JP4510385B2 - Water tunnel electric inspection vehicle - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a water tunnel electric inspection vehicle, and more particularly to a water tunnel electric inspection vehicle used as a moving means when performing maintenance inspection work in a small section water channel such as a hydroelectric power plant.
[0002]
[Prior art]
In some types of hydroelectric power plants, several to several tens of kilometers of waterway tunnels are laid from the water intake upstream of the river to the power plant hydraulic iron pipe, and water is supplied from the upstream of the river to the power plant through this waterway tunnel. Power is generated by The aqueduct tunnel deteriorates over time, but it is necessary to regularly maintain and inspect the aqueduct tunnel in order to detect this deterioration at an early stage and repair it to improve the reliability of power generation.
[0003]
This maintenance and inspection work is performed by periodically stopping water introduction to the canal tunnel and checking the wall surface of the canal tunnel for any abnormalities while the worker enters and moves inside the canal tunnel. The movement of workers in the canal tunnel is usually by foot, but the canal tunnel has a small cross section of about 1.2m in height, forcing the worker to walk with forward bending, There is a problem that a great burden is placed on the worker.
[0004]
In order to solve this problem, Japanese Patent Laid-Open No. 2000-297422 proposes an electric tunnel inspection vehicle that allows an operator to ride in either a sitting posture or a prone posture.
[0005]
[Problems to be solved by the invention]
However, even when the waterway tunnel is stopped, there are places where the water depth is several centimeters to several tens of centimeters, and in the tunnel inspection vehicle proposed in Japanese Patent Laid-Open No. 2000-297422, the ride in the prone posture Since the position is the same height as the boarding position in the seating posture, it is difficult to travel in a place where the water is deeper than the boarding position in the seating posture even if it is a prone posture.
[0006]
It is an object of the present invention to provide a waterway tunnel electric inspection vehicle that can travel even at a depth greater than the boarding position in a seated posture, although there is an upper limit on the water depth that can travel.
[0007]
[Means for Solving the Problems]
In order to solve the above-described problems, the present invention provides a drive tunnel and an electric inspection vehicle for a waterway tunnel that is used as a moving means when performing maintenance inspection work in a small-section waterway tunnel, and is attached to the drive frame and the battery is powered. A drive unit having a drive wheel using a motor as a drive source, and a riding unit having a riding frame and a backrest, and the driving unit and the riding unit can travel in a seated posture of a person. and in any of the running possible forms in the prone position can be changed, the position of the riding frames in drivable form in the prone position in terms higher than the position of the riding frames in drivable form in sitting position There is a first feature.
[0008]
Further, the present invention separates the riding frame, unfixes the backrest portion and the drive frame, and fixes the riding frame, the backrest portion, and the drive frame in a new positional relationship. there is a second feature in that are enabled changes in form which can be transported carrying.
[0009]
Furthermore, the present invention has a third feature in that the drive unit has an auxiliary tool at a rear lower end position and can be self-supported in the transportable form.
[0010]
According to the first feature, even in a harsh working environment in a place where the water is deeper than the boarding position in the sitting posture, the operator can easily perform the inspection work by running the water tunnel electric inspection vehicle.
[0011]
Further, according to the second feature, the water tunnel electric inspection vehicle can be transported by one worker alone, and further, according to the third feature, the worker can use the back strap or the like to be in an independent state. Can easily carry a water tunnel electric inspection vehicle.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 is a schematic side view of an embodiment of the waterway tunnel electric inspection vehicle according to the present invention when the vehicle can travel in a sitting posture, and FIG. 2 is a schematic top view of FIG. As illustrated, the water tunnel electric inspection vehicle includes a drive unit 1 and a riding unit 2.
[0013]
The drive unit 1 is a DC motor 6, a controller 4 that controls the rotation of the DC motor 6, a battery 5 that supplies power, and a drive driven by a rotation of the DC motor 6 via a drive shaft 7 and a rotation orthogonal unit (not shown). There are wheels 8 and rear side rollers 19 for side contact, which are attached to the drive frame 3.
[0014]
The rotation of the drive wheel 8 is controlled via the controller 4 by the tilt direction and tilt angle of the lever of the joystick 18, thereby making it possible to vary the forward / backward direction and speed of the waterway tunnel electric inspection vehicle. The joystick 18 is usually arranged on the right side of the vehicle with respect to the vehicle traveling direction so that the operator can operate it with the right hand. However, FIG. 1 shows the joystick 18 on the left side of the vehicle for the sake of illustration. The joystick 18 is detachable and can be operated by being mounted at the front end position of the vehicle, as will be described later.
[0015]
The riding part 2 has a riding frame 9 and a backrest part 10. An engagement portion 10b at one end of the backrest portion 10 is connected to an engagement portion 9b formed on the upper end of the riding frame 9 by a detachable pin with a detachable retaining mechanism (not shown). The engaging part 10a is connected to the engaging part 3a of the drive frame 3 by a detachable pin with a retaining mechanism (not shown). Further, the engagement portion 20a at one end of the connection B shaft 20 is connected to the engagement portion 3b of the drive frame 3 by a pin with a detachable retaining mechanism (not shown), and the other end of the connection B shaft 20 is engaged. The portion 20b is connected to an engaging portion 9a below one end of the riding frame 9 by a pin with a detachable retaining mechanism (not shown), and the engaging portion 20c formed in the intermediate portion of the connecting B shaft 20 is a backrest portion. It is connected to the engaging part 10c of 10 with the pin with a detachable retaining mechanism which is not shown in figure. With the above configuration, the drive frame 3 and the riding frame 9 are fixed to each other with a predetermined positional relationship shown in the figure.
[0016]
The connecting A shaft 11 has a detachable retaining mechanism (not shown) in which an engaging portion 11b formed at one end portion connects the engaging portion 20a of the connecting B shaft 20 to the engaging portion 3b of the drive frame 3. The pin is also used as a pin and is temporarily fixed to the drive frame 3 by a fixing band (not shown).
[0017]
A lamp 15 for lighting in the tunnel, a lamp battery 16 and a spider's nest avoiding rod 17 are attached to the front end of the boarding frame 9. A joystick 18 for determining the speed is detachably attached. As described above, the joystick 18 is actually disposed on the right side of the vehicle with respect to the vehicle traveling direction. Further, front side rollers 13 for side contact are attached to both front side surfaces of the riding frame 9.
[0018]
The front wheel 12 is fixed by inserting an insertion shaft portion of the front wheel 12 (not shown) into a front wheel insertion portion 14 on a pipe provided on the front side surface of the riding frame 9.
[0019]
The embodiment of the water tunnel electric inspection vehicle according to the present invention that can travel in the sitting posture is as described above, and the operator gets on the posture as shown in FIG. 1 and operates the joystick 18. Thus, the vehicle can be driven in the tunnel.
[0020]
Next, referring to FIG. 3, a change from the form capable of traveling in the sitting posture of FIG. 1 to the form capable of traveling in the prone posture will be described. First, the detachable pin with a detachable retaining mechanism (not shown) connecting the connecting B shaft 20 and the drive frame 3 at the engaging portions 20a and 3b, and the connecting B shaft 20 and the backrest portion 10 are engaged portions 20c and 10c. And a detachable pin with a detachable retaining mechanism (not shown) and a detachable pin with a detachable retaining mechanism (not shown) connecting the connecting B shaft 20 and the riding frame 9 at the engaging portions 20b, 9a. The connecting B shaft 20 is separated.
[0021]
Next, the front wheel 12 is removed from the front wheel insertion portion 14 of the riding frame 9. The drive frame 3, the riding frame 9 and the front wheel 12 separated by the above work are in a prone posture as shown in FIG. 3 using the connection A shaft 11, the connection B shaft 20, the connection C shaft 21 and the connection D shaft 22. It is assembled in a form that can run.
[0022]
This assembly will be described below. First, the insertion side of the connection D shaft 22 is inserted into the front wheel insertion portion 14 of the riding frame 9, and the front wheel is inserted into the other end portion of the connection D shaft 22. Next, the engaging portion 20a of the connecting B shaft 20 and the engaging portion 9c of the boarding frame 9 are combined, and the engaging portion 20b of the connecting B shaft 20 and the engaging portion 22a of the connecting D shaft 22 are combined, and are detachable (not shown). Connect with a pin with a retaining mechanism.
[0023]
Next, the engaging portion 9a of the riding frame 9, the engaging portion 10c of the backrest portion 10, and the engaging portion 11a of the connecting A shaft 11 are combined and connected by a pin with a detachable retaining mechanism (not shown). Next, the engaging portion 21b of the connecting C shaft 21 and the engaging portion 22b of the connecting D shaft 22 are combined and connected by a detachable pin with a retaining mechanism (not shown). Finally, the engaging portion 21a of the connecting C shaft 21 is aligned with the engaging portion 3b of the drive frame 3, and the connecting A shaft 11 is connected also by using a detachable pin with a retaining mechanism (not shown).
[0024]
By the above operations, the tunnel inspection vehicle is changed to the running possible forms in a lying posture in FIG. 3 from the travel possible forms in sitting posture of Figure 1, the riding position As a result of this change, that is, the position of the riding frames seated posture It becomes higher than the boarding position in the form which can be traveled by. In this embodiment, the joystick 18 can be installed and changed to the front end position of the riding frame 9 so that it can be easily operated in the prone posture. Moreover, since the spider web avoiding rod 17 is telescopic, it can be changed according to the ceiling height of the traveling tunnel.
[0025]
As a result, the operator can get on in a prone posture as shown in FIG. 3, and can drive the vehicle in the tunnel by the same operation as the sitting posture.
[0026]
FIG. 4 shows a state where the waterway tunnel electric inspection vehicle is changed to a transportable form. Next, a change from the form capable of traveling in the sitting posture of FIG. 1 to the form of transportable in FIG. 4 will be described.
[0027]
First, a pin with a detachable retaining mechanism (not shown) that connects the riding frame 9 and the connecting B shaft 20 at the engaging portions 9a and 20b, and the riding frame 9 and the backrest portion 10 are engaged portions 9b and 10b. The detachable pin with a detachable retaining mechanism (not shown) that is connected to the vehicle is removed, and the riding frame 9 is separated. Moreover, the pin with a detachable retaining mechanism (not shown) that connects the backrest 10 and the connecting B shaft 20 at the engaging portions 10c and 20c is removed.
[0028]
Next, the engaging portion 10a connecting the backrest portion 10 to the drive frame 3 is rotated and lifted with the engaging portion 10a as a fulcrum.
[0029]
Next, the mounting frame 9 is engaged with its engaging portion 9c with the engaging portion 3a of the driving frame 3 so that the lower surface of the riding frame 9 faces the driving frame 3, and the backrest portion 10 is connected. Attach the pin with the retaining mechanism. Next, the engaging portion 9b of the boarding frame 9 is aligned with the engaging portion 20b of the connecting B shaft 20, and is attached by a detachable pin with a retaining mechanism (not shown). The boarding frame 9 is fixed to the drive frame 3 by the above operation, and the vehicle can be transported using a back strap or the like.
[0030]
In this transportable form, it is possible to stand on its own by a fall prevention auxiliary wheel 23 attached to the rear lower end of the drive frame 3, and the auxiliary wheel 23 is separated from the riding frame 9 and becomes only the drive unit 1. Helps prevent falls in the state. In addition, the connection C shaft 21, the connection D shaft 22, etc. which are not used in each form are accommodated in the accommodation part provided suitably.
[0031]
【The invention's effect】
As is clear from the above description, according to the present invention, since the position of the riding frame in the form capable of running in the prone position is higher than the position of the riding frame in the form capable of running in the sitting position, Even in a harsh working environment where the water is deeper than the position, the operator can easily perform the inspection work by driving the waterway tunnel electric inspection vehicle in a prone posture.
[0032]
In addition, since the water tunnel electric inspection vehicle of the present invention can be changed to a form that can be carried by one operator, it is easy to carry and can be self-supporting in a form that can be carried. Can be easily carried on the back using a strap or the like.
[Brief description of the drawings]
FIG. 1 is a schematic side view of an embodiment of the waterway tunnel electric inspection vehicle according to the present invention in a configuration capable of traveling in a sitting posture.
FIG. 2 is a schematic top view of FIG.
FIG. 3 is a schematic side view of the waterway tunnel electric inspection vehicle of FIG. 1 when it can travel in a prone posture.
4 is a schematic side view of the waterway tunnel electric inspection vehicle of FIG. 1 in a transportable configuration.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Drive part, 2 ... Riding part, 3 ... Drive frame, 3a, 3b ... Engagement part of drive frame, 4 ... Controller, 5 ... Battery, 6 ... DC motor, 7 ... drive shaft, 8 ... drive wheel, 9 ... ride frame, 9a, 9b, 9c ... engagement part of ride frame, 10 ... backrest part, 10a, 10b, 10c: engagement part of the backrest part, 11 ... connection A shaft, 11a, 11b ... engagement part of the connection A shaft, 12 ... front wheel, 13 ... front side roller, 14 ..Front wheel insertion portion, 15 ... light, 16 ... light battery, 17 ... cobweb avoidance rod, 18 ... joystick, 19 ... rear side roller, 20 ... connection B Shaft, 20a, 20b, 20c ... engaging part of connecting B shaft 21 ... linking C shaft, 21a, the engaging portion of 21b ... connecting C shaft, 22 ... coupling D shaft, 22a, the engaging portion of 22b ... connection D shaft, 23 ... auxiliary wheel

Claims (3)

In the water tunnel electric inspection vehicle used as a moving means when performing maintenance inspection work in the small cross section water tunnel,
A drive unit that includes a drive frame and a drive wheel that is attached to the drive frame and uses a motor that uses a battery as a power source;
A ride frame having a ride frame and a backrest,
Wherein the drive unit and the boarding section, in any of the running possible forms in the prone position and the running possible form in sitting position can be changed, the position of the riding frames in drivable form in the prone posture seated waterway electric inspection vehicle being higher than the position of the riding frames in drivable form posture. A mode in which one operator can carry the vehicle by separating the riding frame, unfixing the backrest portion and the driving frame, and fixing the riding frame, the backrest portion and the driving frame in a new positional relationship. The waterway tunnel electric inspection vehicle according to claim 1, wherein the vehicle can be changed to The water channel tunnel electric inspection vehicle according to claim 2, wherein the drive unit has an auxiliary tool at a rear lower end position, and can be self-supported in the transportable form.

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