JP2023015918A - Wall face inspection and diagnosis device in suspension water of sewage pipe - Google Patents

Abstract

PURPOSE: To provide an observation device allowing clear and easy observation of the degradation state of an object difficult to observe in suspension water in a sewage pipe or the like.CONSTITUTION: In an observation device, a see-through vessel is formed of a front side transparent and soft see-through part and a rear side rigid body, the see-through vessel is water-tight and filled with fresh water. An observation instrument for see-through toward the front side is arranged in the see-through vessel. Furthermore, the observation device has an operation mechanism for vertically moving and turning the see-through vessel.SELECTED DRAWING: Figure 2

Description

The present invention relates to an apparatus for investigating and diagnosing the walls of waterway structures in suspended water, and more particularly to an apparatus for investigating and diagnosing the walls of waterway structures such as sewage pipes filled with suspended water.
In particular, the present invention relates to an investigative diagnosis apparatus suitable for being applied to a crossing pipeline in a bowing portion of a sewage pipe, that is, a bowing pipe.

In the sewage pipeline, the bowing portion consists of upstream and downstream manholes and a bowing pipe connecting these manholes.
Due to the nature of this part, it is always full of suspended water, that is, polluted water. Visibility is extremely poor, and even if damage occurs on the pipe wall of the slumping pipeline due to aged deterioration, it is impossible to visually observe the deterioration state without interrupting the flow of the slumping portion. Have difficulty. On the other hand, in the case of performing observation work by blocking the flow in the lower part, there is a drawback that the construction work for implementing this observation work is large and the cost increases.
For this reason, it is expected to obtain a means for visually diagnosing the damaged portion in the sewage pipe while the sewage pipe is in service, that is, while the sewage water is kept flowing down.
In addition, the applicant of the present application has previously proposed JP 2015-31026, JP 2015-31087, JP 2015-48602, etc. for measuring the cross section in the downhill pipeline. All of these methods relate to indirect measurement of cross-sections of sagging pipelines, and do not allow visual observation of damaged locations in pipelines, ie, direct diagnosis.

JP-A-08-262332 Japanese Utility Model No. 56-83712

The present invention has been made in view of the above-mentioned actual situation, and the state of the wall surface of the waterway structure under the condition of poor visibility filled with suspended water, especially the wall surface of the sewer pipe in the sewer pipe. It is an object (problem) to obtain a research and diagnosis device capable of clearly and easily visually diagnosing a deterioration state.
In order to achieve the above object, the present invention solves this problem by providing a storage container for storing a camera (imaging device) as a means for visual diagnosis under certain conditions, and by pressing this storage container against a wall surface for visual diagnosis. It is based on the knowledge that it can be achieved.
As this condition, the present inventor has at least the following conditions: - The container is watertight and filled with fresh water; I found something.

Specifically, the apparatus for examining and diagnosing a wall surface in suspended water of the present invention has the following configuration.
(First Invention)
The first (first invention) of the present invention is a wall surface survey and diagnosis device in suspended water, as described in claim 1,
A device for investigating and diagnosing a wall surface in suspended water in a full water state,
a container part that accommodates the diagnostic mechanism part of the device and provides buoyancy to the device;
A storage container having a storage space is formed by the upper transparent and soft see-through portion and the lower rigid body, and the storage container is watertight and filled with fresh water. a fluoroscopy container that constitutes a diagnostic mechanism unit that includes an observer that performs fluoroscopy;
a vertical movement mechanism part constituting a diagnostic mechanism part for vertically moving the container for fluoroscopy;
a turning mechanism part constituting a diagnostic mechanism part for turning the container for fluoroscopy;
a signal/driving cable connected to the observation device and the vertical movement mechanism and taken out to the outside;
a pulling cable connected to the front and back of the container;
characterized by consisting of
The first invention is an invention concept more specifically shown in the following embodiments and extracted from the embodiments.
In the first aspect of the present invention, the mechanism for operating the fluoroscopy container, that is, the so-called operating mechanism, consists of a vertical movement mechanism and a turning mechanism.
In the above,
a) "Upper" and "Upper" refer to the direction in which the device for this investigation and diagnosis rises due to buoyancy.
Also, in the above configuration,
1) Styrofoam is used as the means for generating buoyancy of the container,
2) a sealed compartment as means for generating buoyancy of the container;
3) The transparent and soft body of the see-through part is silicon rubber,
4) The operation of the vertical movement mechanism is driven by pneumatic (compressed air);
5) Operation of the turning mechanism is driven by pneumatic (compressed air);
are optional matters adopted from time to time.

(action)
(1)
In the use of the wall surface investigation and diagnosis device in the suspended water, when the investigation and diagnosis device is guided into a waterway structure (for example, a submerged pipe) filled with the suspended water, it rises due to the buoyancy of the container part. The upper part of the investigation and diagnosis device is in close contact with the upper surface (ceiling surface) of the waterway structure.
(2)
When the fluoroscopy container is raised from this state, the fluoroscopy portion of the fluoroscopy container receives a reaction force from the upper surface of the waterway structure, and a certain portion of the upper surface portion is deformed while pushing down the investigation and diagnosis device. The container for fluoroscopy is filled with fresh water to generate internal pressure, and the deformation of the fluoroscopy portion becomes a flat deformation while maintaining the outward convexity. In addition, a clear image, that is, the state of the wall surface, can be obtained by the observer through the clear water in the container for fluoroscopy. The image is taken out through a signal cable, displayed on a monitor screen, and recorded as necessary.
(3)
Following step (2) above, or along with step (2), the fluoroscopy container is rotated, and the state of the wall surface in the peripheral portion of the initial position is observed by the observer in the fluoroscopy container.
(4)
Next, the device for this research diagnosis is moved by a pulling cable. Prior to the movement, the fluoroscopy container is lowered, or the steps (2) and (3) are performed at the next observation position while maintaining the step (2).
(5)
Thereafter, the step (4) is continued, the state of the wall surface is visually diagnosed with a monitor, the movement of the pulling cable is recorded, and the monitor image is appropriately recorded.
(6)
When the above steps are completed, the investigation/diagnosis device is returned to the initial state, i.e., the state (1) above, returned to the initial position or moved to the terminal position, and taken out of the waterway structure.

(Second invention)
The second aspect of the present invention (the second aspect of the invention) is an invention in which the main portion of the first aspect is the main part, and is a wall surface investigation and diagnosis device for observing the state of a wall surface in suspended water, wherein: as described in
A device used by pressing against a front wall surface in suspended water,
A fluoroscopy container having a storage space inside is formed by the front transparent and soft fluoroscopy portion and the rear rigid body. comprising a forward-facing observatory,
It is characterized by
Here, "forward" and "front" refer to the direction of pressing against the wall surface of the waterway structure, and "rear" and "rear" refer to the opposite directions, including upward, downward, and lateral directions.
(action)
When using the wall surface survey and diagnosis device in suspended water, the operator directly grasps the device and presses it against the wall surface, or the device is fixed to a rigid rod and the wall surface is pushed through the rod. A mode of pressing against is adopted.

According to the wall surface investigation and diagnosis device in suspended water of the first invention, the buoyancy of the device automatically abuts on the upper surface of the water channel structure, and the see-through container in this device is combined with the transparent see-through portion. The fresh water in the fluoroscopy container provides a clear field of vision even in suspended water, and the upward movement of the fluoroscopy container in this device maintains close contact with the wall due to the flexibility of the fluoroscopy part. The deformation along the wall surface expands the field of view of the observation device, enabling visual diagnosis of the condition of the wall surface over a wide range.
Furthermore, in the first invention, the fluoroscopy container in this apparatus can be rotated to allow visual diagnosis of the wall condition by the observer in a wider range.
According to the apparatus for wall surface examination and diagnosis of the second invention, the fluoroscopy container in this apparatus has a transparent fluoroscopy portion and the clear water in the fluoroscopy container, so that a clear field of view can be obtained even in suspended water. In addition, by pressing the fluoroscopy container in this device against the wall, the fluoroscopy part deforms along the wall while maintaining close contact with the wall due to the flexibility of the fluoroscopy, widening the field of view of the observation instrument and allowing a wide range of wall conditions to be seen. can be observed.
Furthermore, in the second invention, the structure is simple, and regardless of whether the wall surface is full of water or not, the device for investigation and diagnosis can be freely operated by pressing it against the wall surface (ceiling surface, side surface, bottom surface). It can be applied to and is highly convenient.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic configuration diagram of a lay-down portion of a sewage pipeline to which the present invention is applied; FIG. 2 is a central vertical cross-sectional view showing the overall configuration of the wall surface examination and diagnosis device of the first invention. FIG. 3 is a view (partial cross section) viewed from line 3-3 in FIG. 2; FIG. 2 is a cross-sectional view showing the configuration of a diagnostic mechanism, which is a main part of the wall surface survey and diagnostic device. FIG. 2 is a front and central cross-sectional view showing the configuration of the operating mechanism of the main part of the wall surface investigation and diagnosis apparatus; 6-6 line arrow view of FIG. The plane block diagram of a control panel. Fig. 2 is an air pressure control circuit diagram of the operation mechanism of the present wall surface examination and diagnosis device. Overall layout diagram of the cable system for signal/drive piping connected to this wall surface investigation and diagnosis device. FIG. 10 is a central vertical cross-sectional view showing the overall configuration of the wall surface examination and diagnosis device of the second invention.

(First embodiment)
An embodiment of a wall surface examination and diagnosis device in suspended water such as a sewage pipe according to the present invention will be described with reference to the drawings.
FIGS. 1 to 9 show an application of one embodiment (first embodiment) of the present invention to a sewer pipe that is a waterway structure, and FIG. 1 shows the sewer pipe to which the present invention is applied. FIG. 2 to FIG. 9 show the overall configuration of the wall surface investigation and diagnosis device, and the configuration of each part and each related system.

FIG. 1 shows the undercut of a typical sewage pipe. In the figure, 1 is a manhole (1A is an upstream manhole, 1B is a downstream manhole), 2 is a bowing pipe (also called a crossing pipe) between the manholes 1A and 1B, and 3A is an upstream pipe. , 3B indicate downstream lines. Further, H is the roadbed on the ground surface, and I is the adhering matter such as earth and sand in the manhole.
As shown in the figure, the downside pipeline 2 is full of water. In addition, deposits such as earth and sand are often deposited on the bottom of the lowering pipeline 2.
A rail member 5 is built into the manhole 1 at the laying down portion, and the wire 6 is guided by the rail member 5. - 特許庁A working device J is arranged on the ground facing the opening 1a of the manhole 1, and both ends of the wire 6 are wound by winches 7 (upstream winch 7A, downstream winch 7B) mounted on the working device J. It is taken up and unwound to move the wire 6 and to introduce the required tension in the wire 6 .
The rail material 5, the wire 6, the working device J, and the winch 7 are disclosed in Japanese Unexamined Patent Application Publication No. 2015-31026 (Title of Invention: Wire to cross pipe in fluid pipeline A method, a method for threading a working wire to which a working body is attached, and a device used for the method, which is known in this publication by the working device S) and which are used in the practice of the present invention are intended to apply, but do not preclude the use of their equivalents. Furthermore, they can be omitted as appropriate.

2 to 8 show the detailed configuration of the wall surface survey diagnostic device (hereinafter simply referred to as "diagnostic device") S in suspended water.
This diagnostic device S is used by being guided into the overhanging pipeline 2 in the overhanging portion of the sewage pipeline which is full of water.
The diagnosis apparatus S (left, right, front, rear, and top and bottom are shown in the drawing) includes a container portion 10, a diagnostic mechanism portion 11 housed and installed in the container portion 10, and the diagnostic mechanism portion 11, as shown in FIG. A vertical movement mechanism 12 for moving the mechanism 11 up and down, a turning mechanism 13 for rotating the diagnostic mechanism 11 around a support shaft (described later), and further cooperation between the diagnostic apparatus S and the ground section. and a cable system 15 comprising:

Further details are given below.
Container part 10 (see FIGS. 2 and 3)
The container part 10 comprises a container body 20 which is substantially cylindrical and a floating body 21 arranged along the inner wall surface of the container body 20 .
More specifically, the container body 20 includes a side plate 20a forming a cylinder, and a required number (four in this embodiment) of disk-shaped partition walls 20b fixed to the inner surface of the side plate 20a at predetermined intervals. , and tapered portions 20c at the front and rear of the cylindrical body, which (particularly, the side plate 20a and the partition wall 20b) are in rigid contact with each other to maintain rigidity. That is, the container main body 20 constitutes the structure (frame) of the observation device S. As shown in FIG.
In this configuration, the partition 20b, particularly the two intermediate partitions (intermediate partition) 20b, are used to mount and support the diagnostic mechanism section 11 and its associated mechanisms (12, 13), which form the main part of the diagnostic apparatus S. and has sufficient strength and rigidity. Further, the partition wall 20b has a hole through which the cable of the cable system 15 is inserted.
A rigid and lightweight material is selected for the container body 20. In order to increase the rigidity, the side plate 20a and the partition wall 20b are provided with ribs as stiffening members. A plurality of clearance holes may be opened in the partition wall 20b.
Between the two partition walls 20b in the middle of the container body 20, the upper half is released. The floating body 21 is made of a lightweight material that gives buoyancy in water, and is fixed along the inner wall surface of the container body 20 and arranged. In this embodiment, foamed polystyrene is adopted as such a material.
The container portion 10 accommodates a heavy object such as a diagnostic mechanism portion 11, a vertical movement mechanism portion 12, a turning mechanism portion 13, and other wires, which will be described later, and floats upward in water with buoyancy.

Diagnostic mechanism unit 11 (see FIGS. 2, 3, and 4)
The diagnostic mechanism part 11 is housed in the container part 10, and includes a fluoroscopy container 11A mainly composed of a "transmissive body" which is moved in and out of the container part 10 and pivoted, and is housed in the fluoroscopy container 11A. and an observation device (camera unit) 11B.
(See-through container 11A, see-through portion 23, reducer 24, joint portion 25)
The see-through container 11A comprises a dome-shaped transparent and soft see-through portion 23 on the upper portion and a rigid reducer 24 in the shape of a funnel fixed to the lower portion of the see-through portion 23 to form a container body, Maintain watertightness as a whole.
More specifically, the see-through portion 23 is formed in a dome (hemispherical shell) shape from a transparent, watertight, and soft material, and silicon rubber is suitable as the material.
The reducer 24 is molded from a hard (rigid) material such as metal or synthetic resin, and has a wide opening that opens upward (in the figure), side portions that decrease in diameter downward, and has a bottom portion. , forming a rigid container body.
The see-through portion 23 and the reducer 24 are sealed via the joint portion 25 to form a storage container having a storage space inside.
Thus, the fluoroscopy container 11A is filled with fresh water and accommodates the observation device 11B.

FIG. 4 shows a joint portion 25 between the see-through portion 23 and the reducer 24. As shown in FIG.
In this joint portion 25, a brim portion 23a of the same quality as that of the see-through portion 23 is formed integrally with the lower edge of the see-through portion 23, and the upper edge of the reducer 24 is formed to correspond to the above-mentioned brim portion 23a. A hard flange 24a projecting in the direction is disposed, and a hard joining ring 25a forming a part of the joint portion 25 is abutted on the upper surface of the flange 23a, so that the flanges 23a and 24a are in contact with each other. An O-ring 25b is interposed. In this embodiment, the flange portion 24a of the reducer 24 is also used as a support plate 27, which will be described later, and is formed as a part thereof. The joint ring 25a and the flange 23a are provided with screw insertion holes at appropriate intervals in the circumferential direction, and the flange 24a is provided with screw holes at positions corresponding to the screw insertion holes. A fastener (bolt) 25c is fitted (inserted and screwed) into the hole. Thus, the see-through portion 23 and the reducer 24 are watertightly joined by tightening the fastener 25c.

(Support plate 27)
A support plate 27 is fixed to the outer surface of the see-through container 11A.
The support plate 27 has a substantially constant thickness and a constant width, and has a rectangular flat plate body, and extends horizontally along the longitudinal direction of the cylinder of the container portion 10 in both directions. In this embodiment, a flange portion 24a on the upper edge of the reducer 24 extends in both directions.

(Observation device 11B, camera unit 29)
Further, as shown in FIG. 4, the observation device 11B has a camera section 29 as its main body and is fixed to a mount 30 fixed to the inner wall surface of the reducer 24. As shown in FIG. The camera body 29a of the camera unit 29 is a television camera, preferably a high-definition camera. is taken out to the outside through the sealed portion 24b.
The camera body 29a and illumination lamp 29b are sealed (watertight) in a cylindrical storage housing 29c with an acrylic transparent disc 29d placed on the upper surface of the housing. be accommodated. A ring-shaped perforated lid 29e is mounted on the upper surface of the transparent plate 29d, and the perforated lid 29e is tightened between the bottom plate of the accommodation housing 29c with fasteners 29f consisting of long bolts and nuts. As a result, the transparent disk 29d is pressed against the housing 29c via the holed lid 29e. The housing housing 29c has its bottom plate fixed to the mounting base 30 via mounting members 29g consisting of bolts and interposed members.

(Vertical movement mechanism 12, turning mechanism 13, support system)
In addition to the above-described see-through container 11A, this embodiment is characterized by the operating mechanisms of the vertical movement mechanism 12 and the turning mechanism 13 described above.
Both of the vertical movement mechanism 12 and the turning mechanism 13 are supported by support shafts 32 rotatably fixed to the two intermediate partition walls 20b of the container 10, respectively. An arm portion 33 fixed to the end of the shaft 32 and a base plate 34 attached to the arm portion 33 form a support system.
That is, the left and right support shafts 32 are short shafts, and are fixed to the center of the disk-shaped intermediate partition 20b via bearings (rotational bearings) 32a that allow only rotation. The arm portion 33 is a fan-shaped (or inverted triangular) flat plate body, the lower portion of which is rigidly fixed to the end portion of the support shaft 32, and is widened upward. The mounting plate 34 is a rectangular flat plate having a predetermined width and thickness, and is rigidly fixed to the wide portion of the arm portion 33 . The base plate 34 is provided with a hole 34a through which the reducer 24 of the diagnostic mechanism 11 is inserted. The support shaft 32, the arm portion 33, and the base plate 34 are integrated.
Thus, in this support system, the load applied to the base plate 34 acts on the support shaft 32 via the arm portion 33, and is supported by the intermediate partition wall 20b while allowing rotation (revolving).

Vertical movement mechanism 12 (see FIGS. 2, 3, 5 and 6)
The vertical movement mechanism section 12 is a mechanism for moving the diagnostic mechanism section 11 up and down in the container section 10, and includes a support plate fixed to the outside surface of the pedestal plate 34 of the support system and the reducer 24. 27 , mainly composed of two lifting drive parts 36 , and two guide rods 37 vertically provided from the support plate 27 . The two lifting drives 36 and the two guide rods 37 are arranged point-symmetrically with respect to the center point of the base plate 34 . For this reason, through-holes 34a and 34b for arranging the lifting driving portion 36 and the guide rod 37 are opened in the pedestal plate 34 while maintaining symmetry.
More specifically, the lifting drive unit 36 is composed of two forward and backward movement actuators 36A and 36B, each actuator 36A and 36B is composed of a lower cylinder 36a and a piston 36b extending upward from the cylinder 36a. The piston 36b is loosely inserted into the insertion hole 34b of the base plate 34, and its upper end is fixed to the lower surface of the support plate 27 of the reducer 24. As shown in FIG. The lifting drive part 36 is pneumatically driven and is led out through a flexible pipe (that is, a hose body).
The two guide rods 37 are rigid and arranged point-symmetrically with respect to the central point of the support plate 27 and the pedestal plate 34 . It is installed vertically. The guide rods 37 are sufficiently long and are inserted into the corresponding insertion holes 34c of the base plate 34 in a slidable state, and are extended below the base plate 34 while holding the stroke of the piston 36b of the lifting drive unit 36, It guides the vertical movement of the support plate 27 and thus the vertical movement of the diagnostic mechanism section 11 .
(Action)
The vertical movement mechanism 12 is driven by the vertical movement of the lifting driving section 36, and the vertical movement of the piston 36b causes the vertical movement of the support plate 27. The support plate 27 is stably guided by the two guide rods 37. , the diagnostic mechanism unit 11 moves up and down without shaking.

Turning mechanism 13 (see FIGS. 2, 3, 5 and 6)
The turning mechanism unit 13 is a mechanism for turning the diagnostic mechanism unit 11 around the support shaft 32 in the container unit 10. A rotary actuator arranged at the end of the support shaft 32 on one side (the right side in this embodiment) It is mainly composed of a rotation drive unit 39. The rotation (angle, orientation) of the rotary drive unit 39 is controlled by an external signal.
In the turning mechanism section 13, the rotational movement of the rotation drive section 39 is transmitted to the support plate 27 via the support shaft 32, the arm section 33, the base plate 34, the piston 36b of the lift drive section 36, and the guide rod 37, thereby diagnosing. The mechanism section 11 is rotated. The rotation angle (swivel angle) of the rotary drive unit 39 takes plus/minus (±) 45° with the central plane as the axis of symmetry.
Note that the rotation driving portion 39 is driven by pneumatic pressure in the same manner as the lifting driving portion 36 of the vertical movement mechanism 12, and is taken out to the outside through a flexible pipe (that is, a hose body).

Cable system 15 (see FIGS. 2 and 9)
The cable system 15 consists of a signal/power cable system 15A for the observation device 11B, a signal/drive cable system 15B for the vertical movement mechanism 12 and the turning mechanism 13, and a tension cable system 15C for the container 10. .
More specifically, the end of the signal/power cable system 15A is connected to the camera body 29a and illumination lamp 29b of the camera unit 29 in the observation device 11B, and the end of the signal/drive cable system 15B is connected to the vertical movement mechanism. The other ends of the signal and signal/drive cable systems 15A and 15B are connected to the driving portions 36 and 39 of the portion 12 and the turning mechanism portion 13 and the displacement sensors arranged in the displacement portions thereof, and the other ends of the signal and driving cable systems 15A and 15B are guided to the ground portion. be killed. In addition, the tension cable system 15C is arranged on the take-up side and the other on the unwinding side through the diagnostic device S, and each end is fixed to the end of the container part 10 of the diagnostic device S, The other end is led to a winch 7 in a winding/feeding mechanism on the ground, that is, a working device J via a joint 41 and a wire 6 .

Operation panel 43 (see FIG. 7)
Driving instructions to the vertical movement mechanism 12 and the turning mechanism 13 are given by an operation panel 43 on the ground.
As shown in FIG. 7, the operation panel 43 is provided with a camera vertical movement knob (button) 44 and a camera rotation knob (button) 45, as well as a camera angle display section 46 for digitally displaying the camera angle. be. These are control devices (switch valves) and sensors in the vertical movement mechanism 12 and the turning mechanism 13 via signal lines in the signal/driving cable system 15B for the vertical movement mechanism 12 and the turning mechanism 13, that is, signal cables. and send and receive signals to operate the actuator (pneumatic cylinder).
Other switches, such as an on/off switch for the illumination lamp 29b, may be arranged on the operation panel 43 as appropriate.

Control system (see Fig. 8)
In this diagnostic apparatus S, the drive units 36 and 39 of the vertical movement mechanism 12 and the turning mechanism 13 are connected to an air pressure source (compressor) 48 on the ground via a signal/drive cable system 15B. Up-and-down motion and turning motion are controlled according to the operation on the operation panel 43 .

(Connection between diagnostic device S and ground part) (See FIG. 9)
Each operating device of the present diagnostic apparatus S in the above-described laying pipe line 2 is connected to each device arranged on the ground via a cable system 15 .
FIG. 9 shows the connections made between the diagnostic apparatus S and the ground portion via the cable system 15 (excluding the tension cable system 15C).
That is, the camera unit 29 of the observation device 11B in the diagnosis apparatus S is led out to the ground through the signal/power cable system 15A (signal line) and connected to the monitor 50. FIG. In addition, the driving parts 36 and 39 of the vertical movement mechanism part 12 and the turning mechanism part 13 are pulled out to the ground through the driving hose of the signal/driving cable system 15B, and the hose is wound up and rewound as a reel. 49 to an air compressor (compressor) 48 . A signal line of the signal/drive cable system 15B is connected to an operation panel 43 on the ground. Also in the signal/power cable system 15A (signal line) and the signal line of the signal/drive cable system 15B, reels are interposed for appropriately winding and rewinding.

Observation of the overhanging pipeline 2 by this diagnostic device S Below, the implementation procedure and this diagnostic device for the observation of the wall surface of the overhanging pipeline 2 in the overhanging part of the sewage pipeline using this diagnostic device S The action of S will be described.
The diagnostic device S is guided to the overhanging pipeline 2 in the overhanging portion of the sewage pipeline shown in FIG.
FIG. 1 shows the state of the kneeling portion prepared prior to the guidance of the diagnostic device S, and the state shown in FIG. 1 is obtained by the following steps (1) to (3).

(1) Continuity of connecting wire 6 Conducting connecting wire 6 from the upstream side ground to the upstream side manhole 1A, the siding pipeline 2, the downstream side manhole 1B, and the downstream side ground.
Concerning the conduction of the wire 6 into the laying pipe 2, it is possible to use a conventional injection nozzle or any other suitable method. Such an injection nozzle is known from the Applicants' patent No. 2791502 (patent publication for washing device for sewage pipes).

(2) Installation of rail materials 5 Rail materials 5 are installed in the upstream manhole 1A and the downstream manhole 1B. The rail member 5 is made of a long steel (especially stainless steel) shaped member, so-called C-shaped channel, and consists of a vertical portion 5a, a curved portion 5b, and a horizontal portion 5c from the top. It is split and spliced to form elongated bodies. The shape material has a groove on the front surface and a groove space formed therein, and the front surface faces the center of the manhole 1 (1A, 1B) and the rear surface is arranged along the wall surface.
(2a)
When the rail material 5 is inserted into the manhole 1 from the ground part and the lower end of the rail material 5 is positioned to face the pipe mouth of the bowing pipeline 2, the upper surface of the horizontal part 5c is kept constant from the top of the pipe mouth. After that, the rail member 5 is pulled up and the upper surface of the horizontal portion 5c is brought into contact with the top of the pipe mouth. A vertical portion 5a of the rail member 5 is arranged with a predetermined distance from the inner wall surface of the manhole 1. As shown in FIG.
The upper end of the rail material 5 is fixed on the ground portion.

(3) Fixation of wire The wire 6 is connected to the winch 7 of the working device J, the winch 7A on the upstream side and the winch 7B on the downstream side of the working device J are driven, and the wire 6 in the slack state is vertically aligned with the rail material 5. The wire is guided into the groove space through the grooves of the portion 5a and the curved portion 5b, and wound along the groove space by the downstream winch 7B. As a result, the wire 6 is stretched in a predetermined state consistently from the upstream to the downstream at the lay-down portion.

(4) Installation of diagnostic device S After the wire 6 is fixed, the diagnostic device S is fixed according to the following work procedure.
(4a) Connection of this diagnostic device S At a required position of the line 6 on the ground, this diagnostic device S is interposed and installed with an appropriate connecting tool.
That is, the tension cable system 15C before and after the diagnostic device S is short, and the diagnostic device S is connected to the wire 6 via the joint 41. As shown in FIG. Also, the cable systems 15A and 15B are long enough to be left on the ground as they are, and each end is connected to each device on the ground.
(4b) Retraction of diagnostic device S The winch 7 (7A, 7B) of the work device J is driven to guide the diagnostic device S from the ground into the manhole 1A on the upstream side. to the lower end of the rail material 5, and face the pipe mouth of the bend pipe 2, that is, the initial position, through the bent portion 5b of the rail material 5.

(5) Observation by this diagnostic device S Observation of the pipe wall of the bowing pipe 2 is started by this diagnostic device S guided to the mouth of the bowing pipe 2 .
(5a) Levitation of the diagnostic device S The diagnostic device S receives a large buoyant force from the floating body 21 installed in the container body 20, and the upper surface of the diagnostic device S is pressed against the top of the inner wall surface of the bowing pipe section 2. will be

(5b) Lifting of the fluoroscopy container 11A In the state of (5a) above, the lifting drive unit 36 of the vertical movement mechanism 12 is actuated by an upward instruction on the operation panel 43 to raise the fluoroscopy container 11A, and the fluoroscopy unit 23 is lifted. is strongly pressed against the upper wall surface of the slumping pipeline part 2.
As the fluoroscopy container 11A rises, it is guided by two guide rods 34 arranged in the vertical movement mechanism 12, and the fluoroscopy container 11A rises smoothly without shaking.
In addition, since the see-through part 23 is formed of a soft body, it is easily deformed by this pressing action, and its upper surface part is in close contact with the same curved surface over a certain range (α) of the upper wall surface of the bowing duct part 2. At this time, since the fluoroscopy container 11A is in a state of being sealed with fresh water, the field of view of the camera body 29a of the camera section 29 is not disturbed by irregular reflection or the like, and the fluoroscopic tube 11A passes through the camera body 29a. The state of the inner wall surface of the part 2 can be seen clearly. As a result, it is possible to clearly and accurately ascertain the state of the wall surface of the slumping pipeline portion 2 without obstructing the field of view due to the suspended water.
It should be noted that the volume of the fluoroscopy container 11A, ie, the amount of fresh water, remains constant even when the fluoroscopy portion 23 is deformed, and further, the fluoroscopy portion 23 always retains an outward pressing force due to the increase in the internal pressure of the fresh water. keep convex.

(5c) Rotation of the fluoroscopy container 11A The fluoroscopy container 11A is rotated to widen the observation area in the pipe circumferential direction.
In other words, the fluoroscopy container 11A is rotated in the tube circumferential direction while the fluoroscopy container 11A is kept as it is, that is, the projection state of the fluoroscopy unit 23 is maintained by driving the rotation driving unit 39 in accordance with the left/right rotation instruction from the operation panel 43 . In the step (5c) as well, since the fluoroscopy container 11A is in a state of being sealed with clean water, the field of view of the camera body 29 is not disturbed by irregular reflections, etc. The state of the inner wall surface of the pipeline portion 2 can be clearly seen. As a result, the view is not obstructed by the suspended water, and the state of the wall surface of the bowing pipeline portion 2 can be clearly and accurately grasped in a wider range.

(6) Movement of the diagnostic device S The diagnostic device S moves the pipe to the next point when the pipe wall state of the bowing pipe section 2 at one point (for example, the initial position) is observed by the device S. Axial movement is made.
Prior to this movement, the diagnostic apparatus S is moved in the initial state, that is, the state of (5a), or the fluoroscopy container 11A is kept in the raised state, that is, the state of (5b). This movement depends on the operation of the winch 7, but the recording of the distance during movement and the display and recording of images by the camera are continued. Observation by the camera is continued while the fluoroscopy container 11A is in the raised state.
(6a) Observation after movement When reaching the next point, the process of (5b) described above is carried out.
(6b) Turning Operation When expanding the observation area further in the tube circumferential direction at the point, the step (5c) is carried out to turn the fluoroscopy container 11A.
(6c) Continuation of movement After that, the above steps (6a) and (6b) are continuously carried out until reaching the desired point.

(7) Removal of the diagnostic device S When the observation by the diagnostic device S is completed, the diagnostic device S is pulled out to the downstream side manhole 1B by operating the winch 7, or pulled back to the upstream side manhole 1A. It is carried out to the above-ground part via the rail material 5 arranged in the hole 1B or the manhole 1A.

(8) Completion of work Observation work of the wall surface of the overhanging pipeline 2 by the present diagnostic device S is completed by the above steps (4) to (7).

(Specifications of diagnostic device S)
An example of the specifications of this diagnostic device S is as follows:
・Overall length (L): 80 cm (Between central partitions 20b: 28 cm)
・Diameter (φ): 40cm
Also, for the diagnostic mechanism unit 11,
・Peripheral diameter of see-through part 23: 16 cm
・Height of reducer 24: 15cm
・Overall height (natural state): 20cm
take.

(Effect of Embodiment)
In the first embodiment, the diagnostic device S guided into the full-water pipe line 2 is lifted by the buoyancy exerted by the container 10 to cause the upper surface of the diagnostic device S to move to the upper surface of the pipe line 2. Furthermore, due to the operation of the up-and-down movement mechanism 12, that is, the lifting action of the fluoroscopic container 11A, it is pressed against the upper surface of the lay-down pipeline 2 against the buoyancy. At this time, since the see-through portion 23 of the see-through container 11A is made of a soft material, it is easily deformed by this pressing action, and the upper surface portion thereof has the same curved surface over a certain range of the upper wall surface of the lowering duct portion 2. In close contact. Since the container 11A for fluoroscopy is in a sealed state with fresh water, the field of view of the camera body 29a is not disturbed such as irregular reflection. can be clearly seen over a certain range. As a result, it is possible to clearly and accurately ascertain the state of the wall surface of the slumping pipeline portion 2 without obstructing the field of view due to the suspended water.
In addition, the operation of the turning mechanism 13, that is, the turning action of the fluoroscopy container 11A enables observation (diagnosis, diagnosis on the monitor screen) of the condition of the wall surface over a wide range.

In this embodiment, the following aspects are adopted.
(Modification 1)
A mode in which the support shaft 32, the arm portion 33, and the drive portion 39 are eliminated, and the base plate 34 is fixed directly to the intermediate partition wall 20b, that is, a mode in which the base plate 34 is fixed.
In this case, the mounting position of the mounting plate 34 is not limited to the same position as that of the mounting plate 34 in this embodiment, but can be the central position of the container portion 10 .
(Modification 2)
In the supporting structure of the see-through container 11A, the supporting plate 27 is separated from the brim portion 24a of the reducer 24 and fixed directly to the side surface of the reducer 24. FIG.
(Modification 3)
The structure of the container part 10 is not limited to the present embodiment, but a closed pipe made of metal that generates buoyancy is arranged at a predetermined interval on the circumference to form a side part, and a closed pipe is arranged inside the side part. It is possible to adopt a mode in which the partition walls are configured with a space maintained.
(Other aspects)
(a) The shape of the reducer 24 is not limited to that of the present embodiment, and may be in the form of a right cylinder or a truncated cone.
(b) For the vertical movement mechanism 12, the lifting driving part 36 is one actuator, and the three guide rods 37 are three, and they are arranged symmetrically.
(c) A mode in which the fluoroscopy container 11A is turned at a certain angle in the tube circumferential direction at the initial position of the above step (5b), and the present diagnostic apparatus S is moved in the axial direction of the bowing tube 2 while maintaining the angle. . With this aspect, a visual inspection of the tube wall is performed that is not limited to the top of the tube inner circumference.

(Second embodiment)
A diagnostic apparatus according to another embodiment (second embodiment) of the present invention is a simple and easy-to-use system in which the main part (technical feature) of the diagnostic apparatus S shown in the previous embodiment, that is, the diagnostic mechanism part 11 thereof, is used alone. take form.
Hereinafter, this diagnostic device (hereinafter referred to as "simple diagnostic device") T will be described with reference to FIG. This simple diagnostic device T is generally similar to the diagnostic mechanism section 11 of the previous embodiment, but is different in details, so it will be described anew. In the drawings, the upper part is described as the "front part" and the lower part is described as the "rear part" based on the mode in which the device T is used while being pushed forward.

As shown in FIG. 10, this simple diagnostic apparatus T is mainly composed of a fluoroscopy container 100 mainly composed of a "transmissive body" and an observer (camera unit) 101 housed in the fluoroscopy container 100. . A cable 103, a monitor 105, a switch 106 and the like are used in association with the device T. FIG. Note that the monitor 105 and the switch 106 in this figure are symbolic representations, and their sizes are not determined.
(Container for fluoroscopy 100, fluoroscopy section 110, reducer 111, handle section 115)
The see-through container 100 comprises a dome-shaped transparent and soft see-through portion 110 in the front portion and a rigid reducer 111 in the shape of a hollow fixed to the rear portion of the see-through portion 110 to form a container body. , to maintain watertightness as a whole.
More specifically, the see-through portion 110 is formed in a dome (hemispherical shell) shape from a transparent, watertight, and soft material, and silicon rubber is suitable as the material.
The reducer 111 is made of a hard (rigid) material such as metal or synthetic resin, and is a rigid container that opens forward to form a wide mouth, has side portions that decrease in diameter toward the rear, and has a bottom portion. form a body
The see-through portion 110 and the reducer 111 are sealed via the joint portion 113 to form a storage container having a storage space inside.
A grip portion 115 is fixed to the outer surface of the reducer 111, and the operator grips the grip portion 115 to move the simple diagnostic apparatus T freely.
Thus, the fluoroscopy container 110 is filled with fresh water and the observation device 101 is housed therein.

The joint portion 113 shown in FIG. 10 will be described.
In this joint portion 113, a brim portion 110a of the same quality as that of the see-through portion 110 is formed integrally with the lower edge of the see-through portion 110, and the upper edge of the reducer 111 is formed to correspond to the above-mentioned brim portion 110a. A hard flange portion 111a projecting in the direction is disposed, and a hard joint ring 113a forming a part of the joint portion 113 is abutted on the upper surface of the flange portion 110a, so that the flange portions 110a and 111a are in contact with each other. An O-ring 113b is interposed. Threaded holes are formed in the joint ring 113a at appropriate intervals in the circumferential direction, and screw insertion holes are formed in positions corresponding to the screw holes in the flanges 110a and 111a. A fastener (bolt) 113c is attached (inserted/screwed) to. Thus, the see-through portion 110 and the reducer 111 are watertightly joined by tightening the fastener 113c.

(Observation device 101, camera unit 120)
Further, as shown in FIG. 10, the observation device 101 mainly includes a camera section 120 and is fixed to a mount 130 fixed to the inner wall surface of the reducer 111 . The camera body 120a of the camera unit 120 is a television camera, preferably a high-definition camera. It is taken out to the outside through the sealed part 111b of the part.
The camera body 120a and illumination lamp 120b are sealed (watertight) by an acrylic transparent disc 120d placed in front of a cylindrical housing 120c. be accommodated. A ring-shaped perforated lid 120e is abutted against the front surface of the transparent disk 120d, and the perforated lid 120e is held between the bottom plate of the storage housing 120c with fasteners 120f consisting of long bolts and nuts. The transparent disc 120d is pressed against the opening of the housing 120c through the holed lid 120e. The housing housing 120c is fixed to the mounting base 130 via a mounting material 120g consisting of a bolt and an interposed material at the bottom plate projecting outward.

Furthermore, as shown in FIG. 10, in this simple diagnostic apparatus T, a camera body 120a and an illumination lamp 120b of a camera section 120 in an observation device 101 are connected to a signal/power cable 103 and taken out to the outside. The other end of 103 is connected to monitor 105 and on/off switch 106 .

When the simple diagnostic device T is used in suspended water, (a) the simple diagnostic device is directly held by the operator, or (b) the simple diagnostic device is fixed to a grip rod having appropriate rigidity. , a mode in which the operator grips the grip rod, etc., and (a) will be described below.
In a mode in which the operator directly holds the simple diagnostic device T, the operator holds the handle 115 of the simple diagnostic device T and moves the fluoroscopic part 110 of the fluoroscopic container 100 to the wall surface (the ceiling surface in addition to the side surface) of the water channel structure. , including the bottom). Due to this pressing against the wall surface, the fluoroscopy section 110 in the pressing direction, ie, the front side, exhibits the desired action.

That is, since the see-through portion 110 of the see-through container 100 is made of a soft material, it is easily deformed by this pressing action, and its front portion is in close contact with the wall surface of the waterway structure over a certain range (α). Since the container 100 for fluoroscopy is in a state of being sealed with fresh water, the wall surface of the water channel structure can be seen within a certain range through the camera body 120 without causing disturbance such as irregular reflection in the field of view of the camera body 120. You can see clearly all the way through. As a result, the state of the wall surface of the waterway structure can be clearly and accurately grasped without obstructing the field of view due to the suspended water.

(Effect of Embodiment)
This simple diagnosis device T can be carried anywhere by an operator in suspended water, and can be applied to any wall surface such as an inclined surface, a curved surface, or an uneven surface, and thus has high versatility. Furthermore, since the operator can select any position, it is suitable for provisional/preliminary investigations as well as emergency investigations, and is highly convenient.

The present invention is not limited to the above-described embodiments, and various design changes are possible within the scope of the basic technical idea of the present invention.

S, T... wall surface investigation and diagnosis device, 1... manhole, 1A... upstream side manhole, 1B... downstream side manhole, 2... downside duct, 3A... upstream side duct, 3B... downstream side duct, 5... Rail material, 6... Wire, 7... Winch, 7A... Upstream winch, 7B... Downstream winch,
(First embodiment)
DESCRIPTION OF SYMBOLS 10... Container part, 11... Diagnosis mechanism part, 11A... Container for fluoroscopy, 11B... Observation instrument (camera part), 12... Up-and-down movement mechanism part, 13... Rotation mechanism part, 15... Cable system, 20... Container main body, 20a Side plate 20b Partition wall 21 Floating body 23 See-through part 24 Reducer 27 Support plate 29 Camera part 32 Support shaft 33 Arm part 34 Base plate 36 Lifting Drive unit 37 Guide rod 39 Rotary drive unit 43 Operation panel (second embodiment)
DESCRIPTION OF SYMBOLS 100... Container for fluoroscopy, 101... Observation instrument (camera part), 103... Cable system, 110... fluoroscopy part, 111... Reducer, 115... Handle part, 120... Camera part

The present invention relates to an apparatus for investigating and diagnosing the walls of waterway structures in suspended water, and more particularly to an apparatus for investigating and diagnosing the walls of waterway structures such as sewage pipes filled with suspended water.
In particular, the present invention relates to an investigative diagnosis apparatus suitable for being applied to a crossing pipeline in a bowing portion of a sewage pipe, that is, a bowing pipe.

In the sewage pipeline, the bowing portion consists of upstream and downstream manholes and a bowing pipe connecting these manholes.
Due to the nature of this part, it is always full of suspended water, that is, polluted water. Visibility is extremely poor, and even if damage occurs on the pipe wall of the slumping pipeline due to aged deterioration, it is impossible to visually observe the deterioration state without interrupting the flow of the slumping portion. Have difficulty. On the other hand, in the case of performing observation work by blocking the flow in the lower part, there is a drawback that the construction work for implementing this observation work is large and the cost increases.
For this reason, it is expected to obtain a means for visually diagnosing the damaged portion in the sewage pipe while the sewage pipe is in service, that is, while the sewage water is kept flowing down.
In addition, the applicant of the present application has previously proposed JP 2015-31026, JP 2015-31087, JP 2015-48602, etc. for measuring the cross section in the downhill pipeline. All of these methods relate to indirect measurement of cross-sections of sagging pipelines, and do not allow visual observation of damaged locations in pipelines, ie, direct diagnosis.

JP-A-08-262332 Japanese Utility Model No. 56-83712

The present invention has been made in view of the above-mentioned actual situation, and the state of the wall surface of the waterway structure under the condition of poor visibility filled with suspended water, especially the wall surface of the sewer pipe in the sewer pipe. It is an object (problem) to obtain a research and diagnosis device capable of clearly and easily visually diagnosing a deterioration state.
In order to achieve the above object, the present invention solves this problem by providing a storage container for storing a camera (imaging device) as a means for visual diagnosis under certain conditions, and by pressing this storage container against a wall surface for visual diagnosis. It is based on the knowledge that it can be achieved.

Specifically, the apparatus for examining and diagnosing a wall surface in suspended water of the present invention has the following configuration.
The main configuration of the apparatus for wall survey diagnosis in suspended water of the present invention is as described in claim 1,
A device for investigating and diagnosing a wall surface in suspended water in a full water state,
a container part that accommodates the diagnostic mechanism part of the device and provides buoyancy to the device;
A storage container having a storage space is formed by the upper transparent and soft see-through portion and the lower rigid body, and the storage container is watertight and filled with fresh water. a fluoroscopy container that constitutes a diagnostic mechanism unit that includes an observer that performs fluoroscopy;
a vertical movement mechanism part constituting a diagnostic mechanism part for vertically moving the container for fluoroscopy;
a turning mechanism part constituting a diagnostic mechanism part for turning the container for fluoroscopy;
a signal/driving cable connected to the observation device and the vertical movement mechanism and taken out to the outside;
a pulling cable connected to the front and back of the container;
characterized by consisting of
The present invention is an inventive concept more specifically shown in the following embodiments or extracted from the embodiments.
In the present invention, the mechanism for operating the fluoroscopic container, the so-called operating mechanism, consists of a vertical movement mechanism and a turning mechanism.
In the above,
a) "Upper" and "Upper" refer to the direction in which the device for this investigation and diagnosis rises due to buoyancy.
Also, in the above configuration,
1) Styrofoam is used as the means for generating buoyancy of the container,
2) a sealed compartment as means for generating buoyancy of the container;
3) The transparent and soft body of the see-through part is silicon rubber,
4) The operation of the vertical movement mechanism is driven by pneumatic (compressed air);
5) Operation of the turning mechanism is driven by pneumatic (compressed air);
are optional matters adopted from time to time.

(Action)
(1)
In the use of the wall surface investigation and diagnosis device in the suspended water, when the investigation and diagnosis device is guided into a waterway structure (for example, a submerged pipe) filled with the suspended water, it rises due to the buoyancy of the container part. The upper part of the investigation and diagnosis device is in close contact with the upper surface (ceiling surface) of the waterway structure.
(2)
When the fluoroscopy container is raised from this state, the fluoroscopy portion of the fluoroscopy container receives a reaction force from the upper surface of the waterway structure, and a certain portion of the upper surface portion is deformed while pushing down the investigation and diagnosis device. The container for fluoroscopy is filled with fresh water to generate internal pressure, and the deformation of the fluoroscopy portion becomes a flat deformation while maintaining the outward convexity. In addition, a clear image, that is, the state of the wall surface, can be obtained by the observer through the clear water in the container for fluoroscopy. The image is taken out through a signal cable, displayed on a monitor screen, and recorded as necessary.
(3)
Following step (2) above, or along with step (2), the fluoroscopy container is rotated, and the state of the wall surface in the peripheral portion of the initial position is observed by the observer in the fluoroscopy container.
(4)
Next, the device for this research diagnosis is moved by a pulling cable. Prior to the movement, the fluoroscopy container is lowered, or the steps (2) and (3) are performed at the next observation position while maintaining the step (2).
(5)
After that, the step (4) is continued, the state of the wall surface is visually diagnosed with a monitor, the movement of the pulling cable is recorded, and the monitor image is recorded as appropriate.
(6)
When the above steps are completed, the investigation/diagnosis device is returned to the initial state, i.e., the state (1) above, returned to the initial position or moved to the terminal position, and taken out of the waterway structure.

According to the device for wall surface investigation and diagnosis in suspended water of the present invention, its buoyancy automatically abuts on the upper surface of the waterway structure. A clear view can be obtained even in suspended water due to the clear water in the container, and the upward movement of the fluoroscopic container in this device allows the fluoroscopic part to maintain close contact with the wall surface due to the softness of the fluoroscopic part. It is an epoch-making tool for visually diagnosing walls in suspended water because it is deformed along the trajectory and the field of view of the observation device is widened.
Furthermore, according to the present invention, the fluoroscopy container in the present apparatus can be rotated to allow a wider range of visual diagnosis of the condition of the wall surface by the observer.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic configuration diagram of a lay-down portion of a sewage pipeline to which the present invention is applied; BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a central vertical cross-sectional view showing the overall configuration of a wall surface examination and diagnosis apparatus of the present invention; FIG. 3 is a view (partial cross section) viewed from line 3-3 in FIG. 2; FIG. 2 is a cross-sectional view showing the configuration of a diagnostic mechanism, which is a main part of the wall surface survey and diagnostic device. FIG. 2 is a front and central cross-sectional view showing the configuration of the operating mechanism of the main part of the wall surface investigation and diagnosis apparatus; 6-6 line arrow view of FIG. The plane block diagram of a control panel. Fig. 2 is an air pressure control circuit diagram of the operation mechanism of the present wall surface examination and diagnosis device. Overall layout diagram of the cable system for signal/drive piping connected to this wall surface investigation and diagnosis device.

An embodiment of a wall surface examination and diagnosis device in suspended water such as a sewage pipe according to the present invention will be described with reference to the drawings.
FIGS. 1 to 9 show an application of the sewer pipe which is a waterway structure according to one embodiment of the present invention, and FIG. 1 is a schematic configuration of the sewer pipe which the present invention is applied to. , and FIGS. 2 to 9 show the overall structure of this wall surface investigation and diagnosis device, each part, and the configuration of each related system.

FIG. 1 shows the undercut of a typical sewage pipe. In the figure, 1 is a manhole (1A is an upstream manhole, 1B is a downstream manhole), 2 is a bowing pipe (also called a crossing pipe) between the manholes 1A and 1B, and 3A is an upstream pipe. , 3B indicate downstream lines. Further, H is the roadbed on the ground surface, and I is the adhering matter such as earth and sand in the manhole.
As shown in the figure, the downside pipeline 2 is full of water. In addition, deposits such as earth and sand are often deposited on the bottom of the lowering pipeline 2.
A rail member 5 is built into the manhole 1 at the laying down portion, and the wire 6 is guided by the rail member 5. - 特許庁A working device J is arranged on the ground facing the opening 1a of the manhole 1, and both ends of the wire 6 are wound by winches 7 (upstream winch 7A, downstream winch 7B) mounted on the working device J. It is taken up and unwound to move the wire 6 and to introduce the required tension in the wire 6 .
The rail material 5, the wire 6, the working device J, and the winch 7 are disclosed in Japanese Unexamined Patent Application Publication No. 2015-31026 (Title of Invention: Wire to cross pipe in fluid pipeline A method, a method for threading a working wire to which a working body is attached, and a device used for the method, which is known in this publication by the working device S) and which are used in the practice of the present invention are intended to apply, but do not preclude the use of their equivalents. Furthermore, they can be omitted as appropriate.

2 to 8 show the detailed configuration of the wall surface survey diagnostic device (hereinafter simply referred to as "diagnostic device") S in suspended water.
This diagnostic device S is used by being guided into the overhanging pipeline 2 in the overhanging portion of the sewage pipeline which is full of water.
The diagnosis apparatus S (left, right, front, rear, and top and bottom are shown in the drawing) includes a container portion 10, a diagnostic mechanism portion 11 housed and installed in the container portion 10, and the diagnostic mechanism portion 11, as shown in FIG. A vertical movement mechanism 12 for moving the mechanism 11 up and down, a turning mechanism 13 for rotating the diagnostic mechanism 11 around a support shaft (described later), and further cooperation between the diagnostic apparatus S and the ground section. and a cable system 15 comprising:

Further details are given below.
Container part 10 (see FIGS. 2 and 3)
The container part 10 comprises a container body 20 which is substantially cylindrical and a floating body 21 arranged along the inner wall surface of the container body 20 .
More specifically, the container body 20 includes a side plate 20a forming a cylinder, and a required number (four in this embodiment) of disk-shaped partition walls 20b fixed to the inner surface of the side plate 20a at predetermined intervals. , and tapered portions 20c at the front and rear of the cylindrical body, which (particularly, the side plate 20a and the partition wall 20b) are in rigid contact with each other to maintain rigidity. That is, the container main body 20 constitutes the structure (frame) of the observation device S. As shown in FIG.
In this configuration, the partition 20b, particularly the two intermediate partitions (intermediate partition) 20b, are used to mount and support the diagnostic mechanism section 11 and its associated mechanisms (12, 13), which form the main part of the diagnostic apparatus S. and has sufficient strength and rigidity. Further, the partition wall 20b has a hole through which the cable of the cable system 15 is inserted.
A rigid and lightweight material is selected for the container body 20. In order to increase the rigidity, the side plate 20a and the partition wall 20b are provided with ribs as stiffening members. A plurality of clearance holes may be opened in the partition wall 20b.
Between the two partition walls 20b in the middle of the container body 20, the upper half is released. The floating body 21 is made of a lightweight material that gives buoyancy in water, and is fixed along the inner wall surface of the container body 20 and arranged. In this embodiment, foamed polystyrene is adopted as such a material.
The container portion 10 accommodates a heavy object such as a diagnostic mechanism portion 11, a vertical movement mechanism portion 12, a turning mechanism portion 13, and other wires, which will be described later, and floats upward in water with buoyancy.

Diagnostic mechanism unit 11 (see FIGS. 2, 3, and 4)
The diagnostic mechanism part 11 is housed in the container part 10, and includes a fluoroscopy container 11A mainly composed of a "transmissive body" which is moved in and out of the container part 10 and pivoted, and is housed in the fluoroscopy container 11A. and an observation device (camera unit) 11B.
(See-through container 11A, see-through portion 23, reducer 24, joint portion 25)
The see-through container 11A comprises a dome-shaped transparent and soft see-through portion 23 on the upper portion and a rigid reducer 24 in the shape of a funnel fixed to the lower portion of the see-through portion 23 to form a container body, Maintain watertightness as a whole.
More specifically, the see-through portion 23 is formed in a dome (hemispherical shell) shape from a transparent, watertight, and soft material, and silicon rubber is suitable as the material.
The reducer 24 is molded from a hard (rigid) material such as metal or synthetic resin, and has a wide opening that opens upward (in the figure), side portions that decrease in diameter downward, and has a bottom portion. , forming a rigid container body.
The see-through portion 23 and the reducer 24 are sealed via the joint portion 25 to form a storage container having a storage space inside.
Thus, the fluoroscopy container 11A is filled with fresh water and accommodates the observation device 11B.

FIG. 4 shows a joint portion 25 between the see-through portion 23 and the reducer 24. As shown in FIG.
In this joint portion 25, a brim portion 23a of the same quality as that of the see-through portion 23 is formed integrally with the lower edge of the see-through portion 23, and the upper edge of the reducer 24 is formed to correspond to the above-mentioned brim portion 23a. A hard flange 24a projecting in the direction is disposed, and a hard joining ring 25a forming a part of the joint portion 25 is abutted on the upper surface of the flange 23a, so that the flanges 23a and 24a are in contact with each other. An O-ring 25b is interposed. In this embodiment, the flange portion 24a of the reducer 24 is also used as a support plate 27, which will be described later, and is formed as a part thereof. The joint ring 25a and the flange 23a are provided with screw insertion holes at appropriate intervals in the circumferential direction, and the flange 24a is provided with screw holes at positions corresponding to the screw insertion holes. A fastener (bolt) 25c is fitted (inserted and screwed) into the hole. Thus, the see-through portion 23 and the reducer 24 are watertightly joined by tightening the fastener 25c.

(Support plate 27)
A support plate 27 is fixed to the outer surface of the see-through container 11A.
The support plate 27 has a substantially constant thickness and a constant width, and has a rectangular flat plate body, and extends horizontally along the longitudinal direction of the cylinder of the container portion 10 in both directions. In this embodiment, a flange portion 24a on the upper edge of the reducer 24 extends in both directions.

(Observation device 11B, camera unit 29)
Further, as shown in FIG. 4, the observation device 11B has a camera section 29 as its main body and is fixed to a mount 30 fixed to the inner wall surface of the reducer 24. As shown in FIG. The camera body 29a of the camera unit 29 is a television camera, preferably a high-definition camera. is taken out to the outside through the sealed portion 24b.
The camera body 29a and illumination lamp 29b are sealed (watertight) in a cylindrical storage housing 29c with an acrylic transparent disc 29d placed on the upper surface of the housing. be accommodated. A ring-shaped perforated lid 29e is mounted on the upper surface of the transparent plate 29d, and the perforated lid 29e is tightened between the bottom plate of the accommodation housing 29c with fasteners 29f consisting of long bolts and nuts. As a result, the transparent disk 29d is pressed against the housing 29c via the holed lid 29e. The housing housing 29c has its bottom plate fixed to the mounting base 30 via mounting members 29g consisting of bolts and interposed members.

(Vertical movement mechanism 12, turning mechanism 13, support system)
In addition to the above-described see-through container 11A, this embodiment is characterized by the operating mechanisms of the vertical movement mechanism 12 and the turning mechanism 13 described above.
Both of the vertical movement mechanism 12 and the turning mechanism 13 are supported by support shafts 32 rotatably fixed to the two intermediate partition walls 20b of the container 10, respectively. An arm portion 33 fixed to the end of the shaft 32 and a base plate 34 attached to the arm portion 33 form a support system.
That is, the left and right support shafts 32 are short shafts, and are fixed to the center of the disk-shaped intermediate partition 20b via bearings (rotational bearings) 32a that allow only rotation. The arm portion 33 is a fan-shaped (or inverted triangular) flat plate body, the lower portion of which is rigidly fixed to the end portion of the support shaft 32, and is widened upward. The mounting plate 34 is a rectangular flat plate having a predetermined width and thickness, and is rigidly fixed to the wide portion of the arm portion 33 . The base plate 34 is provided with a hole 34a through which the reducer 24 of the diagnostic mechanism 11 is inserted. The support shaft 32, the arm portion 33, and the base plate 34 are integrated.
Thus, in this support system, the load applied to the base plate 34 acts on the support shaft 32 via the arm portion 33, and is supported by the intermediate partition wall 20b while allowing rotation (revolving).

Vertical movement mechanism 12 (see FIGS. 2, 3, 5 and 6)
The vertical movement mechanism section 12 is a mechanism for moving the diagnostic mechanism section 11 up and down in the container section 10, and includes a support plate fixed to the outside surface of the pedestal plate 34 of the support system and the reducer 24. 27 , mainly composed of two lifting drive parts 36 , and two guide rods 37 vertically provided from the support plate 27 . The two lifting drives 36 and the two guide rods 37 are arranged point-symmetrically with respect to the center point of the base plate 34 . For this reason, through-holes 34a and 34b for arranging the lifting driving portion 36 and the guide rod 37 are opened in the pedestal plate 34 while maintaining symmetry.
More specifically, the lifting drive unit 36 is composed of two forward and backward movement actuators 36A and 36B, each actuator 36A and 36B is composed of a lower cylinder 36a and a piston 36b extending upward from the cylinder 36a. The piston 36b is loosely inserted into the insertion hole 34b of the base plate 34, and its upper end is fixed to the lower surface of the support plate 27 of the reducer 24. As shown in FIG. The lifting drive part 36 is pneumatically driven and is led out through a flexible pipe (that is, a hose body).
The two guide rods 37 are rigid and arranged point-symmetrically with respect to the central point of the support plate 27 and the pedestal plate 34 . It is installed vertically. The guide rods 37 are sufficiently long and are inserted into the corresponding insertion holes 34c of the base plate 34 in a slidable state, and are extended below the base plate 34 while holding the stroke of the piston 36b of the lifting drive unit 36, It guides the vertical movement of the support plate 27 and thus the vertical movement of the diagnostic mechanism section 11 .
(action)
The vertical movement mechanism 12 is driven by the vertical movement of the lifting driving section 36, and the vertical movement of the piston 36b causes the vertical movement of the support plate 27. The support plate 27 is stably guided by the two guide rods 37. , the diagnostic mechanism unit 11 moves up and down without shaking.

Turning mechanism 13 (see FIGS. 2, 3, 5 and 6)
The turning mechanism unit 13 is a mechanism for turning the diagnostic mechanism unit 11 around the support shaft 32 in the container unit 10. A rotary actuator arranged at the end of the support shaft 32 on one side (the right side in this embodiment) It is mainly composed of a rotation drive unit 39. The rotation (angle, orientation) of the rotary drive unit 39 is controlled by an external signal.
In the turning mechanism section 13, the rotational movement of the rotation drive section 39 is transmitted to the support plate 27 via the support shaft 32, the arm section 33, the base plate 34, the piston 36b of the lift drive section 36, and the guide rod 37, thereby diagnosing. The mechanism section 11 is rotated. The rotation angle (swivel angle) of the rotary drive unit 39 takes plus/minus (±) 45° with the central plane as the axis of symmetry.
Note that the rotation driving portion 39 is driven by pneumatic pressure in the same manner as the lifting driving portion 36 of the vertical movement mechanism 12, and is taken out to the outside through a flexible pipe (that is, a hose body).

Cable system 15 (see FIGS. 2 and 9)
The cable system 15 consists of a signal/power cable system 15A for the observation device 11B, a signal/drive cable system 15B for the vertical movement mechanism 12 and the turning mechanism 13, and a tension cable system 15C for the container 10. .
More specifically, the end of the signal/power cable system 15A is connected to the camera body 29a and illumination lamp 29b of the camera unit 29 in the observation device 11B, and the end of the signal/drive cable system 15B is connected to the vertical movement mechanism. The other ends of the signal and signal/drive cable systems 15A and 15B are connected to the driving portions 36 and 39 of the portion 12 and the turning mechanism portion 13 and the displacement sensors arranged in the displacement portions thereof, and the other ends of the signal and driving cable systems 15A and 15B are guided to the ground portion. be killed. In addition, the tension cable system 15C is arranged on the take-up side and the other on the unwinding side through the diagnostic device S, and each end is fixed to the end of the container part 10 of the diagnostic device S, The other end is led to a winch 7 in a winding/feeding mechanism on the ground, that is, a working device J via a joint 41 and a wire 6 .

Operation panel 43 (see FIG. 7)
Driving instructions to the vertical movement mechanism 12 and the turning mechanism 13 are given by an operation panel 43 on the ground.
As shown in FIG. 7, the operation panel 43 is provided with a camera vertical movement knob (button) 44 and a camera rotation knob (button) 45, as well as a camera angle display section 46 for digitally displaying the camera angle. be. These are control devices (switch valves) and sensors in the vertical movement mechanism 12 and the turning mechanism 13 via signal lines in the signal/driving cable system 15B for the vertical movement mechanism 12 and the turning mechanism 13, that is, signal cables. and send and receive signals to operate the actuator (pneumatic cylinder).
Other switches, such as an on/off switch for the illumination lamp 29b, may be arranged on the operation panel 43 as appropriate.

Control system (see Fig. 8)
In this diagnostic apparatus S, the drive units 36 and 39 of the vertical movement mechanism 12 and the turning mechanism 13 are connected to an air pressure source (compressor) 48 on the ground via a signal/drive cable system 15B. Up-and-down motion and turning motion are controlled according to the operation on the operation panel 43 .

(Connection between diagnostic device S and ground part) (See FIG. 9)
Each operating device of the present diagnostic apparatus S in the above-described laying pipe line 2 is connected to each device arranged on the ground via a cable system 15 .
FIG. 9 shows the connections made between the diagnostic apparatus S and the ground portion via the cable system 15 (excluding the tension cable system 15C).
That is, the camera unit 29 of the observation device 11B in the diagnosis apparatus S is led out to the ground through the signal/power cable system 15A (signal line) and connected to the monitor 50. FIG. In addition, the driving parts 36 and 39 of the vertical movement mechanism part 12 and the turning mechanism part 13 are pulled out to the ground through the driving hose of the signal/driving cable system 15B, and the hose is wound up and rewound as a reel. 49 to an air compressor (compressor) 48 . A signal line of the signal/drive cable system 15B is connected to an operation panel 43 on the ground. Also in the signal/power cable system 15A (signal line) and the signal line of the signal/drive cable system 15B, reels are interposed for appropriately winding and rewinding.

Observation of the overhanging pipeline 2 by this diagnostic device S Below, the implementation procedure and this diagnostic device for the observation of the wall surface of the overhanging pipeline 2 in the overhanging part of the sewage pipeline using this diagnostic device S The action of S will be described.
The diagnostic device S is guided to the overhanging pipeline 2 in the overhanging portion of the sewage pipeline shown in FIG.
FIG. 1 shows the state of the kneeling portion prepared prior to the guidance of the diagnostic device S, and the state shown in FIG. 1 is obtained by the following steps (1) to (3).

(1) Continuity of connecting wire 6 Conducting connecting wire 6 from the upstream side ground to the upstream side manhole 1A, the siding pipeline 2, the downstream side manhole 1B, and the downstream side ground.
Concerning the conduction of the wire 6 into the laying pipe 2, it is possible to use a conventional injection nozzle or any other suitable method. Such an injection nozzle is known from the Applicants' patent No. 2791502 (patent publication for washing device for sewage pipes).

(2) Installation of rail materials 5 Rail materials 5 are installed in the upstream manhole 1A and the downstream manhole 1B. The rail member 5 is made of a long steel (especially stainless steel) shaped member, so-called C-shaped channel, and consists of a vertical portion 5a, a curved portion 5b, and a horizontal portion 5c from the top. It is split and spliced to form elongated bodies. The shape material has a groove on the front surface and a groove space formed therein, and the front surface faces the center of the manhole 1 (1A, 1B) and the rear surface is arranged along the wall surface.
(2a)
When the rail material 5 is inserted into the manhole 1 from the ground part and the lower end of the rail material 5 is positioned to face the pipe mouth of the bowing pipeline 2, the upper surface of the horizontal part 5c is kept constant from the top of the pipe mouth. After that, the rail member 5 is pulled up and the upper surface of the horizontal portion 5c is brought into contact with the top of the pipe mouth. A vertical portion 5a of the rail member 5 is arranged with a predetermined distance from the inner wall surface of the manhole 1. As shown in FIG.
The upper end of the rail material 5 is fixed on the ground portion.

(3) Fixation of wire The wire 6 is connected to the winch 7 of the working device J, the winch 7A on the upstream side and the winch 7B on the downstream side of the working device J are driven, and the wire 6 in the slack state is vertically aligned with the rail material 5. The wire is guided into the groove space through the grooves of the portion 5a and the curved portion 5b, and wound along the groove space by the downstream winch 7B. As a result, the wire 6 is stretched in a predetermined state consistently from the upstream to the downstream at the lay-down portion.

(4) Installation of diagnostic device S After the wire 6 is fixed, the diagnostic device S is fixed according to the following work procedure.
(4a) Connection of this diagnostic device S At a required position of the line 6 on the ground, this diagnostic device S is interposed and installed with an appropriate connecting tool.
That is, the tension cable system 15C before and after the diagnostic device S is short, and the diagnostic device S is connected to the wire 6 via the joint 41. As shown in FIG. Also, the cable systems 15A and 15B are long enough to be left on the ground as they are, and each end is connected to each device on the ground.
(4b) Retraction of diagnostic device S The winch 7 (7A, 7B) of the work device J is driven to guide the diagnostic device S from the ground into the manhole 1A on the upstream side. to the lower end of the rail material 5, and face the pipe mouth of the bend pipe 2, that is, the initial position, through the bent portion 5b of the rail material 5.

(5) Observation by this diagnostic device S Observation of the pipe wall of the bowing pipe 2 is started by this diagnostic device S guided to the mouth of the bowing pipe 2 .
(5a) Levitation of the diagnostic device S The diagnostic device S receives a large buoyant force from the floating body 21 installed in the container body 20, and the upper surface of the diagnostic device S is pressed against the top of the inner wall surface of the bowing pipe section 2. will be

(5b) Lifting of the fluoroscopy container 11A In the state of (5a) above, the lifting drive unit 36 of the vertical movement mechanism 12 is actuated by an upward instruction on the operation panel 43 to raise the fluoroscopy container 11A, and the fluoroscopy unit 23 is lifted. is strongly pressed against the upper wall surface of the slumping pipeline part 2.
As the fluoroscopy container 11A rises, it is guided by two guide rods 34 arranged in the vertical movement mechanism 12, and the fluoroscopy container 11A rises smoothly without shaking.
In addition, since the see-through part 23 is formed of a soft body, it is easily deformed by this pressing action, and its upper surface part is in close contact with the same curved surface over a certain range (α) of the upper wall surface of the bowing duct part 2. At this time, since the fluoroscopy container 11A is in a state of being sealed with fresh water, the field of view of the camera body 29a of the camera section 29 is not disturbed by irregular reflection or the like, and the fluoroscopic tube 11A passes through the camera body 29a. The state of the inner wall surface of the part 2 can be seen clearly. As a result, it is possible to clearly and accurately ascertain the state of the wall surface of the slumping pipeline portion 2 without obstructing the field of view due to the suspended water.
It should be noted that the volume of the fluoroscopy container 11A, ie, the amount of fresh water, remains constant even when the fluoroscopy portion 23 is deformed, and further, the fluoroscopy portion 23 always retains an outward pressing force due to the increase in the internal pressure of the fresh water. keep convex.

(5c) Rotation of the fluoroscopy container 11A The fluoroscopy container 11A is rotated to widen the observation area in the tube circumferential direction.
In other words, the fluoroscopy container 11A is rotated in the tube circumferential direction while the fluoroscopy container 11A is kept as it is, that is, the projection state of the fluoroscopy unit 23 is maintained by driving the rotation driving unit 39 in accordance with the left/right rotation instruction from the operation panel 43 . In the step (5c) as well, since the fluoroscopy container 11A is in a state of being sealed with clean water, the field of view of the camera body 29 is not disturbed by irregular reflections, etc. The state of the inner wall surface of the pipeline portion 2 can be clearly seen. As a result, the view is not obstructed by the suspended water, and the state of the wall surface of the bowing pipeline portion 2 can be clearly and accurately grasped in a wider range.

(6) Movement of the diagnostic device S The diagnostic device S moves the pipe to the next point when the pipe wall state of the bowing pipe section 2 at one point (for example, the initial position) is observed by the device S. Axial movement is made.
Prior to this movement, the diagnostic apparatus S is moved in the initial state, that is, the state of (5a), or the fluoroscopy container 11A is kept in the raised state, that is, the state of (5b). This movement depends on the operation of the winch 7, but the recording of the distance during movement and the display and recording of images by the camera are continued. Observation by the camera is continued while the fluoroscopy container 11A is in the raised state.
(6a) Observation after movement When reaching the next point, the process of (5b) described above is carried out.
(6b) Turning Operation When expanding the observation area further in the tube circumferential direction at the point, the step (5c) is carried out to turn the fluoroscopy container 11A.
(6c) Continuation of movement After that, the above steps (6a) and (6b) are continuously carried out until reaching the desired point.

(7) Removal of the diagnostic device S When the observation by the diagnostic device S is completed, the diagnostic device S is pulled out to the downstream side manhole 1B by operating the winch 7, or pulled back to the upstream side manhole 1A. It is carried out to the above-ground part via the rail material 5 arranged in the hole 1B or the manhole 1A.

(8) Completion of work Observation work of the wall surface of the overhanging pipeline 2 by the present diagnostic device S is completed by the above steps (4) to (7).

(Specifications of diagnostic device S)
An example of the specifications of this diagnostic device S is as follows:
・Overall length (L): 80 cm (Between central partitions 20b: 28 cm)
・Diameter (φ): 40cm
Also, for the diagnostic mechanism unit 11,
・Peripheral diameter of see-through part 23: 16 cm
・Height of reducer 24: 15 cm
・Overall height (natural state): 20cm
take.

(Effect of Embodiment)
In this embodiment, the diagnostic device S guided into the full-water pipeline 2 is brought into close contact with the upper surface of the pipeline 2 due to the buoyancy exerted by the container 10 . Further, due to the operation of the vertical movement mechanism 12, that is, the lifting action of the fluoroscopy container 11A, the fluoroscopic container 11A is pressed against the buoyant force against the upper surface of the lay-down duct 2. As shown in FIG. At this time, since the see-through portion 23 of the see-through container 11A is made of a soft material, it is easily deformed by this pressing action, and the upper surface portion thereof has the same curved surface over a certain range of the upper wall surface of the lowering duct portion 2. In close contact. Since the container 11A for fluoroscopy is in a sealed state with fresh water, the field of view of the camera body 29a is not disturbed such as irregular reflection. can be clearly seen over a certain range. As a result, it is possible to clearly and accurately ascertain the state of the wall surface of the slumping pipeline portion 2 without obstructing the field of view due to the suspended water.
In addition, the operation of the turning mechanism 13, that is, the turning action of the fluoroscopy container 11A enables observation (diagnosis, diagnosis on the monitor screen) of the condition of the wall surface over a wide range.

In this embodiment, the following aspects are adopted.
(Modification 1)
A mode in which the support shaft 32, the arm portion 33, and the drive portion 39 are eliminated, and the base plate 34 is fixed directly to the intermediate partition wall 20b, that is, a mode in which the base plate 34 is fixed.
In this case, the mounting position of the mounting plate 34 is not limited to the same position as that of the mounting plate 34 in this embodiment, but can be the central position of the container portion 10 .
(Modification 2)
In the supporting structure of the see-through container 11A, the supporting plate 27 is separated from the brim portion 24a of the reducer 24 and fixed directly to the side surface of the reducer 24. FIG.
(Modification 3)
The structure of the container part 10 is not limited to the present embodiment, but a closed pipe made of metal that generates buoyancy is arranged at a predetermined interval on the circumference to form a side part, and a closed pipe is arranged inside the side part. It is possible to adopt a mode in which the partition walls are configured with a space maintained.
(Other aspects)
(a) The shape of the reducer 24 is not limited to that of the present embodiment, and may be in the form of a right cylinder or a truncated cone.
(b) For the vertical movement mechanism 12, the lifting driving part 36 is one actuator, and the three guide rods 37 are three, and they are arranged symmetrically.
(c) A mode in which the fluoroscopy container 11A is turned at a certain angle in the tube circumferential direction at the initial position of the above step (5b), and the present diagnostic apparatus S is moved in the axial direction of the bowing tube 2 while maintaining the angle. . With this aspect, a visual inspection of the tube wall is performed that is not limited to the top of the tube inner circumference.

The present invention is not limited to the above-described embodiments, and various design changes are possible within the scope of the basic technical idea of the present invention.

S... Apparatus for wall investigation and diagnosis 1... Manhole 1A... Upstream manhole 1B... Downstream manhole 2... Downward duct 3A... Upstream duct 3B... Downstream duct 5... Rail material, 6 wire, 7 winch, 7A upstream winch, 7B downstream winch,
DESCRIPTION OF SYMBOLS 10... Container part, 11... Diagnosis mechanism part, 11A... Container for fluoroscopy, 11B... Observation instrument (camera part), 12... Up-and-down movement mechanism part, 13... Rotation mechanism part, 15... Cable system, 20... Container main body, 20a Side plate 20b Partition wall 21 Floating body 23 See-through part 24 Reducer 27 Support plate 29 Camera part 32 Support shaft 33 Arm part 34 Base plate 36 Lifting Drive unit 37 Guide rod 39 Rotary drive unit 43 Operation panel

Claims (5)

A device for investigating and diagnosing a wall surface in suspended water in a full water state,
a container part that accommodates the diagnostic mechanism part of the device and provides buoyancy to the device;
A storage container having a storage space is formed by the upper transparent and soft see-through portion and the lower rigid body, and the storage container is watertight and filled with fresh water. a fluoroscopy container that constitutes a diagnostic mechanism unit that includes an observer that performs fluoroscopy;
a vertical movement mechanism part constituting a diagnostic mechanism part for vertically moving the container for fluoroscopy;
a turning mechanism part constituting a diagnostic mechanism part for turning the container for fluoroscopy;
a signal/driving cable that is connected to the observation device, the vertical movement mechanism and the rotation mechanism and that is taken out to the outside;
a pulling cable connected to the front and back of the container;
An apparatus for wall survey diagnosis in suspended water, characterized in that it consists of: 2. A wall surface investigation and diagnosis apparatus in suspended water according to claim 1, wherein the see-through portion is made of urethane rubber. 3. The apparatus for investigating and diagnosing a wall surface in suspended water according to claim 1, wherein the vertical movement mechanism and the turning mechanism are driven by air pressure. The vertical movement mechanism is mainly composed of a vertical movement driving part and a guide rod,
The turning mechanism is mainly composed of the rotation driving part,
a support shaft arranged along the central axis in the container and rotatably attached to the structure constituting the container;
A flat plate-shaped base plate interlocked with the support shaft and arranged integrally;
The vertical motion driving unit and the guide rod arranged on the pedestal plate and interposed between the fluoroscopy container,
a rotation drive unit that is attached to a structure that constitutes the container and that rotates the support shaft;
4. The apparatus for wall investigation and diagnosis in suspended water according to any one of claims 1 to 3, characterized in that it consists of: A device used by pressing against a front wall surface in suspended water,
A fluoroscopy container having a storage space inside is formed by the front transparent and soft fluoroscopy portion and the rear rigid body. comprising a forward-facing observatory,
A device for wall surface investigation and diagnosis in suspended water, characterized by:

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