CN208607226U - Concrete free swelling rate and shrinking percentage test device - Google Patents
Concrete free swelling rate and shrinking percentage test device Download PDFInfo
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- CN208607226U CN208607226U CN201821450027.0U CN201821450027U CN208607226U CN 208607226 U CN208607226 U CN 208607226U CN 201821450027 U CN201821450027 U CN 201821450027U CN 208607226 U CN208607226 U CN 208607226U
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- measurement
- plate
- infrared
- shrinking percentage
- test device
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- 239000004567 concrete Substances 0.000 title claims abstract description 26
- 238000012360 testing method Methods 0.000 title claims abstract description 21
- 230000008961 swelling Effects 0.000 title claims abstract description 15
- 238000005259 measurement Methods 0.000 claims abstract description 50
- 239000000523 sample Substances 0.000 claims abstract description 11
- 238000013461 design Methods 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 230000033001 locomotion Effects 0.000 description 4
- 230000008602 contraction Effects 0.000 description 3
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000012615 aggregate Substances 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The utility model proposes concrete free swelling rates and shrinking percentage test device, including measurement plate, sliding rail, supporting plate, infrared ambulator, lead screw, Mobile base and motor, a measurement track is respectively arranged on the upper plate and side plate of the measurement plate, infrared ambulator includes the infrared probe of protrusion and can move in measurement track, infrared ambulator is connected on Mobile base by telescoping rod, and lead screw is disposed through in Mobile base and conveys power by motor.Face where the utility model is measured using two infrared ambulators and lower the distance between part to be measured in the raw, the expansion rate and shrinking percentage of calculation testing piece, measurement efficiency height are come by comparing the data difference of variation front and back；Infrared ambulator can be made regularly discrete point to be selected to measure using the measurement track of sinusoidal shape, by multi-group data averaged, measurement is accurate and has generality, improves measurement efficiency, and design rationally, operates also more convenient.
Description
Technical field
The utility model belongs to building engineering equipment technical field more particularly to concrete free swelling rate and shrinking percentage is surveyed
Trial assembly is set.
Background technique
Cement concrete material is a kind of composite wood as made of cementitious material, coarse-fine aggregate, water and additive mix
Material.Wherein, cementitious material slurry is in condensation hardening process due to plastic set contraction, autogenous shrinkage, chemical shrinkage, dry receipts
Contracting and temperature change will lead to contraction distortion, and certain deformation occurs so as to cause concrete.In industrial pond, construct
Expansive concrete material used in the structure positions such as object reinforcing strip, concrete filled steel tube, to the expansion character of concrete have compared with
High request.It therefore, can be to the expansion or shrinkage of the concrete sample made of concrete material of the same race in building engineering field
Deformation is accurately measured, to recognize whole expansion and shrinking percentage.
Existing measurement concrete needs test specimen, comparator, standard rod, displacement sensor with longitudinal limiter etc. one whole
Cover experimental facilities, test the preparation stage and carry out during it is all more time-consuming, and human interference on measurement accuracy influence compared with
Greatly；Furthermore it is exactly that moveable reference plate is set in measuring surface using needs when comparator and displacement sensor,
The amount of movement of displacement sensor reference plate come obtain it is corresponding shrink and expansion results, the result obtained in this way
Do not have generality, it may be possible to which maximum swelling amount or minimum of contraction amount on the same face influence the accuracy of measurement result；
Secondly as die trial used is steel, rigidity is very big, is needed during measurement using existing measuring device by part to be measured
It is placed in measuring flume, although can be used for testing concrete shrinkage deformation, the concrete of the punching block on both sides to dilatancy
Hoop effect can be generated, it is influencing to measure expansion rate as a result, bad adaptability for different pilot projects, measurement efficiency compared with
It is low.
Utility model content
The utility model is for the device of above-mentioned measurement concrete expansion rate and yield in terms of measurement efficiency and accuracy
The problems of, propose a kind of design rationally, structure is simple and convenient to operate and accuracy rate is high concrete free swelling rate and
Shrinking percentage test device.
In order to achieve the above object, the technical solution adopted in the utility model is that concrete provided by the utility model is certainly
By expansion rate and shrinking percentage test device, including the measurement plate being made of upper plate, side plate and lower plate, two are provided in the lower plate
Item symmetrical sliding rail is movably set with supporting plate on the sliding rail, a measurement track is respectively arranged on the upper plate and side plate,
An infrared ambulator is provided on each measurement track, the front end of the infrared ambulator is provided with the infrared ray of protrusion
Probe, the infrared probe are movably arranged in measurement track, and a telescoping rod is provided on the infrared ambulator,
One end of the telescoping rod is arranged on Mobile base, and the centre of the Mobile base is provided with internal thread hole, the internal thread hole
In be provided with lead screw through Mobile base, one end of the lead screw is connected on motor, and the motor is arranged on upper plate.
Preferably, the shape of the measurement track is sine curve, the sinusoidal periodicity is 1.
Preferably, on the upper plate and being provided with rectangular coordinate system on side plate.
Preferably, the tail end of the sliding rail is provided with limit boss.
Compared with prior art, it is the advantages of the utility model with good effect,
1, concrete free swelling rate provided by the utility model and shrinking percentage test device utilize two infrared distance measurings
Instrument measures the upper surface of part to be measured at a distance from upper plate and side is at a distance from side plate, by comparing the difference of front and back data
Come the expansion rate and shrinking percentage of calculation testing piece, and test specimen in the raw under not by the interference of measuring device, measurement efficiency
It is high；Infrared ambulator can be made regularly discrete point to be selected to measure using the measurement track of sinusoidal shape, by multiple groups number
According to averaged, measurement is accurate and has generality, improves measurement efficiency.The utility model is designed reasonably, structure are simple,
It is suitble to large-scale promotion.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical solution of the utility model embodiment
The attached drawing used is briefly described, it should be apparent that, the accompanying drawings in the following description is some embodiments of the utility model,
For those of ordinary skill in the art, without any creative labor, it can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the main view of embodiment the concrete free swelling rate provided and shrinking percentage test device；
Fig. 2 is the right view of embodiment the concrete free swelling rate provided and shrinking percentage test device；
Fig. 3 is the axonometric drawing of embodiment the concrete free swelling rate provided and shrinking percentage test device；
In above each figure, 1, measurement plate；1a, upper plate；1b, side plate；1c, lower plate；2, sliding rail；3, supporting plate；4, track is measured；
5, infrared ambulator；51, infrared probe；6, telescoping rod；7, Mobile base；8, lead screw；9, motor；10, rectangular coordinate system；
11, positive stop lug boss.
Specific embodiment
It is with reference to the accompanying drawing and real in order to be more clearly understood that the above objects, features, and advantages of the utility model
Example is applied to be described further the utility model.It should be noted that in the absence of conflict, embodiments herein and reality
The feature applied in example can be combined with each other.For sake of convenience, hereafter such as there are "upper", "lower", "left", "right" printed words, only indicate
It is consistent with the upper and lower, left and right direction of attached drawing itself, restriction effect is not played to structure.
Many details are explained in the following description in order to fully understand the utility model, still, this is practical
Novel to be implemented using other modes described herein are different from, therefore, the utility model is not limited to be described below
The limitation of the specific embodiment of specification.
Embodiment, as shown in Figure 1, Figure 2 and Figure 3, concrete free swelling rate provided by the utility model and shrinking percentage are surveyed
Trial assembly is set, and including the measurement plate 1 being made of upper plate 1a, side plate 1b and lower plate 1c, two symmetrical sliding rails are provided on lower plate 1c
2, supporting plate 3 is movably set on sliding rail, places part to be measured in the form of pull using supporting plate 3, so that part to be measured is surveyed entering
It is not easily susceptible to damage during amount station, and is provided with limit boss 11 in the tail end of sliding rail 2 to limit supporting plate 3, guarantee
It moves to measurement station and stops at once.
Further, in order to improve measurement efficiency, the utility model is used as measuring tool using infrared ambulator 5.Tool
Body, it is respectively arranged with a measurement track 4 on the upper plate and side plate of measurement plate 1, is provided with one on each measurement track 4
Infrared ambulator 5, the front end of infrared ambulator 5 are provided with the infrared probe 51 of protrusion, and 51 activity of infrared probe is set
It sets in measurement track 4, a telescoping rod 6 is provided on infrared ambulator 5, one end of telescoping rod 6 is arranged in movement
On seat 7, the centre of Mobile base 7 is provided with internal thread hole, and the lead screw 8 through Mobile base 7 is provided in internal thread hole, lead screw 8
One end is connected on motor 9, and motor 9 is arranged on upper plate 1a.In this case, measured using two infrared ambulators 5 to
Survey part upper surface is at a distance from upper plate 1a and side is at a distance from side plate 1b, calculated by comparing the difference of front and back data
The expansion rate and shrinking percentage of test specimen, and test specimen in the raw under not by the interference of measuring device, measurement efficiency is high.Its
In, infrared probe is flush to infrared ambulator main part compared to the prior art, and the present apparatus is convex by infrared probe 51
Setting can move convenient for guidance infrared ambulator main body along measurement track out.
Make its result that there is generality, the shape of measurement track 4 provided by the utility model to improve accuracy of measurement
For sine curve, sinusoidal periodicity is 1, allows infrared ambulator along sinusoidal motion, more important is
It can make infrared ambulator that a certain number of discrete points regularly be selected to measure, five measurements are at least selected on the same face
Point, by multi-group data averaged, measurement is accurate and has generality；Meanwhile measurement point is chosen for convenience, this is practical new
Type on upper plate 1a and is provided with rectangular coordinate system on side plate 1b, and operator is helped to choose measurement point using rectangular coordinate system,
And why selecting the sine curve in 1 period as measurement orbital curve is because sinusoidal overlay area is wide, has
Certain discrete effect, but it is regular follow, the result generality obtained is stronger.
The working principle of the present apparatus is that motor 9 starts, and lead screw 8 rotates, and Mobile base 7 does straight line fortune under the effect of lead screw 8
Dynamic, telescopic rod 6 and Mobile base 7 do synchronous linear movement, and telescopic rod 6 drives infrared detector to do sinusoidal fortune along measurement track
It is dynamic, meanwhile, the length of telescopic rod 6 itself voluntarily becomes according to the variation of the vertical height or horizontal distance of infrared ambulator
Change, stops motor when moving to measurement site selected in advance, infrared ambulator is measured result and shown, subsequent measurement
As a result it successively obtains.It should be noted that the infrared ambulator on upper plate 1a directly measured is that one times of vertical expansion is received
Contracting distance, what the infrared ambulator on side plate 1b was directly measured is 1/2 times of lateral expansion contract by distance, by corresponding
Actual expansion rate and shrinking percentage can be correctly obtained after conversion；It, can also be with furthermore infrared ambulator itself has digital display function
One controller is sent to for all measurement results are same using wireless transmission method, by controller calculate corresponding expansion rate and
Shrinking percentage.
The above descriptions are merely preferred embodiments of the present invention, is not to make other forms to the utility model
Limitation, any person skilled in the art is changed or is modified as possibly also with the technology contents of the disclosure above equivalent
The equivalent embodiment of variation is applied to other fields, but all without departing from the content of the technical scheme of the utility model, according to this reality
With novel technical spirit any simple modification, equivalent variations and remodeling to the above embodiments, it is practical new to still fall within this
The protection scope of type technical solution.
Claims (4)
1. concrete free swelling rate and shrinking percentage test device, which is characterized in that including what is be made of upper plate, side plate and lower plate
Measurement plate is provided with two symmetrical sliding rails in the lower plate, supporting plate, the upper plate and side plate is movably set on the sliding rail
On be respectively arranged with a measurement track, be provided with an infrared ambulator, the infrared distance measuring on each measurement track
The front end of instrument is provided with the infrared probe of protrusion, and the infrared probe is movably arranged in measurement track, the infrared ray
A telescoping rod is provided on rangefinder, one end of the telescoping rod is arranged on Mobile base, the centre of the Mobile base
It is provided with internal thread hole, the lead screw through Mobile base is provided in the internal thread hole, one end of the lead screw is connected to motor
On, the motor is arranged on upper plate.
2. concrete free swelling rate according to claim 1 and shrinking percentage test device, which is characterized in that the measurement
The shape of track is sine curve, and the sinusoidal periodicity is 1.
3. concrete free swelling rate according to claim 2 and shrinking percentage test device, which is characterized in that the upper plate
Rectangular coordinate system is provided on upper and side plate.
4. concrete free swelling rate according to claim 3 and shrinking percentage test device, which is characterized in that the sliding rail
Tail end be provided with limit boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821450027.0U CN208607226U (en) | 2018-09-05 | 2018-09-05 | Concrete free swelling rate and shrinking percentage test device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821450027.0U CN208607226U (en) | 2018-09-05 | 2018-09-05 | Concrete free swelling rate and shrinking percentage test device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208607226U true CN208607226U (en) | 2019-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821450027.0U Expired - Fee Related CN208607226U (en) | 2018-09-05 | 2018-09-05 | Concrete free swelling rate and shrinking percentage test device |
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| CN (1) | CN208607226U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114935163A (en) * | 2022-05-30 | 2022-08-23 | 杭州老板电器股份有限公司 | Range hood and control method thereof |
| CN120195213A (en) * | 2025-05-23 | 2025-06-24 | 上海建工集团股份有限公司 | Intelligent concrete volume shrinkage measuring device and method |
-
2018
- 2018-09-05 CN CN201821450027.0U patent/CN208607226U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114935163A (en) * | 2022-05-30 | 2022-08-23 | 杭州老板电器股份有限公司 | Range hood and control method thereof |
| CN120195213A (en) * | 2025-05-23 | 2025-06-24 | 上海建工集团股份有限公司 | Intelligent concrete volume shrinkage measuring device and method |
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| GR01 | Patent grant | ||
| 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: 20190315 |