CN2876742Y - Tension sensor - Google Patents
Tension sensor Download PDFInfo
- Publication number
- CN2876742Y CN2876742Y CN 200520140618 CN200520140618U CN2876742Y CN 2876742 Y CN2876742 Y CN 2876742Y CN 200520140618 CN200520140618 CN 200520140618 CN 200520140618 U CN200520140618 U CN 200520140618U CN 2876742 Y CN2876742 Y CN 2876742Y
- Authority
- CN
- China
- Prior art keywords
- plastic frame
- spring steel
- measuring
- breadboard
- wiring plug
- 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
Landscapes
- Force Measurement Appropriate To Specific Purposes (AREA)
Abstract
The utility model discloses a tension sensor, including a plastic frame, a measuring breadboard, a resistance strain gauge, and a spring steel strap. A wiring plug is connected with the top of plastic frame. The measuring breadboard is located in the plastic frame. The power supply of the measuring breadboard is connected with AC supply through the wiring plug via a transformer. The output terminal of the measuring breadboard is connected with LCD supply through the wiring plug. The input terminal of the measuring breadboard is connected with four resistance strain gauges, which are stuck to the four sides of the spring steel strap in symmetrization. The spring steel strap is located on the lug boss at the bottom of the plastic frame. The pull rod passes through the center bore of the spring steel strap to match the action of the plastic frame. It adopts detachable structure with simple processing technic. The cost is reduced by nine tenths, so it is applied to the popularization and application of low-value low-precision products. It is also applied to medical tow attachment, such as manual lumbar, vertebrae, etc. hauling equipments.
Description
Technical field
The utility model relates to a kind of pulling force sensor that is used for medical draw-gear.
Background technology
The known pulling force sensor that is used for medical draw-gear comprises integrally-built metal strain body, posts resistance strain gage at the strain position of metal strain body, and resistance strain gage is electrically connected with full-bridge circuit.Because the metal strain body is a monolithic construction, the requirement on machining accuracy height, so the processing technology complexity, the manufacturing cost height is unsuitable for applying of the low precision product of low value.
Summary of the invention
The purpose of this utility model is to provide a kind of processing technology simple, the pulling force sensor of low cost of manufacture.
The purpose of this utility model is achieved in that this sensor comprises plastic frame, the measuring circuit plate, resistance strain gage and spring steel plate, the plastic frame upper end is connected with the wiring plug seat, the measuring circuit plate is positioned at plastic frame, the power end of measuring circuit plate is electrically connected with AC power through transformer by the wiring plug seat, the output terminal of measuring circuit plate is electrically connected with LCD by the wiring plug seat, the input end of measuring circuit plate is electrically connected with four resistance strain gages, four resistance strain gage symmetries stick on spring steel plate four limits, spring steel plate is positioned on the boss of plastic frame lower end, and pull bar passes the spring steel plate center pit and cooperates with plastic frame is movable.
The utility model adopts four resistance strain gage symmetries to stick on spring steel plate four limits, spring steel plate is positioned at the split-type structural on the boss of plastic frame lower end, processing technology is simple, and manufacturing cost reduces by 9/10ths, is suitable for applying of the low precision product of low value.Can be used for medical draw-gear, as draw-off equipments such as manual lumbar vertebrae, cervical vertebras.
Description of drawings
Fig. 1 is the structural representation of an embodiment of the present utility model.
1. plastic frames among the figure, 2. spring steel plate, 3. resistance strain gage, 4. measuring circuit plate, 5. pull bar, 6. hook, 7. plastic casing, 8. wiring plug seat, 9. LCD, 10. transformer.
Embodiment
In Fig. 1, plastic frame 1 upper end is connected with wiring plug seat 8, and measuring circuit plate 4 is positioned at plastic frame 1.The power end of measuring circuit plate 4 is electrically connected with AC power through transformer 10 by wiring plug seat 8, and the output terminal of measuring circuit plate 4 is electrically connected with LCD 9 by wiring plug seat 8.The input end of measuring circuit plate 4 is electrically connected with four resistance strain gages 3, and four resistance strain gage 3 symmetries stick on square spring steel plate 2 four limits.Spring steel plate 2 is positioned on the boss of plastic frame 1 lower end, and pull bar 5 passes spring steel plate 2 center pits and 1 movable cooperation of plastic frame.Plastic frame 1 outside is covered with plastic casing 7.Pull bar 5 lower ends are connected with hook 6.
Four resistance strain gages 3 are formed full-bridge circuit, when the external force that spring steel plate 2 is subjected to linking up with on 6 is done the time spent, produce distortion, four resistance strain gage 3 resistances are changed, full-bridge circuit has small signal output, and this signal is input to LCD 9 after the two-stage electric bridge differential amplifier on the measuring circuit plate 4 amplifies.
Claims (1)
1. pulling force sensor, this sensor comprises plastic frame, the measuring circuit plate, resistance strain gage and spring steel plate, it is characterized in that the plastic frame upper end is connected with the wiring plug seat, the measuring circuit plate is positioned at plastic frame, the power end of measuring circuit plate is electrically connected with AC power through transformer by the wiring plug seat, the output terminal of measuring circuit plate is electrically connected with LCD by the wiring plug seat, the input end of measuring circuit plate is electrically connected with four resistance strain gages, four resistance strain gage symmetries stick on spring steel plate four limits, spring steel plate is positioned on the boss of plastic frame lower end, and pull bar passes the spring steel plate center pit and cooperates with plastic frame is movable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520140618 CN2876742Y (en) | 2005-12-31 | 2005-12-31 | Tension sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520140618 CN2876742Y (en) | 2005-12-31 | 2005-12-31 | Tension sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2876742Y true CN2876742Y (en) | 2007-03-07 |
Family
ID=37819979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520140618 Expired - Fee Related CN2876742Y (en) | 2005-12-31 | 2005-12-31 | Tension sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2876742Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100451740C (en) * | 2007-10-10 | 2009-01-14 | 华映视讯（吴江）有限公司 | Tension precession evaluation test method and test frame |
| CN102706491A (en) * | 2012-05-25 | 2012-10-03 | 南昌航空大学 | Miniature resistance strain-type tensile force sensor |
| CN107049578A (en) * | 2017-05-12 | 2017-08-18 | 佛山市中医院 | A kind of box-like adjustable multifunctional hand traction brace of smart group |
| CN107328498A (en) * | 2017-08-11 | 2017-11-07 | 安徽天光传感器有限公司 | A kind of link sensor of pole structure |
-
2005
- 2005-12-31 CN CN 200520140618 patent/CN2876742Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100451740C (en) * | 2007-10-10 | 2009-01-14 | 华映视讯（吴江）有限公司 | Tension precession evaluation test method and test frame |
| CN102706491A (en) * | 2012-05-25 | 2012-10-03 | 南昌航空大学 | Miniature resistance strain-type tensile force sensor |
| CN102706491B (en) * | 2012-05-25 | 2014-03-26 | 南昌航空大学 | Miniature resistance strain-type tensile force sensor |
| CN107049578A (en) * | 2017-05-12 | 2017-08-18 | 佛山市中医院 | A kind of box-like adjustable multifunctional hand traction brace of smart group |
| CN107328498A (en) * | 2017-08-11 | 2017-11-07 | 安徽天光传感器有限公司 | A kind of link sensor of pole structure |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2876742Y (en) | Tension sensor | |
| CN103438968A (en) | Double-range electronic car scale | |
| CN204202812U (en) | The caliberating device of simple and easy force cell | |
| CN201615808U (en) | Micro dynamometric device | |
| CN201159672Y (en) | Sensor unit of strain electronic balance | |
| CN201062992Y (en) | Four-pole type weighting sensor | |
| CN201348605Y (en) | Stamping die for measuring plate shaping friction coefficient | |
| CN204101155U (en) | Vehicle electronics weighs | |
| CN201379191Y (en) | Self-weighed suitcase | |
| CN2262238Y (en) | Variable measuring range force measuring sensor | |
| CN2689197Y (en) | Checker for balancer without weights | |
| CN104019872A (en) | Intelligent bluetooth infant scale | |
| CN201452303U (en) | Seat with body weight monitoring device | |
| CN203908873U (en) | Device for converting pressure sensor into tension sensor | |
| CN2591586Y (en) | Electronic scale with the function of speech reporting weight and digital displaying | |
| TW200834050A (en) | Electronic dynamometer | |
| CN2692642Y (en) | Multi-beam self-supporting type weight sensor | |
| CN103411657A (en) | Telescopic type infant health scale | |
| CN2844864Y (en) | The beam type LOAD CELLS | |
| CN2690866Y (en) | Self support type weight sensor | |
| CN2879143Y (en) | Sensor for vehicle load-limiting device | |
| CN219401933U (en) | Body weight scale panel processingequipment | |
| CN205251557U (en) | Recovered detection device of cerebral thrombus sequelae upper limbs | |
| CN204270564U (en) | A kind of rubber replaces bolt by the loading analysis instrument of axial tension distortion | |
| CN2401885Y (en) | Digital indicated electronic back drawing force meter |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |