Background technology
Along with the development of modern strategic situation, for the countermeasure that has considerable scale from aerial and the strike on ground, yet, be still the weak link in the defence under water hidden attack, also there is managerial difficulty simultaneously, be the emphasis of security protection under water.The domestic and international at present measure of security protection under water to important port or waters employing is to arrange the detection sonar under water mostly, and round-the-clock undersea detection and supervision are carried out in the waters in the certain limit, when finding suspicious object, takes following mode to tackle:
1, sends diver or frogman under water;
2, lay underwater robot;
3, discharge well-trained marine animal, like dolphin.
Though said method can be tackled and handle suspicious outstanding drift in the water to a certain extent, also shows following defective:
For diver who sends or frogman under water, it needs certain response time, and in the water suspicious outstanding drift in case break away from the investigative range of surveying sonar and just be difficult to search rapidly once more; On the other hand, diver or the speed of service of frogman in water is slower under water can't satisfy interception as a rule and catch requirement, and the diver or under water frogman's safety also have hidden danger.
For the robot that lays, its speed of service in water is slower, and mobility is poor, and suspicious outstanding drift also is difficult to carry out reliably, effectively interception and seizure even search.
For discharging well-trained marine animal; Only have at present and abroad marine animal (like dolphin etc.) is trained and be used for the search and the warning of suspicious outstanding drift under water; But do not see the report that it is caught suspicious outstanding drift; Do not see training and relevant report yet, be of limited application fresh water animals.
Thus it is clear that,, also far can not reach user demand to the interception and the capturing technology that hang drift in the water though at present detection, the tracking technique that hangs drift under water had certain development.
Specific embodiment
Below in conjunction with the accompanying drawing embodiment that develops simultaneously, the present invention is described in detail.
Fig. 1 is the outstanding attitude of floating article interception device in operation process in the single ship drawn net of the present invention pocket type water; This blocking apparatus comprises folding and unfolding rope 2 and mesh bag assembly 3; Target following ship 1 is through folding and unfolding rope 2 drawn net bag assemblies 3, and target following ship 1 is provided with the detection sonar of suspicious outstanding drift under water.During not operation, blocking apparatus leaves on the target following ship 1, during operation; After target following ship 1 arrives the operation area of suspicious outstanding drift, with the 3 traction entry of mesh bag assembly, and network interface is fully launched through folding and unfolding rope 2; Form " zero " shape, suspicious outstanding drift is implemented interception and caught.
Fig. 2 shows the attitude after mesh bag assembly 3 of the present invention launches under water, and mesh bag assembly 3 comprises headline float 5, infraclass pouring weight 7, storage cylinder 8 and mesh bag 9.Wherein, the diameter of the network interface of mesh bag 9 is bigger, and is gradually little to tail diameter, articulates the headline float 5 of some at the headline of mesh bag 9, and the first half that is used to the network interface of mesh bag 9 provides buoyancy; Articulate the infraclass pouring weight 7 of some in the infraclass of mesh bag 9, the latter half that is used to the network interface of mesh bag 9 provides down force.The down force that infraclass pouring weight 7 provides is slightly larger than the buoyancy that headline float 5 provides, and concrete numerical value is relevant with the speed of service of target following ship 1, is generally recorded by test.Headline float 5 and 7 actings in conjunction of infraclass pouring weight make the network interface of mesh bag 9 in the towing process, open certain altitude in vertical direction.Preferably, for reducing the resistance in the towing process, headline float 5 is streamlined with infraclass pouring weight 7, to reduce its head resistance.
For ease of preserving, during not operation, mesh bag assembly 3 leaves in the storage cylinder 8, and storage cylinder 8 intracavity bottoms are provided with the earrings that is connected with the not end of mesh bag 9, during operation mesh bag assembly 3 are taken out and throw in entry, and storage cylinder 8 towings are at the end of mesh bag 9; Preferably, storage cylinder 8 is the streamlined structure of taper type, the resistance and the wake flow that produce in the time of can reducing storage cylinder 8 operations; Some through holes are opened in tail end bottom and side at storage cylinder 8, and the perforate direction is a downbeam, the drag effect of storage cylinder 8 in the time of can reducing to move.
Fig. 3-the 5th, the structure chart of mesh bag 9 of the present invention, Fig. 3 are vertical view, and Fig. 4 is a left view, and Fig. 5 is a front view.Mesh bag 9 has wing 6 and flexible web plate 11 at the network interface place, the tensile property of wing 6 and flexible web plate 11 is good, and it is big that net is compiled density, be used to help network interface to around smoothly, launch fully.
Totally two of wings 6 lay respectively at the network interface both sides, the coupling part broad of wing 6 and network interface; Gradually narrow to the end, roughly triangular in shape, the end has hook 12; Be used for linking to each other with folding and unfolding rope 2, wing 6 is the good material of pull resistance (like cordage), and its mesh is greater than the conventional mesh of mesh bag 9.Article two, folding and unfolding rope 2 is connected with the hook of two wings 6 respectively, in case wing 6 has formed initial bow angle under water, wing 6 will receive hydrodynamic effect to produce outside component in the towing process, drives network interface and opens fast.Preferably, after the entry, two wings 6 roughly are in same horizontal plane under water, help making mesh bag 9 to keep attitude stabilization.
Totally eight of flexible web plates 11; Be close to the side of network interface separately with the lining; Particular location is each one of each one of the and arranged on left and right sides of network interface, upper and lower both sides; Equidistance is provided with four again between these four, and flexible web plate 11 is the good material of pull resistance (like cordage), and its mesh is greater than the conventional mesh of mesh bag 9.Eight flexible web plates 11 receive hydrodynamic effect to produce outside component separately in the towing process, drive network interface apace to expansion all around.
In the towing process, open formation " zero " shape for making network interface, need make the development rate of network interface on all directions identical.Yet the existence of two wings 6 on the horizontal direction can pin down the extends perpendicular of network interface, makes that network interface broadens in the horizontal direction, narrows down on the vertical direction, thereby slow down fully opening of network interface.Therefore; Preferably; The area sum of four flexible web plates 11 that two flexible web plates 11 on the vertical direction are set and are adjacent is two wings 6 and more than 2 times of area sum of two flexible web plates 11 on the horizontal direction; So that the development rate of network interface on all directions is identical, help network interface smoothly, open fully.
Further; For the network interface that makes mesh bag 9 smoothly, open fully, the network interface of mesh bag 9 with adopt in the certain limit of lining the high strength fibre rope by * * the mesh establishment, remainder by * * * the mesh establishment; Preferably; The mesh of remainder greater than network interface with the mesh in the 300mm scope of lining more than 3 times, thereby at the network interface place bigger resistance is provided, help network interface smoothly, open fully.
In addition, around the port of storage cylinder 8, be provided with some stable ropes 10, stable rope 10 links to each other with upper and lower guiding principle, and stable rope 10 uses the good material (like cordage) of pull resistances, stable 10 the length length less than mesh bag 9 of restricting.Storage cylinder 8 produces resistance under hydrodynamism, the speed of service at entry initial stage is less than the speed of mesh bag assembly 3, be connected stable rope 10 on the storage cylinder 8 drag upper and lower guiding principle make network interface to around, expansion backward, be beneficial to fully opening of network interface; Turn round or hull runs into when surging at target following ship 1, stable rope 10 makes storage cylinder 8 unlikely significantly swings, keeps the operation attitude of mesh bag 9 in water.
Work flow:
Start the target following ship and with certain speed to suspicious outstanding drift navigation under water, arrive specify the waters after, shipboard sonar is distributed under water; Search for suspicious outstanding drift, preparations of arranging net of the operating personnel on this moment target following ship 1, and by instruction navigation suspicious outstanding drift downstream certain distance extremely; The hook 12 of folding and unfolding rope 2 with wing 6 ends is connected, after the connection with in the 3 cloth entry of mesh bag assembly, and the adjustment course; Under certain towed speed; Hydrodynamic impact wing 6 and flexible web plate 11, network interface are to expansion all around, and the upper and lower guiding principle that the stable rope 10 that links to each other with storage cylinder 8 drags network interface is to the opposite direction motion of ship's speed.Employing is with upper type, and the network interface of mesh bag 9 is able to smoothly, opens fully.
Except that above-mentioned setting, the folding and unfolding rope 2 that also can in single ship drawn net pocket type water of the present invention, hang the floating article interception device is installed depth controller 4 (as shown in Figure 1) with the junction of wing 6, is used for the underwater fixed depth of blocking apparatus.Depth controller 4 produces downward active force under the fluid dynamic effect, drive mesh bag 9 and move downward, and reaches the depthkeeping requirement.
Particularly, the present invention can use following mode depthkeeping, and the depthkeeping that satisfies under the different situations requires:
A) static(al) depthkeeping: dispose the infraclass pouring weight 7 of approrpiate wts in the infraclass of mesh bag 9, and adjust the weight of headline float 5, reach the depthkeeping requirement;
B) according to the actual grade of the suspicious outstanding drift under water that detects,, depth controller 4 is installed, is reached the depthkeeping requirement in the folding and unfolding rope 2 and the junction of wing 6 as greater than 5m;
C) ship's speed of adjustment target following ship 1 and the length of folding and unfolding rope 2 reach the depthkeeping requirement.
In sum, more than being merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.