CN102619846B - Clever nut - Google Patents
Clever nut Download PDFInfo
- Publication number
- CN102619846B CN102619846B CN201210093024.7A CN201210093024A CN102619846B CN 102619846 B CN102619846 B CN 102619846B CN 201210093024 A CN201210093024 A CN 201210093024A CN 102619846 B CN102619846 B CN 102619846B
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- CN
- China
- Prior art keywords
- nut
- cavity
- liquid crystal
- inducing layer
- clever
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- 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.)
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- Force Measurement Appropriate To Specific Purposes (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
Clever nut of the present invention, comprises nut body, it is characterized in that: the side of described body is provided with the inducing layer made with elastic apparent material, has a cavity, be full of piezochromic material in described cavity in described inducing layer.
Description
Technical field
The present invention relates to a kind of nut.
Background technique
Nut is conventional fastened tools, by threaded together for mechanical part provides fastening force.In many occasions of Automatic manual transmission, need the fastening force measuring nut more accurately.This needs complicated professional tool usually, such as, set the electric screw driver of moment of torsion.For the nut of different fastening force, just need the electric screw driver of different model, bother very much.
Therefore a kind of imagination is had: if nut inherently can reflect the size of fastening force, just without the need to being equipped with complicated instrument.But arranging the measuring instrument of power on slight nut, is very difficult.On the one hand can not in volume and the use affecting nut in shape, on the other hand because nut itself is low value product, measuring instrument can not introduce too high cost.
Summary of the invention
The present invention will overcome the above-mentioned deficiency of prior art, provide a kind of point out nut screwing clamping degree whether to reach fastening force threshold value and without the need to the nut of the circuit of complexity or the measuring instrument of mechanical structure.
Clever nut of the present invention, comprises nut body, it is characterized in that: the side of described body is provided with the inducing layer made with elastic apparent material, has a cavity, be full of piezochromic material in described cavity in described inducing layer.
Further, described piezochromic material pressure is more than just luminous during a safety pressure.
Inducing layer is that transparent elastic material such as polymethylmethacrylate is made, and inside has a cavity, is full of piezochromic material in described cavity, such as liquid crystal or liquid crystal compound.
When nut of the present invention is tightened by spanner, pressure is transmitted on this off-color material, when pressurized exceedes fastening force threshold value, causes this off-color material to produce optic response, such as, sends light, reminds user to stop tightening.Should, by load indicator elment without the need to ABAP Adapter, therefore facilitate durable.Without the need to circuit or the mechanical structure of complexity, profile does not affect the use of nut, be convenient to be combined with nut yet.
Advantage of the present invention is: the threshold value can reminding screwing force in time, easily; Inducing layer is easily combined with nut, does not affect the use of nut, and without the need to the circuit of complexity or mechanical structure.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present invention.
Fig. 2 is the partial enlarged drawing of Fig. 1.
Embodiment
Clever nut of the present invention, comprises nut body 1, it is characterized in that: the side of described body 1 is provided with the inducing layer 2 made with elastic apparent material, and have a cavity 3 in described inducing layer 2, in described cavity, 3 are full of piezochromic material.
Further, described piezochromic material pressure is more than just luminous during a safety pressure.
Inducing layer 2 is that transparent elastic material such as polymethylmethacrylate is made, and inside have a cavity 3, in described cavity, 3 are full of piezochromic material, such as liquid crystal or liquid crystal compound.
In the present embodiment, piezochromic material adopts liquid crystal cholesterol ester or its mixture.This material can from being positioned at United9, and the Hallcrest liquid crystal technology company of StepnellReach, 541BlandfordRoad, Hamworthy, Poole, DorsetBH165BW buys.The mixture that can obtain is not identical in color with physical property, comprise CN series, as CN/R1, CN/R2, CN/R3 and CN/G1, comprising the mixture of some cholesterol ester type liquid crystal, as cholesteryl nonanoate, cholesteric chloride, cholesteric oleyl carbonite, cholesteryl 2,4 dichlorobenzene.
When nut of the present invention is tightened by spanner, pressure is transmitted on this off-color material, when pressurized exceedes fastening force threshold value, causes this off-color material to produce optic response, such as, sends light, reminds user to stop tightening.Should, by load indicator elment without the need to ABAP Adapter, therefore facilitate durable.Without the need to circuit or the mechanical structure of complexity, profile does not affect the use of nut, be convenient to be combined with nut yet.
Protection scope of the present invention should not be regarded as being only limitted to the concrete form that embodiment states, protection scope of the present invention also and conceive the equivalent technologies means that can expect according to the present invention in those skilled in the art.
Claims (1)
1. a clever nut, comprises nut body, it is characterized in that: the side of described body is provided with the inducing layer made with elastic apparent material, has a cavity in described inducing layer, is full of piezochromic material liquid crystal cholesterol ester in described cavity; Described body pressure is transmitted on described piezochromic material liquid crystal cholesterol ester, when described body pressurized exceedes fastening force threshold value, causes the piezochromic material liquid crystal cholesterol ester in described cavity to produce optic response.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210093024.7A CN102619846B (en) | 2012-03-31 | 2012-03-31 | Clever nut |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210093024.7A CN102619846B (en) | 2012-03-31 | 2012-03-31 | Clever nut |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102619846A CN102619846A (en) | 2012-08-01 |
| CN102619846B true CN102619846B (en) | 2015-12-16 |
Family
ID=46559977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210093024.7A Active CN102619846B (en) | 2012-03-31 | 2012-03-31 | Clever nut |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102619846B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3537020A1 (en) * | 2018-03-09 | 2019-09-11 | General Electric Company | Visual torque indication for threaded joints |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9677592B2 (en) * | 2014-11-03 | 2017-06-13 | The Boeing Company | Witness enabled fasteners and related systems and methods |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201837476U (en) * | 2010-10-21 | 2011-05-18 | 杨红娟 | Heating monitoring nut for connecting positions of wires |
| CN201837470U (en) * | 2010-10-13 | 2011-05-18 | 马新全 | Heating monitoring nut for connecting position of wires |
| CN201925305U (en) * | 2011-03-02 | 2011-08-10 | 杜德机械科技(上海)有限公司 | Prestressed indicating bolt |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05280520A (en) * | 1992-03-30 | 1993-10-26 | Mitsubishi Electric Corp | Tightening parts |
| JPH06288847A (en) * | 1993-03-31 | 1994-10-18 | Hitachi Cable Ltd | Steel tower assembly bolt and method for measuring axial force of bolt |
| GB9902080D0 (en) * | 1999-01-29 | 1999-03-24 | Unilever Plc | Toothbrush |
| US7963692B2 (en) * | 2008-02-27 | 2011-06-21 | Flotime, LLC | Monitoring apparatus |
-
2012
- 2012-03-31 CN CN201210093024.7A patent/CN102619846B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201837470U (en) * | 2010-10-13 | 2011-05-18 | 马新全 | Heating monitoring nut for connecting position of wires |
| CN201837476U (en) * | 2010-10-21 | 2011-05-18 | 杨红娟 | Heating monitoring nut for connecting positions of wires |
| CN201925305U (en) * | 2011-03-02 | 2011-08-10 | 杜德机械科技(上海)有限公司 | Prestressed indicating bolt |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3537020A1 (en) * | 2018-03-09 | 2019-09-11 | General Electric Company | Visual torque indication for threaded joints |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102619846A (en) | 2012-08-01 |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |