CN2394195Y - Electrc digital shrinking meter - Google Patents
Electrc digital shrinking meter Download PDFInfo
- Publication number
- CN2394195Y CN2394195Y CN 99244887 CN99244887U CN2394195Y CN 2394195 Y CN2394195 Y CN 2394195Y CN 99244887 CN99244887 CN 99244887 CN 99244887 U CN99244887 U CN 99244887U CN 2394195 Y CN2394195 Y CN 2394195Y
- Authority
- CN
- China
- Prior art keywords
- digital display
- displacement
- display unit
- measuring
- stretcher
- 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
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Abstract
The utility model relates to an electric digital shrinking meter, which is composed of a connector, a tensioner, a displacement digital display unit, a dynamometric device and a steel rule. The tensioner is provided with a drive screw of a micromotor, the amount of compression of a spring can be measured automatically by a magnetic core positioned on a sliding wane and a Hall magnetic switch positioned on a sliding ring of the dynamometric device, and the dynamometric device, the tensioner and the displacement digital display unit are arranged in a cylinder-shaped sealed structure. The utility model has the advantages of good sealed and humidity resistance, compact structure, light weight, convenient operation, stable operation, small repeatability error and high measuring precision, the accuracy error is less than or equal to 0.04 mm, and the utility model is suitable for measuring the periphery of surrounding rocks in tunnel engineering and relative deformation in other geotechnical engineering.
Description
The utility model relates to a kind of improved accurate deformation measurement instrument.
At present, existing convergence gauge is roughly formed the moisture seal poor-performing by connector, stretcher, displacement digital display unit, device for measuring force, steel band tape five parts; Stretcher is manual spiral, the operation effort, and the survey line disturbance is bigger; Device for measuring force is visual spring groove, and the dynamometry error is big, can not automatic control survey; Displacement shows use mechanical dial gauge, and heaviness and reading are not directly perceived, easy human error such as misread; Therefore, press for easy to operate, the high-precision convergence gauge of development.
The purpose of this utility model provides the electronic digital display convergence gauge of a kind of electromechanical integration that can measure automatically, improves measuring accuracy and moisture resistant seal.
The technical scheme of the electronic digital display convergence gauge of the utility model: by connector, stretcher, the displacement digital display unit, device for measuring force, steel ruler five parts are formed, stretcher drives slide block by screw rod, sliding wing, spring promotion slip pipe along slip ring compression device for measuring force moves along chute, with the steel ruler tensioning, and by device for measuring force measuring spring decrement, show displacement by the displacement digital display unit, it is characterized in that: stretcher is by the micromotor drive screw, device for measuring force is by the magnetic core and the automatic measuring spring decrement of Hall magnetic switch that is positioned on the slip ring that are positioned on the sliding wing, with device for measuring force, stretcher, the displacement digital display unit all places the cylinder type hermetically-sealed construction.
Above-mentioned displacement digital display unit comprises the capacitive grid type digital display displacement meter.
Above-mentioned steel ruler is to be connected with the boring steel tape by fixed length indium steel wire.
The course of work of the present utility model: after the chi hook 2 of this instrument connector, pintle 16 hung up properly with the pre-buried ring 1 in two ends, selects suitable chi hole, insertion register pin 4 screws nose bar nut 5.Gauge tap 15 startup micromotors 14 by stretcher are just changeing, then micro motor for driving screw rod 13 rotations, move to right along slip ring 20,23 by thread belt movable slider 8, sliding wing 22,24, compression spring 11, promote slip pipe 7 and move to right along chute, with steel ruler 3 tensionings, reach constant force (length of spring compressed puts in place) after, the magnetic core 21 of device for measuring force makes 17 conductings of Hall magnetic switch, 14 stalls of control micromotor.When slip pipe moved, the moving chi 9 of digital display that the contact 6 on it promotes the displacement digital display unit moved, displacement meter 12 countings, when stopping, showing displacement, read by reading window 10, big range amount is read by the positioning rule hole, and the difference of twice measurement data is the distortion during twice measurement.Reading finishes, and by gauge tap 15 control micromotor counter-rotatings, by the screw thread transmission slide block is moved to left, and system loosens, and loosens and puts in place, by 18 conductings of another set of magnetic core 19 control Hall switch, stops automatically.
Advantage of the present utility model: this convergence gauge is by micromotor screw drives strainer, and permanent tension force is controlled automatically, realizes automatic, no disturbance measurement; Adopt Hall magnetic switch constant force automatic control system, improved measuring accuracy, reduce measuring error; Use the displacement numeral of holding the grid ranging technology and show that volume is little, and is in light weight, accuracy of reading is directly perceived, has reduced human error; Adopt cylinder type thread seal structure, moisture resistant seal is good, can work under relative humidity state of saturation and-10 ℃～40 ℃ environment.Have compact conformation, in light weight, easy to use, working stability, reproducibility error is little, the characteristics that measuring accuracy is high, trueness error≤0.04mm.Be applicable to the relative deformation of measuring country rock periphery in the Tunnel Engineering or other Geotechnical Engineering.
In addition, this convergence gauge has also improved folder chi detent mechanism and connected system has been installed, and has reduced alignment error, has improved measuring accuracy.Fixed length indium steel wire conjunction measuring had both reduced the measuring error that temperature causes, had avoided each section of indium wire type convergence gauge to need the very big inconvenience of an indium steel wire again.For satisfying the needs that heavy construction is measured, this convergence gauge has also increased remote-controlled operation, reading function.
Below in conjunction with drawings and Examples the utility model is described in detail:
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is Figure 1A-A cross-sectional view.
Fig. 3 is Figure 1B-B cross-sectional view.
This electronic digital display convergence gauge is made up of connector, stretcher, displacement digital display unit, device for measuring force, steel ruler five parts.Stretcher is driven slide block, sliding wing, is promoted slip pipe along the spring of slip ring compression device for measuring force and move along chute by screw rod, with the steel ruler tensioning, and by device for measuring force measuring spring decrement, show displacement by the displacement digital display unit, it is characterized in that: stretcher is by the micromotor drive screw, device for measuring force all places the cylinder type hermetically-sealed construction by the magnetic core and the automatic measuring spring decrement of Hall magnetic switch that is positioned on the slip ring that are positioned on the sliding wing with device for measuring force, stretcher, displacement digital display unit.
Connector is by chi hook 2, pintle 16, the pre-buried ring 1 in two ends, register pin 4, and nose bar nut 5 is formed.
Stretcher is made up of gauge tap 15, micromotor 14, screw rod 13, slide block 8, sliding wing 22,24, slip ring 20,23, spring 11, slip pipe 7.
Device for measuring force is made up of magnetic core 21, Hall magnetic switch 17, spring 11.
The displacement digital display unit is made up of the contact on the slip pipe 6, the moving chi 9 of digital display, displacement meter 12, reading window 10, and the capacitive grid type digital display displacement meter is counted in the displacement of displacement digital display unit.
Steel ruler is to be connected with the boring steel tape by fixed length indium steel wire.
Claims (3)
1, a kind of electronic digital display convergence gauge, by connector, stretcher, the displacement digital display unit, device for measuring force, steel ruler five parts are formed, stretcher drives slide block by screw rod, sliding wing, spring promotion slip pipe along slip ring compression device for measuring force moves along chute, with the steel ruler tensioning, and by device for measuring force measuring spring decrement, show displacement by the displacement digital display unit, it is characterized in that: stretcher is by the micromotor drive screw, device for measuring force is by the magnetic core and the automatic measuring spring decrement of Hall magnetic switch that is positioned on the slip ring that are positioned on the sliding wing, with device for measuring force, stretcher, the displacement digital display unit all places the cylinder type hermetically-sealed construction.
2, electronic digital display convergence gauge according to claim 1 is characterized in that described displacement digital display unit comprises the capacitive grid type digital display displacement meter.
3, electronic digital display convergence gauge according to claim 1 is characterized in that described steel ruler is to be connected with the boring steel tape by fixed length indium steel wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99244887 CN2394195Y (en) | 1999-09-21 | 1999-09-21 | Electrc digital shrinking meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99244887 CN2394195Y (en) | 1999-09-21 | 1999-09-21 | Electrc digital shrinking meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2394195Y true CN2394195Y (en) | 2000-08-30 |
Family
ID=34030891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99244887 Expired - Fee Related CN2394195Y (en) | 1999-09-21 | 1999-09-21 | Electrc digital shrinking meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2394195Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103162613A (en) * | 2013-03-20 | 2013-06-19 | 中铁西南科学研究院有限公司 | Personal digital assistant (PDA) tunnel convergence measuring system |
| CN103291724A (en) * | 2013-06-21 | 2013-09-11 | 山东科技大学 | Adjusting nut for roadway surrounding rock convergence and deformation monitoring and using method thereof |
| CN104251681A (en) * | 2014-09-25 | 2014-12-31 | 山东大学 | Tunnel upward slope soil slippage and cracking monitoring instrument and method thereof |
| CN108729950A (en) * | 2018-04-24 | 2018-11-02 | 中铁十六局集团第二工程有限公司 | It is a kind of to directly display the convergent device of tunnel surrounding |
-
1999
- 1999-09-21 CN CN 99244887 patent/CN2394195Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103162613A (en) * | 2013-03-20 | 2013-06-19 | 中铁西南科学研究院有限公司 | Personal digital assistant (PDA) tunnel convergence measuring system |
| CN103291724A (en) * | 2013-06-21 | 2013-09-11 | 山东科技大学 | Adjusting nut for roadway surrounding rock convergence and deformation monitoring and using method thereof |
| CN104251681A (en) * | 2014-09-25 | 2014-12-31 | 山东大学 | Tunnel upward slope soil slippage and cracking monitoring instrument and method thereof |
| CN104251681B (en) * | 2014-09-25 | 2017-04-19 | 山东大学 | Tunnel upward slope soil slippage and cracking monitoring method |
| CN108729950A (en) * | 2018-04-24 | 2018-11-02 | 中铁十六局集团第二工程有限公司 | It is a kind of to directly display the convergent device of tunnel surrounding |
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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 |