CN218949418U - Rescue buoy and diving device - Google Patents

Abstract

The utility model provides a rescue buoy and a submersible, wherein the rescue buoy comprises: the release device is used for being connected with the submersible and comprises a timing driving assembly and a locking assembly; the buoy device comprises a winding drum, a communicating pipe, a first connecting piece and a second connecting piece, wherein the winding drum is a buoyancy structural member, the communicating pipe is wound on the winding drum, one end of the communicating pipe is used for communicating with a ballast water tank of the submersible, the first connecting piece is connected with the winding drum and the other end of the communicating pipe, and the second connecting piece is connected with the winding drum and the locking assembly; the timing driving assembly can drive the locking assembly to be separated from the second connecting piece after exceeding a set time value; the rescue buoy can be released at fixed time, so that the problem that the rescue buoy cannot be released due to the failure of an internal system or equipment of the submersible is avoided; the rescue buoy can automatically float to the water surface after being released, so that the operation risk of rescue workers is reduced; the rescue buoy does not need to be pulled by a winch of the rescue ship, so that the requirement of a rescue crew on the rescue ship is reduced.

Description

Rescue buoy and diving device

Technical Field

The utility model relates to the technical field of diving equipment, in particular to a rescue buoy and a diving equipment.

Background

When the existing submersible cannot normally float out of the water due to distress under water, operators in the submersible are required to manually release the rescue buoy, the rescue mode has high requirements on the integrity of internal systems and equipment of the submersible, for example, a power supply system, a communication system and the like are required to operate well, rescue information can be sent out, and therefore the rescue mode has high requirements on the rescued submersible; or send professional diver to rescue under water, so that the requirement on the ship of the rescue diver is higher, the influence of sea conditions is larger, and meanwhile, the risk of underwater operation of the diver is high and the rescue cost is high.

Disclosure of Invention

The utility model aims to provide a rescue buoy and a submersible, which are used for solving the technical problems of high equipment integrity requirement, high risk and high rescue cost of the rescue submersible in the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

in a first aspect, there is provided a rescue buoy comprising:

the release device is used for being connected with the submersible, and comprises a timing driving assembly and a locking assembly;

the buoy device comprises a winding drum, a communicating pipe, a first connecting piece and a second connecting piece, wherein the winding drum is a buoyancy structural member, the communicating pipe is wound on the winding drum, one end of the communicating pipe is used for communicating with a ballast water tank of the submersible, the first connecting piece is connected with the winding drum and the other end of the communicating pipe, and the second connecting piece is connected with the winding drum and the locking assembly;

wherein the timing drive assembly is capable of driving the locking assembly to disengage from the second connector after a set time value is exceeded.

By adopting the technical scheme:

firstly, the rescue buoy can be released at fixed time, so that the problem that the rescue buoy cannot be released due to the failure of an internal system or equipment of the submersible is avoided, and further the rescue operation is failed;

secondly, the rescue buoy can automatically float to the water surface after being released, thereby being beneficial to capturing by rescue workers, avoiding the rescue workers from diving under the water surface in high sea conditions and reducing the operation risk of the rescue workers;

finally, the winding drum can drive the communicating pipe to the rescue boat by means of buoyancy, and the ballast water tank can drive the submersible to float upwards automatically by inflation on the rescue boat, so that a winch of the rescue boat is not required to be used for carrying out dragging operation, the requirement of the rescue operation team on the rescue boat is reduced, and further the rescue cost is reduced.

In one embodiment, the communicating pipe includes a first communicating section and a second communicating section communicating with the first communicating section, the first communicating section and the second communicating section are both wound on the spool, the first communicating section is formed with a first communicating end for communicating with a ballast water tank of the submersible, and the second communicating section is formed with a second communicating end for communicating with the ballast water tank of the submersible.

By adopting the technical scheme, the reliability of the inflation operation of the communicating pipe is improved.

In one embodiment, a fixed section is formed between the first communication section and the second communication section, the fixed section is fixedly connected with the first connecting member, the first communication section and the second communication section can be cut and separated at the fixed section after the reel is floated on the water surface, the first communication section is formed with a third communication end for communicating with one of the inflator and the drainer, and the second communication section is formed with a fourth communication end for communicating with the other of the inflator and the drainer.

Through adopting above-mentioned technical scheme, reduce the inflation degree of difficulty of communicating pipe, promote the inflation speed of communicating pipe when the rescue to promote the speed of floating of scuba.

In one embodiment, the first communication end and the second communication end are disposed a predetermined distance apart on a ballast water tank of the submersible.

Through adopting above-mentioned technical scheme, the inclined state of ballast water tank can be judged by the staff to above-mentioned design, and then the inclined state of analysis submersible improves rescue efficiency.

In one embodiment, the first communication end and the second communication end are configured to extend into a ballast water tank of the submersible, and a bilge distance between the first communication end and the second communication end and the ballast water tank of the submersible is less than or equal to 10 cm.

By adopting the technical scheme, the reliability of the air inflation and drainage operation of the communicating pipe is improved.

In one embodiment, the winding drum extends in a vertical direction, the first communication end and the second communication end are located at a lower side of the winding drum, the third communication end and the fourth communication end are located at an upper side of the winding drum, and the number of winding turns of the communication pipe increases from bottom to top in the vertical direction.

Through adopting above-mentioned technical scheme, improved the stability when the reel is at the come-up, made communicating pipe can be in proper order from the reel pine take off, reduce communicating pipe winding in the reel come-up in-process possibility, improved rescue buoy's reliability.

In one embodiment, the winding drum is provided with a winding drum hole extending along the vertical direction, the second connecting piece penetrates through the winding drum hole, the top end of the second connecting piece is connected with the top of the winding drum, and the bottom end of the second connecting piece is connected with the locking assembly.

By adopting the technical scheme, the winding drum can be kept in the vertical state all the time along with the diving of the diving device, and thus the buoy device is released.

In one embodiment, the locking assembly includes a locking lever for securing to the ballast tank and cooperating with the boom to secure or release the second connector. Through adopting above-mentioned technical scheme, locking driving lever and jib simple structure, both easily cooperate in order to realize the fixed and the release of second connecting piece.

In one embodiment, the locking assembly comprises a bracket fixed on a ballast water tank of the submersible, a first rotating shaft, a second rotating shaft, a third rotating shaft, a locking deflector rod, a cam and a hanging rod, wherein the first rotating shaft, the second rotating shaft and the third rotating shaft are sequentially arranged on the bracket at intervals in parallel, the locking deflector rod is arranged on the first rotating shaft, the cam is arranged on the second rotating shaft, the hanging rod is arranged on the third rotating shaft, the hanging rod is connected with the cam to fix the second connecting piece, the timing driving assembly is arranged on the bracket and is used for driving the locking deflector rod to rotate around the first rotating shaft, and the cam is triggered to rotate around the second rotating shaft to release the connection state with the hanging rod, so that the hanging rod can freely rotate around the third rotating shaft to release the second connecting piece.

By adopting the technical scheme, the locking assembly is simple in structure and high in reliability.

In a second aspect, there is provided a submersible provided with the rescue buoy described above, wherein the ballast water tank of the submersible is in communication with the communication pipe.

By adopting the technical scheme, on the basis of having the advantages of the rescue buoy of the embodiment, the submersible of the embodiment has the advantages of high rescue efficiency and low rescue operation requirement.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a perspective view of a submersible according to an embodiment of the utility model;

FIG. 2 is an enlarged view at "A" in FIG. 1;

FIG. 3 is a perspective view of a rescue buoy according to an embodiment of the present utility model;

FIG. 4 is an exploded view of a rescue buoy provided by an embodiment of the present utility model;

fig. 5 is a perspective view of a release device according to an embodiment of the present utility model.

The reference numerals in the drawings are as follows:

1. a release device; 2. a submersible; 3. a float device;

11. a timing drive assembly; 12. a locking assembly; 21. a ballast water tank; 31. a reel; 32. a communicating pipe; 33. a first connector; 34. a second connector;

121. a bracket; 122. a first rotating shaft; 123. a second rotating shaft; 124. a third rotating shaft; 125. locking a deflector rod; 126. a cam; 127. a boom; 311. a spool bore; 321. a first communication section; 322. a second communication section; 323. a fixed section;

3211. a first communication end; 3221. a second communication end; 3212. a third communication end; 3222. and a fourth communication terminal.

Detailed Description

In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the utility model is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected" to another element, it can be directly connected or indirectly connected to the other element.

It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing the utility model based on the orientation or positional relationship shown in the drawings, and are not to be construed as limiting the utility model, as the indicating device or element must have a particular orientation, be constructed and operated in a particular orientation.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating relative importance or indicating the number of technical features. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. The following describes in more detail the specific implementation of the present utility model in connection with specific embodiments:

as shown in fig. 1 to 3, the rescue buoy provided by the embodiment of the utility model is configured to be arranged on a submersible 2 and capable of being released to the water surface at a timing when the submersible 2 performs a diving task, so that a rescue worker captures the rescue buoy and rescue the submersible 2; the following description is made by way of specific embodiments:

the rescue buoy of this embodiment includes: a release device 1 and a float device 3;

wherein, the release device 1 is used for being connected with the submersible vehicle 2, and the release device 1 comprises a timing driving assembly 11 and a locking assembly 12; here, the release device 1 is intended to be fixedly connected to the submersible vehicle 2 for releasing the float device 3 after a set time has elapsed; specifically, the releasing device 1 comprises a timing driving assembly 11 and a locking assembly 12, the locking assembly 12 is used for being connected with the buoy device 3, the timing driving assembly 11 is used for setting preset time, and the locking assembly 12 is triggered to release the buoy device 3 after the preset time;

a buoy device 3 including a spool 31, a communication pipe 32, a first connection member 33 and a second connection member 34, the spool 31 being a buoyancy structural member, the communication pipe 32 being wound around the spool 31 and having one end for communication with the ballast tank 21 of the submersible 2, the first connection member 33 connecting the spool 31 and the other end of the communication pipe 32, the second connection member 34 connecting the spool 31 and the locking assembly 12; here, the float device 3 has the ability to float out of the water; specifically, the winding drum 31 can float out of the water surface under the buoyancy of water, and the winding drum 31 is made of buoyancy materials; the communication pipe 32 may be a hose which can be wound on the spool 31, one end of the communication pipe 32 being for connection and communication with the ballast water tank 21 of the submersible 2, the other end of the communication pipe 32 being connected with the first connection 33; the first connection 33 connects the spool 31 to achieve connection between the communication pipe 32 and the spool 31; the second connecting piece 34 connects the winding drum 31 and the locking assembly 12 to realize the connection between the buoy device 3 and the release device 1;

wherein the timing drive assembly 11 is capable of actuating the locking assembly 12 out of engagement with the second connector 34 after a set time value has been exceeded.

The rescue buoy provided in this embodiment has the following working principle:

the rescue buoy is installed on the submersible vehicle 2, wherein the release device 1 is fixed on the submersible vehicle 2, one end of the communicating pipe 32 is connected and communicated with the ballast water tank 21 of the submersible vehicle 2, the first connecting piece 33 is connected with the other end of the communicating pipe 32 and the winding drum 31, and the second connecting piece 34 is connected with the release device 1 and the winding drum 31; when the submersible 2 is submerged to perform a task, the rescue buoy is driven to submerge under the water, the timing driving assembly 11 is set with a preset time value, for example, the time required for performing the task is increased by a certain time value on the basis of the time, when the time for performing the task of the submersible 2 exceeds the preset time value, the release device 1 is triggered to release the second connecting piece 34, at the moment, the connection state of the reel 31 with the submersible 2 is released, namely, the submersible 2 is separated from and floats upwards, meanwhile, one end of the communicating pipe 32 still keeps being connected with the ballast water tank 21 of the submersible 2, so that the reel 31 drives the other end of the communicating pipe 32 to float upwards under the buoyancy, and the communicating pipe 32 originally wound on the reel 31 is sequentially released from the reel 31 until the reel 31 floats on the water; at this time, the rescue workers can capture the winding drum 31 from the water surface, then collect the winding drum 31 on the rescue boat, cut the other end of the communicating pipe 32 and inflate the communicating pipe 32, and the ballast water tank 21 is inflated by high-pressure air to drive the submersible 2 to automatically float, so that rescue recovery of the submersible 2 is realized.

By adopting the technical scheme:

firstly, the rescue buoy can be released at fixed time, so that the problem that the rescue buoy cannot be released due to the failure of an internal system or equipment of the submersible 2 is avoided, and further the rescue operation is failed;

secondly, the rescue buoy can automatically float to the water surface after being released, thereby being beneficial to capturing by rescue workers, avoiding the rescue workers from diving under the water surface in high sea conditions and reducing the operation risk of the rescue workers;

finally, the reel 31 can drive the communicating pipe 32 to the rescue boat by means of buoyancy, and can drive the submersible 2 to float up automatically by inflating the ballast water tank 21 on the rescue boat, so that a winch of the rescue boat is not required for carrying out dragging operation, the requirement of a rescue crew on the rescue boat is reduced, and the rescue cost is further reduced.

As shown in fig. 4, in one embodiment, the communication pipe 32 includes a first communication section 321 and a second communication section 322 that communicates with the first communication section 321, the first communication section 321 and the second communication section 322 are each wound on the spool 31, the first communication section 321 is formed with a first communication end 3211 for communicating with the ballast water tank 21 of the submersible 2, and the second communication section 322 is formed with a second communication end 3221 for communicating with the ballast water tank 21 of the submersible 2.

Here, the communication pipe 32 is used to connect and communicate with the ballast water tank 21 of the submersible 2; specifically, the communicating tube 32 includes a first communicating section 321 and a second communicating section 322, and optionally, the first communicating section 321 and the second communicating section 322 are wound around the reel 31 in layers, i.e., one of the first communicating section 321 and the second communicating section 322 is wound around an inner layer of the reel 31, and the other of the first communicating section 321 and the second communicating section 322 is wound around an outer layer of the reel 31; the first communicating section 321 and the second communicating section 322 are both connected and communicated with the ballast water tank 21 of the submersible 2, the first communicating end 3211 formed by the first communicating section 321 and the second communicating end 3221 formed by the second communicating section 322 are both positioned at one end of the communicating pipe 32 for connecting and communicating with the ballast water tank 21 of the submersible 2, and the other ends of the first communicating section 321 and the second communicating section 322 are connected with the winding drum 31, so that when the winding drum 31 can drive the first communicating section 321 and the second communicating section 322 to float upwards, the first communicating section 321 and the second communicating section 322 are sequentially loosened from the winding drum 31, and a rescue worker can capture the first connecting section and the second connecting section connected with the winding drum 31 and then perform inflation operation of the ballast water tank 21.

It will be appreciated that the first communicating section 321 and the second communicating section 322 may be used to inflate the ballast tank 21, and in the actual rescue process, the ballast tank 21 may be inclined in the water area along with the submersible vehicle 2, so that the water in the ballast tank 21 is inclined with respect to the ballast tank 21, thereby blocking the communicating pipe 32, and the communicating pipe 32 is divided into the first communicating section 321 and the second communicating section 322 so as to be respectively communicated with two opposite sides of the ballast tank 21, and when the ballast tank 21 is inclined to cause that one side of the communicating pipe 32 is in the air portion of the ballast tank 21 and cannot drain, the communicating pipe 32 on the other side is kept in communication with the water in the ballast tank 21, thereby ensuring the normal operation of the inflation operation.

By adopting the above technical scheme, the reliability of the inflation operation of the communication pipe 32 is improved.

In one embodiment, a fixed section 323 is formed between the first communication section 321 and the second communication section 322, the fixed section 323 is fixedly connected with the first connector 33, the first communication section 321 and the second communication section 322 can be cut and separated at the fixed section 323 after the spool 31 is floated on the water surface, the first communication section 321 is formed with a third communication end 3212 for communication with one of the inflator and the drain, and the second communication section 322 is formed with a fourth communication end 3222 for communication with the other of the inflator and the drain.

Here, it is further explained that, in order to allow water in the ballast water tank 21 to be rapidly discharged and to raise the inflation speed to raise the floating speed of the submersible vehicle 2, one of the first communication section 321 and the second communication section 322 is provided as an inflation communication section, and the other of the first communication section 321 and the second communication section 322 is provided as a drainage communication section; specifically, when a rescuer inflates one of the first communication section 321 and the second communication section 322, water in the ballast water tank 21 is discharged to the water surface through the other of the first communication section 321 and the second communication section 322, and the pressure of the water surface is much smaller than the water pressure under the water surface, so that the difficulty of inflation can be reduced, and the air pressure required for inflation can be reduced by such a design.

By adopting the technical scheme, the inflation difficulty of the communicating pipe 32 is reduced, and the inflation speed of the communicating pipe 32 during rescue is improved, so that the floating speed of the submersible 2 is improved.

In one embodiment, the first communication end 3211 and the second communication end 3221 are arranged at a predetermined distance apart on the ballast water tank 21 of the submersible 2.

It will be appreciated that the ballast water tank 21 may be inclined along with the submersible 2, so that the first communication end 3211 and the second communication end 3221 are arranged on the ballast water tank 21 at intervals, which can effectively avoid that the first communication end 3211 and the second communication end 3221 cannot drain water; specifically, the first and second communication ends 3211 and 3221 are preferably in communication with the top surface of the ballast water tank 21 and are disposed at opposite corners of the top surface, respectively, such that when the ballast water tank 21 is inclined, at least one of the first and second communication ends 3211 and 3221 is positioned under the water surface of the ballast water tank 21 to perform a water discharge operation, and such that the other one of the first and second communication ends 3211 and 3221 may perform an air inflation operation. The rescuer may determine whether the inclined state of the submersible 2 is determined from the first communication end 3211 and the second communication end 3221 if the rescuer is able to drain water, for example, when the rescuer inflates the first communication section 321, if the second communication section 322 is unable to drain water, it means that the second communication end 3221 is in communication with the air portion in the ballast water tank 21, that is, the ballast water tank 21 is inclined downward toward the first communication section 321 side, and at this time, it is necessary to switch to the second communication section 322 to perform the inflation operation; similarly, when the second communication section 322 performs the inflation operation and the first communication section 321 cannot drain water, then it is determined that the ballast tank 21 is inclined downward on the side of the second communication section 322, and the rescue workers should switch the communication sections to perform the inflation operation; the inclined state of the submersible vehicle 2 can be determined by the ballast water tank 21, and thus the rescue efficiency can be improved.

By adopting the technical scheme, the design can realize that the rescue workers judge the inclined state of the ballast water tank 21, so that the inclined state of the submersible 2 is analyzed, and the rescue efficiency is improved.

In one embodiment, the first communication end 3211 and the second communication end 3221 are configured to extend into the ballast tank 21 of the submersible 2, and the bilge distance between the first communication end 3211 and the second communication end 3221 and the ballast tank 21 of the submersible 2 is 10 cm or less.

Here, it can be understood that the first communication end 3211 and the second communication end 3221 are disposed near the bilge of the ballast water tank 21, so that the first communication end 3211 and the second communication end 3221 can be positioned under the water surface of the ballast water tank 21 as much as possible even if the ballast water tank 21 is inclined, and the drainage operation of the first communication end 3211 and the second communication end 3221 is ensured to be effective.

By adopting the above technical scheme, the reliability of the operation of inflating and draining the communication pipe 32 is improved.

In one embodiment, the drum 31 extends in the vertical direction, the first and second communication ends 3211 and 3221 are located at the lower side of the drum 31, the third and fourth communication ends 3212 and 3222 are located at the upper side of the drum 31, and the communication pipe 32 increases the number of winding turns from the lower to the upper in the vertical direction.

Here, since the roll 31 extends in the vertical direction, the roll 31 is disposed on the ballast water tank 21 in an erected state, and the first communication end 3211 and the second communication end 3221 are located at the lower side of the roll 31 so as to be in communication with the ballast water tank 21, the third communication end 3212 and the fourth communication end 3222 are located at the upper side of the roll 31 for connection with the top of the roll 31, and the direction of the number of windings of the communicating tube 32 is from the lower side to the upper side, so that the communicating tube 32 can be sequentially released from the lower side to the upper side when the roll 31 floats up, thereby maintaining the roll 31 to keep an upward posture to float up.

By adopting the technical scheme, the stability of the winding drum 31 during floating is improved, the communicating pipe 32 can be sequentially loosened from the winding drum 31, the possibility of winding the communicating pipe 32 in the floating process of the winding drum 31 is reduced, and the reliability of the rescue buoy is improved.

In one embodiment, the spool 31 has a spool hole 311 extending in a vertical direction, and the second connector 34 is inserted into the spool hole 311, the top end of the second connector 34 is connected to the top of the spool 31, and the bottom end of the second connector 34 is connected to the locking assembly 12.

By adopting the technical scheme, the drum 31 can be kept in the vertical state all the time along with the diving of the diving device 2, and thus the buoy device 3 is released.

As shown in fig. 5, in one embodiment, the locking assembly 12 includes a locking lever 125 and a boom 127, the locking lever 125 being adapted to be secured to the ballast tank 21 and cooperating with the boom 127 to secure or release the second connector 34.

By adopting the above technical scheme, the locking deflector rod 125 and the hanger rod 127 are simple in structure, and the locking deflector rod 125 and the hanger rod 127 are easy to cooperate to fix and release the second connecting piece 34, so that the buoy device 3 is fixed and released.

In one embodiment, the locking assembly 12 includes a bracket 121 for being secured to the ballast tank 21 of the submersible 2, a first shaft 122, a second shaft 123 and a third shaft 124 sequentially spaced in parallel on the bracket 121, a locking lever 125 provided on the first shaft 122, a cam 126 provided on the second shaft 123, and a boom 127 provided on the third shaft 124, the boom 127 and the cam 126 being engaged to secure the second link 34, the timing drive assembly 11 being provided on the bracket 121 and for driving the locking lever 125 to rotate about the first shaft 122, the trigger cam 126 being rotated about the second shaft 123 to release the connection with the boom 127, the boom 127 being free to rotate about the third shaft 124 to release the second link 34.

Here, in the present embodiment, the second connection member 34 is a connection rope having a connection ring for being sleeved on the boom 127. It should be further explained that, when the cam 126 rotates around the second rotation shaft 123 to release the connection state with the hanger rod 127, a gap is formed between the cam 126 and the hanger rod 127, and the connection ring can be separated from the hanger rod 127 and float up with the sleeve.

It should be further explained that, in a practical application scenario, the lock lever 125 may trigger the actuating boom 127 directly, or may trigger the actuating boom 127 through other components, such as the cam 126 in the above embodiment.

By adopting the above technical scheme, the locking assembly 12 is simple in structure and high in reliability.

In one embodiment, the timing drive assembly 11 includes a drive motor, a battery, a relay, and a circuit board electrically connected in sequence, the drive motor being connected to a locking member.

By adopting the technical scheme, the timing driving assembly 11 is simple in structure and high in reliability.

In a second aspect, there is provided a submersible vehicle 2 provided with the rescue buoy described above, wherein a ballast water tank 21 of the submersible vehicle 2 communicates with a communicating pipe 32.

By adopting the technical scheme, on the basis of having the advantages of the rescue buoy of the embodiment, the submersible 2 of the embodiment has the advantages of high rescue efficiency and low rescue operation requirements.

In one embodiment, the rescue buoy can be further provided with a signal lamp or a communication signal device, so that subsequent rescue workers can find the rescue buoy quickly.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (10)

1. A rescue buoy, comprising:

a release device (1) for connection with a submersible vehicle (2), the release device (1) comprising a timing drive assembly (11) and a locking assembly (12);

buoy device (3) comprising a reel (31), a communicating pipe (32), a first connecting piece (33) and a second connecting piece (34), wherein the reel (31) is a buoyancy structural member, the communicating pipe (32) is wound on the reel (31) and one end of the communicating pipe is used for being communicated with a ballast water tank (21) of the submersible (2), the first connecting piece (33) is connected with the reel (31) and the other end of the communicating pipe (32), and the second connecting piece (34) is connected with the reel (31) and the locking assembly (12);

wherein the timing drive assembly (11) is capable of actuating the locking assembly (12) out of engagement with the second connector (34) after a set time value has been exceeded.

2. Rescue buoy according to claim 1, characterized in that the communication pipe (32) comprises a first communication section (321) and a second communication section (322) communicating with the first communication section (321), the first communication section (321) and the second communication section (322) being wound around the drum (31), the first communication section (321) being formed with a first communication end (3211) for communicating with a ballast water tank (21) of the submersible (2), the second communication section (322) being formed with a second communication end (3221) for communicating with a ballast water tank (21) of the submersible (2).

3. Rescue buoy according to claim 2, characterized in that a fixed section (323) is formed between the first communication section (321) and the second communication section (322), the fixed section (323) being fixedly connected with the first connection piece (33), the first communication section (321) and the second communication section (322) being capable of being cut apart at the fixed section (323) after the spool (31) has emerged on the water surface, the first communication section (321) being formed with a third communication end (3212) for communication with one of an inflator and a drain, the second communication section (322) being formed with a fourth communication end (3222) for communication with the other of the inflator and the drain.

4. Rescue buoy according to claim 2, characterized in that the first communication end (3211) and the second communication end (3221) are arranged at a predetermined distance apart on a ballast water tank (21) of the submersible (2).

5. Rescue buoy according to claim 2, characterized in that the first communication end (3211) and the second communication end (3221) are intended to extend into the ballast water tank (21) of the submersible (2), the first communication end (3211) and the second communication end (3221) being at a bilge distance of 10 cm or less from the ballast water tank (21) of the submersible (2).

6. A rescue buoy as claimed in claim 3, characterized in that the reel (31) extends in a vertical direction, the first communication end (3211) and the second communication end (3221) being located at the lower side of the reel (31), the third communication end (3212) and the fourth communication end (3222) being located at the upper side of the reel (31), the communication pipe (32) increasing the number of windings from bottom to top in the vertical direction.

7. Rescue buoy according to any one of claims 1-6, characterized in that the reel (31) has a reel hole (311) extending in vertical direction, the second connection piece (34) is arranged in the reel hole (311) in a penetrating way, the top end of the second connection piece (34) is connected with the top of the reel (31), and the bottom end of the second connection piece (34) is connected with the locking assembly (12).

8. Rescue buoy according to any one of claims 1 to 6, characterized in that the locking assembly (12) comprises a locking lever (125) and a boom (127), the locking lever (125) being intended to be fixed to the ballast tank (21) and cooperating with the boom (127) to fix or release the second connection (34).

9. Rescue buoy according to claim 8, characterized in that the locking assembly (12) comprises a bracket (121) for fixing to a ballast tank (21) of the submersible (2), a first shaft (122), a second shaft (123) and a third shaft (124) arranged on the bracket (121) in parallel and spaced apart in sequence, a locking lever (125) arranged on the first shaft (122), a cam (126) arranged on the second shaft (123) and a boom (127) arranged on the third shaft (124), the boom (127) and the cam (126) being connected to fix the second connection piece (34), the timing drive assembly (11) being arranged on the bracket (121) and being arranged to drive the locking lever (125) to rotate about the first shaft (122), triggering the cam (126) to rotate about the second shaft (123) to release the connection with the boom (127) so that the boom (127) can rotate freely about the third shaft (124) and the second connection piece (34) is released.

10. A submersible (2), characterized in that a rescue buoy according to any one of claims 1 to 9 is provided, the ballast water tank (21) of the submersible (2) being in communication with the communication pipe (32).

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