KR20210155242A - Non-destructive testing apparatus for concrete pole - Google Patents

Abstract

The present invention relates to a non-destructive testing apparatus for concrete poles, and more particularly, a guide rail is installed on a cylindrical pole and a sensing unit moves along the guide rail to conduct rebar exploration, so that entire inspection of the concrete pole is performed to ensure product reliability and economic loss caused by a destructive test can be reduced.

Description

Non-destructive testing equipment for concrete poles {NON-DESTRUCTIVE TESTING APPARATUS FOR CONCRETE POLE}

The present invention relates to non-destructive testing equipment for concrete poles, and more particularly, to non-destructive testing equipment for concrete poles suitable for exploring reinforcing bars in poles of a cylindrical structure.

Electric poles are pillars that support electric wires such as telephone lines and transmission lines. They are made of high-strength concrete or steel-containing materials to support electric wire structures. is composed

In particular, if the electric pole is damaged or damaged and needs to be replaced, the replacement operation takes a long time and inconvenience is added to the life of the user due to a power outage during the operation period. proceeds

In general, concrete poles produce uniform pole products through the precast method, which is a method of pouring and hardening concrete into a mold in a factory where a constant working environment is secured.

However, since the concrete itself is a mixture of Portland cement and sand, the rebar may not be perfectly placed in the correct position while it is poured into the mold of the concrete pole and hardened. Continuous inspection is required after installation.

Currently, radiographic inspection, ultrasonic inspection, magnetic non-destructive inspection, and penetration non-destructive inspection are used for non-destructive testing. have.

However, the reinforcing bar exploration equipment developed for rebar exploration is a method of measuring while moving in a plane, and there is a problem in that it is not suitable for a cylindrical pole structure.

In this regard, Korean Patent Registration No. 10-1140168 discloses a method of starting an inspection unit to detect the initial quality state of a concrete PC pole through non-destructive inspection at the production completion stage and allowing the pole to pass through and inspect it. However, it is difficult to apply in an external field.

Korean Patent No. 10-1140168 (2012.04.12)

The present invention was created to improve the problems of the prior art as described above, and an object of the present invention is to provide a non-destructive testing equipment for concrete poles that can be coupled to a pole so that rebar exploration can be performed on a cylindrical pole.

In order to achieve the object as described above, the non-destructive testing equipment for concrete poles according to the present invention includes: a linear plate-shaped rail unit coupled along the perimeter of a concrete pole containing reinforcing bars; a plate-shaped frame part that can be coupled to an upper end of the rail part so as to be linearly movable along the rail part; a driving unit having one side coupled to the lower end of the frame unit, and the other side being in contact with the upper surface of the rail unit so that the frame unit is movable along the rail unit; and a sensing unit coupled to the upper end of the frame unit to inspect the state of the concrete pole.

The sensing unit may use an underground detection radar to determine the state of the reinforcing bars or concrete included in the concrete pole.

The sensing unit may use an eddy current flaw detection method using a current induced in reinforcing bars included in the concrete pole.

The rail unit is coupled to the base spirally along the perimeter of the concrete pole; It may include; a rail member formed on the upper portion of the base.

The rail member includes a protrusion formed to protrude from the upper surface of the base; and a rail guide formed in a cylindrical shape by being coupled to the upper end of the protrusion.

The frame part includes a body frame having a flat plate shape supporting the sensing part; and a fixing clip of a circular shape with an open lower part provided at the lower end of the body frame so as to be coupled to the upper end of the rail guide.

The fixing clip may be formed to have an inner diameter equal to the diameter of the rail guide, and may be made of an elastic material of aluminum metal such that the distance between the lower ends is changed by an external force while the rail guide is inserted.

The driving unit includes a connecting shaft coupled to a lower end of the frame unit; a drive shaft connected to be perpendicular to the connection shaft and formed to be rotatable; a wheel connected to both ends of the driving shaft and formed to be rotatable in contact with the upper surface of the rail unit; a yoke coupled to the wheel; The end of the drive shaft is inserted into one shaft so that the wheel is rotatable, and the end of the yoke is inserted into the other shaft that intersects the one shaft; it may include a.

The connecting shaft may include a coupling ring formed at a lower end so that the driving shaft is vertically coupled therethrough.

The sensing unit may measure each rotation of the wheel to reduce power consumption in the process of linearly moving along the rail unit.

As described above, according to the non-destructive testing equipment for concrete poles according to the present invention, guide rails are installed on the cylindrical poles so that the cylindrical poles can be explored efficiently by transforming the non-destructive testing equipment suitable for the existing planar exploration. Since the sensing unit moves along the rail to conduct rebar exploration, it has the effect of improving product reliability and reducing economic loss due to destructive testing by performing a full inspection of the concrete pole.

1 is a perspective view showing a state in which a rail part of a non-destructive testing equipment for a concrete pole according to an embodiment of the present invention is combined along the circumference of a concrete pole.
Figure 2 is a perspective view showing a non-destructive testing equipment for concrete poles according to an embodiment of the present invention.
3 is an exploded perspective view showing a frame part and a driving part of the non-destructive testing equipment for concrete poles according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Since the present invention can have various changes and can have various embodiments, specific embodiments are illustrated in the drawings and described in detail in the detailed description. This is not intended to limit the present invention to specific embodiments, and should be construed to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

In describing the present invention, terms such as first, second, etc. may be used to describe various components, but the components may not be limited by the terms. The above terms are only for the purpose of distinguishing one component from another. For example, without departing from the scope of the present invention, a first component may be referred to as a second component, and similarly, a second component may also be referred to as a first component.

The term “and/or” may include a combination of a plurality of related listed items or any of a plurality of related listed items.

When a component is referred to as being “connected” or “connected” to another component, it may be directly connected or connected to the other component, but other components may exist in between. can be understood On the other hand, when an element is referred to as being “directly connected” or “directly connected” to another element, it may be understood that the other element does not exist in the middle.

The terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention. The singular expression may include the plural expression unless the context clearly dictates otherwise.

In the present application, terms such as “comprise” or “have” are intended to designate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, and one or more other features It may be understood that the existence or addition of numbers, steps, operations, components, parts, or combinations thereof is not precluded in advance.

Unless defined otherwise, all terms used herein, including technical or scientific terms, may have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in a commonly used dictionary may be interpreted as having a meaning consistent with the meaning in the context of the related art, and unless explicitly defined in the present application, it is interpreted in an ideal or excessively formal meaning. it may not be

In addition, the following embodiments are provided to more completely explain to those with average knowledge in the art, and the shapes and sizes of elements in the drawings may be exaggerated for more clear explanation.

2, the non-destructive testing equipment for concrete poles according to an embodiment of the present invention includes a linear plate-shaped rail unit 10 coupled along the circumference of a concrete pole containing reinforcing bars, the rail unit 10 A plate-shaped frame portion 20 that can be coupled to the upper end of the rail portion 10 so as to be linearly movable along the . A driving unit 30 formed such that one side is coupled to the lower end of the frame unit 20 and the other side is in contact with the upper surface of the rail unit 10 so that the frame unit 20 is movable along the rail unit 10 . ), is coupled to the upper end of the frame portion 20 includes a sensing unit 40 for inspecting the state of the concrete pole.

In detail, the rail unit 10 provides a movement path so that the reinforcing bar is coupled in an oblique shape along the circumference of the concrete pole included therein so that the sensing unit 40 can move while detecting the state of the concrete pole.

The sensing unit 40 detects the internal structure of the concrete pole by using the underground detection radar to determine the state of the reinforcing bars or concrete included in the concrete pole. can

In addition, the sensing unit 40 is configured to check the corrosion state or distribution state of the reinforcing bar by using the eddy current flaw detection method using the current induced in the reinforcing bar included in the concrete pole.

The rail unit 10 includes a base 11 helically coupled along the circumference of the concrete pole, and a rail member 12 formed on the base 11 .

The rail unit 10 may be configured not to be separated from the concrete electric pole during the sensing process by additionally provided with circular hooks or clamps at both ends so as to be coupled to both ends of the electric pole, for example, the inside is hollow It may be a metal clamp coupled to the wall of the concrete pole.

In addition, the rail unit 10 may be formed of a polymer material having elasticity so as to be extendable corresponding to the length of the electric pole, for example, may be formed using a siloxane polymer such as polydimethylsiloxane (PDMS).

The rail member 12 may include a protrusion 12a protruding from the upper surface of the base 11, and a rail guide 12b formed in a cylindrical shape by being coupled to the upper end of the protrusion 12a. One or a plurality of rail members may be formed to be stably coupled to the frame portion 20 , and when the plurality of rail members are formed, the possibility that the frame portion 20 is separated may be reduced.

The frame part 20 is a body frame 21 having a flat plate shape supporting the sensing part 40 . It is provided at the lower end of the body frame 21 so as to be coupled to the upper end of the rail guide 12b and includes a fixing clip 22 having an open lower portion.

The fixing clip 22 is formed so that the inner diameter is the same as that of the rail guide 12b, and is spread by an external force while the rail guide 12b is inserted. It may be formed of plastic.

The fixing clip 22 is lightweight and made of thin aluminum metal, so it has high durability and can be deformed in the course of being coupled to the rail guide 12b and inserted into the rail guide 12b.

The fixing clip 22 is spaced apart from the first clip 22a coupled to the lower end of the body frame 21 and the second clip 22b formed at the lower end of the body frame 21 . ) and is formed to correspond to the rail guide 22 .

Referring to FIG. 3 , the driving part 30 is a connecting shaft 33 coupled to the lower end of the frame part 20 . A drive shaft (31) vertically connected to the connection shaft (33) and formed to be rotatable. A wheel 32 connected to both ends of the drive shaft 31 and formed to be rotatable in contact with the upper surface of the rail unit 10, a yoke 34 coupled to the wheel 32, and the wheel 32 The end of the driving shaft 31 is inserted into one shaft so as to be rotatable, and the end of the yoke 34 includes a spider 35 inserted into the other shaft intersecting the one shaft.

In detail, the driving unit 30 is generally formed in a universal joint structure, and in the process of moving the frame unit 20 along the guide rail 12b, the direction of the wheel 32 is determined. Spiders 35 respectively connected to the drive shaft 31 and the yoke 34 are formed so as to be flexibly changed.

The connecting shaft 33 includes a first connecting shaft 33a connected to one lower surface of the frame part 20 and a second connecting shaft 33c connected to the other lower surface of the frame part 20 . Thus, the frame portion 20 is formed to move stably.

The driving shaft 31 may include a first driving shaft 31a connected to the first connection shaft 33a or a second driving shaft 31b connected to the second connection shaft 33c.

The connecting shaft 33 further includes a first coupling ring 33b or a second coupling ring 33d at the lower end so that the first driving shaft 31a or the second driving shaft 31b is vertically coupled thereto. Thus, the driving shaft 31 can be fixed so as not to be separated from the frame portion 20 while being rotatable.

The drive shaft 31 is connected to the middle of the longitudinal direction through the coupling rings 33b and 33d formed on the connection shaft 33, and both ends of the drive shaft have drive shaft coupling holes to be connected to the spider 35. is perforated

A first coupling ring 33c is provided at a lower end of the first connecting shaft 33a so that the first driving shaft 31a is penetrated and connected, and a lower end of the second connecting shaft 33c is provided with the second driving shaft ( A second coupling ring (33d) is provided so that 31b) is penetrated and connected.

The wheel 32 includes the first wheel 32a to the fourth wheel 32d and is formed to be capable of four-wheel drive.

A first wheel 32a and a second wheel 32b are connected to both ends of the first driving shaft 31a, and a third wheel 32c and a fourth wheel 32c are connected to both ends of the second driving shaft 31b ( 32d) is connected so as to maintain a balance while the frame part 20 moves.

The yoke 34 is formed in a hollow structure provided with a screw thread therein, and a wheel coupling part protruding from the wheel 32 at one end is inserted and coupled to the inside of the yoke, and the other end is coupled to the drive shaft 31 . A yoke coupling hole is perforated at the end so as to be vertically coupled with the yoke.

The yoke 34 may be configured to include a first yoke 34a to a fourth yoke 34d to be connected to the first wheel 32a to the fourth wheel 32d.

A first yoke 34a and a second yoke 34b are coupled to the first wheel 32a and the second wheel 32b, respectively, and are connected to both ends of the first driving shaft 31a.

In addition, a third yoke 34c and a fourth yoke 34d are coupled to the third wheel 32c and the fourth wheel 32d, respectively, and are connected to both ends of the second driving shaft 31b.

The spider 35 is connected to the drive shaft 31 and the yoke 34, respectively, and is formed to include a surface coating layer made of a high-strength material to prevent wear during friction.

The spider 35 may include a first spider 35a to a fourth spider 35d to correspond to the first yoke 34a to the fourth yoke 34d.

The first spider 35a and the second spider 35b connect both ends of the first driving shaft 32a to the first yoke 34a and the second yoke 34b, respectively.

The third spider 35c and the fourth spider 35d connect both ends of the second driving shaft 32b to the third yoke 34c and the fourth yoke 34d, respectively.

The sensing unit 40 may be formed to measure the rotation of the wheel 33 regularly or at intervals of 1 meter to reduce power consumption in the process of linear movement along the rail unit 10, and in addition The measuring time or distance interval may be variously modified.

Although the present invention has been described in detail through specific examples, it is intended to describe the present invention in detail, and the present invention is not limited thereto. It is clear that the transformation or improvement is possible by the person.

All simple modifications or changes of the present invention fall within the scope of the present invention, and the specific scope of protection of the present invention will be made clear by the appended claims.

10: rail part
11: base
12: rail member
12a: protrusion
12b: rail guide
20: frame part
21: body frame
22: fixing clip
22a: first clip
22b: second clip
30: drive unit
31: drive shaft
31a: first drive shaft
31b: second drive shaft
32 : wheel
32a: first wheel
32b: second wheel
32c: 3rd wheel
32d: 4th wheel
33: connecting shaft
33a: first connecting shaft
33b: first coupling ring
33c: second connecting shaft
33d: second coupling ring
34 : York
34a: first yoke
34b: second yoke
34c: 3rd yoke
34d: fourth yoke
35 : Spider
35a: first spider
35b: second spider
35c: 3rd Spider
35d: 4th Spider
40: sensing unit
100: concrete pole
110: reinforcing bar

Claims (10)

A rail portion in the form of a linear plate coupled along the perimeter of a concrete pole containing reinforcing bars;
a plate-shaped frame part that can be coupled to an upper end of the rail part so as to be linearly movable along the rail part;
a driving unit having one side coupled to the lower end of the frame unit, and the other side being in contact with the upper surface of the rail unit so that the frame unit is movable along the rail unit;
a sensing unit coupled to the upper end of the frame unit to inspect the state of the concrete pole;
Non-destructive testing equipment for concrete poles, including.
The method according to claim 1,
The sensing unit,
Non-destructive testing equipment for concrete poles that uses a ground detection radar to determine the state of reinforcing bars or concrete included in the concrete pole.
The method according to claim 1,
The sensing unit,
Non-destructive testing equipment for concrete poles using an eddy current flaw detection method using the current induced in the reinforcing bars included in the concrete pole.
The method according to claim 1,
The rail unit,
a base that is spirally coupled along the perimeter of the concrete pole;
a rail member formed on the base;
Non-destructive testing equipment for concrete poles, including.
5. The method according to claim 4,
The rail member,
a protrusion formed to protrude from the upper surface of the base;
a rail guide formed in a cylindrical shape by being coupled to the upper end of the protrusion;
Non-destructive testing equipment for concrete poles, including.
6. The method of claim 5,
The frame part,
a body frame in the shape of a flat plate for supporting the sensing unit;
a fixing clip of a circular shape with an open lower part provided at the lower end of the body frame so as to be coupled to the upper end of the rail guide;
Non-destructive testing equipment for concrete poles, including.
7. The method of claim 6,
The fixing clip is
Non-destructive testing equipment for concrete poles made of an elastic material such that the inner diameter is the same as the diameter of the rail guide, and the gap at the lower end is changed by an external force during the insertion of the rail guide.
The method according to claim 1,
The driving unit,
a connecting shaft coupled to the lower end of the frame part;
a driving shaft connected to the connection shaft and configured to be rotatable;
a wheel connected to both ends of the drive shaft and formed to be rotatable in contact with the upper surface of the rail unit;
a yoke coupled to the wheel;
a spider in which an end of the driving shaft is inserted into one shaft so that the wheel is rotatable, and an end of the yoke is inserted into the other shaft intersecting the one shaft;
Non-destructive testing equipment for concrete poles, including.
9. The method of claim 8,
The connecting shaft is
a coupling ring formed at the bottom so that the driving shaft penetrates vertically to be coupled;
Non-destructive testing equipment for concrete poles, including.
9. The method of claim 8,
The sensing unit,
Non-destructive testing equipment for concrete poles, characterized in that the measurement is performed every one cycle of rotation of the wheel to reduce power consumption in the process of linear movement along the rail part.

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