CN102410786A - Towing net bag type device for intercepting suspended matter in water for single ship - Google Patents
Towing net bag type device for intercepting suspended matter in water for single ship Download PDFInfo
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- CN102410786A CN102410786A CN2011103409416A CN201110340941A CN102410786A CN 102410786 A CN102410786 A CN 102410786A CN 2011103409416 A CN2011103409416 A CN 2011103409416A CN 201110340941 A CN201110340941 A CN 201110340941A CN 102410786 A CN102410786 A CN 102410786A
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- intercepting device
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title abstract description 27
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- 238000012549 training Methods 0.000 description 2
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Abstract
The invention discloses a towing net bag type device for intercepting suspended matter in water for single ship. The design is mainly for protecting safety of ship under water. The net opening of the net bag generates outward component force under water power in towing process by the flowing power of water through the intercepting device and the net opening is expanded towards four sides for implementing a function of catching possible suspended matters under water. The intercepting device can adopt different manners to fix depth of the net bag under water and the device provides a proper intercepting method for accurately catching suspended matter under water. Meanwhile, the system is further provided with a storing barrel for storing and arranging the intercepting device conveniently. The storing barrel can guarantee the proper storage and arrangement of the intercepting device as well as the running posture of the net bag in water.
Description
Technical Field
The invention relates to an underwater interception and capture technology, in particular to a single-ship dragging net bag type underwater floating object interception device for intercepting underwater floating objects.
Background
With the development of modern strategic situation, a considerable scale of coping strategies are available for attacks from the air and the ground, however, hidden attacks from the underwater are still weak links in defense, and meanwhile, the management difficulty exists, and the underwater security protection is the key point. At present, most of underwater security measures adopted at home and abroad for important ports or water areas are that detection sonars are arranged underwater, all-weather underwater detection and monitoring are carried out on the water areas within a certain range, and when suspicious targets are found, the following modes are adopted for dealing with the suspicious targets:
1. dispatching divers or frogmans;
2. laying the underwater robot;
3. releasing a trained marine animal, such as dolphin.
Although the method can intercept and treat suspicious suspended objects in water to a certain extent, the method also has the following defects:
for dispatched divers or frogmans, certain response time is needed, and suspicious suspended objects in water are difficult to quickly search again once the suspicious suspended objects are separated from the detection range of the detection sonar; on the other hand, the diver or the frogman underwater runs at a low speed in water, the interception and capture requirements cannot be met under most conditions, and the safety of the diver or the frogman underwater also has hidden troubles.
For the robot which is arranged, the running speed of the robot in water is slow, the mobility is poor, and even if suspicious suspended objects are searched, reliable and effective interception and capture are difficult to implement.
For marine animals releasing training elements, at present, only foreign countries train marine animals (such as dolphins) and search and alarm for underwater suspicious suspended objects, but reports of capturing the suspicious suspended objects and training and related reports of freshwater animals are not available, and the application range is limited.
Therefore, although the detection and tracking technology for underwater suspended objects is developed to a certain extent at present, the interception and capture technology for underwater suspended objects still can not meet the use requirements.
Disclosure of Invention
In view of the above, the invention provides a single-ship towing net bag type underwater suspended floating object intercepting device for intercepting and capturing underwater suspended floating objects.
The single-ship dragging mesh bag type underwater suspended object intercepting device comprises a retractable rope and a mesh bag assembly, wherein the single ship drags the mesh bag assembly through the retractable rope; wherein, the net bag component comprises an upper line floater, a lower line weight, a storage cylinder and a net bag; the head line floater is hung on a head line of the mesh bag, the lower line weight is hung on a lower line of the mesh bag, and the sinking force provided by the lower line weight is larger than the buoyancy force provided by the head line floater; the storage cylinder is dragged at the tail part of the mesh bag and is connected with the mesh opening of the mesh bag through a stabilizing rope, and the length of the stabilizing rope is smaller than that of the mesh bag; the net bag is provided with two net sleeves and a flexible net plate, the two net sleeves are respectively positioned at two sides of the net opening, the connecting part of the net sleeves and the net opening is wider and gradually narrowed to the end part, the end part is provided with a hook, and the mesh of the net sleeves is larger than the conventional mesh of the net bag; the flexible net plate is tightly attached to the side surface inside the net opening, and the mesh of the flexible net plate is larger than the conventional mesh of the net bag.
Advantageous effects
By adopting the structure, the intercepting device can utilize hydrodynamic force as a power source for unfolding the mesh bag assembly in the operation process, the intercepting device is normally stored in the storage barrel, the intercepting device can be quickly placed into water during operation, after the mesh bag assembly is placed into the water, hydrodynamic force generated under the towing of a certain ship speed can impact the mesh sleeves and the flexible mesh plates at the front end of the mesh bag, so that the mesh opening is expanded outwards, the mesh opening is smoothly opened, the storage barrel on the mesh bag assembly of the storage intercepting device moves backwards relative to the navigation direction of the ship under the action of water flow, and the mesh opening is fully unfolded through the stabilizing rope; the intercepting device keeps a certain distance between the mesh bag and the target tracking ship in the operation process, and only the mesh bag is in contact with the suspicious suspended floating object to implement intercepting and capturing, so that the use safety is improved.
Drawings
Fig. 1 is an operation schematic diagram of a single-ship dragging mesh bag type underwater suspended matter intercepting device.
Fig. 2 is a schematic view of a mesh bag assembly.
Fig. 3 is a top view of the mesh bag.
Fig. 4 is a left side view of the mesh bag.
Fig. 5 is a front view of the mesh bag.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
The invention is described in detail below by way of example with reference to the accompanying drawings.
Fig. 1 shows the posture of the single-ship dragging mesh bag type underwater suspended object intercepting device in the operation process, the intercepting device comprises a retracting rope 2 and a mesh bag component 3, a target tracking ship 1 drags the mesh bag component 3 through the retracting rope 2, and sonar for detecting underwater suspicious suspended objects is arranged on the target tracking ship 1. When the operation is not carried out, the intercepting device is stored on the target tracking ship 1, and when the operation is carried out, after the target tracking ship 1 reaches the operation area of the suspicious suspended floating object, the mesh bag component 3 is dragged into water through the retracting rope 2, and the mesh opening is fully unfolded to form an O shape, so that the suspicious suspended floating object is intercepted and captured.
Fig. 2 shows the posture of the net bag assembly 3 of the present invention after being deployed underwater, and the net bag assembly 3 includes a head line float 5, a head line weight 7, a storage cylinder 8 and a net bag 9. Wherein, the diameter of the net opening of the net bag 9 is larger, and gradually becomes smaller to the tail part, a certain number of head line floaters 5 are hung on the head line of the net bag 9 and used for providing buoyancy for the upper half part of the net opening of the net bag 9; a certain number of lower line weight blocks 7 are hung on the lower lines of the mesh bags 9 and used for providing sinking force for the lower half parts of the mesh openings of the mesh bags 9. The sinking force provided by the lower line weight 7 is slightly larger than the buoyancy provided by the upper line floater 5, and the specific numerical value is related to the running speed of the target tracking ship 1 and is generally measured by experiments. The float 5 of the head line and the weight 7 of the lower head line work together to make the net mouth of the net bag 9 open to a certain height in the vertical direction during the dragging process. Preferably, to reduce drag during towing, the headrope float 5 and the headrope weight 7 are streamlined to reduce their head-on drag.
For convenience of storage, when the storage device is not in operation, the mesh bag assembly 3 is stored in the storage barrel 8, the bottom of the inner cavity of the storage barrel 8 is provided with an ear ring connected with the tail end of the mesh bag 9, when the storage device is in operation, the mesh bag assembly 3 is taken out and put into water, and the storage barrel 8 is dragged at the tail end of the mesh bag 9; preferably, the storage cylinder 8 is a frustum-shaped streamline structure, which can reduce the resistance and wake flow generated when the storage cylinder 8 operates; the bottom and the side of the tail end of the storage cylinder 8 are provided with a plurality of through holes, and the hole opening direction is the downstream direction, so that the resistance effect of the storage cylinder 8 during operation can be reduced.
Fig. 3 to 5 are structural views of the mesh bag 9 of the present invention, fig. 3 is a plan view, fig. 4 is a left side view, and fig. 5 is a front view. The mesh bag 9 is provided with the mesh sleeves 6 and the flexible mesh plates 11 at the mesh openings, the mesh sleeves 6 and the flexible mesh plates 11 are good in tensile property, and the mesh knitting density is high, so that the mesh openings can be smoothly and fully unfolded around.
The net sleeves 6 are two and are respectively positioned at two sides of the net opening, the connecting part of the net sleeves 6 and the net opening is wider, the connecting part is gradually narrowed to the end part, the connecting part is approximately triangular, the end part is provided with a hook 12 for connecting with the retractable rope 2, the net sleeves 6 are made of materials (such as fiber ropes) with good tensile property, and the mesh of the net sleeves is larger than that of the conventional mesh of the net bag 9. The two retractable ropes 2 are respectively connected with the hooks of the two net sleeves 6, once the net sleeves 6 form an initial bow angle under water, the net sleeves 6 generate outward components under the action of hydrodynamic force in the dragging process, and the net opening is driven to be rapidly opened. Preferably, after entering water, the two net sleeves 6 are approximately in the same horizontal plane under the water, which is beneficial to keeping the net bag 9 in a stable posture.
The number of the flexible net plates 11 is eight, the flexible net plates are respectively clung to the side surface inside the net opening, the specific positions are that the left side and the right side of the net opening are respectively one, and the upper side and the lower side of the net opening are respectively one, four flexible net plates 11 are arranged between the four flexible net plates at equal intervals, the flexible net plates 11 are made of materials (such as fiber ropes) with good tensile property, and the meshes of the flexible net plates are larger than the conventional meshes of the mesh bags 9. The eight flexible net plates 11 generate outward components under the action of hydrodynamic force in the dragging process respectively, and drive the net openings to expand around rapidly.
During the dragging, in order to open the mesh opening into the shape of "o", the mesh opening is expanded at the same speed in all directions. However, the presence of two sleeves 6 in the horizontal direction can restrict the vertical expansion of the mesh opening, making it wider in the horizontal direction and narrower in the vertical direction, thus slowing down the full opening of the mesh opening. Therefore, it is preferable that the sum of the areas of the two flexible mesh panels 11 in the vertical direction and the four adjacent flexible mesh panels 11 is more than 2 times of the sum of the areas of the two mesh sleeves 6 and the two flexible mesh panels 11 in the horizontal direction, so that the spreading speed of the mesh opening in each direction is the same, which is beneficial to smooth and sufficient opening of the mesh opening.
Further, in order to make the net mouth of the net bag 9 open smoothly and fully, the net mouth of the net bag 9 is woven by high-strength fiber ropes according to a xxx mesh within a certain range, the rest part of the net bag is woven according to the xxx mesh, and preferably, the mesh of the rest part is more than 3 times larger than the mesh within a range of 300mm below the net mouth, so that larger resistance is provided at the net mouth, and smooth and full opening of the net mouth is facilitated.
In addition, a plurality of stabilizing ropes 10 are arranged around the end opening of the storage cylinder 8, the stabilizing ropes 10 are connected with the upper and lower headlines, the stabilizing ropes 10 are made of materials (such as fiber ropes) with good tensile property, and the length of the stabilizing ropes 10 is smaller than that of the mesh bags 9. The storage cylinder 8 generates resistance under the action of hydrodynamic force, the running speed at the initial stage of water entering is lower than that of the mesh bag component 3, and the stabilizing rope 10 connected to the storage cylinder 8 drags the upper and lower ropes to expand the mesh opening towards the periphery and backwards, so that the mesh opening can be fully opened; when the target tracking ship 1 turns or the ship body encounters surge, the stabilizing rope 10 prevents the storage cylinder 8 from swinging greatly and keeps the running posture of the mesh bag 9 in water.
The operation flow is as follows:
starting the target tracking ship and sailing towards underwater suspicious floating objects at a certain speed, after the ship arrives at a specified water area, laying a ship-borne sonar underwater, searching the suspicious floating objects, at the moment, carrying out net laying preparation by an operator on the target tracking ship 1, sailing to the downstream of the suspicious floating objects for a certain distance according to instructions, connecting a retractable rope 2 with a hook 12 at the end part of a net sleeve 6, laying a net bag assembly 3 into the water after connection, adjusting the course, impacting the net sleeve 6 and a flexible net plate 11 under the certain dragging speed by hydrodynamic force, expanding the net opening towards the periphery, and dragging the head lines and the tail lines of the net opening to move towards the directions opposite to the ship speed by a stabilizing rope 10 connected with a storage cylinder 8. By adopting the above mode, the net opening of the net bag 9 can be smoothly and fully opened.
Besides the arrangement, a depth setter 4 (as shown in fig. 1) can be arranged at the connection position of the retractable rope 2 and the net sleeve 6 of the single-ship towing net bag type underwater suspended object intercepting device for underwater depth setting of the intercepting device. The depth setting device 4 generates a downward acting force under the action of fluid power to drive the mesh bag 9 to move downwards so as to meet the depth setting requirement.
Specifically, the invention can use the following mode for depth setting to meet the depth setting requirements under different conditions:
a) static force depth setting: a lower line weight 7 with proper weight is arranged on a lower line of the mesh bag 9, and the weight of the upper line floater 5 is adjusted to meet the requirement of fixed depth;
b) according to the detected actual depth of the underwater suspicious suspended floating object, if the actual depth is more than 5m, a depth setter 4 is arranged at the joint of the retractable rope 2 and the net sleeve 6 to meet the depth setting requirement;
c) the ship speed of the target tracking ship 1 and the length of the retractable rope 2 are adjusted to meet the depth-setting requirement.
In summary, the above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A single ship drags the underwater suspended floating object intercepting device of the pocket type, wherein, including receiving and releasing the rope (2) and pocket assembly (3), the said single ship drags the pocket assembly (3) through receiving and releasing the rope (2); wherein,
the mesh bag component (3) comprises an upper line floater (5), a lower line weight (7), a storage cylinder (8) and a mesh bag (9); the head line floater (5) is hung on a head line of the mesh bag (9), the lower head line weight (7) is hung on a lower head line of the mesh bag (9), and the sinking force provided by the lower head line weight (7) is larger than the buoyancy force provided by the head line floater (5); the storage cylinder (8) is dragged at the tail part of the mesh bag (9), the storage cylinder (8) is connected with a mesh opening of the mesh bag (9) through a stabilizing rope (10), and the length of the stabilizing rope (10) is smaller than that of the mesh bag (9); and,
the mesh bag (9) is provided with two mesh sleeves (6) and a flexible mesh plate, the two mesh sleeves (6) are respectively positioned at two sides of the mesh opening, the connecting part of the mesh sleeves (6) and the mesh opening is wider, the connecting part is gradually narrowed to the end part, the end part is provided with a hook (12), and the mesh of the mesh sleeves (6) is larger than the conventional mesh of the mesh bag (9); the flexible net plate is tightly attached to the side surface inside the net opening, and the mesh of the flexible net plate is larger than the conventional mesh of the net bag (9).
2. An intercepting device according to claim 1, characterized in that the mesh bag unit (3) is stored in the storage tank (8) when not in operation.
3. Intercepting device according to claim 1, characterized in that the reservoir (8) is of a streamlined design, with through holes in the downstream direction being provided in the bottom and in the side.
4. Intercepting device according to claim 1, characterized in that the tensile properties of the net sleeve (6) are higher than those of conventional materials of the net bag (9).
5. Intercepting device according to claim 1, characterized in that the tensile properties of the flexible web are higher than those of conventional materials of mesh bags (9).
6. Intercepting device according to claim 1, characterized in that, in operation, the two net sleeves (6) are at the same level.
7. The intercepting apparatus defined in claim 1 wherein there are eight flexible screens, each of which fits closely to the side of the inside of the portal, one on each of the left and right sides of the portal, one on each of the upper and lower sides of the portal, and four of which are disposed equidistantly at the remaining positions.
8. The intercepting apparatus according to claim 9, wherein the sum of the areas of two flexible net panels in the vertical direction and four flexible net panels adjacent thereto is more than 2 times the sum of the areas of two net sleeves (6) and two flexible net panels in the horizontal direction during operation.
9. The intercepting apparatus of claim 1 wherein the mesh size outside the 300mm range inside the portal is greater than the mesh size within the 300mm range inside the portal by a factor of more than 3.
10. The intercepting device according to claim 1, wherein a depth setter (4) is installed at the connection of the retractable rope (2) and the net sleeve (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110340941 CN102410786B (en) | 2011-11-02 | 2011-11-02 | Towing net bag type device for intercepting suspended matter in water for single ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110340941 CN102410786B (en) | 2011-11-02 | 2011-11-02 | Towing net bag type device for intercepting suspended matter in water for single ship |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102410786A true CN102410786A (en) | 2012-04-11 |
| CN102410786B CN102410786B (en) | 2013-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110340941 Expired - Fee Related CN102410786B (en) | 2011-11-02 | 2011-11-02 | Towing net bag type device for intercepting suspended matter in water for single ship |
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| Country | Link |
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| CN (1) | CN102410786B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103790145A (en) * | 2013-01-05 | 2014-05-14 | 扬州三江环安设备厂 | Mesh-bag type water surface cleaning device dragged by single ship |
| CN106403717A (en) * | 2015-07-27 | 2017-02-15 | 郭三学 | Boat blocking device |
| CN115342689A (en) * | 2022-08-12 | 2022-11-15 | 广州海洋地质调查局 | Quick interference and maneuvering destruction method for sea battlefield enemy reconnaissance system |
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| US2081146A (en) * | 1933-02-20 | 1937-05-25 | William C Herrington | Trawl net |
| GB712002A (en) * | 1952-05-10 | 1954-07-14 | Eric Harold Forrester | Improvements in or relating to fishing trawls |
| CN2090160U (en) * | 1991-05-03 | 1991-12-11 | 威海网具厂 | Superficial drawn net |
| CN2091534U (en) * | 1990-11-21 | 1992-01-01 | 太仓县浮桥渔网厂 | Round mouth quick trawl net with variable water layer |
| CN2225134Y (en) * | 1995-04-27 | 1996-04-24 | 邹永华 | Trawlnet |
| US20050160656A1 (en) * | 2002-03-22 | 2005-07-28 | Safwat Sheriff A. | Self-spreading trawls having a high aspect ratio mouth opening |
| CN1714633A (en) * | 2004-07-01 | 2006-01-04 | 牛顿株式会社 | Fishing net for dra net fishing |
| CN1781367A (en) * | 2004-12-03 | 2006-06-07 | 中国水产科学研究院东海水产研究所 | Single dragging rope self expanding type single ship middle layer dragnet |
| CN202304610U (en) * | 2011-11-02 | 2012-07-04 | 中国船舶重工集团公司第七一〇研究所 | Single-boat dragging mesh bag type underwater floating object interception device |
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2011
- 2011-11-02 CN CN 201110340941 patent/CN102410786B/en not_active Expired - Fee Related
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2081146A (en) * | 1933-02-20 | 1937-05-25 | William C Herrington | Trawl net |
| GB712002A (en) * | 1952-05-10 | 1954-07-14 | Eric Harold Forrester | Improvements in or relating to fishing trawls |
| CN2091534U (en) * | 1990-11-21 | 1992-01-01 | 太仓县浮桥渔网厂 | Round mouth quick trawl net with variable water layer |
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| CN202304610U (en) * | 2011-11-02 | 2012-07-04 | 中国船舶重工集团公司第七一〇研究所 | Single-boat dragging mesh bag type underwater floating object interception device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103790145A (en) * | 2013-01-05 | 2014-05-14 | 扬州三江环安设备厂 | Mesh-bag type water surface cleaning device dragged by single ship |
| CN106403717A (en) * | 2015-07-27 | 2017-02-15 | 郭三学 | Boat blocking device |
| CN115342689A (en) * | 2022-08-12 | 2022-11-15 | 广州海洋地质调查局 | Quick interference and maneuvering destruction method for sea battlefield enemy reconnaissance system |
| CN115342689B (en) * | 2022-08-12 | 2023-03-10 | 广州海洋地质调查局 | Quick interference and maneuvering destruction method for sea battlefield enemy reconnaissance system |
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| CN102410786B (en) | 2013-09-18 |
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Application publication date: 20120411 Assignee: Qingdao Hisun Ocean Equipment Co., Ltd. Assignor: No.710 Inst. China Ship Heavy Industry Group Corp Contract record no.: 2014370000115 Denomination of invention: Towing net bag type device for intercepting suspended matter in water for single ship Granted publication date: 20130918 License type: Exclusive License Record date: 20140704 |
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