JP2000297422A - Tunnel inspection vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tunnel inspection vehicle capable of promoting work efficiency and safety of inspection in a tunnel with a narrow diameter. SOLUTION: This tunnel inspection vehicle is so constituted that a driving wheel 3 rotated by a motor, a steering wheel 7 turning by a handle 6 capable of being operated by hand or foot and a brake 5 used in the case of stopping are provided in a flat truck 1 capable of getting thereon even in any state when a person is in a state to lie prone and recline thereon. The driving wheel 3 can be directly connected to a driving shaft of a geared motor 2, and the driving wheel 3 can be used as a single wheel. At least one truck 20 having no driving wheel can be connected in a pullable manner.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention particularly relates to an inspection vehicle for inspecting a tunnel (waterway) of a size that cannot be stood by humans for guiding water from a river upstream to a power plant in hydroelectric power generation.

[0002]

2. Description of the Related Art As one form of hydroelectric power generation equipment, as shown in FIG.
Is installed, guided to the penstock 33, the water wheel of the power plant 34 is turned to generate power, and water is discharged from the water discharge channel 35 to the river 31. The surroundings of the waterway tunnel 32 are formed of concrete walls, and it is necessary to periodically check whether the walls are damaged or not by hitting them visually or with a hammer.

[0003]

This inspection work is usually performed manually, but the height of the waterway tunnel is 70 cm.
Since there is a length of about 130 cm and a length of about 5 km, it is extremely severe for a worker to move forward while bending or walking. In order to improve such work, a bogie on which a worker rides and runs manually is provided, but there is a problem that a burden on the work vehicle is large. Therefore, an object of the present invention is to improve the workability and safety of inspection in a tunnel having a small diameter.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, a tunnel inspection vehicle according to the present invention comprises a flat bogie on which a person can ride in either a prone state or a backrest state. It is provided with wheels, steered wheels whose direction is changed by a handle that can be steered by foot or hand, and a brake used when stopping.

[0005] The structure of the drive wheels can be simplified by being directly connected to the drive shaft of the geared motor. Also, by using one drive wheel,
The weight of the carriage can be reduced without increasing the width thereof. Further, by adopting a configuration in which at least one bogie having no drive wheels is connected to be able to be towed, it is possible to travel with a plurality of workers and luggage.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be specifically described below with reference to embodiments shown in the drawings. FIG.
Is a side view showing an embodiment of the present invention, and FIG. 2 is a plan view thereof.

In these figures, 1 is a driving bogie, 2 is a geared motor capable of rotating forward and reverse, 3 is a driving wheel, 4 is a battery, 5 is a brake, 6 is a steering wheel, 7 is a steering wheel,
Reference numeral 8 denotes a handle shaft, 9 denotes an interlocking link for interlocking the handle shaft 8 and the steering wheel 7, 10 denotes a seat recess, 11 denotes a cover that becomes a cover for the seat recess 10 when closed, and a plate that becomes a backrest when fully opened, and 12 denotes a connection. A bracket, 20 is an auxiliary carriage that can be folded in two around a hinge 21, 22 is a caster-type front wheel, 23 is a rear wheel, 24 is a backrest that can be raised and lowered, and 25 is a rod that fixes the backrest 24 in a raised state. . Although FIGS. 1 and 2 show an example in which one auxiliary vehicle 20 is connected, two or more auxiliary vehicles 20 may be connected.

In this embodiment, the handle 6 has only one fulcrum, and has a structure utilizing a lever (an interlocking link 9).
When the steering wheel 6 is released, the steered wheels 7 are automatically straightened, thereby giving an advantage to straight running. Further, the handle 6 has a structure in which one handle can be shared by both postures so that the handle can be operated by a foot in a sitting posture and by a hand in a prone posture.

The drive truck 1 has a three-wheel structure with two steering wheels and one drive wheel. If the drive wheels are made thicker to increase the traction force, the width of the truck becomes wider if the drive wheels are two wheels. , To prevent the mechanism from becoming large,
It is narrower, lighter, and portable. The members were also made lighter by using aluminum pipes and plates.

When performing inspection work in a narrow waterway tunnel, if the ceiling of the tunnel is high, ride on the driving trolley 1 and the auxiliary trolley 20 in a sitting posture, visually inspect the wall surface with a hammer, If it does, work in a prone position. The steering of the driving trolley 1 is performed by a foot in a sitting posture and by a hand in a prone posture. Switching between forward and backward and brake operation can be performed by hand.

[0011]

As described above, according to the present invention, the following effects can be obtained. (1) By adopting the electric cart, the vehicle can automatically move forward and backward without using human power, and can work in a harsh environment with a comfortable posture. (2) Since it is electrically driven, there is no generation of exhaust gas and the like, and it is safe. (3) Since the handle is a dual-purpose handle that can be operated by foot or hand according to the posture, the structure is simplified and the weight can be reduced. (4) By adopting a configuration in which the drive wheels are directly connected to the drive shaft of the geared motor, the structure can be simplified. (5) By using a single drive wheel, the weight of the truck can be reduced without increasing the width of the truck. (6) By adopting a configuration in which at least one bogie having no drive wheels is connected so as to be towed, it is possible to travel with a plurality of workers and luggage mounted thereon.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of the present invention.

FIG. 2 is a plan view showing an embodiment of the present invention.

FIG. 3 is a schematic view showing one embodiment of a hydroelectric power generation facility.

[Explanation of symbols]

1 drive trolley, 2 geared motor, 3 drive wheels, 4
Battery, 5 brakes, 6 steering wheels, 7 steering wheels,
8 handle shaft, 9 interlocking link, 10 seat recess, 1
1 plate, 12 connecting fittings, 20 auxiliary trolley, 21
Hinge, 22 front wheels, 23 rear wheels, 24 backrest, 2
5 rods, 31 rivers, 32 water tunnels, 33
Penstock, 34 power plant, 35 spillway

Claims (4)

[Claims] 1. A flat carriage on which a person can ride in either a prone state or a backrest state, a driving wheel rotated by a motor, a steering wheel whose direction is changed by a handle that can be steered by foot or hand, and a stop. A tunnel inspection vehicle, which is provided with a brake used at the time. 2. The tunnel inspection vehicle according to claim 1, wherein the drive wheels are directly connected to a drive shaft of the geared motor. 3. The driving wheel is a single wheel.
The tunnel inspection car described. 4. At least one truck without drive wheels,
The tunnel inspection vehicle according to any one of claims 1 to 3, wherein the vehicle is towably connected.