An emergency decompression and isolation device for underwater construction

Abstract

This invention provides an emergency decompression and isolation device for underwater construction, belonging to the field of underwater construction technology. The device includes a slide rail and an escape capsule. A slider is installed on the outer circumference of the escape capsule, which is slidably connected to the slide rail via the slider. When a diver encounters a sudden danger underwater, surface personnel can remotely control the control panel via an external communication system. The control panel opens the first electronic valve, and simultaneously, the compressor increases the air pressure to regulate the air pressure inside the capsule, thereby driving the transmission component to move downwards within the arc-shaped groove. The transmission component drives the buoyancy component to expel water from the storage chamber, allowing the escape capsule to surface. The diver can then ascend to the surface via the escape capsule, reducing the diver's physical exertion.

Description

Technical Field

[0001] This invention belongs to the field of underwater construction technology, and specifically relates to an emergency decompression and isolation device for underwater construction. Background Technology

[0002] Underwater construction operations refer to the general term for specialized operations such as engineering construction, maintenance, installation, exploration, and salvage carried out in underwater environments (including rivers, lakes, oceans, underground caves, etc.). Due to the characteristics of underwater environments such as high pressure, low visibility, complex water currents, and strong corrosiveness, underwater construction operations have much higher requirements for technology, equipment, and safety standards than land-based operations, and are an important part of civil engineering, marine engineering, municipal engineering, and other fields.

[0003] The pressure experienced by construction workers during underwater operations primarily comes from hydrostatic pressure, which increases significantly with water depth. They may also be affected by dynamic pressure and the balance of internal air pressure. This pressure not only acts on the external body but also directly impacts internal cavities such as the lungs, sinuses, and middle ear.

[0004] Prolonged underwater work exposes construction workers to multiple risks, such as decompression sickness and oxygen poisoning, due to extended exposure to high-pressure environments, increased physical exertion, and physiological decline. In such situations, workers may be unable to surface independently due to exhaustion. Therefore, there is an urgent need to develop an emergency decompression isolation device for underwater construction to address these problems. Summary of the Invention

[0005] The purpose of this invention is to provide an emergency decompression and isolation device for underwater construction, which aims to solve the problem in the prior art that construction workers may be unable to dive to the surface alone due to physical exhaustion when encountering danger.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an emergency decompression and isolation device for underwater construction, comprising: a slide rail and an escape chamber, wherein a slider is installed on the outer circumferential surface of the escape chamber, and the escape chamber is slidably connected to the slide rail via the slider; the interior of the escape chamber is provided with, from top to bottom, a pressure regulating chamber, a power chamber, a decompression chamber and a storage chamber, wherein a compressor is installed inside the power chamber, and the compressor is connected to the interior of the pressure regulating chamber and the decompression chamber via a pipeline;

[0007] The escape capsule has a water inlet pipe at the bottom, which is connected to the interior of the storage chamber. A first electronic valve is installed on the water inlet pipe. A buoyancy component is installed inside the storage chamber. An arc-shaped groove is opened inside the escape capsule, which is connected to the interior of the storage chamber and the air pressure regulating chamber. A transmission component is installed inside the arc-shaped groove, which is connected to the buoyancy component. A control panel is installed inside the decompression chamber, which is connected to the first electronic valve signal and the compressor control. Connecting pipes are installed on the outer periphery of the escape capsule.

[0008] The compressor increases the air pressure inside the pressure regulating chamber, which in turn drives the transmission component to move downward inside the arc-shaped groove. The transmission component then drives the buoyancy component to expel the water from the storage chamber, allowing the escape capsule to float upward.

[0009] As an emergency decompression and isolation device for underwater construction according to the present invention, preferably, the escape chamber has an annular groove inside, which is connected to an arc-shaped groove. The escape chamber also has a connecting channel inside, one end of which is connected to the interior of the pressure regulating chamber, and the other end of which is connected to the annular groove. An exhaust pipe is installed on the outer circumference of the escape chamber, and a second electronic valve is installed on the exhaust pipe. The second electronic valve is connected to the control panel. The exhaust pipe is connected to the interior of the annular groove, and a sealing structure is provided inside the annular groove to prevent seawater from entering the interior of the pressure regulating chamber.

[0010] As an emergency decompression and isolation device for underwater construction according to the present invention, preferably, the transmission component includes an arc-shaped connecting plate slidably disposed inside the arc-shaped groove, an annular slider slidably disposed inside the annular groove, the top of the arc-shaped connecting plate being connected to the annular slider, a connecting frame being installed on the outer circumference of the escape capsule, an inlet pipe being installed on the outer circumference of the escape capsule, the inlet pipe being connected to the interior of the decompression chamber, and a cover being provided on the inlet pipe.

[0011] As an emergency decompression and isolation device for underwater construction according to the present invention, preferably, the buoyancy component is a float plate installed inside the storage chamber. The float plate has a cylindrical plate structure and is hollow inside. The escape chamber has a second connecting groove inside. One end of the second connecting groove is connected to the inside of the storage chamber, and the other end of the second connecting groove is connected to the inside of the arc-shaped groove. A second connecting block is slidably installed inside the second connecting groove, and the bottom of the arc-shaped connecting plate is connected to the second connecting block.

[0012] As an emergency decompression and isolation device for underwater construction according to the present invention, preferably, the sealing structure includes a sealing ring installed on the top of the annular slider, a sealing ring installed inside the annular groove, and a sealing groove adapted to the sealing ring being opened at the bottom of the sealing ring.

[0013] As an emergency decompression isolation device for underwater construction according to the present invention, preferably, a fixing plate for placing an escape capsule is installed at the bottom of the slide rail, fixing blocks are provided at intervals in front and behind the fixing plate, a first connecting block is provided at intervals in front and behind the outer circumference of the escape capsule, a connecting plate is installed at the bottom of the first connecting block, a receiving groove with an upper opening is opened on the fixing block, and a self-locking device is provided inside the fixing block to lock the connecting plate inside the receiving groove.

[0014] As an emergency decompression and isolation device for underwater construction according to the present invention, preferably, the fixing block has a third sliding groove inside, the third sliding groove is connected to the receiving groove, a transmission rack is slidably arranged inside the third sliding groove, the end of the transmission rack facing the connecting plate has a first inclined surface that gradually increases in height from left to right, the end of the connecting plate facing the transmission rack has a second inclined surface that gradually increases in height from bottom to top, the first inclined surface and the second inclined surface are adapted to each other, the connecting plate has a slot adapted to the transmission rack, and the fixing block has a reset member inside, the reset member is connected to the transmission rack, the reset member is used to drive the transmission rack to move towards the connecting plate.

[0015] As an emergency decompression and isolation device for underwater construction according to the present invention, preferably, the fixed block has a movable groove inside, the movable groove is connected to the third sliding groove, the movable block is slidably disposed inside the movable groove, the movable block is connected to the transmission rack, the reset member is a spring connected to the movable block, the end of the spring away from the movable block is connected to the inner wall of the movable groove, the fixed block has a rotating groove inside, the rotating groove is connected to the interior of the third sliding groove, the rotating groove has a driving member inside, the driving member is connected to the transmission rack, and the driving member is used to push the transmission rack out of the slot.

[0016] As an emergency decompression and isolation device for underwater construction according to the present invention, preferably, the driving component is a transmission gear rotatably mounted inside the rotating groove via a bearing, the transmission gear meshes with a transmission rack, a throttle is mounted on the transmission gear, a first connecting groove with an upper opening is opened inside the fixed block, and a driving component is provided inside the first connecting groove, the driving component is used to drive the throttle to rotate.

[0017] As an emergency decompression and isolation device for underwater construction according to the present invention, preferably, the first connecting block has a first sliding groove inside, the first sliding groove is connected to the arc-shaped groove, a drive plate is slidably disposed inside the first sliding groove, the drive plate is connected to the arc-shaped connecting plate, the first connecting block has a second sliding groove inside, the second sliding groove is connected to the first sliding groove, an L-shaped push plate is slidably disposed on the second sliding groove, one end of the L-shaped push plate is inserted into the first sliding groove and connected to the drive plate, and the bottom of the L-shaped push plate is adapted to the first connecting groove.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] 1. The emergency decompression and isolation device for underwater construction allows surface workers to remotely control the control panel via an external communication system when divers encounter sudden danger underwater. The control panel opens the first electronic valve, and the compressor increases the air pressure inside the chamber, thereby driving the transmission component to move downward inside the arc-shaped groove. The transmission component drives the buoyancy component to expel the water from the storage chamber, allowing the escape capsule to float. Divers can then ascend to the surface through the escape capsule, reducing their physical exertion.

[0020] 2. The emergency decompression isolation device for underwater construction allows divers to open the first and second electronic valves via the control panel when they need to work underwater. Water flows into the storage chamber through the inlet pipe. Under the action of the water, the buoyancy component floats upward, which drives the transmission component to move upward. The transmission component then expels the gas inside the pressure regulating chamber, thereby increasing the weight inside the storage chamber. Divers can then descend to the work area via the escape capsule, improving work efficiency and further saving the divers' physical exertion.

[0021] 3. The emergency decompression isolation device for underwater construction allows divers to directly enter the decompression chamber after surfacing through the escape capsule. This avoids the risk of decompression sickness caused by rapid ascent, ensuring the safety of divers. It also allows for rapid entry into the decompression chamber, reducing waiting time during decompression and improving rescue efficiency.

[0022] 4. The emergency decompression isolation device for underwater construction: when the escape capsule descends to the underwater working area, the escape capsule is fixed to the fixed plate by a self-locking device to ensure the stability of the capsule. When it is necessary to dive, the self-locking device is unlocked by the drive component, so that the escape capsule can float smoothly, ensuring the safety of the divers and the efficiency of the operation. Attached Figure Description

[0023] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used in conjunction with embodiments of the invention to explain the invention and do not constitute a limitation thereof. In the drawings:

[0024] Figure 1 This is a three-dimensional structural diagram of a specific embodiment of the present invention;

[0025] Figure 2 This is a side view of a specific embodiment of the present invention;

[0026] Figure 3 for Figure 2 Schematic diagram of the cross-sectional structure of AA;

[0027] Figure 4 for Figure 3Enlarged structural diagram at point B;

[0028] Figure 5 for Figure 3 Enlarged structural diagram at point C;

[0029] Figure 6 This is a front view of the first connecting block and the fixing block in a specific embodiment of the present invention;

[0030] Figure 7 for Figure 6 Schematic diagram of the cross-sectional structure of BB;

[0031] Figure 8 This is a schematic diagram of the internal structure of the escape pod in a specific embodiment of the present invention;

[0032] Figure 9 This is a schematic diagram of the internal structure of the fixing block in a specific embodiment of the present invention.

[0033] In the diagram: 10. Slide rail; 11. Escape capsule; 12. Pressure regulating chamber; 121. Exhaust pipe; 122. Second electronic valve; 13. Power compartment; 131. Compressor; 14. Pressure reduction chamber; 141. Control panel; 142. Inlet pipe; 15. Storage compartment; 151. Water inlet pipe; 152. First electronic valve; 16. First connecting block; 161. Connecting plate; 162. First slide groove; 163. Drive plate; 164. Second slide groove; 165. L-shaped push plate; 166. Slot; 17. 171. Fixed block; 172. Third slide groove; 173. First connecting groove; 174. Moving groove; 175. Moving block; 176. Spring; 177. Transmission gear; 178. Transmission rack; 179. Throttle; 180. Arc groove; 181. Arc connecting plate; 190. Float plate; 191. Second connecting groove; 192. Second connecting block; 20. Fixed plate; 21. Annular groove; 22. Annular slider; 221. Sealing ring; 222. Sealing ring; 23. Sealing groove; 24. Connecting pipe; 25. Connecting frame. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] Please see Figure 1-7The present invention provides the following technical solution: an emergency decompression isolation device for underwater construction, comprising: a slide rail 10 and an escape capsule 11, wherein a slider is installed on the outer peripheral surface of the escape capsule 11, the escape capsule 11 is slidably connected to the slide rail 10 through the slider, the slide rail 10 is installed at the bottom of the underwater construction site, and the escape capsule 11 can move up and down on the slide rail 10 through the slider, and a fixing plate 20 for placing the escape capsule 11 is installed at the bottom of the slide rail 10.

[0036] The escape capsule 11 contains, from top to bottom, a pressure regulating chamber 12, a power chamber 13, a decompression chamber 14, and a storage chamber 15. The power chamber 13 is equipped with a compressor 131, which is connected to the pressure regulating chamber 12 and the decompression chamber 14 via pipes. The compressor 131 can generate high-pressure gas from the air inside the decompression chamber 14 and deliver it to the pressure regulating chamber 12, increasing the air pressure in the pressure regulating chamber 12. The decompression chamber 14 is a common type of decompression chamber, and it is equipped with a pressure monitoring instrument to monitor the air pressure inside the decompression chamber 14. The decompression chamber 14 is used for decompression operations on divers.

[0037] The bottom of the escape capsule 11 is equipped with a water inlet pipe 151, which is connected to the interior of the storage chamber 15. A first electronic valve 152 is installed on the water inlet pipe 151, which controls the water flow rate. When the storage chamber 15 is filled with water, it can increase the overall weight of the escape capsule 11, thereby causing the escape capsule 11 to sink stably.

[0038] The decompression chamber 14 is equipped with a control panel 141, which is connected to the first electronic valve 152. The opening and closing status of the first electronic valve 152 can be adjusted via the control panel 141. The control panel 141 is also connected to the compressor 131, allowing adjustment of the compressor's operating status. The control panel 141 can be connected to an external communication system for remote control. Remote control and real-time monitoring ensure the safety of divers.

[0039] The operator can adjust the air pressure inside the cabin from the ground via the control panel 141. The escape cabin 11 has an arc-shaped groove 18 inside, which is connected to the storage room 15 and the air pressure regulating chamber 12. The escape cabin 11 also has an annular groove 21 inside, which is connected to the arc-shaped groove 18. A connecting channel is also provided inside the escape cabin 11, with one end connected to the air pressure regulating chamber 12 and the other end connected to the annular groove 21. An exhaust pipe 121 is installed on the outer circumference of the escape cabin 11, which is connected to the annular groove 21. A second electronic valve 122 is installed on the exhaust pipe 121, which is signal-connected to the control panel 141. The control panel 141 can be used to adjust the opening and closing of the second electronic valve 122 to achieve air pressure balance in the air pressure regulating chamber 12.

[0040] Operators can remotely control the control panel 141 via an external communication system. The control panel 141 transmits commands to open the second electronic valve 122 and the first electronic valve 152, allowing seawater to flow into the storage chamber 15 from the inlet pipe 151, increasing the weight of the escape capsule 11. At the same time, excess gas is discharged through the exhaust pipe 121 to ensure the stable sinking of the escape capsule 11. When the storage chamber 15 is full of seawater, the first electronic valve 152 automatically closes, and the second electronic valve 122 also closes. The escape capsule 11 gradually sinks to the predetermined depth as seawater flows in.

[0041] The annular groove 21 is equipped with a sealing structure to prevent seawater from entering the pressure regulating chamber 12 through the annular groove 21 when the escape capsule 11 is diving. The sealing structure includes a sealing ring 221 installed on the top of the annular slider 22, a sealing ring 222 installed inside the annular groove 21, and a sealing groove 23 adapted to the sealing ring 221 at the bottom of the sealing ring 222. The sealing ring 221 is embedded in the sealing groove 23 to form a double seal, effectively isolating seawater.

[0042] The escape capsule 11 is equipped with a connecting frame 25 on its outer surface. Diving workers can hold the connecting frame 25 or secure their safety belts to the connecting frame 25 and dive into the underwater construction platform or work area as the escape capsule 11 sinks, saving diving time and energy and improving work efficiency.

[0043] The storage chamber 15 is equipped with a buoyancy component. When seawater fills the storage chamber 15, the buoyancy component is located at the top of the storage chamber 15. Figure 3 As shown, the arc-shaped groove 18 is equipped with a transmission component, which is connected to the buoyancy component. The buoyancy component drives the transmission component to float upward, thereby pushing the sealing ring 221 into the sealing groove 23 to form a double seal and effectively isolate seawater.

[0044] The transmission component includes an arc-shaped connecting plate 181 that slides inside the arc-shaped groove 18, an annular slider 22 that slides inside the annular groove 21, and the top of the arc-shaped connecting plate 181 that is connected to the annular slider 22. The buoyancy component is a float plate 19 that is installed inside the storage chamber 15. The float plate 19 has a cylindrical plate structure and is hollow inside. The hollow part is filled with lightweight material to enhance buoyancy.

[0045] The escape capsule 11 has a second connecting groove 191 inside. One end of the second connecting groove 191 is connected to the interior of the storage chamber 15, and the other end of the second connecting groove 191 is connected to the interior of the arc-shaped groove 18. A second connecting block 192 is slidably installed inside the second connecting groove 191. The bottom of the arc-shaped connecting plate 181 is connected to the second connecting block 192 to ensure that when the float 19 rises, it drives the arc-shaped connecting plate 181 and the annular slider 22 to move synchronously.

[0046] When a diver needs to surface due to exhaustion after prolonged underwater work, the diver can notify the surface operator via the communication device inside their diving suit. Upon receiving the signal, the surface operator activates the control panel 141 via a remote control terminal. The control panel 141 opens the first electronic valve 152 and simultaneously starts the compressor 131. The compressor 131 draws air from the decompression chamber 14 and pressurizes it into the pressure regulating chamber 12, increasing the pressure inside the chamber. This pressure increases the pressure inside the chamber and pushes the annular slider 22 downward through the connecting channel within the annular groove 21. The annular slider 22 then moves the arc-shaped connecting plate 181 downward in sync, and the arc-shaped connecting plate 181, through the second connecting block 192, causes the float 19 to descend synchronously.

[0047] As the float 19 descends, seawater is gradually discharged from the storage chamber 15, reducing buoyancy. The escape capsule 11 then floats upwards, allowing the diving personnel to safely return to the surface. The entire process is efficient and safe. An entry pipe 142 is installed on the outer surface of the escape capsule 11, which is connected to the decompression chamber 14. A hatch is installed on the entry pipe 142. After opening the hatch, the diving personnel can quickly enter the decompression chamber 14 for decompression treatment, ensuring that their bodies adapt to the changes in surface pressure and avoiding decompression sickness.

[0048] The escape capsule 11 is equipped with a connecting pipe 24 on its outer periphery. The connecting pipe 24 is connected to the inside of the decompression chamber 14. A valve is provided on the connecting pipe 24. Opening the valve can inject fresh air into the decompression chamber 14 to maintain the internal oxygen concentration and ensure the diver's breathing needs.

[0049] The operation of the compressor 131 is precisely controlled by the control panel 141. The compressor 131 can extract the air from the decompression chamber 14, and the second electronic valve 122 can discharge the gas outside the chamber, thereby regulating the air pressure inside the decompression chamber 14 to ensure a smooth transition of air pressure for divers during decompression and avoid the risks caused by sudden pressure changes.

[0050] Please see Figure 3-6 After the escape capsule 11 sinks to the predetermined position on the seabed, the fixing plate 20 is provided with fixing blocks 17 spaced back and forth, and the outer circumference of the escape capsule 11 is provided with first connecting blocks 16 spaced back and forth. The bottom of the first connecting block 16 is equipped with a connecting plate 161. The fixing block 17 is provided with an upper-opening receiving groove. The fixing block 17 is provided with a self-locking device inside. The self-locking device is used to lock the connecting plate 161 inside the receiving groove. Through the locking of the self-locking device, the escape capsule 11 is securely fixed to the seabed to prevent accidental movement.

[0051] The fixing block 17 has a third sliding groove 171 inside, which is connected to the receiving groove. A transmission rack 177 is slidably mounted inside the third sliding groove 171. The end of the transmission rack 177 facing the connecting plate 161 has a first inclined surface that gradually increases in height from left to right. The end of the connecting plate 161 facing the transmission rack 177 has a second inclined surface that gradually increases in height from bottom to top. The first and second inclined surfaces are adapted to each other. When the connecting plate 161 is pressed down, the first and second inclined surfaces are in close contact, and the transmission rack 177 slides away from the connecting plate 161 in the third sliding groove 171. The transmission rack 177 and the fixing block 17 are both treated with anti-rust to prevent them from rusting at the bottom of the water.

[0052] The connecting plate 161 has a slot 166 adapted to the transmission rack 177. The fixing block 17 has a reset component inside, which is connected to the transmission rack 177. The reset component drives the transmission rack 177 to move towards the connecting plate 161, thereby engaging the transmission rack 177 into the slot 166. Figure 8 As shown.

[0053] Please see Figure 5-7 The fixed block 17 has a movable groove 173 inside, which is connected to the third sliding groove 171. A movable block 174 is slidably installed inside the movable groove 173. The movable block 174 is connected to the transmission rack 177. The movable block 174 slides in the movable groove 173, driving the transmission rack 177 to move, so as to realize the precise locking and unlocking of the self-locking device and ensure the stability of the escape capsule 11 on the seabed.

[0054] The reset component is a spring 175 connected to the movable block 174. The end of the spring 175 away from the movable block 174 is connected to the inner wall of the movable groove 173. When the transmission rack 177 slides in the third slide groove 171 in the direction away from the connecting plate 161, it compresses the spring 175 and stores elastic potential energy. When the external force disappears, the spring 175 returns to its original state, driving the movable block 174 and the transmission rack 177 to reset. At this time, the transmission rack 177 re-engages into the slot 166. The spring 175 is treated with anti-rust to prevent the spring 175 from rusting.

[0055] The fixed block 17 has a rotating groove inside, which is connected to the interior of the third sliding groove 171. The rotating groove has a driving component inside, which is connected to the transmission rack 177. The driving component is used to push the transmission rack 177 to disengage from the slot 166, thereby achieving rapid unlocking and ensuring that the escape capsule 11 can quickly detach from the fixed block 17 in an emergency, thus improving escape efficiency.

[0056] Please see Figure 6 and Figure 7The driving component is a transmission gear 176 that is rotatably mounted inside a rotating slot via a bearing. The transmission gear 176 meshes with a transmission rack 177. A handle 178 is mounted on the transmission gear 176. A first connecting slot 172 with an upper opening is opened inside the fixing block 17. A driving component is installed inside the first connecting slot 172. The driving component is used to drive the handle 178 to rotate, thereby driving the transmission gear 176 to rotate, so that the transmission rack 177 can smoothly disengage from the slot 166, ensuring that the escape capsule 11 can be quickly unlocked in an emergency, improving escape safety. The transmission gear 176 is rust-proofed to prevent it from rusting.

[0057] The first connecting block 16 has a first sliding groove 162 inside, which is connected to the arc-shaped groove 18. A drive plate 163 is slidably disposed inside the first sliding groove 162, which is connected to the arc-shaped connecting plate 181. The first connecting block 16 has a second sliding groove 164 inside, which is connected to the first sliding groove 162. An L-shaped push plate 165 is slidably disposed on the second sliding groove 164. One end of the L-shaped push plate 165 is inserted into the first sliding groove 162 and connected to the drive plate 163. The bottom of the L-shaped push plate 165 is adapted to the first connecting groove 172.

[0058] When the arc-shaped connecting plate 181 moves downward, the L-shaped push plate 165 slides synchronously with the drive plate 163. The drive plate 163 is inserted into the first connecting groove 172, and pushes the handle 178 downward to rotate. The handle 178 drives the transmission gear 176 to rotate, and the transmission rack 177 quickly disengages from the slot 166. The escape capsule 11 is unlocked instantly and safely detaches from the fixing block 17, ensuring the rapid evacuation of personnel.

[0059] Please see Figure 1-7 Working principle: When divers encounter an emergency during underwater operations, they can hold onto or fasten their safety belts to the connecting frame 25 and send a distress signal to the surface via the communication equipment on their diving suits. After receiving the signal, surface rescuers can operate the control panel 141 via a remote control device. The control panel 141 controls the first electronic valve 152 to open and simultaneously starts the compressor 131. The compressor 131 delivers high-pressure gas to the pressure regulating chamber 12, causing the air pressure inside the pressure regulating chamber 12 to rise rapidly.

[0060] The air pressure in the pressure regulating chamber 12 rises rapidly, pushing the annular slider 22 to slide downward in the annular groove 21. The annular slider 22 drives the arc-shaped connecting plate 181 to move downward. The arc-shaped connecting plate 181 drives the float 19 to descend synchronously through the second connecting block 192. During the descent of the float 19, the seawater inside the storage chamber 15 is gradually discharged through the water inlet pipe 151. The gravity of the escape capsule 11 weakens, and as the buoyancy increases, the escape capsule 11 slowly rises.

[0061] When the arc-shaped connecting plate 181 moves downward, it drives the L-shaped push plate 165 downward via the drive plate 163. The bottom of the L-shaped push plate 165 enters the first connecting groove 172. The drive plate 163 pushes the handle 178 downward, and the handle 178 rotates at a certain angle. The transmission gear 176 rotates accordingly, and the transmission gear 176 drives the transmission rack 177 to quickly disengage from the slot 166. The escape capsule 11 unlocks instantly and slowly rises until it is completely separated from the fixing block 17 and floats to the surface. At this time, the diver can safely enter the decompression chamber 14 for decompression treatment to ensure that the body adapts to the surface environment and avoid the risk of decompression sickness. The connecting pipe 24 is equipped with a valve. Opening the valve can inject fresh air into the decompression chamber 14 to maintain the internal oxygen concentration and ensure the diver's breathing needs.

[0062] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims and not by the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An emergency decompression and isolation device for underwater construction, comprising: The escape pod consists of a sliding rail and an escape pod. A slider is installed on the outer surface of the escape pod, and the escape pod is slidably connected to the sliding rail via the slider. The escape capsule is characterized by having, from top to bottom, a pressure regulating chamber, a power chamber, a decompression chamber, and a storage chamber. The power chamber is equipped with a compressor, which is connected to the pressure regulating chamber and the decompression chamber via pipes. The escape capsule has a water inlet pipe at the bottom, which is connected to the interior of the storage chamber. A first electronic valve is installed on the water inlet pipe. A buoyancy component is installed inside the storage chamber. An arc-shaped groove is opened inside the escape capsule, which is connected to the interior of the storage chamber and the air pressure regulating chamber. A transmission component is installed inside the arc-shaped groove, which is connected to the buoyancy component. A control panel is installed inside the decompression chamber, which is connected to the first electronic valve signal and the compressor control. Connecting pipes are installed on the outer periphery of the escape capsule. The escape capsule has an annular groove inside, which is connected to an arc-shaped groove. The escape capsule also has a connecting channel inside, one end of which is connected to the interior of the air pressure regulating chamber, and the other end of which is connected to the annular groove. The transmission component includes an arc-shaped connecting plate that is slidably disposed inside an arc-shaped groove, an annular slider that is slidably disposed inside the annular groove, and the top of the arc-shaped connecting plate being connected to the annular slider; The buoyancy component is a float plate installed inside the storage chamber. The float plate has a cylindrical plate structure and is hollow inside. The escape capsule has a second connecting groove inside. One end of the second connecting groove is connected to the inside of the storage chamber, and the other end of the second connecting groove is connected to the inside of the arc-shaped groove. A second connecting block is slidably installed inside the second connecting groove. The bottom of the arc-shaped connecting plate is connected to the second connecting block. The compressor increases the air pressure inside the pressure regulating chamber, which in turn drives the transmission component to move downward inside the arc-shaped groove. The transmission component then drives the buoyancy component to expel the water from the storage chamber, allowing the escape capsule to float upward.

2. The emergency decompression and isolation device for underwater construction according to claim 1, characterized in that: An exhaust pipe is installed on the outer periphery of the escape pod. A second electronic valve is installed on the exhaust pipe and is connected to the control panel. The exhaust pipe is connected to the inside of an annular groove. The inside of the annular groove is equipped with a sealing structure to prevent seawater from entering the pressure regulating chamber.

3. The emergency decompression and isolation device for underwater construction according to claim 2, characterized in that: A connecting frame is installed on the outer periphery of the escape capsule, and an entry pipe is installed on the outer periphery of the escape capsule. The entry pipe is connected to the interior of the decompression chamber, and a cover is provided on the entry pipe.

4. The emergency decompression and isolation device for underwater construction according to claim 3, characterized in that: The sealing structure includes a sealing ring installed on the top of the annular slider, a sealing ring installed inside the annular groove, and a sealing groove adapted to the sealing ring being opened at the bottom of the sealing ring.

5. An emergency decompression and isolation device for underwater construction according to claim 4, characterized in that: The bottom of the slide rail is equipped with a fixing plate for placing the escape pod. The fixing plate is provided with fixing blocks spaced back and forth. The outer circumference of the escape pod is provided with first connecting blocks spaced back and forth. The bottom of the first connecting block is equipped with a connecting plate. The fixing block is provided with an opening at the top and a receiving groove. The fixing block is provided with a self-locking device inside, which is used to lock the connecting plate inside the receiving groove.

6. An emergency decompression and isolation device for underwater construction according to claim 5, characterized in that: The fixing block has a third sliding groove inside, which is connected to the receiving groove. A transmission rack is slidably mounted inside the third sliding groove. The end of the transmission rack facing the connecting plate has a first inclined surface that gradually increases in height from left to right. The end of the connecting plate facing the transmission rack has a second inclined surface that gradually increases in height from bottom to top. The first inclined surface and the second inclined surface are adapted to each other. The connecting plate has a slot adapted to the transmission rack. The fixing block has a reset member inside, which is connected to the transmission rack. The reset member is used to drive the transmission rack to move towards the connecting plate.

7. An emergency decompression and isolation device for underwater construction according to claim 6, characterized in that: The fixed block has a movable groove inside, which is connected to the third sliding groove. A movable block is slidably disposed inside the movable groove and is connected to the transmission rack. The reset member is a spring connected to the movable block, and the end of the spring away from the movable block is connected to the inner wall of the movable groove. The fixed block has a rotating groove inside, which is connected to the interior of the third sliding groove. A driving member is disposed inside the rotating groove and is connected to the transmission rack. The driving member is used to push the transmission rack out of the slot.

8. An emergency decompression and isolation device for underwater construction according to claim 7, characterized in that: The driving component is a transmission gear that is rotatably mounted inside a rotating slot via a bearing. The transmission gear meshes with a transmission rack. A throttle handle is mounted on the transmission gear. A first connecting slot with an upper opening is opened inside the fixed block. A driving component is provided inside the first connecting slot. The driving component is used to drive the throttle handle to rotate.

9. An emergency decompression and isolation device for underwater construction according to claim 8, characterized in that: The first connecting block has a first sliding groove inside, which is connected to an arc-shaped groove. A drive plate is slidably disposed inside the first sliding groove, and the drive plate is connected to the arc-shaped connecting plate. The first connecting block has a second sliding groove, which is connected to the first sliding groove. An L-shaped push plate is slidably disposed on the second sliding groove. One end of the L-shaped push plate is inserted into the first sliding groove and connected to the drive plate. The bottom of the L-shaped push plate is adapted to the first connecting groove.

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