Electrocorrosion sealing cavity structure, load rejection device and load rejection system

Abstract

The invention provides an electro-corrosion sealing cavity structure. The structure comprises a cavity, a cathode sealing cover, an anode rod and a first connecting end cover, through holes are formed in the upper side and the side face of the cavity, and the through holes in the side face are used for injecting electro-corrosive liquid into the cavity. The cathode sealing cover is fixedly connected with the cavity and used for sealing the side face through hole, and the cathode sealing cover can make contact with the electro-corrosive liquid in the cavity. And one end of the anode rod penetrates through the through hole in the upper side, and the other end of the anode rod is fixedly connected with the lower side of the cavity. And the first connecting end cover seals the upper side through hole in a manner of abutting against the cavity, and is fixedly connected with the anode rod. When the power supply starts to supply power, the electro-corrosion zone of the anode rod is corroded by the electro-corrosion liquid, and after the electro-corrosion zone is fractured by electro-corrosion, the first connecting end cover is separated from the cavity. The structure is low in complexity and small in size, standby zero power consumption can be achieved, and the working time of the unmanned underwater vehicle is prolonged.

Description

Technical Field

[0001] This application relates to the field of underwater operation technology, and in particular to an electro-corrosion sealing cavity structure, a ballast ejection device, and a ballast ejection system. Background Technology

[0002] Underwater unmanned vehicles (UAVs) have been widely used in various fields, such as ocean exploration, resource exploration, and military reconnaissance. However, due to the complexity and uncertainty of the underwater environment, UAVs may encounter various emergencies during missions, such as motor failure or battery depletion. In severe cases, these UAVs may be unable to surface, resulting in significant economic and data losses.

[0003] Currently, most ballast jettisoning devices use a single power supply. When the vehicle's power supply fails, the jettisoning device also fails, preventing jettisoning. Existing underwater jettisoning devices mostly use electromagnets for jettisoning control. Ballast blocks are directly or indirectly attached to the electromagnet, and jettisoning is achieved by controlling the electromagnet's magnetism. Because the electromagnet is constantly energized after the jettisoning device is powered on, the static power is relatively large, increasing the power load on the underwater vehicle. Motor-driven jettisoning devices often use large stepper motors to drive the jettisoning mechanism, resulting in a large device size and significantly increasing the difficulty of installation on the underwater vehicle. Under various media conditions such as strong currents, fresh water, or deep sea, existing sacrificial anode corrosion jettisoning devices are affected by environmental factors, leading to uncontrollable jettisoning time, failure to jettison on time, or even failure to complete jettisoning. Summary of the Invention

[0004] The embodiments of this application provide an electro-corrosion sealing cavity structure, a ejection device, and an ejection system, which solve the problems of existing ejection devices being prone to power failure, high power load, large size, high installation difficulty, and inability to meet safe and reliable ejection under multi-media conditions (air, fresh water, seawater, etc.).

[0005] In a first aspect, this application provides an electro-corrosion sealing cavity structure, comprising a cavity, a cathode sealing cap, an anode rod, and a first connecting end cap. The cavity has an upper through-hole and a side through-hole, the side through-hole being used to inject an electro-corrosion liquid into the cavity. The cathode sealing cap is fixedly connected to the cavity and seals the side through-hole. The cathode sealing cap is configured to contact the electro-corrosion liquid within the cavity. The anode rod has corrosion-resistant zones at both ends and an electro-corrosion zone in the middle, with one end passing through the upper through-hole and the other end fixedly connected to the lower side of the cavity. The first connecting end cap seals the upper through-hole by abutting against the cavity and is fixedly connected to the anode rod. The cathode sealing cap is electrically connected to the cathode of a power source, and the anode rod is electrically connected to the anode of a power source. When the power is turned on and power is supplied, the electro-corrosion liquid corrodes the electro-corrosion zone of the anode rod. After the anode rod breaks due to electro-corrosion, the first connecting end cap separates from the cavity.

[0006] In another possible implementation, the electro-corrosion sealing cavity structure also includes a second connecting end cap, and a lower through hole is provided at the lower end of the cavity. The second connecting end cap seals the lower through hole by abutting against the cavity and is fixedly connected to the anode rod.

[0007] In another possible implementation, the anode rod is made of stainless steel, and the cathode sealing cap is made of any one of titanium alloy, platinum alloy, boron-doped diamond, iridium alloy, or iridium oxide.

[0008] In a second aspect, a load-release device is provided, comprising the electro-corrosion sealed cavity structure described in the first aspect.

[0009] In another possible implementation, the load-bearing device further includes a mounting base plate, a first mounting lever, a second mounting lever, and a mounting rod. The mounting base plate is placed horizontally to support the weight. The mounting base plate is fixedly connected to the bottom of the electro-corrosion sealing cavity structure. The first mounting lever includes a first end and a second end. The first end of the first mounting lever is fixedly connected to a first connecting end cap of the electro-corrosion sealing cavity structure, and the second end of the first mounting lever is fixedly connected to the mounting base plate via a pivot. The second mounting lever also includes a first end and a second end, both of which are fixedly connected to the mounting base plate. The second end of the second mounting lever, combined with the second end of the first mounting lever, forms a limiting groove. The mounting rod includes a first end and a second end. The first end of the mounting rod is fixed to the weight, and the second end of the mounting rod is configured as a limiting block corresponding to the limiting groove. The weight is hung below the mounting base plate through the cooperation of the limiting block and the limiting groove.

[0010] In another possible implementation, the ejection device also includes a U-shaped beam. The U-shaped beam further includes a top plate and a bottom plate, with the top plate fixedly connected to the bottom of the mounting bottom plate and the bottom plate fixedly connected to the bottom of the electro-corrosion sealing cavity structure.

[0011] In another possible implementation, the second end of the second mounting lever is fixedly connected to the mounting base plate via a pivot, and the first end of the second mounting lever is fixedly connected to the mounting base plate via a limit key.

[0012] In another possible implementation, the limiting key is provided with a limiting screw, which fixes the limiting key to the first end of the second mounting lever.

[0013] Thirdly, a ballast ejection system is provided, including the ballast ejection device described in the second aspect.

[0014] In another possible implementation, the load release system also includes a load release relay, a main power supply and a backup power supply, and an automatic power switching module. The load release relay receives a load release signal and connects the circuit based on the signal. The main power supply and the backup power supply power the load release device. The automatic power switching module controls the switching between the main power supply and the backup power supply. The outputs of the main power supply and the backup power supply, the automatic power switching module, the load release relay, and the load release device are connected in series, while the main power supply and the backup power supply are connected in parallel at their inputs. After receiving the load release signal, the load release relay supplies power to the load release device from either the main power supply or the backup power supply, and the load release device performs the load release.

[0015] The electro-corrosion sealing cavity structure provided in this application allows the cathode sealing cover to function as both a cathode and a seal for the side through-holes, reducing the complexity of the cavity structure. An electro-corrosion zone is located in the middle of the anode rod; only this zone needs to be corroded to achieve load release. This configuration effectively reduces the size of the load release device and is applicable to underwater unmanned vehicles of different sizes. Furthermore, electro-corrosion only occurs when the cathode sealing cover and anode rod are energized, thus achieving zero standby power consumption, reducing the load power consumption of the underwater unmanned vehicle, and extending its operating time. Sealing the anode rod and electro-corrosion fluid within the cavity ensures that the electro-corrosion process is unaffected by external electrolytes, allowing for safe and reliable load release under multi-medium conditions (air, fresh water, seawater, etc.) and adapting to most underwater working environments. Attached Figure Description

[0016] The accompanying drawings used in the description of the embodiments or prior art are briefly introduced below.

[0017] Figure 1 This is a schematic diagram of the disassembly structure of an electro-corrosion sealing cavity provided in an embodiment of this application;

[0018] Figure 2 This is a schematic diagram of another electro-corrosion sealing cavity disassembly structure provided in an embodiment of this application;

[0019] Figure 3 This is a schematic diagram of a load-release device structure provided in an embodiment of this application;

[0020] Figure 4 A schematic diagram of the ejection state of an ejection device provided in an embodiment of this application;

[0021] Figure 5 This is a schematic diagram of another angled load-release device provided in an embodiment of this application;

[0022] Figure 6 This is a schematic diagram of a launch system structure provided in an embodiment of this application. Detailed Implementation

[0023] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0024] In the description of this application, the terms “center,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0025] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection" and "joining" should be interpreted broadly, for example, they can be fixed connections, detachable connections, mating connections or integral connections; those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0026] Figure 1 This is a schematic diagram illustrating the disassembled structure of an electro-corrosion sealing cavity 100 provided in an embodiment of this application. Figure 1 As shown, the electro-corrosion sealing cavity 100 may include a cavity 101, a cathode sealing cover 102, an anode rod 103, and a first connecting end cover 104. The cathode sealing cover 102 is electrically connected to the cathode of the power supply, and the anode rod 103 is electrically connected to the anode of the power supply. When the power supply is turned on and begins to supply power, the electro-corrosion liquid in the cavity 101 begins to corrode the electro-corrosion area of ​​the anode rod 103. When the anode rod 103 is broken by electro-corrosion, the first connecting end cover 104 separates from the cavity 101.

[0027] Specifically, refer to Figure 1 The cavity 101 may be provided with an upper through hole 1011 and a side through hole 1012. The side through hole 1012 is used to inject an electro-corrosion solution into the cavity 101.

[0028] Its cathode sealing cover 102 can be electrically connected to the cathode of the power supply. The cathode sealing cover 102 can be fixed to the cavity 101, specifically at the side through-hole 1012, sealing the side through-hole 1012. Additionally, the cathode sealing cover 102 can come into contact with the electro-corrosion liquid inside the cavity 101. For example, see reference... Figure 1 One end of the cathode sealing cover 102 can be extended to reach into the interior of the cavity 101.

[0029] Its anode rod 103 can be electrically connected to the anode of the power supply. Both ends of the anode rod 103 are configured as anti-electro-corrosion zones 1032. For example, anti-corrosion treatment or electro-ionization treatment is applied to both ends to ensure that they are protected from electro-corrosion by the electro-corrosion solution when energized. The middle part of the anode rod 103 is configured as the electro-corrosion zone 1031. It is worth noting that the electro-corrosion zone 1031 in the middle of the anode rod 103 can only be corroded by the electro-corrosion solution when the anode rod 103 and the cathode sealing cap 102 are energized with the power supply and form a chemical cell with the electro-corrosion solution.

[0030] It is worth noting that the lengths of the anti-electro-corrosion zone 1032 and / or the electro-corrosion zone 1031 can be adjusted according to the actual working environment. For example, in a narrow underwater terrain environment, a smaller cavity 101 size is required to adapt to the underwater working environment, and the lengths of the anti-electro-corrosion zone 1032 and the electro-corrosion zone 1031 can be adjusted according to the size of the cavity 101.

[0031] Specifically, please refer to Figure 1 One end of the anode rod 103 can pass through the upper through hole 1011, and the other end can be fixedly connected to the lower side of the cavity 101. The preferred method of fixing is a threaded connection; for example, the lower end of the anode rod 103 is threaded, and the lower side of the cavity 101 is provided with a corresponding threaded hole, thus fixing the lower side of the cavity 101 to the anode rod 103 through the thread and the threaded hole. Of course, the fixing method can also include welding, riveting, bonding, snap-fitting, etc.

[0032] Furthermore, the first connecting end cap 104 can seal the upper through hole 1011 by abutting against the cavity 101. Specifically, for example, one end of the first connecting end cap 104 is subjected to external force or fixed to a certain position, and the other end abuts against the outside of the upper through hole 1011 of the cavity 101, thereby sealing the upper through hole 1011.

[0033] In addition, the first connecting end cap 104 is also fixedly connected to the anode rod 103. The preferred method of this fixed connection is a threaded connection; for example, the end of the anode rod 103 is threaded, and the first connecting end cap 104 is provided with a corresponding threaded hole, thus fixing the first connecting end cap 104 to the anode rod 103 through the thread and the threaded hole. Of course, other methods of fixed connection may include welding, riveting, bonding, snap-fitting, etc.

[0034] The general process of electro-corrosion in the electro-corrosion sealed cavity 100 is as follows: Electro-corrosion liquid is injected into the cavity 101 through the side through-hole 1012, and then the side through-hole 1012 is sealed by the cathode sealing cap 102. When the power supply is turned on, the cathode sealing cap 102, the electro-corrosion liquid, and the anode rod 103 form a chemical cell within the cavity 101. The electro-corrosion liquid begins to corrode the electro-corrosion zone 1031 of the relatively inert anode rod 103. After the anode rod 103 breaks due to electro-corrosion, the first connecting end cap 104 is separated from the cavity 101 by external force.

[0035] In this embodiment, the cathode sealing cover 102 can serve as both a cathode and a seal for the side through-hole 1012, reducing the complexity of the cavity structure. An electro-corrosion zone 1031 is located in the middle of the anode rod 103. Only by corroding this zone 1031 can the load be ejected. This configuration effectively reduces the size of the ejection device and is applicable to underwater unmanned vehicles of different sizes. Furthermore, electro-corrosion only occurs when the cathode sealing cover 102 and the anode rod 103 are energized. Therefore, this structure achieves zero standby power consumption, reducing the load power consumption of the underwater unmanned vehicle and extending its operating time. Sealing the anode rod and electro-corrosion liquid within the cavity prevents the electro-corrosion process from being affected by external electrolytes, ensuring safe and reliable ejection under multi-medium conditions (air, fresh water, seawater, etc.) and adapting to most underwater working environments.

[0036] In one implementation, reference Figure 2 The lower end of the cavity 101 is also provided with a lower through hole 1013. The electro-corrosion sealing cavity structure 100 also includes a second connecting end cap 105. The second connecting end cap 105 seals the lower through hole 1013 by abutting against the cavity 101. Specifically, for example, one end of the second connecting end cap 105 is subjected to external force or fixed to a certain position, and the other end abuts against the outside of the lower through hole 1013 of the cavity 101, thereby sealing the lower through hole 1013.

[0037] Furthermore, the second connecting end cap 105 is also fixedly connected to the anode rod 103. The preferred method of this fixed connection is a threaded connection; for example, the end of the anode rod 103 is threaded, and the second connecting end cap 105 is provided with a corresponding threaded hole, thus fixing the second connecting end cap 105 to the anode rod 103 through the thread and the threaded hole. Of course, other methods of fixed connection may include welding, riveting, bonding, snap-fitting, etc.

[0038] In this embodiment, by providing a lower through hole 1013 at the lower end of the cavity 101 and fixing it to the anode rod 103 through the second connecting end cap 105, the volume of the cavity 101 can be reduced, thereby further reducing the volume of the electro-corrosion sealing cavity structure 100 and reducing the installation difficulty.

[0039] In one embodiment, the anode rod 103 can be made of stainless steel, and its cathode sealing cover 102 can be made of titanium alloy, platinum alloy, boron-doped diamond, iridium alloy, iridium oxide, etc.

[0040] It is easy to understand that when the jettison device is operating underwater, one side of the cathode sealing cover 102 will be exposed to the water environment. Therefore, a highly inert material can be used to ensure safe and reliable jettison under multi-media conditions (air, fresh water, seawater, etc.) and adapt to most underwater working environments.

[0041] In this embodiment, the material selection of the anode rod 103 and the cathode sealing cover 102 can increase the chemical stability and pressure resistance of the electro-corrosion cavity structure, so that the electro-corrosion cavity structure 100 can meet the conditions of different media and deep-sea use.

[0042] In one embodiment, a sealing ring 106 is further provided between the first connecting end cap 104 and the cavity 101, and between the second connecting end cap 105 and the cavity 101. The sealing ring 106 can better seal the through hole.

[0043] In one specific embodiment, the time for the anode rod 103 to be electro-corroded can be controlled.

[0044] Specifically, the corrosion time t (seconds) can be calculated using the following formula:

[0045]

[0046] In the formula, ρ represents the density of the anode rod 103; d represents the radius of the electro-corrosion zone of the anode rod; F represents the Faraday constant F = 96485 C / mol; EW represents the equivalent weight of the anode rod; j metal This indicates the metal dissolution current density of the anode rod 103.

[0047] Anode rod 103 metal dissolution current density j metal It can be calculated using the following formula:

[0048] j metal =η*j total

[0049] In the formula, the current efficiency η is the proportion of the current used for metal dissolution, and since the sacrificial anode mainly produces chlorine, it is taken as 0.5; j total This represents the total anode current density;

[0050] Total anode current density j total The calculation formula is as follows:

[0051]

[0052] In the formula, V represents the power supply voltage; σ represents the electrolyte conductivity; and l represents the distance between the electrodes.

[0053] Assuming the anode rod 103 is made of 316L stainless steel, its electro-corrosion zone radius d = 0.5 mm, and its density ρ = 8000 kg / m³ 3 Equivalent weight The conductivity of the electro-corrosion solution is σ = 5 S / m (determined by the ratio of the electro-corrosion solution), the electrode spacing is l = 0.5 cm, and the power supply voltage is V = DC 24 V.

[0054] Based on the above parameters, the total anode current density can be determined.

[0055] Furthermore, the metal dissolution current density j of the anode rod 103 total＝ η*j total =0.5 * 24000 = 12000 A / m 2

[0056] Finally, substituting the above parameters, we can obtain the time it takes for the anode rod 103 to be electro-corroded:

[0057]

[0058] In summary, according to the above formula, given the parameters of the anode rod 103, the electrolyte parameters, and the electrode spacing, the electro-corrosion time of the anode rod 103 can be controlled by adjusting the voltage. Furthermore, the conductivity σ of the electro-corrosion solution can be controlled by adjusting the ratio of the solution, thereby further controlling the electro-corrosion time of the anode rod 103.

[0059] This application also provides a ejection device 10, which includes the electro-corrosion sealing cavity structure 100 in any of the above embodiments. Figure 3 This diagram shows a structural schematic of a launch device 10 provided in this embodiment.

[0060] refer to Figure 3The throwing device 10 mainly includes a mounting base plate 201, a first mounting lever 202, a second mounting lever 204, and a mounting rod 205. The mounting base plate 201 can support the first mounting lever 202, the second mounting lever 204, and the mounting rod 205, and can also bear heavy objects. A limiting groove can be formed between the first mounting lever 202 and the second mounting lever 204. One end of the mounting rod 205 is provided with a corresponding limiting block, and the other end is fixedly connected to the heavy object 212. After the anode rod 103 in the electro-corrosion sealed cavity structure 100 is broken by electro-corrosion, the first connecting end cap 104 separates from the cavity. Under the gravity of the heavy object 212, the first end of the first mounting lever 202 tilts upward relative to the lever body, and the second end of the first mounting lever 202 tilts downward relative to the lever body. The opening of the limiting groove becomes larger, and the limiting block of the mounting rod 205 disengages from the limiting groove, thereby completing the throwing of the heavy object 212.

[0061] Specifically, refer to Figure 3 The mounting base plate 201 is placed horizontally. The mounting base plate 201 is fixedly connected to the bottom of the electro-corrosion sealing cavity structure 100.

[0062] Continue to refer to Figure 3 The first mounting lever 202 includes a first end and a second end. The first end of the first mounting lever 202 is fixedly connected to the first connecting end cap 104 of the electro-corrosion sealing cavity structure 100. The fixed connection method includes, but is not limited to, welding, riveting, bonding, and snap-fitting. For example, the first end of the first mounting lever 202 can be fixedly connected to the first connecting end cap 104 of the electro-corrosion sealing cavity structure 100 by means of a limiting pin 207.

[0063] The second end of the first mounting lever 202 can be fixedly connected to the mounting base plate 201 via the pivot 206. It is easy to understand that when the first end of the first mounting lever 202 is fixed, the second end of the first mounting lever 202 is also fixed; when the first end of the first mounting lever 202 loses its limiting position, the first mounting lever 202 can rotate around the pivot 206. That is to say, refer to... Figure 4 The pivot 206 can be used as the fulcrum of the first mounting lever 202. When the anode rod 103 is corroded and broken, the first end of the first mounting lever 202 loses its restraint. Under the gravity of the weight 212, both ends of the first mounting lever 202 can move in a circular motion around the fulcrum. For example, Figure 4 As shown, the second end can rotate clockwise around the fulcrum, so the first end can also rotate clockwise around the fulcrum.

[0064] Furthermore, returning to Figure 3The connection method for fixing the second end of the first mounting lever 202 to the mounting base plate 201 via the rotating shaft 206 can be as follows: the second end of the first mounting lever 202 can be provided with a through hole, the rotating shaft 206 can be inserted into the through hole, and the two ends of the rotating shaft 206 can be fixed by the bracket 203 fixed on the mounting base plate 201.

[0065] Continue to refer to Figure 3 The second mounting lever 204 may include a first end and a second end. The second end of the second mounting lever 204 and the second end of the first mounting lever 202 can be combined to form a limiting groove. The first end of the second mounting lever 204 is fixedly connected to the mounting base plate 201. The fixed connection method includes, but is not limited to, welding, riveting, bonding, and snap-fitting.

[0066] Continue to refer to Figure 3 and combined Figure 4 The mounting rod 205 may include a first end and a second end. The first end of the mounting rod 205 is fixed to the weight 212. The second end of the mounting rod 205 may be configured as a limiting block corresponding to a limiting groove. The weight 212 can be mounted below the mounting base plate 201 by the cooperation of the limiting block and the limiting groove. That is, the limiting block can be engaged in the limiting groove, thereby mounting the weight 212 below the mounting base plate 201.

[0067] In this embodiment, after the anode rod 103 corrodes and fractures, the gravity of the weight 212 directly drives the mounting lever, and the unloading process requires no external energy or human intervention. The mounting base plate 201 and the mounting lever structure can distribute the load of the heavy object, adapting to the needs of heavy unloading. Most components of the unloading device are mechanically designed, resulting in lower manufacturing and maintenance costs compared to hydraulic or electric unloading systems.

[0068] Based on the above embodiments, refer to Figure 3 and combined Figure 5 The loading device 10 may also include a U-shaped beam 208, which may include a top plate 2081 and a bottom plate 2082. The top plate 2081 is fixedly connected to the bottom of the mounting base plate 201, and the bottom plate 2082 is fixedly connected to the bottom of the electro-corrosion sealing cavity structure 100.

[0069] It is easy to understand that the bottom of the electro-corrosion sealing cavity structure 100 can be fixed to the mounting base plate 201 by means of the U-shaped beam 208. The U-shaped beam 208 forms a connecting bridge between the two components (mounting base plate 201 and electro-corrosion sealing cavity structure 100) to ensure a stable connection between the two components.

[0070] In one implementation, continue to refer to Figure 3The second end of the second mounting lever 204 can be fixed to the mounting base plate 201 via the pivot 209. The first end of the second mounting lever 204 can be fixed to the mounting base plate 201 via the limiting key 210. It is easy to understand that when the first end of the second mounting lever 204 is locked by the limiting key 210, the second end of the second mounting lever 204 will remain fixed. Figure 4 When the first end of the second mounting lever 204 is released by the limiting key 210, the first end of the second mounting lever 204 loses its limiting position, and the second mounting lever 204 can rotate around the pivot 209. That is to say, the pivot 209 can be used as the fulcrum of the second mounting lever 204, and both ends of the second mounting lever 204 can make circular motions around the fulcrum. For example, if the second end can rotate counterclockwise around the fulcrum, then the first end can also rotate counterclockwise around the fulcrum.

[0071] Further reference Figure 3 The second end of the second mounting lever 204 can be fixed to the mounting base plate 201 via the rotating shaft 209 by means of a through hole at the second end of the second mounting lever 204, into which the rotating shaft 209 can be inserted, and the two ends of the rotating shaft 209 can be fixed by the bracket 203 fixed on the mounting base plate 201.

[0072] In this embodiment, not only can the first mounting lever 202 be controlled to throw the weight 212 through the electro-corrosion sealing cavity structure 100, but the second end of the second mounting lever can also be locked by the limiting key 210. By controlling the locking or releasing of the limiting end, the constraint state of the second mounting lever 204 on the weight 212 can be controlled, and the start and stop of the throwing can be realized, which further improves the flexibility and reliability of the throwing device 10.

[0073] Based on the above embodiment, the limiting key 210 is provided with a limiting screw 211. The limiting screw 211 can be used to fix the limiting key 210 to the first end of the second mounting lever 204.

[0074] This application also provides a ballast jetting system, which may include the ballast jetting device 10 described in any of the above embodiments.

[0075] Figure 6 A schematic diagram of a launch system structure is shown. (Reference) Figure 6 The ballast jettisoning system may also include a ballast jettisoning relay 20, a main power supply 31 and a backup power supply 32, and an automatic power switching module 40.

[0076] Specifically, the jettison relay 20 can be used to receive a jettison signal and connect the circuit based on the jettison signal. For example, when an underwater vehicle is performing underwater operations and encounters a situation where it needs to jettison, it can send a jettison signal to the jettison relay 20. After receiving the jettison signal, the contacts of the jettison relay 20 close, connecting the load circuit.

[0077] Additionally, the jettison system may include two power sources: a main power source 31 and a backup power source 32. Both power sources can supply power to the jettison device 10.

[0078] Furthermore, the automatic power switching module 40 is used to control the switching between the main power supply 31 and the backup power supply 32. When a failure is detected in the main power supply 31, the automatic power switching module 40 can automatically switch the load disposal device 10 from the main power supply 31 to the backup power supply 32.

[0079] Specifically, the automatic power switching module 40, the load dumping relay 20, and the load dumping device 10 are connected in series. The main power supply 31 and the backup power supply 32 are connected in parallel at the input terminal and are both connected to the automatic power switching module 40, but they do not supply power at the same time. When the load dumping relay 20 receives a load dumping signal, the automatic power switching module 40 controls the main power supply 31 or the backup power supply 32 to supply power to the load dumping device 10, and the load dumping device 10 performs load dumping.

[0080] In this embodiment, the jettisoning system adopts a dual-redundant power supply design, which improves the reliability of the jettisoning device under power failure of the underwater vehicle. Power is only switched on to begin jettisoning after a jettisoning signal is received. During standby, the jettisoning system consumes no power, achieving zero standby power, effectively reducing the underwater vehicle's load power consumption and extending its mission duration.

[0081] In the description of this specification, specific features, structures, materials, or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0082] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. An electro-corrosion sealing cavity structure, characterized in that, include: The cavity is provided with an upper through hole and a side through hole; The side through-hole is used to inject an electro-corrosion solution into the cavity; A cathode sealing cap is fixedly connected to the cavity and is used to seal the side through hole; wherein the cathode sealing cap is configured to be in contact with the electro-corrosion liquid inside the cavity; The anode rod has anti-corrosion zones at both ends and an electro-corrosion zone in the middle. One end of the rod passes through the upper through hole, and the other end is fixedly connected to the lower side of the cavity. The first connecting end cap seals the upper through hole by abutting against the cavity and is fixedly connected to the anode rod; The cathode sealing cover is electrically connected to the cathode of the power supply, and the anode rod is electrically connected to the anode of the power supply. When the power supply is turned on and begins to supply power, the electro-corrosion liquid corrodes the electro-corrosion area of ​​the anode rod. After the anode rod is broken by electro-corrosion, the first connecting end cover separates from the cavity.

2. The electro-corrosion sealing cavity structure according to claim 1, characterized in that, It also includes a second connecting end cap, and the lower end of the cavity is provided with a lower through hole. The second connecting end cap seals the lower through hole by abutting against the cavity and is fixedly connected to the anode rod.

3. The electro-corrosion sealing cavity structure according to claim 1, characterized in that, The anode rod is made of stainless steel, and the cathode sealing cover is made of any one of titanium alloy, platinum alloy, boron-doped diamond, iridium alloy, or iridium oxide.

4. A load-release device, characterized in that, Includes the electro-corrosion sealing cavity structure as described in any one of claims 1-3.

5. The ejection device according to claim 4, characterized in that, The ejection device also includes: The mounting base plate is placed horizontally to support heavy objects; the mounting base plate is fixedly connected to the bottom of the electro-corrosion sealing cavity structure. The first mounting lever includes a first end and a second end; the first end of the first mounting lever is fixedly connected to the first connecting end cap of the electro-corrosion sealing cavity structure, and the second end of the first mounting lever is fixedly connected to the mounting base plate through a rotating shaft; The second mounting lever includes a first end and a second end; the first end and the second end of the second mounting lever are fixedly connected to the mounting base plate; the second end of the second mounting lever and the second end of the first mounting lever combine to form a limiting groove; The mounting rod includes a first end and a second end. The first end of the mounting rod is fixed to the weight, and the second end of the mounting rod is configured as a limiting block corresponding to the limiting groove. The weight is mounted below the mounting base plate by the cooperation of the limiting block and the limiting groove.

6. The ejection device according to claim 5, characterized in that, The ejection device also includes: The U-shaped beam includes a top plate and a bottom plate. The top plate is fixedly connected to the bottom of the mounting base plate, and the bottom plate is fixedly connected to the bottom of the electro-corrosion sealing cavity structure.

7. The ejection device according to claim 5, characterized in that, The second end of the second mounting lever is fixedly connected to the mounting base plate via a pivot, and the first end of the second mounting lever is fixedly connected to the mounting base plate via a limiting key.

8. The ejection device according to claim 7, characterized in that, The limiting key is provided with a limiting screw, which fixes the limiting key to the first end of the second mounting lever.

9. A load release system, characterized in that, Includes the ejection device as described in any one of claims 5-8.

10. The ejection system according to claim 9, characterized in that, Also includes: The main power supply and backup power supply are used to supply power to the ballast jettison device; Automatic power switching module is used to control the switching between main power and backup power; A load-discharge relay is used to receive a load-discharge signal and connect the circuit based on the load-discharge signal; The main power supply and backup power supply output terminals, automatic power switching module, load dumping relay and load dumping device are connected in series, and the main power supply and backup power supply are connected in parallel at the input terminal; after the load dumping relay receives the load dumping signal, the main power supply or backup power supply supplies power to the load dumping device, and the load dumping device performs load dumping.

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