An emergency pressure relief device for sightseeing submersibles

Abstract

This utility model provides an emergency pressure relief device for a sightseeing submersible, including a submersible, a chamber, an outer shell, and an active pressure relief assembly. The active pressure relief assembly includes a pipe and a hydraulically driven valve. The chamber is located inside the submersible, the pipe passes through the chamber's exhaust port, the pipe is connected to the outer shell, and one end of the pipe is connected to the hydraulically driven valve. The hydraulically driven valve opens when pressure relief is needed, allowing air in the chamber to be discharged to the outside. This utility model relates to the field of sightseeing submersibles. By installing a pipe at the chamber's exhaust port and equipping the end of the pipe with a hydraulically driven valve, the hydraulically driven valve can open quickly when pressure relief is needed, allowing air inside the chamber to be directly discharged to the outside, resulting in a short response time and high pressure relief efficiency.

Description

Technical Field

[0001] This utility model relates to the field of sightseeing submersibles, specifically to an emergency pressure relief device for sightseeing submersibles. Background Technology

[0002] As a specialized piece of equipment used for underwater tourism and scientific research, sightseeing submersibles typically have an interior cabin that serves as the living space for the crew. This cabin requires a pressure-resistant hull to maintain a certain air pressure and oxygen concentration. During descents and operations, the cabin pressure may rise due to changes in external pressure, equipment malfunctions, or other unforeseen circumstances. When the cabin pressure exceeds the designed safety value, it can easily lead to structural damage to the cabin and even endanger the lives of the crew.

[0003] In existing technologies, some submersibles use manually controlled vent valves for pressure relief, but these suffer from drawbacks such as operational lag and slow response speed. Other devices have complex structures, are inconvenient to maintain, and are difficult to implement for rapid response in emergency situations. Therefore, how to reliably and quickly relieve pressure when the internal pressure of a submersible rises abnormally has become a pressing technical problem that needs to be solved in this field. Utility Model Content

[0004] According to an embodiment of the present invention, an emergency pressure relief device for sightseeing submersibles is provided to solve the above-mentioned problems existing in the prior art.

[0005] In a first aspect, an emergency pressure relief device for a sightseeing submersible is provided.

[0006] The sightseeing submersible uses an emergency pressure relief device, which includes the submersible, cabin, outer shell, and active pressure relief assembly;

[0007] The active pressure relief assembly includes a pipe body and a hydraulically driven valve;

[0008] The chamber is located inside the submersible, the pipe passes through the exhaust port of the chamber, the pipe is connected to the outer shell, and one end of the pipe is connected to the hydraulic drive valve;

[0009] The hydraulically driven valve opens when pressure relief is needed, allowing air in the compartment to be released to the outside for pressure relief.

[0010] Preferably, it also includes a passive pressure relief component and a vent.

[0011] The passive pressure relief assembly is disposed inside the housing, and the vent is disposed on the side of the housing;

[0012] The passive depressurization assembly can actively depressurize when the internal pressure of the cabin exceeds a predetermined value.

[0013] Preferably, the passive pressure relief assembly includes a plug and a stop;

[0014] The plug can seal the exhaust port of the compartment. The plug is slidably connected to the inner wall of the outer shell. The inner wall of the plug is slidably connected to the outer wall of the pipe. The stop block is connected to the pipe.

[0015] Preferably, the passive pressure relief assembly further includes an annular baffle, which is connected to the sealing device.

[0016] Preferably, the passive pressure relief assembly further includes a spring, which is disposed on the outside of the pipe body, and the stop block is connected to the spring.

[0017] Preferably, the outer wall of the annular baffle is slidably connected to the inner wall of the outer shell.

[0018] Preferably, when the blockage is at its lowest position, the annular baffle can block the vent.

[0019] Preferably, it also includes a filter screen disposed within the air vents.

[0020] One or more technical solutions provided in this application have at least the following technical effects or advantages:

[0021] This utility model provides an emergency pressure relief device for sightseeing submersibles. By installing a pipe at the chamber exhaust port and equipping the end of the pipe with a hydraulically driven valve, the hydraulically driven valve can be opened quickly when pressure relief is needed, so that the air inside the chamber can be directly discharged to the outside. It has a short response time and high pressure relief efficiency.

[0022] It should be understood that the description in this utility model description section is not intended to limit the key or essential features of the embodiments of this utility model, nor is it intended to restrict the scope of this utility model. Other features of this utility model will become readily apparent from the following description. Attached Figure Description

[0023] The above and other features, advantages, and aspects of the various embodiments of the present invention will become more apparent from the accompanying drawings and the following detailed description. In the drawings, the same or similar reference numerals denote the same or similar elements, wherein:

[0024] Figure 1 A schematic diagram of the connection structure of an emergency pressure relief device for a sightseeing submersible according to an embodiment of the present invention is shown.

[0025] Figure 2 An exploded view of an emergency pressure relief device for a sightseeing submersible according to an embodiment of the present invention is shown.

[0026] Figure 3 A schematic diagram of the connection structure of the active pressure relief component of the emergency pressure relief device for sightseeing submersible according to an embodiment of the present invention is shown.

[0027] Figure 4 An exploded structural schematic diagram of the active pressure relief assembly of an emergency pressure relief device for a sightseeing submersible according to an embodiment of the present invention is shown.

[0028] Figure 5 A schematic diagram of the connection structure of the passive pressure relief assembly of the emergency pressure relief device for sightseeing submersibles according to an embodiment of the present invention is shown.

[0029] The attached figures are labeled as follows:

[0030] 1-Submersible, 2-Cavity, 3-Outer shell, 4-Active pressure relief assembly, 401-Pipe body, 402-Hydraulic drive valve, 5-Filter screen, 6-Ventilation hole, 7-Passive pressure relief assembly, 701-Block, 702-Stop, 703-Spring, 704-Annular baffle. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0032] Furthermore, the term "and / or" in this article is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this article generally indicates that the preceding and following related objects have an "or" relationship.

[0033] like Figures 1 to 5 As shown, the emergency depressurization device for the sightseeing submersible includes a submersible 1, a chamber 2 located inside the submersible 1, an outer shell 3 covering the outside of the chamber 2, and an active depressurization assembly 4 for achieving active depressurization.

[0034] The active pressure relief assembly 4 includes a pipe body 401 and a hydraulically driven valve 402. The compartment 2 has an exhaust port, through which the pipe body 401 passes and is fixedly connected to the outer casing 3 to form a stable gas passage. One end of the pipe body 401 is connected to the hydraulically driven valve 402, which is mounted on the pipe body 401 and used to control the connection and isolation between the compartment 2 and the outside world.

[0035] Under normal operating conditions, the hydraulically driven valve 402 is in the closed state, ensuring the sealing and stability of compartment 2. When the air pressure inside the compartment exceeds the safe value or in case of emergency depressurization, the hydraulically driven device drives the hydraulically driven valve 402 to open. At this time, the air inside compartment 2 is discharged to the outside through pipe 401, thereby achieving rapid depressurization and ensuring the safety of compartment 2 and its occupants.

[0036] In this embodiment, by installing a pipe 401 at the exhaust port of chamber 2 and a hydraulically driven valve 402 on the pipe 401, controlled rapid depressurization can be achieved while maintaining the chamber's airtightness. This device has a simple structure, is highly responsive, and is suitable for the safety protection of sightseeing submersibles in emergency situations.

[0037] In this embodiment, the emergency pressure relief device also includes a passive pressure relief component 7 and a vent 6. The vent 6 is located on the side wall of the housing 3 and is used to allow gas to be discharged during passive pressure relief.

[0038] The passive pressure relief component 7 is located inside the outer shell 3. It is used to automatically open the pressure relief channel when the air pressure in the compartment 2 exceeds the preset safety value, thereby passively relieving the pressure in the compartment 2.

[0039] Specifically, the passive pressure relief assembly 7 includes a plug 701, a stop block 702, a spring 703, and an annular baffle 704.

[0040] The seal 701 is used to seal the exhaust port of the compartment 2. The outer wall of the seal 701 is slidably connected to the inner wall of the outer shell 3. At the same time, the inner wall of the seal 701 is also slidably connected to the outer wall of the pipe 401 to ensure that it can move relative to the pipe 401.

[0041] The stop block 702 is fixedly connected to the pipe body 401 and is used to restrict the movement position of the block 701.

[0042] Spring 703 is located on the outside of tube 401, between plug 701 and stop 702. Plug 701 is in the initial position of sealing the exhaust port of compartment 2 under the action of spring 703.

[0043] The annular baffle 704 is fixedly connected to the plug 701, and the outer wall of the annular baffle 704 is slidably connected to the inner wall of the outer shell 3. When the plug 701 is in the lowest position, the annular baffle 704 can block the vent 6, thereby preventing water or impurities from entering the compartment.

[0044] In addition, a filter screen 5 is installed inside the vent 6 to prevent foreign objects from entering the chamber 2 during depressurization, ensuring the unobstructed and clean exhaust passage.

[0045] When the device is in operation, if the pressure inside chamber 2 exceeds a preset value, the gas pressure acting on the plug 701 is greater than the elastic force of the spring 703. The plug 701 then overcomes the resistance of the spring 703 and moves upward, opening the exhaust port and causing the annular baffle 704 to move upward, thus opening the vent 6. At this time, the high-pressure gas inside chamber 2 can be discharged through the vent 6, achieving passive depressurization. As the internal pressure decreases to a safe range, the spring 703 resets the plug 701 and the annular baffle 704, and the vent 6 is blocked again, restoring the seal.

[0046] By setting up the aforementioned passive pressure relief component 7, even if the hydraulic drive valve 402 fails to open in time or the hydraulic system malfunctions, the chamber 2 can be automatically depressurized, thereby further improving the safety and reliability of the submersible.

[0047] The specific embodiments described above do not constitute a limitation on the scope of protection of this utility model. Those skilled in the art should understand that various modifications, combinations, sub-combinations, and substitutions can be made according to design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. An emergency pressure relief device for a sightseeing submersible, characterized in that, It includes a submersible (1), a cabin (2), an outer shell (3), and an active depressurization assembly (4); The active pressure relief assembly (4) includes a pipe body (401) and a hydraulically driven valve (402); The chamber (2) is located inside the submersible (1), the tube (401) passes through the exhaust port of the chamber (2), the tube (401) is connected to the outer shell (3), and one end of the tube (401) is connected to the hydraulic drive valve (402); The hydraulically driven valve (402) opens when pressure relief is required, and the air in the chamber (2) is discharged to the outside to relieve pressure.

2. The emergency pressure relief device for sightseeing submersibles according to claim 1, characterized in that, It also includes a passive pressure relief assembly (7) and a vent (6); The passive pressure relief assembly (7) is disposed inside the housing (3), and the vent (6) is disposed on the side of the housing (3); The passive pressure relief assembly (7) is capable of actively relieving pressure when the pressure inside the compartment (2) exceeds a predetermined value.

3. The emergency pressure relief device for sightseeing submersibles according to claim 2, characterized in that, The passive pressure relief assembly (7) includes a plug (701) and a stop (702); The plug (701) can seal the exhaust port of the compartment (2). The plug (701) is slidably connected to the inner wall of the outer shell (3). The inner wall of the plug (701) is slidably connected to the outer wall of the pipe (401). The block (702) is connected to the pipe (401).

4. The emergency pressure relief device for sightseeing submersibles according to claim 3, characterized in that, The passive pressure relief assembly (7) further includes an annular baffle (704) connected to the plug (701).

5. The emergency pressure relief device for sightseeing submersibles according to claim 3, characterized in that, The passive pressure relief assembly (7) also includes a spring (703), which is disposed on the outside of the tube body (401), and the stop (702) is connected to the plug (701) via the spring (703).

6. The emergency pressure relief device for sightseeing submersibles according to claim 4, characterized in that, The outer wall of the annular baffle (704) is slidably connected to the inner wall of the outer shell (3).

7. The emergency pressure relief device for sightseeing submersibles according to claim 6, characterized in that, When the blockage (701) is at its lowest position, the annular baffle (704) can block the vent (6).

8. The emergency pressure relief device for sightseeing submersibles according to claim 2, characterized in that, It also includes a filter screen (5), which is disposed within the vent hole (6).

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