CN204666444U - A kind of testing apparatus of modulus of elasticity of concrete - Google Patents
A kind of testing apparatus of modulus of elasticity of concrete Download PDFInfo
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- CN204666444U CN204666444U CN201520334904.8U CN201520334904U CN204666444U CN 204666444 U CN204666444 U CN 204666444U CN 201520334904 U CN201520334904 U CN 201520334904U CN 204666444 U CN204666444 U CN 204666444U
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Abstract
The utility model relates to a kind of testing apparatus of modulus of elasticity of concrete, this testing apparatus includes upper ring and lower ring, holding screw, contact ring and clock gauge, vertically fixed head is provided with between the upper ring and a lower ring of parallel placement, upper ring and a lower ring is respectively equipped with four holding screws, holding screw is through pressed on ring and lower ring and front end stretches on the concrete test block in ring, be arranged at the clock gauge lower end of pressed on ring by contact ring and lower loop contacts, fixed head is provided with three, and three fixed heads are 120 degree and are evenly fixed between upper ring and a lower ring; Each holding screw is equipped with a spiral stadimeter; Described upper ring and a lower ring is equipped with bar formula level meter.Modulus of elasticity of concrete checkout equipment of the present utility model makes the axle center conllinear of the vertical center line of concrete test block and pressing machine and more steady, and two clock gauges in test process adjustment left and right more succinctly facilitate to horizontal level.
Description
Technical field
The utility model relates to testing apparatus, is related specifically to a kind of for modulus of elasticity of concrete testing tool, has specifically carried out designing improving to the deficiency of this testing tool original.
Background technology
Modulus of elasticity of concrete test index is most important to Concrete Industry, elastic modulus can be considered weighs the index that material produces elastic deformation complexity, its value is larger, make material that the stress of certain elastic deformation occur also larger, namely material stiffness is larger, that is under certain effect of stress, there is elastic deformation less.Elastic modulus as the important mechanical performance index of concrete, it reflects stress suffered by concrete and produce the relation between straining, be calculate xoncrete structure distortion, one of crack developing and the necessary parameter of temperature stress.In order to improve concrete anti-crack ability, normally improving concrete tensile strength and limit stretch value, reducing concrete elastic modulus and drawdown deformation etc., reducing concrete elastic modulus and will contribute to improving concrete cracking resistance.
In the prior art, for the detection of modulus of elasticity of concrete, what usually adopt is modulus of elasticity of concrete testing apparatus.In the modulus of elasticity of concrete testing apparatus of prior art, elastic modulus testing apparatus structurally mainly includes pressed on ring, lower ring, holding screw, contact ring and clock gauge, described upper ring and a lower ring is circular rings, the parallel placement of described upper ring and a lower ring, vertically fixed head is provided with between upper ring and a lower ring, described upper ring and a lower ring is respectively equipped with four holding screws, four holding screws are 90 degree of distributions, holding screw is through pressed on ring and lower ring, the front end of holding screw stretches on the concrete test block in ring, described clock gauge is arranged in pressed on ring, and the lower end of clock gauge is by contact ring and described lower loop contacts, the testing apparatus of above-mentioned prior art finds Shortcomings part in testing process:
1. test equipment is difficult to align with pressing machine pressure-bearing axle center, causes two clock gauge readings contrary, and does not have special measure to go to guarantee that test equipment and elastic modulus test test block are alignd with pressing machine pressure-bearing axle center.
2. the levelness of upper ring surface and lower anchor ring is difficult to guarantee, neither one servicing unit detects upper ring surface and whether lower anchor ring is in horizontality, and easy like this two, the left and right clock gauge that causes synchronously with distortion, can not exceed corresponding error range.
3. regulate when detecting test block and cannot guarantee that the axle center of test block and detecting instrument is on same vertical curve, the more difficult like this dead in line guaranteeing whole device and test test block and pressing machine.
Summary of the invention
The purpose of this utility model is the deficiency existed in supplementary prior art modulus of elasticity of concrete measuring instrument, provide a kind of novel, improve modulus of elasticity of concrete checkout equipment.The axle center conllinear of test block when modulus of elasticity of concrete checkout equipment of the present utility model is accomplished to use, modulus of elasticity of concrete measuring instrument and pressing machine, and testing and debugging level and axis collinear convenient succinct.
In order to reach foregoing invention object, the technical scheme that the utility model provides is as follows:
A kind of testing apparatus of modulus of elasticity of concrete, this testing apparatus includes pressed on ring, lower ring, holding screw, contact ring and clock gauge, described upper ring and a lower ring is circular rings, the parallel placement of described upper ring and a lower ring, vertically fixed head is provided with between upper ring and a lower ring, described upper ring and a lower ring is respectively equipped with four holding screws, four holding screws are 90 degree of distributions, holding screw is through pressed on ring and lower ring, the front end of holding screw stretches on the concrete test block in ring, described clock gauge is arranged in pressed on ring, and the lower end of clock gauge is by contact ring and described lower loop contacts, it is characterized in that, described fixed head is provided with three, three fixed heads are 120 ° at the edge of upper ring and a lower ring and are uniformly distributed, and the distance be fixed between the upper ring and a lower ring on each fixed head is equal, each described holding screw is equipped with a spiral stadimeter, described upper ring and a lower ring is equipped with bar formula level meter, each described holding screw is equipped with a spiral stadimeter, described upper ring and a lower ring is equipped with bar formula level meter.
In the testing apparatus of modulus of elasticity of concrete of the present utility model, the upper end of described fixed head is fixed on the peripheral sidewall of pressed on ring by lock screw, and the lower end of fixed head is fixed on the peripheral sidewall of lower ring by lock screw.
In the testing apparatus of modulus of elasticity of concrete of the present utility model, be provided with two bar formula level meters at the upper surface of described pressed on ring, two bar formula level meters are 90 degree of angle vertical distribution in pressed on ring.
In the testing apparatus of modulus of elasticity of concrete of the present utility model, be provided with two bar formula level meters at the upper surface of described lower ring, two bar formula level meters are 90 degree of angle vertical distribution on lower ring.
Based on technique scheme, modulus of elasticity of concrete testing apparatus of the present utility model compared with prior art has following technological merit:
1. modulus of elasticity of concrete testing apparatus of the present utility model arranges three pieces of fixed heads, makes equipment and concrete test block be in a stable plane like this; And on the holding screw of concrete test block, increase spiral stadimeter, can make the axle center of pressing machine, concrete test block and elastic modulus testing apparatus better on same vertical curve by these designs.
2. modulus of elasticity of concrete testing apparatus of the present utility model has installed level meter, two bar formula level meters are installed respectively to respectively upper and lower anchor ring, and two bar formula level meter angles are 90 ° on anchor ring, control the levelness of upper ring and lower ring two anchor rings so better.
Accompanying drawing explanation
Fig. 1 is the side-looking structural representation of the testing apparatus of modulus of elasticity of concrete of the present utility model.
Fig. 2 is the plan structure schematic diagram of the testing apparatus of modulus of elasticity of concrete of the present utility model.
Fig. 3 is the schematic perspective view of the testing apparatus using state of modulus of elasticity of concrete of the present utility model.
Embodiment
We do modulus of elasticity of concrete testing apparatus of the present utility model with specific embodiment by reference to the accompanying drawings and further elaborate below; understand its structure composition and working method in the hope of more cheer and bright, but protection domain of the present utility model can not be limited with this.
As depicted in figs. 1 and 2, the agent structure of the utility model modulus of elasticity of concrete testing apparatus includes pressed on ring 1, lower ring 2, holding screw 4, contact ring 7 and clock gauge 6, described pressed on ring 1 and lower ring 2 are circular rings, described pressed on ring 1 and the parallel placement of lower ring 2, fixed head 5 is vertically provided with between pressed on ring 1 and lower ring 2, described pressed on ring 1 and lower ring 2 are respectively equipped with four holding screws 4, four holding screws 4 are in 90 degree of distributions, holding screw 4 is through pressed on ring 1 and lower ring 2, the front end of holding screw 4 stretches on the concrete test block 10 in ring, described clock gauge 6 is arranged in pressed on ring 1, and the lower end of clock gauge 6 is contacted with described lower ring 2 by contact ring 7.
As the innovation place of the utility model through practice, it comprises the content of three aspects: fixed head 5 is designed to three by (1), and three fixed heads 5 are evenly fixed between described pressed on ring 1 and lower ring 2 in 120 degree; (2) on each described holding screw 4, a spiral stadimeter 8 is equipped with; (3) pressed on ring 1 described in and lower ring 2 are equipped with bar formula level meter 9.
In the testing apparatus of modulus of elasticity of concrete of the present utility model, the upper end of described fixed head 5 is fixed on by lock screw 3 on the peripheral sidewall of pressed on ring 1, the lower end of fixed head 5 is fixed on by lock screw 3 on the peripheral sidewall of lower ring 2, peripheral sidewall in pressed on ring 1 and lower ring 2 is evenly provided with preformed hole, and in pressed on ring 1 and lower ring 2 preformed hole corresponding and spacing is equal.Be equipped with through hole in the upper and lower of each fixed head 5, the upper through-hole on three fixed heads 5 is equal with the distance between lower through-hole.Utilize lock screw 3 through upper through-hole and lower through-hole to be fixed on by fixed head 5 on pressed on ring 1 and lower ring 2, three fixed heads 5 are adopted evenly to be fixed respectively, can guarantee that the surface of contact of pressed on ring 1, lower ring 2 is in same plane, and can guarantee to align with pressing machine bearing plate center in test axle center so better.
In the testing apparatus of modulus of elasticity of concrete of the present utility model, each holding screw 4 is equipped with a spiral stadimeter 8, spiral stadimeter 8 is installed additional by the holding screw 4 of concrete test block, guarantee that four holding screws 4 of pressed on ring 1 and four holding screws 4 of lower ring 2 are in same numerical value like this, aim at the axle center of elastic modulus detection equipment and concrete test block 10 like this, then better could guarantee that the axle center of pressing machine, concrete test block and elastic modulus testing apparatus is on same vertical curve further.
In the testing apparatus of modulus of elasticity of concrete of the present utility model, pressed on ring 1 and lower ring 2 are equipped with the angle vertical of bar formula level meter 9, two bar formula level meters 9, in order to test levelness all around respectively.Specifically, two bar formula level meters, 9, two bar formula level meters 9 are provided with in pressed on ring 1 in 90 degree of angle vertical distribution at the upper surface of described pressed on ring 1.Two bar formula level meters, 9, two bar formula level meters 9 are provided with on lower ring 2 in 90 degree of angle vertical distribution at the upper surface of described lower ring 2.
When practical application the utility model modulus of elasticity of concrete testing apparatus, specifically propose following technical requirement:
1. first with three fixed heads 5, pressed on ring 1 and lower ring 2 are fixed, and install clock gauge 6.
2. again concrete test block 10 to be tested being put in testing apparatus, controlling concrete test block 10 by tightening holding screw 4, make modulus of elasticity of concrete testing apparatus and concrete test block 10 form as a whole.
3. by the concrete test block 10 controlled well and elastic modulus testing apparatus global transfer on pressing machine, contacted completely with pressing machine pressure-bearing surface by three fixed heads 5 and concrete test block 10 times pressure-bearing surfaces; Then by observing the bar formula level meter 9 on pressed on ring 1 and lower ring 2 upper surface, and then regulating the levelness of upper and lower anchor ring, when guaranteeing that upper and lower anchor ring is horizontal positioned, fixing three fixed heads 5 by lock screw 3, as shown in Figure 3.
4. again by regulating holding screw 4 and observing spiral stadimeter 8, the axle center of concrete test block 10 and modulus of elasticity of concrete testing apparatus is on same vertical curve, then concrete test block 10 modulus of elasticity of concrete testing apparatus is alignd with pressing machine axle center.
5. complete the test that then above operation carries out modulus of elasticity of concrete.
Certainly; the case study on implementation that more than just testing apparatus of the present utility model is concrete; except above-mentioned structural change, also have other similar structures replace, any other conversion that it will be apparent to those skilled in the art that and substitute be all belong to protection domain of the present utility model.
Claims (5)
1. the testing apparatus of a modulus of elasticity of concrete, this testing apparatus includes pressed on ring, lower ring, holding screw, contact ring and clock gauge, described upper ring and a lower ring is circular rings, the parallel placement of described upper ring and a lower ring, vertically fixed head is provided with between upper ring and a lower ring, described upper ring and a lower ring is respectively equipped with four holding screws, four holding screws are 90 ° of distributions, holding screw is through pressed on ring and lower ring, the front end of holding screw stretches on the concrete test block in ring, described clock gauge is arranged in pressed on ring, and the lower end of clock gauge is by contact ring and described lower loop contacts, it is characterized in that, described fixed head is provided with three, three fixed heads are 120 ° at the edge of upper ring and a lower ring and are uniformly distributed, and the distance be fixed between the upper ring and a lower ring on each fixed head is equal, each described holding screw is equipped with a spiral stadimeter, described upper ring and a lower ring is equipped with bar formula level meter.
2. the testing apparatus of a kind of modulus of elasticity of concrete according to claim 1, it is characterized in that, three lock holes are all reserved with at the peripheral sidewall of described upper ring and a lower ring, the through hole passed for lock screw is all left in the upper and lower of each fixed head, and on each fixed head, the distance of two through holes is equal.
3. the testing apparatus of a kind of modulus of elasticity of concrete according to claim 1 and 2, it is characterized in that, the upper end of described fixed head is fixed on the peripheral sidewall of pressed on ring by lock screw, and the lower end of fixed head is fixed on the peripheral sidewall of lower ring by lock screw.
4. the testing apparatus of a kind of modulus of elasticity of concrete according to claim 1, is characterized in that, is provided with two bar formula level meters at the upper surface of described pressed on ring, and two bar formula level meters are 90 degree of angle vertical distribution in pressed on ring.
5. the testing apparatus of a kind of modulus of elasticity of concrete according to claim 1 or 4, is characterized in that, is provided with two bar formula level meters at the upper surface of described lower ring, and two bar formula level meters are 90 degree of angle vertical distribution on lower ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520334904.8U CN204666444U (en) | 2015-05-21 | 2015-05-21 | A kind of testing apparatus of modulus of elasticity of concrete |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520334904.8U CN204666444U (en) | 2015-05-21 | 2015-05-21 | A kind of testing apparatus of modulus of elasticity of concrete |
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| CN204666444U true CN204666444U (en) | 2015-09-23 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106018076A (en) * | 2016-06-23 | 2016-10-12 | 中铁六局集团有限公司 | Device and method for measuring static compression strain of concrete |
| CN107044933A (en) * | 2017-04-07 | 2017-08-15 | 中国水利水电第五工程局有限公司 | A kind of band level modulus of elasticity of concrete determines device and method |
| CN109030177A (en) * | 2018-07-27 | 2018-12-18 | 北京博睿智科技有限公司 | A kind of concrete test block elastic modulus tester with automatic centering function |
| CN109030176A (en) * | 2017-12-18 | 2018-12-18 | 北京博睿智科技有限公司 | A kind of concrete test block elastic modulus tester free of demolition |
-
2015
- 2015-05-21 CN CN201520334904.8U patent/CN204666444U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106018076A (en) * | 2016-06-23 | 2016-10-12 | 中铁六局集团有限公司 | Device and method for measuring static compression strain of concrete |
| CN107044933A (en) * | 2017-04-07 | 2017-08-15 | 中国水利水电第五工程局有限公司 | A kind of band level modulus of elasticity of concrete determines device and method |
| CN109030176A (en) * | 2017-12-18 | 2018-12-18 | 北京博睿智科技有限公司 | A kind of concrete test block elastic modulus tester free of demolition |
| CN109030177A (en) * | 2018-07-27 | 2018-12-18 | 北京博睿智科技有限公司 | A kind of concrete test block elastic modulus tester with automatic centering function |
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Address after: 200120 Southwest District, 2123 Pudong Road, Pudong New Area, Shanghai. Patentee after: Shanghai Construction Engineering Building Materials Technology Group Co., Ltd Address before: 200086 Siping Road 848, Shanghai, Hongkou District Patentee before: SHANGHAI JIANGONG CONSTRUCTION MATERIAL Co.,Ltd. |