CN208688625U - A kind of precision alterable formula pressure sensor - Google Patents
A kind of precision alterable formula pressure sensor Download PDFInfo
- Publication number
- CN208688625U CN208688625U CN201821397844.4U CN201821397844U CN208688625U CN 208688625 U CN208688625 U CN 208688625U CN 201821397844 U CN201821397844 U CN 201821397844U CN 208688625 U CN208688625 U CN 208688625U
- Authority
- CN
- China
- Prior art keywords
- plate
- bottom plate
- casing
- spring
- kelly
- 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.)
- Active
Links
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a kind of precision alterable formula pressure sensors, including bottom plate, one group of first sleeve is set on bottom plate, second casing is clamped in each first sleeve, a baffle is fixed in the middle part of each second casing, one the first spring is set between each baffle and bottom plate, in the top of bottom plate, one support plate is set, in the lower surface of support plate, one group of kelly is set, each kelly is engaged by clamping with corresponding second casing, one second spring is set between each baffle and support plate, a connecting rod is also set up in the lower surface of support plate, be cooperatively connected a slide plate in connecting rod, one slide rheostat is set on bottom plate, slide plate and slide rheostat are cooperatively connected, in the side of bottom plate, one support rod is set, be cooperatively connected display on support rod, display becomes with slide plate and sliding respectively Device is hindered to be electrically connected.The advantages of the utility model: the utility model has the advantages of simple structure, it can be achieved that measurement accuracy is high, and measuring range is big.
Description
Technical field
The utility model relates to sensor technical field more particularly to a kind of precision alterable formula pressure sensors.
Background technique
Existing pressure sensor, the usually sensor of wide range both needed sensor to have during actual measurement
Very big measurement range needs the precise measurement to small value force again, and some researchers use monolithic construction, large and small range is surveyed
Power element is incorporated on an elastomer to realize above-mentioned application purpose.
Existing pressure sensor have the disadvantages that absolute error that existing pressure sensor measures small value force compared with
Greatly, although and small-range sensor measurement accuracy is higher, can destroy when the load, the manufacture of the sensor of monolithic construction
It is at high cost.
Utility model content
Purpose of the utility model is to solve disadvantages existing in the prior art, and a kind of precision alterable formula proposed
Pressure sensor.
To achieve the goals above, the utility model adopts the technical scheme that
A kind of precision alterable formula pressure sensor, it is characterised in that: including bottom plate, one group of first set is set on bottom plate
Pipe is clamped second casing in each first sleeve, a baffle is fixed in the middle part of each second casing, in each gear
One the first spring is set between plate and bottom plate, one support plate is set in the top of bottom plate, is arranged in the lower surface of support plate
One group of kelly, each kelly are cooperatively connected with corresponding second casing, and one the is arranged between each baffle and support plate
Two springs also set up a connecting rod in the lower surface of support plate, and be cooperatively connected a slide plate in connecting rod, set on bottom plate
A slide rheostat is set, slide plate and slide rheostat are cooperatively connected, and a support rod are arranged in the side of bottom plate, in support rod
Upper mating connection display, display are electrically connected with slide plate and slide rheostat respectively.
Preferably, one the first dust excluding plate is respectively set in the surrounding of the bottom plate, is respectively arranged in the surrounding of the support plate
The outside of the first dust excluding plate is arranged in one the second dust excluding plate, the second dust excluding plate.
Preferably, one group of protective case is set in the lower surface of the support plate, each protective case is separately positioned on corresponding
The outside of the kelly.
Preferably, second casing slides in the first sleeve, and the first sleeve is in the first spring.
Preferably, the kelly slides in second casing, and the kelly is arranged in the second spring.
Utility model has the advantages that the utility model has the advantages of simple structure, manufacturing cost is low, when pressure is smaller, surveys
Accuracy of measurement is high, when pressure is larger, can not only realize large range measuring, while can also protect to the component of precision measure
Shield.
Detailed description of the invention
Fig. 1 is the basic structure schematic diagram of the utility model；
Fig. 2 is the portion the A enlarged drawing of Fig. 1.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
As depicted in figs. 1 and 2, a kind of precision alterable formula pressure sensor provided by the utility model, including bottom plate 1,
Four first sleeves 2 are welded on bottom plate 1, four first sleeves 2 are respectively welded on four angles of bottom plate 1, in each first set
Second casing 3 is clamped in pipe 2, second casing 3 slides in the first sleeve 2, in each second casing 3
A baffle 4 is fixed in portion, and first spring 2.1, the both ends point of the first spring 2.1 are placed between each baffle 4 and bottom plate 1
It is not welded on baffle 4 and bottom plate 1, for the first sleeve 3 in first spring 2.1, first spring 2.1 uses strength
Spend the small spring of coefficient, for measure pressure it is small when pressure value, guarantee measurement accuracy, be arranged one in the top of bottom plate 1
A support plate 5, welds four kellies 6 in the lower surface of support plate 5, welds four protective cases in the lower surface of the support plate 5
6.2, the setting of protective case 6.2, when for preventing pressure overload, second spring 6.1 is by permanent lesion, each protective case
6.2 are separately positioned on the outside of the corresponding kelly 6, and each kelly 6 is cooperatively connected with corresponding second casing 3, described
Kelly 6 slides in second casing 3, and a second spring 6.1, the second bullet are placed between each baffle 4 and support plate 5
The both ends of spring 6.1 are respectively welded on baffle and support plate 5, and the kelly 6 is placed in the second spring 6.1, and described
Two springs 6.1 using the big spring of stiffness factor, for measure pressure it is big when pressure value.
A connecting rod 7 is also welded in the lower surface of support plate 5, a slide plate 8 is welded in connecting rod 7, on bottom plate 1
One slide rheostat 9 is set, slide plate 8 and slide rheostat 9 are cooperatively connected, are slided on slide rheostat 9 by slide plate 8,
So that the resistance of slide rheostat 9 changes, and then obtain each resistance value corresponding pressure value.
A support rod 10 is welded in the side of bottom plate 1, a display 11, display are threadedly coupled on support rod 10
11 are electrically connected with slide plate 8 and slide rheostat 9 respectively, each resistance corresponding pressure value, intuitive aobvious by display 11
It shows and.
First dust excluding plate 1.1 is respectively welded in the surrounding of the bottom plate 1, the plane where the first dust excluding plate 1.1 is vertical
Plane where bottom plate 1, respectively welds second dust excluding plate 5.1,5.1 institute of the second dust excluding plate in the surrounding of the support plate 5
Plane perpendicular to the plane where support plate 5, the outside of the first dust excluding plate 1.1 is arranged in the second dust excluding plate 5.1, and first is anti-
Dirt plate 1.1 and the second dust excluding plate 5.1 cooperate, so that dust and other impurities are difficult to enter in slide rheostat 9, and then influence this
The measurement accuracy of utility model.
Working principle of the utility model is: when pressure is smaller, 6.1 fast reaction of second spring drives slide plate 8 to moving down
It is dynamic, so that resistance changes, by conversion, the smaller pressure value being subject in support plate 5 is shown on display 11, pressure is worked as
When power is larger, second spring 6.1 is sharply shunk, and protective case 6.2 makes second spring 6.1 avoid irreversible damage, simultaneously
Second spring is started to work, and slide plate 8 is driven to move down so that resistance changes, by conversion, by support plate 5 by
Larger pressure value be shown on display 11.
Claims (5)
1. a kind of precision alterable formula pressure sensor, it is characterised in that: including bottom plate (1), be arranged one group first on bottom plate (1)
Casing (2) is clamped second casing (3) in each first sleeve (2), fixes one in the middle part of each second casing (3)
First spring (2.1) is arranged in a baffle (4) between each baffle (4) and bottom plate (1), is arranged in the top of bottom plate (1)
One support plate (5), support plate (5) lower surface be arranged one group of kelly (6), each kelly (6) with corresponding second set
It manages (3) to be engaged by clamping, a second spring (6.1) is set between each baffle (4) and support plate (5), in support plate (5)
Lower surface also sets up a connecting rod (7), and be cooperatively connected a slide plate (8) on connecting rod (7), is arranged one on bottom plate (1)
A slide rheostat (9), slide plate (8) and slide rheostat (9) are cooperatively connected, and a support rod is arranged in the side of bottom plate (1)
(10), the mating connection display (11) on support rod (10), display (11) respectively with slide plate (8) and slide rheostat (9)
It is electrically connected.
2. a kind of precision alterable formula pressure sensor according to claim 1, it is characterised in that: in the bottom plate (1)
First dust excluding plate (1.1) is respectively arranged in surrounding, and second dust excluding plate (5.1) is respectively arranged in the surrounding of the support plate (5),
Second dust excluding plate (5.1) is arranged in the outside of the first dust excluding plate (1.1).
3. a kind of precision alterable formula pressure sensor according to claim 1, it is characterised in that: in the support plate (5)
Lower surface one group of protective case (6.2) is set, each protective case (6.2) is separately positioned on the outside of the corresponding kelly (6).
4. a kind of precision alterable formula pressure sensor according to claim 1, it is characterised in that: second casing (3)
The sliding in the first sleeve (2), the first sleeve (2) is in first spring (2.1).
5. a kind of precision alterable formula pressure sensor according to claim 1, it is characterised in that: the kelly (6) is in institute
Sliding in the second casing (3) is stated, kelly (6) setting is in the second spring (6.1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821397844.4U CN208688625U (en) | 2018-08-29 | 2018-08-29 | A kind of precision alterable formula pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821397844.4U CN208688625U (en) | 2018-08-29 | 2018-08-29 | A kind of precision alterable formula pressure sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208688625U true CN208688625U (en) | 2019-04-02 |
Family
ID=65887136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821397844.4U Active CN208688625U (en) | 2018-08-29 | 2018-08-29 | A kind of precision alterable formula pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208688625U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110132738A (en) * | 2019-05-20 | 2019-08-16 | 中南大学 | A kind of anchor rod drawing force checking device |
| CN112173115A (en) * | 2020-11-12 | 2021-01-05 | 重庆凯创荣智能科技有限公司 | High-altitude rescue unmanned aerial vehicle with damping device and using method |
-
2018
- 2018-08-29 CN CN201821397844.4U patent/CN208688625U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110132738A (en) * | 2019-05-20 | 2019-08-16 | 中南大学 | A kind of anchor rod drawing force checking device |
| CN112173115A (en) * | 2020-11-12 | 2021-01-05 | 重庆凯创荣智能科技有限公司 | High-altitude rescue unmanned aerial vehicle with damping device and using method |
| CN112173115B (en) * | 2020-11-12 | 2022-05-13 | 观典防务技术股份有限公司 | Use method of high-altitude rescue unmanned aerial vehicle with damping device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102252804B (en) | Multi-functional torque calibration device | |
| CN106918418B (en) | A kind of six-dimension force sensor | |
| CN208688625U (en) | A kind of precision alterable formula pressure sensor | |
| CN103506840B (en) | A kind of shaping correcting unit | |
| CN103837280B (en) | A kind of measuring method of the spaceborne slip ring contact force based on semi-girder theory and measuring system | |
| CN104838243A (en) | Electronic scale | |
| CN106017769B (en) | A kind of deformable Three-Dimensional Dynamic force snesor in parallel | |
| CN105953712A (en) | Shaft-like member loading deformation testing device and testing method | |
| CN203929494U (en) | A kind of for scleroscopic power sensor limiter mechanism | |
| CN106197810A (en) | A kind of large range high precision pressure real-time monitoring system based on conduction mechanism and monitoring method thereof | |
| CN203024853U (en) | Pressure preloading device of weighing load cell | |
| CN203785964U (en) | Digital portable press | |
| CN204286937U (en) | A kind of carton checkout equipment | |
| CN203148372U (en) | Micro resistor type displacement meter based on full-bridge electrometric method | |
| CN209706694U (en) | A kind of patch positioning device of strain gauge transducer | |
| CN102162758A (en) | Load measurement apparatus acting on pipe support | |
| CN202485839U (en) | Distortion-resistance plate-ring type attached type sensor | |
| CN211523300U (en) | Automatic control detection device for bridge static load test | |
| CN203894047U (en) | Rapid detection apparatus of spring stiffness coefficient | |
| CN104007032A (en) | Standard hardness machine with two high-precision force sensors | |
| CN103616096A (en) | Subsoiler stress testing device | |
| CN211717586U (en) | Electronic truck scale for bridge structure | |
| CN105081881A (en) | Device and method measuring high rotating speed/superhigh rotating speed three dimensional cutting force | |
| CN207408031U (en) | Cylinder protects formula force snesor stringer | |
| CN207268598U (en) | A kind of Thickness sensitivity gauge |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |