A control system for underwater positioning and salvage buoy

Abstract

The present invention discloses an underwater positioning and salvaging buoy control system, which belongs to the technical field of underwater equipment maintenance. It sets a buoy pulled by a rope corresponding to an underwater node, so that the underwater node can be positioned by the buoy standard when it needs to be salvaged, and then sets a fixing device and / or a reinforcement device corresponding to the rope, so that the buoy can be reliably fixed on the bottom of the water when the underwater node works normally. The buoy can be released and floated to the water surface when the underwater node needs to be positioned, avoiding the defects of the buoy being lost, interfering with the navigation, exposing the equipment position, etc. caused by the buoy being set on the water surface, while fully ensuring the reliability and accuracy of the buoy setting. The underwater positioning and salvaging buoy control system of the present invention has a simple structure and accurate control, and can set a buoy for the corresponding underwater node, providing guarantee for the positioning, inspection and maintenance of the underwater node, and has good application prospects and promotion value.

Description

Technical Field

[0001] The invention belongs to the technical field of underwater equipment maintenance, and in particular relates to an underwater positioning and salvaging buoy control system. Background Art

[0002] With the continuous advancement of the national marine strategy and the continuous development of marine science and technology, the pace of large-scale construction of cable-based underwater information observation systems / observation networks is gradually accelerating.

[0003] Normally, the cable-based underwater information observation system uses submarine cables as a link underwater, and sets up a large number of underwater nodes or underwater equipment underwater. Submarine cables are used to connect a large number of underwater nodes or equipment to complete the corresponding underwater information detection work. Since the setting environment of the cable-based underwater information observation system is underwater, its working environment is relatively harsh and is greatly affected by the environment. Therefore, during the setting and application of the system, it is often necessary to regularly maintain and inspect the underwater nodes or underwater equipment. However, since the location of underwater nodes or underwater equipment is often below the vast sea level, it is difficult to locate and salvage, inspect, and maintain them, resulting in high maintenance costs.

[0004] In order to solve the above problems, in the prior art, technicians choose to set buoys for the corresponding underwater nodes, and use the buoys to locate the underwater nodes, thereby guiding the subsequent positioning and maintenance work. The above method can improve the positioning efficiency of underwater nodes / equipment to a certain extent, and can reduce the maintenance workload of underwater nodes / equipment to a certain extent. However, the buoys set for underwater nodes often float on the water surface, and long-term floating not only exposes the location of the equipment / nodes, but also poses the risk of the buoy being washed off and lost by waves. At the same time, since there are often many underwater nodes, the buoys are relatively densely arranged, which will also bring certain safety hazards to the navigation of passing ships. Summary of the invention

[0005] In response to one or more of the above-mentioned defects or improvement needs of the prior art, the present invention provides an underwater positioning and salvage buoy control system, which can set buoys for underwater nodes, and enable the buoys to sink to the bottom of the water when the underwater nodes are working normally, and float to the surface for positioning when the underwater nodes need to be salvaged, thereby ensuring the accuracy and reliability of the buoy setting and fully ensuring the safety of navigation in the surface space.

[0006] To achieve the above object, the present invention provides an underwater positioning and salvage buoy control system.

[0007] It includes a buoy arranged corresponding to the underwater node, the buoy is connected to the underwater node through a rope, and is used to locate the setting position of the underwater node; and

[0008] A fixing device and / or a reinforcing device is provided at the bottom of the water corresponding to the rope; the fixing device and / or the reinforcing device can match the end of the rope close to the buoy when working, so as to fix the corresponding buoy at the bottom of the water when the underwater node is working; and the fixing device and / or the reinforcing device can release the limit of the rope when the underwater node needs to be positioned, so that the buoy can float up by pulling the rope under the action of its buoyancy;

[0009] The length of the rope is not less than the distance between the underwater node and the horizontal plane, so that the buoy can float from the bottom of the water to the surface of the water when the rope is unfastened.

[0010] As a further improvement of the present invention, the fixing device includes an electromagnet and a magnetic attraction block;

[0011] The electromagnet is fixed corresponding to the underwater node, and a magnetic circuit that can be turned on and off is provided corresponding to it; the magnetic block is connected to the end of the rope close to the buoy through an auxiliary pull rope, and it can be adsorbed on the electromagnet and fix the buoy to the bottom of the water when the electromagnet is energized.

[0012] As a further improvement of the present invention, a controlled normally closed switch is provided in the magnetic attraction circuit, which is in a closed state when the underwater node is working and can be opened when the underwater node needs to be located; and

[0013] The magnetic attraction circuit is connected to the submarine cable, so that the submarine cable can be used for continuous power supply of the magnetic attraction circuit.

[0014] As a further improvement of the present invention, a rechargeable battery is also provided in the magnetic attraction circuit, which can be charged by the submarine cable and supply power to the electromagnet when the submarine cable is powered off.

[0015] As a further improvement of the present invention, the reinforcement device is a clamping structure, which includes a bottom plate and a pressure plate hingedly arranged with each other;

[0016] A first electromagnet is disposed on the bottom plate and / or on one side of the bottom plate, and the first electromagnet can generate an electromagnetic force to adsorb the pressing plate after being energized, so that the pressing plate is closely adsorbed on the surface of the bottom plate, so as to clamp the rope between the two plates; and

[0017] An elastic member is arranged between the bottom plate and the pressing plate, so that the pressing plate can be driven by the elastic member to a position away from the bottom plate when the first electromagnet is powered off.

[0018] As a further improvement of the present invention, an anti-slip stopper is provided on the outer periphery of one end of the rope close to the buoy; and when the bottom plate and the pressure plate clamp the rope, the anti-slip stopper is located on the side of the two plates away from the buoy.

[0019] As a further improvement of the present invention, the reinforcement device comprises a housing, a first pressure rod and a second pressure rod, wherein the first pressure rod is connected to an end of the rope close to the buoy through an auxiliary pull rope;

[0020] The bottom of the housing is fixed corresponding to the underwater node, a through hole is opened on one end surface thereof, and guide grooves are arranged on both sides of the through hole, and the two ends of the second pressure rod are embedded in the two guide grooves and can reciprocate in the two guide grooves;

[0021] A limiting groove is provided on the inner wall surface of the shell and on one side of the second press rod corresponding to the first press rod, and an elastic pressure piece is provided in the shell; one end of the elastic pressure piece abuts against the inner wall of the shell, and the other end abuts against the outer periphery of the first press rod, so that the two ends of the first press rod are respectively embedded in the corresponding limiting grooves; and

[0022] A second electromagnet is arranged in the housing and is connected to the second pressure rod through a linkage traction rope. After power failure, the second pressure rod can be pulled away from the first pressure rod to move, thereby releasing the limit of the second pressure rod on one end of the first pressure rod.

[0023] As a further improvement of the present invention, a slide buckle is provided on the bottom surface of the shell below the second pressure rod; one end of the linkage traction rope is connected to the second pressure rod, and the other end passes through the slide buckle and is connected to the pulling member in the second electromagnet.

[0024] As a further improvement of the present invention, the reinforcement device includes a body fixed to the bottom of the water and a third electromagnet;

[0025] A blind hole is provided on the bottom surface of the body, and a tension spring and a sliding block are arranged in the blind hole; one end of the tension spring is fixed to the bottom of the blind hole, and the other end is connected to the sliding block; the third electromagnet is arranged corresponding to the sliding block, and can attract the sliding block after power is turned on and make the tension spring in a stretched state;

[0026] A locking hole is provided on the top surface of the body, the locking hole is horizontally connected with the blind hole, and a locking ball is arranged in the through hole; accordingly, a receiving hole is provided on one side of the sliding block close to the locking hole corresponding to the locking ball, and the receiving hole can be directly opposite to the through hole after the tension spring is restored from the stretched state;

[0027] A locking piece is coaxially arranged in the locking hole, one end of which is embedded in the locking hole, and the other end is connected to the end of the rope close to the buoy through an auxiliary pull rope; and a locking groove is provided on the side of the locking piece facing the through hole, so that when one side of the locking ball abuts against the surface of the sliding block, the other side of the locking ball can be locked and limited in the locking groove.

[0028] As a further improvement of the present invention, the locking piece is replaced by an auxiliary pull rope having a rope connected to one end and a limiting ball provided at the other end; the locking ball can press the auxiliary pull rope tightly when the third electromagnet is energized, and release the limiting of the auxiliary pull rope when the third electromagnet is de-energized.

[0029] The above-mentioned improved technical features can be combined with each other as long as they do not conflict with each other.

[0030] In general, compared with the prior art, the above technical solution conceived by the present invention has the following beneficial effects:

[0031] (1) The underwater positioning and salvaging buoy control system of the present invention sets buoys pulled by ropes at corresponding underwater nodes, so that the underwater nodes can be positioned by the buoys when they need to be salvaged, and then sets fixing devices and / or reinforcement devices at corresponding ropes, so that the buoys can be reliably fixed to the bottom of the water when the underwater nodes are working normally, thereby avoiding the problems of underwater node location exposure, interference with ship navigation, and buoy loss caused by the floating setting of the buoys. While ensuring the positioning of the underwater nodes, the reliability and stability of the buoy setting are improved, and the impact of the buoy setting on the water surface traffic environment is reduced, thereby ensuring the landscape of the water surface.

[0032] (2) The underwater positioning and salvage buoy control system of the present invention is provided with a fixing device composed of an electromagnet, a magnetic block, a magnetic circuit, a controlled normally closed switch and other components, and then uses a submarine cable to power the magnetic circuit, which effectively ensures the reliability and accuracy of the fixing device and realizes the reliable fixation of the buoy and the rope on the bottom of the water; and through the corresponding setting of the rechargeable battery in the magnetic circuit, the fixing device can further work stably for a period of time after the power of the submarine cable is cut off, fully ensuring the reliability and stability of the buoy sinking setting.

[0033] (3) The underwater positioning and salvage buoy control system of the present invention can fully ensure the reliable fixation of the buoy on the bottom of the water through the corresponding arrangement of different forms of reinforcement devices and the combined use of the reinforcement devices and the fixing devices, so as to meet the application requirements in different water conditions and fully ensure the reliability and stability of the buoy positioning component setting. In addition, each reinforcement device can make full use of the cables laid on the bottom of the water in actual application, without the need to set up an additional power supply system, thereby fully ensuring the accuracy of the system operation.

[0034] (4) The underwater positioning and salvage buoy control system of the present invention can fully ensure the reliability of the underwater setting of the rope by winding the untensioned end of the rope and fixing it to the bottom of the water, utilizing the corresponding setting of the weak link component, thereby avoiding the knotting and entanglement of the rope, and further ensuring the floating accuracy when the buoy is unlocked.

[0035] (5) The underwater positioning and salvage buoy control system of the present invention has a simple structure and accurate control. It can set buoys corresponding to underwater nodes and fix the buoys on the bottom of the water when the underwater nodes are working normally. The buoys can be released and floated to the surface when the underwater nodes need to be positioned. This avoids defects such as loss of buoys, interference with navigation, and exposure of equipment locations caused by setting the buoys on the water surface. At the same time, it fully guarantees the reliability and accuracy of the buoy setting, provides guarantees for the positioning, inspection, and maintenance of underwater nodes, and has good application prospects and promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 2 is a schematic diagram of the structure of an underwater positioning and salvage buoy control system according to an embodiment of the present invention;

[0037] Figure 2 2 is a schematic diagram of a system structure in which a reinforcement device is provided for a buoy rope in an embodiment of the present invention;

[0038] Figure 3 is a schematic structural diagram of a reinforcement device in Embodiment 1 of the present invention;

[0039] Figure 4 is a schematic structural diagram of a reinforcement device in Embodiment 2 of the present invention;

[0040] Figure 5 is a schematic structural diagram of a reinforcement device in Embodiment 3 of the present invention;

[0041] In all the drawings, the same reference numerals represent the same technical features, specifically:

[0042] 1. Buoy; 2. Rope; 3. Magnetic block; 4. Electromagnet; 5. Magnetic circuit; 6. Reinforcement device; 7. Auxiliary pull rope;

[0043] 501, controlled normally closed switch; 502, rechargeable battery; 601, pressure plate; 602, bottom plate; 603, elastic member; 604, anti-slip stop bolt; 605, housing; 606, elastic pressure member; 607, first pressure rod; 608, second pressure rod; 609, linkage traction rope; 610, second electromagnet; 611, slide buckle; 612, body; 613, third electromagnet; 614, sliding block; 615, tension spring; 616, locking ball. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0045] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0046] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0047] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0048] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0049] Example:

[0050] See also Figure 1 to Figure 5The underwater positioning and salvaging buoy control system in the preferred embodiment of the present invention includes a buoy 1 set corresponding to the underwater node, which is positioned and connected to the underwater node through a rope 2, and is used to locate the position of the underwater node when floating on the horizontal plane. At the same time, a fixing device is set underwater corresponding to the buoy 1 in the preferred embodiment, which is used to tow and fix the buoy 1 near the underwater node at the bottom of the water when the underwater node is working, and the fixing device can controllably release the limitation of the buoy 1 when the underwater node needs to be inspected, maintained, or salvaged, so that the buoy 1 can float on the water surface for positioning, and the setting of the rope 2 can also be further preferably used for auxiliary salvage of the underwater node.

[0051] Specifically, the fixing device in the preferred embodiment is as follows Figure 1 The electromagnetic magnetic attraction assembly shown in the figure includes an electromagnet 4 arranged on or near an underwater node, and a magnetic attraction block 3 is connected to the end of the rope 2 close to the buoy 1. The magnetic attraction block 3 is preferably connected to the rope 2 with an auxiliary pull rope 7, and the connection point between the two is close to the buoy 1.

[0052] Correspondingly, a magnetic attraction circuit 5 is provided corresponding to the electromagnet 4 for supplying power to the electromagnet 4. In a preferred embodiment, the magnetic attraction circuit 5 is provided in the form of: Figure 1 As shown in the figure, it is preferably connected to two submarine cables so that the submarine cables can power the electromagnet 4 in the magnetic circuit 5, so that the magnetic block 3 can be adsorbed on the electromagnet 4 accordingly. At this time, the buoy 1 is fixed to the bottom of the water close to the underwater node by the auxiliary pull rope 7, and the buoy 1 does not float out of the horizontal plane, thereby realizing the hidden design of the buoy 1.

[0053] Furthermore, a controlled normally closed switch 501 is provided on the magnetic circuit 5, which is always in a closed state when the underwater node is working normally, so as to ensure that the magnetic circuit 5 can continuously supply power to the electromagnet 4 and ensure that the buoy 1 is reliably pulled to the bottom of the water. When the buoy 1 needs to be used for positioning, for example, when the underwater node needs to be located and salvaged, the controlled normally closed switch 501 can be controlled to open on the shore or on the ship, so that the magnetic circuit 5 is in an open circuit state, at which time the electromagnet 4 stops working, and the buoy 1 floats to the surface under the action of buoyancy.

[0054] Obviously, for the above-mentioned fixing device, it is necessary to ensure that the gravity of the magnetic block 3 is less than the buoyancy of the buoy 1, so that after the magnetic block 3 is released from magnetic attraction, the buoy 1 can float to the surface by its buoyancy to overcome the gravity of the magnetic block 3 and the rope 2. In addition, it is obvious that the length of the rope 2 should not be less than the distance between the horizontal plane and the corresponding underwater node, so as to ensure that the buoy 1 can accurately float to the surface and complete positioning.

[0055] In addition, when the buoy 1 is limited to the bottom of the water by the electromagnetic magnetic attraction component, the untensioned length of the rope 2 (i.e., the length between the connection point of the auxiliary pull rope 7 and the underwater node) is preferably coiled on the bottom of the water, and a weak lock component is provided corresponding to the coiled rope 2, which can reliably bind the coiled rope 2 and be quickly torn under the buoyancy of the buoy 1, thereby avoiding the entanglement and knotting of the rope 2 on the bottom of the water and ensuring the accuracy of the floating operation of the buoy 1. In actual settings, it is also preferred to fix the coiled rope 2 to the underwater node by weak adhesive bonding or weak lock locking, such as Figures 3 to 5 as shown in .

[0056] Preferably, a rechargeable battery 502 is also provided on the magnetic circuit 5, which can supply power to the magnetic circuit 5 after the power of the submarine cable is cut off, so as to ensure the reliability of the operation of the magnetic circuit 5, so that when the submarine cable fails or is under emergency maintenance, the buoy 1 can still be accurately positioned at the bottom of the water. Accordingly, the submarine cable connected to the magnetic circuit 5 can also charge the rechargeable battery 502 (floating charge), so as to fully ensure the reliability and accuracy of the operation of the electromagnetic magnetic component.

[0057] In actual settings, the controlled normally closed switch 501 and the rechargeable battery 502 can be set in an underwater electronic compartment, and the corresponding relays can be encapsulated in a metal or plastic shell, which can fully ensure the reliability of the underwater setting and operation of each component, and the components in the magnetic attraction circuit 5 are preferably connected by a watertight cable, which can fully ensure the reliability of the setting and operation of the magnetic attraction circuit 5.

[0058] Furthermore, the above system can be set up in an application environment with slow water flow and good water conditions, and the reliability and stability of the system after setting up can be fully guaranteed. However, in complex water conditions, due to the influence of factors such as water flow and the activities of large fish, the buoy 1 may be at risk of accidentally detaching from the fixation and floating to the surface. At this time, it is necessary to further strengthen the fixation of the rope 2. In this regard, in a preferred embodiment, a reinforcement device 6 is further provided for the underwater limit fixation of the buoy 1, which is used to reinforce the limit of the rope 2, such as Figure 2 as shown in .

[0059] Specifically, in a specific embodiment 1, the reinforcement device 6a is as follows Figure 3 The clamping reinforcement device shown in the figure includes a bottom plate 602 and a pressure plate 601. One side of the two plates is hinged, and an elastic member 603 is arranged between the two plates, so that the pressure plate 601 can be bounced up by the elastic member 603 without being affected by external force, causing the plate surfaces of the two plates to separate from each other.

[0060] At the same time, a first electromagnet is arranged on the bottom plate 602 or the pressing plate 601. The first electromagnet can also be fixedly arranged on one side of the bottom plate 602, and the end of the pressing plate 601 extends out of the edge of the bottom plate 602 and can be magnetically attracted to the first electromagnet. Figure 3 Through the magnetic attraction control of the first electromagnet, the bottom plate 602 and the pressing plate 601 can be closely attached to each other at the end faces, thereby clamping the rope 2 between the two plates, as shown in FIG. Figure 3 Shown in the enlarged part.

[0061] Preferably, corresponding to the positioning of the rope 2 between the two plates, a limiting groove is preferably provided on the end surface of the bottom plate 602 and / or the pressure plate 601, so that the rope 2 can be inserted into the limiting groove and pressed and fixed. Further preferably, an anti-slip stopper 604 is provided on the outer periphery of the rope 2, so that when the two plates clamp the rope 2, the anti-slip stopper 604 is just stuck on the side of the two plates away from the buoy 1, and the sliding of the rope 2 is limited in turn, so as to prevent the rope 2 from sliding and causing the buoy to float up.

[0062] In addition, the first electromagnet in the preferred embodiment can be connected to the magnetic attraction circuit 5, or a power supply circuit similar to the aforementioned magnetic attraction circuit 5 can be separately provided to ensure the reliable operation of the reinforcement device 6. When the first electromagnet is working, the pressure plate 601 is accurately adsorbed on the bottom plate 602. At this time, the end of the rope 2 close to the buoy 1 can be accurately limited, so that the buoy 1 sinks to the bottom of the water. When the first electromagnet is released from working, the pressure plate 601 can release the clamping of the rope 2 under the action of the elastic member 603, and then the buoy 1 can float to the surface of the water.

[0063] In another specific embodiment 2, the reinforcement device 6b is as follows Figure 4 As shown in , at this time, it includes a box-shaped housing 605, which is fixedly arranged corresponding to the underwater node or underwater equipment, and a second electromagnet 610 is arranged at the bottom of the housing 605, and the second electromagnet 610 is matched and connected with the linkage traction rope 609, and can pull the linkage traction rope 609 to move after power failure. For example, a tension spring is arranged in the second electromagnet 610, and the linkage traction rope 609 is connected to the tension spring. When the second electromagnet 610 loses power, the tension of the tension spring is released, and the tension spring pulls the linkage traction rope 609 under the action of the restoring force. This can be achieved with the help of relevant technical means in the prior art, which will not be described in detail here.

[0064] Furthermore, a first pressure bar 607 is provided corresponding to the traction limit of the rope 2, and one end of the rope 2 close to the buoy 1 is connected to the first pressure bar 607 through an auxiliary pull rope 7. Correspondingly, a second pressure bar 608 is provided corresponding to the linkage traction rope 609, and a guide groove is provided in the corresponding second pressure bar 608, and both ends of the second pressure bar 608 are respectively embedded in the guide groove, and can move in the guide groove under the pulling of the linkage traction rope 609.

[0065] like Figure 4 As shown in the enlarged part in the figure, in the preferred embodiment, a through hole is opened on one side of the housing 605, and the guide grooves of the second pressure rod 608 are arranged on both sides of the through hole. Accordingly, a limiting groove is arranged on the inner peripheral wall surface of the housing 605 on the side where the through hole is opened and on the side of the second pressure rod 608 corresponding to the first pressure rod 607, and an elastic pressure member 606 is arranged in the housing 605.

[0066] In actual configuration, the elastic pressure member 606 may further preferably be a compression spring, one end of which is fixed to the inner wall surface of the housing 605 facing the opening, and the other end is pressed against the outer periphery of the first pressure rod 607, so that the two ends of the first pressure rod 607 are respectively pressed against the inner wall surface of the housing 605 and the outer peripheral wall surface of the second pressure rod 608. At this time, the two ends of the first pressure rod 607 are further preferably embedded in the corresponding limiting grooves to prevent the first pressure rod 607 from moving horizontally.

[0067] By correspondingly pressing the first pressure rod 607 on the outer shell 605, the corresponding fixation of the auxiliary pull rope 7 can be achieved. When the second electromagnet 610 loses power, the linked traction rope 609 can be pulled accordingly, and then the second pressure rod 608 can be pulled away from the first pressure rod 607, so that one end of the first pressure rod 607 loses its limit, and the elastic pressure piece 606 can no longer maintain the state of pressing the first pressure rod 607. The first pressure rod 607 completes the fall off on the outer shell 605, thereby releasing the lock on the buoy 1. Under the action of the buoyancy of the buoy 1, the rope 2, the auxiliary pull rope 7, and the first pressure rod 607 are driven to float to the water surface.

[0068] In more detail, in actual setting, a slider 611 is provided at the bottom of the shell 605 corresponding to the linkage traction rope 609, and it is preferably provided below the second pressure rod 607. One end of the linkage traction rope 609 passes through the slider 611 and matches the tension spring on the second electromagnet 610. Such a setting can ensure that the direction of the force applied by the linkage traction rope 609 on the second pressure rod 608 is always parallel to the axial direction of the guide groove, thereby ensuring the accuracy of pulling the second pressure rod 608 and preventing the second pressure rod 608 from being tightened on the inner wall surface of the guide groove and unable to separate from the first pressure rod 607.

[0069] In a specific embodiment 3, the reinforcement device 6c is as follows Figure 5 As shown in , it includes a block-shaped body 612, which is fixed to an underwater node or underwater equipment, and is preferably arranged vertically, and a blind hole is opened vertically on one side of its bottom, and a tension spring 615 is connected to the bottom of the blind hole, one end of which is fixed to the bottom of the blind hole, and the other end is fixed to a sliding block 614 that can slide back and forth in the blind hole. Correspondingly, a third electromagnet 613 is arranged corresponding to the sliding block 614, which can absorb the sliding block 614 and stretch the tension spring 615 to an extended state after power is turned on.

[0070] Furthermore, a locking hole is provided on the top surface of the body 612, and the locking hole may be a blind hole or a Figure 5 The through hole shown in the enlarged part has one side of the locking hole in transverse communication with the blind hole provided with the sliding block 614, and a locking ball 616 is provided in the transversely connected through hole.

[0071] Correspondingly, a locking piece with a locking groove on one side is provided in the locking hole, and a accommodating hole is provided on the side of the sliding block 614 close to the locking hole. The accommodating hole can be away from the through hole when the sliding block 614 adsorbs the third electromagnet 613, so that the two sides of the locking ball 616 can respectively press against the outer wall of the sliding block 614 and the inner wall of the locking groove, thereby locking the locking piece in the locking hole.

[0072] Correspondingly, one end of the rope 2 close to the buoy 1 is connected to the locking member through the auxiliary pull rope 7. When the third electromagnet 613 is energized to adsorb the sliding block 614, the locking member is locked in the locking hole by the locking ball 616. When the third electromagnet 613 loses power, the adsorption of the sliding block 614 is released, and the sliding block 614 moves under the pull of the tension spring 615, so that the accommodating hole is directly opposite to the locking ball 616. Thereafter, one side of the locking ball 616 is embedded in the accommodating hole, and the locking member is released. Under the buoyancy of the buoy 1, the locking member is pulled out of the locking hole, and the buoy 1 floats up.

[0073] Of course, in actual setting, one end of the auxiliary drawstring 7 can also be directly inserted into the locking hole, and the locking ball 616 can be directly pressed against the inner wall of the locking hole. In order to prevent the auxiliary drawstring 7 from sliding, a stopper that can be embedded in the locking hole can be set at the end of the auxiliary drawstring 7 away from the buoy 1, such as a stopper ball. When the locking ball 616 presses against the end of the auxiliary drawstring 7, the stopper ball just abuts against the outer peripheral wall of the locking ball 616 away from the buoy 1 to achieve the limit.

[0074] In practical applications, the reinforcement device 6 can be used in conjunction with the aforementioned fixing device, so that the fixing of the rope 2 can have a "double insurance" limit, and the buoy 1 can be limited at the corresponding position on the bottom of the water by both. However, according to actual needs, the reinforcement device 6 can also be used to replace the aforementioned fixing device to limit the rope 2 and the buoy 1, which can be optimized according to actual conditions.

[0075] The underwater positioning and salvage buoy control system of the present invention has a simple structure and accurate control. It can set buoys corresponding to underwater nodes and limit and fix the buoys on the water bottom when the underwater nodes are working normally. The buoys can be released and float to the water surface when the underwater nodes need to be positioned. This avoids defects such as loss of buoys, interference with navigation, and exposure of equipment locations caused by setting the buoys on the water surface, while fully ensuring the reliability and accuracy of the buoy settings, providing guarantees for the positioning, inspection, and maintenance of underwater nodes. It has good application prospects and promotion value.

[0076] It will be easily understood by those skilled in the art that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An underwater positioning and salvage buoy control system, characterized in that: It includes a buoy arranged corresponding to the underwater node, the buoy is connected to the underwater node through a rope, and is used to locate the setting position of the underwater node; and A fixing device and a reinforcement device are provided at the bottom of the water corresponding to the rope; the fixing device and the reinforcement device can match the end of the rope close to the buoy when working, so as to fix the corresponding buoy at the bottom of the water when the underwater node is working; and the fixing device and / or the reinforcement device can release the limit of the rope when the underwater node needs to be positioned, so that the buoy can float up by pulling the rope under the action of its buoyancy; The fixing device includes an electromagnet and a magnetic block; the electromagnet is fixed corresponding to the underwater node, and a magnetic circuit that can be turned on and off is provided corresponding to the electromagnet; the magnetic block is connected to the end of the rope close to the buoy through an auxiliary pull rope, and can be adsorbed on the electromagnet when the electromagnet is energized and fix the buoy to the bottom of the water; The reinforcement device includes an outer shell, a first pressure rod and a second pressure rod, the first pressure rod is connected to one end of the rope close to the buoy through an auxiliary pull rope; the bottom of the outer shell is fixed corresponding to the underwater node, a through hole is opened on one end surface thereof, and guide grooves are arranged on both sides of the through hole, and the two ends of the second pressure rod are embedded in the two guide grooves and can reciprocate in the two guide grooves; corresponding to the first pressure rod, a limiting groove is arranged on the inner wall surface of the outer shell and on one side of the second pressure rod, and an elastic pressure piece is arranged in the outer shell; one end of the elastic pressure piece abuts against the inner wall of the outer shell, and the other end abuts against the outer periphery of the first pressure rod, so that the two ends of the first pressure rod are respectively embedded in the corresponding limiting grooves; and A second electromagnet is arranged in the housing, which is connected to the second pressure rod through a linkage traction rope, and can pull the second pressure rod away from the first pressure rod after power failure, so as to release the second pressure rod from limiting one end of the first pressure rod; The length of the rope is not less than the distance between the underwater node and the horizontal plane, so that the buoy can float from the bottom of the water to the surface when the rope is unfastened; and when the buoy is restrained at the bottom of the water by the electromagnetic magnetic attraction component, the untensioned length of the rope is coiled at the bottom of the water; A weak lock component is provided corresponding to the coiled rope, which can reliably bind the coiled rope and be quickly pulled apart under the buoyancy of the buoy; alternatively, the coiled rope is fixed to the underwater node by weak adhesive bonding or weak lock.

2. The underwater positioning and salvage buoy control system according to claim 1, wherein: The magnetic attraction circuit is provided with a controlled normally closed switch, which is in a closed state when the underwater node is working and can be opened when the underwater node needs to be located; and The magnetic attraction circuit is connected to the submarine cable, so that the submarine cable can be used for continuous power supply of the magnetic attraction circuit.

3. The underwater positioning and salvage buoy control system according to claim 2, wherein: The magnetic attraction circuit is also provided with a rechargeable battery, which can be charged by the submarine cable and supply power to the electromagnet when the submarine cable is powered off.

4. The underwater positioning and salvage buoy control system according to any one of claims 1 to 3, wherein: A slide buckle is arranged on the bottom surface of the shell below the second pressure rod; one end of the linkage traction rope is connected to the second pressure rod, and the other end passes through the slide buckle and is connected to the pulling member in the second electromagnet.

5. An underwater positioning and salvage buoy control system, characterized in that: It includes a buoy arranged corresponding to the underwater node, the buoy is connected to the underwater node through a rope, and is used to locate the setting position of the underwater node; and A fixing device and a reinforcement device are provided at the bottom of the water corresponding to the rope; the fixing device and the reinforcement device can match the end of the rope close to the buoy when working, so as to fix the corresponding buoy at the bottom of the water when the underwater node is working; and the fixing device and / or the reinforcement device can release the limit of the rope when the underwater node needs to be positioned, so that the buoy can float up by pulling the rope under the action of its buoyancy; The fixing device includes an electromagnet and a magnetic block; the electromagnet is fixed corresponding to the underwater node, and a magnetic circuit that can be turned on and off is provided corresponding to the electromagnet; the magnetic block is connected to the end of the rope close to the buoy through an auxiliary pull rope, and can be adsorbed on the electromagnet when the electromagnet is energized and fix the buoy to the bottom of the water; The reinforcement device includes a body fixed to the bottom of the water and a third electromagnet; A blind hole is provided on the bottom surface of the body, and a tension spring and a sliding block are arranged in the blind hole; one end of the tension spring is fixed to the bottom of the blind hole, and the other end is connected to the sliding block; the third electromagnet is arranged corresponding to the sliding block, and can attract the sliding block after power is turned on and make the tension spring in a stretched state; A locking hole is provided on the top surface of the body, the locking hole is horizontally connected with the blind hole, and a locking ball is arranged in the through hole; accordingly, a receiving hole is provided on one side of the sliding block close to the locking hole corresponding to the locking ball, and the receiving hole can be directly opposite to the through hole after the tension spring is restored from the stretched state; A locking piece is coaxially arranged in the locking hole, one end of which is embedded in the locking hole, and the other end is connected to the end of the rope close to the buoy through an auxiliary pull rope; and a locking groove is provided on the side of the locking piece facing the through hole, so that when one side of the locking ball abuts against the surface of the sliding block, the other side of the locking ball can be locked and limited in the locking groove; The length of the rope is not less than the distance between the underwater node and the horizontal plane, so that the buoy can float from the bottom of the water to the surface when the rope is unfastened; and when the buoy is restrained at the bottom of the water by the electromagnetic magnetic attraction component, the untensioned length of the rope is coiled at the bottom of the water; A weak lock component is provided corresponding to the coiled rope, which can reliably bind the coiled rope and be quickly pulled apart under the buoyancy of the buoy; alternatively, the coiled rope is fixed to the underwater node by weak adhesive bonding or weak lock.

6. The underwater positioning and salvage buoy control system according to claim 5, wherein: The magnetic attraction circuit is provided with a controlled normally closed switch, which is in a closed state when the underwater node is working and can be opened when the underwater node needs to be located; and The magnetic attraction circuit is connected to the submarine cable, so that the submarine cable can be used for continuous power supply of the magnetic attraction circuit.

7. The underwater positioning and salvage buoy control system according to claim 6, wherein: The magnetic attraction circuit is also provided with a rechargeable battery, which can be charged by the submarine cable and supply power to the electromagnet when the submarine cable is powered off.

8. The underwater positioning and salvage buoy control system according to any one of claims 5 to 7, wherein: The locking piece is replaced by an auxiliary pull rope with a rope connected to one end and a limiting ball arranged at the other end; the locking ball can press the auxiliary pull rope tightly when the third electromagnet is energized, and release the limiting of the auxiliary pull rope when the third electromagnet is de-energized.

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