JP2004065456A - Fluid conveying equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide fluid conveying equipment which transmits a signal reliably without requiring a complicated structure and causing a delay of operation, on the occasion of conveying a fluid by a hose while transmitting the signal by a signal line fitted to the hose. <P>SOLUTION: The hose 2 and the signal line 3 fitted to the hose 2 so that the longitudinal direction thereof is along that of the hose 2 can be wound and let out by a rotating member 5 supported by a supporting member 6. A piping connector whereby one end of the hose 2 wound around the rotating member 5 is connected to piping for conveying the fluid and a wiring connector whereby one end of the signal line 3 is connected to wiring for signal transmission, are provided. An operating device 15 for dispatching a control signal is connected to the other end of the signal line 3. The hose 2 has shape retaining properties so that it can convey the fluid in the state of being wound around the rotating member 5. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a fluid transport device suitable for transporting a pressure fluid such as a liquid or a gas sent from a hydraulic device or a pneumatic device.
[0002]
[Prior art]
For example, a fire extinguishing fluid transfer hose mounted on a reel of a fire engine is drawn out of the reel at a fire site, and one end thereof is connected to a water supply port of the fire engine. Thereafter, the fire extinguishing fluid discharged by the pump of the fire engine is jetted from the nozzle attached to the other end of the hose toward the fire occurrence location.
[0003]
A generally used fire extinguishing fluid transfer hose is formed by covering a cloth body with a thin rubber, a synthetic resin, or the like. Since such a hose has no shape-retaining property, its cross section is deformed flat when wound on a reel. Since the fire extinguishing fluid cannot be transported in such a flat cross section, it is necessary to completely draw out the hose from the reel during use. However, the length of one hose was limited because the time required to completely unwind the hose from the reel would delay the fire fighting activity. Therefore, when the transfer distance of the fire extinguishing fluid is long, a plurality of hoses are connected via a joint.
[0004]
It has also been proposed to provide an operating device near a nozzle for extinguishing a fire extinguishing fluid attached to the hose, and to control devices such as a pump for sending out a fire extinguishing fluid by operating the operating device. In this case, it has been proposed to attach a signal line to a hose or use a wireless device in order to transmit a signal from the operating device to the device to be controlled.
[0005]
[Problems to be solved by the invention]
When the conveying distance of the fire extinguishing fluid is long, conventionally, a plurality of hoses are connected via a joint as described above. Therefore, when attaching a signal line to the hose, if the conveying distance of the fire extinguishing fluid is long, a plurality of signal lines connected to each other via electrical contacts at the joint are required. However, at a fire site, the connection of hoses is urgent, and the joints are handled rough. As a result, poor contact of the electrical contacts at the joint is likely to occur, and as the number of joints increases, the reliability of signal transmission decreases. Therefore, the hose to which the signal line is attached has not been put to practical use. Also, when transmitting signals to controlled equipment using wireless devices, wireless devices are often used for voice communication of fire conditions and security conditions at fire sites, so there is a high possibility that interference will occur. There is a problem of lack of sex.
An object of the present invention is to provide a fluid transfer device that can solve the above-mentioned problems.
[0006]
[Means for Solving the Problems]
A fluid transfer device according to the present invention includes a hose, a signal line attached to the hose such that a longitudinal direction thereof extends along the longitudinal direction of the hose, a rotating member capable of winding and unwinding the hose together with the signal line, and a rotating member thereof. A rotatable support member, a pipe connector for connecting one end of a hose wound around the rotating member to a fluid transfer pipe, and a signal transmission wire for connecting one end of a signal line wound with the hose around the rotating member. And an operation device for transmitting a control signal is connected to the other end of the signal line, and the hose has a shape-retaining property so as to be able to convey a fluid while being wound on the rotating member. It is characterized by having.
Since the hose in the fluid transfer device of the present invention has a shape-retaining property when wound on a rotating member, a plurality of hoses connected via joints are not required even when the fluid transfer distance is long. Therefore, by attaching a signal line to the hose, a plurality of signal lines connected via electrical contacts at the joint are not required. That is, even if the fire extinguishing fluid transfer distance by the hose is long, the signal can be reliably transmitted by the signal line.
[0007]
It is preferable that a cover for covering the hose is provided, and the signal line is attached to the hose by being disposed between the cover and the hose.
Thus, the signal line can be protected by the cover and easily attached to the hose.
[0008]
The piping connector includes a member that rotates together with the rotating member and is connected to one end of the hose, and a member that is rotatably connected to the member and that is detachably connected to the fluid transfer pipe. Fluid is transferred between the hose and the fluid transfer pipe via both members, and the signal transmission wiring rotates together with the rotating member and a member to which one end of the signal line is connected, A joining member that is connected to the member so as to be relatively rotatable and to which the signal transmission line is detachably connected, and that electrically connects the signal line and the signal transmission line between the two members; Is preferably provided.
With this, the hose connected to the fluid transfer pipe and the signal line connected to the signal transmission wiring can be wound or unwound by the rotating member, and the hose can be wound or unwound while performing the winding or unwinding. The workability can be improved because the fluid transfer pipe can be attached and detached, and the signal line and the signal transmission wire can be attached and detached.
[0009]
A fire extinguishing water discharge pump connected to the fluid transport pipe, a fire extinguishing agent tank connected to the fluid transport pipe via a switching mechanism, and a fire extinguishing fluid ejection nozzle connected to the other end of the hose. A control device connected to the switching mechanism and the signal transmission wiring, and the control device switches the switching mechanism from the fire-extinguishing agent tank to the fluid conveyance in response to a control signal transmitted by operating the operation device. It is preferable to be able to switch between a state in which the fire extinguishing agent is supplied to the supply pipe and a state in which the supply is shut off.
At a fire extinguishing site, a firefighter with a nozzle quickly determines whether to spray water only or a chemical as a fire-extinguishing fluid at the location of the fire, and switches the type of fire-extinguishing fluid according to the judgment. It is desired. According to this configuration, the request can be answered by switching between a state in which the fire extinguishing agent is supplied from the fire extinguishing agent tank to the fluid transfer pipe and a state in which the supply is shut off by operating the operation device.
[0010]
BEST MODE FOR CARRYING OUT THE INVENTION
FIG. 1 shows a fluid transport device 1 mounted on a fire engine, which transports a fire extinguishing fluid as a fluid. The fluid transfer device 1 includes a fire extinguishing fluid transfer hose 2. As shown in (1) and (2) of FIG. 2, a signal line 3 is attached to the hose 2 so that its longitudinal direction is along the longitudinal direction of the hose 2. In the present embodiment, the hose 2 is covered with a tubular cover 4, and the signal line 3 is attached to the hose 2 by being disposed between the inner periphery of the cover 4 and the outer periphery of the hose 2.
[0011]
The hose 2 can be wound and fed out by a reel (rotating member) 5 together with the signal line 3. As shown in FIG. 3, the reel 5 has a hollow shaft 5a and a pair of flanges 5b attached to the shaft 5a. The hose 2 is wound around the shaft 5 a together with the signal line 3. The reel 5 is rotatably supported by a support member 6 via a bearing 7 about the axis of the shaft 5a. The hose 2 has a shape-retaining property so that the fluid can be transported while being wound on the reel 5, and can maintain a circular cross section as shown in FIG. As the hose 2 having such a shape retaining property, a known hose molded from a thick and rigid rubber or synthetic resin can be used.
[0012]
A pipe connector 9 for connecting one end of the hose 2 wound around the reel 5 to the fluid transfer pipe 8 is provided. In this embodiment, the pipe connector 9 is disposed at one end of the shaft 5a, rotates together with the shaft 5a, and is connected to one end of the hose 2 and connected to the member 9a so as to be relatively rotatable. And a member 9b to which the fluid transfer pipe 8 is detachably connected, and the fluid is transferred between the hose 2 and the fluid transfer pipe 8 via both members 9a and 9b.
[0013]
A wiring connector 11 for connecting one end of the signal line 3 wound around the reel 5 together with the hose 2 to the signal transmission wiring 10 is provided. In the present embodiment, the wiring connector 11 is disposed at the other end of the shaft 5a, rotates together with the shaft 5a, and is connected to one end of the signal line 3 so as to be relatively rotatable to the member 11a. And a member 11b to which the signal transmission wiring 10 is detachably connected and which electrically connects the signal line 3 and the signal transmission wiring 10 between the two members 11a and 11b. Such a joining mechanism (not shown) is provided.
[0014]
The other end of the hose 2 is connected to a fire extinguishing fluid jet nozzle 14. An operation device 15 for transmitting a control signal is connected to the other end of the signal line 3. As the operation device 15 itself, a known device that transmits a predetermined control signal by operating a switch can be used. In the present embodiment, the operation device 15 is attached to the fire extinguishing fluid ejection nozzle 14.
[0015]
A fire extinguishing water discharge pump 17 mounted on a fire engine is connected to the fluid transfer pipe 8, and a fire extinguishing agent tank 19 is connected via a switching mechanism 20.
[0016]
A control device 21 is connected to the signal transmission wiring 10, and a switching mechanism 20 is connected to the control device 21. The control device 21 causes the switching mechanism 20 to supply the fire-extinguishing agent from the fire-extinguishing agent tank 19 to the fluid transport pipe 8 in response to a control signal transmitted by the operation of the operation device 15 and to shut off the supply. And can be switched between. In the present embodiment, the switching mechanism 20 includes an electromagnetic on-off valve 20a and a mixing device 20b. The electromagnetic opening and closing valve 20a opens and closes between the fire extinguishing agent tank 19 and the mixing device 20b by being driven by the control device 21. The mixing device 20b has a built-in pump driven by the control device 21 so as to suck the extinguishing agent from the extinguishing agent tank 19 when the electromagnetic opening / closing valve 20a is opened. The discharge pressure of the fire-extinguishing fluid can be controlled by controlling the output of the engine E that drives the fire-extinguishing water discharge pump 17 by the control device 21 by operating the operation device 15.
[0017]
According to the fluid transfer device 1, since the hose 2 has a shape retaining property so that the fire extinguishing fluid can be transferred even when wound on the reel 5, even if the fluid transfer distance is long, the plurality of hoses 2 are connected via the joint. No hose is required. Thus, by attaching the signal line 3 to the hose 2, a plurality of signal lines connected via electrical contacts at the joint are not required. That is, even when the fire extinguishing fluid transfer distance by the hose 2 is long, the signal can be reliably transmitted through the signal line 3. The signal line 3 is protected by the cover 4 and can be easily attached to the hose 2. Also, by connecting one end of the hose 2 to the fluid transfer pipe 8 via the pipe connector 9 and connecting one end of the signal line 3 to the signal transmission wiring 10 via the wiring connector 11, the fluid transfer pipe 8 And the signal line 3 connected to the signal transmission wiring 10 can be wound or unwound by the reel 5, and can be wound or unwound while performing the winding or unwinding. Since the pipe 8 can be attached and detached, and the signal line 3 and the signal transmission wiring 10 can be attached and detached, workability can be improved. Further, at the fire extinguishing site, the firefighter having the fire extinguishing fluid jet nozzle 14 quickly determines whether to spray water alone or a chemical together with the fire extinguishing fluid at the fire occurrence location, and operate according to the judgment. By operating the device 15, the type of the fire extinguishing fluid can be switched to a state in which the fire extinguishing agent is supplied from the fire extinguishing agent tank 19 to the fluid transfer pipe 8 or a state in which the supply is cut off.
[0018]
The present invention is not limited to the above embodiment. For example, the method of attaching the signal line to the hose is not particularly limited. Alternatively, only the fire extinguishing fluid may be water, and only the fire extinguishing water discharge pump may be controlled by the operating device via the control device. Further, the fluid transported by the fluid transport device of the present invention is not limited to the fire extinguishing fluid, but may be another liquid or gas.
[0019]
【The invention's effect】
ADVANTAGE OF THE INVENTION According to the fluid conveyance apparatus of this invention, while conveying a fluid by a hose and transmitting a signal by the signal line attached to the hose, there is no need for a complicated structure and no delay in work. Signals can be transmitted reliably, and can also contribute to fire fighting activities.
[Brief description of the drawings]
FIG. 1 is a configuration explanatory view of a fluid transfer device according to an embodiment of the present invention. FIG. 2 is a cross-sectional view of a hose, a signal line, and a cover in the fluid transfer device of the embodiment of the present invention, and FIG. FIG. 3 is a cross-sectional view of a reel in the fluid transfer device according to the embodiment of the present invention.
DESCRIPTION OF SYMBOLS 1 Fluid transfer device 2 Hose 3 Signal line 4 Cover 5 Reel (rotating member)
Reference Signs List 6 Supporting member 8 Fluid transport pipe 9 Piping connector 10 Signal transmission wiring 11 Wiring connector 14 Fire extinguishing fluid jet nozzle 15 Operating device 17 Fire extinguishing water discharge pump 19 Fire extinguishing agent tank 20 Switching mechanism 21 Control device

Claims (4)

Hose and
A signal line attached to the hose so that its longitudinal direction is along the longitudinal direction of the hose,
A rotating member capable of winding and unwinding the hose together with the signal line,
A supporting member that rotatably supports the rotating member,
A pipe connector for connecting one end of a hose wound around the rotating member to a fluid transfer pipe,
A wiring connector for connecting one end of the signal line wound with the hose to the rotating member to the signal transmission wiring,
An operating device for transmitting a control signal is connected to the other end of the signal line,
A fluid transfer device, wherein the hose has a shape-retaining property so as to be able to transfer a fluid while being wound around the rotating member. The fluid transfer device according to claim 1, further comprising a cover that covers the hose, wherein the signal line is attached to the hose by being disposed between the cover and the hose. The piping connector includes a member that rotates together with the rotating member and is connected to one end of the hose, and a member that is rotatably connected to the member and that is detachably connected to the fluid transfer pipe. Having, fluid is transferred between the hose and the fluid transfer pipe via both members,
The signal transmission line rotates together with the rotating member and is connected to one end of the signal line. The signal transmission line is rotatably connected to the member and the signal transmission line is detachably connected to the member. The fluid conveyance device according to claim 1, further comprising a member, and a joining mechanism that electrically connects the signal line and the signal transmission wiring between the two members. Fire extinguishing water discharge pump connected to the fluid transfer pipe,
A fire extinguisher tank connected to the fluid transport pipe via a switching mechanism,
A fire extinguishing fluid jet nozzle connected to the other end of the hose,
Comprising a control device connected to the switching mechanism and the signal transmission wiring,
The control device switches the switching mechanism between a state in which the fire extinguishing agent is supplied from the fire extinguishing agent tank to the fluid transfer pipe and a state in which the supply is shut off in response to a control signal transmitted by operating the operation device. The fluid transport device according to any one of claims 1 to 3, which is possible.

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