CN209858485U - Measuring point positioning device suitable for measuring concrete strength by ultrasonic rebound method - Google Patents
Measuring point positioning device suitable for measuring concrete strength by ultrasonic rebound method Download PDFInfo
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- CN209858485U CN209858485U CN201920405924.8U CN201920405924U CN209858485U CN 209858485 U CN209858485 U CN 209858485U CN 201920405924 U CN201920405924 U CN 201920405924U CN 209858485 U CN209858485 U CN 209858485U
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Abstract
The utility model discloses a measurement station positioner suitable for concrete intensity is surveyed to supersound resilience method, including the parallelogram locating rule, be equipped with a plurality of transducer locating holes on the locating rule, two relative summit punishments of locating rule do not are provided with a hollow angulation pivot, hollow angulation pivot has a central through hole, is provided with the angle scale along circumference at the upper surface of hollow angulation pivot, two relative summit punishments in addition of locating rule do not are provided with a hollow pivot, hollow pivot has a central through hole, and the central line, every are all carved with on each limit of locating rule the central through hole of transducer locating hole, hollow angulation pivot and the central through hole of hollow pivot all can set up a transducer. The utility model discloses can arrange the measurement station fast, accurately, can satisfy the standard requirement, improve detection efficiency.
Description
Technical Field
The utility model belongs to the technical field of the concrete strength measurement, a measurement station positioner suitable for concrete strength is surveyed to supersound resilience method particularly.
Background
In the field detection project of concrete structure engineering, the detection of the strength of cement concrete is a conventional project. The concrete bending strength measuring method is to use a resiliometer and a low-frequency ultrasonic instrument to rapidly detect the cement concrete on site according to an ultrasonic rebound comprehensive method, wherein the arrangement of measuring points must meet relevant specifications.
The ultrasonic rebound method is a non-damage method which is established on the basis of the correlation between the ultrasonic wave propagation speed and the rebound value and the concrete compressive strength and comprehensively reflects the concrete compressive strength by the sound velocity and the rebound value. Compared with a single rebound method or an ultrasonic method, the ultrasonic rebound method has the advantages of being less influenced by the age and the water content of the concrete, high in test precision, wide in application range, capable of comprehensively reflecting the actual quality of the structural concrete and the like. In the detection process of the ultrasonic rebound method, the 'measuring point arrangement' is an important link and is the most time-consuming and labor-consuming link. At present, measuring points in China are arranged by using a ruler to measure the positions, and then the positions of the measuring points are drawn by using a chalk or an oil pen.
SUMMERY OF THE UTILITY MODEL
For solving the not enough of prior art, the utility model provides a measurement station positioner suitable for concrete strength is surveyed to supersound resilience method can effectively raise the efficiency, solves the above-mentioned problem that the background art exists.
In order to realize the purpose, the utility model discloses a technical scheme as follows:
the measuring point positioning device comprises a parallelogram positioning ruler, wherein a plurality of transducer positioning holes are formed in the positioning ruler, two opposite vertexes of the positioning ruler are respectively provided with a hollow angle measuring rotating shaft, the hollow angle measuring rotating shaft is provided with a central through hole, angle scales are arranged on the upper surface of the hollow angle measuring rotating shaft along the circumferential direction, another two opposite vertexes of the positioning ruler are respectively provided with a hollow rotating shaft, the hollow rotating shaft is provided with a central through hole, a central line is carved on each side of the positioning ruler, and each transducer positioning hole, the central through hole of the hollow angle measuring rotating shaft and the central through hole of the hollow rotating shaft can be provided with one transducer.
Furthermore, the parallelogram positioning ruler comprises two long edges and two short edges, and the two long edges are respectively provided with a transducer positioning hole.
Furthermore, the short side is 400mm long, the long side is 450mm long, each side of the positioning ruler is 40mm wide, and the thickness is 5 mm.
Furthermore, the distance between the positioning hole on the long edge and one end point of the long edge is 100mm, the distance between the positioning hole on the long edge and the other end point is 350mm, the central connecting line of the positioning holes on the two long edges is parallel to the short edge of the positioning ruler, and the 6 positioning holes of the transducer are circular and have the diameter of 30 mm.
Furthermore, the extension lines of the central lines of the adjacent long sides and the short sides are intersected at the center of the hollow angle-measuring rotating shaft or the center of the hollow rotating shaft,
further, the division value of the angle of the hollow protractor rotating shaft is 1 °.
Further, the locating rule can be rotated and folded to be a long rule around the hollow rotating shaft, and the total length is 890mm after the locating rule is folded.
Compared with the prior art, the utility model, it is showing the advantage and lies in:
(1) in the process of detecting the strength of concrete by an ultrasonic rebound method, the included angle between a connecting line of a transmitting transducer and a receiving transducer and the axis of a nearby reinforcing steel bar can be measured, and the transducers are placed in positioning holes after being adjusted to the angle specified by a specification, so that measuring points can be quickly and accurately arranged, the specification requirements can be met, and the detection efficiency is improved; (2) the positioning ruler can be folded, is convenient to carry and can be prevented from being damaged; (3) the size of the positioning rule and the number and the positions of the positioning holes of the transducer are the optimal parameters selected through multiple tests, and more accurate detection data can be provided.
Drawings
Fig. 1 is a structure diagram of the measuring point positioning device for measuring concrete strength by ultrasonic rebound method.
Fig. 2 is a structural diagram of the hollow rotating shaft of the present invention.
Fig. 3 is a structural diagram of the hollow angle-measuring rotating shaft of the present invention.
Fig. 4 is a schematic view of the hollow rotating shaft of the positioning ruler of the present invention with a long short edge at an obtuse angle.
Fig. 5 is a schematic view of the hollow rotating shaft of the positioning ruler of the present invention with long short edge in right angle.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in fig. 1-3, the measuring point positioning device suitable for measuring concrete strength by an ultrasonic rebound method comprises a parallelogram positioning ruler 1, wherein a plurality of transducer positioning holes 2 are arranged on the positioning ruler 1, two opposite vertexes of the positioning ruler 1 are respectively provided with a hollow angle measuring rotating shaft 3, the hollow angle measuring rotating shaft 3 is provided with a central through hole, angle scales are arranged on the upper surface of the hollow angle measuring rotating shaft 3 along the circumferential direction, another two opposite vertexes of the positioning ruler 1 are respectively provided with a hollow rotating shaft 4, the hollow rotating shaft 4 is provided with a central through hole, a central line 5 is carved on each side of the positioning ruler, and each transducer positioning hole 2, the central through hole of the hollow angle measuring rotating shaft 3 and the central through hole of the hollow rotating shaft 4 can be provided with a transducer.
Further, referring to fig. 3, the hollow angle-measuring spindle 3 is made of stainless steel, is rotatable, and has a division value of 1 ° and 12 long scales per 30 °. The included angle between the connecting line of the transmitting transducer and the receiving transducer and the axis of the nearby steel bar can be measured through the central line of the positioning ruler 1. The positioning ruler 1 is made of plastic and is not easy to deform and rust, the long side length of the positioning ruler is 450mm, the short side length of the positioning ruler is 400mm, the width of the positioning ruler is 40mm, and the thickness of the positioning ruler is 5 mm. The transducer positioning holes 2 on the positioning ruler are all round, the diameter is 30mm, 3 groups (6) are provided, two pairs of positioning holes are arranged at the top point, one pair of positioning holes are arranged at the long edge, the distances between the long edge positioning hole and the two ends are respectively 100mm and 350mm, and the central connecting line of the two long edge positioning holes is parallel to the short edge. The positioning ruler can be adjusted in angle or folded in a rotating mode around the rotating shaft, can be folded into a long ruler, is 890mm in length, is convenient to carry and can be prevented from being damaged.
In the process of detecting the concrete strength by an ultrasonic rebound method, the long-edge vertical steel bar axis of the positioning ruler is placed, the included angle between the connecting line of the transmitting transducer and the receiving transducer and the adjacent steel bar axis can be measured by the angle measuring rotating shaft, after the included angle is adjusted to the angle specified by the specification, 1 group of transducers (1 transmitting transducer and 1 receiving transducer) are respectively placed in one group of positioning holes for measurement, the transducers are measured in the other two groups of positioning holes by the same step, the up-down relative positions of the transmitting transducer and the receiving transducer in the measurement process are kept consistent, three groups of test data are obtained, and therefore the measurement of the concrete strength by the ultrasonic rebound method is completed. And after the angle of the positioning ruler is adjusted, the measuring point positions can be traced by using chalk or an oil pen along the positioning hole wall, and the transducers are directly placed according to the traced measuring point positions for measurement, so that the measuring points can be quickly and accurately arranged, and the detection efficiency is improved.
In-process at supersound resilience method detection concrete strength, put the orientation along the interior reinforcing bar of concrete with the alignment ruler minor face and place, through the structure of alignment ruler long and short face in ordinary pivot department as shown in fig. 4-5, utilize the hindrance effect between the alignment ruler long and short face spatial position, put alignment ruler long and short limit perpendicularly, it is perpendicular with the interior reinforcing bar of concrete to realize the alignment ruler long limit, fixed alignment ruler long limit afterwards, rotatory alignment ruler minor face, scale mark (the division value is 1 degree) through comparing central line and angulation pivot department reads alignment ruler long and short face contained angle, it is rotatory to the 40 ~ 50 within range of standard regulation to revolute the axis with the alignment ruler minor face, finally realize putting of alignment ruler position. Figure 4 shows the rule with the long and short sides at an obtuse angle and figure 5 shows the rule with the long and short sides at a right angle.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A measuring point positioning device suitable for measuring concrete strength by an ultrasonic rebound method is characterized by comprising a parallelogram positioning ruler (1), the positioning ruler (1) is provided with a plurality of transducer positioning holes (2), two opposite vertexes of the positioning ruler (1) are respectively provided with a hollow angle measuring rotating shaft (3), the hollow angle measuring rotating shaft (3) is provided with a central through hole, the upper surface of the hollow angle-measuring rotating shaft (3) is provided with angle scales along the circumferential direction, the other two opposite vertexes of the positioning ruler (1) are respectively provided with a hollow rotating shaft (4), the hollow rotating shaft (4) is provided with a central through hole, a central line (5) is carved on each side of the positioning ruler, and each transducer positioning hole (2), the central through hole of the hollow angle measuring rotating shaft (3) and the central through hole of the hollow rotating shaft (4) can be provided with one transducer.
2. The measuring point positioning device suitable for measuring the concrete strength by the ultrasonic rebound method as recited in claim 1, wherein the parallelogram positioning ruler (1) comprises two long sides and two short sides, and the two long sides are respectively provided with one transducer positioning hole (2).
3. The measuring point positioning device suitable for measuring the concrete strength by the ultrasonic rebound method as recited in claim 2, wherein the short side is 400mm long, the long side is 450mm long, each side of the positioning ruler (1) is 40mm wide and 5mm thick.
4. The measuring point positioning device suitable for measuring the concrete strength by the ultrasonic rebound method as claimed in claim 3, wherein the positioning hole (2) on the long side is 100mm away from one end point of the long side and 350mm away from the other end point, the central connecting line of the positioning holes (2) on the two long sides is parallel to the short side of the positioning ruler (1), and the 6 transducer positioning holes (2) are all circular and have the diameter of 30 mm.
5. The measuring point positioning device suitable for measuring the concrete strength by the ultrasonic rebound method as recited in claim 4, wherein the extension lines of the adjacent long side central line (5) and short side central line (5) are intersected at the center of the hollow angle measuring rotating shaft (3) or the center of the hollow rotating shaft (4).
6. The measuring point positioning device for measuring the concrete strength by the ultrasonic rebound method as recited in claim 5, wherein the index value of the angle of the hollow angle measuring rotating shaft (3) is 1 °.
7. The measuring point positioning device suitable for measuring the concrete strength by the ultrasonic rebound method as recited in any one of claims 4 to 6, wherein the positioning ruler (1) can be rotationally folded around the hollow rotating shaft (4) to form a long ruler, and the total length of the positioning ruler (1) after being folded is 890 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920405924.8U CN209858485U (en) | 2019-03-28 | 2019-03-28 | Measuring point positioning device suitable for measuring concrete strength by ultrasonic rebound method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201920405924.8U CN209858485U (en) | 2019-03-28 | 2019-03-28 | Measuring point positioning device suitable for measuring concrete strength by ultrasonic rebound method |
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| CN209858485U true CN209858485U (en) | 2019-12-27 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115326616A (en) * | 2022-10-13 | 2022-11-11 | 广东环达工程检测有限公司 | Road and bridge concrete structure detection device and detection method thereof |
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2019
- 2019-03-28 CN CN201920405924.8U patent/CN209858485U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115326616A (en) * | 2022-10-13 | 2022-11-11 | 广东环达工程检测有限公司 | Road and bridge concrete structure detection device and detection method thereof |
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Address after: 210014 No. 9, Ziyun Avenue, Qinhuai District, Jiangsu, Nanjing Patentee after: China Design Group Co.,Ltd. Address before: 210014 No. 9, Ziyun Avenue, Qinhuai District, Jiangsu, Nanjing Patentee before: CHINA DESIGN GROUP Co.,Ltd. |
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| TR01 | Transfer of patent right |
Effective date of registration: 20220518 Address after: 210014 No. 9 Ziyun Avenue, Qinhuai District, Nanjing City, Jiangsu Province Patentee after: China Design Group Co.,Ltd. Patentee after: Huashe Testing Technology Co., Ltd Address before: 210014 No. 9 Ziyun Avenue, Qinhuai District, Nanjing City, Jiangsu Province Patentee before: China Design Group Co.,Ltd. |