KR102260449B1 - Apparatus for measuring crack of construction - Google Patents

Abstract

Disclosed is an apparatus for measuring a crack of a structure. In accordance with an embodiment of the present invention, the apparatus for measuring the crack of the structure comprises: a first arm unit which includes a first mainframe unit and a first stopper formed in an area on an upper surface of the first mainframe unit to protrude, and has a first engagement structure on a side surface; a second arm unit which includes a second mainframe unit, whose lower surface is placed on an upper surface of the first mainframe unit to slide, and a second stopper, which protrudes from one area on a lower surface of the second mainframe unit, and which has the first engagement structure formed on a side surface; a rotation unit which includes a first engagement plate, whose one surface has the first engagement structure, and whose other surface has a shaft member fixed, and a rotary member whose side surfaces have a second engagement structure corresponding to the first engagement structure, and which is placed to be rotatable around the shaft member; and a fixing unit whose one surface has the second engagement structure, and which is selectively engaged with the first arm unit, the second arm unit, and the rotation unit. Accordingly, the present invention is able to check the size of a crack regardless of the shape of structures and measure the progress in the first dimension, the second dimension, and the third dimension of the crack through various engagement relations of configurations having the same engagement structure.

Description

Apparatus for measuring cracks in structures {APPARATUS FOR MEASURING CRACK OF CONSTRUCTION}

The present invention relates to a device for measuring cracks in a structure, and more particularly, to a device for measuring cracks in a structure capable of measuring the size of a crack generated in a structure or the progress of the crack.

In general, the causes of cracks in structures are caused by various causes such as drying shrinkage of structures, excessive stress, or material problems. Among these cracks, there are cracks that do not affect the structural safety of the structure, but some cracks cause structural defects of the structure and eventually cause the collapse of the structure.

Therefore, for the safety of the structure, the occurrence of cracks must be investigated, and cracks in progress must be observed precisely and carefully.

The conventional crack gauge measures the crack by installing a gauge with a ruler at the point where the crack is formed and reading the movement value of the ruler contact area or measuring the displacement amount of the ruler using another measuring instrument such as vernier calipers. . Alternatively, the crack width or depth of a crack at a specific point is measured through a crack gauge, a microscope, or a strain gauge, and then, after a certain period of time has elapsed, the crack at the same point is measured again to evaluate the progress of the crack.

On the other hand, cracks formed in the structure may proceed in any one direction or in all directions of the x-axis, y-axis, and z-axis direction. There is a problem in that the progress cannot be precisely measured.

In addition, although a measuring device capable of measuring a three-dimensional crack has been developed, there is a problem that the configuration of the device is complicated and the price is high.

Republic of Korea Patent Registration No. 10-1901838 (2018.09.18) Republic of Korea Patent Registration No. 10-2044959 (2019.11.08) Republic of Korea Patent Registration No. 10-1765440 (2017.07.31) Republic of Korea Patent Registration No. 10-2024803 (2019.09.18)

An object of the apparatus for measuring cracks in a structure according to an embodiment of the present invention is to provide an apparatus for measuring cracks in a structure capable of measuring the size of a crack generated in a structure or the progress of the crack.

In addition, the apparatus for measuring cracks in a structure according to an embodiment of the present invention checks the size of a crack without restrictions on the shape of the structure through various coupling relationships of components having the same coupling structure, and one-dimensional and two-dimensional cracks , an object of the present invention is to provide a device for measuring cracks in a structure that can measure the three-dimensional progress.

The problems of the present invention are not limited to the technical problems mentioned above, and other technical problems that are not mentioned will be clearly understood by those skilled in the art from the following description.

The apparatus for measuring cracks in a structure according to an embodiment of the present invention includes a first body part, a first stopper protruding from an upper surface of the first body part, and a first coupling structure formed on a side surface of the first body part. 1 arm; a second body part having a lower surface disposed on the upper surface of the first body part to be slidably movable; and a second stopper protruding from one area of the lower surface of the second body part; a second arm portion in which is formed; A first coupling plate having the first coupling structure formed on one surface and a shaft member fixed to the other surface, and a second coupling structure corresponding to the first coupling structure being formed on the side surface and rotatably provided around the shaft member a rotating unit including a rotating member to be; and a fixing part having the second coupling structure formed on one surface thereof and selectively coupled to the first arm part, the second arm part, and the rotating part.

In addition, the rotating unit may include a first rotating unit and a second rotating unit, wherein the first rotating unit is selectively coupled to the first arm unit and the second arm unit, and the second rotating unit is selectively coupled to the first rotating unit. can

In addition, the rotating part may further include a second coupling plate extending vertically from the end of the first coupling plate, and having the first coupling structure formed on one surface thereof.

In addition, the first coupling structure or the second coupling structure is formed on the upper surface of the first arm part, and the second coupling structure or the first coupling structure is formed on the lower surface of the second arm part, so that the first arm part and the first coupling structure are formed. can be combined.

In addition, the first coupling structure may have a shape in which the cross-sectional area increases in one direction as a protrusion.

According to the embodiments of the present invention, there are at least the following effects.

The crack measuring apparatus of a structure according to an embodiment of the present invention checks the size of a crack without restrictions on the shape of the structure through various coupling relationships of the first rotating part and the second rotating part having the same structure, and the one-dimensionality of the crack , a crack measuring device of a structure capable of measuring the two-dimensional and three-dimensional progress is provided.

In addition, the first arm part, the second arm part, the rotating part, and the fixed part have the same coupling relationship, and by forming the coupling relationship at various positions, the number of coupling cases increases and thus it is applicable to various shapes of the structure.

In addition, by combining the first rotating part and the second rotating part having the same structure, one-dimensional, two-dimensional, and three-dimensional progress of the crack can be measured, thereby reducing the manufacturing cost.

The effects according to the present invention are not limited by the contents exemplified above, and more various effects are included in the present specification.

1 is a perspective view of an apparatus for measuring cracks in a structure according to an embodiment of the present invention;
2 is an exploded perspective view of an apparatus for measuring cracks in a structure according to an embodiment of the present invention;
3 is a view showing a first arm and a second arm of the apparatus for measuring cracks in a structure according to an embodiment of the present invention;
Figure 4 is a view showing a rotating part of the crack measuring apparatus of the structure according to an embodiment of the present invention;
5 is a view showing a fixing part of the crack measuring device of the structure according to an embodiment of the present invention;
6 and 7 are views showing various coupling examples of the crack measuring apparatus of a structure according to an embodiment of the present invention;
8 is a view for explaining the measurement of the progress of a crack in the x-axis direction using the crack measuring device of the structure according to an embodiment of the present invention;
9 is a view for explaining the measurement of the progress of cracks in the x and y-axis directions using the crack measuring apparatus of the structure according to an embodiment of the present invention;
10 is a view for explaining the measurement of the progress of cracks in the x, y, and z-axis directions using the crack measuring apparatus of the structure according to an embodiment of the present invention.

Since the present invention can apply various transformations and can have various embodiments, specific embodiments are illustrated in the drawings and described in detail in the detailed description. Effects and features of the present invention, and a method of achieving them, will become apparent with reference to the embodiments described below in detail in conjunction with the drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various forms, and should be understood to include all changes, equivalents, and substitutes included in the spirit and scope of the present invention.

Before the description, the terms described in the detailed description will be described. In the following embodiments, terms such as first and second are used for the purpose of distinguishing one constituent element from other constituent elements rather than a limiting meaning. Therefore, it goes without saying that the first component mentioned below may be the second component within the technical idea of the present invention. In addition, expressions in the singular include plural expressions unless the context clearly indicates otherwise. In addition, terms such as 'comprise' or 'have' mean that a feature, number, step, operation, component, part, or a combination thereof described in the specification exists, and one or more other features or components It does not preclude the possibility of adding

In addition, in the drawings, the size of the components may be exaggerated or reduced for convenience of description. For example, the size and thickness of each component shown in the drawings are arbitrarily shown for convenience of description, and thus the present invention is not necessarily limited to what is shown.

Hereinafter, an embodiment according to the present invention will be described in detail with reference to the accompanying drawings. In the description with reference to the accompanying drawings, the same or corresponding components are given the same reference numerals, and overlapping description thereof will be omitted.

The apparatus for measuring cracks in a structure according to an embodiment of the present invention relates to an apparatus for measuring cracks in a structure capable of measuring the size of cracks generated in a structure or the progress of the cracks, and more particularly, having the same bonding structure It relates to a crack measuring device of a structure that can check the size of a crack regardless of the shape of the structure and measure the one-dimensional, two-dimensional, and three-dimensional propagation of a crack through various coupling relationships of components.

1 is a perspective view of an apparatus for measuring cracks in a structure according to an embodiment of the present invention, and FIG. 2 is an exploded perspective view of an apparatus for measuring cracks in a structure according to an embodiment of the present invention.

The apparatus 1000 for measuring cracks in a structure according to an embodiment of the present invention includes a first arm part 100 , a second arm part 200 , a rotating part 300 , and a fixing part 400 .

3 is a view illustrating a first arm and a second arm of the apparatus for measuring cracks in a structure according to an embodiment of the present invention.

The first arm part 100 and the second arm part 200 are configured to measure the size of a crack formed in the structure and the progress of the crack in the x-axis direction.

The structure to be measured in this embodiment means that cracks are formed due to environmental factors such as concrete structures.

The first arm part 100 includes a first body part 110 and a first stopper 120 .

The first body part 110 is provided in a substantially rectangular parallelepiped shape, and a scale is formed on the upper surface to check the size of the crack width and the degree of progress in the x-axis direction in the drawing.

In addition, a first stopper 120 is formed on one area of the upper surface of the first body part 110 . The first stopper 120 is formed to protrude upward (in the z-axis direction in the drawing) from the end of the upper surface of the first body part 110 . The sliding movement of the first body part 110 / the second body part 210 is restricted by the first stopper 120 . The end of the first stopper 120 may be a reference point for measuring the size of the crack.

The second arm 200 includes a second body 210 and a second stopper 220 .

The second body part 210 is provided in a substantially rectangular parallelepiped shape, and the lower surface of the second body part 210 is placed on the lower surface of the first body part 110 and is coupled to be slidably movable. When the crack progresses along the x-axis direction, the fixing part 400, which will be described later, progresses along with the crack progress, and through this, the second arm part 200 slides on the first arm part 100 . Here, the sliding movement of the second arm unit 200 on the first arm unit 100 is a relative movement, meaning that the second arm unit 200 is fixed and only the first arm unit 100 moves. In other words, when the second arm part 200 slides on the first arm part 100 , it means that the contact area between the second arm part 200 and the first arm part 100 changes. (100) does not mean that only the second arm 200 is moved in the fixed state.

In addition, a second stopper 220 is formed in one area of the lower surface of the second body part 210 . The second stopper 220 is formed to protrude downward (the z-axis direction in the drawing) from the lower surface end of the second body portion 210 . The sliding movement of the first body part 110/second body part 210 is restricted by the second stopper 220 .

A first coupling structure 500 is formed on the side surfaces of the first arm part 100 and the second arm part 200 . The first coupling structure 500 includes the first arm 100/second arm 200 through the second coupling structure 600 such as the rotating part 300 and the fixing part 400 , the rotating part 300 and the fixed part. It is a configuration that can be combined with (400).

In this embodiment, the first coupling structure 500 is a protrusion, and the second coupling structure 600 is a groove. In this embodiment, the size of the crack can be checked and the progress of the crack can be measured regardless of the shape of the structure through the number of various assembly cases, and the first coupling structure 500 of the rotating part 300 to be described later is also the first arm part. (100) and the first coupling structure 500 of the second arm part 200 is the same, and the second coupling structure 600 is also the same.

In this embodiment, the first coupling structure 500 is provided in a shape in which the cross-sectional area increases in one direction, and the second coupling structure 600 is provided in a shape corresponding thereto. Accordingly, when the first coupling structure 500 and the second coupling structure 600 are coupled to each other, the sliding coupling is performed without directly interposing the coupling structure, and the separation between the coupled components is more reliably prevented through this. Accordingly, the first coupling structure 500 is formed on the upper surface of the first arm part 100 , and the second coupling structure 600 is formed on the lower surface of the second arm part 200 , so that the first arm part 100 and the second coupling structure 600 are formed. It can be prevented that the two arm parts 200 are separated from each other.

Meanwhile, as described above, a scale is formed on the upper surface of the first body part 110 , and the scale may be formed in the first coupling structure 500 or may be formed in other regions.

4 is a view showing a rotating part of the apparatus for measuring cracks in a structure according to an embodiment of the present invention.

The rotating unit 300 is configured to measure the size of a crack formed in the structure and the progress of the crack in the y-axis direction and the z-axis direction.

In this embodiment, the rotating unit 300 includes a first rotating unit 310 and a second rotating unit 320 . However, the first rotation unit 310 and the second rotation unit 320 are not different from each other, and have the same structure, but in order to distinguish which configuration they are coupled to, the first rotation unit 310 and the second rotation unit 320 are used as the first rotation unit 310 and the second rotation unit 320 . defined. In this embodiment, the first rotating unit 310 is defined as being coupled to the first arm 100/second arm 200, and the second rotating unit 320 is coupled to the first rotating unit 310, as described above. As described above, the configuration of the first rotation unit 310 and the second rotation unit 320 is the same, and the configuration will be described together.

The rotating part 300 includes a first coupling plate 330 , a second coupling plate 340 , and a rotating member 350 .

The first coupling plate 330 is provided in a substantially plate shape, the first coupling structure 500 is formed on one surface, and the shaft member 360 is fixed on the other surface.

The second coupling plate 340 is provided in a substantially plate shape, and a second coupling structure 600 is formed on one surface. The second coupling plate 340 extends vertically from the other surface of the first coupling plate 330 .

The first coupling plate 330 and the second coupling plate 340 have the same shape, only the difference is in whether the shaft member 360 is fixed, and the first coupling plate 330 and the second coupling plate 340 . may be integrally formed to have an approximately "B" shape.

The rotating member 350 is provided with a hollow portion formed in a substantially central portion to be fitted to the shaft member 360 , and is provided to be rotatable around the shaft member 360 . A second coupling structure 600 is formed on one side of the rotating member 350 . It is coupled to the first arm 100/second arm 200 through the second coupling structure 600 (the first rotation unit 310 ), and may be coupled to the first rotation unit 310 . (Second rotating part 320)

The rotating part 300 has a first coupling structure 500 formed with a first coupling plate 330 and a second coupling plate 340, respectively, and the first coupling plate 330 and the second coupling plate 300 are 90 to each other. °, various assembly structures are possible.

In the present embodiment, the first rotation unit 310 may be selectively coupled to the first arm unit 100 and/or the second arm unit 200 according to the shape of the structure, the direction in which the crack progresses, and the like. That is, the first rotation unit 310 is coupled only to the first arm unit 100 or the second arm unit 200 , or provided in two pieces to be coupled to both the first arm unit 100 and the second arm unit 200 , or to the first arm unit ( 100) and the second arm unit 200 may not be coupled to either.

And, a scale indicating an angle is formed on the upper surface of the rotating unit 300 .

5 is a view showing a fixing part of the apparatus for measuring cracks in a structure according to an embodiment of the present invention.

The fixing unit 400 is configured to be fixed to the structure. The fixing part 400 is provided in a substantially hexahedral shape, and the second coupling structure 600 is formed. The surface on which the second coupling structure 600 is not formed is fixed to the structure.

In this embodiment, two fixing parts 400 are provided, and are provided to be coupled to the first arm part 100 , the second arm part 200 , and the rotating part 300 through the second coupling structure 600 .

6 and 7 are views showing various coupling examples of the crack measuring apparatus of the structure according to an embodiment of the present invention.

If only the progress of the crack in the x-axis direction is measured, the fixing part 400 is coupled to the first arm part 100 and the second arm part 200, respectively, or to the first rotation part 310, Alternatively, it is coupled to the second rotation unit 320, and one of the surfaces on which the second coupling structure 600 is not formed is fixed to the structure.

When only the progress of the crack in the x-axis and y-axis directions is measured, the fixing part 400 is coupled to the first rotation part 310 or the second rotation part 320, respectively, and the x-axis, y-axis and When measuring progress in all directions of the z-axis, the fixing unit 400 is coupled to the second rotating unit 320 , respectively.

Hereinafter, an operation of the apparatus for measuring cracks in structures according to an embodiment of the present invention will be described. The operation of the crack measuring device of a structure will be described separately for crack propagation measurement in the x-axis direction, crack propagation measurement in the x-axis and y-axis directions, and crack propagation measurement in the x-axis, y-axis, and z-axis directions.

1. Measurement of crack propagation in the x-axis direction

8 is a view for explaining the measurement of the progress of a crack in the x-axis direction using the crack measuring apparatus of the structure according to an embodiment of the present invention.

When only the progress of the crack in the x-axis direction is measured, the fixing part 400 is directly coupled to the first arm part 100 and the second arm part 200 without the rotating part 300 , and a second coupling structure 600 is formed. One of the non-existent faces is fixed to the structure. Alternatively, only the first rotating unit 310 is coupled to the first arm unit 100 and the second arm unit 200 , respectively, and the fixing unit 400 is coupled to the first rotating unit 310 and a second coupling structure 600 is formed. One of the non-existent faces is fixed to the structure. Alternatively, the first rotating unit 310 is coupled to the first arm unit 100 and the second arm unit 200, respectively, the second rotating unit 320 is coupled to the first rotating unit 310, and the fixing unit 400 is One of the surfaces coupled to the second rotation unit 320 and on which the second coupling structure 600 is not formed is fixed to the structure.

The size of the crack can be confirmed by reading the scale of the first arm part 100 corresponding to the position of the crack.

When the crack progresses in the x-axis direction, the positions of the respective fixing parts 400 fixed to the structure are moved by the progress of the cracks, and the first arm part 100 and the first arm part 100 and the second part by the position movement of the fixing part 400 are moved. The contact area between the two arms 200 is changed.

That is, the area exposed to the outside of the upper surface of the first arm unit 100 increases, and the user can check the scale to determine in which direction and how much the crack has progressed.

2. Measurement of crack progress in the x-axis and y-axis directions

9 is a view for explaining the measurement of the progress of cracks in the x and y-axis directions using the crack measuring apparatus of the structure according to an embodiment of the present invention.

When measuring the progress of the crack in the x-axis and y-axis directions, only the first rotating part 310 is coupled to the first arm part 100 and the second arm part 200, respectively, and the fixing part 400 is the first rotating part ( One of the surfaces coupled to the 310 and on which the second coupling structure 600 is not formed is fixed to the structure. Alternatively, only the first rotating unit 310 is coupled to the first arm unit 100 and the second arm unit 200, respectively, the second rotating unit 320 is coupled to the first rotating unit 310, and the fixing unit 400 is One of the surfaces coupled to the second rotation unit 320 and on which the second coupling structure 600 is not formed is fixed to the structure.

The size and state of the crack can be checked by reading the scales of the first arm part 100 and the rotating part 300 corresponding to the location of the crack.

When the crack progresses only in the x-axis and y-axis directions or the y-axis direction, the position of the fixing part 400 changes and the second arm part 200 slides and moves between the first arm part 100 and the second arm part 200 . The contact area is changed. In addition, the first rotation unit 310 rotates in the y-axis direction, respectively.

That is, the area exposed to the outside of the upper surface of the first arm part 100 increases, and the user can check how much the crack has progressed in the x-axis direction by checking the scale. In addition, by checking the scale on the first rotating unit 310, it is possible to check how many degrees the first rotating unit 310 has been rotated.

The progress in the y-axis direction may be calculated from the size of the crack in the x-axis direction and the rotation angle of the first rotating part 310 .

3. Measurement of crack propagation in the x-axis, y-axis, and z-axis directions

10 is a view for explaining the measurement of the progress of cracks in the x, y, and z-axis directions using the crack measuring apparatus of the structure according to an embodiment of the present invention.

When measuring the progress of the crack in all directions of the x-axis, y-axis, and z-axis, the fixing part 400 is coupled to the second rotating part 320 , respectively.

When the crack progresses in the x-axis, y-axis, and z-axis directions, the position of the fixing part 400 is changed and the second arm part 200 slides to make contact between the first arm part 100 and the second arm part 200 . area is changed. In addition, the first rotation unit 310 is rotated by the progress in the y-axis direction, respectively, and the second rotation unit 320 is rotated by the movement in the z-axis direction, respectively.

Progress in the x-axis direction can be checked by reading the scale formed on the first arm part 100 , and it can be confirmed how many degrees the first rotation part 310 is rotated by checking the scale on the first rotating part 310 . The progress in the y-axis direction may be calculated from the size of the crack in the x-axis direction and the rotation angle of the first rotating part 310 . The progress in the z-axis direction may be calculated from the size of the crack in the x-axis direction and the rotation angle of the second rotating part 320 .

Therefore, according to the present invention, through various coupling relationships of components having the same coupling structure, the size of the crack can be confirmed regardless of the shape of the structure and the one-dimensional, two-dimensional, and three-dimensional progression of the structure can be measured. A crack measuring device is provided.

In the present invention, the use of all examples or illustrative terms (for example, etc.) is merely for describing the present invention in detail, and the scope of the present invention is limited by the above examples or illustrative terms unless limited by the claims. It is not limited. In addition, a person skilled in the art may recognize that various modifications, combinations, and changes may be configured according to design conditions and factors within the scope of the appended claims or their equivalents.

Therefore, the spirit of the present invention should not be limited to the above-described embodiments, and not only the claims to be described later, but also all ranges equivalent to or changed from these claims are of the spirit of the present invention. would be said to belong to the category.

1000: crack measuring device of the structure
100: first arm 110: first body part
120: first stopper 200: second arm part
210: second body part 220: second stopper
300: rotating part 310: first rotating part
320: second rotating part 330: first coupling plate
340: second coupling plate 350: rotating member
360: shaft member 400: fixed part
500: first coupling member 600: second coupling member

Claims (5)

a first arm part including a first body part and a first stopper protruding from an upper surface of the first body part, and having a first coupling structure formed on a side thereof;
a second body part having a lower surface disposed on the upper surface of the first body part to be slidably movable with each other; and a second stopper protruding from one area of the lower surface of the second body part; a second arm portion in which is formed;
A first coupling plate having the first coupling structure formed on one surface and a shaft member fixed to the other surface, and a second coupling structure corresponding to the first coupling structure being formed on the side surface and rotatably provided around the shaft member a rotating unit including a rotating member to be; and
a fixing part having the second coupling structure formed on one surface and selectively coupled to the first arm part, the second arm part, and the rotating part;
Crack measuring device of the structure comprising a.
The method of claim 1,
The rotating unit includes a first rotating unit and a second rotating unit,
The first rotating part is selectively coupled to the first arm part and the second arm part;
The second rotating part is a crack measuring device of a structure selectively coupled to the first rotating part.
The method of claim 2,
The rotating part,
The crack measuring device of the structure further comprising a second coupling plate extending vertically from the end of the first coupling plate, the first coupling structure is formed on one surface.
The method of claim 3,
The first coupling structure or the second coupling structure is formed on the upper surface of the first arm part,
A crack measuring device for a structure in which the second coupling structure or the first coupling structure is formed on a lower surface of the second arm part to be coupled to the first arm part.
The method of claim 4,
The first coupling structure is a protrusion, and the cross-sectional area increases in one direction.

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