JPH0433194Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Prior Art] The present invention relates to an underwater cutting device for cutting a plurality of test materials at a desired depth underwater.

[Conventional technology]

Conventional disconnection devices often have a structure in which a weight is released using a gas generator using gunpowder, a melting plug that uses a lever principle, or an electric motor that drives a gear, hydraulic pressure, etc., and the weight is released at a desired depth underwater. The only cutting device for separating the test material is a modification of the above-mentioned weight releasing device, which has the disadvantage of having a complicated and large structure.

[Purpose of invention]

The present invention was made to solve the above-mentioned drawbacks, and its purpose is to provide a small and inexpensive underwater cutting device that can cut a plurality of test materials at a specific depth. .

[Structure of the idea]

To achieve this objective, the present invention comprises an actuating means operated by a change in water pressure or the passage of a set time, which is arranged side by side with the actuating means and has a cutting pin at one end and a kerf at a predetermined position. a separating body which is moved by water pressure, and which is interposed between the separating body and the actuating means and engages with the kerf so as to prevent movement of the separating body, and the actuating means operates. A drive mechanism equipped with a locking ball that releases the engagement with the cut groove and provided at the end of the test material, a stopper that locks each adjacent test material on the inside, and a connecting hole at both ends. It consists of a connecting band that can be opened and closed in the form of double doors and is biased in the opening direction by an elastic material. At the same time as engaging the test materials and closing them, overlapping the connecting holes at both ends of the connecting band and inserting the separation pin of the drive mechanism into the overlapping connecting holes, multiple test materials are connected, and a specific point in the water is connected. When the actuating means operates at depth and the engagement between the locking ball and the kerf is released, the separation body moves and the separation pin comes out of the connection hole, and the elastic material opens the connection band and removes the test material. Characterized by separation.

〔Example〕

Examples will be described below with reference to the drawings.

First, a first embodiment of an underwater cutting device according to the present invention will be described with reference to FIGS. 1, 2, and 3.

In the figure, reference numeral 1 denotes an openable and closable ring-shaped connecting belt, which is biased by an elastic material 2 so that it opens like a double door in the center, and has overlapping connecting holes 3 drilled at both ends.

Numeral 4 denotes fasteners, which are provided oppositely on both sides of the inner surface of the connecting band 1.

Reference numeral 5 denotes a test material such as a buoy, which is connected by the connecting band 1 via the stopper 4.

Reference numeral 6 denotes a housing of the drive mechanism 7, in which a separation hole 9 and a release hole 10 are bored in the center which are parallel to each other and communicated through a connecting hole 8.

Reference numeral 11 denotes a locking ball such as a steel ball, which has a diameter larger than the length of the communication hole 8 of the housing 6 and is movably arranged in the communication hole 8.

Reference numeral 12 denotes a cylindrical separation body, on the outer periphery of which the locking ball 1 is attached.
1 is formed into a cut groove 13 that can be moved in and out, and a separation pin 14 is provided protruding from one end, and the separation pin 14 is inserted into the separation hole 9 of the housing 6 so that only the separation pin 14 protrudes from the housing 6. Insert movably.

Reference numeral 15 denotes an O-ring, which is provided on the outer periphery of the separating body 12 in order to make the inside of the housing 6 airtight.

Note that the separation body 12 is held in the housing 6 so that no more than the separation pin 14 protrudes from the separation hole 9 of the housing 6, and the cut groove 13 of the separation body 12 is
The end on the separation pin 14 side is formed obliquely so that the locking ball 11 can be easily pressed and moved in the direction of the release hole 10 by the separation body 12.

Reference numeral 16 denotes an actuation means of the drive mechanism 7, and this actuation means is a cylindrical release body 1 movably arranged in the release hole 10 so as to be parallel to the separation body 12.
7 and an elastic body 18.

Here, an escape groove 19 for allowing the locking ball 11 to escape is formed on the outer periphery of the release body 17, and one end of the elastic body 18 is connected to the end of the release body 17 opposite to the separation pin 14. The release body 17 is urged by the elastic body 18 in the same direction as the direction in which the separation pin 14 projects.

Reference numeral 20 denotes an O-ring, which is provided on the outer periphery of the release body 17 in order to make the interior of the housing 6 airtight.

The depth of the escape groove 19 of the release body 17 is set to be greater than the difference between the diameter of the locking ball 11 and the length of the communication hole 8.

The spring constant K of the elastic body 18 is determined according to the desired depth D at which the test material 5 is to be separated, as shown in the following formula (a).

kX=D・S/10... (a) However, X is the displacement (constant) of the release body 17, and S is the cross-sectional area of the release body 17 (constant).

Furthermore, the locking ball 11 is small, and the air compression rate within the housing 6 is negligible.

The drive mechanism 7 configured in this way is provided at the end of the test material 5.

Next, to explain the operation of the above structure, as shown in FIG. 2, the connecting bands 1 are placed on the outer peripheries of the facing parts of the adjacent test materials 5, and the fasteners 4 of the connecting bands 1 are attached to the adjacent test materials 5, respectively. At the same time, the connecting holes 3 provided at both ends of the closed connecting band 1 are overlapped, and the drive mechanism 7 is inserted into the overlapping connecting holes 3 from the inside.
By inserting the separation pin 14 of the test material 5
Connect and fix them together.

Similarly, other adjacent test materials 5 are connected and fixed, thereby connecting and fixing a plurality of test materials 5.

When the connected test materials 5 are immersed in water, the release body 17 of the drive mechanism 7 in the state shown in FIG. 3 receives water pressure depending on the degree of subsidence, and the water pressure causes the release body 17 to become elastic. It is gradually pushed into the housing 6 while overcoming the resistance of the body 18.

On the other hand, as shown in FIG. 3, the separating body 12 of the drive mechanism 7 is not pushed into the housing 6 even if it receives water pressure from the outside because the locking ball 11 is caught in its kerf 13.

Furthermore, when the test material 5 sinks to the desired depth D set by the elastic body 18, the elastic body 18 is further compressed by water pressure, and the escape groove 19 of the release body 17 is compressed.
moves to the position of the communication hole 8 of the housing 6, and the communication hole 8
The locking ball 11 disposed in is pushed into the relief groove 19 of the releasing body 17 by the separating body 12 which is pressed into the housing 6 by water pressure.

At the same time, the locking of the separating body 12 by the locking ball 11 is released, and the separating body 12 is pushed deep into the housing 6 at a tremendous speed by water pressure.

As a result, the separation pin 14 of the separation body 12 comes out of the connection hole 3 of the connection band 1, and the connection band 1 is opened by the elastic material 2 to release the connection of the test material 5 and separate the test material 5.

Next, a second embodiment of the present invention will be described based on FIG. 4.

In this second embodiment, instead of the actuating means that is actuated by changes in water pressure, an actuating means that is actuated over time is provided, and the same parts as in the first example are given the same numbers. The explanation will be omitted.

In the figure, reference numeral 21 denotes a housing of the drive mechanism 22, which has a separation hole 24 and a release hole 25 that are parallel to each other and communicated through a communication hole 23 in the center, and an electromagnet 26 and a timer circuit connected inside. 27
And the battery part 28 is made watertight.

Reference numeral 29 denotes actuating means, which is comprised of the electromagnet 26 described above, the timer circuit section 27, the battery section 28, and the plate-shaped release body 30.

This release body 30 is designed to hold and release the locking ball 11 disposed in the communication hole 23 of the housing 21.
One end is rotatably attached within the release hole 25 of the housing 21, and an elastic body 31 that biases the locking ball 11 in the direction of pressing is provided at the other end, and the electromagnet is disposed on the opposite side of the elastic body 31. A magnetic material 32 that attracts the magnetic material 26 is provided.

Incidentally, the separation body 12 is inserted into the separation hole 24 of the housing 21 as in the first embodiment.

Next, to explain the effect of the above configuration, the first
Similarly to Example 1, connecting strips 1 are arranged around the outer periphery of the facing portions of adjacent test materials 5, and the stops 4 of the connecting strips 1 are respectively engaged with the adjacent test materials 5 to close them, and the closed By overlapping the connection holes 3 provided at both ends of the connection band 1 and inserting the separation pin 14 of the drive mechanism 22 from the inside into the overlapped connection holes 3,
The test materials 5 are connected and fixed together.

Similarly, other adjacent test materials 5 are connected and fixed, thereby connecting and fixing a plurality of test materials 5.

After connecting a plurality of test materials 5 in this manner, the timer circuit section 27 of the actuating means 29 provided in the drive mechanism 22 is adjusted in advance so that the test materials 5 can be separated at a desired operating depth D'.

The timer circuit section 27 of the operating means 29
After adjusting, the connected test materials 5 are immersed in water. When the test material 5 sinks to a desired depth D', the electromagnet 26 is magnetized by the action of the timer circuit section 27 of the actuation means 29 and attracts the magnetic material 32 of the release body 30.

When the magnetic material 32 overcomes the drag of the elastic body 31 and is attracted to the electromagnet 26 to rotate the release body 30, the holding of the locking ball 11 by the release body 30 is released, and the locking ball 11 is released under water pressure. It is pushed into the release hole 25 side by the separation body 12 pressed into the housing 6.

As a result, the locking of the separation body 12 by the locking ball 11 is released, and the separation body 12 is pushed deep into the housing 21 at a tremendous speed by water pressure, so that the pushed separation body 12 The separation pin 14 of the connecting band 1
The connecting band 1 is opened by the elastic material 2, and the test material 5 is disconnected from the test material 5, and the test material 5 is separated.

Note that the pushing force f of the locking ball 11 pushing the release body 30 is
Although it increases depending on the water depth, the tension F of the elastic body 31 can be made smaller than the pushing force f of the locking ball 11 as shown in equation (b) below.
Therefore, the magnetic material 32 of the release body 30 can be easily attracted.

F≧f×/L... (b) However, L is the distance from the rotation fulcrum of the release body 30 to the elastic body 3
1 is the distance from the pivot point of the release body 30 to the locking ball 11.

Also, the timer circuit section 2 according to the desired depth D'
The setting of the timer value T of 7 can be easily done using equation (c) below.

T=D'/V... (c) However, V is the sedimentation speed of the underwater cutting device.

[Effect of idea]

As explained above, the present invention includes an actuation means that is operated by a change in water pressure or the passage of a set time, a separation pin arranged in line with the actuation means, a separation pin at one end, and a cut groove at a predetermined position. a separating body that is moved by water pressure; and a separating body that is interposed between the separating body and the actuating means, engages with the kerf so as to prevent movement of the separating body, and is cut by operating the actuating means. A drive mechanism is provided at the end of the test material that is equipped with a locking ball that releases the engagement with the groove, and a stopper that locks each of the adjacent test materials is provided inside, as well as connecting holes at both ends. It consists of a connecting band that can be opened and closed in the form of double doors and is biased in the opening direction by an elastic material. At the same time, the connection holes at both ends of the connection band are overlapped, and the separation pin of the drive mechanism is inserted into the overlapped connection holes to connect multiple test materials, and to reach a specific depth underwater. When the actuating means is operated and the engagement between the locking ball and the kerf is released, the cutting body moves and the cutting pin comes out of the connecting hole, and the connecting band is opened by the elastic material and the test material is cut. I try to keep it away.

Therefore, according to this, it is possible to realize a highly reliable, small, and inexpensive underwater cutting device that can reliably separate test materials at a desired specific depth.

Further, in the present invention, when three or more test materials are connected to a drive mechanism by a connecting band, and the drive mechanism has a release body and an elastic body that biases the release body,
If the spring constant of the elastic body of each drive mechanism is set to be different, and if the drive mechanism has a timer, the set time of the timer of each drive mechanism is set to be different, then the connected It is also possible to sequentially cut the test materials one by one at different depths, which also has the effect of expanding the usage patterns.

[Brief explanation of the drawing]

Fig. 1 is a perspective view of a connecting band used in one embodiment of the present invention, Fig. 2 is a side view of a test material connected by a connecting band, and Fig. 3 is a view of a sensor used in the first embodiment of the present invention. 4 is a sectional view of a sensor used in a second embodiment of the present invention. 1... Connecting band, 3... Connecting hole, 5... Test material,
6, 21... Housing, 7, 22... Drive mechanism, 8,
23...Communication hole, 9, 24...Separation hole, 10,2
5... Release hole, 11... Locking ball, 12... Separation body, 13... Cut groove, 14... Separation pin, 16, 2
9... Actuation means, 17... Release body, 18, 31...
...Elastic body, 19...Escape groove, 26...Electromagnet, 2
7...Timer circuit, 30...Cancellation body.

Claims (1)

[Claims for Utility Model Registration] (1) An actuating means that operates according to a change in water pressure or the passage of a set time, which is arranged in line with the actuating means and has a separation pin at one end and a cut groove at a predetermined position. a separating body which is moved by water pressure, and which is interposed between the separating body and the actuating means and engages with the kerf so as to prevent movement of the separating body, and the actuating means operates. A drive mechanism is provided at the end of the test material that is equipped with a locking ball that releases the engagement with the kerf, and a stopper that locks each of the adjacent test materials is provided on the inside, and connecting holes are provided at both ends. It consists of a double-door-shaped connecting band that can be opened and closed, and is biased in the opening direction by an elastic material. At the same time as engaging the test materials and closing them, overlapping the connecting holes at both ends of the connecting band and inserting the separation pin of the drive mechanism into the overlapping connecting holes, multiple test materials are connected, and a specific point in the water is connected. When the actuating means operates at depth and the engagement between the locking ball and the kerf is released, the separation body moves and the separation pin comes out of the connection hole, and the elastic material opens the connection band and removes the test material. An underwater cutting device characterized by cutting. (2) a release body that has an escape groove at a predetermined position and is arranged so that its outer circumferential surface comes into contact with the locking ball that is engaged with the cut groove of the separation body, and that is moved by water pressure;
Using a drive mechanism having an actuating means comprising an elastic body that urges the release body against water pressure so that the relief groove does not come to the position of the locking ball until the separation body reaches a certain depth in the water. An underwater cutting device according to claim (1) of the utility model registration, characterized by: (3) A release body that is in contact with the locking ball engaged with the cut groove of the separation body and is arranged to rotate in a direction away from the locking ball around one end, and a release body that is arranged to prevent the release body from rotating. an elastic body that holds the other end, a timer that sets the time until the release body reaches a specific depth underwater, and a release body that resists the force of the elastic body after the time set by the timer has elapsed. An underwater cutting device according to claim (1), which is a registered utility model, characterized in that it uses a drive mechanism having an actuating means consisting of an electromagnet that attracts rotation.