JPH01101293A - Recovery device of inspection instrument - Google Patents

Abstract

PURPOSE:To reduce the price of an instrument by mounting the guide of a communication guide, a rod, a spring pressing the rod against an engaged part, a means for moving the rod in the opposite direction to the movement, a stopper preventing the rod from moving, and a detector. CONSTITUTION:When a recovery equipment is thrown into the sea with a crane with the chamber of a hydraulic cylinder 31 low in pressure and a contactor contacts a sailing body 10, a detector is lifted to elevate the stopper 28 connected thereto. As a result, a rod 35 passes through an opening 26a by the load of a spring 32, projecting toward a lifting tool 11 to engage therewith. On the contrary, when the recovery equipment is lifted up with the crane, the rod 35 is engaged with the lower face of a flange 11b so that the sailing body 10 is also lifted. The sailing body 10 is lowered on an accomodation table, the rod 35 is lowered and separated from the flange 11b. Under such condition, when a hydraulic pump is connected to a connection port 31a and the rod 35 is retired by supplying pressure oil, the detector is lowered due to its own weight and a stopper 28 is also lowered to close the opening 26a. Therefore, the entire operation can be executed mechanically, whereby reducing the price of the recovery equipment.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a device for lifting survey equipment placed into the sea to a ship for conducting seabed or underwater surveys.

[Conventional technology]

Survey equipment (called a navigation vehicle) placed into the sea is pulled by a ship to investigate the underwater situation.

Once the investigation is complete, the vehicle must be returned to the ship. Since the vehicle is connected to the crane installed on the ship via a communication cable, it is not possible to pull the vehicle close to the ship. can. However, since the communication cable is small in diameter,
It is not possible to pull it up, so a lifting device (hook) of a crane dedicated to lifting it is hooked to the vehicle and used to lift it.

The work of hooking the lifting equipment (hook) of the crane to the vehicle is done manually.

Such a vehicle is shown in the collection of ships and aircraft, 1985 edition, pages 109-110, published by the Japan Maritime Self-Defense Newspaper Company. [Problems to be solved by the invention] Retrieving the vehicle At this time, the work of hooking the hanging device (hook) to the craft is done manually, which is extremely dangerous. Furthermore, since it is done manually, it is difficult to perform it underwater, where there is little influence from waves, during stormy weather.

Therefore, at the time of recovery, the recovery device suspended by a crane is lowered from above the vehicle and placed on the vehicle, and the retaining device is operated to engage the engaging portion of the vehicle. After that, it may be possible to lift it up with a crane.

However, in this one, in order to engage the engagement device,
It is necessary to detect that the recovery device is placed on the vehicle, and then operate the engagement device based on this detection signal.

This requires an electrical circuit in the recovery equipment that is put into the sea. In addition, it is possible to use an air cylinder or hydraulic cylinder as the engagement device of the zero recovery device, which requires a power cable in addition to the a-pu between the crane and the recovery device, to eliminate the need for a power source. A hose is required to supply driving fluid between the crane and the crane.

This makes these means expensive.

An object of the present invention is to provide an inexpensive collection device.

[Means for solving problems]

The above purpose is to provide a guide for vertically penetrating a communication cable, a rod that moves horizontally near the guide, a spring that presses the rod toward the engagement part of the investigation equipment, and a rod that is driven by the spring. means for moving the rod in a direction opposite to the moving direction; a stopper that is provided to be movable up and down and prevents the rod from moving toward the engaging portion when descending; and a detection device that detects when the rod is placed on the vehicle. This is accomplished by constructing a collection device with a detector that is vertically movable and connected to the stopper.

[For production]

The recovery device is dropped into the sea with the pressure in the chamber of the cylinder device reduced. When the recovery device is placed on the vehicle, the detector rises and the stopper rises, so the rod is moved by the spring force of the investigation equipment. It protrudes toward the engaging portion and engages with it. After that, the rod is moved back by applying hydraulic or pneumatic pressure to the chamber of the cylinder device after the recovery device is recovered to the ship.

The stopper descends and returns to its initial state.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 9.

A navigation object 10 such as research equipment is thrown into the sea from a ship 1 via a communication cable 3, and is moved under the sea as the ship runs. When recovering the vehicle 10, the crane 5 of the ship 1 is used.
The communication cable 3 is wound up using a crane 5 and lifted up by a crane 5. The vehicle 10 has a circular cross section and has a connecting portion with the communication cable 3 at the upper part of the longitudinal center. The connecting portion is a hanging tool 11 used when recovering the mobile vehicle 10.

The hanging tool 11 has the same cylindrical shape as the cable 3, and the upper end 11
a has a tapered shape and has an outwardly projecting flange llb in the middle between the upper and lower ends. This 7-lunge llb becomes an engaging portion when recovering the mobile vehicle 10.

Reference numeral 20 denotes a recovery device used when recovering the mobile vehicle 10, and is suspended from the crane 8 of the ship 1 via a rope 9. Crane 8 operates together with crane 5.

The recovery device 20 is inserted into the water when recovering the vehicle lO, guided by the cable 3, lowered, and placed on the vehicle 10.
Then, the engagement device of the recovery device 20 is connected to the lifting device 11 of the vehicle lO.
When the crane 5.
8 to lift it up and lower it onto the deck of the ship.

The configuration of the collection device 20 will be explained. Spherical guides 23 are installed on the lower surface of the four corners of the square frame 21 when viewed from above. The spherical guide 23 is installed so as to be vertically movable via a spring 24, and can rotate horizontally.

The left and right beams 21b, 21b of the frame 21 are connected by two beams 21c, 21c.

The cable 3 passes between these two beams 21c, 21c.

There are two lobes 9 for hoisting the recovery device 20, each connected to the beam 21c via metal fittings 28 and 28.

It is connected to the upper surface of 21c. The metal fittings 28.28 are installed at the center of the beams 21c, 21c in the longitudinal direction.

A cylindrical guide 26 through which the cable 3 and the hanging tool 11 pass is erected between the two beams 21c, 21c. The guide 26 is attached to the beams 21c, 21C.

The upper and lower ends of the guide 23 are enlarged in a trumpet shape. Beams 21c, 21cG;: On the side surfaces of the opposing guides 26 are square openings 26 through which the attachment/detachment rod 35 enters and exits.
A is provided. The guides 26 are appropriately attached to the upper and lower surfaces of the beam 21c. 21d is the guide 26 and the metal fittings 2
8 to the beam 21c.

A guide 2 is provided between the guide 26 and the beams 21c, 21c.
A stopper ring 28, which is concentric with 6, is arranged to be vertically movable. This stopper ring 28 closes the opening 28a when it is lowered, and opens the opening 26a when it rises, allowing the rod 35 to enter.

31 is a hydraulic cylinder of the holding device 30, which is installed horizontally on each beam 21b. Hydraulic cylinder 31
The rod 35 is installed at the tip of the rod. A compression spring 32 is built in a chamber on the side opposite to the rod of the hydraulic cylinder 31, and is used to cause the rod to protrude. This spring side chamber is sealed and contains air. The chamber on the rod side of the hydraulic cylinder 31 is provided with a detachable hose (not shown) connected to a hydraulic pump (not shown).

When the hose is removed, the hose connection port 31a of this oil chamber is closed. The hose is connected only when the recovery device 20 is raised to the deck of the ship 1.
The hose is not connected when ilo is put into water, and the pressure in the oil chamber is lowered when it is put into water. Therefore, the rod 35 is pressed toward the stopper ring 28 by the spring 32.
The tip of 5 is pressed against the side surface of the stopper ring 28. Note that the oil chamber of the hydraulic cylinder 31 contains oil.

The rod 35 is supported by a beam 21e that connects the beams 21c and 21c. The longitudinal section of the rod 35 at the portion that enters the opening 26a is square. The lower surface of the flange 11b of the hanging tool 11 rests on the upper surface of this square.

At the center of the front and rear beams 21a, 21a of the frame 21, a detector 40 for detecting whether or not the recovery device 20 is placed on the vehicle 10 is installed vertically movably. The detector 40 consists of a rod 41 that moves the beam 21a up and down, a spherical contact 42 installed at the lower end of the rod 41, and an L-shaped bracket 43 that connects the stopper ring 28 and the rod 41.

Therefore, as the contactor 42 rises, the stopper ring 2
8 rises.

As shown in FIG. 6, the stopper ring 28 is half-shaped, and the tip of the bracket 43 is connected to the two half-shaped stopper rings 2.
8.Pinch with the mounting piece at the end of 28.

They are connected with bolts 45. The end of this bracket 43 is inserted into a guide 46 provided on the beam 21c.

The beams 21b, 21b of the frame 21 are parallel to the axis of the vehicle 10, and the beams 21a, 21b are oriented in a direction perpendicular to the axis of the vehicle 10.

Therefore, the contactor 42 contacts the top surface of the vehicle 10, and the spherical guide 23 contacts the arcuate slope.

When the recovery device 20 is lowered toward the vehicle 10, the contactor 42 first contacts the vehicle 10, and then the spherical guide 2
3 is provided so as to be in contact with the mobile vehicle 10.

When the contactor 43 contacts the vehicle 10, the stopper ring 28 rises, and the rod 35 passes through the opening 26a. The position of the rod 35 in this state is
is well below the lower surface of flange llb. Thereby, the rod 35 and the flange flb can be reliably engaged.

Next, the recovery work for the vehicle 10 will be explained.

First, after lowering the oil pressure in the oil chamber of the hydraulic cylinder 31,
Since the cable 3 passes through the guide 26 of the zero recovery device 20 that lowers the recovery device 20 using the crane 8, the recovery device 20 descends toward the mobile vehicle 10.

The vehicle is stopped in the sea where it is less affected by waves.

When the contactor 42 descends and comes into contact with the vehicle lO, the stopper ring 28 rises, and the rod 35, which had been stopped by the stopper ring 28, passes through the opening 26a by the spring 32 and is directed toward the hanging tool 11. stand out.

When descending further, the spherical guide 23 hits the vehicle 10. The shock at this time is alleviated by the spring 24.

As shown in FIG. 9, when the recovery device 20 is lowered, it is tilted with respect to the axis of the vehicle 10 (the beam 21a is tilted at an angle O with respect to the axis). When the rod 35 is protruded in this state, the rod 35
However, the flange ttb cannot be properly engaged with the flange ttb.

However, since the spherical guide 23 hits the arcuate slope of the vehicle, the slope is corrected.

Next, when the recovery device 20 is raised using the crane 8, the rods 35, 35 engage with the lower surface of the flange flb,
The vehicle 10 is also lifted.

After lifting the recovery device 20 and the vehicle 10 in this manner, the vehicle 10 is lowered onto the storage platform for the vehicle on the deck of the ship 1.
is placed on the deck, the rod 35 is lowered relative to the flange flb. That is, the rod 35 separates from the flange llb.

In this state, a hydraulic pump is connected to the connection port 31a to supply pressure oil, and the rod 35 is moved back.

Next, the recovery device 20 is lifted using the crane 8. Then, since the detector 40 descends due to its own weight, the stopper ring 28 descends and closes the opening 26a.

Next, after reducing the pressure in the oil chamber of the hydraulic cylinder 31,
This is to remove the hose.

As described above, all operations of the engagement device can be performed mechanically. Therefore, there is no need for a power cable or a hose between the recovery device 20 and the crane 8, and the cost can be reduced.

Since the oil in the oil chamber of the hydraulic cylinder is at low pressure and in a small amount, pollution of the sea in the event of breakage can be minimized.

Note that the number of cylinder devices 31 and rods 35 is determined by the shape of the engaging portion. The cylinder device 31 may be an air cylinder.

The spring 32 may not be built into the cylinder device 31, but may be provided between the cylinder device 31 and the rod 35.

The embodiment shown in FIG. 10 will be explained. This is provided with a lever 50 using the rod 35 as a return means. lever 50
is rotatably provided on the beam 21a, and the U-shaped engagement portion 51a at the tip engages with the convex portion 35c at the rear end of the rod 35. The spring 32 is arranged between the protrusion 35b on the tip side of the rod 35 and the beam 21a. rod 3
5 is moved backward by pushing the handle at the other end 50b of the lever 50.

〔Effect of the invention〕

According to the present invention, engagement with the investigation equipment can be performed by mechanical force, eliminating the need for power cables and pressure source hoses.
It can be done inexpensively.

[Brief explanation of the drawing]

FIG. 1 is an overall configuration diagram of an embodiment of the present invention, FIG. 2 is a plan view of a recovery device of an embodiment of the present invention, and FIG.
-3 perspective view, Fig. 4 is a 4-4 sectional view of Fig. 2, Fig. 5 is a 5-5 sectional view of Fig. 2, Fig. 6 is a 6-6 sectional view of Fig. 4,
Figure 7 is a view equivalent to Figure 4 with the attachment/detachment device gripping the vehicle, and Figure 8 is a view of the 5r with the attachment/detachment device gripping the vehicle.
I! J equivalent diagram. FIG. 9 is a plan view illustrating the positional relationship between the attaching/detaching device of the present invention and the vehicle, and FIG. 10 is a longitudinal sectional view of a main part of another embodiment of the present invention. 1------1 ship, 3------1 communication cable, 5
, 8----11 crane, 9-----1 rope, 1
0-1----Vehicle (survey equipment), 1lb----
--Flange, 20-----Once, collection device, 21--
----Frame, 23, 28-1---Guide,
28a----guide, 28-11111 stopper,
30---m-engaging device, 31----one shilling device, 31a----hose connection port, 32----
--Spring, 35-----One rod, 40-----One detector 2nd vA I3 Prisoner Zj-11-3He 1 Illusion 'f4F' 42----1st edition J
Kamachi 4th Figure 45 Prisoner 36 Off Figure J-11-γid, ff---#Miyakochi 2 Game - Person To 7 Part 1.3----Bracket Too I Figure

Claims (1)

[Claims] 1. A guide through which a communication cable passes in the vertical direction, a rod that moves horizontally in the vicinity of this guide, a spring that biases the rod toward the engaging part of the investigation equipment, and a means for moving the rod in a direction opposite to the moving direction; and a means for moving the rod in a vertically movable manner and engaging the rod in order to prevent the rod from moving toward the engaging portion when descending; comprising a stopper that disengages from the rod when rising; a detector connected to the stopper and in contact with the investigation equipment; the rod, the spring, the cylinder device, the stopper, and the guide;
An investigation equipment recovery device consisting of a frame that can be hung from a crane rope.