JPH06156B2 - Long-distance control type water spray truck - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a remote-controlled water-spraying vehicle in which a vehicle body whose travel is freely controlled by remote control is provided with a water-spraying unit which is controllable to change the water discharge state by remote-control. Regarding

[Conventional technology]

Such a water discharge vehicle is mainly used for fire fighting, and is generally connected to a pump vehicle including a tank and a water supply pump by a hose, and water is injected from a water discharge portion to a desired location. Further, since the vehicle body can be controlled to travel and the water discharge state of the water discharge portion can be changed by remote control, the worker has an advantage of being able to perform the water discharge operation while being located at a safe place.

By the way, conventionally, the traveling control and the change control of the water discharge state are performed by one receiver.
(A conventional document cannot be described.) [Problems to be solved by the invention] When running control and water discharge state change control are performed by one receiver, a trouble occurs in which the receiver fails. Since it is not possible to perform both the traveling control and the water discharge state change control, the water discharge work must be stopped, and there was room for improvement.

The present invention has been made in view of the above circumstances, and an object thereof is to enable water discharge work to be continued regardless of a failure of a receiver.

[Means for solving problems]

The characteristic configuration of a remote-controlled water discharge vehicle according to the present invention is such that a receiver for traveling control on the vehicle body and a receiver for changing control of the water discharge state on the water discharge portion are separately provided, and for the traveling control. One transmitter for transmitting the instruction information of 1. and the instruction information for controlling the change of the water discharge state is provided, and its action and effect are as follows.

[Action]

That is, even if the traveling control becomes impossible, the water discharge operation can be continued by the change control of the water discharge state, and even if the change control of the water discharge state becomes impossible, the direction of the water discharge from the water discharge part is changed to the direction or position of the vehicle body. While paying attention to the case where the water discharge work can be continued while changing it depending on the change of the, the receiver for the traveling control and the receiver for the change control of the water discharge state can be effectively utilized. By separately providing it, even if one of the two receivers should break down, the work of discharging water to a desired location can be continued.

In other words, in the unlikely event that the receiver for travel control fails, the water discharge state of the water discharge part can be changed by remote control so that water is discharged to a desired location, and conversely, the water discharge state is changed. In the unlikely event that the receiver for control malfunctions, it is advisable to change the direction and position of the vehicle body by remote control so that water is sprayed to a desired location. or,
Since there is one transmitter for both receivers, even if one of the receivers fails as described above, you can change the running or water discharge state while holding that transmitter, so it will fail quickly. Can be dealt with.

〔The invention's effect〕

Therefore, even if one of the two receivers breaks down, it is possible to quickly deal with it, so that the water discharge work can be continued as much as possible regardless of the breakdown of the receiver, which is particularly convenient when using for fire extinguishing work. Became.

EXAMPLES Examples of the present invention will be described below with reference to the drawings.

As shown in FIG. 2 to FIG. 4, the illustrated water discharge vehicle includes a vehicle body (A) whose travel can be controlled by remote control, and a water discharge state by remote control is provided at an intermediate portion in the front-rear direction of the vehicle body (A). Equipped with a water discharge part (B) that can be changed and controlled, at the rear of the vehicle body (A),
A storage part (C) for four hoses (2) for receiving water is provided, and below the storage part (C), four hose connection parts (1) that are connected to communicate with the water discharge part (C) are provided. ) Is provided. However, (3) in the figure is a receiving frame of the water discharge part (B).

The four hoses (2) are folded so as to be folded back in the front-rear direction of the vehicle body in a state where two hoses (2) are superposed on each other. Then, one end of each hose (2) is connected to the hose connecting portion (1), and the other end is connected to a pump vehicle (not shown) equipped with a tank and a water supply pump.

Also, at the rear end of the housing portion (C) of the hose (2), the vehicle body (A)
A hose feeding port (K) for feeding the hose (2) backward as the vehicle runs is opened.

In other words, when performing the water discharge work, with the hose (2) connected to the hose connection part (1) and the pump car, run the car body (A) while the entire hose (2) is in the car body (A). Of water from the pump car, and then the water supply from the pump car is started.
Water will be released from (B).

Hereinafter, each part will be described in detail.

The vehicle body (A) includes a vehicle body frame (D) formed by framing a square pipe material, and various devices are attached to the vehicle body frame (D). That is, in the front part of the body frame (D), a driving part (E) including an engine (4) and a radiator (5).
Is mounted, the traveling hydraulic type continuously variable transmission (6) and the mission case (7) are attached to the rear part of the body frame (D),
The front wheel support case (9), which supports the pair of left and right front wheels (8) so that the direction can be freely changed, and which houses the differential device, is a body frame.
It is attached to the front of (D).

The mission case (7) is for accommodating a differential device for the left and right rear wheels (10), and supports a pair of left and right rear axle cases (11) for supporting the respective left and right rear wheels (10) in a direction changeable manner. Is attached to the mission case (7).

The engine (4) and the hydraulic continuously variable transmission (6) are interlockingly connected using a transmission shaft (12) with a universal joint, and the output of the continuously variable transmission (6) is inside the mission case (7). To the rear wheel differential and the transmission case
The output transmitted in (7) is the transmission shaft with universal joint (13).
Is transmitted to the front wheel support case (9).

As shown in FIG. 1, the pair of left and right front wheels (8) and the pair of left and right rear wheels (10) have front and rear steering hydraulic cylinders (1).
It is operated separately in 4) and (15), and the front and rear wheels are
Parallel steering type in which (8) and (10) are turned in the same direction, four-wheel steering type in which the front and rear wheels (8) and (10) are turned in opposite directions to make a sharp turn, and front wheels (8) only It is possible to use a two-wheel steering system that changes the direction of the steering wheel.

However, in this embodiment, a four-wheel steering type and a two-wheel steering type are used.
The case where only the wheel steering type is used is illustrated.

In the figure, (14A) and (15A) are steering hydraulic cylinders (14) and
The control valve for (15) and (16) are electric variable speed motors for the continuously variable transmission (6).

The water discharge part (B) includes a discharge pipe (17) for rod-shaped water discharge, a discharge pipe (18) for spray water discharge, and a switching valve () for selectively flowing water to the discharge pipes (17), (18). It is roughly divided into a distal end side portion composed of 19) and the like and a proximal end side portion. And the base end side part is
It is divided into a mounting base (20) that also serves as a water collecting pipe and a relay pipe part (21) that is rotatably mounted on the mounting base (20), and at the upper end of the relay pipe part (21), the tip side part Is mounted so that it can swing up and down.

In the figure, (22) is a hydraulic motor for operating the switching valve (19), and (23) is a relay pipe section (21) using a worm mechanism.
(24) is a swinging hydraulic motor for swinging the tip end side portion using a worm mechanism, and (18A) is a discharge pipe (18) for spraying water. It is a hydraulic cylinder for adjusting the opening degree that changes the water discharge range.

As shown in FIG. 3 and FIG. 4, the left two of the four hose connection parts (1) are connected to the left water supply pipe (25L), and the right two are right. It is connected to the water supply pipe (25R). The left and right water supply pipes (25L) and (25R) are distributed and arranged on both lateral side cylinders of the vehicle body, and the front ends thereof are the mounts (2
It is connected to the lateral side of (0).

As shown in FIG. 3, the housing (C) of the hose (2) includes a bottom wall (26a), left and right side walls (26b), and a front side wall (26c).
The sheet-like cover body (27) covering the upper part is detachably provided, and the door (28) for opening and closing the hose outlet (K) is a horizontal axis on the upper end side. It is pivoted around the core (X) so that it can be opened and closed.

Incidentally, reference numeral (29) in the figure is a watering nozzle provided on the front part of the vehicle body (A) and on both lateral sides of the vehicle body (A), and is provided for cooling the vehicle body (A). And those watering nozzles (29)
Water supply to the main (3L) connected to the water supply pipe (25L) on the left side.
Water from (0) is supplied to each nozzle by three branch pipes (31).
He is led to (29). However, (32) in the figure
It is a manually operated cock.

Next, a configuration for remotely controlling the vehicle body (A) will be described with reference to FIG.

That is, the steering hydraulic cylinders (14), (15)
The control device (H) for giving an operation command to the control valves (14A), (15A) and the variable speed motor (16) of the above is configured by using an electronic device, and the traveling control for receiving the transmission information from the transmitter (33). Receiver for
(34A) is connected to the control device (H). A pair of front wheels
A potentiometer (35) for detecting the orientation of (8), a potentiometer (36) for detecting the orientation of the pair of rear wheels (10), and
A vehicle speed detecting potentiometer (37) for detecting the position of the speed change arm (6a) of the speed change device (6) is provided respectively, and the detection signals of the potentiometers (35), (36), (37) are respectively controlled.
It has been entered in (H).

The transmitter (33) is provided with a vehicle speed lever (38) for instructing a target vehicle speed by forward / backward movement, and a steering lever (39) for instructing a steering type by forward / backward movement and also instructing a target steering position by left / right movement. Provide various transmission sensors for detecting the operation position and operation amount of each lever (38), (39) and transmitting device for transmitting the detection information of the detection sensor to the receiver (34A). Bowl (33)
It is provided inside.

Therefore, based on the vehicle speed command information from the transmitter (33) and the detection information from the vehicle speed detection potentiometer (37), the transmission motor
(16) is operated so that it can be operated at the target vehicle speed, and steering type command information and steering position command information from the transmitter (33) and potentiometers (35), (36) for wheel orientation detection. Based on the detection information of the control valve (1
4A) and (15A) are actuated to operate at the target steering position in the commanded steering mode.

Next, a configuration for remotely controlling the water discharge part (B) will be described.

That is, in the transmitter (33), a switch (S ₁ ) for switching operation of the switching valve (19), a turning operation switch (S ₂ ) of the water discharge section (B), the water discharge section (B). switch for vertical swing operation (S _3), and the switch for opening adjustment of the discharge tube for spraying water discharge (18) (S ₄₎ is provided, the information thereof switches (S ₁ to S ₄₎ Is also configured to be sent. On the other hand, the transmitter
(33) A receiver for controlling the water discharge part (3
4B) is provided, and this receiver (34B) is also connected to the control device (H).

Then, based on the command information from each of the switches (S _{1 to} S ₄ ), the control device (H), the valve operating hydraulic motor (22)
Control valve (22a), the control valve (23a) of the turning operation hydraulic motor (23), the control valve (24) of the swing operation hydraulic motor (24).
a) and the control valve of the hydraulic cylinder (18A) for adjusting the opening
It is configured to output an operation command to each of (18a).

In short, it is configured such that switching between a rod-shaped water discharge state and a spray water discharge state, adjustment of the water discharge direction, and opening adjustment in the spray water discharge state can be performed by remote control.

Further, the transmitter (33) has a switch for starting the engine.
(S ₅ ) and a switch (S ₆ ) for stopping the engine are provided, and the instruction information of the switches (S ₅ ) and (S ₆ ) is transmitted from the receiver (34A) for traveling control to the controller (H). It is designed to be input to. The control device (H) is configured to output an operation command to each of the electric motor (40) for starting the engine and the electric motor (41) for stopping the engine.

Therefore, the engine can be started and stopped by remote control.

Further, in FIG. 1, (42) is an electric siren, (43) is a red rotary light, and (44) is a headlight, which are (42), (43), (44).
Is automatically activated when the engine (4) is started by remote control, and is automatically stopped when the engine (4) is stopped by remote control. There is. However, (45) is an electric siren (4
It is a manual switch that switches 2) and the red revolving light (43) between an arbitrary operating state and a non-operating state.

A control box (46) used in place of the transmitter (33) is provided in the vehicle body (A) in a state of being connected to the control device (H) by an electric wire. Its control box (46)
Like the transmitter (33), is equipped with levers and switches. The control box (46) is normally housed and held on the vehicle body (A) side. In the figure
Reference numeral (47) is a switch for switching between a state of remote control by the transmitter (33) and a state of control by the control box (46).

FIG. 5 shows a hydraulic circuit for the vehicle body (A) and the water discharge part (B). Pressure oil from one hydraulic pump (48) driven by the engine (4) is supplied to the priority valve ( 49)
Through the hydraulic circuit section (50) for steering and each control valve (18a), (22a), (23a), (24a) of the water discharge section (B). By the way, the steering hydraulic circuit (50) is connected to the control port side of the priority valve (49), and the control valves (18a), (22) of the water discharge part (B) are connected to the surplus port side.
a), (23a) and (24a) are connected.

In addition, each control valve of the priority valve (49) and the water discharge part (B)
A pressure reducing valve (51) and an electromagnetic unload valve (52) are incorporated between (18a), (22a), (23a), and (24a). Then, the unloading valve (52) is urged to return to the unloading state, and any of the control valves (18a), (22a), (23a), (24a) is operated, It is designed to be automatically switched to the load state by the control device (H).

[Another embodiment]

In carrying out the present invention, the specific configuration of each part such as the configuration of the vehicle body (A) and the configuration of the water discharge part (B) can be changed in various ways.

In addition, when the water discharge part (B) is provided so as to be freely turnable, if it is allowed to turn only within the set range on the front side of the vehicle body,
Although the weight and size of (A) may be reduced, it may be possible to prevent the vehicle body (A) from tipping over due to the reaction force that accompanies water discharge, but the water discharge part (B) is provided so that it can make full turns. May be.

It should be noted that reference numerals are added to the claims for convenience of comparison with the drawings, but the present invention is not limited to the structures of the accompanying drawings by the entry.

[Brief description of drawings]

The drawings show an embodiment of a remote-controlled water-sprayer according to the present invention. Fig. 1 is a block diagram showing the configuration of the remote-control, Fig. 2 is a side view of the water-sprayer, and Fig. 3 is an internal configuration of the water-sprayer. FIG. 4 is a side view showing the above, FIG. 4 is a plan view of the same, and FIG. 5 is a hydraulic circuit diagram. (8) …… Front wheel, (10) …… Rear wheel, (17) …… Discharge cylinder for water discharge in a rod shape, (18) …… Discharge cylinder for spray water discharge, (19) …… Switching valve,
(34A), (34B) …… Receiver, (A) …… Car body, (B) …… Water discharge part.

Claims (4)

[Claims] 1. A vehicle body (A) whose traveling can be controlled by remote control
In addition, the water discharge part can be controlled by changing the water discharge state by remote control.
(B) is a remote-controlled water discharge vehicle provided with a receiver (34A) for the traveling control and a receiver (34B) for the change control of the water discharge state separately. A remote-controlled water discharge vehicle provided with one transmitter (33) for transmitting the instruction information for the traveling control and the instruction information for the change control of the water discharge state. 2. The vehicle body (A) includes a pair of steerable left and right front wheels (8) and a pair of steerable left and right rear wheels (10). The remote-controlled water spray vehicle described. 3. The water discharge part (B) is provided so as to be freely pivotable and vertically swingable.
A remotely controlled waterproof vehicle according to any one of the items. 4. The water discharge part (B) is a discharge pipe (1) for discharging water in a rod shape.
7), discharge pipe for spraying water (18), and those discharge pipes (1
7. A remotely controlled water spray vehicle according to any one of claims 1 to 3, further comprising a switching valve (19) for selectively flowing water in 7) and (18).