CN207197928U - Spring transfer pressure detection means - Google Patents
Spring transfer pressure detection means Download PDFInfo
- Publication number
- CN207197928U CN207197928U CN201720699636.9U CN201720699636U CN207197928U CN 207197928 U CN207197928 U CN 207197928U CN 201720699636 U CN201720699636 U CN 201720699636U CN 207197928 U CN207197928 U CN 207197928U
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- China
- Prior art keywords
- spring
- main body
- described device
- detection means
- pressure detection
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Abstract
It the utility model is related to a kind of spring transfer pressure detection means, it includes apparatus main body, spring force measuring machine structure and displacement detecting unit, apparatus main body inner hollow, fixed part is provided with one end of apparatus main body, in apparatus main body the other end formed with opening, spring force measuring machine structure has the contact site outside opening, and in apparatus main body, and the multiple slips leant out by opening are nested in spring load cell together, contact site is connected with the end that leans out of the most spring load cell of inner side, and contact site can abut against one by one because of the press-in to apparatus main body side and with the end that leans out of other each spring load cells, displacement detecting unit is in apparatus main body, and it is connected with the spring load cell of most inner side, to form the detection to press-in displacement of the contact site to apparatus main body side.Spring transfer pressure detection means of the present utility model can ensure the measurement accuracy to small pressure, can meet the measurement demand to big pressure again, and have good practicality.
Description
Technical field
Pressure sensor technique field is the utility model is related to, more particularly to a kind of spring transfer pressure detection means.
Background technology
At present, in large geotechnical experiment, more using triaxial apparatus measurement pressure, but when carrying out triaxial compression test, just
Beginning staged pressure is smaller, and surge pressure is larger, when causing using device for pressure measurement such as the higher triaxial apparatus of precision, although energy
It is enough accurately to measure the pressure value of starting stage, but be difficult to meet requirement of the experiment to wide range, it is impossible to obtain experiment overall process
Pressure data；And during using the larger device for pressure measurement of range, although disclosure satisfy that requirement of the experiment overall process to range,
It is difficult to meet requirement of the starting stage to pressure measurement accuracy.
Utility model content
In view of this, the utility model is directed to a kind of spring transfer pressure detection means, disclosure satisfy that to low
The required precision of pressure measxurement, and can meet the range requirement to high pressure measurement.
To reach above-mentioned purpose, what the technical solution of the utility model was realized in：
A kind of spring transfer pressure detection means, it includes：
Apparatus main body, described device body interior is hollow, fixed part is provided with one end of described device main body, relative to institute
State fixed part, in described device main body the other end formed with opening；
Spring force measuring machine structure, the spring force measuring machine structure have the contact site outside the opening, and located at described
Be nested in spring load cell together in apparatus main body and by the multiple slips that lean out of being open, the contact site with most
The spring load cell of inner side lean out end be connected, and the contact site can because of the press-in to described device body side and
Abutted against one by one with the end that leans out of other each spring load cells；
Displacement detecting unit, it is connected in described device main body, and with the spring load cell of most inner side, with
Form the detection to press-in displacement of the contact site to described device body side.
Further, the fixed part is the stud being fixed in described device main body.
Further, the spring load cell is included in described device main body and one end is slided by the opening
The probe leant out, and in described device main body and be connected to it is described probe described device main body between spring.
Further, the footpath degree coefficient of each spring is different.
Further, the spring by most inner side is outside, and the footpath degree coefficient of each spring increases successively.
Further, one end in the probe in described device main body is provided with overhanging along the radial direction of the probe,
So that each described pop one's head in can be made to be erected on the bonding jumper of the opening.
Further, the one end being connected relative to the probe with most inner side, is provided with the other end of the contact site
Groove, and the groove intersects with the extended line of the most probe of inner side.
Further, the displacement detecting unit is the position located at described device main body between the most probe of inner side
Displacement sensor.
Further, institute's displacement sensors are LVDT displacement transducers.
Relative to prior art, the utility model has the advantage that：
Spring transfer pressure detection means described in the utility model, because contact site can be with the pressure of apparatus main body side
Enter displacement be incremented by and with each spring load cell lean out end abut against one by one, therefore can contact site press-in displacement it is smaller
When, only the most spring load cell of inner side works and can ensure the measurement accuracy to initial small pressure, meanwhile, in contact site
When press-in displacement is larger, the spring load cell in interior outside is cooperated, share measurement pressure jointly, can meet again to big pressure
The measurement demand of power, so that this spring transfer pressure measurement apparatus has simultaneously, measurement accuracy is high, measuring range is big
Advantage.
Brief description of the drawings
Form a part of accompanying drawing of the present utility model to be used for providing further understanding to of the present utility model, this practicality is new
The schematic description and description of type is used to explain the utility model, does not form to improper restriction of the present utility model.
In accompanying drawing：
Fig. 1 is the structural representation of the spring transfer pressure detection means described in the utility model embodiment；
Description of reference numerals：
1- housings, 2- mounting blocks, 3- studs, 4- displacement transducers, the spring of 5- most inner sides, 6- inside lap pieces, take in 7-
Contact pin, the outer bonding jumpers of 8-, 9- is interior to pop one's head in, 10- contact heads, 101- grooves, pops one's head in 11-, is popped one's head in outside 12-.
Embodiment
It should be noted that in the case where not conflicting, the feature in embodiment and embodiment in the utility model can
To be mutually combined.
Describe the utility model in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
A kind of spring transfer pressure detection means is the utility model is related to, it mainly includes apparatus main body, spring dynamometry
Structure and displacement detecting unit.Wherein, apparatus main body inner hollow, fixed part is provided with one end of apparatus main body, relative to
Fixed part, in apparatus main body the other end formed with opening.Spring force measuring machine structure has the contact site outside opening, Yi Jishe
Spring load cell together, and contact site and most inner side are nested in the multiple slips leant out in apparatus main body and by opening
Spring load cell lean out end be connected, and contact site can because of the press-in to apparatus main body side and with other each spring dynamometry
The end that leans out of unit abuts against one by one.Displacement detecting unit then in the apparatus main body, and with the spring load cell of most inner side
It is connected, to form the detection to press-in displacement of the contact site to apparatus main body side.
This spring transfer pressure detection means, because contact site can with apparatus main body side press-in displacement be incremented by and
With each spring load cell lean out end abut against one by one, therefore can when the press-in displacement of contact site is smaller, only most inner side
Spring load cell works and can ensure the measurement accuracy to initial small pressure, meanwhile, it is larger in the press-in displacement of contact site
When, the spring load cell in interior outside is cooperated, share measurement pressure jointly, the measurement need to big pressure can be met again
Ask, so that this spring transfer pressure measurement apparatus has the advantages of measurement accuracy is high, measuring range is big simultaneously.
Based on as above design philosophy, a kind of example arrangement of the spring transfer pressure detection means of the present embodiment is as schemed
Shown in 1, the spring force measuring machine structure described in the present embodiment specifically include in, in, outer three spring load cells.Certainly, spring
Load cell also optionally can set two, four or other quantity except setting three.
Specifically, the apparatus main body in the present embodiment is the cylindrical housings 1 of inner hollow, and the top of housing 1 is sealed
Close, its bottom is less than the opening of the internal diameter of housing 1 formed with diameter, in the installation that cylinder is installed with the inwall at the top of housing 1
Block 2, on mounting blocks 2 formed with connection housing 1 inside and outside perforating.Foregoing fixed part is to be fixed in the top of housing 1
The stud 3 of the heart, contact site is then the cylindrical contact head 10 located at the bottom outside of housing 1, and contact head 10 is right against opening
Set, in addition, forming fluted 101 relative to the side of opening in contact head 10, the groove 101 corresponds to the center of housing 1
Axle is arranged.It should be noted that housing 1 and contact head 10 be except for cylinder, it is alternatively other shapes such as triangle, rectangle
Shape.
With reference to shown in Fig. 1, spring load cell is included in housing 1 and the probe leant out is slided in one end by opening, with
And in housing 1 and the spring popped one's head between mounting blocks 2 is connected to, and one end in probe in housing 1 is provided with edge
The radial direction of probe is overhanging, so that each probe is erected on the bonding jumper of opening.Specifically, the most bullet of the spring load cell of inner side
Spring and probe are coaxially arranged with housing 1, and bonding jumper of the both ends of the spring respectively with mounting blocks 2 and probe end is connected, to improve
Structural stability.Above-mentioned contact head 10 is the probe for being fixed on the most inner side relative to the side of bonding jumper, and contact head 10
On groove 101 intersect with the extended line of the probe, namely groove 101 be in most inner side probe and spring center line on.
During specific design, probe can be set to cylinder, and bonding jumper is the disk for being fixedly arranged on probe positioned at one end in housing 1,
In addition, to realize abutting one by one for contact head 10 and each probe, it is interior, in, the height of outer three probes is sequentially reduced.In addition, in
The middle part of outer probe 12 and middle probe 11 is respectively formed with the mesopore and endoporus being adapted to the external diameter of middle probe 11 and interior probe 9,
And inside lap piece 6 has the external diameter more than endoporus, and middle bonding jumper 7 has the internal diameter more than mesopore, so that middle probe 11 passes through
Middle bonding jumper 7 is erected on outer probe 12 after mesopore, and interior probe 9 is erected on through mesopore on middle probe 11, outer overlap joint
Piece 8 is then erected on the bottom of housing 1.To improve the slip ride comfort of each probe, in scribbling lubrication on the inwall of mesopore and endoporus
Oil.It is understood that probe is except for the cylinder described in this implementation, it is alternatively the other gengons knot such as cuboid
Structure, and bonding jumper is except using disk, it can also use triangle, rectangle etc..
To improve using effect, it is interior, in, the footpath degree coefficient of each spring is different in outer three spring load cells.Further
, the spring 5 by most inner side is outside, and the footpath degree coefficient of each spring increases successively, with contact head 10 be pressurized it is smaller and only by most
During the spring load cell work of inner side, the high sensitivity having by the most inner side less footpath degree coefficient of spring can ensure to measure
Precision.It should be noted that in the present embodiment, in, the footpath degree coefficients of outer three springs also can be identical, meanwhile, three springs
Footpath degree coefficient without increasing successively.
The displacement detecting unit of the present embodiment is the displacement transducer 4 located at mounting blocks 2 between the most probe of inner side, and
The test side of the displacement transducer 4 is also laid on the center line of probe, thus can make external pressure bar overhead into groove 101
When, it can be ensured that press rods are coaxially arranged with displacement transducer 4, and ensure measurement effect.The displacement transducer 4 can specifically be adopted
With LVDT displacement transducers, the transmission line of its test side passes housing 1 via the perforating on mounting blocks 2, with external number
It is connected according to collecting device.
When this spring transfer pressure detection means is specifically used, first by external pressure bar overhead to the recessed of contact head 10
In groove 101, and press rods are finely tuned, then illustrate that contact is good when the numerical value that pressure sensor is shown changes, then can carry out
The measurement of pressure value.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc., the utility model should be included in
Protection domain within.
Claims (9)
- A kind of 1. spring transfer pressure detection means, it is characterised in that including：Apparatus main body, described device body interior is hollow, fixed part is provided with one end of described device main body, relative to described solid Determine portion, in described device main body the other end formed with opening；Spring force measuring machine structure, the spring force measuring machine structure have the contact site outside the opening, and located at described device The multiple slips leant out in main body and by the opening are nested in spring load cell together, the contact site and most inner side The spring load cell lean out end be connected, and the contact site can because of the press-in to described device body side and and its The end that leans out of its each described spring load cell abuts against one by one；Displacement detecting unit, it is connected in described device main body, and with the spring load cell of most inner side, to form Detection to press-in displacement of from the contact site to described device body side.
- 2. spring transfer pressure detection means according to claim 1, it is characterised in that：The fixed part is to be fixed on Stud in described device main body.
- 3. spring transfer pressure detection means according to claim 1, it is characterised in that：The spring load cell bag Include in the described device main body and the probe leant out slided in one end by the opening, and in described device main body, simultaneously The spring being connected between the probe and described device main body.
- 4. spring transfer pressure detection means according to claim 3, it is characterised in that：The footpath degree system of each spring Number is different.
- 5. spring transfer pressure detection means according to claim 4, it is characterised in that：By the spring of most inner side Outwards, the footpath degree coefficient of each spring increases successively.
- 6. spring transfer pressure detection means according to claim 3, it is characterised in that：In the probe positioned at described One end in apparatus main body be provided with it is overhanging along the radial direction of the probe, so that each probe can be made to be erected on taking for the opening Contact pin.
- 7. spring transfer pressure detection means according to claim 3, it is characterised in that：Relative to the institute with most inner side The connected one end of probe is stated, groove, and the groove and the spy of the most inner side are provided with the other end of the contact site The extended line of head intersects.
- 8. the spring transfer pressure detection means according to any one of claim 3 to 7, it is characterised in that：The displacement Detection unit is the displacement transducer located at described device main body between the most probe of inner side.
- 9. spring transfer pressure detection means according to claim 8, it is characterised in that：Institute's displacement sensors are LVDT displacement transducers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720699636.9U CN207197928U (en) | 2017-06-15 | 2017-06-15 | Spring transfer pressure detection means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720699636.9U CN207197928U (en) | 2017-06-15 | 2017-06-15 | Spring transfer pressure detection means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207197928U true CN207197928U (en) | 2018-04-06 |
Family
ID=61785004
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720699636.9U Expired - Fee Related CN207197928U (en) | 2017-06-15 | 2017-06-15 | Spring transfer pressure detection means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207197928U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084877A (en) * | 2017-06-15 | 2017-08-22 | 中国水利水电科学研究院 | Spring transfer pressure detection means |
-
2017
- 2017-06-15 CN CN201720699636.9U patent/CN207197928U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107084877A (en) * | 2017-06-15 | 2017-08-22 | 中国水利水电科学研究院 | Spring transfer pressure detection means |
| CN107084877B (en) * | 2017-06-15 | 2024-01-30 | 中国水利水电科学研究院 | Spring type grading pressure detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| 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: 20180406 Termination date: 20210615 |