CN208366319U - A kind of novel tunnel convergence monitoring auxiliary device - Google Patents
A kind of novel tunnel convergence monitoring auxiliary device Download PDFInfo
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- CN208366319U CN208366319U CN201820940881.9U CN201820940881U CN208366319U CN 208366319 U CN208366319 U CN 208366319U CN 201820940881 U CN201820940881 U CN 201820940881U CN 208366319 U CN208366319 U CN 208366319U
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- ruler
- tension sensor
- left end
- display screen
- auxiliary device
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Abstract
The utility model belongs to convergence measurement technical field, disclose a kind of novel tunnel convergence monitoring auxiliary device, Minitype tension sensor left end is welded with spring, shell left end has been connected through a screw thread adjusting nut, ruler frame has been connected through a screw thread on the inside of adjusting nut left end, there is steel ruler with holes by axis connection among ruler frame, hook, spring left end and hook right end welding are provided on the inside of ruler frame；Minitype tension sensor right end is connected with display screen by data line, and display screen, which is inlayed, to be mounted on the upside of shell, and display screen right side opening is equipped with tension values display window.The utility model is provided with Minitype tension sensor, tested non electrical quantity can be converted into electricity output, by the way that high-precision digital-display tension sensor is built in inside traditional digital readout convergence meter, it is connected with the spring of convergence gauge and accurately to measure steel ruler stretching force, the stretching force size quantization degree of steel ruler can be observed in real time, to reduce error caused by tensioning when measuring, convergence gauge accuracy of measurement is improved.
Description
Technical field
The utility model belongs to convergence measurement technical field more particularly to a kind of novel tunnel convergence monitoring auxiliary device.
Background technique
Currently, the prior art commonly used in the trade is such that
Current digital display steel tape convergence gauge is mainly that contact measures, by connector, dynamometer spring, range unit etc.
Three parts composition.Grab need to be buried in tunnel wall surface when measurement, convergence gauge be hung on grab, when convergence gauge hangs on two surveys
Between point when precession micrometer, steel ruler tension increases, until the graticule on steel ruler (is thought when being overlapped with convergence gauge end graticule
Steel ruler tension is consistent when measuring every time), that is, the distance being read out between measuring point.
In conclusion problem of the existing technology is:
When existing digital display steel tape convergence gauge carries out convergence measurement, the requirement to " consistency of tension " is in fact
Mark to realize by simple end steel ruler position (i.e. in convergence gauge end, fixed bit installs graticule, when measurement, works as steel
When markings on ruler are overlapped with end graticule, that is, think that tension is consistent)；Each measurement is not measured from the angle of power
The tension compliance of steel ruler, the accuracy of measurement data just greatly reduces in this！Although nominal accuracy is not less than 0.1mm,
The influence factor of practical testing precision is more, there is very big uncertainty.Along with convergence gauge hook and the contact of hole wall grab
Uncertain tension etc. caused by the stress relaxation of position and dynamometer spring can produce bigger effect its measurement accuracy.
In view of this, it is quasi- to have invented a kind of energy from the angle of power based on " tension compliance " requirement for utility model device
Really measure the auxiliary device of the stretching force, the stretching force size of steel ruler quantitatively determined with this, with solve current measurement data by
The multifactor interference in scene and the impacted problem of precision, achieve the purpose that real precise measurement tunnel perimeter deflection.
Utility model content
In view of the problems of the existing technology, the utility model provides a kind of novel tunnel convergence monitoring auxiliary device.
The utility model is realized in this way a kind of novel tunnel convergence monitoring auxiliary device is provided with miniature spring sensing
Device；
Minitype tension sensor is socketed inside the housing, and Minitype tension sensor left end is welded with spring, and shell left end is logical
It crosses and is threaded with adjusting nut, ruler frame has been connected through a screw thread on the inside of adjusting nut left end, has been had among ruler frame by axis connection
Steel ruler with holes, ruler frame inside are provided with hook, spring left end and hook right end welding；
Minitype tension sensor right end is connected with display screen by data line, and display screen, which is inlayed, to be mounted on the upside of shell, shows
Display screen right side opening is equipped with tension values display window.
The utility model is provided with Minitype tension sensor, and tested non electrical quantity can be converted into electricity output, passed through
High-precision digital-display tension sensor is built in inside traditional digital readout convergence meter, is connected accurately to measure with the spring of convergence gauge
Steel ruler stretching force can observe the stretching force size quantization degree of steel ruler in real time, to reduce caused by tensioning when measuring
Error, improve convergence gauge accuracy of measurement.
Further, connection ruler frame is welded on the right side of shell, connection ruler frame right end is welded with ruler card, and ruler card right end is fixed by shaft
There is ruler hole pin, connection ruler frame right end is welded with hook.
Further, Minitype tension sensor left end is loading end, and right end is non-load end, and Minitype tension sensor width is
8mm, a height of 13mm, loading end and non-load end width are 12mm, a height of 5mm.Minitype tension sensor is internally provided with foil gauge,
It is securely attached on substrate as electric conductor.When substrate is stretched, foil gauge will be elongated.Otherwise it when being compressed, answers
Becoming piece will shorten.The result is that causing to strain sheet resistance and generate to change.Here it is strain measurement principles, are generated by strain resistor
Transformation is to determine strain size.In order to produce force snesor, also need an elastomer-for example, by using stainless other than foil gauge
Steel etc..Foil gauge will be pasted on elastomer securely.Most importantly, due to foil gauge is pasted on elastomer securely,
Therefore foil gauge will generate the deformation as elastomer, this will lead to resistance and generates variation.Wheatstone bridge output signal will
These deformation informations are provided.The size for acting on the power on foil gauge can thus be calculated.Here it is the works of force snesor
Make principle.
Further, display screen and tension digital display window upper end are connected with plastic lid.
The utility model can play a protective role to display screen and tension window by plastic lid, prevent damage of colliding with.
Detailed description of the invention
Fig. 1 is novel tunnel convergence monitoring assistant apparatus structure schematic diagram provided by the embodiment of the utility model；
Fig. 2 is novel tunnel convergence monitoring auxiliary device schematic diagram of internal structure provided by the embodiment of the utility model；
Fig. 3 is Minitype tension sensor structural schematic diagram provided by the embodiment of the utility model；
Fig. 4 is Minitype tension sensor electric bridge connection schematic diagram provided by the embodiment of the utility model；
In figure: 1, linking up with；2, ruler frame；3, adjusting nut；4, shell；5, plastic lid；6, display screen；7, tension digital display window
Mouthful；8, join ruler frame；9, ruler card；10, ruler hole pin；11, steel ruler with holes；12, spring；13, Minitype tension sensor；14, data line.
Specific embodiment
For the invention, features and effects that can further appreciate that the utility model, the following examples are hereby given, and cooperates
Detailed description are as follows for attached drawing.
As Figure 1-Figure 4, novel tunnel convergence monitoring auxiliary device provided by the embodiment of the utility model includes: hook
1, ruler frame 2, adjusting nut 3, shell 4, plastic lid 5, display screen 6, tension window 7, connection ruler frame 8, ruler card 9, ruler hole pin 10, with holes
Steel ruler 11, spring 12, Minitype tension sensor 13, data line 14.
Minitype tension sensor 13 is socketed in inside shell 4, and 13 left end of Minitype tension sensor is welded with spring 12, shell
4 left ends have been connected through a screw thread adjusting nut 3, and ruler frame 2 has been connected through a screw thread on the inside of 3 left end of adjusting nut, has been led among ruler frame 2
Crossing axis connection has steel ruler 11 with holes, and hook 1,12 left end of spring and hook 1 right end welding are provided on the inside of ruler frame 2；Miniature spring
13 right end of sensor is connected with display screen 6 by data line 14, and display screen 6, which is inlayed, is mounted on 4 upside of shell, 6 right side of display screen
Tensioned window 7 is opened up, connection ruler frame 8 is welded on the right side of shell 4, connection 8 right end of ruler frame is welded with ruler card 9, and 9 right end of ruler card is by turning
Axis is fixed with ruler hole pin 10.
As a preferred embodiment, 13 left end of Minitype tension sensor is loading end, and right end is non-load end, and miniature spring passes
13 width of sensor is 8mm, and a height of 13mm, loading end and non-load end width are 12mm, a height of 5mm.
As a preferred embodiment, display screen 6 and 7 upper end of tension window are connected with plastic lid 5.
As a preferred embodiment, 13 range of Minitype tension sensor is 0-100N, and precision controlling is in 0.1N, driving voltage control
System is in 3~5V.
The effect of Minitype tension sensor 13 is usually that tested non electrical quantity is converted into electricity output, it is mainly by sensitivity
Element, conversion element, measuring circuit and four part of accessory power supply composition.
The working principle of the utility model is:
When the utility model is used, the hook 1 at both ends is separately fixed on the inner wall of tunnel two sides, miniature spring is passed
The resistance strain gage that sensor 13 can and incude this deformation quantity after stress forms bridge circuit, and resistance strain gage can be consolidated
Surely it is pasted on elastomer and the adhesive of dependent variable can be conducted and protect the three parts such as electronic circuit sealant composition pulling force
Sensor.It after stress effect, pastes the foil gauge on elastomer and generates deformation therewith and cause resistance variations, resistance variations make
The electric bridge disequilibrium of composition exports the electric quantity signal of one with the variation of external force linear proportional, to realize by non electrical quantity to electricity
The transformation of amount.Tension digital display window 7 will make dynamometry reading more convenient intuitive, and more traditional " to red line " method operation is simpler
It is single；Connection component is the attachment device by screw connection sensor and spring.This technology can effectively eliminate human error,
Traditional digital readout convergence is set to measure accuracy of measurement more accurate reliable.
The utility model is by the way that miniature high-precision digital display tension sensor to be built in inside traditional digital readout convergence meter, with receipts
The spring for holding back meter is connected accurately to measure steel ruler stretching force, can observe of steel ruler in real time by tension digital display window 7
Pulling force size degree, to use consistent stretching force when measuring to reduce caused by manual operation and spring stress relaxation etc.
Error, improve convergence gauge accuracy of measurement.
The above is only the preferred embodiment to the utility model, is not made in any form to the utility model
Limitation, it is all according to the technical essence of the utility model any simple modification made to the above embodiment, equivalent variations with
Modification, is all within the scope of the technical scheme of the utility model.
Claims (4)
1. a kind of novel tunnel convergence monitoring auxiliary device, which is characterized in that the novel tunnel convergence monitoring auxiliary device is set
It is equipped with Minitype tension sensor；
Minitype tension sensor is socketed inside the housing, and Minitype tension sensor left end is welded with spring, and shell left end passes through spiral shell
Line is connected with adjusting nut, and ruler frame has been connected through a screw thread on the inside of adjusting nut left end, has been had among ruler frame by axis connection with holes
Steel ruler, ruler frame inside are provided with hook, spring left end and hook right end welding；
Minitype tension sensor right end is connected with display screen by data line, and display screen, which is inlayed, to be mounted on the upside of shell, display screen
Right side opening is equipped with tension window.
2. novel tunnel convergence monitoring auxiliary device as described in claim 1, which is characterized in that be welded with connection ruler on the right side of shell
Frame, connection ruler frame right end are welded with ruler card, and ruler card right end is fixed with ruler hole pin by shaft, and connection ruler frame right end is welded with hook.
3. novel tunnel convergence monitoring auxiliary device as described in claim 1, which is characterized in that Minitype tension sensor left end is
Loading end, right end are non-load end, and Minitype tension sensor width is 8mm, a height of 13mm, and loading end and non-load end width are
12mm, a height of 5mm.
4. novel tunnel convergence monitoring auxiliary device as described in claim 1, which is characterized in that display screen and tension window upper end
It is connected with plastic lid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820940881.9U CN208366319U (en) | 2018-06-19 | 2018-06-19 | A kind of novel tunnel convergence monitoring auxiliary device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820940881.9U CN208366319U (en) | 2018-06-19 | 2018-06-19 | A kind of novel tunnel convergence monitoring auxiliary device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208366319U true CN208366319U (en) | 2019-01-11 |
Family
ID=64929401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820940881.9U Active CN208366319U (en) | 2018-06-19 | 2018-06-19 | A kind of novel tunnel convergence monitoring auxiliary device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208366319U (en) |
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2018
- 2018-06-19 CN CN201820940881.9U patent/CN208366319U/en active Active
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