JP2766970B2 - Drainage method by drainage pump truck - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to an emergency drainage system in the event of a water disaster,
The present invention relates to a drainage method using a drainage pump truck used for drainage in civil engineering temporary works or agricultural water supply and drainage.

[0002]

2. Description of the Related Art Conventionally, as a drainage pump truck used for emergency drainage in the event of a water disaster, temporary construction work drainage, or agricultural water supply / drainage, a truck used for loading and unloading onboard equipment such as a pump. , Multiple drain pumps (submersible pumps) and drain pumps with floats, private power generators that supply power to the drive sources (motors) for these drain pumps, their operation panels, and drain outlets for each drain pump A drain hose to be connected, a cable for electrically connecting a drive source of each drain pump to an operation panel of the private power generator, a main floodlight for night work, an auxiliary floodlight for spot lighting, and power to the auxiliary floodlight. Some devices are equipped with devices such as a general-purpose power generation device that supplies the power. According to this type of drainage pump truck, if the vehicle arrives at the edge of the drainage or water supply / drainage site by self-propelled connection, the drainage hose and the cable cable are connected, and then the drainage pump is driven underwater by the crane. The drainage is performed by supplying power to the drive source of the drainage pump by operating the private power generator and operating the drainage pump.

[0003] By the way, in the conventional drainage pump truck,
If the ground at the drainage or plumbing site and the surrounding area is hard, the drainage pump truck can run to the shore, but if the ground is soft, it cannot run to the shore. Therefore, the stop position of the drainage pump truck is restricted to a location relatively remote from the waterside. For this purpose, various tasks such as transporting the drainage pump with the float unloaded from the loading platform to the shore, laying the drainage pump underwater from the shore, and transporting and connecting the cab tire cable are performed manually. There must be. In other words, the work of transporting the drainage pump unloaded from the bed by the crane to the shore by a hand truck, the construction of an inclined guide at the shore, and the work of laying the drainage pump underwater using the constructed inclined guide And other operations must be performed by many workers.
In addition, since these operations are extremely troublesome and difficult, the workability is poor and the rapid start of drainage after reaching the drainage or plumbing site is prevented. Further, since a private power generator and an operation panel for operating the drainage pump are required, the equipment becomes large-sized, and has a disadvantage that it is economically disadvantageous.

Accordingly, the applicant of the present invention has filed Japanese Patent Application No. 4-33.
In No. 269, even if the drainage or water supply / drainage site and the surrounding ground are soft, the amphibious vehicle runs on its own to the shore, the operation of unloading the amphibious vehicle from the carrier of the transport vehicle, and moving from the lowered position to the shore. Operation, launching the amphibious vehicle from the shore and moving it up to the depth where the drain pump can be operated, stopping the amphibious vehicle at this depth and then draining it, and draining after draining is completed. A series of operations such as an operation to stop the operation of the pump, an operation to return the amphibious vehicle to the shore and an operation to move it from here to the transport vehicle and put it on the bed,
We proposed a drainage pump truck that can be configured to be operated by remote control and that can improve workability.

[0005] However, in this type of drainage pump truck, for example, in a state where the shore is formed by a large step, the amphibious vehicle, that is, the drainage pump truck cannot enter the drainage area, and drainage can be performed. Have difficulties that cannot be achieved.

[0006]

The problem to be solved is that at the shore where amphibious vehicles cannot enter the drainage area.
It is not possible to drain.

[0007]

According to the first aspect of the present invention, a self-propelled engine and drainage of the outside of the boat-shaped closed body are performed on an amphibious vehicle capable of traveling on soft ground having a boat-shaped closed body. A drainage pump is mounted, and the power transmission system for driving the amphibious vehicle and the power transmission system for driving the drainage pump transmit power to a drive unit of the amphibious vehicle using a hydraulic pump driven by the engine as a drive source. A hydraulic circuit for driving a vehicle provided with a first hydraulic motor, and a hydraulic pressure for operating a drain pump provided with a second hydraulic motor for transmitting power to a driving portion of the drain pump using the hydraulic pump as a drive source. A drainage method using a drainage pump truck, comprising a switching valve for alternately opening and closing both hydraulic circuits, wherein the drainage pump truck is provided with a hydraulic pump, and the amphibious vehicle is loaded on a carrier of a transport vehicle. And then conveyed to the waste water near the site, the free-running is lowered to the ground amphibious vehicle from the loading platform of the carrying vehicle, the drainage ho the discharge port of the drain pump - connects the scan,
In addition, after connecting an extended hydraulic oil hose for forming a hydraulic circuit for operating a drainage pump to the second hydraulic motor, the drainage pump is lifted by a crane and installed in water, and drainage is performed by remote control. It is characterized by draining water by operating a pump, and has achieved the purpose of enabling drainage even on the shore where amphibious vehicles cannot enter the drainage area.

According to a second aspect of the present invention, a discharge port which can be selectively used is provided at two places, an upper portion and a lateral portion, of the drain pump. An outlet is selected and used to prevent the drain pump from falling and enhance stability.

According to a third aspect of the present invention, the extended hydraulic oil hose having a coupler at both ends is mounted on the transport vehicle in a state of being wound around a hose reel, and drained from the waterside. Regardless of the distance to the area, the hydraulic circuit for operating the drainage pump can be easily formed.

The invention according to claim 4 is characterized in that the pump stand mounted on the transporting vehicle is mounted and the drain pump is installed underwater, and that the drain pump falls down after installation underwater (underwater). To prevent and increase stability.

[0011]

According to the first aspect of the present invention, even when the amphibious vehicle cannot enter the drainage area, the drainage pump can be operated underwater (water bottom).
Can be installed and drained.

According to the second aspect of the present invention, during drainage operation with the drainage pump installed in the water, the lateral load applied to the drainage pump is reduced to prevent the drainage pump from falling down, and to maintain stability. Can be increased.

According to the third aspect of the present invention, if the distance from the amphibious vehicle to the drainage area is within a predetermined range, the hydraulic circuit for operating the drainage pump can be easily formed by the extended hydraulic oil hose to operate the drainage pump. I can drive.

According to the fourth aspect of the present invention, it is possible to reliably prevent the drain pump from falling down by the pump stand, and to further enhance the stability.

[0015]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic side view showing an example of a drainage pump truck to which the present invention is applied, and FIG. 2 is a system diagram of a power transmission system for driving a vehicle and a power transmission system for driving a drainage pump. 1 is an amphibious vehicle, a boat-shaped sealed body 2,
The vehicle is composed of a pair of left and right crawlers 3A and 3B capable of traveling on soft ground. The boat-type closed body 2 has an engine 4 and two drain pumps 5A and 5A.
B, two hydraulic pumps 6A and 6B operated by the engine 4, and a hydraulic circuit 7 driven by the hydraulic pumps 6A and 6B are mounted in a watertight manner. The suction ports of the drainage pumps 5A and 5B respectively penetrate the bottom of the boat-shaped closed body 2 in a watertight manner and open at the lower side of the bottom. The hydraulic pumps 6A and 6B are directly connected to the engine 4. These are variable displacement bidirectional flows, and the direction of oil flow and the amount of discharged oil are adjusted by regulators. The hydraulic circuit 7 is a two-circuit set of a hydraulic circuit 7A for driving the vehicle that constitutes a power transmission system for driving the vehicle of the amphibious vehicle 1.
, 7A2 and a set of two hydraulic circuits 7B1, 7B2 for operating the drainage pump, which constitute the power transmission system for operating the drainage pump.
A first hydraulic motor 8A is provided in the vehicle operating hydraulic circuit 7A1, a first hydraulic motor 8B is provided in the vehicle operating hydraulic circuit 7A2, and a drain pump operating hydraulic circuit 7B1 is provided. A second hydraulic motor 9A is interposed in the hydraulic circuit 7B2, and a second hydraulic motor 9B is interposed in the hydraulic circuit 7B2 for operating the drain pump. The output shaft of the first hydraulic motor 8A is connected to the driving wheel of one of the rollers 3A, and the first hydraulic motor 8A
The output shaft of the motor 8B is connected to the driving wheel of the other roller 3B.
Connected to the Also, the vehicle operating hydraulic circuit 7A
1, 7A2 and hydraulic circuit 7B1, 7B2 for drain pump operation
Is operated by switching the electromagnetic or electric switching valves 10A and 10B, and the switching valves 10A and 10B are opened and closed.
The switching control of the engine 10B, the operation / stop and rotation speed control of the engine 4, and the control of the oil flow direction and the discharge amount of the hydraulic pumps 6A and 6B are performed by the transmitter 11A and the transmitter 11A.
A remote control is performed by a control device 11 including a reception controller 11B that receives a wireless signal transmitted from A and outputs a control signal.

With such a configuration, as shown in FIG. 3, the amphibious vehicle 1 loaded on the carrier of the transport vehicle 12 such as a truck is transported to the vicinity of drainage or plumbing.
When the vehicle arrives near the site, a radio signal is transmitted from the control device 11 in FIG. 2 to shift the switching valves 10A and 10B to the closed circuit forming side of the vehicle operating hydraulic circuits 7A1 and 7A2. Then, the engine 4 is started, and a rotation speed control radio signal is transmitted to the engine 4 to raise the rotation speed of the engine to a predetermined rotation range while moving the oil flow directions of the hydraulic pumps 6A and 6B toward the reverse rotation side of the vehicle. By setting, the discharge amount is gradually increased. As a result, the hydraulic pumps 6A, 6A of the hydraulic circuit 7
B is activated to drive the first hydraulic motors 8A and 8B of the vehicle operating hydraulic circuits 7A1 and 7A2, and the rollers 3A and 3B are driven.
B is rotated in the backward direction. As a result, the amphibious vehicle 1 shown in FIG. 3 travels on its own, recedes straight back and forth using the inclined guide table 13, and descends from the carrier of the transport vehicle 12.

If the amphibious vehicle 1 descends to the ground,
By transmitting a radio signal from the control device 11 shown in FIG. 2, the oil flow direction of the hydraulic pumps 6A and 6B is set to the forward rotation side of the vehicle, and the first hydraulic motors 8A and 8B are driven so that the crawler is driven. 3A and 3B are rotated in the forward direction. This allows
The amphibious vehicle 1 travels by itself and advances to the water's edge, where it is temporarily stopped. The left and right turns of the amphibious vehicle 1 can be executed by changing the driving speed of the left and right rollers 3A and 3B. Once the amphibious vehicle 1 stops at the water's edge, the drainage pumps 5A, 5A
A drain hose (not shown) is manually connected to the discharge port of B.

Subsequently, the amphibious vehicle 1 is made to advance by itself by the same operation as above. Boat type sealed body 2
Until the amphibious vehicle 1 reaches a water depth at which a draft that allows the amphibious vehicle 1 to float by the buoyancy is reached, the crawler 3A, 3B moves in a semi-submerged state seated on the bottom of the water. After the amphibious vehicle 1 has moved to the depth at which it floats due to the buoyancy of the boat-shaped closed body 2, the crawlers 3A, 3A
By continuing the forward rotation of B, the crawler 3
The crawler projections 3a and 3b (see FIG. 4) protruding from A and 3B rotate to obtain a thrust for advancing the amphibious vehicle 1 in a floating state. Closing after launch
By rotating the motors 3A and 3B in the retreating direction, a thrust for reversing the amphibious vehicle 1 in a floating state can be obtained. Can be steered to turn the vehicle. When the amphibious vehicle 1 reaches the operable area of the drainage pumps 5A and 5B by moving on the water surface in a floating state, the switching valves 10A and 10B are closed to form drainage pump operating hydraulic circuits 7B1 and 7B2. Shift to the side. As a result, the amphibious vehicle 1 stops at the water surface, and the second hydraulic motors 9A, 9B of the drainage pump operating hydraulic circuits 7B1, 7B are driven. As a result, the drain pumps 5A and 5B are activated to start draining. Drainage pump 5
As the water level decreases due to the operation of A and 5B,
The controller 11 transmits a radio signal for controlling the rotation speed of the engine 4 from the control device 11 to reduce the rotation speed of the engine 4.
A, 6B and the second hydraulic motors 9A, 9B may be reduced in rotational speed, and the drainage pumps 5A, 5B may be operated at a rotational speed corresponding to the variable water level to drain water. That is, the drainage pumps 5A and 5B can be operated at a low speed according to the decrease in the water level.

After the drainage is completed, the switching valves 10A and 10B are shifted to the closed circuit forming side of the vehicle operating hydraulic circuits 7A1 and 7A2 to stop the operation of the drainage pumps 5A and 5B. To move and return the amphibious vehicle 1 to the shore. Here, the vehicle is stopped once, and the drain hose is manually removed from the discharge ports of the drain pumps 5A and 5B. After the drain hose has been removed, the vehicle is moved to the transport vehicle 12 in FIG. 3 by itself, and the work is completed by placing the inclined guide table 13 on the carrier of the transport vehicle 13 as a guide to prepare for the next drainage or plumbing. .

As described above, by transmitting a radio signal from the control device 11, the amphibious vehicle 1 constituted by a crawler vehicle capable of traveling on soft ground is allowed to run on land and on water. Even if the ground is considerably soft, not to mention the ground, it can be easily moved to the shore, so the conventional work of transporting the drainage pump to the shore by a hand cart, construction of a slope guide at the shore, construction Omitting all the manual operations such as laying the drainage pump underwater using the inclined guide table,
Since the operation can be reduced to only the simple operation of attaching and detaching the drain hose, the workability is greatly improved, and the drainage can be started immediately after reaching the water supply / drainage site. In addition, by starting the engine 4 and switching the switching valves 10A and 10B, the closed circuit of the vehicle operating hydraulic circuits 7A1 and 7A2 or the drain pump operating hydraulic circuits 7B1 and 7B2 is selected to drive the amphibious vehicle 1. And the drain pumps 5A and 5B can be operated, so that large-scale facilities such as a private power generation device and an operation panel used in the conventional drain pump truck are not required, and a cumbersome transport and connection work of the cable is required. Is also unnecessary, the structure is simplified, and it is economically advantageous. Further, the remote control for transmitting a radio signal from the control device 11 causes the amphibious vehicle 1 to operate as described above.
Since the operation of the drain pumps 5A and 5B can be performed, the operation is easy and safe.

On the other hand, as shown in FIG.
Have detachably mounted drain pumps 5A and 5B each having an upper discharge port 51 and a horizontal discharge port 52, and a capacity capable of storing an increased amount of oil by using an extended hydraulic oil hose described later. It has a large oil tank OT. A long (for example, 30 to 40 m) extended hydraulic oil hose 14 having couplers 14A and 14B attached to both ends thereof as shown in FIG. It is mounted in a wound state. Further, for example, two truncated conical pump tables 16 are provided (however, only one pump table 16 is shown in FIG. 5).
By loading, the amphibious vehicle 1
Drainage work can be performed even at the edge of the river where water cannot enter.

That is, the amphibious vehicle 1 is transferred to the transport vehicle 1
2 and transported to a place near the drainage site, and as shown in FIG.
Of the drain pump 5A, one of the drain pumps 5A and 5B is closed, the upper discharge port 51 is opened, and the drain is discharged there. The hose 17 is connected and the coupler 1
As shown in FIG. 8, the hydraulic circuit 7B1 for operating the drainage pump is formed by the extended hydraulic oil hose 14 using the 4A and 14B. Then, the drainage pump 5A is lifted from the crane 18A mounted on the crane wheel 18 in FIG. 7 and detached from the amphibious vehicle 1, and the detached drainage pump 5A is removed.
After the truncated cone-shaped pump base 16 is attached to the lower end of the pump, the pump base 16 is installed on the water bottom 19A of the drainage area 19, and the switching valve 10A is shifted to the closed circuit forming side of the hydraulic circuit 7B1 for operating the drainage pump as described above. When the second hydraulic motor 9A is driven and the drain pump 5A drives the amphibious vehicle 1 to the drainage area 19 because the road surface FL and the water surface WL of the drainage area 19 have a large step H.
Water can be easily drained even on the waterfront where water cannot enter.

As described above, the horizontal discharge port 52 is closed, the upper discharge port 51 is opened, and the drain hose 17 is connected to the horizontal discharge port 52 so as to perform the drain operation by the drain pump 5A installed in the water. The drain pump 5
A 5A drainage pump by reducing the lateral load applied to A
Can be prevented and stability can be improved. In addition,
When the drainage operation is performed with the drainage pump 5A mounted on the amphibious vehicle 1, the upper discharge port 51 is closed, the horizontal discharge port 52 is opened, and a drain hose may be connected thereto. . Further, if the distance from the amphibious vehicle 1 to the drainage area 19 is within a predetermined range, that is, within the length range of the extended hydraulic oil hose 14, the extended hydraulic oil hose 14 can easily be used to operate the drain pump hydraulic pressure. The circuit 7B1 can be formed to operate the drain pump 5A. Further, the pump base 16 having a truncated cone shape can reliably prevent the drainage pump 5A from falling down, so that the stability can be further improved.

In the above embodiment, the drainage operation using the drainage pump 5A alone is described. However, it is needless to say that the drainage can be performed by using the drainage pump 5B alone or by using the two drainage pumps 5A and 5B simultaneously. Absent. Of course, the number of drainage pumps mounted on the amphibious vehicle 1 is also
It is not limited to only the two units.

[0025]

As described above, according to the first aspect of the present invention, the drainage pump can be installed in the water (water bottom) to drain the water even when the amphibious vehicle cannot enter the drainage area.

According to a second aspect of the present invention, during drainage operation in a state where the drainage pump is installed in the water, the lateral load applied to the drainage pump is reduced to prevent the drainage pump from falling down and to enhance stability. be able to.

According to a third aspect of the present invention, if the distance from the amphibious vehicle to the drainage area is within a predetermined range, the drainage pump operating hydraulic circuit is easily formed by the extended hydraulic oil hose to operate the drainage pump. I can do it.

According to the fourth aspect of the present invention, the fall of the drainage pump can be reliably prevented by the pump stand, and the stability can be further enhanced.

[Brief description of the drawings]

FIG. 1 is a schematic side view showing an example of a drainage pump truck.

FIG. 2 is a system diagram of a power transmission system.

FIG. 3 is a schematic side view showing a state where an amphibious vehicle is loaded on a carrier of a transport vehicle.

FIG. 4 is a partially enlarged perspective view showing a crawler projection.

FIG. 5 is a schematic side view showing a state in which an example of a drainage pump truck used for carrying out the present invention is loaded on a carrier of a transport vehicle.

FIG. 6 is an explanatory view showing a part of an extended hydraulic oil hose.

FIG. 7 is a schematic diagram showing a working state at the water's edge.

FIG. 8 is a system diagram of a power transmission system during a drain operation.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Amphibious vehicle 2 Boat-type closed body 4 Engine 5A, 5B Drain pump 6A, 6B Hydraulic pump 7 Hydraulic circuit 7A1, 7A2 Vehicle operating hydraulic circuit 7B1, 7B2 Drain pump operating hydraulic circuit 8A, 8B First hydraulic motor 9A, 9B Second hydraulic motor 10A, 10B Switching valve 12 Transport vehicle 14 Extended hydraulic oil hose 14A, 14B Extended hydraulic oil hose coupler 16 Pump stand 17 Drain hose 18 Crane 19 Drainage Area 19A Bottom of drainage area (underwater) 51 Upper discharge port of drainage pump 52 Horizontal discharge port of drainage pump FL Road surface (ground)

Claims (4)

(57) [Claims] A self-propelled engine and a drain pump for draining the outside of the boat-shaped closed body are mounted on an amphibious vehicle capable of traveling on soft ground having a boat-shaped closed body. A vehicle provided with a first hydraulic motor for transmitting power to a drive unit of the amphibious vehicle using a hydraulic pump driven by the engine as a drive source for a power transmission system for driving a vehicle and a power transmission system for driving a drainage pump. An operating hydraulic circuit, and a drain pump operating hydraulic circuit provided with a second hydraulic motor that transmits power to a drive unit of the drain pump using the hydraulic pump as a drive source. A drainage method using a drainage pump truck provided with a switching valve that alternately opens and closes a hydraulic circuit, wherein the amphibious vehicle is loaded on a carrier of a transporting vehicle, transported to a location near a drainage site, and self-propelled. To lower the amphibious vehicle from the carrier of the transport vehicle to the ground, connect a drain hose to the discharge port of the drain pump, and form a hydraulic circuit for operating the drain pump on the second hydraulic motor. A drainage method using a drainage pump truck, comprising connecting an extended hydraulic oil hose, lifting the drainage pump with a crane, installing the drainage pump in water, and draining by operating a drainage pump by remote control. 2. The drainage method using a drainage pump truck according to claim 1, wherein a discharge port that can be selectively used is provided at two locations on an upper portion and a lateral portion of the drainage pump. 3. A drainage pump truck according to claim 1, wherein said extended hydraulic oil hose having a coupler at both ends is mounted on said transport vehicle in a state wound around a hose reel. By drainage method. 4. The drainage method according to claim 1, wherein the pump is mounted underwater by attaching a pump stand mounted on the transport vehicle.