JP2779608B2 - Inspection device inside the tunnel - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a technical field related to an inspection device for inspecting various disaster prevention devices and the like installed on a wall inside a tunnel in which a vehicle travels.

[0002]

BACKGROUND ART Conventionally, as an inspection device inside a tunnel, for example, a device in which various inspection devices for inspecting disaster prevention devices and the like are mounted on a small work vehicle is known. In this conventional inspection device inside the tunnel, the worker drives down the lane to the place where the disaster prevention equipment etc. inside the tunnel is installed on the wall, stops at that location, and the worker operates the inspection device In this case, the inspection is carried out. In the above-described conventional inspection device for the inside of a tunnel, since a small work vehicle is stopped to perform the inspection work, there is a problem that one lane is closed during the inspection work. Furthermore, since the worker must travel to the site and operate the inspection equipment, there is a problem that the working environment of the worker is poor in terms of sanitation of exhaust gas and dangers such as traffic in an adjacent lane. .

[0003]

2. Description of the Related Art In order to solve the above-mentioned problems, a rail for a robot as disclosed in Japanese Patent Application Laid-Open No. 7-75980 has been proposed. This robot rail is
A rail laid as a traveling path for a robot that performs maintenance work on a plurality of lighting fixtures installed at predetermined intervals in a tunnel, and is a rail on the same table as a stand supporting the lighting fixtures installed at predetermined intervals. Is laid like a bridge, and while keeping the relative relationship with the lighting fixtures constant on this rail,
A robot which performs supplementary maintenance work of the lighting equipment is provided so as to be able to travel. According to such a robot rail,
Although a certain effect is recognized for the maintenance work of a large number of lighting fixtures installed in the tunnel, in the tunnel other than the lighting fixtures, for example, a carbon dioxide (CO ₂ ) sensor,
Since a large number of devices to be inspected such as sensors of automatic fire detectors and sprinklers are arranged, there is an inconvenience that it is not possible to perform maintenance work on the devices to be inspected other than these lighting fixtures. FIG. 6 of JP-A-7-75980 discloses a prior art to which the present invention is directed. In this prior art, a robot mounted on a work vehicle traveling on an inspection work passage provided on a side surface of a tunnel performs maintenance work such as cleaning and replacement of lighting fixtures installed along a tunnel wall surface. Things. As in the prior art, similarly to the above, maintenance work cannot be performed on inspected equipment other than lighting equipment.

The present invention has been made in view of the above problems, and has as its object to provide an inspection device inside a tunnel capable of performing various inspection operations by remote control without closing a lane. I do.

[0005]

The object of the present invention is to provide a traveling wheel that travels on a road surface near a road shoulder, a driving unit that drives the traveling wheel, and a sway that rotates and moves along a sway rail disposed on the shoulder. The truck has a bogie on which rollers and guide rollers rotatably moving along a traveling direction guide rail provided on a wall surface or a ceiling surface are supported, and the bogie has a frame mounted on a surface extending in the traveling direction in a window frame shape. This is achieved by providing various inspection devices using the frame. The above object is achieved by claim 1 in which various inspection devices are movably mounted in a bogie traveling direction and a vertical direction using a frame. The above object is achieved according to claim 1 or 2 in which the guide roller of the carriage is suspended from the traveling direction guide rail. The above object is achieved by claim 1, 2 or 3 wherein the inspection equipment comprises monitoring means, inspection equipment operation means and inspection means. The above object is achieved by claim 1, 2, 3, or 4 in which the driving means for driving the traveling wheels of the bogie and various inspection devices are operated by remote control.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of a device for inspecting the inside of a tunnel according to the present invention will be described with reference to the drawings. FIG. 1 is a front view showing an embodiment of a tunnel interior inspection device according to the present invention, FIG. 2 is a perspective view in use, FIG. 3 is an enlarged side view of FIG. 1, and FIG. 4 is an enlarged vertical sectional view of FIG. FIG. 5 is an enlarged vertical sectional view of FIG.

In this embodiment, a trolley 1 is provided with a remotely operated inspection device including a camera device 2, a door opening / closing device 3, a circuit inspection device 4, and the like.
The cart 1 has a frame 11 made of a square pipe material assembled in a window frame shape. The frame 11 includes two vertical frames 111 and a horizontal frame 112 connected in a quadrangular shape, a short running wheel support frame 113 provided at a lower portion of the vertical frame 111 so as to protrude outward (in the lane side), and a vertical frame 111. A corner plate 114 fixed between the frame 111 and the horizontal frame 112, and a corner plate 11 fixed between the vertical frame 111 and the traveling wheel support frame 113
5 The corner plates 114 and 115 are connected to the vertical frame 111 and the horizontal frame 112 and are connected to the vertical frame 1.
11. The connection of the traveling wheel support frame 113 is strengthened. The traveling wheel mechanism 12 is attached to each of the traveling wheel support frames 113 of the frame 11 of the bogie 1. The traveling wheel mechanism 12 includes the traveling wheel support frame 1
The traveling wheel receiver 121 is supported by the rotatable member 13 so as to be rotatable in the horizontal direction and is elastically urged downward by a spring material (not shown).
And the axle 12 rotatably supported by the traveling wheel receiver 121.
2 and two traveling wheels 123 fixed to the axle 122 and rotating on the road surface R to move the frame 11 of the bogie 1. The running wheel receiver 121 rotates in the horizontal direction to enable the running of the running wheel 123 corresponding to the curvature of the tunnel T, and keeps the running wheel 123 in contact with the road surface R by the urging force to maintain the ground surface R. Enables rotational running corresponding to unevenness of the surface. The two running wheels 123 stabilize the running posture. The traveling wheel mechanism 12 attached to the traveling wheel support frame 113 on the front (right side in FIG. 1) is a traveling driven side composed of only the above-described components. On the contrary,
The traveling wheel mechanism 12 attached to the traveling wheel support frame 113 at the rear (left side in FIG. 1) includes a motor 124, a cyclo reducer 125, and a sprocket 12
6, 127, and a chain 128 are connected to a traveling drive side. This drive system has a structure in which forward and reverse rotations can be switched by remote control, so that the rotation of the traveling wheels 123 can be freely controlled. Further, the motor 124 of the drive system, the cyclo reducer 12
5 is supported by a traveling wheel receiver 121 so as to enable the traveling wheel 123 to rotate in a horizontal direction and an integral rotation. Further, the drive system sprockets 126 and 127 and the chain 128 are covered with a chain cover 129 so that dust and the like are not involved and the driving force is not attenuated or lost.

The vertical frame 111 of the frame 11 of the carriage 1
The anti-vibration roller mechanisms 13 are attached to the lower ends of the. The anti-vibration roller mechanism 13 includes a pair of axles 131 protruding downward and fixed to the lower end of the vertical frame 111.
And a swing roller 132 rotatably supported by the axle 131 and swinging along the swing rail 5 by swinging the frame 11 across the swing rail 5 from both sides. Note that the vibration-prevention rail 5 is formed of an L-shaped steel material disposed along the road surface R of the road shoulder S. Frame 1 of trolley 1
A guide roller mechanism 14 is attached to the upper end of each of the vertical frames 111. Guide roller mechanism 14
Are a roller receiver 141 supported by the vertical frame 111 so as to be rotatable in the horizontal direction, and having a spring material (not shown) for urging the vertical frame 111 upwardly in a vertical direction.
A guide roller 142 is rotatably supported on two sides of one side and four on both sides, and rotatably moves along the traveling direction guide rail 6 with the traveling direction guide rail 6 sandwiched from both sides. This roller receiver 141 rotates in the horizontal direction to enable the rotational movement of the guide roller 142 corresponding to the curvature of the tunnel T, and maintains the suspended state of the frame 11 by the elastic pressure pulling bias, so that the frame 11 To prevent falling off. In addition, the traveling direction guide rail 6 is formed of an I-shaped rope material disposed on the ceiling surface D immediately above the vibration-prevention rail 5.

The camera device 2 as an inspection device is provided between the upper and lower horizontal frames 112 of the frame 11 of the carriage 1. The camera device 2 includes a ball screw 21 and a guide shaft 22 that are vertically arranged in parallel between horizontal frames 112, and a servo motor 2 that rotationally drives the ball screw 21.
3, a slider 24 having a ball nut screwed into the ball screw 21 and a sleeve fitted to the guide shaft 22 and moving up and down along the ball screw 21 and the guide shaft 22, and supported by the slider 24 so that the elevation angle can be adjusted. And a servo motor 26 supported by the slider 24 to adjust the elevation angle of the camera 25. The camera device 2 captures an image of a device to be inspected M such as a disaster prevention device installed on the side wall W of the tunnel T by the camera 25 that moves between the upper and lower horizontal frames 112 and is adjusted in elevation. It is also possible to take an image of a crack on the side wall W of the tunnel T. This photographed image information is transmitted by an appropriate means.

A door opening / closing device 3, which is another inspection device, is provided between a vertical frame 111 behind the frame 11 of the bogie 1 and a horizontal frame 112 below. The door opening and closing device 3 includes a rear vertical frame 111 and a lower horizontal frame 1.
A block body 3 having a gantry 31 arranged between the gantry 12, a rail 32 arranged on the gantry 31, wheels 331 running on the rail, and a rack 332 projecting rearward.
3 and a vacuum section 34 provided in the block body 33
A fixing plate 36 fixed to the rear vertical frame 111 and provided with a guide roller 35 for guiding the rack 332;
It comprises a servomotor 37 supported by a fixed plate 36 and a gear 38 fixed to the servomotor 37 and meshing with a rack 332. The vacuum section 34 includes a vacuum pad 341 connected to a vacuum pump (not shown) facing the side wall W of the tunnel T, a support plate 342 supporting the vacuum pad 341, a rack 343 fixed to the support plate 342, and a block. A servo motor 344 supported by the body 33 and a rack 343 fixed to the servo motor 344;
, A guide shaft 346 that guides the movement of the support plate 342, and a stopper 347 that regulates the movement range of the support plate 342. This door opening / closing device 3
The door of the device to be inspected M is sucked and removed by the vacuum pad 341 of the vacuum section 34, and is moved to a position away from the device to be inspected M by the movement of the block body 33. The inspection target device M with the door removed is photographed by the camera device 2 and is subjected to a circuit inspection by a circuit inspection device 4 described later.

Circuit inspection equipment 4 which is another inspection equipment
Is mounted on a vertical frame 111 behind the frame 11 of the cart 1. The circuit inspection device 4 is a device to be inspected M
Connector 41 connected to the inspection terminal of
1 is supported by the rack 42 and the rear vertical frame 111
A fixed plate 44 provided with a guide roller 43 for guiding the rack 42 and fixed thereto, a servomotor 45 supported by the fixed plate 44, and a rack 42 fixed to the servomotor 45
And a gear 46 that meshes with the gear. The circuit inspection equipment 4 moves the connector 41 and connects it to the inspection terminal of the equipment M to be inspected, and performs a circuit inspection of the equipment M to be inspected.

In the embodiment configured as described above, the power cable is led to perform the inspection work.
To run. The traveling of the truck 1 is a smooth traveling corresponding to the curvature of the tunnel T and the unevenness of the road surface R as described above. Then, due to the arrangement of the vibration-prevention rail 5 and the traveling direction guide rail 6, the traveling line of the bogie 1 is along the road shoulder. In addition, due to the structure of the frame 11 of the bogie 1, the vehicle does not project much toward the lane (road surface R) during traveling. Therefore, it is not necessary to close the lane of the tunnel T.

In the inspection work position, the carriage 1 is stopped, and the above-described inspection work is performed. The stop of the carriage 1 can be easily detected by, for example, using a configuration in which a mark is provided on the anti-vibration rail 5 and detected by appropriate means. In addition, the carriage 1 can be finely moved in the front-rear direction to correct the stop position and assist the movement and scanning of the inspection equipment. Further, since the space for moving and scanning the inspection equipment is secured inside the frame 11 of the trolley 1, the inspection equipment does not protrude much to the lane (road surface R) side, so that it is not necessary to close the lane of the tunnel T. Become. In addition, such an inspection work can be performed without a worker's on-site business trip by guiding the control cable or performing wireless control.

As described above, in addition to the illustrated embodiment, the traveling guide rail 6 can be provided on the wall surface W of the tunnel T. Furthermore, it is also possible to equip devices other than the camera device 2, the door opening / closing device 3, and the circuit inspection device 4 as inspection devices.

[0015]

In the illustrated embodiment described above, assuming that the height from the road surface R to the ceiling surface D of the tunnel T is 4700 mm, the traveling wheels 123 of the front and rear traveling wheel mechanisms 12 are used.
Is set to 3000 mm, and the frame 11 of the trolley 1 is set.
Is preferably a 150 mm square pipe material.

[0016]

As described above, according to the configuration of the present invention,
The following effects can be obtained. (A) The truck travels along the shoulder of the road, and the truck does not protrude to the lane side, and the space for moving and scanning the inspection equipment is secured inside the frame of the truck. It has the effect of not having to close. (B) Space for moving the inspection equipment, scanning, etc. is secured inside the frame of the bogie, and the operation of the inspection equipment can be reliably performed. There is an effect that the operation can be surely performed by remote control. (C) There is an effect that the stop position of the carriage can be finely adjusted. (D) It is possible to prevent an unexpected fall of the frame of the cart.

[Brief description of the drawings]

FIG. 1 is a front view showing an embodiment of a tunnel interior inspection device according to the present invention.

FIG. 2 is a perspective view of the use state of FIG.

FIG. 3 is an enlarged side view of FIG. 1;

FIG. 4 is an enlarged vertical sectional view of FIG.

FIG. 5 is an enlarged cross-sectional view of FIG.

[Explanation of symbols]

 Reference Signs List 1 cart 2 camera equipment (inspection equipment) 3 door opening / closing equipment (inspection equipment) 4 circuit inspection equipment (inspection equipment) 11 frame 123 running wheel 132 vibration-reducing roller 142 guide roller D ceiling surface R road surface S road shoulder T tunnel W wall surface

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁶ , DB name) E21F 17/00 E21F 11/00

Claims (5)

(57) [Claims] A traveling wheel traveling on a road surface near a road shoulder,
Driving means for driving the traveling wheels, a vibration-preventing roller that rotates and moves along a vibration-reducing rail provided on a road shoulder, and a guide roller that rotates and moves along a traveling-direction guide rail disposed on a wall surface or a ceiling surface. And an inspection device inside the tunnel, characterized in that a frame is mounted in a window frame shape on a surface extending in the traveling direction, and various inspection devices are equipped using the frame. . 2. A tunnel interior inspection device according to claim 1, wherein various inspection devices are mounted movably in a truck traveling direction and a vertical direction using a frame. 3. The inspection device according to claim 1, wherein the guide roller of the bogie is suspended from a traveling direction guide rail. 4. The inspection device according to claim 1, wherein the inspection device comprises a monitoring device, a device to be inspected, and an inspection device. 5. A tunnel interior inspection device according to claim 1, wherein the driving means for driving the traveling wheels of the bogie and various inspection devices are operated by remote control.