JP6089069B2 - Vertical shaft inspection device and vertical shaft inspection method - Google Patents

Description

  The present invention relates to an inspection device in a shaft and an inspection method in the shaft.

  Conventionally, water collecting shafts 21 for collecting and discharging groundwater that causes landslides have been provided in areas where landslides are likely to occur.

Specifically, the vertical shaft 21 (see FIG. 10) has a diameter of about 3 to 4 m, but a depth of about 20M～60m, in many regions provided about four in the range of about 10000 m ^2.

  The shaft 21 is provided with a plurality of water collecting pipes 27 projecting in a radial direction from the peripheral surface, and the water collecting pipes 27 are arranged at sites where the ground water is easily collected, which has been clarified in advance. Groundwater is collected in the shaft 21 via the pipe 27.

  Further, a drainage pipe 23 is provided at a position below the peripheral surface of the shaft 21, and the drainage pipe 23 is extended to, for example, a river, and the groundwater collected in the shaft 21 is supplied to the river through the drainage pipe 23. Discharged.

  The upper opening 21a of the shaft 21 is closed with a lid 20, and when an operator needs to enter the shaft 21, an entrance / exit 22 provided near the periphery of the lid 20 is provided. Can enter the shaft 21 from

  Reference numeral 20a denotes an open / close lid that closes the entrance / exit 22; 25, a ladder; and 26, a landing.

  By the way, the above-mentioned shaft 21 has abnormalities such as corrosion of the inner wall and clogging of the water collecting pipe 27 over time, so it is necessary to check periodically whether these abnormalities have occurred. The inside of the shaft will be inspected. In this inspection, there is a case where gas is generated in the shaft 21 or the ladder 25 is corroded and may not be used. Therefore, in the initial stage, the operator should check without entering the shaft 21. Yes.

  Therefore, as an inspection device in the water collecting shaft 21, an inspection device in the shaft as disclosed in, for example, Japanese Patent Application Laid-Open No. 2010-281145 has been proposed. In this inspection device, a pedestal is installed at a position above the upper opening 21a of the shaft 21 while straddling the shaft 21, and a camera provided at the tip of a wire suspended from the gantry 21 is provided in a predetermined position in the shaft 21. It is placed at the center of the height, and the inside of the shaft 21 is continuously photographed while horizontally rotating 360 degrees, and an abnormal part is found in the shaft 21 by looking at this photographed image (a panoramic image obtained by combining continuously photographed photograph data). It will be confirmed whether there is.

  However, every time inspection is performed, the lid 20 that closes the upper opening 21a of the shaft 21 must be removed, and this lid 20 has a weight (about 5 tons if it is made of concrete). Every time a huge amount of the shaft 21 is inspected, the heavy lid 20 must be moved using a heavy machine or the like, which is very troublesome and poor in workability.

  Therefore, in order to solve the above-described problems, a shaft inspection apparatus (hereinafter, a conventional example) disclosed in Japanese Patent No. 5635458 has been proposed.

  In this conventional example, as shown in FIG. 10, an attachment portion 30 attached to the lid 20, a rod-like attachment member 31 extending from the attachment portion 30, and one end connected to the camera 34 and wound around the reel portion 35. A guide portion 33 for guiding the wire 32 at the tip of the attachment member 31, and the attachment member 31 passes through the entrance / exit portion 22 provided in the lid body 20 when the attachment portion 30 is attached to the lid body 20. 21 is constructed so as to project obliquely downward into 21.

  Accordingly, the mounting member 31 is arranged from the entrance / exit portion 22 of the lid 20 and the camera 34 is suspended and introduced into the shaft 21, and the inside of the shaft 21 is photographed by the camera 34 to show the corrosion state in the shaft 21 and the like. As a result, the inside of the shaft 21 can be inspected, so that it is not necessary to remove the heavy lid 20 and the above-mentioned problem can be solved.

JP 2010-281145 A Patent No. 5635458

  However, in the conventional example, the attachment portion 30 attached to the lid body 20 has a structure that is attached using the hook-shaped portion 20a ′ protruding from the outer peripheral portion of the lid body 20, and thus the lid body 20 to be attached is limited. In addition, the conventional example has a structure in which the wire 32 is suspended from the guide portion 33 at the tip of the mounting member 31 protruding from the mounting portion 30, but the distance from the mounting portion 30 to the guide portion 33 is long. The load moment acting on the mounting member 31 is large, and therefore the camera 34 suspended by the wire 32 is limited to a lightweight one.

  The present invention provides a practical shaft inspection device and a shaft inspection method that solves the above-described problems and exhibits an unprecedented effect.

  The gist of the present invention will be described with reference to the accompanying drawings.

  When inspecting the shaft 21 in which the upper opening 21 a is closed by the lid 20, the camera 1 is suspended in the shaft 21 from the entrance / exit portion 22 provided near the periphery of the lid 20 and accessible to a person. An apparatus for introducing and photographing the inside of the shaft 21 with the camera 1 to confirm the corrosion state in the shaft 21 and the like, and is attached between the opposed edge portions 22a of the entrance / exit portion 22 in an erected state. The construction member 5 includes a mounting member 2 detachably provided on the construction member 5 and disposed in the shaft 21, and a suspension member 3 provided on the mounting member 2 to suspend the camera 1. The present invention relates to an inspection device in a shaft.

  Moreover, in the inspection apparatus in a shaft according to claim 1, sandwiching connecting portions 5a are provided at both ends of the erection member 5 so as to be sandwiched between the opposing edge portions 22a of the entrance / exit portion 22, respectively. It relates to the inspection device in the shaft.

  Moreover, in the inspection apparatus in a shaft according to any one of claims 1 and 2, the mounting member 2 is slidably provided on the erection member 5 in the inspection apparatus in the shaft. It is concerned.

  Moreover, in the inspection apparatus in a shaft according to any one of claims 1 to 3, the suspension member 3 is stretched between a plurality of pulley portions 4 and suspended in the shaft 21. It relates to the inspection device in the shaft.

  The upper opening 21a is an inspection method in the shaft 21 in which the lid 20 is closed, and the opening / closing lid 20a of the entrance / exit portion 22 provided near the periphery of the lid 20 is opened. Subsequently, the erection member 5 is attached between the opposing edge portions 22a of the entrance / exit part 22, and the attachment member 2 provided detachably on the erection member 5 is disposed in the shaft 21 and provided on the attachment member 2 The camera 1 is in a suspended state through the suspended member 3, and then the corrosion state in the shaft 21 is confirmed by the camera 1.

  Since the present invention is configured as described above, the inside of the shaft can be inspected easily and quickly, and unlike the above-described conventional example, the lid body to be attached is not limited, and attachment to the lid body is possible. It is possible to perform well and excel in workability, and because it has a structure that places less burden on the mounting member, it is not limited to a lightweight camera, such as a revolutionary that demonstrates unprecedented effects It becomes an inspection device in the shaft and an inspection method in the shaft.

It is a description perspective view of the inspection method in a shaft using Example 1. 1 is a perspective view showing Example 1. FIG. 3 is an exploded perspective view of a main part of Example 1. FIG. FIG. 6 is an operation explanatory diagram of a main part of the first embodiment. It is explanatory sectional drawing of the inspection method in a shaft using Example 1. FIG. It is explanatory drawing top view of the inspection method in a shaft using Example 1. FIG. It is a description perspective view of the inspection method in a shaft using Example 2. FIG. 6 is a perspective view showing Example 2. It is explanatory sectional drawing of the inspection method in a shaft using Example 2. FIG. It is explanatory sectional drawing of the inspection method in a shaft using the prior art example.

  An embodiment of the present invention which is considered to be suitable will be briefly described with reference to the drawings showing the operation of the present invention.

  When checking the inside of the vertical shaft 21, the installation member 5 is attached in the installation state between the opposing edge portions 22 a of the entrance / exit portion 22 provided near the periphery of the lid 20, and the attachment member 2 is arranged in the vertical shaft 21. In this state, the inside of the shaft 21 is photographed by the camera 1 suspended by the suspension member 3 suspended from the attachment member 2, and the corrosion state in the shaft 21 is confirmed.

  Therefore, since the inspection is performed using the existing entrance / exit portion 22 provided in the lid body 20 that closes the upper opening 21a of the shaft 21, there is no need to move the lid body 20, and the shaft 21 can be simply and quickly. The inside can be inspected.

  Further, the present invention is configured such that the mounting member 2 is detachable with respect to the erection member 5, and the erection member 2 may be attached to the erection member 5 after the erection member 5 is attached to the entrance / exit 22. Alternatively, the installation member 2 can be attached to the lid body 20 in a state where the operator can easily work, such as attaching the installation member 2 to the entrance / exit portion 22 in advance. It can be done well and has excellent workability. In addition, the configuration in which the attachment member 2 can be freely attached to and detached from the erection member 5 is excellent in workability even when the attachment member 2 is detached.

  In the present invention, the attachment to the lid 20 is a configuration in which the erection member 5 is installed in an erected state between the opposed edge portions 22a of the entrance / exit portion 22, and the lid 20 to be attached is limited unlike the conventional example described above. In addition, since the mounting member 2 can be supported at a position close to the front end portion of the mounting member 2 (the load on the mounting member 2 due to the short distance from the erection member 5 to the front end portion of the mounting member 2). Therefore, even a heavy camera 1 can be hung well.

  A specific embodiment of the present invention will be described with reference to FIGS.

  In the present embodiment, when the inside of the shaft 21 in which the upper opening 21a is closed by the lid 20, the person can enter and exit from the entrance / exit 22 provided near the periphery of the lid 20 into the shaft 21. The camera 1 is a device for suspending the camera 1 and photographing the inside of the shaft 21 with the camera 1 to check the corrosion state in the shaft 21.

  In this embodiment, the water collecting shaft 21 provided in an area where landslide is likely to occur as described in the background art column is adopted as the shaft 21, but if it is a shaft 21 to which this embodiment can be applied. It can be adopted as appropriate. Reference numeral 24 denotes a handrail.

  Specifically, in the present embodiment, the erection member 5 attached in an erected state between the opposing edge portions 22a of the entrance / exit part 22, and the attachment member 2 provided detachably on the erection member 5 and arranged in the shaft 21 And a suspension member 3 that is provided on the attachment member 2 and suspends the camera 1.

  This erection member 5 is a long plate-like body formed of an appropriate metal member as shown in FIGS. 1 to 3, and the front and rear positions of this erection member 5 are opposed edge portions of the entrance / exit portion 22. A sandwiching connecting portion 5a to be sandwiched between each is provided.

  The sandwiching connecting portion 5a includes a sandwiching plate 5a ′ disposed at a vertically opposed position, and a connecting rod 5a ″ (screw rod) that is laid between the sandwiching plates 5a ′ and connects the sandwiching plates 5a ′ so as to be able to contact and separate. Body).

  Therefore, the sandwiching connecting portion 5 can sandwich the sandwiching plates 5a 'by changing the interval between the sandwiching plates 5a' according to the thickness of the part to be sandwiched.

  Further, the erection member 5 is provided with a guide connecting portion 6 for slidably connecting a mounting member 2 described later.

  As shown in FIGS. 2 and 3, the guide connecting portion 6 is a concave body formed of an appropriate metal member, and is inclined (intersects) by a predetermined angle with respect to the length direction of the erection member 5. State).

  Further, the base end portion of the guide connecting portion 6 is provided with a fitting portion 6 a that is fitted on the mounting member 2, and the fitting portion 6 a is fitted on the mounting member 2 disposed on the guide connecting portion 6. The U-shaped fitting member 6a 'is detachably connected to the guide support portion 6 via the fastening member 6b ".

  Therefore, the attachment member 2 can be attached to and detached from the erection member 5 through the fitted portion 6a.

  In addition, a stopper portion 6 b is provided at the distal end portion of the guide connecting portion 6 so as to be engaged with the convex portion 2 a provided on the attachment member 2 and restrict the sliding movement of the attachment member 2 forward.

  In addition, a manual rotation type reel unit 7 around which a suspension member 3 that suspends and holds a camera 1 to be described later is wound is provided at the base end portion of the erection member 5.

  The suspension member 3 is a metal wire, and a connecting ring member 11 (carabiner) that is connected to the camera 1 described later is provided at the lower end. In addition, it is good also as a structure which prevents a horizontal blurring by using all or one part (for example, site | parts vicinity of the camera 1) of the suspension member 3 as a bar (steel material).

  Further, the suspension member 3 is stretched between a plurality of pulley portions 4 provided on the mounting member 2 described later by being sent out from the reel portion 7 and is suspended at a position near the center in the shaft 21.

  Accordingly, the camera 1 is suspended from the center of the shaft 21 via the suspension member 3, and moves up and down in the shaft 21 by the operation of the reel unit 7. In this embodiment, a manually-rotating reel is used as the reel unit 7, but an electric-rotating reel may be used.

  In this embodiment, the suspension member 3 is provided with a lateral blur prevention structure.

  As shown in FIGS. 2 and 4, the lateral blur prevention structure is constituted by a weight body 12 in which a liquid 12 b (water) is movably accommodated in a suitable synthetic resin container 12 a, and the weight body 12 is suspended. It is provided at an intermediate position of the lowering member 3 (a position near the camera 1).

  Therefore, the shift of the center of gravity with respect to the shaking of the camera 1 positioned below the weight body 12 can be eliminated by the weight body 12 (movement of the liquid 12b), thereby preventing lateral blurring of the camera 1.

  The mounting member 2 is a rectangular bar-shaped body formed of a suitable metal member as shown in FIGS. 1 to 3, and a convex portion 2 a that is locked to a stopper portion 6 b provided in the guide connecting portion 6 at the center portion. Is provided so as to be slidable on the guide connecting portion 6 of the erection member 5 described above.

  Further, a pulley portion 4 is provided at the central portion and the tip portion of the mounting member 2, and a suspension member 3 fed from a reel portion 7 is stretched over the pulley portion 4.

  Further, the attachment member 2 is provided in an inclined state through the entrance / exit portion 22 and into the shaft 21 in a state where the erection member 5 is attached to the entrance / exit portion 22 of the lid 20.

  The length of the attachment member 2 is set to a length at which a later-described suspension member 3 can be suspended at a position near the center of the shaft 21. The mounting member 2 may be extendable and retractable.

  Reference numeral 2b denotes a gripping portion.

  As shown in FIG. 2, the camera 1 is configured by providing a camera unit 1 </ b> A and an illumination unit 1 </ b> B on a base body 9 provided with a suspension connection portion 10 that is connected to the lower end of the suspension member 3.

  As shown in FIG. 2, the suspension connecting portion 10 includes a first member 10a which is provided on the base 9 via a drive motor (not shown) so as to be movable up and down, and a drive motor (not shown) on the first member 10a. The first member 10a and the second member 10b are configured to be remotely operated by remote control operation.

  Accordingly, the base 9 can be swung in the vertical direction (arrow a direction in FIG. 2) and can be rotated 360 degrees in the horizontal direction (arrow b direction in FIG. 2), so that the camera unit 1A and the illumination unit 1B can be swung. The horizontal rotation is possible. Reference numeral 10 b ′ is a ring member that detachably connects a connecting ring member 11 (carabiner) provided at the lower end of the suspension member 3.

  The camera unit 1A has a still image shooting function and a moving image shooting function, and is connected to the tablet terminal by wifi. With this tablet terminal, power ON / OFF, still image shooting and movie shooting You can remotely control the switching and start and end of shooting.

  The illumination unit 1B mainly illuminates a part to be imaged by the camera unit 1A, and is configured to be remoted by a remote control operation.

  The inspection method in the shaft 2 using the inspection device in the shaft having the above configuration will be described.

  An inspection device is attached to the entrance / exit part 22 of the lid 20.

  Specifically, the opening / closing lid 20a that closes the entrance / exit portion 22 of the lid 20 is opened, and the sandwiching connection portions 5a provided at both front and rear ends of the erection member 5 are sandwiched and connected to the opposing edge portions 22a of the entrance / exit portion 22, respectively. Then, the attachment member 2 is connected to the erection member 5. At this time, in a state where the suspension member 3 is stretched on the pulley portion 4 of the attachment member 2, the distal end portion of the attachment member 2 is arranged inside the shaft 21 so as to be embedded inside the lid body 20. Thereafter, the reel portion 7 is connected to the rear end portion of the erection member 5. The attachment member 2 may be attached to the entrance / exit portion 22 in a state where the attachment member 2 is attached to the installation member 5 in advance.

  Subsequently, in this state, the reel unit 7 is rotated to lower the suspension member 3 and the camera 1 is suspended and introduced, and the camera 1 is appropriately rotated in the vertical and horizontal directions to move inside the shaft 21. A photograph is taken, and the corrosion state in the shaft 21 is confirmed based on images and moving pictures taken by the camera 1 (see FIGS. 5 and 6). At the time of this inspection, the position of the camera 1 may be adjusted by sliding the mounting member 2 with respect to the installation member 5.

  Since the present embodiment is configured as described above, since the inspection is performed using the existing entrance / exit portion 22 provided in the lid 20 that closes the upper opening 21a of the shaft 21, the lid 20 is moved. There is no need, and the inside of the shaft can be inspected easily and quickly. Unlike the above-described conventional example, the lid 20 to be attached is not limited, and it can be attached to the lid 20 satisfactorily. In addition, the heavy camera 1 can be satisfactorily suspended because of the structure with less burden on the mounting member 2.

  Further, in the present embodiment, since the sandwiching connecting portions 5a that are sandwiched between the opposing edge portions of the entrance / exit portion 22 are provided at both ends of the erection member 5, the inspection device can be easily and securely attached and fixed. it can.

  In this embodiment, since the mounting member 2 is slidably provided on the erection member 5, the position of the camera 1 can be adjusted and the inspection can be satisfactorily performed.

  A specific embodiment of the present invention will be described with reference to FIGS.

  In this embodiment, the mounting member 2 is detachably provided to the erection member 5 via another type of mounting structure.

  Specifically, as shown in FIGS. 7 to 9, an appropriate metal columnar connecting member 13 is provided, and the lower end portion of the connecting member 13 is located near the center of the mounting member 2 via the fastening member 14. It is pivotally attached in a removable manner.

  Therefore, the columnar connecting member 13 is slid relative to the mounting member 2 to be in a compact folded state.

  Further, a construction material 15 is provided between the base end portion of the attachment member 2 and the upper end portion of the columnar connecting member 13, and in the state where this construction material 15 is installed, it is attached to the columnar connection member 13. The member 2 is prevented from swinging, and in a state where the erection of the erection member 15 is released, the columnar connecting member 13 is oscillated with respect to the attachment member 2 to be in a compact folded state.

  The columnar connecting member 13 is detachably provided at its center with respect to the erection member 5 via a fastening member 14, and the mounting member 2 is connected to the erection member 5 via the columnar linking member 13. It is comprised so that it may be connected in a substantially parallel state.

  The columnar connecting member 13 is provided with a pulley portion 4, and the suspension member 3 is stretched in a bent state on the pulley portion 4 of the columnar connecting member 13 and the pulley portion 4 of the mounting member 2.

  The rest is the same as in Example 1.

  The present invention is not limited to the first and second embodiments, and the specific configuration of each component can be designed as appropriate.

DESCRIPTION OF SYMBOLS 1 Camera 2 Mounting member 3 Hanging member 4 Pulley part 5 Construction member 5a Clamping connection part
20 lid
21 shaft
21a Upper opening
22 Gateway
22a Opposing edge

Claims (5)

  When inspecting the shaft in which the upper opening is closed by the lid, a camera is suspended and introduced into the shaft from an entrance / exit portion provided near the periphery of the lid so that the person can enter and exit. A device for confirming the corrosion state of the shaft by photographing the shaft, and a detachable member installed between the opposing edges of the entrance / exit portion and the detachable member. An inspection device in a shaft, comprising: a mounting member disposed in the shaft and a suspension member provided on the mounting member to suspend the camera.   2. The inspection apparatus for a shaft according to claim 1, wherein sandwiched connecting portions are provided at both ends of the erection member so as to be sandwiched between opposing edges of the entrance / exit part. .   The inspection apparatus in a shaft according to any one of claims 1 and 2, wherein the attachment member is slidably provided on the erection member.   The inspection apparatus in a shaft according to any one of claims 1 to 3, wherein the suspension member is stretched between a plurality of pulleys and is suspended in the shaft. Inspection equipment.   A method for inspecting a shaft in which an upper opening is closed with a lid, which opens and closes an opening / closing lid of an entrance / exit that is provided near the periphery of the lid, and A mounting member is attached between the opposing edges, and a mounting member that is detachably provided on the mounting member is disposed in the shaft, and the camera is suspended through the hanging member provided on the mounting member. A method for checking the inside of a shaft, wherein the state of corrosion in the shaft is confirmed by this camera.

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