KR101737546B1 - Test apparatus holder for concrete testing and test apparatus comprising the same - Google Patents

Abstract

The present invention relates to a probe device holder to test concrete capable of testing the inside of various shapes of concrete structures by a non-destructive method, and a probe device to test concrete having the same. The probe device holder to test concrete comprises: a transmission frame which has a transmission opening or a transmission groove to which a transmission probe is to be inserted; a first reception frame which has a first reception opening or a first reception groove to which a first reception probe is to be inserted; a second reception frame which has a second reception opening or a second reception groove to which a second reception probe is to be inserted; and a flexible connection unit which connects the transmission frame to the first reception frame to position the first reception frame between the transmission frame and the second reception frame, and connects the first reception frame to the second reception frame.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a concrete test holder for a concrete test,

Embodiments of the present invention relate to a probe device holder for concrete inspection and a probe device for inspection of concrete with the probe device holder. More particularly, the present invention relates to a probe device holder for concrete inspection that can inspect the inside of various concrete structures in a non-destructive manner And a sensor device for inspecting concrete having the same.

Concrete is widely used as one of the most common and generalized construction / building materials, and researches on performance improvement and stable quality control have been actively conducted. In particular, cracks in concrete are fundamental elements for evaluating the stability of a structure. Maintaining the design strength and maintaining homogeneity is essential for securing the stability of the structure itself, and is a basic measure for evaluating other properties.

Ultrasonic method can be used as a method of inspecting the cracks generated in the cured concrete to a certain extent in the inside of the concrete structure and performing inspection without affecting the concrete structure. This is a method of estimating the extent to which the cracks in the concrete have grown to the depth of the concrete structure by measuring the propagation velocity of the surface waves flowing on the surface of the concrete by emitting ultrasound to the concrete.

However, the conventional inspection apparatus for the ultrasonic method has a problem that the inspection process is cumbersome.

Disclosure of Invention Technical Problem [8] Accordingly, the present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a probe holder for a concrete test capable of inspecting the interior of a concrete structure of various shapes in a non-destructive manner and a probe device for a concrete test . However, these problems are exemplary and do not limit the scope of the present invention.

According to one aspect of the present invention, there is provided a transmission frame having a transmission aperture or a transmission groove to which a transmission transducer is to be inserted, a first reception frame having a first reception aperture or a first reception groove into which a first reception transducer is to be inserted, A second receiving frame having a second receiving aperture or a second receiving groove to which a receiving transducer is to be inserted and a second receiving frame in which the first receiving frame is positioned between the transmitting frame and the second receiving frame, And a flexible connection unit connecting the first reception frame and the second reception frame to each other, and a connector for a concrete inspection is provided.

The distance between the center of the transmission aperture or the transmission groove and the center of the second reception aperture or the second reception groove in a state in which the connection portion is extended such that the central axis of the connection portion is straight is a distance between the center of the transmission aperture or the transmission groove May be twice the distance between the center of the first receiving aperture or the first receiving groove.

The apparatus may further include a first adsorption unit located on the opposite side of the transmission frame to one side of the first reception frame direction and attached to the inspected object. Further, the apparatus may further include a second attracting unit located on the opposite side of the second receiving frame, which is opposite to the first receiving frame direction, and may be attached to the inspected object. The apparatus may further include a third receiving frame positioned between the second receiving frame and the second adsorbing unit and having a third receiving aperture or a third receiving groove into which a third receiving probe is inserted.

The first receiving unit is located on the other side of the first receiving frame, which is opposite to the first receiving frame, and the second receiving unit is located on the opposite side of the second receiving frame, And a second fastening part that can be coupled to the first fastening part. In this case, at least one of the first fastening portion and the second fastening portion may include a stretchable portion. And a third receiving frame located between the second receiving frame and the second coupling portion, the third receiving frame having a third receiving aperture or a third receiving groove into which a third receiving probe is to be inserted.

And a plurality of position fixtures coupled to the transmission frame and adjustable in distance between a distal end in a center direction of the transmission aperture or the transmission groove and a center of the transmission aperture or the transmission groove.

The connection portion may include a plurality of joints or chains.

According to another aspect of the present invention, there is provided a method for detecting a concrete object, comprising: selecting one of the above-mentioned concrete test holder holders for concrete inspection, a transmission probe inserted in the transmission opening or transmission groove to be detachable, And a first receiving transducer inserted in one receiving groove. At this time, it may further include a second receiving transducer inserted into the second receiving opening or the second receiving groove so as to be detachable.

Other aspects, features and advantages of the present invention will become apparent from the following detailed description, claims, and drawings.

According to one embodiment of the present invention as described above, a holder for a concrete inspection device capable of inspecting the interior of a concrete structure of various shapes in a non-destructive manner, and a concrete inspection device for a concrete inspection with the same can be realized. Of course, the scope of the present invention is not limited by these effects.

1 is a perspective view schematically showing a probe holder for a concrete inspection according to an embodiment of the present invention and probes that can be coupled to the holder.
FIG. 2 is a conceptual view schematically showing the inspection of the degree of defect occurrence of concrete using the probe holder for concrete inspection and the probes that can be coupled thereto.
FIGS. 3 and 4 are conceptual diagrams for explaining the principle of checking the degree of occurrence of defects in a concrete structure.
5 is a conceptual diagram schematically illustrating the inspection of the degree of occurrence of defects in a concrete using a probe holder for a concrete inspection according to another embodiment of the present invention and probes that can be coupled thereto.
FIG. 6 is a conceptual view schematically showing the inspection of the degree of occurrence of defects in a concrete using a probe holder for a concrete inspection according to another embodiment of the present invention and probes that can be coupled thereto.
7 is a plan view schematically showing a part of a holder for a concrete inspection device according to another embodiment of the present invention.
Fig. 8 is a cross-sectional view schematically showing a part of the probe device holder for concrete inspection of Fig. 1;
9 is a cross-sectional view schematically showing a part of a holder for a concrete inspection device according to another embodiment of the present invention.
10 is a cross-sectional view schematically showing a part of a holder for a concrete inspection device according to another embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated in the drawings and described in detail in the detailed description. The effects and features of the present invention and methods of achieving them will be apparent with reference to the embodiments described in detail below with reference to the drawings. However, the present invention is not limited to the embodiments described below, but may be implemented in various forms.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein like reference numerals refer to like or corresponding components throughout the drawings, and a duplicate description thereof will be omitted .

In the following embodiments, when various components such as layers, films, regions, plates, and the like are referred to as being " on " other components, . Also, for convenience of explanation, the components may be exaggerated or reduced in size. For example, the size and thickness of each component shown in the drawings are arbitrarily shown for convenience of explanation, and thus the present invention is not necessarily limited to those shown in the drawings.

In the following embodiments, the x-axis, the y-axis, and the z-axis are not limited to three axes on the orthogonal coordinate system, and can be interpreted in a broad sense including the three axes. For example, the x-axis, y-axis, and z-axis may be orthogonal to each other, but may refer to different directions that are not orthogonal to each other.

1 is a perspective view schematically showing a probe device holder 600 for concrete inspection according to an embodiment of the present invention and probes 10, 21, 22 that can be coupled thereto. 1, a concrete test holder 600 for a concrete test according to the present embodiment includes a transmission frame 100, a first reception frame 210, a second reception frame 220, and a connection unit 300 Respectively.

The transmission frame 100 has a transmission groove 103a so that the transmission probe 10 can be inserted. The first receiving frame 210 has a first receiving groove 213a so that the first receiving transducer 21 can be inserted. And the second receive frame 220 has a second receive groove 223a so that the second receive transducer 22 can be inserted.

The transmission frame 100 includes a transmission base 101 having a substantially flat shape as shown in Fig. 1 and a transmission accommodation portion 103 having a hollow cylindrical shape and located on the transmission base 101. Fig. The transmission groove 103a in which the transmission transducer 10 can be inserted is defined by the transmission base 101 and the transmission accommodation portion 103. [

The first reception frame 210 may have a shape similar to the transmission frame 100. That is, the first reception frame 210 also includes a first receiving base 211 having a substantially flat shape, and a first reception receiving portion 213 located on the first receiving base 211 and having an inner hollow cylindrical shape do. A first reception groove 213a through which the first reception transducer 21 can be inserted is defined by the first reception base 211 and the first reception reception unit 213. [ The second reception frame 220 also includes a second reception base 221 having a substantially flat shape and a second reception receiver 223 disposed on the second reception base 221 and having an empty cylindrical shape. A second reception groove 223a through which the second reception transducer 22 can be inserted is defined by the second reception base 221 and the second reception reception portion 223.

The connection unit 300 includes a first connection unit 310 and a second connection unit 320. The first connection unit 310 connects the transmission frame 100 and the first reception frame 210, 320 connects the first receiving frame 210 and the second receiving frame 220 so that the first receiving frame 210 is positioned between the transmitting frame 100 and the second receiving frame 220. Particularly, the first connection part 310 and the second connection part 320 have flexible characteristics. In order to have a flexible characteristic, the first connection part 310 and the second connection part 320 may include a plurality of joints or chains. In FIG. 1, the first connection part 310 and the second connection part 320 illustratively include a plurality of joint parts.

Specifically, the first connection unit 310 connecting the transmission frame 100 and the first reception frame 210 includes a plurality of first connection plates 311 and a plurality of second connection plates 311 interposed between the first connection plates 311, And the first joint 313. Of course, the first joint 313 is not interposed only between the first connection plates 311 but between the transmission base 101 of the transmission frame 100 and the neighboring first connection plate 311, But may also be interposed between the first receiving base 211 of the receiving frame 210 and the neighboring first connecting plate 311.

Here, the first joint 313 may have a structure such as a hinge. For example, the first joint 313 may include a structure that is connected to the first connection plate 311 of one of the two first connection plates 311 adjacent to each other and a structure that is connected to the first connection plate 311 of the other side, And may have a configuration in which they are meshed with each other so as to be rotatable. Of course, a part of the first joint 313 is part of the first joint plate 311 on one side of the two first connection plates 311 adjacent to each other, and the remaining part of the first joint 313 is a part of the first joint 311 And may be a part of the first connecting plate 311 on the other side of the plates 311, for example. Also, the first connection plates 311 and the first joints 313 may have a configuration similar to a metal watch band as a whole.

The second connection part 320 connecting the first reception frame 210 and the second reception frame 220 is also provided between the second connection plates 321 and the second connection plates 321 And a second joint 323. Of course, the second joint part 323 is not interposed only between the second connection plates 321 but between the first reception base 211 of the first reception frame 210 and the neighboring second connection plate 321 And between the second receiving base 221 of the second receiving frame 220 and the second connecting plate 321 adjacent thereto.

The concrete test holder 600 for testing concrete according to the present embodiment easily tests the depth of crack growth inside the concrete structure having various types of surfaces due to the flexible characteristics of the connection portion 300 . Specifically, FIG. 1 is a conceptual view schematically showing the inspection of the degree of occurrence of defects in the concrete using the probe device holder 600 for concrete inspection and the transducers 10, 21, As shown in FIG. 2, even when the cross-section of the column has a substantially circle-like shape when inspecting whether or not the cracks have grown to some extent inside the column of the pier or the like, the concrete test holder for concrete inspection 600 can be easily deformed such that the overall shape conforms to the shape of the curved surface of such a concrete structure. Accordingly, it is possible to easily check the degree of crack growth in the concrete structure having various types of surfaces.

Meanwhile, in order to enhance the convenience of the internal inspection of the concrete structure, the concrete inspection holder 600 for concrete inspection may further include a first adsorption unit 410 and / or a second adsorption unit 420 as shown in FIG. 1 . 1, the first adsorption unit 410 is located on the opposite side of the transmission frame 100 in the direction of the first reception frame 210 (+ y direction), and is attached to the inspected object Can have a characteristic that can be achieved.

1, the first adsorption unit 410 includes a first adsorption base 411 and a first adsorption plate 413 connected to the first adsorption unit 411, . The first adsorption base 411 may be connected to the transmission base 101 of the transmission frame 100 through a connection part having a structure similar to that of the first connection part 310. The first adsorption plate 413 is located on the lower surface (-z direction) of the first adsorption base 411, and is connected to a through hole passing through the first adsorption base 411 as shown in FIG. 1 . The second adsorption unit 420 may have a configuration similar to that of the first adsorption unit 410. That is, the second adsorption unit 420 is located on the other side of the second reception frame 220, which is opposite to the first reception frame 210 (-y direction), and has characteristics that can be attached to the inspected object Lt; / RTI > For example, as shown in FIG. 1, the second adsorption unit 420 may include a second adsorption base 421 and a second adsorption plate 423 connected thereto. The second adsorption base 421 may be connected to another base (in the case of FIG. 1, the third receiving base 231) via a connecting portion having a structure similar to that of the first connecting portion 310. The second adsorption plate 423 is located on the lower surface (-z direction) of the second adsorption base 421, and is connected to a through hole passing through the second adsorption base 421 as shown in FIG. 1 .

FIGS. 3 and 4 are conceptual diagrams for explaining the principle of checking the degree of occurrence of defects in a concrete structure. The transmission transducer T and the reception transducer R are brought into contact with the surface of the concrete structure so that the transmission transducer T and the reception transducer R are spaced apart by a predetermined distance L as shown in Fig. In such a state, the transmitting transducer T transmits, for example, an ultrasonic wave having a frequency of approximately 90 KHz, and the receiving transducer R receives ultrasonic waves passing through the concrete structure. In this case, if there is no crack in the concrete structure, the ultrasonic wave emitted from the transmission transducer (T) is transmitted to the reception transducer (R), and the shortest distance is around the surface of the concrete structure. At this time, the time (the shortest time) that the ultrasonic wave emitted from the transmission transducer T reaches the reception transducer R may be T _o .

However, if a crack is generated in the concrete structure as shown in FIG. 4 and the crack grows toward the interior of the concrete structure by a length H, the shortest path that the ultrasonic wave emitted from the transmission transducer T reaches to the reception transducer R is It is the path that goes around the crack. It is preferable that the crack is positioned at the center of the center between the transmitting probe T and the receiving probe R while the transmitting probe T and the receiving probe R are spaced by a distance L, And measures the time (the shortest time) that the ultrasonic waves reach the receiving transducer R. Assuming that the measured time is T _C , the length H of the crack can be determined according to the following equation according to the geometrical structure, assuming that the ultrasonic velocity in the concrete structure is approximately constant.

[Mathematical Expression]

In this way, the inside of the concrete structure can be inspected by inspecting the transmission transducer (T) and the receiving transducer (R) in contact with the concrete structure. In the case of the conventional inspection apparatus, the surface of the concrete structure There is a problem in that the ease of inspection is remarkably reduced when various shapes other than the flat plate shape are used. However, when using the concrete test holder 600 for testing concrete according to the present embodiment, since the overall shape of the concrete test holder 600 for concrete inspection is easily deformed to conform to the shape of the surface of such concrete structure, The degree of crack growth inside the concrete structure having the surfaces of the cracks can be easily checked.

In particular, when the concrete device holder 600 for concrete inspection is further provided with the first adsorption unit 410 and / or the second adsorption unit 420, the concrete device holder 600 for concrete inspection is used as the object to be inspected The inspection can be performed in a state where it is attached to the surface of the concrete structure, so that the inspection efficiency and convenience can be remarkably improved.

1, the center of the transmission groove 103a into which the transmission transducer 10 is inserted, in a state in which the connection portion 300 is extended (in the y-axis direction) such that the central axis of the connection portion 300 is straight, And the center of the second receiving groove 223a into which the second receiving transducer 22 is inserted are set so that the distance d2 between the center of the transmitting groove 103a into which the transmitting transducer 10 is inserted and the center of the first receiving transducer 22 The distance d1 between the centers of the first receiving grooves 213a into which the first receiving grooves 213a are inserted can be doubled.

As described above, when there is a crack in the vicinity of the surface of the concrete structure, the time required for the ultrasonic wave transmitted from the transmission transducer to be detected by the reception transducer is increased. If the distance between the transmitting probe 10 and the second receiving probe 22 is twice the distance to the transmitting probe 10 and the first receiving probe 21 and there is no crack near the surface of the concrete structure, The time taken for ultrasonic waves transmitted from the transmission transducer 10 to be detected by the second reception transducer 22 is approximately twice as long as the time required for the ultrasonic waves transmitted from the transmission transducer 10 to be detected by the first reception transducer 21. [

In this situation, when the time required for the ultrasonic wave transmitted from the transmission transducer 10 to be detected by the second reception transducer 22 is approximately twice the time required for the detection by the first reception transducer 21, It can be concluded that there is no crack in the vicinity of the surface of the concrete structure in the section from the transducer 10 to the second reception transducer 22 via the first reception transducer 21. If the time taken for the ultrasonic wave transmitted from the transmission transducer 10 to be detected by the second reception transducer 22 is larger than about twice the time required for the ultrasonic wave transmitted from the transmission transducer 10 to be detected by the first reception transducer 21, It is possible to suspect that there is a crack in the vicinity of the surface of the concrete structure in the section between the reception transducer 21 and the second reception transducer 22, so that the close inspection of the relevant section can be attempted. Conversely, if the time required for ultrasonic waves transmitted from the transmitting transducer 10 to be detected by the second receiving transducer 22 is less than about twice the time required for the ultrasonic waves transmitted from the transmitting transducer 10 to be detected by the first receiving transducer 21, It is possible to suspect that there is a crack in the vicinity of the surface of the concrete structure in the section between the transmission transducer 10 and the first reception transducer 21 so that the close inspection of the relevant section can be attempted.

1, the center of the transmission groove 103a into which the transmission transducer 10 is inserted and the center of the transmission groove 103a in the state where the connection portion 300 is extended (in the y-axis direction) so that the central axis of the connection portion 300 is straight The distance d2 between the centers of the second reception groove 223a into which the second reception transducer 22 is inserted is smaller than the distance d2 between the center of the transmission groove 103a into which the transmission transducer 10 is inserted and the center of the first reception transducer 21, The distance d1 between the center of the first reception groove 213a into which the first reception groove 213a is inserted is doubled, so that the inspection of the concrete structure can be easily performed.

As shown in FIG. 1, the concrete probe holder 600 for concrete inspection is disposed between the second receiving frame 220 and the second attracting portion 420, and the third receiving probe 23 is inserted between the second receiving frame 220 and the second attracting portion 420, And a third receiving frame 230 having a receiving groove 233a. The third receiving frame 230 may also include a third receiving base 231 having a substantially flat shape and a third receiving receiving portion 233 positioned on the third receiving base 231 have. A third reception groove 233a through which the third reception probe 23 can be inserted is defined by the third reception base 231 and the third reception reception portion 233.

And the third connection unit 330 having a flexible characteristic may connect the second reception frame 220 and the third reception frame 230. [ The third connection part 330 connecting the second reception frame 220 and the third reception frame 230 may also include a plurality of third connection plates 331, And a third joint 333, Of course, the third joint 333 is not interposed only between the third connection plates 331 but between the second reception base 221 of the second reception frame 220 and the neighboring third connection plate 331 And between the third receiving base 231 of the third receiving frame 230 and the neighboring third connecting plate 331. The second adsorption unit 420 may be connected to the third reception frame 230 by the connection unit, specifically to the third reception base 231 of the third reception frame 230.

Also in this case, as shown in FIG. 1, in a state in which the connecting portion 300 is extended (in the y-axis direction) such that the center axis of the connecting portion 300 is straight, the transmitting groove 103a in which the transmitting transducer 10 is inserted The distance d2 between the center and the center of the second receiving groove 223a into which the second receiving transducer 22 is inserted is smaller than the distance d2 between the center of the transmitting groove 103a into which the transmitting transducer 10 is inserted and the center of the first receiving transducer The distance between the center of the transmission groove 103a into which the transmission transducer 10 is inserted and the center of the third reception transducer 32a is set to be twice as large as the distance d1 between the center of the first reception groove 213a into which the transmission transducer 10 is inserted, The distance d3 between the centers of the third reception grooves 233a into which the transmission transducer 10 is inserted is smaller than the distance d3 between the center of the transmission groove 103a into which the transmission transducer 10 is inserted and the center of the first reception transducer 21 into which the first reception transducer 21 is inserted And the distance d1 between the centers of the grooves 213a is set to be three times, the inspection in a long section of the concrete structure is easy and quick It may be in progress.

In the meantime, although two transceivers 21 and 22 or three transceivers 21, 22 and 23 are used as a transceiver in addition to one transceiver 10, the present invention is not limited thereto no. There is provided a conceptual diagram schematically showing the inspection of the degree of occurrence of defects in concrete using a probe holder 600 for a concrete inspection according to another embodiment of the present invention and transducers 10 and 21 that can be coupled thereto As shown in FIG. 5, it is also possible to perform inspections inside the concrete structure using only the transmission transducer 10 and the first reception transducer 21. Also in this case, the concrete inspection holder 600 for a concrete inspection may have a second reception frame 220 and / or a third reception frame 230 in addition to the transmission frame 100 and the first reception frame 210.

In this case, the transmission probe 10 is installed in a state where the concrete inspection holder 600 is attached to the concrete structure to be inspected by using the first suction part 410 and / or the second suction part 420 The first receiving transducer 21 is coupled to the transmitting frame 100 and the ultrasonic arrival time is measured by coupling the first receiving transducer 21 to the first receiving frame 210, The first receiving transducer 21 is separated from the second receiving frame 220 and is separated from the third receiving frame 230 by separating the first receiving transducer 21 from the second receiving frame 220 and measuring the arrival time of the ultrasonic wave by coupling to the second receiving frame 220 It is possible to measure the arrival time of the ultrasonic waves. It can be understood that the first receiving transducer 21 is also utilized as the second receiving transducer 22 and / or the third receiving transducer 23. [ In this case, since only the position of the first receiving transducer 21 is changed in a state where the holder for a concrete inspection device 600 is attached on the surface of a concrete structure of various types of objects to be inspected, Can be performed. Since the position to be inspected by the first reception frame 210, the second reception frame 220 and the third reception frame 230 is specified in advance, it is possible to easily and quickly change the position of the first reception transducer 21 Can be performed.

It has been described that the first adsorption unit 410 and the second adsorption unit 420 are located on one side and the other side of the connection structure of the transmission frame 100 and the plurality of reception frames 210, 220 and 230 Respectively. That is, the first adsorption unit 410 and the second adsorption unit 420 are positioned at one end and the other end of the concrete inspection holder 600, respectively. However, the present invention is not limited to this, and at least one attracting unit may be positioned between the transmitting frame 100 and the plurality of receiving frames 210, 220 and 230, or between the plurality of receiving frames 210, 220 and 230 At least one adsorption section may be located. This is for the purpose of stably maintaining the state where the concrete device holder 600 for concrete inspection is attached on the surface of the concrete structure, which is an object of inspection, even if the length of the concrete device holder 600 for concrete inspection becomes long.

On the other hand, the configuration for stably attaching the probe device holder 600 for concrete inspection on the surface of the concrete structure as the inspected object is not limited to the configuration as described above. For example, it is possible to check the degree of occurrence of defects in the concrete using the probe holder 600 for concrete inspection according to another embodiment of the present invention and the transducers 10, 21, 22, As shown in FIG. 6, which is a conceptual view schematically showing, the concrete test holder 600 for a concrete inspection may have a first fastening part 430 and a second fastening part 440. The first fastening part 430 is located on the other side opposite to the first side of the transmission frame 100 in the direction of the first reception frame 210 and the second fastening part 440 is located on the opposite side of the first reception frame 210, And may be located on the opposite side of one side in the direction of the frame 210. 6, the second fastening part 440 may be coupled to the second receiving frame 230 of the third receiving frame 230, 210), which is opposite to the one side.

6, the first fastening part 430 includes a first fastening base 431 connected to the transmission base 101 of the transmission frame 100 by a connecting part, A first cord 435 coupled to the first cord 431 and a first fastening member 437 connected to the other end of the first cord 435. The second fastening part 440 includes a second fastening base 441 connected to the third receiving base 131 of the third receiving frame 230 by a connecting part, And a second fastening member 447 connected to the other side of the second cord 445. [ At this time, the first fastening member 437 and the second fastening member 447 may be fastened together so as to be detachable. At least one of the first code 435 and the second code 445 includes a stretchable material such as rubber and may have stretchability.

In the concrete test holder 600 for a concrete test according to the present embodiment, when a concrete structure such as a pier supporting a bridge is inspected, it can be easily and firmly attached to the structure. In particular, since at least one of the first code 435 and the second code 445 has elasticity, it can be firmly and easily attached to a structure such as a column. For reference, the first fastening member 437 and the second fastening member 447 may be combined with each other as an arm fastening member and an male fastening member, or they may have an annular shape so that the rings are engaged with each other , Various modifications are possible.

As shown in FIG. 1, the holder for a concrete inspection according to another embodiment of the present invention includes a first adsorption unit 410 and a second adsorption unit 420, The first fastening part 430 and the second fastening part 440 may be further provided. 6, it is also possible to provide at least a first and a second fastening part 430 and 440 between the transmission frame 100 and the plurality of reception frames 210, 220 and 230, respectively, One adsorption section may be located, or at least one adsorption section may be located between the plurality of reception frames 210, 220, and 230. [

FIG. 7 is a plan view schematically showing a part of a holder for a concrete inspection, specifically, a transmission frame 100 according to another embodiment of the present invention. The transmission frame 100 of the probe apparatus holder for concrete inspection according to the present embodiment further includes a plurality of position fixing units 510, 520, and 530. The position fixing portions 510, 520, and 530 are coupled to the transmission frame 100. The position fixing portions 510, 520, and 530 are connected to the transmission groove 100a, Is adjusted to be adjustable.

For example, the transmission receiving portion 103 of the transmission frame 100 may have a through hole through which the transmission receiving portion 103 has a hollow cylindrical shape, and a thread and a thread are formed on the inner surface of the through hole. Although not shown in the drawings for convenience, each of the position fixtures 510, 520, and 530 has a bolt-like shape and also threads and threaded bosses are formed on the outer surface so that the position fixtures 510, 520, And can be screwed to the accommodating portion 103. Accordingly, depending on the rotational direction and the degree of rotation of the bolt-like position fixing portions 510, 520, and 530, the front end in the center direction of the transmission groove 103a of each of the position fixing portions 510, 520, The distance d between the centers of the grooves 103a can be adjusted.

Concrete inspection transducers 10, 21, 22, 23 may have various sizes. When these transducers 10, 21, 22 and 23 are connected to the transmission frame 100, the first reception frame 210, the second reception frame 220 and / or the third reception frame 230, It is necessary to consider that the transducers 10, 21, 22, and 23 are not separated from each other. The concrete inspection holder 600 for a concrete inspection according to the present embodiment uses the position fixing portions 510, 520 and 530 as described above to prevent the transmission probe 10 from detaching from the transmission frame 100 And the center of the transmission probe 100 can be precisely positioned at the center of the transmission frame 100. Of course, at least any one of the first to third receiving frames 210 to 230 in addition to the transmitting frame 100 includes the position fixing portions, and the distance between the front end in the center direction of the receiving groove and the center of the receiving groove is adjusted .

8 is a cross-sectional view schematically showing a part of the concrete test holder 600 for concrete inspection in FIG. 1, specifically, the transmission frame 100. As shown in FIG. As shown in Fig. 8, the transmission frame 100 includes a transmission base 101 in the form of a flat plate, and a transmission receiving portion 103 in a hollow cylindrical shape located on the transmission base 101. [ Thus, the transmission base 101 and the transmission reception unit 103 define the transmission groove 103a. The transmission receiver 103 may be formed of various materials, and may include a metal, as well as a polymer resin including plastic. The transmission base 101 may include a polymer resin such as acryl or the like so that ultrasonic waves transmitted from the transmission transducer 10 can pass smoothly.

9, which is a cross-sectional view schematically showing a portion of a holder for a concrete test according to another embodiment of the present invention, the transmission base 101 is a flat plate And has an opening corresponding to the empty space of the transmission accommodating portion 103, so that the filling layer 101a can fill the opening. The transmission base 101 may include metal or the like to have high durability, and the filling layer 101a may include acryl or the like so that ultrasonic waves can smoothly pass through.

Furthermore, the filling layer 101a may include an elastic member such as a sponge. As described above, in the case of a bridge pillar or the like supporting a bridge, the concrete surface has a shape similar to a cylinder, so that the concrete surface forms a curved surface instead of a flat plate. Therefore, when the transmission base 101 has a flat plate shape, it may not be brought into close contact with the curved surface of such an inspected object. However, when the filler layer 101a adjacent to the bottom surface of the transmission probe 10 includes an elastic member such as a sponge, the bottom surface of the filler layer 101a, which is brought into contact with the surface of the inspected object, The bottom surface of the transmission frame 100 including the filling layer 101a can be brought into close and close contact with the curved surface of the inspected object. Thus, the ultrasonic waves transmitted from the transmitting transducer 10 can be efficiently transmitted to the inspected object.

In the meantime, although the case where the transmission frame 100 has the transmission groove 103a has been described so far, the present invention is not limited thereto. For example, as shown in FIG. 10, which is a cross-sectional view schematically showing a transmission frame 100 as a part of a concrete test holder for concrete inspection according to another embodiment of the present invention, the transmission base 101 has a flat plate shape It is possible to have an opening corresponding to the empty space of the transmission accommodating portion 103 and to connect the opening to the hollow of the transmission accommodating portion 103. [ In this case, it can be understood that the transmission frame 100 has a transmission aperture 103a that is not a transmission groove.

Although the structure of the transmission frame 100 has been described with reference to Figs. 8 to 10, the present invention is not limited thereto. That is, at least one of the first reception frame 210 to the third reception frame 230 may have any one of the structures shown in FIGS. 8 to 10.

Meanwhile, the concrete test holder 600 for concrete inspection has been mainly described, but the present invention is not limited thereto. A concrete probe holder 600 for concrete inspection according to any one of the above-described various embodiments, a transmission probe 10 detachably inserted into a transmission opening or a transmission groove, Or the first receiving transducer 21 inserted in the first receiving groove are also included in the scope of the present invention. Of course, the concrete inspection apparatus for concrete inspection according to another embodiment of the present invention may also include a second receiving probe 22 that is detachably inserted into the second receiving opening or the second receiving groove and / Or a third receiving transducer 22 inserted into the third receiving groove.

For reference, both the transmission probe 10, the first reception probe 21, the second reception probe 22 and / or the third reception probe 23 are electrically connected to the control unit via a cable, The transmission probe 10 transmits ultrasonic waves and when the first reception transducer 21, the second reception transducer 22 and / or the third reception transducer 23 receives ultrasonic waves, the reception signal or reception fact And transmitted to the control unit via the cable. Accordingly, the control unit is operated until the first reception transducer 21, the second reception transducer 22 and / or the third reception transducer 23 receive ultrasonic waves from the time when the transmission probe 10 starts transmitting ultrasonic waves. Time.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art . Therefore, the true scope of the present invention should be determined by the technical idea of the appended claims.

10: Transmitting probe 21: First receiving probe
22: second reception probe 23: third reception probe
100: transmission frame 210: first reception frame
220: second reception frame 230: third reception frame
300: connection part 310: first connection part
320: second connection part 330: third connection part
410: first adsorption section 420: second adsorption section

Claims (12)

A transmission frame having a transmission aperture or transmission groove to which a transmission probe is to be inserted;
A first receiving frame having a first receiving aperture or first receiving groove into which a first receiving transducer is inserted;
A second receiving frame having a second receiving aperture or a second receiving groove into which a second receiving transducer is to be inserted;
The first receiving frame is connected to the first receiving frame so that the first receiving frame is located between the transmitting frame and the second receiving frame, and the first receiving frame is connected to the second receiving frame, ; And
And a second absorption unit disposed on the other side opposite to the one side of the transmission frame in the direction of the first reception frame,
And a holder for holding a probe for a concrete inspection. The method according to claim 1,
The distance between the center of the transmission aperture or the transmission groove and the center of the second reception aperture or the second reception groove in a state in which the connection portion is extended such that the central axis of the connection portion is straight is a distance between the center of the transmission aperture or the transmission groove Wherein the distance between the centers of the first receiving aperture or the first receiving groove is twice that of the first receiving aperture or the center of the first receiving groove. delete The method according to claim 1,
Further comprising a second attracting unit located on the other side opposite to one side of the second received frame in the direction of the first receiving frame and attachable to the inspected object. delete The method according to claim 1,
A first fastening part located on the other side opposite to one side of the transmission frame in the direction of the first reception frame; And
A second fastening part located on the other side opposite to the first side of the second reception frame in the direction of the first reception frame and coupled to the first fastening part;
Further comprising: a holder for a concrete inspection. The method according to claim 6,
Wherein at least one of the first fastening portion and the second fastening portion includes a stretchable portion. The method according to claim 6,
A third receiving frame located between the second receiving frame and the second coupling portion, the third receiving frame having a third receiving aperture or a third receiving groove into which a third receiving probe is inserted;
Further comprising: a holder for a concrete inspection. The method according to any one of claims 1, 2, 4, and 6 to 8,
Further comprising a plurality of position fixtures coupled to the transmission frame and adjustable in distance between a distal end in the center direction of the transmission aperture or the transmission groove and a center of the transmission aperture or center of the transmission groove, Device holder. The method according to any one of claims 1, 2, 4, and 6 to 8,
Wherein the connecting portion includes a plurality of joints or chains. 8. A concrete inspection holder for a concrete test according to any one of claims 1, 2, 4, and 6 to 8;
A transmit transducer inserted in the transmit aperture or transmit groove to be removable; And
A first receiving transducer inserted into the first receiving aperture or the first receiving groove to be removable;
And a control unit for controlling the conveying unit. 12. The method of claim 11,
Further comprising a second receiving transducer inserted into the second receiving aperture or the second receiving groove to be detachable.

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