KR102546010B1 - Diagnostic equipment for rebar fracture of concrete pole - Google Patents

Abstract

The present invention relates to an apparatus for diagnosing a rebar fracture of a concrete pole. The apparatus includes: a hollow tube; a rebar diagnostic part measuring a rebar fracture part through a magnetic sensor by being exposed from an inner hollow part of a pole to an upper part of the hollow tube while kept inserted in the hollow tube; a weight having a first polygonal surface fixing a lower part of the rebar diagnostic part; a wire coupling part fixed to a lower part of the weight, and raised in the hollow tube by the winding/unwinding of the wire; a fixing pipe connected with the wire coupling part through a coil spring; and a bushing disposed in a lower part of the fixing pipe and fixing a guide tube guiding the wire fixed by the wire coupling part, wherein the fixing part is fixed to the interior of the hollow tube, the hollow tube is inserted into the inner hollow part of the pole with the rebar diagnostic part inserted therein to protect the rebar diagnostic part, the wire coupling part keeps the coil spring compressed by the pulling of the wire, and the rebar diagnostic part is exposed to the upper part of the hollow tube by the coil spring restored in shape by the unwinding of the wire, thereby diagnosing the rebar fracture condition of the pole. Therefore, the present invention is capable of preventing damage to a rebar diagnostic part and a magnetic sensor.

Description

Concrete pole rebar fracture diagnosis device {DIAGNOSTIC EQUIPMENT FOR REBAR FRACTURE OF CONCRETE POLE}

The present invention relates to a device for diagnosing a fracture of a reinforcing bar in a concrete electric pole, and more particularly, when the reinforcing bar diagnostic unit enters and exits the inner part of the electric pole, damage to the reinforcing bar diagnostic unit is prevented through an external hollow tube, and in addition, the hollow tube is placed in the inner part of the electric pole. enters, the rebar diagnosis part is exposed to the upper part of the hollow tube so that the fracture state of the rebar of the electric pole can be detected. The present invention relates to a device for diagnosing a fracture of a reinforcing bar in a concrete pole that can prevent a phenomenon in which a reinforcing bar diagnosis unit and a magnetic sensor are damaged when excessive force is applied in the process of expanding the unit.

Inside the concrete pole, reinforcing bars (tension bars) that apply prestress and reinforcing bars (reinforcement bars) that do not apply prestress are installed to support the load received by the poles.

In addition, when manufacturing poles, spiral bars having the function of binding reinforcing bars and restraining in the compression direction of concrete poles to reinforce are arranged.

Electric poles should generally be able to resist bending load, that is, moment, but if the reinforcing bars are cut, there is a risk of an accident in which the electric pole collapses because it cannot resist the bending load.

In recent years, about 3 to 4 concrete electric poles have suddenly collapsed, and the cause has been found to be that the reinforcing bars installed inside are fractured by the phenomenon of corrosion cracking due to aging and collapsing accordingly.

It usually occurs on the ground or underground, where the breaking moment of reinforcing bars acts the most.

In order to diagnose the steel wire breakage in the basement, a through-type diagnostic equipment is used. This method inserts the sensor in a straight-folded state into the scaffolding bolt hole, sends all of them down to the base, spreads the ribs of the sensor, and scans the inner part. A method of finding the location where the steel wire was broken was used.

The penetrating type diagnosis equipment inflates into a ball shape when the straight rib is pulled with a pull line, and scanning is possible because the sensor attached to the rib comes into contact with the concrete surface of the inner part.

However, when excessive force is applied in the process of inflating the ribs, the ribs often break, resulting in poor durability.

In addition, conventionally, there was a problem in that the ribs of the diagnostic equipment were damaged due to friction or impact when the diagnostic equipment entered the interior of the electric pole through the scaffolding bolt hole.

Republic of Korea Patent No. 10-1895205 Republic of Korea Patent No. 10-1693437

The present invention has been devised in view of the above problems, and the first object of the present invention is to prevent damage to the reinforcing bar diagnostic unit through an external hollow tube when the reinforcing bar diagnostic unit enters and exits the inner part of the electric pole, and in addition, When the hollow tube enters the inner part, it is to provide a concrete electric pole reinforcing bar fracture diagnosis device capable of detecting the fracture state of the reinforcing bar of the electric pole by exposing the reinforcing bar diagnostic unit to the upper part of the hollow tube.

The second object of the present invention is, on the other hand, when expanding the reinforcing bar diagnostic unit in an elliptical shape, it is expanded by the constant tension of the coil spring, so that when force is excessively applied in the process of extending the existing reinforcing bar diagnostic unit, the reinforcing bar diagnostic unit and magnetic sensor It is to provide a concrete electric pole reinforcement bar fracture diagnosis device that can prevent damage.

According to a feature for achieving the above object, the first invention relates to a concrete electric pole reinforcing bar fracture diagnosis device, for which a hollow tube; A reinforcing bar diagnostic unit that is exposed to the upper part of the tube and measures the fractured portion of the reinforcing bar by a magnetic sensor; and a weight having a first polygonal surface for fixing the lower part of the reinforcing bar diagnostic unit; and fixed to the lower part of the weight, A wire binding part that is elevated inside the hollow tube by pulling and unwinding the wire; and a fixed tube connected to the wire binding part through a coil spring; And a bushing disposed below the fixing pipe and fixing a guide tube for guiding the wire fixed to the wire coupling part; including, but the fixing pipe is fixed to the inside of the hollow tube, and the hollow tube is inserted into the reinforcing bar diagnostic unit. The furnace enters the inner part of the electric pole to protect the reinforcing bar diagnostic unit, the wire binding unit maintains the coil spring in a compressed state by pulling the wire, and the reinforcing bar diagnostic unit is attached to the coil spring whose shape is restored by loosening the wire. It is characterized by diagnosing the fracture state of the rebar of the electric pole by being exposed to the upper part of the hollow tube by the

In the second invention, in the first invention, the reinforcing bar diagnostic unit is fixed to the inner surface of a plurality of ribs that expand in an elliptical shape by shape restoration when exposed to the upper part of the hollow tube, and the region of the largest expansion radius of each rib It is characterized in that a magnetic sensor is configured.

In the third invention, in the second invention, the upper part of the reinforcing bar diagnosis part is coupled to the head part, and the head part is coupled with a head body to which a roller part is hinged, and each rib is coupled to the lower part of the head body It is characterized in that it is composed of the second binding portion of the polygonal body to be.

In the fourth invention, in the third invention, the roller part is exposed to the upper part of the hollow tube so that the roller in contact with the inner surface of the electric pole can be rolled when the hollow tube enters through the foot hole of the electric pole, and the head body An elastic coil is coupled between the and the roller unit to restore the position of the roller unit that rotates around the hinge axis.

In the fifth invention, in the first invention, the reinforcing bar diagnostic unit is fixed at the end of each of the ribs so that it can be in close contact with the inner hole surface of the electric pole and a plurality of ribs that radially expand by shape restoration when exposed to the upper part of the hollow tube. It is characterized in that it consists of a contact surface portion formed inclined at an angle, and a magnetic sensor fixed to the inner surface of each contact surface portion to diagnose the breakage of the reinforcing bar of the electric pole.

According to the concrete electric pole reinforcing bar fracture diagnosis device of the present invention, when the reinforcing bar diagnostic unit enters and exits the interior of the electric pole, damage to the reinforcing bar diagnostic unit is prevented through the external hollow tube, thereby prolonging the life of the product.

In addition, when the hollow tube enters the inner part of the electric pole, there is an effect of detecting the broken state of the reinforcing bar of the electric pole by exposing the reinforcing bar diagnosis part to the upper part of the hollow tube.

In addition, when the reinforcing bar diagnostic unit is expanded in an elliptical shape, it is expanded by the constant tension of the coil spring, so that the reinforcing bar diagnostic unit and magnetic sensor are damaged when excessive force is applied in the process of expanding the existing reinforcing bar diagnostic unit. It works.

1 and 2 are perspective views of a concrete electric pole reinforcement fracture diagnosis device according to a first embodiment of the present invention;
3 is a configuration diagram showing a state in which the roller of the roller unit shown in FIG. 1 is in contact with the inner hole surface of the electric pole;
4 and 5 are operation diagrams of the concrete electric pole reinforcement fracture diagnosis device according to the first embodiment of the present invention;
6 and 7 are perspective views showing an apparatus for diagnosing a fracture of a concrete electric pole rebar according to a second embodiment of the present invention.

Objects, other objects, features and advantages of the present invention below will be easily understood through the following preferred embodiments in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments described herein and may be embodied in other forms.

Rather, the embodiments introduced herein are provided so that the disclosed content will be thorough and complete and the spirit of the present invention will be sufficiently conveyed to those skilled in the art.

Embodiments described and illustrated herein also include complementary embodiments thereof.

In this specification, singular forms also include plural forms unless specifically stated otherwise in a phrase. The terms 'comprise' and/or 'comprising' used in the specification do not exclude the presence or addition of one or more other elements.

Hereinafter, the present invention will be described in detail with reference to the drawings. In describing the specific embodiments below, various specific details have been prepared to more specifically describe the invention and aid understanding. However, readers who have knowledge in this field to the extent that they can understand the present invention can recognize that it can be used without these various specific details. In some cases, it is mentioned in advance that parts that are commonly known in describing the invention and are not greatly related to the invention are not described in order to prevent confusion in describing the present invention.

Hereinafter, a concrete electric pole reinforcement fracture diagnosis apparatus according to the present invention will be described in detail together with the accompanying drawings.

[First Embodiment]

1 and 2 are perspective views of a concrete electric pole reinforcing bar fracture diagnosis device according to a first embodiment of the present invention, and FIG. 3 is a configuration diagram showing a state in which the roller of the roller unit shown in FIG. 1 is in contact with the inner hole surface of the electric pole. , 4 and 5 are operational diagrams of the concrete electric pole reinforcement fracture diagnosis device according to the first embodiment of the present invention.

As shown in FIGS. 1 to 5, the first embodiment prevents damage to the reinforcing bar diagnostic unit through the external hollow tube when the reinforcing bar diagnostic unit enters and exits the inner part of the electric pole, and in addition, the hollow tube is inserted into the inner part of the electric pole. When entering, it relates to a concrete electric pole reinforcing bar fracture diagnosis device capable of detecting the fracture state of the reinforcing bars of the electric pole by exposing the reinforcing bar diagnosis part to the upper part of the hollow tube.

The concrete electric pole reinforcing bar fracture diagnosis device 100 of the first embodiment is largely composed of five parts, which are a hollow tube 10, a reinforcing bar diagnosis unit 20, a wire binding unit 40, and a wire fixing tube 60 ) and a bushing 70.

The hollow tube 10 and the guide tube 71 to be described later are composed of flexible flexible tubes made of synthetic resin and metal so that they can be flexibly bent when entering and exiting the inner part 210 of the concrete electric pole 200.

The hollow tube 10 functions to protect the reinforcing bar diagnosis unit 20 by entering the inner part 210 of the pole with the reinforcing bar diagnosis unit 20 inserted therein.

In addition, the hollow tube 10 is in a state in which the reinforcing bar diagnosis unit 20, the wire binding unit 40, the wire fixing tube 60 and the bushing 70 are sequentially inserted, through which the scaffolding of the electric pole 200 It can function so that it can be easily entered and exited by perforating the hole 220 .

The reinforcing bar diagnosis unit 20 is exposed to the upper part of the hollow tube 10 from the inside of the electric pole in the state of being inserted into the hollow tube 10, and measures the broken part of the reinforcing bar by the magnetic sensor 22. do

The reinforcing bar diagnostic unit 20 has a plurality of ribs 21 that expand into an elliptical shape (rugby ball shape) by shape restoration when exposed to the upper part of the hollow tube 10, and an expansion radius of each rib 21 It consists of a magnetic sensor 22 fixed to the inner surface of the largest area.

Here, the rib 21 may be made of any one of spring steel, stainless steel, or polycrbonate so as to have elastic restoring force and be bendable.

In addition, as shown in FIG. 5 , when the rib 21 is expanded into an elliptical shape, an area having the largest expansion radius contacts the inner hole surface of the electric pole 200 .

At this time, since the magnetic sensor 22 is fixed to the inner surface of the area where the expansion radius of each rib 21 is the largest, a structure that can be approached to the inner hole surface of the electric pole 200 can be provided.

The magnetic sensor 22 approaching the inner hole surface of the pole 200 in this way functions to simultaneously detect the magnetic field from the plurality of reinforcing bars 250 buried in the pole 200 to diagnose the fractured part of the reinforcing bar.

The weight 30 fixes the lower part of the reinforcing bar diagnosis unit 20 to hold the center of gravity, and has a first polygonal surface portion 31 coupled to the rib 21 of the reinforcing bar diagnosis unit 20. It is a structure.

And the upper part of the reinforcing bar diagnosis unit 20 is coupled to the head unit 80, and the head unit 80 has a head body 82 to which the roller unit 81 to which the roller 811 is coupled is hinged, It is composed of a second polygonal face portion 821 of a polygonal body extending to the lower portion of the head body 82 and to which each rib 21 is coupled.

As shown in FIG. 3, the roller unit 81 is the roller 811 in contact with the inner surface of the electric pole 200 can be rolled when the hollow tube 10 enters through the scaffolding hole 220 of the electric pole 200. It is exposed to the top of the hollow tube (10).

At this time, an elastic coil 83 is coupled between the head body 82 and the roller unit 81 so as to restore the position of the roller unit 81 rotated around the hinge axis.

In addition, the wire coupling part 40 has a structure in which the upper portion of the wire W is fixed to the inner center, and is moved up and down in the hollow tube 10 by pulling and unwinding the wire W.

At this time, the upper part of the wire binding part 40 is fixed to the lower part of the weight 30, and the reinforcing bar diagnosis part 20 is moved together with the weight 30, so that the reinforcing bar diagnosis part 20 is the hollow tube 10 ) to be exposed to the top or to be drawn into the interior.

The fixing pipe 60 has a structure in which the wire coupling part 40 and the coil spring 50 are connected to each other.

The fixed tube 60 has a structure fixed to the hollow tube 10, and may be fixed to the hollow tube 10 through bolting or adhesive.

Therefore, a structure in which the coil spring 50 can be compressed or restored around the fixed tube 60 can be provided.

Accordingly, the wire binding unit 40 maintains the coil spring 50 in a compressed state by pulling the wire W, and the reinforcing bar diagnosis unit 20 is a weight fixed to the wire binding unit 40. By the descent of (30), it becomes a state inserted into the hollow tube (10).

Conversely, the reinforcing bar diagnosis unit 20 is exposed to the upper part of the hollow tube 10 when the coil spring 50 is restored in shape by the unwinding of the wire W, and at the same time expanded in an elliptical shape, so that the magnetic sensor 22 is electric pole ( 200) is close to the inner hole surface.

In addition, the bushing 70 is disposed below the fixing tube 60 and serves to fix the guide tube 71 for guiding the wire W connected to the wire coupling part 40 .

Here, the wire (W) may be configured by being connected to a separate wire control lever (not shown) via the fixing tube 60 and the guide tube 71.

And the wire control lever (not shown) controls the pulling operation and the unwinding operation of the wire.

Hereinafter, the operation of the concrete pole reinforcement fracture diagnosis device according to the first embodiment will be briefly described.

First, the reinforcing bar diagnostic unit 20 is inserted into the hollow tube 10 by the pulling operation of the wire W.

At this time, as shown in FIG. 1, the roller part 81 of the head part 80 coupled to the upper part of the reinforcing bar diagnosis part 20 is exposed to the hollow tube 10.

In this state, the hollow tube 10 is inserted into the perforation hole 230 drilled through the scaffolding hole 220 of the electric pole 200.

Then, as shown in FIG. 3, when the hollow tube 10 is inserted into the perforated hole 230, the roller 811 of the roller unit 81 exposed to the hollow tube 10 rolls along the inner surface of the electric pole 200. bends downwards.

Thereafter, when the unwinding operation is performed on the pulled wire W, as shown in FIG. 2 , the binding force of the wire coupling part 40 disappears and the compressed coil spring 50 is restored, and the wire coupling portion 40 and the weight 30 ) will increase.

Then, the reinforcing bar diagnosis unit 20 is exposed to the upper part of the hollow tube 10 by the lifting operation of the weight 30, and the rib 21 of the exposed reinforcing bar diagnosis unit 20 is the weight of the weight 30 It expands into an elliptical shape by the rising force and the shape restoration of the ribs 21.

As shown in FIG. 5, since the outer surface of the area having the largest expansion radius is in contact with the inner surface of the pole 200, the rib 21 expanded in an elliptical shape from the inner portion 210 of the pole 200. ) The magnetic sensor 22 fixed to the inner surface of the electric pole becomes close to the inner hole surface.

Then, the magnetic sensor 22 measures the magnetic field, which is a current generated from the rebar 250 magnetized by electromagnetic induction, to diagnose the fracture state of the rebar 250 embedded in the pole 200.

Thereafter, when the hollow tube 10 is pulled, the rib 21 is moved in a state of being in contact with the inner hole surface of the electric pole, and the magnetic field generated from each reinforcing bar 250 is transmitted through the magnetic sensor 22 in the longitudinal direction of the reinforcing bar 250. can be detected accordingly.

As such, the first embodiment increases the lifespan by preventing damage to the reinforcing bar diagnosis unit 20 through the external hollow tube 10 when the reinforcing bar diagnosis unit 20 moves in and out of the inner part 210 of the electric pole 200. Also, when the hollow tube 10 enters the inner part of the electric pole 200, the reinforcing bar diagnostic unit 20 is exposed to the upper part of the hollow tube 10.

[Second Embodiment]

6 and 7 are perspective views showing an apparatus for diagnosing a fracture of a concrete electric pole rebar according to a second embodiment of the present invention.

Unlike the first embodiment, the reinforcing bar diagnostic unit 20 of the second embodiment may be composed of a plurality of ribs 21 that are radially expanded by shape restoration when exposed to the top of the hollow tube 10.

At this time, each of the ribs 21 has a structure extending radially around the first polygonal surface portion 31, and the contact surface portion 211 inclined at a certain angle so as to be in close contact with the inner hole surface of the electric pole 200 is a structure with

In addition, a magnetic sensor 22 is fixed to the inner surface of each contact surface portion 211 so that a plurality of reinforcing bars 250 embedded in the electric pole 200 can be diagnosed.

Since the embodiments described in this specification and the configurations shown in the drawings are only one of the most preferred embodiments of the present invention and do not represent all of the technical spirit of the present invention, various equivalents that can replace them at the time of this application It should be understood that there may be variations and examples.

10: hollow tube
20: rebar diagnosis unit 21: rib 211: contact surface
22: magnetic sensor
30: weight 31: first polygon surface
40: wire binding part
50: coil spring
60: fixed tube
70: bushing 71: guide tube
80: head part 81: roller part 811: roller
82: head body 821: second polygon surface portion
83: elastic coil
W: wire
100: Concrete pole rebar fracture diagnosis device
200: Jeonju 210: Interior 220: Scaffolding Hall
230: drilled hole 250: reinforcing bar

Claims (5)

hollow tube (10);
Reinforcing bar diagnostic unit that is exposed to the upper part of the hollow tube 10 from the inner part 210 of the electric pole 200 in a state inserted into the hollow tube 10 and measures the broken part of the reinforcing bar by the magnetic sensor 22 (20);
a weight (30) having a first polygonal surface (31) fixing a lower portion of the reinforcing bar diagnostic unit (20);
A wire binding unit 40 fixed to the lower portion of the weight 30 and lifted from the inside of the hollow tube 10 by pulling and unwinding the wire;
a fixing pipe 60 connected to the wire coupling part 40 and the coil spring 50 as a medium; and
A bushing (70) for fixing a guide tube (71) for guiding a wire (W) fixed to the wire coupling part (40) and disposed below the fixing tube (60);
The fixed tube 60 is fixed inside the hollow tube 10,
The hollow tube 10 enters the inner part 210 of the pole with the reinforcing bar diagnosis unit 20 inserted and can protect the reinforcing bar diagnosis unit 20,
The wire coupling part 40 maintains the coil spring 50 in a compressed state by pulling the wire W,
The reinforcing bar diagnosis unit 20 is exposed to the upper part of the hollow tube 10 by the coil spring 50, which is shape-restored by the loosening of the wire W, thereby diagnosing the broken state of the reinforcing bar of the electric pole 200. Concrete electric pole rebar fracture diagnosis device.
According to claim 1,
The rebar diagnosis unit 20
A plurality of ribs 21 that expand in an elliptical shape by shape restoration when exposed to the upper part of the hollow tube 10;
Concrete pole reinforcement fracture diagnosis device, characterized in that the magnetic sensor (22) is fixed to the inner surface of the region of the largest expansion radius of each rib (21).
According to claim 2,
The upper part of the reinforcing bar diagnosis part 20 is coupled to the head part 80,
The head part 80 includes a head body 82 to which a roller part 81 to which a roller 811 is coupled is hinged,
Concrete pole reinforcement fracture diagnosis device, characterized in that composed of a second polygonal face portion 821 of the polygonal body extending to the lower portion of the head body 82 and to which each rib 21 is coupled.
According to claim 3,
The roller unit 81 is the hollow tube 10 so that the roller 811 in contact with the inner surface of the electric pole 200 can be rolled when the hollow tube 10 enters through the scaffolding hole 220 of the electric pole exposed to the upper part of
An elastic coil 83 is coupled between the head body 82 and the roller part 81 to restore the position of the roller part 81 rotated around the hinge axis.
According to claim 1,
The rebar diagnosis unit 20
A plurality of ribs 21 radially expanding by shape restoration when exposed to the upper part of the hollow tube 10;
A contact surface portion 211 inclined at a predetermined angle at the end of each rib 21 so as to be in close contact with the inner hole surface of the electric pole 200;
Concrete electric pole reinforcement fracture diagnosis device, characterized in that consisting of a magnetic sensor (22) fixed to the inner surface of each contact surface portion (211) to diagnose the fracture of the reinforcement of the electric pole (200).

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