CN202974227U - Multichannel full-automatic concrete contraction dilatometer - Google Patents
Multichannel full-automatic concrete contraction dilatometer Download PDFInfo
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- CN202974227U CN202974227U CN 201220557247 CN201220557247U CN202974227U CN 202974227 U CN202974227 U CN 202974227U CN 201220557247 CN201220557247 CN 201220557247 CN 201220557247 U CN201220557247 U CN 201220557247U CN 202974227 U CN202974227 U CN 202974227U
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- automatic concrete
- displacement transducer
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Abstract
The utility model discloses a multichannel full-automatic concrete contraction dilatometer, which comprises a host, a displacement sensor, a humiture sensor and a measuring device. The multichannel full-automatic concrete contraction dilatometer is characterized in that the measuring device is composed of a base plate, slide bars and locking devices. The displacement sensor is fixed on the measuring device through the locking devices. The other end of the displacement sensor is connected with the host. The humiture sensor is connected with the host. A storage module, a processor and an uninterrupted power source are arranged inside the host. A display screen, a switch button, a testing button, a terminating button, displacement sensor interfaces, a humiture sensor interface, a power supply interface, a data exporting interface and a network interface are arranged outside the host. Data in a testing process can be displayed and automatically recorded and stored in a real-time manner. Testing data which are highly accurate are convenient to store and export.
Description
Technical field
The utility model relates to a kind of automatic test apparatus that detects the concrete shrinkage expanded size.
Background technology
When maturing is on active service in nonsaturated air, can shrink because of the planar water that loses in inner pore and gel pore, be called dry the contraction.Concrete also can with airborne CO
2Chemical reaction: C occurs
a(OH)
2+ CO
2=C
aCO
3+ H
2O causes concrete shrinkage, is called Carbonization contract.Dry contraction and Carbonization contract are two principal elements of concrete shrinkage.Contraction can make the concrete internal stress heavily distribute, and causes stress to concentrate.Can cause concrete cracking when local stress is excessive, affects concrete service life.The above-mentioned amount of contraction of concrete of different proportionings varies in size, and in order to reduce the risk of structure shrinkage cracking, should preferably shrink the concrete mix little, that cracking risk is low.At present, the standard test method that domestic measurement maturing shrinks size is Chinese transportation ministerial standard JTJ270-98, China's Electric Power Industry standard DL/T5150-2001 and CNS GB/T50082-2009, the equipment that adopts is horizontal convergent-divergent instrument, this instrument is unfixing, is comprised of base, par, dial gauge.In use, same convergent-divergent instrument can be measured a plurality of test specimens: first par is put well before measuring, dial gauge is fixed on base, record the dial gauge initial value, then taking off par puts into test specimen again and measures, record the dial gauge final value, test specimen length is (par length+dial gauge final value-dial gauge initial value).Measure complete after, take out test block and put into test specimen to be measured.In the whole test period, same test specimen will be measured tens times.The result of operation is like this: 1, operating personnel's labour intensity and workload are all very large; 2, due to same test specimen multi-pass operations etc., the error that causes due to different operating personnel or same operator's different operating state also larger.
The utility model content
The utility model is in order to solve the deficiencies in the prior art, and the concrete shrinkage dilatometer of a kind of high precision, hyperchannel, full-automatic, band storage and network savvy is provided.
The technical scheme that its technical matters that solves the utility model adopts is:
A kind of hyperchannel full-automatic concrete convergent-divergent instrument comprises main frame, displacement transducer, Temperature Humidity Sensor and measurement mechanism, it is characterized in that, during measurement, described displacement transducer is fixed on measurement mechanism by locking device, and the other end is connected with main frame; Described Temperature Humidity Sensor is connected with main frame.
Described measurement mechanism is comprised of base plate, slide bar and locking device.
Be provided with memory module, processor and uninterrupted power source in described main frame.
Described main frame is provided with display screen, shift knob, testing button, conclusion button, displacement transducer interface, Temperature Humidity Sensor interface, power interface, data export interface and network interface outward.
Compared with prior art, the beneficial effects of the utility model show as:
1, save manpower, easy to operate: the utility model is in test process, and test specimen is put on measurement mechanism, need not move, and measurement data all deposits in main frame automatically, need not manual record.
2, result is accurate, and precision is high: the mistake of having avoided artificial calibration and record to cause; Adopt simultaneously high accuracy displacement sensor to replace dial gauge, promoted the instrument test precision.
3, test figure is concentrated, and it is convenient to derive: the whole centralized stores of test figure are in main frame, and the peripheral data export interface facilitates data to derive and processes.
Description of drawings
Fig. 1 is the utility model hyperchannel full-automatic concrete convergent-divergent instrument test pattern;
Fig. 2 is the utility model main frame external structure;
Fig. 3 is the utility model measurement mechanism figure;
In figure: 1-main frame, 1.1-display screen, 1.2-displacement transducer interface, 1.3-the Temperature Humidity Sensor interface, 1.4-network interface, 1.5-data export interface, 1.6-power interface, 1.7-shift knob, 1.8-testing button, 1.9-conclusion button, 2-displacement transducer, 3-Temperature Humidity Sensor, the 4-measurement mechanism, 4.1-locking device, 4.2 slide bars, 4.3-base plate, the 5-concrete sample.
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, the utility model embodiment is described in further detail.
Referring to Fig. 1, a kind of hyperchannel full-automatic concrete convergent-divergent instrument comprises main frame 1, displacement transducer 2, Temperature Humidity Sensor 3 and measurement mechanism 4.As seen from Figure 3, described measurement mechanism 4 is comprised of locking device 4.1, slide bar 4.2 and base plate 4.3.Described displacement transducer 2 can be fixed on measurement mechanism 4 by locking device 4.1, and in horizontal contraction measuring process, a measurement mechanism need be installed two displacement transducers.Referring to Fig. 2, described main frame 1 peripheral hardware display screen 1.1, displacement transducer interface 1.2, Temperature Humidity Sensor interface 1.3, network interface 1.4, data export interface 1.5, power interface 1.6, shift knob 1.7, testing button 1.8 and conclusion button 1.9.Described displacement transducer 2 is connected with main frame 1 by displacement transducer interface 1.2.
Below we introduce use step of the present utility model.
1) prepare concrete sample 5 according to the contact shrinkage test method of GB/T50082-2009 " Standard for test methods of longterm performance and durability of ordinary concrete standard ".
2) concrete sample 5 is placed horizontally on the slide bar 4.2 of measurement mechanism 4, the length direction of concrete sample 5 is parallel with slide bar.Displacement transducer 2 is inserted locking device 4.1, and the position of regulating concrete sample 5 aligns the test lead of its tested position and displacement transducer 2.
3) displacement transducer 2 is connected with main frame 1 with Temperature Humidity Sensor 3.Connect the power supply of main frame 1, open shift knob 1.7, display screen 1.1 shows the measured values of displacement transducers 2 and Temperature Humidity Sensor 3 in real time at this moment.Regulate the relative position of displacement transducer 2 and concrete sample 5, make whole test process displacement transducer 2 ranges maximum, then the fixing and locking device 4.1.This operation guarantees that the non-test lead part of whole process of the test displacement transducer 2 is relative with measurement mechanism 4 static, concrete sample 5 axial shrinkage or expansion drive two ends displacement transducer 2 test leads and elongate or shorten, and the contraction or expansion size is measured recording like this.
4) according to step 2) and 3) other concrete samples to be measured of continuation adjusting.After all concrete samples all regulate, open main frame 1 testing button 1.8, all displacements and humiture data show in real time that all also autostore is in main frame 1.
5) after off-test, open conclusion button 1.9, all displacement transducers and Temperature Humidity Sensor work on, but test result is not stored.Unscrew locking device 4.1, extract displacement transducer 2, measure successively datum length and the record of each concrete sample 5, be used for the late time data calculation process.Test findings derives by the data export interface 1.5 of main frame 1.
Main frame 1 can be connected extraneous power supply by power interface 1.6, also can use inner uninterrupted power source to carry out work.This kind design warranty test is not because cut off the power supply unsuccessfully midway.
Main frame 1 can pass through network interface 1.4 access to LAN.
Slide bar 4.2 can guarantee that concrete water keeps flat surely, reduces friction simultaneously on the impact of concrete sample 5 contraction or expansions.
The utility model hyperchannel full-automatic concrete convergent-divergent instrument, displacement and temperature and humidity measurement result all show and record storage automatically in real time, reduce labour intensity and the Operating Complexity of testing crew, reduced the risk that manual record is made mistakes, promoted measuring accuracy and the accuracy of instrument.Test figure is concentrated, and can derive by the data export interface, has facilitated transfer and the processing of test figure.Establish uninterrupted power source in main frame, guaranteed the continuity of process of the test.The increase of network interface makes the shrinkage test instrument can be connected into LAN (Local Area Network).
The above is only preferred embodiment of the present utility model, and is in order to limit the utility model, not all within spirit of the present utility model and principle, any modification of doing, is equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (3)
1. a hyperchannel full-automatic concrete convergent-divergent instrument, comprise main frame, displacement transducer, Temperature Humidity Sensor and measurement mechanism, it is characterized in that, during measurement, described displacement transducer is fixed on measurement mechanism by locking device, and the other end is connected with main frame; Described Temperature Humidity Sensor is connected with main frame.
2. hyperchannel full-automatic concrete convergent-divergent instrument according to claim 1, is characterized in that, described measurement mechanism is comprised of base plate, slide bar and locking device.
3. hyperchannel full-automatic concrete convergent-divergent instrument according to claim 1, it is characterized in that, establish memory module, processor and uninterrupted power source in described main frame, main frame is provided with display screen, shift knob, testing button, conclusion button, displacement transducer interface, Temperature Humidity Sensor interface, power interface, data export interface and network interface outward.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220557247 CN202974227U (en) | 2012-10-29 | 2012-10-29 | Multichannel full-automatic concrete contraction dilatometer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220557247 CN202974227U (en) | 2012-10-29 | 2012-10-29 | Multichannel full-automatic concrete contraction dilatometer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202974227U true CN202974227U (en) | 2013-06-05 |
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ID=48515288
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220557247 Expired - Fee Related CN202974227U (en) | 2012-10-29 | 2012-10-29 | Multichannel full-automatic concrete contraction dilatometer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994707A (en) * | 2014-05-09 | 2014-08-20 | 青岛德固特节能装备股份有限公司 | Method for measuring relative thermal expansion elongation amount of air preheater heat exchange tube |
| CN108318406A (en) * | 2018-05-11 | 2018-07-24 | 南京工程学院 | A kind of pervious concrete section pore character detection device and its application method |
| CN108534739A (en) * | 2017-03-04 | 2018-09-14 | 兰州交通大学 | A kind of concrete shrinkage full-automatic wireless acquisition system |
-
2012
- 2012-10-29 CN CN 201220557247 patent/CN202974227U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103994707A (en) * | 2014-05-09 | 2014-08-20 | 青岛德固特节能装备股份有限公司 | Method for measuring relative thermal expansion elongation amount of air preheater heat exchange tube |
| CN108534739A (en) * | 2017-03-04 | 2018-09-14 | 兰州交通大学 | A kind of concrete shrinkage full-automatic wireless acquisition system |
| CN108318406A (en) * | 2018-05-11 | 2018-07-24 | 南京工程学院 | A kind of pervious concrete section pore character detection device and its application method |
| CN108318406B (en) * | 2018-05-11 | 2023-10-20 | 南京交通职业技术学院 | Permeable concrete tangent plane pore feature detection device and application method thereof |
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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 |
Granted publication date: 20130605 Termination date: 20151029 |
|
| EXPY | Termination of patent right or utility model |