CN202547757U - Single-point small-range solder sealing sensor - Google Patents
Single-point small-range solder sealing sensor Download PDFInfo
- Publication number
- CN202547757U CN202547757U CN2012200357123U CN201220035712U CN202547757U CN 202547757 U CN202547757 U CN 202547757U CN 2012200357123 U CN2012200357123 U CN 2012200357123U CN 201220035712 U CN201220035712 U CN 201220035712U CN 202547757 U CN202547757 U CN 202547757U
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- strain
- elastic body
- central sill
- small amount
- sensor
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Abstract
The utility model discloses a single-point small-range solder sealing sensor, which comprises an elastic body and a strain gauge which is connected with a wheatstone bridge, and is characterized in that the middle part of the elastic body is provided with a strain hole which runs through in the forward-backward direction; a strain region is formed on the inner circumferential surface of the inner wall of the strain hole; and the strain gauge is adhered to the strain region. Compared with the prior art, the single-point small-range solder sealing sensor has the advantages that the strain gauge is attached to the inner circumferential surface of the strain hole, so that the moisture-proof and damp-proof properties are greatly enhanced, and normal use of the sensor under a severe environment is facilitated, thereby expanding the application of the solder sealing sensor in small-range measurement.
Description
Technical field
The utility model relates to a kind of little range sensors.
Background technology
The sensor that present board-like Weighing system is used is a kind of a small amount of journey single-point type glue envelope sensor of routine; The conventional sensor of journey single-point type in a small amount is a kind of external labeling type parallel girder structure; Underbeam sticks responsive strainometer respectively in the employing, forms Wheatstone bridge, at the direct embedding silica gel of outside surface; To reach the effect of sealed damp-proof, so the applications of weighing in the not high electronic price computing scale of some environmental requirements, electronic counting scale, little platform balance and some processes is comparatively general.But for some environmental requirements abominable (as requiring occasion such as moistureproof damp proof antirust waterproof), the general conventional structure of journey Design of Sensor in a small amount can't install and use in this occasion, has greatly limited application of sensor, need make research and improves.
The utility model content
The utility model technical matters to be solved is that the good single-point type of a kind of sealing journey sealing sensor in a small amount is provided to the above-mentioned state of the art.
The utility model another technical matters to be solved provides a kind of single-point type that can eliminate the influence that welding stress brings journey sealing sensor in a small amount.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of single-point type is journey sealing sensor in a small amount; Comprise elastic body and the strainometer that is connected with Wheatstone bridge; It is characterized in that said elastic body middle part offers the strain bore that front and back connect; This strain bore inwall inner peripheral surface forms strain regions, and described strainometer then is pasted on this strain regions.
Described elastic body middle part has a central sill cylindraceous; This central sill hollow forms described strain bore; This central sill is connected with the elastic body inwall through the thin beam of the left and right sides; The part that said elastic body is positioned at the central sill top forms upper beam, and the part that is positioned at the central sill below forms underbeam, has last gap and following gap between this central sill and upper beam and the underbeam.Elastic body adopts three girder structures; Inside-and-outside ring approaches the groove concentric hole, adopts thin beam to connect in the concentric hole both sides, eliminates the influence of flat diaphragm welding stress to the properties of product characteristic thereby reach; Thereby realize the sealingization of journey product in a small amount; Satisfy the abominable rig-site utilization condition of environment, environmental adaptation is strong, and measuring accuracy is higher.
Further, the upper and lower that is arranged in central sill of described upper beam and underbeam symmetry, symmetry and left and right symmetrically were arranged in the strain regions about described strain was counted.
The front end face of described strain bore and rear end face all are welded with flat diaphragm, play sealing function.
Be convenient to be connected setting with weighing platform, the said elastic body left and right sides all forms the mounting hole that confession is connected with weighing platform.
Compared with prior art, the advantage of the utility model is: strainometer is affixed on the inner peripheral surface of strain bore, and moistureproof moisture resistance strengthens greatly, is beneficial to sensor and under rugged surroundings, normally uses, thereby expanded the application of sealing sensor in a small amount of journey is measured.
Description of drawings
Fig. 1 is example structure synoptic diagram (a no diaphragm).
Fig. 2 is along the cut-open view of A-A direction among Fig. 1.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As depicted in figs. 1 and 2; Single-point type in present embodiment journey sealing sensor in a small amount comprises elastic body 10 and the strainometer that is connected with Wheatstone bridge 4; The strain bore 7 that connects before and after elastic body 10 middle parts offer; These strain bore 7 inwall inner peripheral surfaces form strain regions 22, and strainometer 4 then is pasted on this strain regions 22.The front end face of strain bore 7 and rear end face all are welded with flat diaphragm 5.Elastic body 10 left and right sides all form the mounting hole 61 and mounting hole 62 that confession is connected with weighing platform.
Claims (5)
1. single-point type journey sealing sensor in a small amount; Comprise elastic body and the strainometer that is connected with Wheatstone bridge; It is characterized in that said elastic body middle part offers the strain bore that front and back connect, this strain bore inwall inner peripheral surface forms strain regions, and described strainometer then is pasted on this strain regions.
2. single-point type according to claim 1 is journey sealing sensor in a small amount; It is characterized in that described elastic body middle part has a central sill cylindraceous; This central sill hollow forms described strain bore, and this central sill is connected with the elastic body inwall through the thin beam of the left and right sides, and the part that said elastic body is positioned at the central sill top forms upper beam; The part that is positioned at the central sill below forms underbeam, has last gap and following gap between this central sill and upper beam and the underbeam.
3. single-point type according to claim 2 is journey sealing sensor in a small amount, it is characterized in that the upper and lower that is arranged in central sill of described upper beam and underbeam symmetry, and symmetry and left and right symmetrically were arranged in the strain regions about described strain was counted.
4. according to claim 1 or 2 or 3 described single-point types a small amount of journey sealing sensors, it is characterized in that the front end face of described strain bore and rear end face all are welded with flat diaphragm.
5. according to claim 1 or 2 or 3 described single-point types a small amount of journey sealing sensors, it is characterized in that the said elastic body left and right sides all forms the mounting hole that confession is connected with weighing platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200357123U CN202547757U (en) | 2012-02-06 | 2012-02-06 | Single-point small-range solder sealing sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200357123U CN202547757U (en) | 2012-02-06 | 2012-02-06 | Single-point small-range solder sealing sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202547757U true CN202547757U (en) | 2012-11-21 |
Family
ID=47168375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200357123U Expired - Fee Related CN202547757U (en) | 2012-02-06 | 2012-02-06 | Single-point small-range solder sealing sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202547757U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108709492A (en) * | 2018-08-24 | 2018-10-26 | 霍丁格包尔文(苏州)电子测量技术有限公司 | A kind of hermetically sealed strain gauge transducer |
| EP3155389B1 (en) | 2014-06-11 | 2019-05-08 | EILERSEN, Nils Aage Juul | Load cell having an elastic body |
-
2012
- 2012-02-06 CN CN2012200357123U patent/CN202547757U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3155389B1 (en) | 2014-06-11 | 2019-05-08 | EILERSEN, Nils Aage Juul | Load cell having an elastic body |
| CN108709492A (en) * | 2018-08-24 | 2018-10-26 | 霍丁格包尔文(苏州)电子测量技术有限公司 | A kind of hermetically sealed strain gauge transducer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20121121 Termination date: 20200206 |