JP6800785B2 - Separation device and separation method - Google Patents

Description

The present invention relates to a separation device and a separation method for releasing a suspended load suspended by a suspension means on water on the surface of water or into water.

When a suspended load suspended by a crane on a ship is thrown onto the surface of the water or into the water, a diver generally removes the suspended load. Further, when removing the ball from the ship, a ball removing device (recco hook) or the like in which a hook and a rope are combined may be used. Furthermore, a method of installing a suspended load such as a concrete structure on the bottom of the water by supplying water pressure to a hydraulic cylinder installed near the end of a suspended rope submerged in water to perform a disconnection operation ( For example, Patent Document 1) and the like have been proposed.

Japanese Unexamined Patent Publication No. 2003-226484

Here, when the diver removes the ball, there is a concern that the diver may come into contact with the suspended load, hull, hull, etc. due to the shaking of the waves, so take special measures. Need to be applied. Further, in the loading method using the recco hook, the distance between the hull and the hull cannot be sufficiently secured, and there is a concern that the hull may come into contact with the hull. On the other hand, in the method using the hydraulic cylinder described above, since it is necessary to supply water pressure from the ship, the distance between the hull and the suspended load is also restricted in this case as well. Furthermore, since the distance from the water pressure supply source on the ship to the disconnection part in the water is long and the circuit configuration is complicated, it is expected that a time lag will occur from the operation of disconnection to the actual disconnection. ..

The present invention has been made in view of the above problems, and an object of the present invention is to quickly load a suspended load without causing contact with the suspended load.

(Aspect of the invention)
The following aspects of the invention exemplify the configurations of the present invention and will be described separately in order to facilitate understanding of the various configurations of the present invention. Each section does not limit the technical scope of the present invention, and while taking into consideration the best mode for carrying out the invention, some of the components of each section are replaced, deleted, or further. Those to which the above-mentioned components are added can also be included in the technical scope of the present invention.

(1) A separating device for releasing a suspended load suspended by a hanging means on water onto the surface of the water or into the water, and a connecting portion attached to both the hanging means and the suspended load, and the said. A compressed air supply unit for supplying compressed air to the connecting unit, an operation unit for wirelessly transmitting a control signal for controlling the supply of compressed air from the compressed air supply unit, and receiving from the operation unit. A control means for controlling the supply of compressed air from the compressed air supply unit to the connecting portion, and the suspended means and the connecting portion are connected according to the control signal to be performed, and the compressed air supply unit and the connecting portion are connected. A pair of male and female connecting mechanisms that include a base portion on which the control means is mounted and that can be separated in a direction parallel to the hanging direction of the suspended load by the hanging means, and the connecting mechanism. A separation device (claim 1) that includes a separation operation unit that receives compressed air supplied from the compressed air supply unit and separates the connecting mechanism.

The decoupling device described in this section includes a connecting part, a compressed air supply part, an operating part, a control means and a base part, and the connecting part is attached to both a hanging means such as a crane and a suspended load to suspend. A base portion is connected between the lowering means and the connecting portion. That is, the hanging means, the base portion, the connecting portion and the suspended load are connected in series in this order. Further, the compressed air supply unit is configured to supply compressed air to the connecting portion mounted on the base portion and connected to the base portion. Similarly, the control means mounted on the base unit receives a control signal wirelessly transmitted from the operation unit, and supplies compressed air from the compressed air supply unit to the connecting unit in response to the control signal, for example, whether or not the supply is possible. To control. Further, as described above, the operation unit is for wirelessly transmitting a control signal to the control means, and is operated by a worker, for example, from a ship or land where the suspension means is installed. To.

Further, the connecting portion is provided with a connecting mechanism and a separating operation portion included in the connecting mechanism, and the connecting mechanism provides a direction parallel to the hanging direction of the suspended load by the suspending means, that is, a suspended load. It has a pair of male and female structures that can be separated in the direction of loading. The separation operation unit receives the compressed air supplied from the compressed air supply unit and separates the connecting mechanism.
With the above configuration, when the disconnection device described in this section is operated to supply compressed air to the operation unit by, for example, an operator, the control signal for that operation is operated on board or on land. It is transmitted wirelessly from the unit to the control means on the base unit connected to the suspension means. Upon receiving the control signal, the control means permits the supply of compressed air from the compressed air supply unit on the base unit to the connection unit connected to the base unit. Then, when compressed air is supplied from the compressed air supply unit to the connecting portion, the connecting mechanism is separated by the separating operation portion of the connecting portion, and the suspended load attached to the connecting portion is released on the water surface or in the water. It becomes.

As described above, in the disconnection device described in this section, the suspended load is loaded by remote control from the operation unit arranged on the ship or on land, so that the distance between the suspended load and the hull, quay, etc. is sufficient. It is opened to prevent contact between the suspended load and the hull, quay, etc. In addition, since it is not necessary for the diver to remove the suspended load, the diver does not come into contact with the suspended load or the hull. Further, since the structure is simple and the supply path of the compressed air is the length from the compressed air supply portion on the base portion to the connecting portion connected to the base portion, the disconnection operation is performed quickly. The suspended load is put into the air. In addition, when compressed air is supplied to the connecting portion, it becomes separable. Therefore, even if the supply of compressed air is adversely affected by air leakage or the like, the connecting portion can be separated. It is not separated and is fail-safe. Further, since compressed air is used as the driving force for the separation operation instead of hydraulic pressure, the water is not polluted by oil leakage or the like.

(2) In the above item (1), the connecting mechanism of the connecting portion is composed of a socket portion connected to the base portion and a plug portion fixed to the suspended load, and the socket portion is compressed. The lock mechanism includes a take-in part for taking in compressed air supplied from the air supply part and a lock mechanism for maintaining a coupled state with the plug part, and the lock mechanism includes compressed air through the take-in part. A locker that maintains or releases the coupling state between the linear slide portion that moves in parallel with the separation direction of the socket portion and the plug portion and the plug portion that receives the movement of the linear slide portion. A disconnection device (claim 2).

In the disconnection device described in this section, the connecting mechanism of the connecting portion is composed of a socket portion connected to the base portion and a plug portion fixed to the suspended load. That is, the female socket portion connected to the base portion and the male plug portion fixed to the suspended load are separably connected in a direction parallel to the hanging direction of the suspended load by the hanging means. It has a structure. The socket portion includes an intake portion for taking in compressed air supplied from the compressed air supply portion and a lock mechanism for maintaining a coupled state between the socket portion and the plug portion, and this lock mechanism includes a locking mechanism. It has a linear slide and a lock. The linear slide section receives the compressed air taken in from the intake section and moves in parallel with the separation direction between the socket section and the plug section. When the supply of compressed air is stopped, it is the opposite of the supply. Move in the direction. Then, the locker receives such movement of the linear slide portion and maintains or releases the coupling state between the socket portion and the plug portion. With such a configuration, compressed air is used to reliably and quickly separate the connecting mechanism of the connecting portion.

(3) In the above item (2), the plug portion has a cylindrical portion having a groove on the outer circumference, and the socket portion is arranged inside the cylindrical outer cylinder portion and the outer cylinder portion. The locking mechanism includes a cylindrical inner cylinder portion to be formed and an insertion hole formed inside the inner cylinder portion into which the cylindrical portion of the plug portion is inserted, and the locking mechanism is a circle of the inner cylinder portion. A plurality of lock holder holding holes provided at intervals in the circumferential direction of the inner cylinder portion in a manner of penetrating the inner cylinder portion on the circumferential side, and each lock inside each of the plurality of lock holder holding holes. The said, which is arranged so as to be displaceable in the penetrating direction of the child holding hole, has a diameter larger than the wall thickness of the portion where each locker holding hole of the inner cylinder portion is formed, and is inserted into the insertion hole. A plurality of spheres forming the lock that can be engaged with the groove of the cylindrical portion of the plug portion are slidably installed between the outer cylinder portion and the inner cylinder portion to form the linear slide portion. In a state where the compressed air is not taken in from the cylindrical sleeve and the intake portion, the sleeve is displaced to a position covering the plurality of lock holder holding holes, and the compressed air is taken in from the intake portion. A decoupling device comprising a displacement means that displaces the sleeve to a position that does not cover the plurality of lock holder holding holes in the state.

In the cutting device described in this section, the plug portion has a cylindrical portion having a groove on the outer periphery, and the socket portion has a cylindrical outer cylinder portion and a cylindrical inner cylinder arranged inside the cylindrical outer cylinder portion. A tubular portion is provided, and an insertion hole into which the cylindrical portion of the plug portion is inserted is formed inside the inner tubular portion. The locking mechanism of the socket portion is composed of a plurality of lock holder holding holes, a plurality of spheres forming the lock, a cylindrical sleeve forming the linear slide portion, and a displacement means.
Each of the plurality of locker holding holes is provided on the circumferential side of the inner cylinder portion so as to penetrate the inner cylinder portion, and is in a state of communicating with the insertion hole inside the inner cylinder portion. Further, a plurality of lock holder holding holes are provided at intervals in the circumferential direction of the inner cylinder portion, and for example, when they are provided at equal intervals of 90 degrees, four lock holder holding holes are provided in the inner cylinder portion. Will be.

Each of the plurality of spheres forming the lock is displaceably arranged inside each lock holding hole in the penetrating direction of each lock holding hole. For example, when a plurality of lock holder holding holes are provided at equal intervals of 90 degrees on the circumferential side of the inner cylinder portion as described above, a total of four spheres are arranged. Further, each of the plurality of spheres has a diameter larger than the wall thickness (depth in the penetrating direction of the locker holding hole) of the portion of the inner cylinder portion where each locker holding hole is formed.

The sleeve forming the linear slide portion has a cylindrical shape and is slidably installed between the outer cylinder portion and the inner cylinder portion in parallel with the separation direction of the socket portion and the plug portion. Then, what slides and displaces this sleeve is a displacement means, and the displacement means covers a plurality of locker holding holes from the outside of the inner cylinder portion in a state where compressed air is not taken in from the intake portion. Displace the sleeve in position. That is, in this state, since the opening on the outer cylinder portion side of each locker holding hole is covered by the sleeve, each locker holding hole in the inner cylinder portion is formed in the sphere arranged inside each locker holding hole. Since it has a diameter larger than the wall thickness of the portion (depth in the penetration direction of the locker holding hole), it is in a state of protruding from each locker holding hole to the insertion hole inside the inner cylinder portion. On the other hand, in a state where compressed air is taken in from the intake portion, the displacement means displaces the sleeve from the outside of the inner cylinder portion to a position that does not cover the plurality of lock holder holding holes. That is, in this state, the opening on the outer cylinder side of each locker holding hole is not covered by the sleeve, so that the sphere arranged inside each locker holding hole is on the outer cylinder side of each locker holding hole. It becomes possible to project from the opening of the outer cylinder to the outer cylinder side.

With the above configuration, the cutting device described in this section takes in a state where the cylindrical part of the plug part is inserted into the insertion hole of the socket part and the compressed air is not supplied from the compressed air supply part. In the state where it is not taken in from the insertion part, the sphere protruding from each locker holding hole to the insertion hole engages with the groove provided in the cylindrical part, and the connected state between the socket part and the plug part is maintained. .. Then, from such a state, when the compressed air supplied from the compressed air supply unit is taken in from the intake unit and the sleeve is displaced by the displacement means, the sphere is opened from the opening on the outer cylinder portion side of each locker holding hole. Is in a state where it can protrude. In this state, when a force parallel to the separation direction of the connecting mechanism is applied to the suspended load, the sphere is displaced so as to protrude from the opening on the outer cylinder side of each locker holding hole, and each of the spheres with respect to the groove of the cylindrical portion. Since the engaged state of the sphere is released, the socket portion and the plug portion are instantly separated. As a result, for example, when the suspended load is released on the water surface, the suspended load is floated on the water surface that moves up and down, and the suspended load is loaded at the timing immediately before the water surface starts to rise and fall. , The suspended load will be loaded instantly without being damaged.

(4) In the above items (1) to (3), the control means is a solenoid valve installed on the compressed air supply path from the compressed air supply unit to the connection unit, and a control signal received from the operation unit. A disconnection device (claim 3) including a receiving unit that transmits an open / close signal to the solenoid valve according to the above, and a power supply unit that supplies power to the solenoid valve and the receiving unit.
In the disconnection device described in this section, the control means includes a solenoid valve, a receiving unit, and a power supply unit. The solenoid valve is installed on the compressed air supply path from the compressed air supply unit to the connecting portion, and the supply of compressed air is started and stopped by its opening / closing operation. The receiving unit receives the control signal wirelessly transmitted from the operation unit, and transmits the opening / closing control signal to the solenoid valve according to the received control signal. Further, the power supply unit supplies electric power to the solenoid valve and the receiving unit. As a result, the reception of the wireless control signal and the opening / closing operation of the compressed air supply path are performed only by the electric circuit mounted on the base portion, so that the reliability and responsiveness are improved.

(5) above (4) in the section, the compressed air supply is an air tank, separating device (claim 4) wherein the power supply unit is a battery.
Separating device according to the above, the compressed air supply is an air tank, by power supply unit is a battery, in which reduction in size and weight can be achieved. In particular, among the members mounted on the base portion, these members, which are feared to be relatively large, are reduced in size and weight, so that the size and weight of the base portion can be reduced. Therefore, the strength required for the base portion and the load applied to the hanging means are reduced.

(6) In the above (1) to (5), the separation device (claim 5) in which the base portion is arranged on water.
In the disconnection device described in this section, the compressed air supply unit and the control means (solenoid valve) mounted on the base portion are arranged by arranging the base portion connected between the suspending means and the connecting portion on the water. , Reception unit, power supply unit) are arranged on the water. That is, both the compressed air supply unit, which is the supply source of the compressed air, and the control means for controlling the compressed air supply are arranged on the water while being as close as possible to the connecting portion, which is the supply destination of the compressed air. Will be done. As a result, the supply and supply control of the compressed air are performed on the water, so that the reliability of the disconnection operation using the compressed air is improved. Further, when the suspended load is put on the water surface, the connecting portion is also arranged on the water, so that the compressed air supply pipe from the compressed air supply portion to the connecting portion is constructed as short as possible. It becomes a thing.

(7) A separation method for releasing a suspended load suspended by a suspension means on water onto the surface of the water or into the water, and the suspension means includes a compressed air supply unit and a base unit having a control means. , A pair of separable male and female connecting mechanisms, a connecting portion included in the connecting mechanism and provided with a separating operation portion for separating the connecting mechanism, and the suspended load are connected in series in this order by the control means. , The supply of compressed air from the compressed air supply unit to the connection unit is controlled according to the control signal wirelessly transmitted from the operation unit, and the compressed air is controlled from the compressed air supply unit to the separation operation unit of the connection unit. A method for separating the connecting mechanism in a direction parallel to the suspending direction of the suspended load by the suspending means (claim 6).

(8) In the above item (7), the connecting mechanism of the connecting portion is composed of a socket portion connected to the base portion and a plug portion fixed to the suspended load, and the compressed air is supplied to the socket portion. An intake portion for taking in compressed air supplied from the portion, a linear slide portion and a locker, and a lock mechanism for maintaining a coupled state with the plug portion are provided, and the intake portion is provided through the intake portion. By supplying compressed air to the lock mechanism and moving the linear slide portion in parallel with the separation direction between the socket portion and the plug portion, the locking member maintains or releases the coupling state with the plug portion. Separation method (claim 7).

(9) In the above item (8), a cylindrical portion having a groove on the outer circumference is formed in the plug portion, and the cylindrical outer cylinder portion and the inner side of the outer cylinder portion are arranged in the socket portion. A cylindrical inner cylinder portion is provided, an insertion hole for inserting the cylindrical portion of the plug portion is formed inside the inner cylinder portion, and the inner cylinder portion is placed on the circumferential side of the inner cylinder portion. A plurality of lock holder holding holes are provided at intervals in the circumferential direction of the inner cylinder portion in a penetrating manner, and the thickness of the portion of the inner cylinder portion in which each of the plurality of lock holder holding holes is formed is increased. Each of the plurality of spheres forming the locker having a large diameter and engaging with the groove of the cylindrical portion of the plug portion in the state of being inserted into the insertion hole is formed by the plurality of locker holding holes. A cylindrical sleeve forming the linear slide portion can be slidable between the outer cylinder portion and the inner cylinder portion by arranging the inside of each of the lockers so as to be displaceable in the penetrating direction of each locker holding hole. In a state where the sleeve is installed and the compressed air is not taken in from the intake portion, the sleeve is displaced to a position covering the plurality of lock holder holding holes, and the compressed air is taken in from the intake portion. A cutting method in which a displacement means for displacementing the sleeve is provided at a position that does not cover the plurality of lock holder holding holes.

(10) In the above items (7) to (9), the control means is attached to a solenoid valve installed on the compressed air supply path from the compressed air supply unit to the connection unit and a control signal received from the operation unit. A disconnection method (claim 8) comprising a receiving unit that transmits an open / close signal to the solenoid valve accordingly, and a power supply unit that supplies power to the solenoid valve and the receiving unit.
(11) described above in (10) section, the compressed air supply unit constituted by an air tank, the separating method (claim 9) constituting the power supply unit by a battery.

(12) In the above (7) to (11), the separation method (claim 10) in which the base portion is always placed on water.
The separation methods described in items (7) to (12) are executed by using the separation devices in items (1) to (6) above, respectively, and the methods from (1) to (1) above ( It has the same function as the cutting device in item 6).

Since the present invention has the above-described configuration, it is possible to quickly load the suspended load without causing contact with the suspended load.

It is a block diagram which shows an example of the structure of the separation device which concerns on embodiment of this invention. It is an image figure which shows the arrangement example of each component member of the separation device which concerns on embodiment of this invention. It is a front view which shows an example of the structure of the connecting part used in the disconnection apparatus which concerns on embodiment of this invention, which is shown in the cross section with a part being broken, and shows the connecting part in a separated state. It is a front view which shows the connecting part of FIG. 3 in the bonded state, which is shown in the cross section with a part broken.

Hereinafter, embodiments for carrying out the present invention will be described with reference to the accompanying drawings. The same parts or corresponding parts are indicated by the same reference numerals throughout the drawings.
FIG. 1 is a block diagram showing an example of the configuration of the separation device 10 according to the embodiment of the present invention, and FIG. 2 shows a suspended load 88 by a lifting means 82 such as a crane mounted on a work boat 80. It is an image diagram which shows the arrangement example of the separation device 10 in the case of releasing a crane on a water surface. As shown in FIG. 1, the separation device 10 according to the embodiment of the present invention includes a connecting portion 12, a compressed air supply unit 60, an operating unit 62, a control means 64, and a base unit 74. There is. In the example of FIG. 2, the base portion 74 on which the compressed air supply unit 60 and the control means 64 are mounted is connected to the tip 82a of the hanging means 82, and the connecting portion 12 is connected to the base portion 74 via the connecting rope 84. Then, the suspension load 88 is attached to the connecting portion 12 via the connecting tool 86.

The operation unit 62 is operated by a worker or the like on the work boat 80, and wirelessly transmits a control signal related to the disconnection operation of the disconnection device 10 to the control means 64. Any wireless transmission means can be used for the operation unit 62, and for example, a so-called teleconverter may be used in combination with the reception unit 68 described later. The wireless transmission distance required for the operation unit 62 is wireless between the work boat 80 and the control means 64 on the base portion 74 suspended by the suspension means 82 in consideration of the size of the suspension means 82 and the like. It suffices as long as it is a necessary and sufficient distance that allows communication, and for example, it is assumed to be several tens to 100 meters.

The base portion 74 is mounted with a compressed air supply portion 60 and a control means 64, and is connected between the suspending means 82 and the connecting portion 12 so that they are arranged in the vicinity of the connecting portion 12. In the example of FIG. 2, the base portion 74 has a frame structure. However, the base portion 74 may have another shape such as a box shape as long as it has strength in consideration of the weight of the compressed air supply unit 60 and the control means 64 to be mounted and the load applied from the suspended load 88. There may be. The base portion 74 is always placed on the water.
The compressed air supply unit 60 mounted on the base unit 74 is for supplying compressed air to the connecting unit 12, and for example, an air compressor, an air tank, or the like is used. An air tank is preferable from the viewpoint of miniaturization and weight reduction. In this case, the air tank is filled with compressed air prior to the loading operation of the suspended load 88.

The control means 64 mounted on the base portion 74 includes a solenoid valve 66, a receiving unit 68, and a power supply unit 70. The receiving unit 68 receives the control signal wirelessly transmitted from the operation unit 62, converts it into an opening / closing control signal related to the opening / closing operation of the solenoid valve 66, and transmits the control signal to the solenoid valve 66. The solenoid valve 66 is installed on the supply path of compressed air from the compressed air supply unit 60 to the connecting unit 12, and performs an opening / closing operation in response to an opening / closing control signal received from the receiving unit 68, thereby starting the supply of compressed air. And to stop. Further, the power supply unit 70 supplies power to the solenoid valve 66 and the reception unit 68, and for example, a battery or a generator is used. From the viewpoint of miniaturization and weight reduction, a battery is preferable. In this case, the battery is charged or a charged battery is mounted prior to the loading work of the suspended load 88.

Since the control means 64 has the above configuration, it is possible to perform from the reception of the wireless control signal to the opening / closing operation of the compressed air supply path only by the electric circuit mounted on the base portion 74, so that the reliability is high. And it becomes possible to enhance the responsiveness. Further, as described above, a compressed air supply unit 60 is the air tank, by power supply unit 70 is a battery, among the member to be mounted on the base portion 74, these comprising relatively large it is feared The members can be made smaller and lighter, and the base portion 74 can be made smaller and lighter. Therefore, the strength required for the base portion 74 and the load applied to the hanging means 82 can be reduced.

The connecting unit 12 includes a connecting mechanism 14 and a separating operation unit 16 included in the connecting mechanism 14. The connecting mechanism 14 has a pair of male and female structures that can be separated in a direction parallel to the hanging direction of the suspended load 88 by the suspending means 82, that is, a direction in which the suspended load 88 is loaded (vertical direction in FIG. 2). The separation operation unit 16 is configured to receive the compressed air supplied from the compressed air supply unit 60 via the solenoid valve 66 and separate the connecting mechanism 14. Therefore, the solenoid valve 66 connected to the compressed air supply unit 60 on the base portion 74 and the connecting portion 12 connected to the base portion 74 via the connecting rope 84 can be confirmed in FIG. , Connected by a compressed air supply pipe 76.

The separation device 10 having the above configuration is configured such that the solenoid valve 66 is always in the closed state until an operation related to the disconnection operation is performed on the operation unit 62 by an operator or the like. Therefore, in that state, the compressed air is not supplied from the compressed air supply unit 60 to the connecting portion 12, the connecting mechanism 14 of the connecting portion 12 is not separated, and the coupled state of the connecting mechanism 14 is maintained. Then, when an operation related to the disconnection operation is performed on the operation unit 62 by a worker or the like, a control signal for that operation is wirelessly transmitted from the operation unit 62 on the work boat 80 to the suspension means 82. It is transmitted to the receiving unit 68 of the control means 64 on the unit 74. Upon receiving the control signal, the control means 64 permits the compressed air supply unit 60 on the base unit 74 to supply the compressed air to the connecting unit 12 connected to the base unit 74. Specifically, the control signal received by the receiving unit 68 of the control means 64 is converted into a signal for opening the solenoid valve 66 and transmitted to the solenoid valve 66, and the solenoid valve 66 that receives this signal opens. Become in a state. Then, compressed air is supplied from the compressed air supply unit 60 to the connecting unit 12 via the solenoid valve 66, and the connecting mechanism 14 is separated by the separation operation unit 16 in response to the compressed air and fixed to the connecting unit 12. The suspended load 88 is thrown onto the surface of the water.

Here, in the operation performed on the operation unit 62, the disconnection execution operation and the stop operation may be input separately, and the disconnection execution operation is continuously input, and the input ends. May be regarded as a stop operation.
As the suspended load 88 released on the water surface, for example, a boat or a surface exploration boat is assumed. On the other hand, examples of the suspended load 88 released into the water include a wave-dissipating block, and in this case, the suspended load 88 is submerged in the water together with the connecting rope 84 and the connecting tool 86 beyond the base portion 74. , The disconnection operation as described above may be performed. Further, the weight of the suspended load 88 loaded by using the separation device 10 is assumed to be up to about 10 tons.

As described above, in the separation device 10 according to the embodiment of the present invention, the suspended load 88 is loaded by remote control from the operation unit 62 arranged on the work ship 80, so that the suspended load 88 and the work ship are loaded. A sufficient distance from the 80 can be provided, and contact between the suspended load 88 and the hull of the work vessel 80 can be prevented. Further, since the diver does not need to remove the ball of the suspended load 88, the diver does not come into contact with the suspended load 88, the work vessel 80, or the like. Further, since the structure is simple and the supply path of the compressed air is the length from the compressed air supply portion 60 on the base portion 74 to the connecting portion 12 connected to the base portion 74, the disconnection operation can be performed. Once done, the suspended load 88 can be quickly loaded. In addition, when compressed air is supplied to the connecting portion 12, it becomes separable. Therefore, even if the supply of compressed air is adversely affected by, for example, air leakage, the connecting portion 12 is not separated, and fail-safe is achieved. Further, since compressed air is used as the driving force for the separation operation instead of hydraulic pressure, the water is not polluted by oil leakage or the like.

Further, the separation device 10 according to the embodiment of the present invention is mounted on the base portion 74 by arranging the base portion 74 connected between the suspending means 82 and the connecting portion 12 on the water. The compressed air supply unit 60 and the control means 64 (solenoid valve 66, reception unit 68, power supply unit 70) are arranged on the water. That is, both the compressed air supply unit 60, which is the supply source of the compressed air, and the control means 64, which controls the compressed air supply, are as close as possible to the connecting unit 12 which is the supply destination of the compressed air. Placed on the water. As a result, the supply and supply control of the compressed air are performed on the water, so that the reliability of the disconnection operation using the compressed air can be improved. Further, as in the example of FIG. 2, when the suspended load 88 is put on the water surface, the connecting portion 12 is also arranged on the water, so that the compressed air from the compressed air supply unit 60 to the connecting portion 12 The supply pipe 76 can be configured as short as possible.

Subsequently, an example of the structure of the connecting portion 12 used in the disconnection device 10 according to the embodiment of the present invention will be described in more detail with reference to FIGS. 3 and 4. Note that FIG. 3 shows the connecting portion 12 in the separated state, and FIG. 4 shows the connecting portion 12 in the bonded state.
As shown in FIG. 3, the connecting portion 12 includes a socket portion 18 and a plug portion 40 as a pair of male and female structures of the separable connecting mechanism 14. The socket portion 18 is connected to the base portion 74 side via the connecting rope 84 and the shackle 46, and the plug portion 40 is fixed to the suspended load 88 side via the connecting tool 86 (see FIG. 2). That is, the female socket portion 18 connected to the base portion 74 and the male plug portion 40 fixed to the suspension load 88 are in a direction parallel to the suspension direction of the suspension load 88 by the suspension means 82 (that is, It has a structure that is separably connected in the vertical direction in FIG. The socket portion 18 shown in FIGS. 3 and 4 is shown as a cross section on the right side of the central axis C in the drawing.

The plug portion 40 has a cylindrical portion 42 provided with a groove 44 on the outer periphery, a flange portion 48, and a fixing portion 50 to which the connector 86 is fixed.
The socket portion 18 includes a take-in portion 20, a lock mechanism 22, an outer cylinder portion 32, an inner cylinder portion 34, and an insertion hole 36. The inner cylinder portion 34 has a substantially cylindrical shape with an insertion hole 36 provided inside in the lower part of the drawing, and the substantially cylindrical outer cylinder portion 32 having an L-shaped cross section is located outside the inner cylinder portion 34. It is installed. In the outer cylinder portion 32, a portion corresponding to the tip of the short side portion having an L-shaped cross section is fitted to the outer circumference of the inner cylinder portion 34, and the long side portion having an L-shaped cross section of the outer cylinder portion 32 A gap is provided between the corresponding portion and the outer circumference of the inner cylinder portion 34. The intake unit 20 is for taking in the compressed air supplied from the compressed air supply unit 60, and is connected to the compressed air supply pipe 76 extending from the solenoid valve 66 on the base unit 74 (see FIG. 2). .. The intake portion 20 and the shackle 46 are provided on the inner cylinder portion 34. The insertion hole 36 provided inside the inner cylinder portion 34 is a portion where the cylindrical portion 42 of the plug portion 40 is inserted when the connecting portion 12 is connected, and is a substantially cylindrical body having a size into which the cylindrical portion 42 can be inserted. It is in the shape.

The lock mechanism 22 is for maintaining the coupled state of the plug portion 40 with respect to the socket portion 18, and in this embodiment, a plurality of lock holder holding holes 24 provided in the inner cylinder portion 34 and each locker holding hole 24. A plurality of spheres (lockers) 28 installed inside the hole 24, a sleeve (linear slide portion) 26 installed in a gap between the outer cylinder portion 32 and the inner cylinder portion 34, and a displacement means 30. It is configured. The plurality of locker holding holes 24 penetrate the inner cylinder portion 34 on the circumferential side of the portion of the inner cylinder portion 34 where the insertion hole 36 is provided, and in this embodiment, the circumference of the inner cylinder portion 34. Four are provided at equal intervals of 90 degrees in the direction, and only one of them is shown in FIGS. 3 and 4. That is, each of the plurality of lock holder holding holes 24 is in a state of communicating with the insertion hole 36 inside the inner cylinder portion 34. A total of four spheres 28 installed inside each locker holding hole 24 are arranged in the same manner as the locker holding hole 24 in this embodiment, and only one of them is arranged in FIGS. 3 and 4. Is illustrated. Further, each of the plurality of spheres 28 has a diameter larger than the wall thickness of the portion of the inner cylinder portion 34 in which the locker holding hole 24 is formed. On the other hand, each locker holding hole 24 is formed so that the width in the vertical direction of FIG. 3 allows displacement of the sphere 28 in the horizontal direction (radial direction of the cylindrical portion 34) in the drawing.

The substantially cylindrical sleeve 26 is slidably installed in the gap between the outer cylinder portion 32 and the inner cylinder portion 34 in parallel with the separation direction of the socket portion 18 and the plug portion 40 (vertical direction in the drawing). The sliding limit position in the upward direction in the drawing is defined by the outer cylinder portion 32, and the sliding limit position in the downward direction in the drawing is defined by the inner cylinder portion 34. The displacement means 30 is for sliding the sleeve 26. Specifically, the displacement means 30 uses an elastic body such as a spring as shown in the illustrated example in a state where compressed air is not taken in from the intake unit 20 (states in FIGS. 3 and 4A). Then, the sleeve 26 is urged to the lower sliding limit position in the figure. At this time, as can be confirmed from the drawing, the outer opening of each locker holding hole 24 with reference to the central axis C is covered by the sleeve 26. On the other hand, in the state where the compressed air is taken in from the intake portion 20 (the state shown in FIG. 4B), the displacement means 30 is made of an elastic body such as a spring by utilizing the pressure of the taken-in compressed air. A force superior to the urging force is applied to the sleeve 26, and the sleeve 26 is slid to the upper sliding limit position in the figure. At this time, as can be confirmed from the drawing, the outer opening of each locker holding hole 24 with respect to the central axis C is not covered by the sleeve 26.

The connecting portion 12 shown in FIGS. 3 and 4 operates as follows. That is, in a state where the suspended load 88 is suspended by the suspending means 82 before the disconnection operation is performed, as shown in FIG. 4A, the plug portion 40 is inserted into the insertion hole 36 of the socket portion 18. The cylindrical portion 42 is inserted, and the socket portion 18 and the plug portion 40 are connected. At this time, since compressed air is not supplied from the compressed air supply unit 60 to the intake unit 20, the displacement means 30 uses an elastic body to urge the sleeve 26 to the position shown in FIG. 4A. Then, since the outer opening of each locker holding hole 24 with reference to the central axis C is covered by the sleeve 26, the sphere 28 arranged inside each locker holding hole 24 has each locker holding hole 24. Displacement outward of the outer opening of 24 is regulated by the sleeve 26. Therefore, each sphere 28 having a diameter larger than the wall thickness of the portion where each locker holding hole 24 of the inner cylinder portion 34 is formed is inside of each locker holding hole 24 with reference to the central axis C. It protrudes inward from the opening and engages with the groove 44 provided in the cylindrical portion 42 of the plug portion 40. As a result, the coupled state of the socket portion 18 and the plug portion 40 is maintained.

Then, when the connecting portion 12 shown in FIGS. 3 and 4 performs the disconnection operation, the compressed air is supplied from the compressed air supply unit 60, and the compressed air is taken into the socket unit 18 from the intake unit 20. Then, as shown in FIG. 4B, the displacement means 30 uses the pressure of the compressed air taken in to reach a position in the drawing that does not cover the outer opening of each locker holding hole 24. The sleeve 26 is slid upward. As a result, the sphere 28 arranged inside each locker holding hole 24 can be displaced outward from the outer opening of each locker holding hole 24. Therefore, each sphere 28 is displaced outward in the radial direction of the inner cylinder portion 34 at the timing when a load is applied to the plug portion 40 connected to the suspended load 88 in the separation direction, and is engaged with the groove 44. Is released. Then, as shown in FIG. 3, the connection between the socket portion 18 and the plug portion 40 is released, and the disconnection operation is performed. The socket portion 18 shown in FIG. 3 is in a state in which the supply of compressed air is stopped and the sleeve 26 is already lowered in the drawing. Due to such a configuration, in the connecting portion 12 shown in FIGS. 3 and 4, the separating operation portion 16 shown in FIG. 1 is composed of a capturing portion 20 and a locking mechanism 22.

With the above configuration, the separation device 10 according to the embodiment of the present invention can instantly separate the socket portion 18 and the plug portion 40. As a result, as in the example of FIG. 2, when the suspended load 88 is released on the water surface, the suspended load 88 is floated on the water surface that moves up and down, and the suspended load 88 is immediately before the water surface rises and begins to descend. By performing the operation of loading the suspended load 88, it is possible to instantly load the suspended load 88 without damaging it.
On the other hand, the separation method according to the embodiment of the present invention is executed by using the separation device 10 according to the embodiment of the present invention described above, and the separation according to the embodiment of the present invention. It has the same effect as that of the device 10.

10: Separation device, 12: Connection part, 14: Connection mechanism, 16: Separation operation part, 18: Socket part, 20: Take-in part, 22: Lock mechanism, 26: Linear slide part (sleeve), 28: Locking Child (plural spheres), 40: plug part, 60: compressed air supply part, 62: operation part, 64: control means, 66: solenoid valve, 68: receiver part, 70: power supply part, 74: base part, 82: Hanging means, 88: Suspended load

Claims (10)

It is a separation device for releasing a suspended load suspended by a hanging means on the water onto the surface of the water or into the water.
A connecting portion attached to both the hanging means and the suspended load,
A compressed air supply unit for supplying compressed air to the connection unit,
An operation unit for wirelessly transmitting a control signal for controlling the supply of compressed air from the compressed air supply unit, and an operation unit.
A control means for controlling the supply of compressed air from the compressed air supply unit to the connection unit according to a control signal received from the operation unit.
It includes the compressed air supply unit and the base unit on which the control means is mounted, which is connected between the suspension means and the connection portion.
The connecting portion includes a pair of male and female connecting mechanisms that can be separated in a direction parallel to the hanging direction of the suspended load by the suspending means, and compression included in the connecting mechanism and supplied from the compressed air supply unit. A separation device provided with a separation operation unit that receives air and separates the connection mechanism. The connecting mechanism of the connecting portion is composed of a socket portion connected to the base portion and a plug portion fixed to the suspended load.
The socket portion includes an intake portion for taking in compressed air supplied from the compressed air supply portion and a lock mechanism for maintaining a coupled state with the plug portion, and the lock mechanism includes the intake portion. A linear slide portion that receives the supply of compressed air via the inclusion portion and moves in parallel with the separation direction of the socket portion and the plug portion, and a coupling state of the plug portion that receives the movement of the linear slide portion. The disconnection device according to claim 1, further comprising a locker for maintaining or releasing the air. The control means includes a solenoid valve installed on the compressed air supply path from the compressed air supply unit to the connecting unit, and a receiving unit that transmits an open / close signal to the solenoid valve in response to a control signal received from the operation unit. The disconnection device according to claim 1 or 2, wherein the solenoid valve and a power supply unit for supplying power to the reception unit are included. The compressed air supply unit is an air tank, separating device according to claim 3, wherein said power supply unit is a battery. The separation device according to any one of claims 1 to 4, wherein the base portion is arranged on water. It is a separation method for releasing a suspended load suspended by a hanging means on the water onto the surface of the water or into the water.
The suspending means includes a base portion equipped with a compressed air supply unit and a control means, a pair of separable male and female connecting mechanisms, and a connecting portion provided with a separating operation unit included in the connecting mechanism to separate the connecting mechanism. , The suspended load is connected in series in this order,
The control means controls the supply of compressed air from the compressed air supply unit to the connection unit in response to a control signal wirelessly transmitted from the operation unit.
By supplying compressed air from the compressed air supply unit to the separation operation unit of the connecting portion, the connecting mechanism is separated in a direction parallel to the suspending direction of the suspended load by the suspending means. Separation method. The connecting mechanism of the connecting portion is composed of a socket portion that connects to the base portion and a plug portion that is fixed to the suspended load.
The socket portion is provided with a take-in portion for taking in compressed air supplied from the compressed air supply portion, a linear slide portion and a lock, and a lock mechanism for maintaining a coupled state with the plug portion. By providing compressed air to the lock mechanism via the intake portion and moving the linear slide portion in parallel with the separation direction of the socket portion and the plug portion, the plug is provided by the locker. The cutting method according to claim 6, wherein the state of connection with the portion is maintained or released. A solenoid valve that installs the control means on the compressed air supply path from the compressed air supply unit to the connecting unit, and a receiving unit that transmits an open / close signal to the solenoid valve in response to a control signal received from the operation unit. The disconnection method according to claim 6 or 7, wherein the solenoid valve and a power supply unit for supplying power to the reception unit are configured. The compressed air supply unit constituted by an air tank, the separating method according to claim 8, wherein the configuring the power supply unit by a battery. The cutting method according to any one of claims 6 to 9, wherein the base portion is always placed on water.

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