KR102686926B1 - Pipeline search device using push method - Google Patents

Abstract

The present invention includes a rotating drum on which a push cable is wound and rotated in one direction or the other by a motor; a guide part that guides the push cable released from the rotating drum and maintains the push cable's straightness; and a traveling body connected to the longitudinal end of the push cable via the guide portion and capable of traveling within the pipe under pressure from the push cable.

Description

Pipe line search device using push method {PIPELINE SEARCH DEVICE USING PUSH METHOD}

The present invention relates to a pipe search device using a push method, and in detail, a push device configured to inspect the inside of a pipe by inserting it into a pipe placed in a narrow place, a pipe placed in a place where it is difficult for vehicles to enter, and a sewage drain. This relates to a pipeline search device using a method.

In general, various water and sewage pipes buried underground become deteriorated over time and fail to perform their functions. For example, corrosion or cracks may occur in pipes, contaminating drinking water, soil, or groundwater, or causing water or sewage to not flow smoothly.

Therefore, it can be said that it is very important to continuously manage and repair various pipes buried underground, and currently, the status of the pipes is identified using a pipe search device that is inserted into the inside of the pipe and runs.

In general, a pipeline search device may be largely configured to include a traveling body that travels using wheels and a control unit that controls the traveling body.

The control unit is composed of various devices such as a traction device for towing the moving body inserted into the pipeline, a monitoring device that analyzes the interior of the pipeline taken from the moving body in real time, and a power supply device that supplies power to the traveling body. Overall, it is bulky and heavy. Therefore, the control unit is transported while mounted on a truck or truck.

Existing pipe search devices have difficulty in searching pipes placed in places where vehicles have difficulty entering, such as alleys or mountain villages, because the control unit must be transported using a vehicle.

In order to cope with the above problems, a small and lightweight portable traveling vehicle was used, but not only was the traveling ability significantly reduced, but the entire section of the pipe could not be fully surveyed due to the sludge deposited at the bottom of the pipe, and only the beginning of the pipe could be investigated. There is a problem.

In addition, in the case of a sewage drain, a small traveling body must be used because the inlet part is narrow. However, as mentioned above, in the case of a small traveling body, there is a problem in that it is difficult to run due to sediment accumulated on the floor.

Accordingly, the present applicant proposed the present invention to solve the above problems, and related prior art documents include Korean Patent No. 10-2244501 titled 'Guide equipment and manhole internal condition investigation device equipped with the same' There is.

The present invention is intended to solve the above problems. By providing a configuration in which the moving body inserted into the pipe can travel by winding or unwinding the push cable, the overall size of the device is simplified and placed in a place where vehicles are difficult to enter. The purpose is to provide a pipeline search device configured to easily inspect pipelines.

The present invention includes a rotating drum on which a push cable is wound and rotated in one direction or the other by a motor; a guide part that guides the push cable released from the rotating drum and maintains the push cable's straightness; and a traveling body connected to the longitudinal end of the push cable via the guide unit and capable of traveling within the pipe by winding or unwinding the push cable.

Additionally, the push cable is made of either a high-strength fiber material or a rubber material, and can form a space inside where a power line can be embedded.

Additionally, the guide unit may press the push cable released from the rotating drum in the direction in which the traveling body is disposed.

In addition, the guide unit includes: a guide frame disposed inside the pipe and forming a space through which the push cable can pass; and a pressing member rotatably mounted on the guide frame and in contact with an outer surface of the push cable.

Additionally, the pressing member may include either the pressing roller or the rotating gear.

Additionally, a sawtooth groove that engages the pressing member may be formed on the outer surface of the push cable along the longitudinal direction of the push cable.

In addition, the rotating drum may be rotated while inserted into the pipe through a manhole, and may further include a support portion disposed on an upper portion of the manhole to rotatably support the rotating drum.

The pipeline search device using the push method according to the present invention provides a configuration that can drive by inserting a moving body into the inside of a pipeline or sewage tank placed in a place where vehicles have difficulty entering, so it can search for pipelines even in areas where vehicles cannot enter. Makes it easy to identify abnormalities in pipes.

In addition, the pipeline search device using the push method according to the present invention provides a configuration in which the traveling body travels forward by the pressing force of the push cable, so that the traveling body can travel by overcoming obstacles or sediments present on the bottom surface of the pipeline. make it possible

1 is a diagram showing the configuration of a pipeline search device using a push method according to an embodiment of the present invention.
Figure 2 is a plan view showing the configuration of a guide portion according to an embodiment of the present invention.
Figure 3 is a cross-sectional view showing the configuration of a push cable according to an embodiment of the present invention.
Figure 4 is a diagram showing a state in which the pipeline search device according to an embodiment of the present invention is applied to a sewage drain.

The advantages and features of the present invention and methods for achieving them will become clear by referring to the embodiments described in detail below along with the accompanying drawings.

However, the present invention is not limited to the embodiments disclosed below and will be implemented in various different forms. The present embodiments only serve to ensure that the disclosure of the present invention is complete and are within the scope of common knowledge in the technical field to which the present invention pertains. It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims.

Hereinafter, a pipeline search device using a push method according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 4. In describing the present invention, detailed descriptions of related well-known functions or configurations are omitted in order to make the gist of the invention unambiguous.

Figure 1 is a diagram showing the configuration of a pipeline search device using a push method according to an embodiment of the present invention, Figure 2 is a plan view showing the configuration of a guide portion according to an embodiment of the present invention, and Figure 3 is a diagram showing the configuration of a guide portion according to an embodiment of the present invention. It is a cross-sectional view showing the configuration of a push cable according to an embodiment, and Figure 4 is a diagram showing a state in which the pipe search device according to an embodiment of the present invention is applied to a sewage drain.

As shown in FIG. 1, the pipeline search device 100 using the push method according to an embodiment of the present invention includes a rotating drum on which a push cable 10 is wound and rotated in one direction or the other by a drive motor. (110); A guide part 130 that guides the push cable 10 released from the rotating drum 110 and maintains the straightness of the push cable 10; And a traveling body 150 connected to the longitudinal end of the push cable 10 via the guide portion 130 and capable of traveling within the pipe by winding or unwinding the push cable 10. You can.

As described above, the rotary drum 110 is configured to be rotated in one direction or the other direction by a drive motor, and a push cable 10 for driving the traveling body 150 can be wound around it.

For reference, the drive motor that rotates the rotary drum 110 may be provided with a known encoder. Therefore, the length or speed of the push cable 10 unwound from the rotating drum 110 can be calculated based on the rotational speed of the driving motor detected by the encoder. In other words, the information sensed by the encoder can be transmitted to the control unit 200 located outside the pipe, and the control unit 200 can control the drive motor connected to the rotating drum 110 based on the transmitted sensing information. there is.

When the drive shaft of the drive motor rotates in one direction, the push cable 10 wound around the rotary drum 110 may be released from the rotary drum 110. Conversely, when the drive shaft of the drive motor rotates in the other direction, the push cable 10 released from the rotary drum 110 may be wound around the rotary drum 110.

As shown in FIG. 3, the push cable 10 has a predetermined thickness, and a space in which power and communication cables can be installed is formed inside.

The push cable 10 includes an outer sheath 11 made of either a high-strength fiber material or a rubber material, an inner sheath 12 disposed inside the outer sheath 11 to maintain straightness, and an inner sheath 12 disposed inside the inner sheath 12. It may include a center line 13 of a metal material and a power line 14 disposed around the center line 13.

The push cable 10 configured as described above supplies power to various electronic components constituting the traveling body 150 and simultaneously pushes or pulls the traveling body 150 to make the traveling body 150 travel on the pipe.

Since the push cable 10 must provide force to press the traveling body 150 forward while being flexible, it is desirable to have the ability to run straight.

Accordingly, the outer sheath 10 of the push cable 10 may be made of polymer fiber such as polyester, and the inner sheath 11 may be made of Kevlar fiber.

Meanwhile, a center line 13 made of metal may be disposed in the inner space formed by the push cable 10 to maintain the straightness of the push cable 10. The metal center line 13 may be an aluminum or copper wire.

Additionally, the power line 14 may be arranged around the center line 13 of a metal material, and as described above, may supply power to various electronic components mounted on the traveling body 150. In addition, the power line 14 may be configured to include a communication line.

The guide unit 130 is a component introduced into the pipe, and may be disposed between the rotating drum 110 and the traveling body 150.

The guide unit 130 serves to press the push cable 10 released from the rotating drum 110 in the direction in which the traveling body 150 is disposed and at the same time maintain the straightness of the push cable 10. .

As shown in FIG. 2, the guide unit 130 includes a guide frame 131 that is disposed inside the pipe and forms a space through which the push cable 10 can pass; and a pressing member 133 rotatably mounted on the guide frame 131 and in contact with the outer surface of the push cable 10.

The guide frame 131 may be provided as a pair and may include wheels to be stably placed on the bottom surface of the pipe.

A pair of guide frames 131 are arranged to be spaced apart from each other to form a space through which the push cable 10 can pass.

The pressing member 133 prevents the push cable 10 disposed between the pair of guide frames 131 from flowing upward or downward, maintaining the straightness of the push cable 10 and at the same time allowing the traveling body 150 to move. It serves to push the push cable (10) in the direction in which it is placed or to pull the push cable (10) in the direction in which the rotating drum (10) is placed.

The pressing member 133 may have its longitudinal end rotatably mounted on the guide frame 131. That is, the pressing member 133 may be selected and configured as either a pressing roller or a rotating gear, and the longitudinal end of the rotating shaft that rotates the pressing roller or rotating gear may be rotatably mounted on the guide frame 131. You can. The rotation shaft constituting the pressing member 133 may receive power from a drive motor (not shown) and rotate in one direction or the other direction.

For reference, a known encoder may also be provided in the driving motor for rotating the pressing member 133. Therefore, the length or speed of the push cable 10 passing through the guide unit 130 can be calculated based on the rotation speed of the drive motor detected by the encoder. Information sensed by the encoder can also be transmitted to the control unit 200 located outside the pipe, and the control unit 200 can control the driving motor connected to the pressing member 133 based on the transmitted sensing information. .

The pressing member 133 configured as described above may be arranged in plural numbers along the longitudinal and height directions of the guide frame 131, and the push cable 10 released from the rotating drum 110 moves in the upward/downward direction. It can be moved in the space arranged between the pair of guide frames 131 while being drawn in between the pressing members 133 arranged as.

Meanwhile, on the outer surface of the outer shell 11 constituting the push cable 10, as shown in FIG. 3, a serrated groove 11a is formed on the push cable 10 to increase friction between the pressing members 133. It can be formed along the longitudinal direction of . Additionally, a protrusion or gear that can engage with the tooth-shaped groove 11a may be provided on the outer surface of the pressing member 133.

Therefore, by rotating the pressing member 133 in one direction or the other direction, the push cable 10 can be smoothly moved in the direction in which the traveling body 150 is disposed or in the direction in which the rotating drum 110 is disposed. You can.

The traveling body 150 is configured to be able to travel on the bottom surface of the pipe, and may be equipped with a known camera module so that the user can visually check the inside of the pipe.

In addition, the traveling body 150 may be provided with a drive motor for rotating a wheel in contact with the bottom surface of the pipe, and this drive motor receives power from the power line 14 built into the push cable 10. It can work.

An encoder is also provided on the drive motor for driving the drive wheel of the traveling body 150, and the rotary drum 110 and the guide unit 130 are sequentially moved based on the rotation speed of the drive motor detected by the encoder. The length or speed of the push cable 10 passing through can be calculated. Information sensed by the encoder is also transmitted to the control unit 200 disposed outside the pipe, and the control unit 200 can control the drive motor provided in the traveling body 150 based on the transmitted sensing information.

That is, the control unit 200 includes a drive motor for rotating the rotating drum 110, a drive motor for rotating the pressing member 133 of the guide unit 130, and a drive wheel for rotating the traveling body 150. Sensing information is received from the encoder provided on each drive motor to determine the unwinding or winding speed of the push cable 10, and in response to this, the rotating drum 110, the guide part 130, and the traveling body 150 are operated. You can control it.

For reference, the traveling body 150 can be driven by being remotely controlled by the user, but if an obstacle exists on the bottom of the pipe, the output of the drive motor provided in the traveling body 150 cannot overcome the obstacle. This occurs. In this case, the drive motor provided in the rotating drum 110 and the drive motor provided in the guide unit 130 are controlled to increase the withdrawal speed of the push cable 10 connected to the traveling body 150. A force that pushes (150) forward can be generated. Then, the traveling body 150 can easily travel over obstacles or sediments present on the bottom surface of the pipe.

As another example, the user drives the traveling body 150 forward only by the pressing force of the push cable 10 released from the rotating drum 110, and only when changing direction does the driving provided in the traveling body 150 The motor can also be operated.

Meanwhile, the connecting means 170 that connects the push cable 10 and the traveling body 150 is implemented as a known tilting member that can actively adjust the angle when changing the direction of the traveling body 150. It can be. Accordingly, the direction of the push cable 10 may also be changed as the connecting means 170 adjusts the angle in response to a change in direction of the traveling body 150.

As shown in FIG. 1, the pipeline search device 100 using the push method configured as described above can be placed inside the pipeline by inserting the rotating drum 110 into a manhole. At this time, the rotating drum 110 may be supported on the tow line of the support part 190 disposed outside the manhole.

As another example, as shown in FIG. 4, when exploring the inside of a sewage drain located at the left and right ends of the road, it is difficult to insert the rotary drum 110 into the sewage drain inlet, so the rotary drum 110 can also be rotatably placed on one side of the sidewalk.

Although specific embodiments according to the present invention have been described so far, it goes without saying that various modifications are possible without departing from the scope of the present invention.

Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined by the scope of the patent claims described below as well as equivalents to the claims of this patent.

100: Pipeline search device
10: push cable
11: outer shell
12: inner skin
13: center line
14: power line
110: rotating drum
130: guide part
131: guide frame
133: Pressure member
150: traveling body
170: Connection means
190: support part
200: control unit

Claims (7)

A rotating drum on which a push cable is wound and rotated in one direction or the other by a motor;
a guide part that guides the push cable released from the rotating drum and maintains the push cable's straightness; and
A traveling body connected to the longitudinal end of the push cable via the guide unit and capable of traveling within the pipe by winding or unwinding the push cable;
The guide part,
Pressing the push cable released from the rotating drum in the direction in which the traveling body is disposed,
The guide part,
A pair of guide frames including wheels to be stably placed on the bottom surface of the pipe and spaced apart from each other to form a space through which the push cable can pass; and
A pressing member whose longitudinal end is rotatably mounted on the guide frame, is in contact with an outer surface of the push cable, and receives power from a drive motor to rotate in one direction or the other direction;
The pressing members are arranged in plural numbers along the longitudinal and height directions of the guide frame,
The push cable released from the rotating drum is moved in a space arranged between the pair of guide frames while being inserted between the pressing members arranged in the upward/downward directions,
The pressing member is,
Includes either a pressure roller or a rotating gear,
A pipeline search device using a push method, characterized in that a sawtooth groove that engages the pressing member is formed on the outer surface of the push cable along the longitudinal direction of the push cable.
According to claim 1,
The push cable is made of either a high-strength fiber material or a rubber material, and forms a space inside where power and communication cables can be installed.
delete delete delete delete According to claim 1,
The rotating drum is,
It includes being inserted into the interior of the pipe through a manhole and rotating,
A pipeline search device using a push method further comprising a support portion disposed on an upper portion of the manhole to rotatably support the rotating drum.

Images