An underwater rapid buoyancy escape cabin

Abstract

The underwater rapid floating escape cabin of the present invention comprises: four circumferentially arranged lifting and adjusting cavities are installed on the outer wall of a vertical cabin body, an air inlet and an air outlet are arranged on the top of each lifting and adjusting cavity, and a water inlet and a water outlet are arranged on the bottom, an air inlet pipeline connected to each air inlet and an air outlet pipeline connected to each air outlet are installed in the cabin body, an air inlet check valve and an air inlet electric valve are installed on each air inlet pipeline, an air outlet check valve and an air outlet electric valve are installed on each air outlet pipeline, a water inlet check valve and a water inlet electric valve are installed on each water inlet, a water discharge check valve and a water discharge electric valve are installed on each water outlet, and a gyroscope sensor is installed in each lifting and adjusting cavity; when a controller receives a command for the escape cabin to float, only the four air inlet electric valves and the four water discharge electric valves are controlled to be opened, the gas in the first gas cylinder is pressed into the corresponding lifting and adjusting cavity through each air inlet pipeline and the air inlet, and the water in each lifting and adjusting cavity is discharged through the corresponding water outlet, so that the cabin body as a whole floats rapidly.

Description

Technical Field

[0001] The invention relates to the technical field of submarine escape chambers, in particular to an underwater fast-floating escape chamber. Background Art

[0002] Submarines are ships that can operate underwater. Submarines are easily damaged when attacked by torpedoes or hit by external forces. In addition, the water pressure in the deep sea is high, and seawater will quickly pour into the submarine, causing serious consequences such as the destruction of the aircraft and the death of people. The emergency escape device or escape hatch on the submarine can provide escape.

[0003] Publication number CN105644746A discloses a submarine with a deep-sea emergency escape device, but the drawback is that it does not disclose how to quickly float the escape capsule to the surface to escape danger. Summary of the invention

[0004] The present invention aims at the problems and shortcomings of the prior art and provides an underwater fast floating escape cabin.

[0005] The present invention solves the above technical problems through the following technical solutions:

[0006] The present invention provides an underwater rapid buoyancy escape cabin, comprising a vertical cabin body, the cabin body is provided with a sealed cabin door for submarine personnel to enter and exit, and the cabin body is characterized in that the outer wall of the cabin body is provided with four lifting and adjusting cavities arranged circumferentially and evenly spaced, the top of each lifting and adjusting cavity is provided with an air inlet and an air outlet, the bottom of each lifting and adjusting cavity is provided with a water inlet and a water outlet, an air inlet pipeline for connecting with each air inlet and an air outlet pipeline for connecting with each air outlet are installed in the cabin body, and each air inlet pipeline is provided with a water inlet. Each of the air inlet pipes is connected to a first gas cylinder fixed at the bottom of the cabin, each of the air inlet pipes is installed with an air inlet check valve and an air inlet electric valve, each of the air outlet pipes is connected to a second gas cylinder fixed at the bottom of the cabin, each of the air outlet pipes is installed with an air outlet check valve and an air outlet electric valve, an air pressure sensor is installed at the top of each lifting and adjusting cavity, each of the water inlets is installed with a water inlet check valve and a water inlet electric valve, each of the water outlets is installed with a drainage check valve and a drainage electric valve, and a gyroscope sensor is installed in each lifting and adjusting cavity;

[0007] A controller is provided in the cabin, and the controller is used to control only four air inlet electric valves and four water discharge electric valves to open at the same time when receiving the command for the escape cabin to float up, so that the gas in the first gas cylinder is pressed into the corresponding lifting and adjusting cavity through each air inlet pipeline and the air inlet, and the water in each lifting and adjusting cavity is discharged through the corresponding water outlet, so that the cabin body floats up quickly as a whole, and receives the air pressure value in the corresponding lifting and adjusting cavity detected by each air pressure sensor;

[0008] The controller is also used to receive the azimuth signals detected by the four gyroscope sensors during the rapid floating of the entire cabin, and determine whether the difference between the maximum Z value and the minimum Z value in the four azimuth signals is greater than the upper limit setting value. If so, the air intake electric valve and the drainage electric valve corresponding to the maximum Z value will be closed until the difference between the maximum Z value and the minimum Z value is less than the lower limit setting value, and then the air intake electric valve and the drainage electric valve corresponding to the maximum Z value will be opened. If not, the current state will be maintained.

[0009] Furthermore, the controller is also used to, during the rapid ascent of the cabin as a whole, if it is analyzed based on the four azimuth signals that the cabin has not floated within a first set time period, then the four air inlet electric valves and the four water discharge electric valves are controlled to be closed at the same time, and only the four air outlet electric valves and the four water inlet electric valves are controlled to be opened, and timing is started, the gas in each lifting and adjusting chamber flows into the second gas cylinder through the corresponding air outlet and air outlet pipeline, and water flows into each lifting and adjusting chamber through the water inlet, so that the cabin as a whole descends, and after the second set time period is counted, the four air outlet electric valves and the four water inlet electric valves are controlled to be closed, and only the four air inlet electric valves and the four water discharge electric valves are controlled to be opened, and the cabin continues to rapidly float as a whole.

[0010] The positive progressive effect of the present invention is that the present invention facilitates the rapid overall floating of the cabin through four independently controlled lifting and adjusting cavities, and at the same time can achieve stability of the cabin in four directions of front, back, left and right during the rapid overall floating of the cabin. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a structural schematic diagram of an underwater rapid floating escape cabin according to a specific embodiment 1 of the present invention;

[0012] Figure 2 is a cross-sectional view of an electrolysis gas supply system according to a specific embodiment 1 of the present invention;

[0013] Figure 3 It is a schematic structural diagram of the staggered arrangement of the auxiliary adjustment cavity and the lifting adjustment cavity according to the specific embodiment 2 of the present invention. DETAILED DESCRIPTION

[0014] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0015] Example 1

[0016] like Figure 1 and 2 As shown, the present embodiment provides an underwater rapid buoyancy escape cabin, comprising a vertical cabin 1, a sealed cabin door for submarine personnel to enter and exit is installed on the cabin 1, four lifting and adjusting cavities 2 arranged circumferentially and evenly spaced are installed on the outer wall of the cabin 1, the four lifting and adjusting cavities 2 are distributed in the east, west, south and north directions of the cabin 1, an air inlet 21 and an air outlet 22 are opened on the top of each lifting and adjusting cavity 2, a water inlet 23 and a water outlet 24 are opened on the bottom of each lifting and adjusting cavity 2, an air inlet pipeline 3 for connecting to each air inlet 21, and an air outlet pipeline 4 for connecting to each air outlet 22 are installed in the cabin 1, Each air inlet pipeline 3 is connected to a first gas cylinder 5 fixed at the bottom of the cabin 1, and each air inlet pipeline 3 is installed with an air inlet check valve and an air inlet electric valve (not shown in the figure), each air outlet pipeline 4 is connected to a second gas cylinder fixed at the bottom of the cabin 1 (not shown in the figure), and each air outlet pipeline 4 is installed with an air outlet check valve and an air outlet electric valve (not shown in the figure), a pressure sensor is installed at the top of each lifting and adjusting cavity 2, each water inlet 23 is installed with a water inlet check valve and a water inlet electric valve, each water outlet 24 is installed with a drainage check valve and a drainage electric valve, and a gyroscope sensor is installed in each lifting and adjusting cavity 2.

[0017] The cabin 1 is in a vertical pill shape, and includes an upper hemispherical cavity, a cylindrical cavity and a lower hemispherical cavity arranged from top to bottom, a horizontally arranged pedal 6 is installed between the lower hemispherical cavity and the cylindrical cavity, and a first gas cylinder 5 and a second gas cylinder are installed in the lower hemispherical cavity. The top and bottom of the lifting and adjusting cavity 2 are both arc-shaped structures to reduce the resistance during the floating process.

[0018] A controller is provided in the cabin 1. When receiving the command for the escape cabin to float up, the controller is used to control only the four air inlet electric valves and the four water discharge electric valves to open, that is, the four air outlet electric valves and the four water inlet electric valves to be closed. The gas in the first gas cylinder 5 is pressed into the corresponding lifting and adjusting cavity 2 through each air inlet pipeline 3 and the air inlet 21, and the water in each lifting and adjusting cavity 2 is discharged through the corresponding water outlet 24. The overall weight of the cabin 1 becomes lighter, so that the cabin 1 floats up quickly as a whole, and receives the air pressure value in the corresponding lifting and adjusting cavity 2 detected by each air pressure sensor.

[0019] The controller is also used to receive the azimuth signals detected by the four gyro sensors during the rapid floating of the entire cabin, and determine whether the difference between the maximum Z value and the minimum Z value in the four azimuth signals is greater than the upper limit setting value. If it is, the air intake electric valve and the drainage electric valve corresponding to the maximum Z value will be closed until the difference between the maximum Z value and the minimum Z value is less than the lower limit setting value, and then the air intake electric valve and the drainage electric valve corresponding to the maximum Z value will be opened. If it is not, the current state will be maintained. The four lifting and adjusting cavities 2 adjust the four lifting and adjusting cavities 2 to perform floating control or stop floating control through the signal values ​​sensed by the gyro sensors therein, thereby maintaining the stability of the cabin 1.

[0020] The controller is also used for the whole body rapid floating process of the cabin. Based on the four azimuth signals, if the cabin does not float within the first set time period, it is analyzed that the cabin has encountered an obstacle and needs to avoid it. Then, the four air inlet electric valves and the four drainage electric valves are controlled to be closed at the same time, and only the four air outlet electric valves and the four water inlet electric valves are controlled to be opened, and the timing is started. The gas in each lifting and adjusting cavity 2 flows into the second gas cylinder through the corresponding air outlet 22 and the air outlet pipeline 4, and water flows into each lifting and adjusting cavity 2 through the water inlet 23. The overall weight of the cabin 1 becomes heavier, so that the cabin 1 is lowered as a whole. After the second set time period is counted, the four air outlet electric valves and the four water inlet electric valves are controlled to be closed, and only the four air inlet electric valves and the four drainage electric valves are controlled to be opened, and the cabin 1 continues to float up quickly as a whole. When encountering obstacles, it is necessary to avoid them. First, let the cabin as a whole descend for a certain period of time. During the descent process, the flow of the waves will push the cabin 1 to move forward, backward, left and right, so that the cabin 1 will avoid the obstacles, and then the cabin 1 will continue to float up quickly as a whole.

[0021] In addition, a folding seat for submariners to sit on is installed in the cabin 1, and a limb-limiting safety belt is installed on the folding seat, so that the submariners can sit on the folding seat safely.

[0022] An air supply system is installed in the cabin 1, and the air supply system includes an oxygen cylinder. The oxygen cylinder is connected to a breathing mask used by submarine personnel through a gas pipeline, so as to facilitate oxygen supply in the cabin.

[0023] The cabin 1 also includes an electrolytic gas supply system 7, which includes a water tank 701, and a cover plate 702 is detachably connected to the water tank 701. A hydrogen outlet 703 and an oxygen outlet 704 are installed on the cover plate 702. The hydrogen outlet 703 is connected to a hydrogen cylinder, and the oxygen outlet 704 is connected to an oxygen cylinder. A vertically arranged anode electrode 705 and a cathode electrode 706 are installed at the bottom of the water tank 701. The anode electrode 705 and the cathode electrode 706 are respectively connected to the positive and negative poles of a DC power supply 707. An oxygen deflector 708 and a hydrogen deflector 709 are installed on the cover plate 702. The tops of the oxygen deflector 708 and the hydrogen deflector 709 are respectively connected to the oxygen outlet 704 and the hydrogen outlet 703, and the bottoms of the oxygen deflector 708 and the hydrogen deflector 709 are respectively covered on the periphery of the anode electrode 705 and the cathode electrode 706. A vertical partition 710 is disposed on the cover plate 702 , and two side-by-side partitions 711 are disposed at the bottom of the water tank 701 . The area between the two partitions 711 is used to insert the partition 710 .

[0024] The bottom of the water tank 701 and the DC power supply 707 are installed on a three-dimensional adjustment platform, which includes a top plate 712 and a bottom plate 713. The top plate 712 and the bottom plate 713 are connected by two telescopic rods 714. A spherical support block 715 is installed on the lower surface of the top plate 712, and a rotating support seat 716 rotatably connected to the spherical support block 715 is installed on the upper surface of the bottom plate 713. The bottom plate 713 is detachably installed on the pedal 6. It is convenient to realize that the water tank is always kept level by extending and retracting the telescopic rod.

[0025] The principle of water in the water tank 701 generating oxygen through electrolysis is based on the redox reaction in the electrolysis process. When water is decomposed into hydrogen and oxygen under the action of the direct current of the direct current power supply 707, the positive electrode of the direct current power supply 707 is positively charged, and the positive charge is provided to the anode electrode 705, and the oxygen ions in the water are negatively charged, and the oxygen ions obtain positive charges at the positive electrode and become oxygen; the negative electrode of the direct current power supply 707 is negatively charged, and the negative charge is provided to the cathode electrode 706, and the hydrogen ions in the water are negatively charged, and the negative charge is obtained at the negative electrode and becomes hydrogen. The generated oxygen enters the oxygen cylinder, and the oxygen cylinder supplies oxygen to the breathing mask, and the generated hydrogen is collected for other uses.

[0026] Example 2

[0027] like Figure 3As shown, the outer wall of the cabin 1 is also equipped with four auxiliary adjustment cavities 8 which are arranged circumferentially and evenly spaced. The auxiliary adjustment cavity 8 is adjacent to the lifting adjustment cavity 2, forming a cross shape as a whole. The adjacent auxiliary adjustment cavity 8 and the lifting adjustment cavity 2 are adjustment modules, and the four auxiliary adjustment cavities 8 synchronously perform auxiliary floating and descending control; there is a gap between the auxiliary adjustment cavity 8 and the lifting adjustment cavity 2, and a sealing door is installed on the cabin 1 at the gap; the top and bottom of the auxiliary adjustment cavity 8 are both arc structures to reduce the resistance during the floating process.

[0028] An auxiliary air inlet is provided at the top of each auxiliary regulating cavity 8, and an auxiliary water inlet and an auxiliary water outlet are provided at the bottom. An auxiliary air inlet pipeline for connecting to each auxiliary air inlet is installed in the cabin 1, and each auxiliary air inlet pipeline is connected to the first gas cylinder 5. An auxiliary air inlet check valve and an auxiliary air inlet electric valve are installed on each auxiliary air inlet pipeline. An auxiliary air pressure sensor is installed on the top of each auxiliary regulating cavity, an auxiliary water inlet check valve and an auxiliary water inlet electric valve are installed on each auxiliary water inlet, and an auxiliary drainage check valve and an auxiliary drainage electric valve are installed on each auxiliary water outlet.

[0029] The controller is used to control only the opening of four air intake electric valves and four drainage electric valves, as well as four auxiliary air intake electric valves and four auxiliary drainage electric valves when receiving the command to float the escape cabin. The gas in the first gas cylinder 5 is pressed into the corresponding lifting and adjusting cavity 2 through each air intake pipeline 3 and the air inlet 21, and the water in each lifting and adjusting cavity 2 is discharged through the corresponding water outlet 24, so that the cabin body as a whole floats quickly. The gas in the first gas cylinder 5 is pressed into the corresponding auxiliary adjusting cavity 8 through each auxiliary air intake pipeline and auxiliary air inlet, and the water in each auxiliary adjusting cavity 8 is discharged through the corresponding auxiliary water outlet, so as to further make the cabin body as a whole float quickly, and receive the air pressure value in the corresponding auxiliary adjusting cavity 8 detected by each auxiliary air pressure sensor.

[0030] The controller is also used to receive the azimuth signals detected by the four gyroscope sensors during the rapid ascent of the cabin as a whole, and determine whether the difference between the maximum Z value and the minimum Z value in the four azimuth signals is greater than the upper limit setting value. If it is yes, the air intake electric valve and the drainage electric valve corresponding to the maximum Z value will be controlled to be closed, as well as the adjacent auxiliary air intake electric valve and the auxiliary drainage electric valve, until the difference between the maximum Z value and the minimum Z value is less than the lower limit setting value, and then the air intake electric valve and the drainage electric valve corresponding to the maximum Z value will be controlled to be opened, as well as the adjacent auxiliary air intake electric valve and the auxiliary drainage electric valve, and the current state will be maintained if it is no.

[0031] The controller is also used for, during the rapid ascent of the cabin as a whole, if it is analyzed based on the four azimuth signals that the cabin 1 has not floated within the first set time period, then the four air inlet electric valves and the four drainage electric valves are controlled to be closed, as well as the four auxiliary air inlet electric valves and the four auxiliary drainage electric valves, and only the four air outlet electric valves, the four water inlet electric valves, and the four auxiliary water inlet electric valves are controlled to be opened, and the timing is started, the gas in each lifting and adjusting cavity 2 flows into the second gas cylinder through the corresponding air outlet 22 and the air outlet pipeline 4, water flows into each lifting and adjusting cavity 2 through the water inlet 21, so that the cabin as a whole descends, and water flows into each auxiliary adjusting cavity 8 through the auxiliary water inlet, so as to further descend the cabin as a whole, and after the third set time period is counted, the four air outlet electric valves and the four water inlet electric valves are controlled to be closed, as well as the four auxiliary water inlet electric valves are controlled to be closed, and only the four air inlet electric valves and the four drainage electric valves are controlled to be opened, as well as the four auxiliary air inlet electric valves and the four auxiliary drainage electric valves are controlled to be opened, and the cabin continues to rapidly float as a whole, and the third set time period is less than the second set time period.

[0032] Although the specific embodiments of the present invention are described above, those skilled in the art should understand that these are only examples, and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. An underwater rapid buoyancy escape cabin, comprising a vertical cabin body, on which a sealed cabin door for submarine personnel to enter and exit is installed, characterized in that: The outer wall of the cabin body is equipped with four lifting and adjusting cavities arranged circumferentially and evenly spaced, each of the lifting and adjusting cavities is provided with an air inlet and an air outlet at the top, and each of the lifting and adjusting cavities is provided with a water inlet and a water outlet at the bottom. An air inlet pipeline for connecting with each air inlet and an air outlet pipeline for connecting with each air outlet are installed in the cabin body, each of the air inlet pipelines is connected to a first gas cylinder fixed at the bottom of the cabin body, an air inlet check valve and an air inlet electric valve are installed on each of the air inlet pipelines, each of the air outlet pipelines is connected to a second gas cylinder fixed at the bottom of the cabin body, an air outlet check valve and an air outlet electric valve are installed on each of the air outlet pipelines, an air pressure sensor is installed on the top of each lifting and adjusting cavity, a water inlet check valve and a water inlet electric valve are installed on each of the water inlets, a water discharge check valve and a water discharge electric valve are installed on each of the water outlets, and a gyroscope sensor is installed in each of the lifting and adjusting cavities; A controller is provided in the cabin, and the controller is used to control only four air inlet electric valves and four water discharge electric valves to open at the same time when receiving the command for the escape cabin to float up, so that the gas in the first gas cylinder is pressed into the corresponding lifting and adjusting cavity through each air inlet pipeline and the air inlet, and the water in each lifting and adjusting cavity is discharged through the corresponding water outlet, so that the cabin body floats up quickly as a whole, and receives the air pressure value in the corresponding lifting and adjusting cavity detected by each air pressure sensor; The controller is also used to receive the azimuth signals detected by the four gyroscope sensors during the rapid floating of the entire cabin, and determine whether the difference between the maximum Z value and the minimum Z value in the four azimuth signals is greater than the upper limit setting value. If so, the air intake electric valve and the drainage electric valve corresponding to the maximum Z value will be closed until the difference between the maximum Z value and the minimum Z value is less than the lower limit setting value, and then the air intake electric valve and the drainage electric valve corresponding to the maximum Z value will be opened. If not, the current state will be maintained.

2. The underwater rapid floating escape cabin according to claim 1, characterized in that: The controller is also used for, during the rapid ascent of the cabin as a whole, if it is analyzed based on the four azimuth signals that the cabin has not floated within a first set time period, then the four air inlet electric valves and the four water discharge electric valves are controlled to be closed at the same time, and only the four air outlet electric valves and the four water inlet electric valves are controlled to be opened, and timing is started, the gas in each lifting and adjusting cavity flows into the second gas cylinder through the corresponding air outlet and air outlet pipeline, and water flows into each lifting and adjusting cavity through the water inlet, so that the cabin as a whole descends, and after the second set time period is counted, the four air outlet electric valves and the four water inlet electric valves are controlled to be closed, and only the four air inlet electric valves and the four water discharge electric valves are controlled to be opened, and the cabin continues to rapidly float as a whole.

3. The underwater rapid floating escape cabin as claimed in claim 2, characterized in that: The outer wall of the cabin is also equipped with four auxiliary adjustment cavities arranged circumferentially and evenly spaced, and the auxiliary adjustment cavity is arranged adjacent to the lifting adjustment cavity, forming a cross shape as a whole; An auxiliary air inlet is provided on the top of each auxiliary regulating cavity, and an auxiliary water inlet and an auxiliary water outlet are provided on the bottom. An auxiliary air inlet pipeline for docking each auxiliary air inlet is installed in the cabin, and each auxiliary air inlet pipeline is connected to the first gas cylinder. An auxiliary air inlet check valve and an auxiliary air inlet electric valve are installed on each auxiliary air inlet pipeline. An auxiliary air pressure sensor is installed on the top of each auxiliary regulating cavity, an auxiliary water inlet check valve and an auxiliary water inlet electric valve are installed on each auxiliary water inlet, and an auxiliary drainage check valve and an auxiliary drainage electric valve are installed on each auxiliary water outlet. The controller is used to control only the four air intake electric valves and the four drainage electric valves to open, and the four auxiliary air intake electric valves and the four auxiliary drainage electric valves to open when receiving the escape cabin buoyancy instruction, the gas in the first gas cylinder is pressed into the corresponding lifting and adjusting cavity through each air intake pipeline and the air intake port, and the water in each lifting and adjusting cavity is discharged through the corresponding water outlet, so that the cabin body floats up quickly as a whole, the gas in the first gas cylinder is pressed into the corresponding auxiliary adjusting cavity through each auxiliary air intake pipeline and the auxiliary air intake port, and the water in each auxiliary adjusting cavity is discharged through the corresponding auxiliary water outlet, so that the cabin body floats up quickly as a whole, and the air pressure value in the corresponding auxiliary adjusting cavity detected by each auxiliary air pressure sensor is received; The controller is also used to receive the azimuth signals detected by the four gyroscope sensors during the rapid ascent of the cabin as a whole, and determine whether the difference between the maximum Z value and the minimum Z value in the four azimuth signals is greater than the upper limit setting value. If so, the air intake electric valve and the drainage electric valve corresponding to the maximum Z value are controlled to be closed, as well as the adjacent auxiliary air intake electric valve and the auxiliary drainage electric valve, until the difference between the maximum Z value and the minimum Z value is less than the lower limit setting value. The air intake electric valve and the drainage electric valve corresponding to the maximum Z value are controlled to be opened, as well as the adjacent auxiliary air intake electric valve and the auxiliary drainage electric valve, and the current state is maintained if not.

4. The underwater rapid floating escape cabin as claimed in claim 3, characterized in that: The controller is also used for, during the rapid ascent of the cabin as a whole, if it is analyzed based on the four azimuth signals that the cabin has not floated within the first set time period, then the four air inlet electric valves and the four drainage electric valves are controlled to be closed, as well as the four auxiliary air inlet electric valves and the four auxiliary drainage electric valves are controlled to be closed, and only the four air outlet electric valves, the four water inlet electric valves, and the four auxiliary water inlet electric valves are controlled to be opened, and timing is started, the gas in each lifting and regulating chamber flows into the second gas cylinder through the corresponding air outlet and air outlet pipeline, water flows into each lifting and regulating chamber through the water inlet, and water flows into each auxiliary regulating chamber through the auxiliary water inlet, so as to further make the cabin as a whole descend, and after the third set time period is counted, the four air outlet electric valves and the four water inlet electric valves are controlled to be closed, as well as the four auxiliary water inlet electric valves are controlled to be closed, and only the four air inlet electric valves and the four drainage electric valves are controlled to be opened, as well as the four auxiliary air inlet electric valves and the four auxiliary drainage electric valves are controlled to be opened, and the cabin continues to rapidly float as a whole, and the third set time period is less than the second set time period.

5. The underwater rapid floating escape cabin as claimed in claim 3, characterized in that: There is a gap between the auxiliary adjustment cavity and the lifting adjustment cavity, and a sealing door is installed on the cabin body at the gap.

6. The underwater rapid floating escape cabin as claimed in claim 3, characterized in that: The top and bottom of the auxiliary adjustment cavity and the lifting adjustment cavity are both arc-shaped structures.

7. The underwater rapid floating escape cabin according to claim 1, characterized in that: The cabin body is in a vertical pill shape, and includes an upper hemispherical cavity, a cylindrical cavity and a lower hemispherical cavity arranged in sequence from top to bottom. A horizontally arranged pedal is installed between the lower hemispherical cavity and the cylindrical cavity, and a first gas cylinder and a second gas cylinder are installed in the lower hemispherical cavity.

8. The underwater rapid floating escape cabin according to claim 1, characterized in that: A folding seat for submarine personnel to sit on is installed in the cabin, and a safety belt for limiting limbs is installed on the folding seat; An air supply system is installed in the cabin, and the air supply system includes an oxygen cylinder. The oxygen cylinder is connected to a breathing mask used by submarine personnel through a gas pipeline.

9. The underwater rapid floating escape cabin as claimed in claim 8, characterized in that: The cabin also includes an electrolytic gas supply system, which includes a water tank, a cover plate is detachably connected to the water tank, a hydrogen outlet and an oxygen outlet are installed on the cover plate, the hydrogen outlet is connected to a hydrogen cylinder, and the oxygen outlet is connected to an oxygen cylinder; A vertically arranged anode electrode and cathode electrode are installed at the bottom of the water tank, and the anode electrode and cathode electrode are respectively connected to the positive and negative electrodes of a DC power supply; An oxygen flow guide cover and a hydrogen flow guide cover are installed on the cover plate, the tops of the oxygen flow guide cover and the hydrogen flow guide cover are respectively connected to the oxygen outlet and the hydrogen outlet, and the bottoms of the oxygen flow guide cover and the hydrogen flow guide cover are respectively covered on the periphery of the anode electrode and the cathode electrode; The cover plate is provided with a vertical partition, and the bottom of the water tank is provided with two partitions arranged side by side, and the area between the two partitions is used for inserting the partition.

10. The underwater rapid buoyancy escape cabin according to claim 9, characterized in that: The bottom of the water tank and the DC power supply are installed on a three-dimensional adjustment platform; The three-dimensional adjustment platform includes a top plate and a bottom plate, the top plate and the bottom plate are connected by two telescopic rods, a spherical support block is installed on the lower surface of the top plate, and a rotating support seat rotatably connected to the spherical support block is installed on the upper surface of the bottom plate, and the bottom plate is detachably mounted on a pedal in the cabin.

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