CN220199527U - Inter-ship distance measurement connecting device - Google Patents

Abstract

The utility model relates to the technical field of ships, in particular to a distance measurement connecting device between ships, which comprises a connecting plate, wherein a hinge is fixedly arranged on the connecting plate, fixing devices are movably connected onto the connecting plate, the number of the hinge and the number of the fixing devices are two, a working box is arranged between the two fixing devices, and a distance measurement device is arranged between the fixing devices and the working box. According to the utility model, the distance measuring device is arranged, and the movement quantity of the distance measuring strip is measured in real time through the data analyzer, so that the distance between two vessels in a linkage state is monitored in real time, the linked vessels always keep a safe distance, the collision of the vessels or the breakage of the connecting device caused by opposite or opposite heading of the vessels is avoided, the linkage sailing effect is influenced, and the problem that the whole fleet is involved in crisis due to the fact that the vessels are easy to collide when the existing vessels are connected through iron chains or cables is solved.

Description

Inter-ship distance measurement connecting device

Technical Field

The utility model relates to the technical field of ships, in particular to a distance measuring and connecting device between ships.

Background

The navigation safety of the marine vessel in severe weather is highly valued by captain and homonymous personnel, and the navigation in the environments of strong stormy waves, thunderstorm weather and strong fog belongs to the main expression forms of severe weather and sea conditions. Under thunderstorm and heavy fog environment, the navigation visual field of a fleet can be greatly disturbed, and information transmission equipment such as radar and navigation are easily affected by the environment, and the information transmission equipment is lost in the process of long-distance signal transmission, so that the functions of the information transmission equipment are lost, and the fleet can easily yaw the single ship, and can be scattered or even lost with the fleet when sailing under the environment.

To solve the problem, as early as three countries, a method of connecting the boat by the iron rope exists, the side surface of the existing ship is also provided with a storage bin, and an iron chain or a cable is arranged in the storage bin, when communication equipment is damaged, the method is used for connecting a plurality of single ships into a whole, so that the single ships are prevented from losing, the iron chain or the cable is used for connecting the two ships, although the two ships can be bound, in a high-storm environment, the two bound ships are easy to collide, the ships are easy to damage due to frequent collision, water leakage of a deck and even fracture of a keel are caused, the ships sink, and in a linkage state, after the single ships sink, another linkage ship is difficult to travel, so that a linkage reaction is caused, and the whole fleet is sunk into a crisis. In view of this, we propose an inter-vessel ranging connection.

Disclosure of Invention

The utility model aims to provide a ship-to-ship distance measuring and connecting device, which solves the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a distance measuring connecting device between boats, includes the connecting plate, fixedly connected with hinge on the connecting plate, swing joint has fixing device on the connecting plate, hinge, fixing device's quantity is two, two be provided with the work box between the fixing device, be provided with range finding device between fixing device and the work box, be provided with alarm device on the work box, fixedly connected with protection casing on the work box outer wall top surface, range finding device is including range finding strip, baffle, pivot, gear, mounting bracket, angle sensor, data analysis appearance, range finding strip fixed connection is on fixing device, range finding strip runs through the work box and with work box sliding connection, baffle fixed connection is on the inner wall of work box, the pivot passes through the bearing rotation to be connected on the inner wall center of work box, gear fixed sleeve is established in the pivot, gear and two range finding strips mesh simultaneously, the quantity of range finding strip, baffle are two the axis center symmetry is all used to range finding strip, baffle top surface fixed mounting is on the outer wall top surface of work box, range finding strip runs through the pivot and is located the angle sensor with the pivot, the sensor is located the pivot and is fixed with the outer portion of work box, the sensor is located the sensor.

Preferably, the alarm device comprises a power supply bin, a storage battery, a conductive adhesive tape, a conductive block, a first alarm, a first conductive sheet, a second alarm and a second conductive sheet, wherein the power supply bin is fixedly arranged on the bottom surface of the outer wall of a working box, the storage battery is fixedly arranged on the inner wall of the power supply bin, the number of the conductive adhesive tape and the number of the conductive block are two, the conductive adhesive tape is embedded on the bottom surface of the working box, the conductive adhesive tape is respectively arranged on two sides of two baffles, the conductive adhesive tape is respectively electrically connected with the positive electrode and the negative electrode of the storage battery, the conductive block is respectively fixedly connected with one end of the two ranging strips in the working box, the conductive block is respectively and slidably connected with the conductive adhesive tape, the first alarm and the second alarm are fixedly arranged on the top surface of the outer wall of the working box, the number of the conductive sheet is two, the conductive sheet is respectively embedded on two sides of the inner wall of the working box, the conductive sheet is respectively embedded on the inner wall of the working box, the conductive sheet is respectively embedded on the inner wall of the working box, the two baffle is close to the two distance measuring strips, the first alarm and the second alarm is electrically connected with the positive electrode and the second alarm respectively.

Preferably, the fixing device comprises a fixing plate, a locking plate and a bolt, wherein a chute is formed in one side of the fixing plate, one end of the connecting plate is clamped and connected in the chute in a sliding manner, so that the connecting plate can deviate a certain distance relative to the working box, a movable interval exists between two connecting ship bodies, the two ship bodies do not need to keep constant-speed parallel driving all the time, driving difficulty of the ship bodies after interlocking is reduced, the locking plate is connected in the chute in a sliding manner, one side, close to the connecting plate, of the locking plate is roughly provided, the bolt penetrates through the fixing plate and is in threaded connection with the fixing plate, one end of the bolt, which is located inside the fixing plate, is connected with the locking plate in a rotating manner through a screw bearing, and the locking plate and the bolt are arranged.

Preferably, the distance measuring device further comprises two telescopic rods, one end of each telescopic rod is fixedly connected with the fixing device, the other end of each telescopic rod is fixedly connected with the outer wall of the working box, the two telescopic rods are arranged in a gear axis center symmetry mode, stress of the distance measuring strips is shared by arranging the telescopic rods, connection stability between the fixing device and the working box is improved, the working box is prevented from being excessively large in rainwater or sea wave impact force, the distance measuring strips are broken, and the use of the distance measuring device is affected.

Preferably, the working box, the distance measuring strip and the baffle are all made of polyimide materials, polyimide refers to a polymer with imide rings on a main chain, is one of organic high polymer materials with optimal comprehensive performance, has high temperature resistance reaching more than 400 ℃, long-term use temperature range of-200-300 ℃, has no obvious melting point in part, high insulating property, dielectric constant of 4.0 under 103 Hz, dielectric loss of only 0.004-0.007, belongs to F-H level insulation, and is a high-hardness insulating material. Can keep good insulativity when guaranteeing that the device adapts to various adverse circumstances, avoid the battery to take place the short circuit, if and only when two conducting strips one or two conducting strips two contact simultaneously, can trigger alarm one or alarm two work, ensure alarm information's accuracy and reliability, fixedly connected with joint strip in the through-hole that the work box was run through by the range finding strip, through setting up joint strip, avoid range finding strip slip in-process with liquid carry into the work box, drip on the conducting strip, lead to electric leakage and short circuit, influence device normal work.

Preferably, the bottom surface of the conductive block is contacted with the bottom surface of the inner wall of the working box, the top surface of the conductive block is contacted with the top surface of the inner wall of the working box, when the conductive block is contacted with the side inner wall of the working box, the two conductive blocks are respectively contacted with the first conductive sheet, and when the conductive block is contacted with the conductive adhesive tape, the two conductive blocks are respectively contacted with the second conductive sheet, so that when the two conductive blocks move to the two sides of the working box, the first alarm is electrified to work, the driver is prompted that the distance between the ship bodies is too small, the collision risk exists, and the ship bodies need to be driven in a separated and offset way; when the two conductive blocks move to be in contact with the baffle plate, the alarm II is electrified to work so as to prompt a driver that the distance between the ship bodies is overlarge, and the connecting device is easy to pull and break, so that the ship bodies need to run in opposite directions in a shifting mode.

Preferably, the first alarm, the first conducting strip, the second alarm and the second conducting strip are completely covered by the protective cover, and are shielded by the protective cover, so that rainwater or spray is prevented from splashing on the devices, the devices are prevented from being stained with water and leaking electricity, and the service life is influenced.

By means of the technical scheme, the utility model provides a distance measuring and connecting device between ships. The method has at least the following beneficial effects:

(1) According to the utility model, the distance measuring device is arranged, and the movement quantity of the distance measuring strip is measured in real time through the data analyzer, so that the distance between two vessels in a linkage state is monitored in real time, the linked vessels always keep a safe distance, the collision of the vessels or the breakage of the connecting device caused by opposite or opposite heading of the vessels is avoided, the linkage sailing effect is influenced, and the problem that the whole fleet is involved in crisis due to the fact that the vessels are easy to collide when the existing vessels are connected through iron chains or cables is solved.

(2) According to the utility model, by arranging the alarm device, when the two conductive blocks move to the two sides of the working box, the first alarm device is triggered to work, the fact that the distance between the ship bodies of the driver is too large is prompted, the connecting device is easy to break due to too high load, the two conductive blocks need to be close to each other for running, when the two conductive blocks move to be in contact with the two baffles, the second alarm device is triggered to work, the fact that the distance between the ship bodies of the driver is too small is prompted, collision risks exist between the ship bodies, and the driver needs to run separately is prevented from being fully focused on obstacles on a route in a severe environment, and the distance between the two ship bodies is ignored, so that a series of safety problems are caused.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this application:

FIG. 1 is a schematic diagram of the overall structure of the present utility model;

FIG. 2 is a cross-sectional view of the overall structure of the present utility model;

FIG. 3 is a top cross-sectional view of the fixture of the present utility model;

FIG. 4 is a schematic view of the working box of the present utility model in a broken away configuration;

fig. 5 is an enlarged view of the structure a in fig. 2.

In the figure: 1. a connecting plate; 2. a hinge; 3. a fixing device; 301. a fixing plate; 302. a locking plate; 303. a bolt; 4. a working box; 5. a distance measuring device; 501. a ranging bar; 502. a telescopic rod; 503. a baffle; 504. a rotating shaft; 505. a gear; 506. a mounting frame; 507. an angle sensor; 508. a data analyzer; 6. an alarm device; 601. a power supply bin; 602. a storage battery; 603. a conductive adhesive tape; 604. a conductive block; 605. an alarm I; 606. a first conductive sheet; 607. an alarm II; 608. a second conductive sheet; 7. and a protective cover.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1-5, the present utility model provides a technical solution:

the utility model provides a distance measuring connecting device between boats, including connecting plate 1, fixedly mounted has hinge 2 on the connecting plate 1, swing joint has fixing device 3 on the connecting plate 1, fixing device 3 is including fixed plate 301, locking plate 302, the spout has been seted up to one side of fixed plate 301, connecting plate 1 one end joint and sliding connection are in the spout, set up like this and make connecting plate 1 can carry out the skew of certain distance relative work box 4, thereby make there is an activity interval between two connection hulls, make two hulls need not to remain constant speed parallel driving throughout, reduce the back hull driving degree of difficulty of interlocking, locking plate 302 sliding connection is in the spout, one side that locking plate 302 is close to connecting plate 1 is coarse setting, bolt 303 runs through fixed plate 301 and with fixed plate 301 threaded connection, the one end that bolt 303 is located the inside of fixed plate 301 passes through screw bearing and locking plate 302 swivelling joint, through setting up locking plate 302 and bolt 303, can be when not needing connecting plate 1 and fixed plate 301 to slide relatively, make locking plate 302 compress tightly fixed with connecting plate 1, reach the fixed purpose, the pilot can select locking or release 1, thereby change the state between two hulls 1, the fixed device is fixed connection 4, the top surface is fixed device is set up for between the connecting plate 3, and the top surface is fixed device is fixed to the connecting plate 4, and the top surface is fixed device is fixed to the top surface is 4, and is fixed to the top surface device is fixed to be between the connecting plate 3, and the top surface is fixed to be 4.

Further, the ranging device 5 comprises a ranging bar 501, a baffle 503, a rotating shaft 504, a gear 505, a mounting rack 506, an angle sensor 507 and a data analyzer 508, wherein the ranging bar 501 is fixedly connected to the fixing device 3, the ranging bar 501 penetrates through the working box 4 and is in sliding connection with the working box 4, the ranging device 5 further comprises two telescopic rods 502, one ends of the telescopic rods 502 are fixedly connected with the fixing device 3, the other ends of the telescopic rods 502 are fixedly connected with the outer wall of the working box 4, the two telescopic rods 502 are arranged in a center-symmetrical mode through the axes of the gear 505, stress of the ranging bar 501 is shared by the telescopic rods 502, the connection stability between the fixing device 3 and the working box 4 is enhanced, the working box 4 is prevented from being broken due to overlarge impact force of rainwater or sea waves, the influence on the device is used, the baffle 503 is fixedly connected to the inner wall of the working box 4, the ranging bar 501 and the baffle 503 are made of polyimide materials, polyimide refers to a polymer with imide ring on a main chain, the polyimide is one of organic polymer material with optimal comprehensive performance, the polyimide material has a high temperature resistance of more than 400 ℃, the long-term use temperature range of-200 Hz, the dielectric constant is not high enough to be a dielectric constant of 0.004, and the dielectric constant is no obvious, and the dielectric constant is 0.004, and the dielectric constant is 0 to 300 Hz. Can keep good insulativity when guaranteeing that the device adapts to various adverse circumstances, avoid battery 602 to take place the short circuit, if and only when two conducting strips one 606 or two conducting strips two 608 contact simultaneously, can trigger alarm one 605 or alarm two 607 work, ensure alarm information's accuracy and reliability, fixedly connected with joint strip in the through-hole that work box 4 was run through by range finding strip 501, through setting up the joint strip, avoid range finding strip 501 slip in-process with liquid carry-in work box 4, drip on the joint strip 603, lead to electric leakage and short circuit, influence device normal work.

Still further, the rotating shaft 504 is rotatably connected to the center of the inner wall of the working box 4 through a bearing, the gear 505 is fixedly sleeved on the rotating shaft 504, the gear 505 is simultaneously meshed with the two distance measuring strips 501, the number of the distance measuring strips 501 and the number of the baffle plates 503 are two, the two distance measuring strips 501 and the baffle plates 503 are symmetrical by taking the center of the rotating shaft 504 as the center of the shaft, the mounting frame 506 is fixedly mounted on the top surface of the outer wall of the working box 4, the rotating shaft 504 penetrates through the working box 4 and the mounting frame 506 and is rotatably connected with the working box 4 and the mounting frame 506, the angle sensor 507 is fixedly mounted on the mounting frame 506, the angle sensor 507 is sleeved on a section of the rotating shaft 504 outside the working box 4, and the data analyzer 508 is fixedly mounted on the inner wall of the protective cover 7.

In addition, alarm device 6 is including power storehouse 601, battery 602, the conducting strip 603, conducting block 604, alarm first 605, conducting strip first 606, alarm second 607, conducting strip second 608, power storehouse 601 fixed mounting is on the outer wall bottom surface of work box 4, battery 602 fixed mounting is on the inner wall of power storehouse 601, the quantity of conducting strip 603 and conducting block 604 is two, two conducting strips 603 are all inlayed and are established on the bottom surface of work box 4, and two conducting strips 603 set up respectively in the both sides of two baffles 503, two conducting strips 603 respectively with the positive and negative electric connection of battery 602, two conducting block 604 respectively fixed connection is on the one end that two ranging strips 501 are located the work box 4, two conducting strip 604 respectively with two conducting strips 603 sliding connection, alarm first 605 and alarm second 607 are all fixed mounting on the outer wall top surface of work box 4, the quantity of conducting strip first 606 and conducting strip second 608 is two, two conducting strips 606 are inlayed respectively in the inner wall both sides of work box 4, two conducting strips 608 are inlayed respectively and are established respectively in the inner wall of work box 4 and are close to two baffles 503, two electric connection of two conducting strips 608 and two positive and negative electric connection respectively.

It should be noted that, when the bottom surface of the conductive block 604 contacts with the bottom surface of the inner wall of the working box 4, the top surface of the conductive block 604 contacts with the top surface of the inner wall of the working box 4, and when the conductive block 604 contacts with the side inner wall of the working box 4, the two conductive blocks 604 contact with the first conductive sheet 606 respectively, and when the conductive block 604 contacts with the conductive adhesive tape 603, the two conductive blocks 604 contact with the second conductive sheet 608 respectively, so that when the two conductive blocks 604 move to the two sides of the working box 4, the first alarm 605 is electrified to work, so that the distance between the ship bodies of the driver is too small, the collision risk exists, and the ship bodies need to be driven in a separated and offset way; when the two conductive blocks 604 move to be in contact with the baffle 503, the alarm II 607 is electrified to work, so that the driver is prompted that the distance between ship bodies is too large, the connecting device is easy to pull and break, the ship bodies need to be shifted to run in opposite directions, the alarm I605, the conductive sheet I606, the alarm II 607 and the conductive sheet II 608 are completely covered by the protective cover 7, and the protective cover 7 is used for protecting and shielding the equipment, so that rainwater or spray is prevented from splashing on the equipment, the equipment is prevented from being stained with water and leaking electricity, and the service life is influenced.

The data analyzer 508 in this embodiment is actually an intelligent calculator, and can operate the received data according to a preset relational expression, and output the operation result, where the existing computer has this capability, and therefore, the description thereof is omitted.

The electrical components and devices in this embodiment are all existing devices known in the art, and the protection of the present utility model does not relate to improvement of the internal structures of these devices, and the electrical components and devices in this embodiment are all electrically connected to an external master controller, and the master controller may be a conventional known device for controlling a computer or the like.

When the inter-ship distance measuring connecting device is used, when a fleet is about to drive into a severe environment sea area, the connecting device is taken out, two connecting plates 1 are respectively hinged on decks of two ship bodies through two hinges 2, data debugging is carried out, the data analyzer 508, the first alarm 605 and the second alarm 607 are respectively connected with control panels of the two ship bodies in a signal mode, the first alarm 605 and the second alarm 607 are respectively connected with different warning devices (indicator lights), distance change on the control panels is observed through driving the two ship bodies to approach or navigate away, the data analyzer 508 is calibrated, and when the distance between the ship bodies reaches the minimum safety distance, whether the warning device connected with the first alarm 605 works or not is observed, and when the distance between the ship bodies reaches the maximum safety distance, whether the warning device connected with the second alarm 607 works or not is ensured, and information transmitted by the distance measuring device 5 and the warning device 6 in the navigation process is true and reliable.

After preparation is completed, when a fleet enters a severe sea area, two ship bodies are subjected to similar or separated deflection under the influence of external factors, in the ship body deflection process, the angle sensor 507 transmits the deflection angle of the rotating shaft 504 to the data analyzer 508 in real time, the data analyzer 508 obtains a real-time distance L by adopting a preset relation L=l-2C (theta/360) according to the clockwise deflection angle theta of the rotating shaft 504, the circumference C of the gear 505 and the initial distance L of the two ship bodies, and transmits the real-time distance L to a control panel of a cab, and a driver adopts corresponding driving measures through the distance value L displayed by the control panel, so that L is always kept in a safe range, and the ship bodies always keep safe navigation without collision of the ship bodies.

When the driver fails to observe the hull pitch in time, resulting in the hull pitch exceeding the safety value, the two conductive blocks 604 are moved to both sides of the working box 4 or are in contact with the two baffles 503, respectively. When the two conductive blocks 604 move to the two sides of the working box 4, the two conductive blocks 604 are respectively contacted with the two first conductive sheets 606, so that a closed loop is formed between the first alarm 605 and the storage battery 602, the first alarm 605 is electrified to work, so that warning equipment connected with the first alarm 605 in a signal manner works, a driver is reminded of too close distance between ship bodies, collision risk exists, and the ship bodies need to run in a timely manner with a separation offset, so that the ship bodies keep a safe distance; when the two conductive blocks 604 move to contact with the two baffles 503, the two conductive blocks 604 contact with the two conductive plates II 608 respectively, so that a closed loop is formed between the second alarm 607 and the storage battery 602, the second alarm 607 is electrified to work, so that the warning equipment connected with the second alarm 607 in a signal mode works, a driver is prompted to measure that the distance between ship bodies is overlarge, the tension of the continuous striking device is overlarge, the fracture risk exists, the ship bodies need to run in a similar offset manner in time, and the ship bodies keep a safe distance to run.

When the fleet of ships leaves the bad sea, the hinge 2 is taken down from the deck, so that the connecting plate 1 is separated from the ship body, and the connecting device is integrally stored for the next use.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a distance measurement connecting device between boats, includes connecting plate (1), its characterized in that: the novel anti-theft device is characterized in that a hinge (2) is connected to the connecting plate (1), a fixing device (3) is connected to the connecting plate (1), a working box (4) is arranged between the two fixing devices (3), a distance measuring device (5) is arranged between the fixing device (3) and the working box (4), an alarm device (6) is arranged on the working box (4), and a protective cover (7) is connected to the working box (4);

the utility model provides a distance measuring device (5) is including range finding strip (501), baffle (503), pivot (504), gear (505), mounting bracket (506), angle sensor (507), data analysis appearance (508), range finding strip (501) are connected on fixing device (3), range finding strip (501) and work box (4) sliding connection, baffle (503) are connected in work box (4), pivot (504) rotate and are connected in work box (4), gear (505) are connected in pivot (504), gear (505) and range finding strip (501) meshing, mounting bracket (506) are connected on work box (4), pivot (504) are all rotated with work box (4) and mounting bracket (506) and are connected, angle sensor (507) are connected on mounting bracket (506), just angle sensor (507) cover is established in pivot (504), data analysis appearance (508) are connected on protection casing (7).

2. An inter-vessel ranging link as claimed in claim 1, wherein: the alarm device (6) comprises a power supply bin (601), a storage battery (602), a conductive adhesive tape (603), a conductive block (604), an alarm first (605), a conductive sheet first (606), an alarm second (607) and a conductive sheet second (608), wherein the power supply bin (601) is connected to a working box (4), the storage battery (602) is connected to the power supply bin (601), the conductive adhesive tape (603) is embedded on the bottom surface of the working box (4), the conductive adhesive tape (603) is electrically connected with the storage battery (602), the conductive block (604) is connected to a distance measuring strip (501), the conductive block (604) is in sliding connection with the conductive adhesive tape (603), the alarm first (605) and the alarm second (607) are both connected to the working box (4), the conductive sheet first (606) is embedded on the working box (4), the conductive sheet second (608) is embedded on the working box (4), and the alarm first (605) is electrically connected with the conductive sheet first (606) and the conductive sheet second (608) is electrically connected with the conductive sheet second (608).

3. An inter-vessel ranging link as claimed in claim 1, wherein: the fixing device (3) comprises a fixing plate (301), a locking plate (302) and a bolt (303), wherein a sliding groove is formed in the fixing plate (301), one end of the connecting plate (1) is slidably connected in the sliding groove, the locking plate (302) is slidably connected in the sliding groove, the bolt (303) is in threaded connection with the fixing plate (301), and the bolt (303) is rotationally connected with the locking plate (302).

4. An inter-vessel ranging link as claimed in claim 1, wherein: the distance measuring device (5) further comprises two telescopic rods (502), one end of each telescopic rod (502) is connected with the fixing device (3), the other end of each telescopic rod (502) is connected with the outer wall of the working box (4), and the two telescopic rods (502) are arranged in a gear (505) center-to-center symmetry mode.

5. An inter-vessel ranging link as claimed in claim 1, wherein: the working box (4), the distance measuring strip (501) and the baffle (503) are made of polyimide materials, and sealing rubber strips are connected in through holes, through which the distance measuring strip (501) penetrates, of the working box (4).

6. An inter-vessel ranging link as claimed in claim 2, wherein: the bottom surface of conducting block (604) and the inner wall bottom surface contact of work box (4), the top surface of conducting block (604) and the inner wall top surface contact of work box (4), when conducting block (604) and the side inner wall contact of work box (4), two conducting block (604) respectively with conducting strip one (606), when conducting block (604) and conducting strip (603) contact, two conducting block (604) respectively with two conducting strips two (608).

7. An inter-vessel ranging link as claimed in claim 2, wherein: the first alarm (605), the first conducting strip (606), the second alarm (607) and the second conducting strip (608) are completely covered by the protective cover (7).