204387070 U CN204387070 U CN 204387070U CN 201520028671 U CN201520028671 U CN 201520028671U CN 204387070 U CN204387070 U CN 204387070U
- Authority
- CN
- China
- Prior art keywords
- screw
- steel ball
- compress spring
- threaded stem
- blind hole
- 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
Links
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 21
- 239000010959 steel Substances 0.000 claims abstract description 21
- 230000000694 effects Effects 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 description 3
- 241000731961 Juncaceae Species 0.000 description 2
- 230000000903 blocking Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 210000003128 Head Anatomy 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
Abstract
The utility model relates to screw technique field, especially a kind of boats and ships backing-up screw, comprise threaded stem and nut, the top of threaded stem is provided with blind hole, Compress Spring is provided with in blind hole, the top of Compress Spring is provided with steel ball and steel ball is positioned at the aperture place of blind hole, the diameter in aperture is slightly less than the diameter of steel ball, by arranging Compress Spring and steel ball on threaded stem top, when screw screws, steel ball can be extruded, on the one hand because the elastic force of Compress Spring will make to fit tightly between screw thread, add the frictional force between screw thread, the existence of elastic force is also equivalent to the effect of elastic washer, the utility model effectively raises the anti-loose ability of screw, ensure that the safety reliability of screw.
Description
Technical field
The utility model relates to screw technique field, especially a kind of boats and ships backing-up screw.
Background technique
The working environment of boats and ships is general all more severe, all play an important role in screw various mechanical structures aboard ship, often cause the accident because a screw gets loose, first ship running safety reliability in ocean will ensure, in real work, external load has vibration, change, material at high temperature creep etc. that frictional force all can be caused to reduce, in screw pair, positive pressure is zero in a certain pop-off, frictional force, thus scyewed joint is loosened, as through repeated action, scyewed joint will relax and lose efficacy.
Model utility content
The technical problems to be solved in the utility model is: in order to solve the problem that screw gets loose, now provide a kind of boats and ships backing-up screw.
The utility model solves the technological scheme that its technical problem adopts: a kind of boats and ships backing-up screw, comprise threaded stem and nut, the top of described threaded stem is provided with blind hole, Compress Spring is provided with in described blind hole, the top of described Compress Spring is provided with steel ball and steel ball is positioned at the aperture place of blind hole, the diameter in described aperture is slightly less than the diameter of steel ball, its way rushes rivet hole mouth to make aperture material deformation reach the object of blocking aperture, when screw screws, the steel ball on threaded stem top can be extruded, make it fit tightly internal thread in tapped hole to one, the screw thread on screw power upwards simultaneously, increase frictional force between screw thread, on the other hand steel ball has owing to heading on Compress Spring the effect that elastic force is equivalent to elastic washer, effectively raise the anti-loose ability of screw.
Preferably, the screw thread on described threaded stem is trapezoidal thread.
Preferably, described nut is provided with counter sink, and the top of described counter sink is interior hexagonal.
The beneficial effects of the utility model are: boats and ships backing-up screw of the present utility model is by arranging Compress Spring and steel ball on threaded stem top, when screw screws, steel ball can be extruded, on the one hand because the elastic force of Compress Spring will make to fit tightly between screw thread, add the frictional force between screw thread, the existence of elastic force is also equivalent to the effect of elastic washer, the utility model effectively raises the anti-loose ability of screw, ensure that the safety reliability of screw.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated.
Fig. 1 is schematic diagram of the present utility model;
In figure: 1, counter sink, 2, nut, 3, threaded stem, 4, blind hole, 5, steel ball, 6, aperture, 7, Compress Spring.
Embodiment
By reference to the accompanying drawings the utility model is described in further detail now.These accompanying drawings are the schematic diagram of simplification, only basic structure of the present utility model are described in a schematic way, and therefore it only shows the formation relevant with the utility model.
Embodiment 1
A kind of boats and ships backing-up screw, comprise threaded stem 3 and nut 2, the top of threaded stem 3 is provided with blind hole 4, Compress Spring 7 is provided with in blind hole 4, the top of Compress Spring 7 is provided with steel ball 5 and steel ball 5 is positioned at aperture 6 place of blind hole 4, rushes rivet hole mouth 6, and the diameter that after making the material deformation in aperture 6, diameter is slightly less than steel ball 5 reaches the object of blocking aperture 6, nut 2 is provided with counter sink 1, and the top of counter sink 1 is interior hexagonal.
Embodiment 2
With the difference of embodiment 1, embodiment 2 is that the screw thread on threaded stem 3 is trapezoidal thread.
Working principle of the present utility model is set forth with embodiment 1:
When screw screws, the steel ball 5 on threaded stem 3 top can be extruded, make it fit tightly internal thread in tapped hole to one, the screw thread on screw power upwards simultaneously, increase frictional force between screw thread, on the other hand steel ball 5 heads on Compress Spring 7 and has the effect that elastic force is equivalent to elastic washer, effectively raises the anti-loose ability of screw.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff in the scope not departing from this model utility technological thought, can carry out various change and amendment completely.The technical scope of this model utility is not limited to the content on specification, must determine its technical scope according to right.
Claims (3)
1. a boats and ships backing-up screw, comprise threaded stem (3) and nut (2), it is characterized in that: the top of described threaded stem (3) is provided with blind hole (4), Compress Spring (7) is provided with in described blind hole (4), the top of described Compress Spring (7) is provided with steel ball (5) and steel ball (5) is positioned at aperture (6) place of blind hole (4), and the diameter of described aperture (6) is slightly less than the diameter of steel ball (5).
2. boats and ships backing-up screw according to claim 1, is characterized in that: the screw thread on described threaded stem (3) is trapezoidal thread.
3. boats and ships backing-up screw according to claim 2, is characterized in that: described nut (2) is provided with counter sink (1), and the top of described counter sink (1) is interior hexagonal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520028671.9U CN204387070U (en) | 2015-01-15 | 2015-01-15 | Boats and ships backing-up screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520028671.9U CN204387070U (en) | 2015-01-15 | 2015-01-15 | Boats and ships backing-up screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204387070U true CN204387070U (en) | 2015-06-10 |
Family
ID=53359793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520028671.9U Expired - Fee Related CN204387070U (en) | 2015-01-15 | 2015-01-15 | Boats and ships backing-up screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204387070U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065418A (en) * | 2015-09-02 | 2015-11-18 | 徐州工业职业技术学院 | Fastening screw device of vernier measuring tool |
| CN109499428A (en) * | 2018-11-22 | 2019-03-22 | 东台市高科技术创业园有限公司 | A kind of detachable electronics agitating device |
| CN109877615A (en) * | 2019-02-23 | 2019-06-14 | 宁波昌扬机械工业有限公司 | A kind of skylight guide rail fraise jig |
| CN110671413A (en) * | 2019-09-27 | 2020-01-10 | 陶金波 | Anti-loosening screw rod |
-
2015
- 2015-01-15 CN CN201520028671.9U patent/CN204387070U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105065418A (en) * | 2015-09-02 | 2015-11-18 | 徐州工业职业技术学院 | Fastening screw device of vernier measuring tool |
| CN109499428A (en) * | 2018-11-22 | 2019-03-22 | 东台市高科技术创业园有限公司 | A kind of detachable electronics agitating device |
| CN109877615A (en) * | 2019-02-23 | 2019-06-14 | 宁波昌扬机械工业有限公司 | A kind of skylight guide rail fraise jig |
| CN109877615B (en) * | 2019-02-23 | 2021-05-11 | 宁波昌扬机械工业有限公司 | Skylight guide rail milling machine fixture |
| CN110671413A (en) * | 2019-09-27 | 2020-01-10 | 陶金波 | Anti-loosening screw rod |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150610 Termination date: 20190115 |