Double-sealing structure based on underwater vehicle shell

Abstract

The utility model relates to a double-sealing structure based on an underwater vehicle shell, the double-sealing structure is designed based on the joint of each cabin body unit in the underwater vehicle shell, the double-sealing structure comprises a fixed cover plate and a cylinder, the fixed cover plate is arranged at one end of the cylinder, the cylinder is the inner wall part of the underwater vehicle shell and is made of a structural steel pipe, and the structural steel pipe is arranged on the inner wall part of the underwater vehicle shell. Meanwhile, a watertight connector is arranged at the center of the fixed cover plate, and a double-layer O-shaped sealing ring and an inner threaded hole for fixing are arranged on the matching surface of the extended front end of the fixed cover plate; a movable cover plate is arranged at the other end of the cylinder, the outer diameter of the movable cover plate is assembled and matched with a sealing surface at the rear end of the cylinder, an O-shaped sealing ring is arranged between the matching surfaces, and meanwhile, an assembly hole corresponding to the watertight connector and a screw hole for fastening are formed in the center of the movable cover plate. According to the double-sealing structure, a concave-convex matching structure of the module is adopted, sealing is achieved through two O-shaped sealing rings in the radial direction, and fixing is achieved through corresponding screws in the radial direction.

Description

Technical Field

[0001] The utility model relates to the technical field of ship submersibles, in particular to a double sealing structure based on an underwater submersible shell. Background Art

[0002] The development and utilization of marine resources necessitates extensive use of underwater vehicles to collect information on hydrological parameters, geological features, and other aspects of the ocean. Consequently, the watertight reliability of these vehicles during operation is of great concern, and the sealing design of their hull structures is particularly important. Underwater vehicles typically utilize a split-body structure, primarily consisting of a guidance cabin, measurement and communications cabin, battery compartment, control cabin, and propulsion cabin. The main potential risks of underwater sealing are concentrated in the joints between the cabins. Improving the sealing design of underwater vehicle hull structures and enhancing their reliability is an ongoing research topic. Utility Model Content

[0003] To solve the above technical problems, the present invention provides a double sealing structure based on the shell of an underwater submersible. The double sealing structure is designed based on the connection of each cabin unit in the shell of the underwater submersible, and includes a fixed cover plate and a cylinder. The fixed cover plate is arranged at one end of the cylinder, wherein the cylinder is the inner wall part of the submersible shell and is made of a structural steel pipe. The mating surface between the fixed cover plate and the cylinder is annularly welded by argon arc welding and the gap is filled. At the same time, a watertight connector is provided at the center of the fixed cover plate, and a double-layer O-ring and an internal threaded hole for fixing are provided on the extended front end mating surface of the fixed cover plate.

[0004] A movable cover is provided at the other end of the cylinder. The outer diameter of the movable cover is assembled with the sealing surface at the rear end of the cylinder, and an O-ring is provided between the fitting surfaces. At the same time, an assembly hole corresponding to the watertight connector and a screw hole for fastening are provided at the center of the movable cover.

[0005] In one embodiment of the present invention, the submersible shell is divided into a guidance cabin, a measurement and communication cabin, a battery cabin / control cabin, and a propulsion cabin according to its functions. Although the sizes and shapes of the various functional cabins are different, the double sealing structure used between the functional cabins is the same structure, which is convenient for modular design.

[0006] In one embodiment of the present invention, the movable cover plate is matched with a watertight connector in cooperation with a radial O-ring to achieve size adjustment of the independent cabin and ensure watertight design requirements.

[0007] In one embodiment of the present invention, after being sealed and assembled, each functional compartment is electrically connected via a watertight connector, and communication information transmission is achieved between them.

[0008] The above-mentioned technical solution of the present invention offers the following advantages over existing technologies: The dual-seal structure described in the present invention divides the underwater vehicle shell into multiple compartments with independent sealing capabilities. One end of each compartment is connected to the outside by a watertight connector, while the other end has a movable cover plate that is radially sealed with an O-ring. This is then connected to the outside by a watertight connector at the center of the movable cover plate. The compartments utilize a concave-convex fitting structure and are radially sealed with two O-rings, secured radially with corresponding screws. This repetitive process completes the assembly and connection of the underwater vehicle shell, providing dual-seal protection for the functional units installed in each compartment. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to make the content of the present invention more clearly understood, the present invention is further described in detail below based on specific embodiments of the present invention in conjunction with the accompanying drawings.

[0010] Figure 1 This is a structural diagram of the underwater submersible shell in the utility model;

[0011] Figure 2 This is a schematic diagram of the double sealing structure of a typical cabin of the utility model;

[0012] Figure 3 This is a conceptual diagram of the connection between adjacent typical cabins of the present invention.

[0013] As shown in the figure, 1. Guidance cabin, 2. Measurement and communication cabin, 3. Battery cabin / control cabin, 4. Propulsion cabin, 5. Fixed cover, 6. Cylinder, 7. Movable cover, 8. O-ring, 9. Watertight connector. DETAILED DESCRIPTION

[0014] like Figure 1 As shown, this embodiment provides a dual-seal structure based on the underwater vehicle housing. The housing is functionally divided into a guidance compartment 1, a measurement and communication compartment 2, a battery compartment / control compartment 3, and a propulsion compartment 4. While the individual compartments vary in size and shape, the dual-seal structure employed by these compartments is identical, facilitating modular design. After sealed assembly, the compartments are electrically connected via watertight connectors 9 to enable communication and information transfer between them.

[0015] Specifically, the guidance cabin 1 is at the head of the underwater vehicle. Therefore, the front end of the guidance cabin is in a sealed state, and only the sealing structure of the rear end of the typical cabin is required, such as Figure 1 shown.

[0016] The measurement and communication cabin 2 is a typical cabin structure, such as Figure 2 shown.

[0017] The battery compartment / control compartment 3 is a typical compartment structure, such as Figure 2 shown.

[0018] The propulsion cabin 4 is located at the tail of the underwater vehicle. At its tail end is an integrated propulsion mechanism (motor and propeller, etc.). It only requires the sealing structure of the front end of the typical cabin, such as Figure 1 shown.

[0019] like Figure 2 As shown, the double sealing structure is designed based on the connection of each cabin unit in the shell of the underwater submersible, including a fixed cover plate 5 and a cylinder 6. The fixed cover plate 5 is provided at one end of the cylinder 6, wherein the cylinder 6 is the inner wall part of the submersible shell and is made of a structural steel pipe. The mating surface between the fixed cover plate 5 and the cylinder 6 is annularly welded by argon arc welding and the gap is filled. At the same time, a watertight connector 9 is provided at the center of the fixed cover plate 5, and a double-layer O-ring 8 and an internal threaded hole for fixing are provided on the extended front end mating surface of the fixed cover plate 5.

[0020] A movable cover plate 7 is provided at the other end of the cylinder 6. The outer diameter of the movable cover plate 7 is assembled with the sealing surface at the rear end of the cylinder 6, and an O-ring 8 is provided between the fitting surfaces. At the same time, an assembly hole corresponding to the watertight connector 9 and a screw hole for fastening are provided at the center of the movable cover plate 7.

[0021] like Figure 3 As shown, the movable cover plate 7 is matched with the watertight connector 9 in cooperation with the radial O-ring 8 to achieve the size adjustment of the independent cabin and ensure the watertight design requirements.

[0022] The double sealing structure of this embodiment is to measure and communicate with the cabin 2 according to the Figure 2 For example, install two watertight connectors 9 into place at the center holes of the fixed cover plate 5 and the movable cover plate 7, and secure them with the corresponding screws. Apply an appropriate amount of grease to the radial sealing groove of the movable cover plate 7, then insert the O-ring 8. Then, push the movable cover plate 7 into the mating surface at the rear end of the measurement and communication cabin 2 and secure it in place. Similarly, place the assembled movable cover plate 7 into the mating surface at the rear end of the guidance cabin 1 and the battery cabin / control cabin 3 and secure it in place. Assemble the watertight connectors 9 to the fixed cover plates 5 at the front end of the battery cabin / control cabin 3 and the propulsion cabin 4, respectively, and secure them with the corresponding screws.

[0023] Further, press Figure 1 As shown, apply an appropriate amount of grease to the sealing groove on the front mating surface of the measurement and communication cabin 2 and insert the O-ring 8 into the sealing groove. Following the same assembly process, insert the O-ring 8 into the sealing groove on the front mating surface of the battery cabin / control cabin 3 and propulsion cabin 4.

[0024] After docking the watertight connectors 9 (watertight connectors) of the guidance cabin 1 and the measurement and communication cabin 2, insert the front end of the measurement and communication cabin 2's mating surface into the rear end of the guidance cabin 1 and secure it radially with the corresponding screws. Following the same assembly process, the battery / control cabin 3 is assembled to the measurement and communication cabin 2, and the propulsion cabin 4 is assembled to the battery / control cabin 3, thus completing the assembly of the underwater vehicle shell.

[0025] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A double sealing structure based on the shell of an underwater submersible, wherein the double sealing structure is designed based on the connection between each cabin unit in the shell of the underwater submersible, and is characterized in that: The invention comprises a fixed cover plate (5) and a cylinder (6), wherein the fixed cover plate (5) is arranged at one end of the cylinder (6), wherein the cylinder (6) is the inner wall part of the submersible shell and is made of a structural steel pipe, and the mating surfaces between the fixed cover plate (5) and the cylinder (6) are annularly welded by argon arc welding and the gap is filled, and at the same time, a watertight connector (9) is provided at the center of the fixed cover plate (5), and a double-layer O-ring (8) and an internal threaded hole for fixing are provided on the extended front end mating surface of the fixed cover plate (5); The other end of the cylinder (6) is provided with a movable cover plate (7), the outer diameter of the movable cover plate (7) is assembled with the sealing surface of the rear end of the cylinder (6), and an O-ring (8) is provided between the fitting surfaces. At the same time, the center of the movable cover plate (7) is provided with an assembly hole corresponding to the watertight connector (9) and a screw hole for fastening.

2. The double sealing structure according to claim 1, characterized in that: The submersible shell is divided into a guidance cabin (1), a measurement and communication cabin (2), a battery cabin / control cabin (3), and a propulsion cabin (4) according to their functions. Although the sizes and shapes of the various functional cabins are different, the double sealing structure used between the functional cabins is the same.

3. The double sealing structure according to claim 1, characterized in that: The movable cover plate (7) is matched with a watertight connector (9) in cooperation with a radial O-ring (8) to achieve size adjustment of the independent cabin.

4. The double sealing structure according to claim 2, characterized in that: After being sealed and assembled, each functional compartment is electrically connected via a watertight connector (9).

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