JP2001151474A - Elevating device for underwater observation device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevating device for an underwater observation device capable of obtaining data continuous in time and position by moving an underwater observation device to an arbitrary depth of water and being easily collected after a measurement is finished. SOLUTION: This elevating device 1 for an underwater observation device elevates/lowers the underwater observation device by being moored at a fixed position in the water. A drum 23 for winding or delivering a rope 10 for elevating/lowering linked with the underwater observation device on which a floating body is mounted, a circuit 29 connected with an underwater motor 22 connected with the drum 23 controlling winding and delivering of the rope 10 for elevating/lowering and a power source 26 connected with the control circuit 29 are fixed to a frame 11 having a separate floating body 13. The frame 11 is linked with a weight to be sunk at a water bottom by a rope 33 for mooring.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lifting device for an underwater observation device which is used for underwater observation in oceans, lakes, marshes, rivers, dams, etc., and which raises and lowers an underwater observation device to an arbitrary depth.

[0002]

2. Description of the Related Art Water depth, water temperature, chlorophyll concentration,
Underwater observation is performed to obtain data such as salinity and pH. In underwater observation, it is important to obtain observation data that is continuous in time and position.

[0003] In order to obtain observation data at a continuous depth at an observation point, underwater observation was performed by hanging an underwater observation device from a ship with a rope, but the ship had to be anchored for a long period of time. In addition, many underwater observation devices are attached to one rope with a buoyant body at one end, and underwater observations moored underwater are also performed, but mutual correction of the devices is required to guarantee data reliability Operation was complicated.

Japanese Patent Application Laid-Open No. 08-221681 discloses an apparatus that can automatically raise and lower an underwater observation device using a winch that winds a rope connected to an underwater observation device with a floating bag attached. . This device is
It is installed and used on the bottom of the water. When performing underwater measurement of the surface layer at a point where the water depth is 500 m or more, the length of the rope from this device to the underwater observation device becomes longer, so it is necessary to improve buoyancy, rope strength, and winch performance.
In addition, underwater observation equipment is easily washed away by the influence of the tide,
The difference from the data in the vertical direction that should be measured becomes large. In addition, in order to collect the underwater observation equipment and the elevating device with the floating bag under the water, it is necessary to hook up with a rope or a net and pull it up, which requires a great deal of labor.

[0005]

DISCLOSURE OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is possible to obtain continuous data in time and position by moving an underwater observation device to an arbitrary water depth, It is still another object of the present invention to provide a lifting device for an underwater observation device that can be easily collected after the measurement is completed.

[0006]

The lifting device 1 of the underwater observation equipment of the present invention, which has been made to achieve the above object, will be described with reference to FIG. 1 corresponding to the embodiment. A device for mooring and raising and lowering the underwater observation equipment 41 (see FIG. 2). The drum 23 winds or unwinds the lifting rope 10 connected to the underwater observation equipment 41 to which the buoyant body 40 is attached. A connected underwater motor 22 is connected to a circuit 29 for controlling winding and unwinding of the lifting rope 10, and a power supply 26 connected to the control circuit 29 is fixed to a frame 11 having another buoyant body 13. Is connected to a weight 46 submerged in the water bottom by a mooring rope 33.

[0007] A device 45 for cutting the mooring rope 33 is attached to this device. After the completion of the underwater measurement, when the mooring rope 33 is divided by the dividing device 45, the measuring device 41 and the lifting device 1 float on the water surface by the buoyancy of the buoyant bodies 13 and 40, and can be easily collected.

As shown in FIG. 3, the lifting device 1 is provided with a sensor 61 for detecting the tension of the lifting rope 10 attached to the lifting rope 10, and a limit switch 51 which operates to feed out when the sensor 61 comes into contact with the sensor 61. Frame 11
And is connected to the control circuit 29. If the buoyant body 40 attached to the underwater observation device 41 rises to the surface of the water during the extension of the lifting rope 10, the sensor 61 detects a loosening of the tension of the lifting rope 10 and stops the extension. This can prevent the elevating rope 10 from being entangled with the drum 23 or the like.

A stopper 50 indicating the limit of winding is attached to the lifting rope 10, and a limit switch 51 for stopping winding by contact with the stopper 50 is fixed to the frame 11 and connected to the control circuit 29. . Thereby, excessive winding can be prevented.

The buoyant members 13 and 40 are not crushed by water pressure, and may be, for example, resin balls, glass balls, or the like.

The underwater measuring device 41 includes a water temperature gauge, a water depth gauge, a salt meter, a pH sensor, a dissolved oxygen meter, a chlorophyll concentration meter, a spectrophotometer, a flow direction current meter, a turbidity meter, and a posture sensor.

The use of the lifting device 1 makes it possible to obtain temporally and spatially continuous data at an arbitrary water depth. Further, the underwater observation device 41 and the lifting device 1 are easily collected.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail. FIG. 1 shows a perspective view of an embodiment of a lifting device 1 of an underwater observation device to which the present invention is applied.

As shown in FIG. 1, a lifting device 1 for an underwater observation device has a buoyant body 1 for a frame above a frame 11.
A winch 2 on which a drum 23 for winding or unwinding the elevating rope 10 is disposed, a control circuit 29, and a power supply 26 are mounted on a lower portion of the frame 11.

The frame 11 is made of stainless steel, and is composed of four pipes which are fixed to each other by ring-shaped pipes and are curved and converged at the upper part. A buoyant body 1 for a frame surrounded by the frame 11 and through which a lifting rope 10 penetrates.
3 is an upper support plate 12 fixed on the upper part of the frame 11
And a lower support plate 16 fixed to the frame 11 by a turnbuckle 15 and fixed.

The lifting rope 10 has a built-in magnet and a resin stopper 50 which indicates the limit of winding (see FIG. 3).
Is attached. A limit switch 51 having a built-in reed switch 52 for stopping winding or unwinding is attached to an upper portion of the frame 11. Wirings 53a and 53b connected to the control circuit 29 are connected to the reed switch 52. In the hole 60 of the buoyancy body 13 for the frame, a sensor 61 for detecting the tension is attached to the lifting rope 10. The sensor 61 includes a magnet 62 and a roller protruding between two rope guides 64 having an upper lid 63 through which the lifting rope 10 penetrates and a lower lid 67 through which the lifting rope 10 penetrates attached to both ends. 66.

In the winch 2, a drum 23 for winding or unwinding the elevating rope 10 is sandwiched between side plates 24 fixed on a bottom plate 25 below the frame 11.
2 is connected to the drum 23 through the side plate 24,
It is placed on the bottom plate 25 of the frame 11. Drum 2
A lifting rope 10 is wound around 3.

A control circuit 29 for winding and unwinding the lifting rope 10 is connected to the reed switch 52 of the limit switch 51 and the sonar 43,
7. The control circuit 29 includes a clock 70. The control circuit 29 is connected to the power supply 26 and the underwater motor 22 (see FIG. 4). The pressure container 27 and the power supply 26 are mounted on the bottom plate 25.

A support bar 31 connected to a U-shaped handle 30 at the bottom of the frame is connected to a connector 32. Joiner 32
Is connected to a mooring rope 33.

As shown in FIG. 2, the lifting rope 10 of the lifting device is connected to an underwater observation device 41 to which a buoyancy body 40 for a measuring device is attached. Sonars 42 and 43 are attached to the underwater measuring device 41 and the elevating device 1, respectively. The mooring rope 33 is connected to a weight 46 submerged in the water bottom. In the middle of the mooring rope 33, a cutting device 4
5 is attached. The cutting device 45 has a claw (not shown) for picking the mooring rope 33 by a spring, and opens the claw to break the mooring rope 33 by an ultrasonic instruction or a timer.

The elevation device 1 of the underwater observation equipment operates as follows. The mooring rope 33 having a predetermined length calculated from the water depth of the water bottom measured in advance at the measurement point and the water depth at which the underwater observation device 41 is raised and lowered is connected to the weight 46.

The number of rotations of the drum 23 for feeding or winding the lifting rope 10 of a required length for raising and lowering the underwater observation device 41, the start time of the lifting of the lifting rope 10, and the holding time in the state after the lifting. , The up / down cycle such as the holding time in the wound state is input to the control circuit 29.

At the measurement point, the weight 46 and the cutting device 4 connected in series by the mooring rope 33 and the lifting rope 10
5. The lifting device 1, the underwater observation device 41, and the buoyancy body 40 are sequentially put into the water from the ship.

At a predetermined time, the control circuit 29 is activated and turned on, and the electricity supplied from the power source 26
The underwater motor 22 starts to drive, the drum 23 rotates, and the lifting rope 10 is paid out. Then the underwater observation equipment 41
Starts floating by the buoyancy of the buoyancy body 40.

While the buoyancy body 40 attached to the underwater observation device 41 is below the water surface, the lifting rope 10 is pulled due to the buoyancy of the buoyancy body 40 as shown by the wavy line in FIG. It is pressed against the roller 66 of the sensor 61 by the tension. Due to the friction between the lifting rope 10 and the roller 66, the sensor 61 is pulled up and hits the limit switch 51. At this time, the reed switch 52 is brought into contact with the magnetic force of the magnet 62 of the sensor 61, and the wiring 53a and the wiring 53b are energized.
When the drum 23 rotates by the set number of revolutions and the lifting rope 10 is extended before the buoyant body 40 reaches the water surface, the control circuit 29 stops the underwater motor 22.

If the buoyancy body 40 rises to the surface of the water while the lifting rope 10 is being fed, the lifting rope 10
Is loosened as indicated by the solid line, and the friction between the roller 66 of the sensor 61 and the lifting rope 10 is eliminated. Then, the sensor 61 falls away from the limit switch 51 by its own weight, and the wiring 53a and the wiring 53b are disconnected. If there is no communication, the control circuit 29 stops the underwater motor 22. Thus, even when the buoyant body 40 rises to the water surface, the lifting rope 10 does not become entangled with the drum 23.

The lifting rope 10 is paid out and the underwater motor 2
When a predetermined holding time elapses after the stop of the motor 2, the control circuit 29 drives the underwater motor 22 to reversely rotate the drum 23 by a predetermined number of revolutions. Then, the lifting rope 10 is wound up.

While the lifting rope 10 is being wound,
The lifting rope 10 is pulled as shown by a dashed line due to the buoyancy of the buoyancy body 40, and the tension is used as a sensor 61.
Roller 66 is pressed. Then, the sensor 61 is pulled down to the stop claw 68 in the hole by the friction between the lifting rope 10 and the roller 66. At this time, the reed switch 52 is in a separated state, and the wiring 53a and the wiring 53b are disconnected. After the drum 23 rotates by the set number of revolutions and winds the elevating rope 10, the control circuit 29 stops the underwater motor 22.

During the winding of the lifting rope 10, the stopper 50 indicating the limit of winding is moved to the limit switch 5.
1, the reed switch 52 comes into contact with the magnetic force of the magnet of the stopper 50, and the wiring 5
3a and the wiring 53b are energized. Control circuit 2 when energized
9 causes the underwater motor 22 to stop. Thereby, since the lifting rope 10 is not excessively wound, the collision between the measuring device 41 and the lifting device 1 can be prevented.

Note that the sonars 42 and 43 may synchronize the ascending and descending start time with the measurement start time by the measuring device. Further, the distance between the lifting device 1 and the underwater observation device 41 is measured, and based on the distance, the control circuit 29 drives the underwater motor 22 to float or lower the underwater observation device 41 to a desired water depth. You may.

By repeating winding and unwinding of the lifting rope 10, continuous underwater observation data can be obtained.

When the underwater measurement is completed, when the spring of the cutting device 45 is released by the timer, the claw of the cutting device 45 is opened, and the mooring rope that has been picked is released. Then, the measuring device 41, the lifting / lowering device 1, and the dividing device 45 are connected to the buoyant bodies 13 and 40.
And is collected when it reaches the surface of the water.

According to the above embodiment, a water depth of 2 in Sagami Bay
Water temperature and depth up to 50 m were measured.

The lifting rope 10 was a Kevlar rope having a diameter of 2.3 mm, and the mooring rope 33 was a nylon tabular rope having a diameter of 10 mm. The underwater observation device 41 includes a water temperature meter NWT-SN (trade name of NOF Engineering Co., Ltd.) and a depth meter NWD-500 (NOF Engineering Co., Ltd.)
L-type separation device (trade name, manufactured by NOF Engineering Co., Ltd.) was used as the separation device 45.

In the same sea area, from the vicinity of the water surface to about 250 m,
Fig. 5 shows the result of one round trip elevating and lowering in 90 minutes, and measuring the water temperature.
Shown in

FIG. 6 shows the results of the water temperature measurement in the same sea area for 21 days, in which the water temperature was repeatedly increased and lowered once a day from the vicinity of the water surface to about 250 m.

Although the embodiment in which the drive time of the underwater motor 22 is set in the control circuit 29 has been described, the control circuit 29 may be controlled by a remote controller. Above the drum 23, a guide rod 21 and a rotating rod 20 are provided.
Winding tool 1 into which a lifting rope 10 is inserted and penetrates
9 is arranged, and the uniform winding tool 1 fitted in the bidirectional spiral groove 18 provided on the rotating rod 20 by the rotation of the motor 17
9 repeats reciprocating motion, and moves the lifting rope 10 to the drum 2
The layer 3 may be wound up in a layered manner.

[0038]

As described above in detail, the use of the underwater observation equipment lifting device according to the present invention makes it possible to move the underwater observation equipment to an arbitrary water depth and obtain temporally and positionally continuous underwater observation data. Obtainable. Further, the underwater observation device and its lifting device can be easily collected after the measurement.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of a lifting device of an underwater observation device to which the present invention is applied.

FIG. 2 is a schematic diagram showing a state in which a lifting device of an underwater observation device to which the present invention is applied is used.

FIG. 3 is a perspective view of a main part showing another embodiment of the lifting device of the underwater observation equipment to which the present invention is applied.

FIG. 4 is a block diagram showing a connection state of a lifting device of an underwater observation device to which the present invention is applied.

FIG. 5 is a graph showing a result of measuring a water temperature using a lifting device of an underwater observation device to which the present invention is applied.

FIG. 6 is a graph showing the results of another measurement of the water temperature using the lifting device of the underwater observation equipment to which the present invention is applied.

[Explanation of symbols]

1 is a lifting device, 2 is a winch, 10 is a lifting rope, 1
1 is a frame, 12 is an upper support plate, 13 is a buoyant body, 15
Is a turnbuckle, 16 is a lower support plate, 17 is a motor,
18 is a spiral groove, 19 is a uniform winding tool, 20 is a rotating rod, 2
1 is a guide rod, 22 is a submersible motor, 23 is a drum, 24
Is a side plate, 25 is a bottom plate, 26 is a power supply, 27 is a pressure-resistant container, 2
9 is a control circuit, 30 is a U-shaped handle, 31 is a support rod, 32 is a joint, 33 is a mooring rope, 40 is a buoyant body, 41 is an underwater observation device, 42 and 43 are sonars, 45 is a separating device,
6 is a weight, 50 is a stopper, 51 is a limit switch,
52 is a reed switch, 53a and 53b are wires, 60 is a hole, 61 is a sensor, 62 is a magnet, 63 is an upper lid, 64 is a rope guide, 66 is a roller, 67 is a lower lid, 68 is a stopper, and 70 is a clock. is there.

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[Procedure amendment]

[Submission date] August 24, 2000 (2008.2.
4)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims

[Correction method] Change

[Correction contents]

[Claims]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0006

[Correction method] Change

[Correction contents]

[0006]

The lifting device 1 of the underwater observation equipment of the present invention, which has been made to achieve the above object, will be described with reference to FIG. 1 corresponding to the embodiment. A device for mooring and raising and lowering the underwater observation equipment 41 (see FIG. 2). The drum 23 winds or unwinds the lifting rope 10 connected to the underwater observation equipment 41 to which the buoyant body 40 is attached. A circuit 29 to which the connected underwater motor 22 is connected to control winding and unwinding of the elevating rope 10 and a power supply 26 connected to the control circuit 29 are fixed to the frame 11 having another buoyant body 13 for elevating and lowering. Tension of lifting rope 10 on rope 10
Sensor 61 for sensing the
The limit switch 51 that activates the feed by contact is
It is fixed to the frame 11 and connected to the control circuit 29 (FIG.
3), the frame 11 is connected to the weight 46 sinking to the bottom of the water by the mooring rope 33.

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0008

[Correction method] Change

[Correction contents]

[0008] In the course of feeding of the temperature descending rope 10, the buoyant body 40 attached to the water observation equipment 41 floats up the water surface, the sensor 61 senses the slack of the tension of the lifting rope 10, stops feeding Let it. This can prevent the elevating rope 10 from being entangled with the drum 23 or the like.

Claims (4)

[Claims] 1. A device for raising and lowering an underwater observation device moored at a fixed position in water, comprising: a drum for winding or unwinding a lifting rope connected to the underwater observation device to which a buoyant body is attached; A circuit connected to a submersible motor connected to and controlling the winding and unwinding of the lifting rope, and a power supply connected to the control circuit are fixed to a frame having another buoyant body, and the frame is connected to the mooring rope. A lifting device for underwater observation equipment, which is connected to a weight that sinks to the bottom of the water. 2. The underwater observation equipment lifting apparatus according to claim 1, further comprising an instrument for cutting the mooring rope. 3. A sensor for sensing the tension of the lifting rope is attached to the lifting rope, and a limit switch for activating the extension by contact with the sensor is fixed to the frame and connected to the control circuit. The elevating device of the underwater observation equipment according to claim 1, wherein: 4. A stopper indicating the limit of winding is attached to the lifting rope, and a limit switch for stopping winding by contact with the stopper is fixed to the frame and connected to the control circuit. The elevating device for underwater observation equipment according to claim 1, wherein: