KR101765806B1 - Crack width measuring device for long range structures with Endoscope camera - Google Patents

Abstract

The present invention relates to an apparatus to objectively and conveniently measure a width of a crack when the crack is generated at a long distance or in a place where an inspector cannot easily approach and, more specifically, relates to an apparatus to measure the width of a crack capable of simply and accurately measure even a crack generated in a place where an inspector cannot approach in a long distance by combining a circular crack scale capable of measuring the width of the crack through rotation of a crack scale mounting base as a plurality of solid lines having a thickness as large as the thickness of each crack width from a minute crack to a large crack marked by radial lines around a central portion thereof; a length-adjustable pole; an endoscopic camera provided inside the pole; and a display device connected to the endoscopic camera. As a result, the present invention is able to secure quantitative data to establish measures for effective repair and reinforcement while improving an efficiency of operation by promoting safety and convenience of a user; and is able to enhance portability and convenience.

Description

Technical Field [0001] The present invention relates to an apparatus for measuring a crack width of a remote structure using an endoscope,

The present invention relates to a device for measuring the width of a crack generated at a remote location which can not be easily accessed by a structure inspector, and more particularly to a device for measuring the width of a crack by a crack width from a minute crack to a large crack, A circular crack ruler, which is marked with a large number of radiation, and an endoscope camera capable of photographing it are installed at the tip of a length-adjustable rod so that a circular crack scale is contacted with a crack at a portion where the inspector can not access, The present invention relates to an apparatus for measuring a crack width of a remote structure using an endoscope capable of measuring a crack width in an objective and simple manner, achieving user's convenience, improving work efficiency, and securing quantitative data for establishing effective repair and reinforcement measures .

Generally, cracks are the most important factor in durability and structural safety in concrete structures. Since concrete is a material with a lower tensile strength than compressive strength, it is inevitable that cracks occur in the concrete structure.

Cracks in concrete are caused by a complex problem such as drying shrinkage of structures, excessive stress, or material problems, and concrete fracture is always initiated by cracking and then progresses gradually. Therefore, in order to ensure the safety of concrete structures, it is necessary to investigate the occurrence of cracks and to observe especially cracks in progress with interest.

The purpose of this crack investigation is to evaluate the cracks occurring in the structure and to obtain basic data for selection of repair, reinforcement, and selection of repair and reinforcement methods. The maximum width and length of cracks, and the progress of the cracks. The most important of these crack investigation items is the crack width.

Conventionally, in order to investigate the crack width, a cracker, a crack gauge, a microscope, a crack microscope and the like are approached to a position at which a crack is generated by using an accessing equipment or a ladder to investigate a crack width by using a crack gauge, If a crack gauge is contacted with a crack gauge, the crack width is estimated visually from a distance of 4 to 5 m away even if this is impossible.

In addition, even if approaching cracks by approaching equipment to measure the width of cracks that are difficult to access at all times, the crack gauge must be in direct contact with the cracks in dangerous and harsh conditions, There was a cost loss. In addition, when the crack width is estimated with the naked eye, there is a problem that the reliability against the crack width can not be secured.

Korean Patent Registration No. 10-1403915

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems,

It is possible to form a circular crack scale marked by a plurality of radial lines around solid lines having a thickness corresponding to each crack width from a micro crack to a large scale crack and to adjust the crack width to the width of the crack The present invention provides an apparatus for measuring a crack width of a remote structure using an endoscope capable of obtaining quantitative data for establishing effective repair and reinforcement measures as well as improving efficiency of a worker by making it possible to measure the size objectively and easily, There is a purpose.

It is also an object of the present invention to provide a device capable of measuring a crack width generated in difficult conditions or in a difficult condition by contacting a circular crack scale with a multi-stage length-adjustable pole even if it is a remote crack which is difficult to access .

In addition, the remote cracks consist of a circular crack scale and an endoscopic camera at one end of the pole, and a display device connected to the endoscope camera at the other end of the pole allows real-time shooting and image confirmation of cracks. The present invention provides a crack width measurement apparatus for a remote structure capable of achieving such a crack width.

Particularly, since the crack generated on the slope can not be brought into contact with the crack by the circular crack scale only with the linear pole, it is possible to adjust the angle of the circular crack scale and the endoscope camera to the predetermined angle with the pole, And a crack width measuring device for a long distance structure.

According to an aspect of the present invention, there is provided a semiconductor device comprising: a pole having a through hole formed therein;

An endoscopic camera inserted in an inner through hole of the pole to capture a crack of the structure;

A circular crack scale ruler formed in a funnel shape formed at one end of the pole and expanded outwardly and formed of a transparent material that is projected to the outside so that the endoscope camera can take a picture of a crack of the structure;

A fixing socket formed at an end of the circular crack scale scale mount and fixing the endoscope camera penetrating the inside thereof;

The endoscopic camera is formed on one side of a circular crack scale scale mount corresponding to the endoscope camera. When the endoscope camera photographs a structure, a plurality of dimensional scales are radially formed around the center to measure a crack width dimension of the structure, A circular crack scale which is marked by the size of the crack width and is contacted to the crack of the structure by the rotation scale and then taken and measured by the endoscope camera;

A circular crack crack scale retention ring coupled to a distal end edge of the circular crack scale scale mount to detach and attach the circular crack scale and to prevent the circular crack scale scale mount and the circular crack scale from being in direct contact with the structure;

A display device connected to the endoscope camera and capable of checking the crack width photographed by the endoscope camera;

And a holder device installed at one end of the pole to fix a display device connected to the endoscope camera,

Wherein the circular crack scale is spaced apart by a distance of 3 to 8 cm with respect to the center of the circular crack, and the accurate size of the crack can be measured.

In addition, the pole of the present invention can distribute the load of the apparatus for measuring the crack width of the far-end structure using the endoscope, and when the pole is extended long, there is provided a shoulder device for facilitating adjustment of the front, back, The present invention relates to an apparatus for measuring a crack width of a remote structure using an endoscope.

In addition, the endoscope camera of the present invention is connected to a display device of one of a smart phone, a tablet PC, and a notebook computer at one end, and the size of a crack width of the structure can be confirmed by an image. Width measuring apparatus.

Further, the holder device of the present invention comprises: a body portion to which the pole is fitted;

A holder portion to which the display device is directly fixed by the tightening member;

And a connection part for connecting the body and the holder part to form a gimbal for driving the display device fixed to the holder part in multiple directions. The apparatus for measuring a crack width of a remote structure using an endoscope will be.

As described above, the apparatus for measuring a crack width of a remote structure using an endoscope according to the present invention is characterized in that a plurality of dimensional scales are radially formed centering on a central portion of a circular crack scale, This makes it possible to quickly and easily measure the size of the crack width by comparing the dimension of the circular crack scale with the crack width of the structure generated in comparison with the conventional linear scale scale, thereby improving the efficiency of the work It is possible to obtain quantitative data for establishing effective maintenance and reinforcement measures.

In addition, it is possible to measure the dimension of cracks generated at a high place by the poles whose lengths are controlled by multi-stages, and to display and visualize the structures in real time by a display device connected to an endoscope camera provided inside the poles Portability and convenience are improved.

1 is a schematic view showing an apparatus for measuring a crack width of a remote structure using an endoscope according to an embodiment of the present invention,
2 is a schematic diagram illustrating various embodiments of a circular crack scale scale mount according to an embodiment of the present invention,
3 is a front view showing a circular crack scale according to an embodiment of the present invention,
4 is a schematic view showing the installation of a distance measuring apparatus and a roller unit according to an embodiment of the present invention,
5 is an internal front view illustrating a distance measuring apparatus and a roller unit according to an embodiment of the present invention.

The present invention having such characteristics can be more clearly described by the preferred embodiments thereof.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Before describing in detail several embodiments of the present invention with reference to the accompanying drawings, it is to be understood that the present invention is not limited to the details of construction and the arrangement of components shown in the following detailed description or illustrated in the drawings will be. The invention may be embodied and carried out in other embodiments and carried out in various ways. It should also be noted that the device or element orientation (e.g., "front," "back," "up," "down," "top," "bottom, Expressions and predicates used herein for terms such as "left," " right, "" lateral, " and the like are used merely to simplify the description of the present invention, Or that the element has to have a particular orientation. Also, terms such as " first "and" second "are used herein for the purpose of the description and the appended claims, and are not intended to indicate or imply their relative importance or purpose.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, It should be understood that various equivalents and modifications may be present.

FIG. 1 is a schematic view showing an apparatus for measuring a crack width of a remote structure using an endoscope according to an embodiment of the present invention, FIG. 2 is a schematic view showing various embodiments of a circular crack scale scale mounting unit according to an embodiment of the present invention, FIG. 3 is a front view showing a circular crack scale according to an embodiment of the present invention, FIG. 4 is a schematic view showing the installation of a distance measuring apparatus and a roller unit according to an embodiment of the present invention, and FIG. Fig. 3 is an internal front view showing a distance measuring device and a roller portion according to an example.

1 to 5, an apparatus for measuring a crack width of a remote structure using an endoscope according to the present invention comprises a pole 10, an endoscope camera 20, a fixed socket 30, a circular crack scale ruler 40, and a circular crack scale 50.

1, a through hole (not shown) is formed in the inside of the pole 10, and the length of the pole 10 is adjusted by a plurality of steps. The plurality of poles 10 are inserted into the pole 10 in an overlapping manner, Adjustable. That is, the small-diameter pole 10 is inserted into the pole 10 having the largest diameter, and the small pole 10 is driven to one side to increase the length of the pole 10.

A fixing device 11 is provided at a position where the poles 10 are overlapped with each other so that the small-sized pole 10 is fixed while being driven by one side. The fixing device 11 is fixed to the outside The protector wound on the outer periphery of the pole is tightened by pressing a pin (not shown), and the pole 10 on the outer side is pressed and fixed by the pole 10 provided on the inside. Conversely, when the pin is released on the opposite side, The pressing force applied to the inner pole block 10 is released, and driving to one side / the other side is possible.

A holder device 60 is further formed on one side of the pole 10 so that a display device 90 connected to the endoscope camera 20 is connected to the holder device 60. The holder device 60 includes a pole- A body portion 61; A holder portion (62) directly fixed to the display device (90) by a fastening member; And a connection part 63 in which the gimbal 64 is formed to drive the display device 90 fixed to the holder part 62 while connecting the body part 61 and the holder part 62 to each other in multiple directions.

The body portion 61 may be fixed or loosened to the outer circumference of the pole 10 by a tightening member (not shown) in a state of being provided on the outer circumference of the pole 10, It is possible to attach and detach according to the desired position.

The holder 62 is formed in a "C" shape to be fitted to the outside of a display device 90 such as a smart phone and one side ("") As shown in Fig.

The gimbal of the connection part 63 is a rotatable support frame allowing rotation about the longitudinal axis so that the device or equipment can be placed horizontally and vertically regardless of the fluctuation of the structure floating on the water. , Since the holder 62 can rotate at a free radius, it is convenient to check the image of the display device 90.

Here, the display device 90 refers to a smart phone, a tablet PC, a notebook computer or the like.

The pole 10 is further provided with a shoulder device 12 for dispersing a load of a crack width measuring device for a remote structure using an endoscope.

In this embodiment, the shoulder strap device 12 includes a shoulder strap on the shoulder of the user to adjust the length thereof, and a fastening portion is formed on one side of the strap strap to bind the strap 10, The load of the crack width measuring device of the structure is supported and dispersed in the user's body.

In addition, the shoulder strap device 12 may be formed on one side of the pole 10 so as to protrude in the form of a letter "A" so as to be attached to the shoulder of the user, Is installed.

As shown in FIGS. 1 and 2, the endoscope camera 20 is an endoscope camera 20 inserted in an inner through-hole of a pole 10 to photograph a crack of a structure, and includes a lens unit for photographing a structure, A cable portion connected to the lens portion, and a port portion formed at an end of the wire cable portion and connected to a display device 90 such as a smart phone.

Here, the lens unit is an endoscope camera having an illumination unit for illuminating a structure. The endoscope camera is similar to a commonly used endoscope camera, and does not include a detailed description of internal structure and operation method.

1 and 2, the fixing socket 30 is formed on the lower side of the circular crack scale ruler 40. The fixing socket 30 is provided inside the circular crack scale ruler 40, (20) passing through the inside of the endoscope camera (40), and holes are formed through the endoscope camera (20).

The fixed socket 30 is formed of an elastic member such as rubber or sponge to elastically fix the endoscope camera 20 between the inner circumference of the hole and the endoscope camera 20. [

1 to 5, the circular crack scale unit 40 is formed on one end surface of the fixed socket 30 to protect the end portion of the endoscope camera 20 and is formed of a transparent material So that the endoscope camera 20 can capture a crack of the structure.

Here, the circular crack scale scale mounting base 40 is formed in a funnel shape or a cylindrical shape expanded outward from the fixed socket 30, and on one side of the circular crack scale scale mounting base 40 corresponding to the endoscope camera 20 As shown in (a) of FIG. 3, the circular crack scale 50 is adhered and contacted with the crack of the structure to measure the crack width.

As shown in FIG. 3 (b), when the circular crack scale 50 directly contacts the crack of the structure, one side of the circular crack scale scale mounting base 40 to which the circular crack scale 50 is attached is subjected to damage such as scratches The accuracy of the dimensional scale may be lowered, and the circular crack scale retention retaining ring 41 is coupled to the upper edge of the circular crack scale ruler mounting base 40.

In addition, the circular crack scale retainer ring 41 is formed in the shape of a ring, and a circular crack scale 50 is formed at the center. By the attachment / detachment of the circular crack scale retainer ring 41, the circular crack scale 50 is circular And is detachably attached to the crack scale mounting base 40. That is, a circular crack scale retainer ring 41 is formed on the outer circumference of the circular crack scale 50, a coupling groove (not shown) is formed on the lower end face of the circular crack scale retainer ring 41, And is fitted to the distal end of the mounting table 40. At this time, the circular crack scale retainer ring 41 is used as a rubber packing, a sponge member, or the like to prevent buffering action and breakage when the structure is contacted.

4 to 5, a distance measuring device 70 capable of measuring the length of cracks is installed on one surface of the circular crack scale scale mounting base 40 to which the circular crack scale 50 is attached The distance measuring device 70 includes a wheel portion 71 protruding outside the one side of the circular crack scale scale mounting base 40 and a wheel portion 71 connected to the rotational axis of the wheel portion 71, And a counter 72 for displaying the distance in numerical form.

The counter 72 is formed on the inside of the circular crack scale ruler 40 and can be confirmed as an image on the display device 90 through the endoscope camera 20. The wheel part 71 is mounted on the structure The length of the crack can be measured while the apparatus for measuring the crack width of the remote structure using the endoscope is moved by the length of the crack while directly contacting the endoscope and the circular crack scale scale mount 40 is not directly contacted with the structure, can do.

The distance measuring apparatus 70 is similar to a conventional working counter, and thus the structural coupling relation and the principle are not described separately. The distance measuring apparatus 70 includes a material of the circular crack scale unit 40 And is made lighter in accordance with the strength of the poles (10).

In another embodiment, as shown in FIGS. 4 to 5, on the one side of the circular crack scale ruler 40 to which the circular crack cracker 50 is attached, the circular crack scale ruler 40 does not directly contact the structure, A roller portion 80 is additionally formed so as to prevent the roller portion 80 and the like.

Here, the roller unit 80 is made to be light in weight in accordance with the material of the circular crack scale unit 40 and the strength of the pole unit 10.

As shown in FIGS. 1 to 5, the circular crack scale 50 is formed on one side of the circular crack scale scale mount 40, and when the endoscope camera 20 photographs the structure, the crack width dimension of the structure is measured .

The circular crack scale 50 has a plurality of dimensional scales 51 radially centered on a central portion thereof and is marked by the size of the crack width per one scale scale 51 so that the scale scale 51 ) Can be measured. That is, the dimension scale 51 is marked by the size (0.1 mm, 0.2 mm, .... 1.5 mm, 2.0 mm, 3.0 mm) width, and the size of the crack width Can be measured.

The circular crack scale 50 may be spaced apart from the endoscope camera 20 by an interval of 3 to 8 cm to measure the exact dimensions of the crack. In the present invention, the circular crack scale 50 and the endoscope camera 20 are spaced apart from each other by 5 cm.

10: pole 11: locking device
12: Shoulder strap
20: Endoscope camera 30: Fixed socket
40: circular crack scale ruler 41: circular crack cracking ring
50: circular crack scale 51: scale scale
60: holder device 61: body part
62: holder part 63: connection part
64: Gimbal
70: distance measuring device 71:
72:
80: roller portion 90: display device

Claims (3)

A pole 10 having a through hole formed therein, the pole 10 being adjustable in length;
An endoscope camera (20) inserted into an inner through hole of the pole (10) to photograph a crack of the structure;
A circular crack scale ruler 40 formed of a transparent material which is formed at one end of the pole 10 and formed in the form of a funnel expanding outward and which is projected to the outside so that the endoscope camera 20 can take a picture of the crack of the structure, Wow;
A fixing socket 30 formed at an end of the circular crack scale scale mount 40 and fixing the endoscope camera 20 passing through the inside thereof;
The endoscopic camera 20 is formed on one side of the circular crack scale ruler 40 corresponding to the endoscope camera 20. The endoscope camera 20 measures a crack width dimension of the structure when the structure camera 20 photographs the structure, And is marked by the size of the crack width per one dimension scale 51 so that the dimension scale 51 is brought into contact with the crack of the structure through the rotation and then taken by the endoscope camera 20 to measure A circular crack scale 50;
The circular crack crack scale 50 is coupled to the edge of the distal end of the circular crack scale ruler 40 to detach and attach the circular crack cracker 50 and to prevent the circular crack cracker scale 40 and the circular crack scale 50 from being made of an elastic material, (41);
A display device 90 connected to the endoscope camera 20 and capable of checking a crack width photographed by the endoscope camera 20;
And a holder device 60 installed at one end of the pole 10 and fixing the display device 90 connected to the endoscope camera 20,
The circular crack scale 50 may be spaced apart from the endoscope camera 20 by a distance of 3 to 8 cm to measure an accurate dimension of the crack,
The holder device (60) comprises: a body portion (61) to which the pole (10) is fitted;
A holder portion (62) directly fixed to the display device (90) by a fastening member;
A connection part 63 in which the gimbal 64 is formed to drive the display device 90 fixed to the holder part 62 while connecting the body part 61 and the holder part 62 to each other in multiple directions;
And a crack width measuring device for measuring the crack width of the remote structure using the endoscope.
The method according to claim 1,
In the pole 10, the load of the apparatus for measuring the crack width of the remote structure using the endoscope can be dispersed, and when the pole 10 is extended long, the shoulder- (12) is further formed on the distal end of the endoscope.
The method according to claim 1,
The distal end of the endoscope camera (20) is connected to a display device (90) of a smart phone, a tablet PC, or a notebook computer so that the size of the crack width of the structure can be visually confirmed. Crack width measurement device.

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