CN2859491Y - Overload-prevention force cell sensor - Google Patents
Overload-prevention force cell sensor Download PDFInfo
- Publication number
- CN2859491Y CN2859491Y CN 200520147399 CN200520147399U CN2859491Y CN 2859491 Y CN2859491 Y CN 2859491Y CN 200520147399 CN200520147399 CN 200520147399 CN 200520147399 U CN200520147399 U CN 200520147399U CN 2859491 Y CN2859491 Y CN 2859491Y
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- force cell
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- antioverloading
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- shape
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Abstract
A antioverloading force measurement sensor, which is mainly pasted with a full bridge-type output circuit that has a plurality of electric resistance strain gages on big S type elastic element,and a tiny S type groove is opened in each side of this big S type groove to form a hook type and make of the force measurement sensor of a 3S type; The center of this force measurement sensor arranges a screw through-hole and a V type groove matched with a rod. The end of 3S type structure is able to be restricted by hook type structure after overloading under the condition of said sensor is being compressed, draw bending and twisting, so the anti-overload ability of this sensor has been improved apparently and it can be extensively used in every aspects of industry,agriculture and hospital.
Description
Technical field
The utility model relates to sensor, refer to especially a kind of on flexible member the antioverloading force cell of adhering resistance strain sheets.
Background technology
Referring to Fig. 4, existing S shape sensor 1, make flexible member become big S shape by a plurality of lines of cut 11 perpendicular to the side, big S shape groove ends A, B are opening, foliation formula foil gauge 2 on the S of symmetry shape flexible member, to measure the size of stretching and force of compression, but may occur overload in installation and use causes sensor to damage, in the specific occasion, such as industry lifting weigh, medical tractive force measures, sensor 1 can produce at A, B two places and separate or surpass certain deflection and may cause serious security incident-fracture.Though can increase overload-resistant ability if add the size of large sensor flexible member, but reduce the sensitivity of sensor, and volume becomes big.
Summary of the invention
The purpose of this utility model is: at the problems referred to above, provide a kind of and be subjected to force mode to become the middle loading mode of two end supports cantilevered eccentric when overload, to increase the antioverloading force cell of survivability.
The purpose of this utility model also is: provide a kind of simple in structure, the antioverloading force cell that cost is low, easy to operate.
A kind of antioverloading force cell of the present utility model, mainly on big S shape flexible member, be pasted with the full-bridge type output circuit that a plurality of resistance strain gages are formed, it is characterized in that: respectively increase a little S shape groove at these big S shape groove two ends in addition, form hook-type, and constitute the force cell of a 3S shape.Wherein:
Described force cell is a rectangular parallelepiped, makes flexible member become big S shape by a plurality of lines of cut perpendicular to the side, and big S shape groove two ends are for sealing.
The center of described force cell is provided with screw through-hole; The X of screw through-hole, Y match with a rod member to being respectively equipped with V-shaped groove; Described rod member is a thick steel needle or a clip.
Owing to change S shape sensor into 3S shape force cell, so when overload, cantilevered eccentric can be subjected to force mode to become the middle loading mode of two end supports, and increased survivability, and the flexible member distortion remains within the elastic range, after overload disappears, after for example installing, sensor does not damage, but recovers operate as normal.
Simple owing to this load cell structure again, adjusted convenience, cost is low, and extremely colleague's concern, and be used widely.
Description of drawings
Fig. 1 is the utility model front view.
Fig. 2 is the utility model side view.
Fig. 3 is the attached view of the utility model.
Fig. 4 is for practising the front view that sensor is arranged.
Embodiment
Shown in Fig. 1-3, a kind of antioverloading force cell 1 is a rectangular parallelepiped, makes flexible member become big S shape by a plurality of lines of cut 11 perpendicular to the side, and big S shape groove two ends are for sealing.Respectively increase a little S shape groove 12 at big S shape groove two ends in addition, form hook-type, and constitute the force cell of a 3S shape.
The center of this force cell 1 is provided with screw through-hole 13, supplies a screw to pass the size of adjusting power, and the X of screw through-hole 13, Y match with a rod member to being respectively equipped with V-shaped groove 14,15, as the cooperation of thick steel needle or the cooperation (not shown) of clip.
During use, such as: in orthopaedics therapy, can be according to actual needs, two resistance strain gages 2 are pasted on the appropriate location of force cell 1, to form full-bridge type output circuit (position as shown in FIG.), or other position, then two 3S shape force cells 1 are erected at the two ends (not shown) of a thick steel needle, and pass through the size of the screw adjusting of force cell 1 centre the thick steel needle application of force.
Because the full-bridge type output circuit by resistance strain gage 2 both can record the diastrophic coherent signal of thick steel needle, measure the deflection of thick steel needle through the resistance stress-strain gage, then can satisfy doctor's demand to thick steel needle stressed back distortion in orthopaedics therapy.
This force cell 1 is in compression like this, and when stretch bending and the various situation reversed, the end of 3S shape structure can both be limited by hook-shape structure after overload, so improved the anti-overload ability of sensor significantly.So extremely colleague's concern, and be widely used in various aspects such as industry, agricultural, hospital.
Claims (6)
1, a kind of antioverloading force cell, mainly on big S shape flexible member, be pasted with the full-bridge type output circuit that a plurality of resistance strain gages are formed, it is characterized in that: respectively increase a little S shape groove at these big S shape groove two ends in addition, form hook-type, and constitute the force cell of a 3S shape.
2, according to the described antioverloading force cell of claim 1, it is characterized in that: described force cell is a rectangular parallelepiped, makes flexible member become big S shape by a plurality of lines of cut perpendicular to the side.
3, according to the described antioverloading force cell of claim 2, it is characterized in that: described big S shape groove two ends are for sealing.
4, according to the described antioverloading force cell of claim 1, it is characterized in that: the center of described force cell is provided with screw through-hole.
5, according to the described antioverloading force cell of claim 4, it is characterized in that: the X of described screw through-hole, Y match with a rod member to being respectively equipped with V-shaped groove.
6, according to the described antioverloading force cell of claim 5, it is characterized in that: described rod member is a thick steel needle or a clip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520147399 CN2859491Y (en) | 2005-12-31 | 2005-12-31 | Overload-prevention force cell sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520147399 CN2859491Y (en) | 2005-12-31 | 2005-12-31 | Overload-prevention force cell sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2859491Y true CN2859491Y (en) | 2007-01-17 |
Family
ID=37612350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520147399 Expired - Fee Related CN2859491Y (en) | 2005-12-31 | 2005-12-31 | Overload-prevention force cell sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2859491Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102138802A (en) * | 2011-05-16 | 2011-08-03 | 上海理工大学 | Micro skeleton two-dimensional force sensor and skeleton two-dimensional force sensing device |
| CN103323098A (en) * | 2013-05-23 | 2013-09-25 | 北京航空航天大学 | Small-sized micro-vibration measurement and control system |
| 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 |
| CN109883316A (en) * | 2019-03-22 | 2019-06-14 | 中国科学院力学研究所 | A kind of resistance strain and strain measurement method |
-
2005
- 2005-12-31 CN CN 200520147399 patent/CN2859491Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102138802A (en) * | 2011-05-16 | 2011-08-03 | 上海理工大学 | Micro skeleton two-dimensional force sensor and skeleton two-dimensional force sensing device |
| CN102138802B (en) * | 2011-05-16 | 2013-10-16 | 上海理工大学 | Micro skeleton two-dimensional force sensor and skeleton two-dimensional force sensing device |
| CN103323098A (en) * | 2013-05-23 | 2013-09-25 | 北京航空航天大学 | Small-sized micro-vibration measurement and control system |
| CN103323098B (en) * | 2013-05-23 | 2015-06-17 | 北京航空航天大学 | Small-sized micro-vibration measurement and control system |
| 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 |
| CN109883316A (en) * | 2019-03-22 | 2019-06-14 | 中国科学院力学研究所 | A kind of resistance strain and strain measurement method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070117 Termination date: 20131231 |