Pressure-resistant shell subsection connecting structure for underwater vehicle

Abstract

The utility model discloses a pressure-resistant shell subsection connecting structure for an underwater vehicle, which comprises a first shell, a second shell is attached to the first shell, internal threads are arranged on the inner wall of the first shell and the inner wall of the second shell, connecting seats are in threaded connection with the internal threads, two groups of movable cabins are symmetrically arranged on the outer walls of the connecting seats, and the movable cabins are in threaded connection with the inner walls of the first shell and the second shell. The connecting seat is arranged between the first shell and the second shell, so that the first shell and the second shell are screwed on the connecting seat through the internal threads, and the inserting block is pushed by the restoring force of the spring to reset and slide in the movable bin and is inserted into the inserting groove, so that the purpose of connecting the first shell and the second shell is achieved; the pressure-resistant shell can be divided into a plurality of independent modules or segments through the segment connecting structure, each module or segment can be independently manufactured, tested and replaced, and the modular design not only reduces the manufacturing difficulty and cost, but also improves the convenience of maintenance and replacement.

Description

Technical Field

[0001] The utility model relates to the technical field of underwater vehicles, in particular to a pressure-resistant shell segmented connection structure for underwater vehicles. Background Art

[0002] An underwater vehicle is a navigation body that sails underwater. Depending on whether it is manned or not, it can be divided into two categories: manned underwater vehicles and unmanned underwater vehicles. These vehicles can perform a variety of tasks, including underwater exploration, detection, military offense and defense, etc. The pressure hull of an underwater vehicle is the core component to ensure its safe and stable operation in an underwater environment. The pressure hull refers to a hull or structure that can withstand the huge pressure deep underwater and has good watertightness. It is the main structure of the underwater vehicle and is responsible for protecting internal equipment, instruments, personnel, etc. from damage by seawater pressure, corrosion and impact. The existing segmented connection structure of the pressure hull for underwater vehicles can basically meet daily use needs, but there are still some shortcomings that need to be improved.

[0003] The traditional pressure hull design often adopts an integral structure. Although this structure performs well in terms of strength and stability, it has limitations such as difficulty in processing, high cost, and heavy weight during the manufacturing process. At the same time, when the internal equipment of the underwater vehicle's pressure hull fails or needs to be upgraded, the integral structure makes maintenance and replacement very difficult, which not only increases maintenance costs and time, but may also affect the normal use of the underwater vehicle. For this reason, we propose a segmented connection structure for the pressure hull of an underwater vehicle to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a pressure hull segment connection structure for an underwater vehicle to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pressure-resistant shell segmented connection structure for an underwater vehicle, comprising a first shell, the first shell being fitted with a second shell, the first shell and the second shell having inner threads on their inner walls, the inner threads being threadedly connected to a connecting seat, the connecting seat having two groups of movable bins symmetrically arranged on its outer wall, the movable bins having two groups of plug-in blocks slidably connected therein, sockets being arranged on the outer walls of the first shell and the second shell at the front and rear ends of the movable bins, the sockets having slots on their surfaces on one side facing the plug-in blocks, telescopic rods being arranged on the inner walls of the two groups of plug-in blocks, springs being wound on the telescopic rods, threaded rods being arranged on the top surfaces of the plug-in blocks, threaded blocks being threadedly connected to the threaded rods, two groups of limit grooves being symmetrically arranged on the top surfaces of the movable bins, and handles being arranged on the tops of the threaded rods.

[0006] As a further preferred embodiment of the present technical solution, the front and rear end surfaces of the connecting seat are both provided with assembly grooves, and the assembly grooves are both provided with sealing rings.

[0007] As a further preferred embodiment of the present technical solution, the surface of the movable bin facing the first shell is designed in an arc shape, and the arc of the outer wall of the movable bin is equal to the arc of the outer wall of the first shell.

[0008] As a further preferred embodiment of the present technical solution, the handle is designed in a U-shaped shape, and the surface of the handle is provided with anti-slip textures.

[0009] As a further preferred embodiment of the present technical solution, a soft pad is provided on the surface of the threaded block facing the limiting groove, and the outer wall of the threaded block is ground.

[0010] As a further preferred embodiment of the present technical solution, the plug-in block is designed in a T-shape, and a through hole adapted to the plug-in block is provided in the movable compartment.

[0011] As a further preferred embodiment of the present technical solution, one end of the spring is welded to the inner wall of the plug-in block, and the other end of the spring is welded to the inner end of another group of plug-in blocks.

[0012] The utility model provides a pressure hull segment connection structure for an underwater vehicle, which has the following beneficial effects:

[0013] 1. The utility model provides a connecting seat between the first shell and the second shell, so that the first shell and the second shell are screwed on the connecting seat through internal threads, and then the restoring force of the spring is used to push the plug-in block to reset and slide in the movable bin and insert it into the slot, thereby achieving the purpose of connecting the first shell and the second shell. The pressure-resistant shell can be divided into multiple independent modules or segments through the segmented connection structure, and each module or segment can be independently manufactured, tested and replaced. This modular design not only reduces the manufacturing difficulty and cost, but also improves the convenience of maintenance and replacement.

[0014] 2. The utility model has built-in sealing rings at the front and rear ends of the connecting seat, so that the sealing rings can increase the sealing performance of the connection between the connecting seat and the first shell and the second shell, effectively preventing seawater from penetrating into the first shell or the second shell and posing a threat to the internal equipment and personnel of the first shell and the second shell, while also making it easy for staff to replace the sealing rings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0016] Figure 2 It is a schematic diagram of the first three-dimensional cross-sectional structure of the utility model;

[0017] Figure 3 It is a second three-dimensional cross-sectional structural schematic diagram of the utility model;

[0018] Figure 4 For the utility model Figure 3 A schematic diagram of the enlarged structure at point A;

[0019] Figure 5 For the utility model Figure 2 Schematic diagram of the enlarged structure at B.

[0020] In the figure: 1. first shell; 2. second shell; 3. internal thread; 4. connecting seat; 5. movable compartment; 6. plug-in block; 7. socket; 8. slot; 9. telescopic rod; 10. spring; 11. threaded rod; 12. threaded block; 13. limit groove; 14. handle; 15. assembly groove; 16. sealing ring. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0022] The utility model provides a technical solution: Figures 1 to 5 As shown, in the present embodiment, a pressure-resistant shell segmented connection structure for an underwater vehicle comprises a first shell 1, the first shell 1 is fitted with a second shell 2, internal threads 3 are provided on the inner walls of the first shell 1 and the second shell 2, a connecting seat 4 is threadedly connected to the internal threads 3, two groups of movable bins 5 are symmetrically provided on the outer wall of the connecting seat 4, two groups of plug-in blocks 6 are slidably connected in the movable bins 5, sockets 7 are provided on the outer walls of the first shell 1 and the second shell 2 at the front and rear ends of the movable bins 5, slots 8 are provided on the surface of the socket 7 facing the plug-in blocks 6, telescopic rods 9 are provided on the inner walls of the two groups of plug-in blocks 6, springs 10 are wound on the telescopic rods 9, threaded rods 11 are provided on the top surfaces of the plug-in blocks 6, threaded blocks 12 are threadedly connected to the threaded rods 11, two groups of limiting grooves 13 are symmetrically provided on the top surfaces of the movable bins 5, and handles 14 are provided on the tops of the threaded rods 11.

[0023] By setting a connecting seat 4 between the first shell 1 and the second shell 2, the first shell 1 and the second shell 2 are screwed on the connecting seat 4 through the internal thread 3, and then the threaded block 12 is threadedly rotated on the threaded rod 11, and the threaded block 12 is rotated out of the limiting groove 13, and then the restoring force of the spring 10 is used to push the plug-in block 6 to return to slide in the movable compartment 5 and insert it into the slot 8, thereby achieving the purpose of connecting the first shell 1 and the second shell 2.

[0024] In other embodiments, both the front and rear end surfaces of the connecting seat 4 are provided with assembly grooves 15, and both the assembly grooves 15 are provided with sealing rings 16;

[0025] By embedding the sealing ring 16 in the assembly groove 15, the connection seat 4 is threadedly connected with the internal threads 3 in the first shell 1 and the second shell 2, and the connection seat 4 drives the sealing ring 16 to fit tightly with the inner walls of the first shell 1 and the second shell 2, so that the sealing ring 16 increases the sealing performance of the connection between the connection seat 4 and the first shell 1 and the second shell 2, effectively preventing seawater from penetrating into the first shell 1 or the second shell 2 and posing a threat to the internal equipment and personnel of the first shell 1 and the second shell 2, and at the same time, it is convenient for the staff to replace the sealing ring 16.

[0026] In other embodiments, the surface of the movable chamber 5 facing the first shell 1 is designed in an arc shape, and the arc of the outer wall of the movable chamber 5 is equal to the arc of the outer wall of the first shell 1;

[0027] Through this design, the movable compartment 5 can achieve the purpose of positioning the first shell 1 and the second shell 2, aligning the first shell 1 with the second shell 2, and then threadedly connected to the connecting seat 4 through the internal thread 3, so that the first shell 1 is connected to the second shell 2 through the connecting seat 4, thereby facilitating the staff to connect the first shell 1 with the second shell 2.

[0028] In other embodiments, the handle 14 is designed in a square shape, and the surface of the handle 14 is provided with anti-slip textures;

[0029] This design makes it easier for workers to push the plug-in block 6 by using the handle 14, preventing the handle 14 from slipping, causing the plug-in block 6 to be pushed to its original position by the restoring force of the spring 10, and requiring the plug-in block 6 to be re-operated.

[0030] In other embodiments, a soft pad is provided on the surface of the thread block 12 facing the limiting groove 13, and the outer wall of the thread block 12 is ground;

[0031] This design can reduce direct contact between the threaded block 12 and the limiting groove 13 when the threaded block 12 is threadedly rotated on the threaded rod 11 and enters the limiting groove 13, and prevent the threaded block 12 from causing friction damage to the inner wall of the limiting groove 13 when it rotates and squeezes the limiting groove 13.

[0032] In other embodiments, the plug-in block 6 is designed in a T-shape, and a through hole adapted to the plug-in block 6 is provided in the movable compartment 5;

[0033] Through this design, the movable bin 5 can achieve the purpose of limiting the shaking of the plug-in block 6, thereby preventing the plug-in block 6 from shaking and getting stuck when sliding back and forth in the movable bin 5.

[0034] In other embodiments, one end of the spring 10 is welded to the inner wall of the plug-in block 6, and the other end of the spring 10 is welded to the inner end of another set of plug-in blocks 6;

[0035] This design can achieve the purpose of fixing the positions of both ends of the spring 10, preventing the spring 10 from sliding on the telescopic rod 9 and hitting the inner walls of the two sets of plug-in blocks 6 when the first shell 1 shakes, thereby causing noise pollution to the environment.

[0036] The utility model provides a pressure hull segment connection structure for underwater vehicles, and the specific working principle is as follows:

[0037] When in use, first place the sealing ring 16 into the assembly groove 15, then pull the two sets of handles 14, so that the handles 14 drive the plug-in block 6 to slide in the movable bin 5 through the threaded rod 11, and the plug-in block 6 slides into the movable bin 5, and at the same time, the two sets of plug-in blocks 6 squeeze the spring 10 until the threaded block 12 on the threaded rod 11 slides to align with the limiting groove 13, then rotate the threaded block 12, so that the threaded block 12 is threadedly rotated on the threaded rod 11 and turned into the limiting groove 13, and then the internal thread 3 in the first shell 1 and the second shell 2 is connected through the connecting seat 4. The threaded connection makes the first shell 1 and the second shell 2 fit tightly with the sealing ring 16 until the first shell 1 or the second shell 2 cannot be rotated. At this time, the slots 8 on the second shell 2 and the first shell 1 are aligned with the plug-in block 6. Then the threaded block 12 is rotated to make the threaded block 12 rotate on the threaded rod 11 and rotate out of the limit groove 13. The restoring force of the spring 10 is used to push the plug-in block 6 to return to slide in the movable compartment 5, and the plug-in block 6 slides into the slot 8 and abuts against the slot 8, so as to achieve the purpose of connecting the first shell 1 and the second shell 2.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pressure hull segment connection structure for an underwater vehicle, comprising a first hull (1), characterized in that: The first shell (1) is fitted with the second shell (2); the inner walls of the first shell (1) and the second shell (2) are provided with internal threads (3); the internal threads (3) are both threadedly connected to a connection seat (4); the outer wall of the connection seat (4) is symmetrically provided with two groups of movable bins (5); two groups of plug-in blocks (6) are slidably connected in the movable bins (5); sockets (7) are provided on the outer walls of the first shell (1) and the second shell (2) at the front and rear ends of the movable bins (5); a slot (8) is provided on the surface of the socket (7) on the side facing the plug-in block (6); telescopic rods (9) are provided on the inner walls of the two groups of the plug-in blocks (6); springs (10) are wound around the telescopic rods (9); the top surfaces of the plug-in blocks (6) are both provided with threaded rods (11); the threaded rods (11) are both threadedly connected to a threaded block (12); the top surfaces of the movable bins (5) are both symmetrically provided with two groups of limit grooves (13); and the tops of the threaded rods (11) are both provided with handles (14).

2. A pressure hull segment connection structure for an underwater vehicle according to claim 1, characterized in that: The front and rear end surfaces of the connection seat (4) are both provided with assembly grooves (15), and the assembly grooves (15) are both provided with sealing rings (16).

3. The pressure hull segment connection structure for an underwater vehicle according to claim 1, characterized in that: The surface of the movable bin (5) on one side facing the first shell (1) is designed in an arc shape, and the arc of the outer wall of the movable bin (5) is equal to the arc of the outer wall of the first shell (1).

4. The pressure hull segment connection structure for an underwater vehicle according to claim 1, characterized in that: The handle (14) is designed in a U-shaped shape, and a surface of the handle (14) is provided with anti-slip patterns.

5. The pressure hull segment connection structure for an underwater vehicle according to claim 1, characterized in that: A soft pad is provided on a surface of the threaded block (12) on one side facing the limiting groove (13), and an outer wall of the threaded block (12) is subjected to a grinding process.

6. The pressure hull segment connection structure for an underwater vehicle according to claim 1, characterized in that: The plug-in block (6) is designed in a T-shape, and a through hole matching the plug-in block (6) is provided in the movable compartment (5).

7. The pressure hull segment connection structure for an underwater vehicle according to claim 1, characterized in that: One end of the spring (10) is welded to the inner wall of the plug-in block (6), and the other end of the spring (10) is welded to the inner end of another group of plug-in blocks (6).

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