CN206470005U - Self-closing self-shield pressure pulling force sensor - Google Patents
Self-closing self-shield pressure pulling force sensor Download PDFInfo
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- CN206470005U CN206470005U CN201720116764.6U CN201720116764U CN206470005U CN 206470005 U CN206470005 U CN 206470005U CN 201720116764 U CN201720116764 U CN 201720116764U CN 206470005 U CN206470005 U CN 206470005U
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- flexible member
- type groove
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- Measuring Fluid Pressure (AREA)
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Abstract
The utility model discloses a kind of self-closing self-shield pressure pulling force sensor; including flexible member and resistance strain gage; resistance strain gage is pasted onto the centre of flexible member; the transmission line being connected with resistance strain gage stretches out from flexible member; translot is formed above and below flexible member respectively; and above and below translot Z-type groove is formed on the left side and the right respectively, one end of Z-type groove connects corresponding translot, and the other end of Z-type groove connects the left and right edges of flexible member.The utility model can retain the function of existing S types pressure pulling force sensor; simultaneously; can by Z-type groove special construction; when pulling force or pressure are excessive, i.e., when more than preset value, at least one groove of Z-type groove is closed automatically; flexible member is set to enter from closed state; so as to effectively prevent flexible member from occurring excessive deformation, self-protection is consequently formed, it is to avoid lose the function of sensing pulling force and pressure.
Description
Technical field
The utility model is related to the structure-improved of pressure sensor, and more particularly to a kind of self-closing self-shield pressure pulling force is passed
Sensor.
Background technology
In the prior art, there is a kind of weighing sensor as shown in figure 1, being most commonly seen a kind of sensor in sensor,
It is mainly used in measuring the pulling force and pressure between solid, because its outer image S-shaped shape, traditionally people are referred to as S types
Pressure pulling force sensor, this sensor uses steel alloy material, and the processing of glue sealing protection installs easy, easy to use, it is adaptable to
Steelyard, burden balance, machine changes the electronics dynamometry weighing system such as scale.Operation principle is：S type flexible members（Sensitive beam）10 in outer masterpiece
With lower generation elastic deformation, make the resistance strain gage for being pasted onto its surface（Conversion element）20 also in company with being deformed, and resistance should
Become after the deformation of piece 20, its resistance will change（Increase reduces）, then through corresponding measuring circuit this resistance variations
Be converted to electric signal（Voltage or electric current）, so as to complete the process that external force is transformed to electric signal.
But, existing S types pressure pulling force sensor, when pulling force or pressure it is excessive and more than measuring limit, such as actually
When pulling force or pressure are 1.5~2.0 times of measuring limit, S type flexible members（Sensitive beam）10 deformation also can be beyond elastic pole
, there is irreclaimable situation, so as to lose the function of script, in other words, existing S types pressure pulling force sensor does not have in limit
There is the characteristic of self-protection.In view of this, the present inventor is improved to existing S types pressure pulling force sensor, and thus this case produces
It is raw.
Utility model content
The purpose of this utility model is to provide a kind of self-closing self-shield pressure pulling force sensor, is allowed in pulling force or pressure
Enter when power is excessive from closed state, form self-protection, it is to avoid loss of function.
In order to reach above-mentioned purpose, solution of the present utility model is：
A kind of self-closing self-shield pressure pulling force sensor, including flexible member and resistance strain gage, resistance strain gage glue
Be attached to the centre of flexible member, the transmission line being connected with resistance strain gage stretches out from flexible member, the top of flexible member and
Be respectively formed beneath translot, and above and below translot Z-type groove, one end connection of Z-type groove are formed on the left side and the right respectively
Corresponding translot, the other end of Z-type groove connects the left and right edges of flexible member, Z-type groove when sensor measurement power exceedes preset value
Top groove, at least one groove of following groove and middle hypotenuse groove closes automatically.
Between the Z-type groove translot above and lower section, i.e. the Z-type groove of the top translot connection of flexible member is located at
The lower section of top translot, the Z-type groove of the lower section translot connection of flexible member is located at the top of lower section translot.
The lower section of translot above and below the Z-type groove translot above.
Angle between the middle hypotenuse groove and top groove and following groove of the Z-type groove is 45 °.
The top groove of the Z-type groove and the groove width of following groove are 1.414 times of the groove width of middle hypotenuse groove.
After such scheme, the utility model is because the translot above and below flexible member is respectively on the left side and the right
Z-type groove, and one end connection translot of Z-type groove are formed, the other end of Z-type groove connects the left and right edges of flexible member, so, this reality
Can still retain the function of existing S types pressure pulling force sensor with new, meanwhile, can by Z-type groove special construction, work as survey
Measure pulling force or pressure is excessive, i.e., when more than preset value（Such as preset value is weighing sensor maximum range, or weighing sensor
The specific factor of maximum range）, at least one groove of the top groove of Z-type groove, following groove and middle hypotenuse groove closes automatically, makes bullet
Property element enter from closed state, so as to effectively prevent that flexible member from occurring excessive deformation, is consequently formed self-protection, it is to avoid lose
Sense the function of pulling force and pressure.
Brief description of the drawings
Fig. 1 is the structural representation of existing S types pressure pulling force sensor；
Fig. 2 is schematic perspective view of the present utility model；
Fig. 3 is front schematic view of the present utility model；
Fig. 4 is Fig. 3 partial enlarged drawing.
Label declaration
S types flexible member 10, resistance strain gage 20；
Flexible member 1, translot 11, translot 12, Z-type groove 13, top groove 13a, following groove 13b, middle hypotenuse groove 13c, Z-type
Groove 14, top groove 14a, following groove 14b, middle hypotenuse groove 14c；
Resistance strain gage 2, transmission line 21.
Embodiment
As shown in Figure 2 and Figure 4, a kind of self-closing self-shield pressure pulling force sensor that the utility model is disclosed, including bullet
Property element 1 and resistance strain gage 2.
Resistance strain gage 2 is pasted onto the centre of flexible member 1.The transmission line 21 being connected with resistance strain gage 2 is first from elasticity
Stretching in the middle of part 1.
Translot 11 and 12 is formed above and below flexible member 1 respectively, and the translot 11 of top forms Z-type groove on the right
13, one end of Z-type groove 13（Top groove 13a）Connect translot 11, the other end of Z-type groove 13（Following groove 13b）Connect flexible member 1
Right hand edge, and the translot 12 of lower section forms Z-type groove 14, one end of Z-type groove 14 on the left side（Following groove 14b）Connect translot 12, Z
The other end of type groove 14（Top groove 14a）Connect the left hand edge of flexible member 11.
So, the utility model can retain the function of existing S types pressure pulling force sensor, meanwhile, can be by Z-type groove
13 and 14 special construction, when pulling force or pressure are excessive, i.e., when more than preset value（Such as preset value is weighing sensor maximum
Journey, or weighing sensor maximum range specific factor）, at least one groove of Z-type groove 13 and 14 closes automatically, makes elastic member
Part 1 enters from closed state, so as to effectively prevent flexible member 1 from occurring excessive deformation, is consequently formed self-protection, it is to avoid loses and passes
Feel the function of pulling force and pressure.
Wherein, preferred configuration of the present utility model is：The translot 11 above of Z-type groove 13 and 14 and the translot 12 of lower section
Between, exactly, the lower section of the translot 11 above of Z-type groove 13, Z-type groove 14 is located at the top of lower section translot 12.Or, Z
The top of the translot 11 above of type groove 13, Z-type groove 14 is located at the lower section of lower section translot 12.So, flexible member 1 can be made
Deformation is evenly.
Angle between the middle hypotenuse groove 13c and top groove 13a and following groove 13b of the utility model Z-type groove 13 is
45 °, the top groove 13a and following groove 13b of Z-type groove 13 preferably groove width D1 are the 1.414 of middle hypotenuse groove 13c groove width D2
Times, such as when the specified measured value of sensor is 2.5t, the top groove 13a and following groove 13b of Z-type groove 13 groove width D1 are
0.4000mm, middle hypotenuse groove 13c groove width D2 are 0.2828mm.Equally, the middle hypotenuse groove 14c of Z-type groove 14 and top groove
Angle between 14a and following groove 14b is 45 °, and the top groove 14a and following groove 14b of Z-type groove 14 groove width are 0.4000mm,
Middle hypotenuse groove 14c groove width is 0.2828mm.This design, can make the utility model in pulling force or excessive pressure, Z-type groove
Top groove, following groove and middle hypotenuse groove can be closed at, increase the maximum resistance to compression value of self-shield, be in prestissimo
From closed state, self-protection is formed.
Claims (5)
1. a kind of self-closing self-shield pressure pulling force sensor, it is characterised in that：Including flexible member and resistance strain gage, resistance
Strain gauge adhesion stretches out in the centre of flexible member, the transmission line being connected with resistance strain gage from flexible member, flexible member
Above and below form translot respectively, and above and below translot form Z-type groove on the left side and the right respectively, Z-type groove
One end connects corresponding translot, and the other end of Z-type groove connects the left and right edges of flexible member, and sensor measurement power exceedes preset value
When the top groove of Z-type groove, following groove and middle hypotenuse groove at least one groove close automatically.
2. a kind of self-closing self-shield pressure pulling force sensor as claimed in claim 1, it is characterised in that：The Z-type groove position
Between translot above and below, i.e. the lower section of the Z-type groove translot above of the top translot connection of flexible member, elasticity
The Z-type groove of the lower section translot connection of element is located at the top of lower section translot.
3. a kind of self-closing self-shield pressure pulling force sensor as claimed in claim 1, it is characterised in that：The Z-type groove position
The lower section of translot above and below the translot of top.
4. a kind of self-closing self-shield pressure pulling force sensor as claimed in claim 1, it is characterised in that：The Z-type groove
Angle between middle hypotenuse groove and top groove and following groove is 45 °.
5. a kind of self-closing self-shield pressure pulling force sensor as claimed in claim 1, it is characterised in that：The Z-type groove
The groove width of top groove and following groove is 1.414 times of the groove width of middle hypotenuse groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720116764.6U CN206470005U (en) | 2017-02-08 | 2017-02-08 | Self-closing self-shield pressure pulling force sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720116764.6U CN206470005U (en) | 2017-02-08 | 2017-02-08 | Self-closing self-shield pressure pulling force sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206470005U true CN206470005U (en) | 2017-09-05 |
Family
ID=59703855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720116764.6U Active CN206470005U (en) | 2017-02-08 | 2017-02-08 | Self-closing self-shield pressure pulling force sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206470005U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106679858A (en) * | 2017-02-08 | 2017-05-17 | 厦门红雏鹰科技有限公司 | Self-closing self-protective pressure and tension sensor |
| CN112179531A (en) * | 2020-08-21 | 2021-01-05 | 蚌埠恒远传感器科技有限公司 | S-shaped pull pressure sensor |
-
2017
- 2017-02-08 CN CN201720116764.6U patent/CN206470005U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106679858A (en) * | 2017-02-08 | 2017-05-17 | 厦门红雏鹰科技有限公司 | Self-closing self-protective pressure and tension sensor |
| CN112179531A (en) * | 2020-08-21 | 2021-01-05 | 蚌埠恒远传感器科技有限公司 | S-shaped pull pressure sensor |
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