JP3079392B2 - Cleaning inspection device and inspection method for inspection surface in liquid - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cleaning inspection apparatus and a cleaning inspection method for cleaning and inspecting a surface of a structure such as a wall surface located in a liquid, particularly an opaque liquid such as a stabilizing liquid or muddy water.

[0002]

2. Description of the Related Art Conventionally, as a method for cleaning and inspecting a wall surface and a partition plate surface in an opaque liquid such as a stabilizing solution or muddy water, first, a deposit on the partition plate surface is removed by a mechanical scraping device. After removing the scraping device, inspection is performed using an ultrasonic groove wall measuring instrument or diver.

[0003]

Problems to be Solved by the Invention There are the following problems in the above-mentioned conventional device. <A> If an adhering substance to be removed is found during the inspection, a removal operation must be performed by installing a scraping device again. <B> In the case of an ultrasonic groove wall measuring device, when a thin mud film is formed on an inspection surface, accurate measurement is difficult. In addition, it is difficult to measure the corners and it is difficult to measure accurately. <C> When a diver goes underground and gropings to investigate, there are problems with safety, workability, etc., such as in narrow inspection places and dangerous places.

[0004]

The object of the present invention is to provide an apparatus and a method capable of reliably cleaning and inspecting the surface of an object such as a wall surface in a liquid, in particular, an opaque liquid or flowing material such as muddy water. It is in.

[0005]

Means for Solving the Problems In a cleaning and inspection apparatus for cleaning an inspection surface located in a liquid, a waterproof and movable imaging device is disposed between the imaging device and the inspection surface. It has a flexible transparent sheet which is movable and can be filled with a transparent fluid therein, and a movable cleaning means for cleaning the inspection surface, wherein the cleaning means cleans the inspection surface as necessary. A cleaning inspection device for a submerged inspection surface, wherein the transparent sheet is brought into close contact with an inspection surface, an adhesion portion of the inspection surface is photographed by the photographing means, and the inspection surface is inspected. In the way.

[0006]

As an example, the inspection surface is cleaned by a mechanical means such as a cleaning jet nozzle or a wire brush installed toward the inspection surface side, and at the same time, the transparent sheet filled with the transparent fluid is inspected. It is possible to make a close contact with the surface, photograph the close contact portion with a video camera, and perform an inspection.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows the overall configuration of the inspection system. FIG. 2 is a front view of the apparatus seen from the partition plate side in FIG. FIG.
FIG. 2 is a plan view near a jet nozzle in FIG. 1. As an example of the inspection object, there is an inspection surface d of the partition plate c provided in the excavation groove b excavated in the ground a. After one side of the partition plate c is filled with concrete f and the other side is filled with a stable liquid or muddy water g, the inspection surface d is inspected for unevenness or cracks. Attachment e on inspection surface d
May need to be cleaned.

Hereinafter, a cleaning inspection apparatus used for cleaning and inspection will be described. <B> Storage Casing The storage casing 3 is a box made of steel or synthetic resin. The surface of the box on the side of the inspection surface d of the partition plate is opened, and a transparent sheet 7 for inspection described later is attached to the box, thereby forming a closed structure. The storage casing 3 has a pressurizing pump 12 via a fresh water supply hose 11 for supplying fresh water.
Is attached. Further, a signal / control cable 1 is used to observe and inspect the state of the partition plate inspection surface d.
0, a video deck, a monitor screen, and a controller 13 are connected. Further, an elevating device 9 is connected to an upper portion of the storage casing 3, and for example, a crane / winch or the like on the ground is connected via a wire rope or the like, and can move up and down on the partition plate c surface.

<B> Video Camera The video camera 2 is installed in the storage casing 3 so as to face the partition plate c, and is configured to be able to swing up, down, left and right. Alternatively, it may be configured to be able to move parallel to the inspection surface d. The video camera mentioned here may be any photographing device as long as it is a device capable of projecting a wall surface. The video camera 2 is housed in a pressure-resistant case 31 and has a waterproof structure. In the pressure-resistant case 31,
Install an underwater light (not shown). Or,
This underwater light may be located at an appropriate position outside the pressure-resistant case.

<C> Inspection Transparent Sheet The inspection transparent sheet 7 uses a water-resistant transparent bag, is attached to the open portion of the storage casing 3 on the inspection surface d side, and seals the storage casing 3. I have. The inspection transparent sheet 7 is formed of a flexible member such as vinyl, polyethylene, or synthetic resin so as to follow the shape of the corner portion of the inspection surface d or the like well and to be in close contact therewith. A pressure pump 12 is provided in the inspection transparent sheet 7 and the storage casing 3.
The clear water 6 with high transparency through the fresh water supply hose 11
Is filled.

<D> Jet Pump The jet pump 4 is arranged in the jet pump casing 5 below the storage casing 3. It is used to further pressurize the fresh water sent by the ground pressure pump 12.

<E> Jet Nozzle The jet nozzle 8 is arranged to face the inspection surface d so as to be capable of jetting. The number of the jet nozzles 8 required for cleaning is installed in the jet water header pipe 52 on the cleaning surface side. The jet nozzle 8 jets clean water pressurized by the jet pump 4 through a jet water supply pipe 51 and a jet water header pipe 52 to clean the deposit e.

Next, a cleaning inspection method will be described. <B> Movement of the device The cleaning inspection device 1 lowers and raises the partition plate c surface with a crane, winch or the like on the ground via a wire rope or the like. When the cleaning inspection device 1 is moved to the cleaning or inspection position, the device is fixed. Fixation is performed by any suitable means. For example, the device 1 may be fixed on a rail (not shown), or the inspection transparent sheet 7 may be provided with a width equal to the width of the groove b, filled with fresh water, expanded, and inspected. The transparent sheet 7 may be pressed against the left and right wall surfaces and fixed.

<B> Cleaning Method The fresh water supplied by the pressure pump 12 on the ground is further pressurized by the jet pump 4. The pressurized fresh water is sent to the jet nozzle 8 via the jet water supply pipe 51 and the jet water header pipe 52. The jet nozzle 8 jets jet water onto the cleaning surface to remove the deposit e.

<C> Inspection method At a predetermined inspection position, the inspection transparent sheet 7 is filled with fresh water by the pressure pump 12, and the inspection transparent sheet 7 is expanded. As a result, the inspection transparent sheet 7 becomes the inspection surface d.
Muddy water between the inspection surface and the inspection transparent sheet
Is eliminated. The view of the inspection surface d of the video camera 2 is not obstructed by the muddy water g, and only the transparent sheet 7 and the highly transparent clear water 6 exist in the view of the video camera 2. Therefore, the video camera 2 can clearly photograph the inspection surface d. The video from the video camera 2 is sent to the video deck and the monitor screen 13 via the signal / control cable 10 to be recorded and inspected. The controller 13 performs various controls such as turning the video camera 2 to a desired inspection position. In addition, the controller 13 can perform control such as control of cleaning of jet water or the like, control of an elevating device, and the like. If the deposit e is found during the inspection, the jet nozzle 8 is adjusted to the position of the deposit by the above-described cleaning method, and the deposit is removed by jet spraying.

[0016]

According to the present invention, as described above, the following special effects can be obtained. <B> Cleaning and inspection of the wall surface in the opaque liquid can be reliably performed. <B> By integrating the cleaning device and the inspection device,
Since the state of removal of the deposits on the wall surface can be inspected in parallel with the cleaning, it is possible to immediately cope with an insufficient place to be removed, thereby improving workability and reliability. <C> Visual confirmation and judgment can be performed, and highly accurate inspection can be performed. <D> Conventionally, inspection can be performed on a test surface such as a corner portion, which has been almost impossible to inspect, so that a blind spot of the inspection can be eliminated.

[Brief description of the drawings]

FIG. 1 is an overall view of an apparatus.

FIG. 2 is a front view of the device.

FIG. 3 is a plan view of the device.

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-5-196428 (JP, A) JP-A-5-196429 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) G01B 11/00-11/30 E02D 5/18

Claims (2)

(57) [Claims] 1. An apparatus for cleaning and inspecting an inspection surface located in a liquid, comprising: a waterproof, movable imaging means; and a movable imaging means disposed between the imaging means and the inspection surface, and movable in accordance with the imaging means; It has a flexible transparent sheet that can be filled with a transparent fluid inside, and a movable cleaning unit that cleans the inspection surface. The inspection unit cleans the inspection surface as necessary by using the cleaning unit. A cleaning inspection device for a submerged inspection surface, wherein the inspection surface is inspected by bringing the inspection portion into close contact with the inspection surface, photographing the contact portion of the inspection surface with the photographing means. 2. A method for cleaning and inspecting an inspection surface located in a liquid, comprising: arranging a waterproof imaging means on a predetermined inspection surface; and optionally, cleaning the inspection surface by a cleaning means coupled to the imaging means. Removing the adhering matter, and bringing a flexible transparent sheet, which is disposed between the photographing means and the inspection surface and filled with a transparent fluid therein, into close contact with the inspection surface; A step of photographing and inspecting the image by the photographing means, and a method of cleaning and inspecting the inspection surface.