High-waterproof-grade connector suitable for underwater vehicle

Abstract

The invention discloses a high-waterproof-grade connector suitable for an underwater vehicle, and relates to the technical field of water guide and sealing connector structures. The plug corresponds to the socket; the self-locking mechanism is arranged on the outer side of the joint of the socket and the plug; the mounting device is movably arranged in the middle of the socket; the positioning device is movably arranged in the middle of the plug and corresponds to the mounting device; the outer locking device is fixed on the outer side of the socket; and the inner locking device is fixed on the outer side of the plug and corresponds to the inner wall of the outer locking device. According to the invention, a multi-stage fixed sealing structure integrating self-locking clamping, elastic assembly pre-tightening and ball annular groove sealing is adopted, so that the waterproof performance and the structural stability of the connector in a high-pressure water environment are comprehensively improved, and the long-term reliability requirement of deepwater operation is met.

Description

Technical Field

[0001] The present invention relates to the technical field of watertight connector structures, and more particularly to a high-watertight connector suitable for underwater vehicles. Background Art

[0002] When underwater vehicles operate in deepwater, their connectors must withstand high-pressure water environments and maintain a stable electrical connection. However, conventional underwater connectors often rely on a single fastening method (such as threaded locking or simple snap-on fasteners). Over time, these connectors can become loose or lose their seals due to water pressure fluctuations and mechanical vibration, leading to poor contact and water seepage, seriously impacting the reliability and operational safety of the vehicle. While some existing connectors employ a primary sealing structure, these lack multi-level protection mechanisms, making them difficult to meet the stringent requirements of high waterproof ratings. Performance degradation is particularly common in complex underwater operating conditions. Therefore, there is a need for a highly waterproof connector suitable for underwater vehicles to address the issues outlined in the background art. Summary of the Invention

[0003] To achieve the above-mentioned object, the present invention provides the following technical solution: a high-waterproof connector suitable for underwater vehicles, comprising:

[0004] socket;

[0005] Plug, corresponding to the socket;

[0006] A self-locking mechanism is provided on the outside of the connection between the socket and the plug;

[0007] A mounting device, movably arranged in the middle of the socket;

[0008] A positioning device is movably arranged in the middle of the plug and corresponds to the mounting device;

[0009] an external locking device fixed to the outside of the socket;

[0010] The inner locking device is fixed on the outer side of the plug and corresponds to the inner wall of the outer locking device.

[0011] Furthermore, preferably, the self-locking mechanism includes:

[0012] Two groups of arc-shaped bayonet holes are provided corresponding to the socket and the plug, and each group is provided with a plurality of arc-shaped bayonet holes distributed in an annular manner. Each group of arc-shaped bayonet holes is respectively provided between the socket and the outer locking device, and between the plug and the inner locking device;

[0013] A plurality of card blocks are provided in an annular distribution, fixed on the outer walls of the socket and the plug, and spaced apart from the arc-shaped bayonet. The arc-shaped bayonet and the card blocks on the socket and the plug are staggered.

[0014] Furthermore, preferably, the installation device includes:

[0015] A mounting base, slidably disposed in the center of the socket;

[0016] The sockets are provided with a plurality of sockets distributed in an annular manner and fixed on the mounting base at one end close to the plug;

[0017] A first movable shaft is slidably disposed in the socket and fixedly connected to the other end of the mounting base;

[0018] The first elastic component is fixedly connected to the first movable shaft and the inner wall of the socket.

[0019] Furthermore, preferably, the positioning device includes:

[0020] A fixed seat is slidably arranged at the center of the plug and is rotatably connected to the plug;

[0021] The terminal is fixed on the end of the fixing base close to the socket and corresponds to the socket;

[0022] A second movable shaft is slidably disposed in the plug and fixedly connected to the other end of the fixed base;

[0023] One end of the second elastic component is fixedly connected to the inner wall of the plug, and the other end is rotatably connected to the second movable shaft. The structure of the second elastic component is the same as that of the first elastic component.

[0024] Furthermore, preferably, the first elastic component includes:

[0025] a fixing ring, fixed to the inner wall of the socket;

[0026] The connecting ring is fixed on one end of the first movable shaft away from the socket, and a compression spring is fixed between the fixing ring and the connecting ring.

[0027] Furthermore, preferably, the external locking device includes:

[0028] A fixing assembly fixed to the outer wall of the socket and the self-locking mechanism;

[0029] A limiting ring is fixed to an end of the fixing assembly close to the plug;

[0030] The movable adjustment component is movably arranged on the outer wall of the fixed component and is located on a side of the limiting ring away from the plug.

[0031] Furthermore, preferably, the fixing assembly includes:

[0032] A fixed cylinder is fixed to the outer wall of the socket and the self-locking mechanism;

[0033] A convex ring is fixed on the outer wall of the fixed cylinder at one end away from the plug;

[0034] A plurality of communicating ring holes are provided in an annular distribution, and are arranged on one end of the fixed cylinder close to the plug and on the side of the limiting ring close to the convex ring;

[0035] The ball is arranged in the communicating ring hole through the movement of the retaining frame, and the communicating ring hole is arranged in the retaining frame in a rolling manner.

[0036] Furthermore, preferably, the movement and adjustment component includes:

[0037] a return spring, one end of which is fixed to the side of the raised ring on the fixed assembly;

[0038] The movable ring body is slidably arranged between the upper convex ring and the limiting ring of the fixed cylinder body, and is fixedly connected with the other end of the reset spring.

[0039] Furthermore, preferably, the inner locking device comprises:

[0040] The closed cylinder has an inner wall fixed to the outside of the positioning device and the self-locking mechanism, and an outer wall corresponding to the inner wall of the external locking device;

[0041] The annular groove is fixed on the closed cylinder and corresponds to the ball in the fixed assembly.

[0042] Compared with the prior art, the present invention has the following beneficial effects:

[0043] In the present invention, the arc-shaped bayonet disposed in the self-locking mechanism cooperates with the clamping block to rotate and lock, thereby achieving dual fixation of the socket and the plug in the axial and circumferential directions, effectively resisting loosening caused by deep water pressure and vibration;

[0044] Through the coordinated compression and rebound of the first elastic component and the second elastic component in the mounting device and the positioning device, the terminal and the socket are pushed into close contact during connection to avoid poor contact, and after the external force is removed, the socket and the plug are pulled in the opposite direction to ensure that the self-locking mechanism is fully engaged;

[0045] The cooperation between the ball in the outer locking device and the annular groove of the inner locking device forms a secondary mechanical seal after connection to prevent moisture from penetrating through the gap;

[0046] The integrated design of a multi-stage fixed sealing structure with self-locking snap-in, elastic component pre-tightening, and ball ring groove sealing comprehensively improves the waterproof performance and structural stability of the connector in high-pressure water environments, adapting to the long-term reliability requirements of deepwater operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0047] Figure 1 This is a schematic diagram of the overall structure of a high-waterproof connector suitable for underwater vehicles;

[0048] Figure 2 It is a schematic diagram of the self-locking mechanism and the installation device structure;

[0049] Figure 3 It is a structural diagram of the self-locking mechanism and the positioning device;

[0050] Figure 4 is a schematic diagram of the elastic component structure;

[0051] Figure 5 It is a schematic diagram of the structure of the outer locking device and the inner locking device;

[0052] Figure 6 It is a schematic diagram of the structure of the fixed component and the movable adjustment component;

[0053] In the figure: 1. socket; 2. plug; 3. self-locking mechanism; 4. mounting device; 5. positioning device; 6. external locking device; 7. internal locking device; 31. arc-shaped bayonet; 32. block; 41. mounting seat; 42. socket; 43. first movable axis; 44. first elastic component; 51. fixed seat; 52. terminal; 53. second movable axis; 54. second elastic component; 61. fixed component; 62. limiting ring; 63. movable adjustment component; 71. closed cylinder; 72. annular groove; 441. fixed ring; 442. compression spring; 443. connecting ring; 611. fixed cylinder; 612. convex ring; 613. connecting ring hole; 614. ball; 631. reset spring; 632. movable ring body. DETAILED DESCRIPTION

[0054] See also Figures 1 to 6 In an embodiment of the present invention, a high waterproof connector suitable for an underwater vehicle includes:

[0055] Socket 1;

[0056] Plug 2, corresponding to socket 1;

[0057] A self-locking mechanism 3 is provided on the outside of the connection between the socket 1 and the plug 2;

[0058] The mounting device 4 is movably arranged in the middle of the socket 1;

[0059] The positioning device 5 is movably arranged in the middle of the plug 2 and corresponds to the mounting device 4;

[0060] An external locking device 6, fixed to the outside of the socket 1;

[0061] The inner locking device 7 is fixed on the outer side of the plug 2 and corresponds to the inner wall of the outer locking device 6 .

[0062] In this embodiment, the self-locking mechanism 3 includes:

[0063] Two groups of arc-shaped bayonet holes 31 are provided corresponding to the socket 1 and the plug 2, and each group is provided with a plurality of arc-shaped bayonet holes 31 distributed in an annular manner. Each group of the arc-shaped bayonet holes 31 is respectively provided between the socket 1 and the external locking device 6, and between the plug 2 and the internal locking device 7;

[0064] There are multiple clamping blocks 32 distributed in an annular manner, fixed on the outer walls of the socket 1 and the plug 2, and spaced apart from the arc-shaped bayonet 31. The arc-shaped bayonet 31 and the clamping blocks 32 on the socket 1 and the plug 2 are staggered.

[0065] That is to say, when the plug 2 moves toward the socket 1 for connection, the arc-shaped bayonet 31 and the block 32 on the plug 2 move along the intervals between the arc-shaped bayonet 31 and the block 32 on the outer wall of the socket 1, and at the same time, the mounting device 4 and the positioning device 5 fit together for fixed connection. Then, when the plug 2 is rotated, the arc-shaped bayonet 31 and the block 32 on the plug 2 are engaged with the corresponding block 32 and arc-shaped bayonet 31 on the socket 1, thereby fixing the socket 1 and the plug 2.

[0066] In this embodiment, the installation device 4 includes:

[0067] A mounting seat 41 is slidably disposed at the center of the socket 1;

[0068] The sockets 42 are provided with a plurality of annular distributions and are fixed on the mounting base 41 at one end close to the plug 2;

[0069] A first movable shaft 43 is slidably disposed in the socket 1 and fixedly connected to the other end of the mounting base 41;

[0070] The first elastic component 44 is fixedly connected to the first movable shaft 43 and the inner wall of the socket 1 .

[0071] In this embodiment, the positioning device 5 includes:

[0072] A fixing seat 51 is slidably disposed at the center of the plug 2 and is rotationally connected to the plug 2;

[0073] Terminal 52, fixed to the end of the fixing base 51 close to the socket 1, corresponding to the socket 42;

[0074] The second movable shaft 53 is slidably disposed in the plug 2 and fixedly connected to the other end of the fixing base 51;

[0075] One end of the second elastic component 54 is fixedly connected to the inner wall of the plug 2 , and the other end is rotatably connected to the second movable shaft 53 . The second elastic component 54 has the same structure as the first elastic component 44 .

[0076] That is to say, when the plug 2 moves toward the socket 1 for connection, the fixing seat 51 first fits against the mounting seat 41. As the plug 2 continues to move and under the joint action of the first elastic component 44 and the second elastic component 54, the terminal 52 is fixedly connected to the socket 42. Then the plug 2 continues to move, so that the self-locking mechanism 3 on the plug 2 and the socket 1 moves to the corresponding position. Then the plug 2 is rotated. At this time, the fixing seat 51 is fixedly connected to the socket 42 through the terminal 52 and remains in a fixed state. The plug 2 drives the second elastic component 54 to rotate at the end of the second moving shaft 53 until the corresponding arc-shaped bayonet 31 and the card block 32 are engaged with each other. Then the thrust on the plug 2 is removed, and the first elastic component 44 and the second elastic component 54 rebound, pulling the plug 2 and the socket 1 to move in the opposite direction to form a fixed engagement, and pushing the mounting seat 41 and the fixing seat 51 to continue to move toward the middle, so that the mounting seat 41 and the fixing seat 51 are tightly connected, protecting the terminal 52 and the socket 42.

[0077] In this embodiment, the first elastic component 44 includes:

[0078] A fixing ring 441 is fixed to the inner wall of the socket 1;

[0079] The connecting ring 443 is fixed on one end of the first movable shaft 43 away from the socket 42 , and a compression spring 442 is fixed between the fixing ring 441 and the connecting ring 443 .

[0080] That is to say, when the plug 2 moves toward the socket 1, the fixing seat 51 and the mounting seat 41 are first fitted together. During the continuous movement, the first movable shaft 43 pushes the connecting ring 443 in the first elastic component 44 to move. Under the restriction of the fixing ring 441, the compression spring 442 is compressed. Similarly, the second movable shaft 53 pushes the connecting ring 443 in the second elastic component 54 to move. Under the restriction of the fixing ring 441, the compression spring 442 is compressed. When the plug 2 is rotated, the arc-shaped bayonet 31 and the bayonet are engaged. When the blocks 32 are engaged with each other, the plug 2 drives the connecting ring 443 to rotate on the second movable shaft 53 through the fixing ring 441. After the arc-shaped bayonet 31 and the block 32 are engaged with each other, the force applied to the plug 2 is removed. Under the joint action of the compression spring 442 in the first elastic component 44 and the second elastic component 54, the mounting seat 41 and the fixing seat 51 continue to apply thrust toward the middle, maintaining a tight connection between the two, and pushing the socket 1 and the plug 2 to move outward, so that the arc-shaped bayonet 31 and the block 32 are completely fixed.

[0081] In this embodiment, the external locking device 6 includes:

[0082] A fixing assembly 61 is fixed to the outer wall of the socket 1 and the self-locking mechanism 3;

[0083] A limiting ring 62 is fixed to the end of the fixing assembly 61 close to the plug 2;

[0084] The movable adjustment component 63 is movably arranged on the outer wall of the fixed component 61 and is located on a side of the limiting ring 62 away from the plug 2 .

[0085] That is to say, when the plug 2 moves toward the socket 1 for connection, the movable adjustment component 63 moves on the fixed component 61 toward the end away from the plug 2, so that the plug 2 is fixedly connected to the socket 1, and then the movable adjustment component 63 moves and resets on the fixed component 61, and the outside of the plug 2 is fixed and sealed for a second time through the internal locking device 7.

[0086] In this embodiment, the fixing assembly 61 includes:

[0087] The fixed cylinder 611 is fixed on the outer wall of the socket 1 and the self-locking mechanism 3;

[0088] The protruding ring 612 is fixed to the outer wall of the fixed cylinder 611 at the end away from the plug 2;

[0089] A plurality of communicating ring holes 613 are provided in an annular distribution and are provided on the end of the fixed cylinder 611 close to the plug 2 and on the side of the limiting ring 62 close to the convex ring 612;

[0090] The ball 614 is arranged in the communication ring hole 613 by being moved by the retaining frame, and the communication ring hole 613 is arranged in the retaining frame in a rolling manner.

[0091] In this embodiment, the movement and adjustment component 63 includes:

[0092] A return spring 631, one end of which is fixed to the side of the protruding ring 612 on the fixing assembly 61;

[0093] The movable ring body 632 is slidably disposed between the convex ring 612 on the fixed cylinder 611 and the limiting ring 62 , and is fixedly connected to the other end of the return spring 631 .

[0094] In this embodiment, the inner locking device 7 includes:

[0095] The closed cylinder 71 has an inner wall fixed to the outside of the positioning device 5 and the self-locking mechanism 3, and an outer wall corresponding to the inner wall of the external locking device 6;

[0096] The annular groove 72 is fixed on the closed cylinder 71 and corresponds to the ball 614 in the fixed assembly 61 .

[0097] That is to say, when the plug 2 moves toward the socket 1 for connection, the movable ring 632 is pushed to slide on the fixed cylinder 611 toward the position of the convex ring 612, compressing the return spring 631, and then the plug 2 drives the closed cylinder 71 to move toward the socket 1. While the mounting device 4 and the positioning device 5 are fixedly connected to each other, the closed cylinder 71 pushes the ball 614 to rotate, and the ball 614 moves outward on the connecting ring hole 613, so that the outer side of the closed cylinder 71 is completely fitted with the inner side of the fixed cylinder 611, and at the same time When the annular groove 72 moves to the side of the connecting ring hole 613 close to the middle of the fixed cylinder 611, after the plug 2 is fixedly connected to the socket 1, the plug 2 and the socket 1 move synchronously to the outside, thereby moving the annular groove 72 to the connecting ring hole 613 on the fixed cylinder 611, and then the movable ring body 632 is released. Under the action of the return spring 631, the movable ring body 632 moves and pushes the ball 614 to rotate while moving toward the inside of the connecting ring hole 613, and is stuck in the annular groove 72, thereby performing a secondary fixed seal between the socket 1 and the plug 2.

[0098] In the specific implementation, first push the movable ring body 632 on the fixed cylinder 611 to slide toward the position of the convex ring 612 to compress the reset spring 631, and then move the plug 2 toward the socket 1. During the movement, under the joint action of the first elastic component 44 and the second elastic component 54, the terminal 52 is fixedly connected to the socket 42, and then the fixed seat 51 is fitted with the mounting seat 41, and then the first movable shaft 43 pushes the connecting ring 443 in the first elastic component 44 to move. Under the restriction of the fixed ring 441, the compression spring 442 is compressed. The second movable shaft 53 pushes the connecting ring 443 in the second elastic component 54 to move. Under the restriction of the fixed ring 441, the compression spring 442 is compressed until the corresponding arc-shaped bayonet 31 and the block 32 move to the corresponding position. At the same time, during the movement of the plug 2, the closed cylinder 71 pushes the ball 614 to rotate, and the ball 614 moves outward on the connecting ring hole 613, so that the outer side of the closed cylinder 71 is completely fitted with the inner side of the fixed cylinder 611, and the annular groove 72 moves to the connecting ring hole 613 close to the inner side of the fixed cylinder 611. Fix one side of the middle of the cylinder 611, and then rotate the plug 2 so that the arc-shaped bayonet 31 and the block 32 are engaged with each other, that is, the plug 2 drives the connecting ring 443 to rotate on the second movable shaft 53 through the fixing ring 441. After the arc-shaped bayonet 31 and the block 32 are engaged with each other, the force acting on the plug 2 is removed. Under the joint action of the compression spring 442 in the first elastic component 44 and the second elastic component 54, the plug 2 and the socket 1 are pulled to move in opposite directions to form a fixed engagement. At the same time, the mounting base 41 and the fixing base 51 are pushed to continuously apply thrust toward the middle, so that The mounting base 41 and the fixed base 51 are tightly connected to protect the terminal 52 and the socket 42. At the same time, during the reverse movement of the plug 2, the annular groove 72 moves to the connecting ring hole 613 on the fixed cylinder 611, and then the movable ring body 632 is released. Under the action of the reset spring 631, the movable ring body 632 moves to push the ball 614 to rotate while moving toward the inner side of the connecting ring hole 613 and getting stuck in the annular groove 72, performing a secondary fixed seal between the socket 1 and the plug 2, thereby improving the waterproofness of the connector through multi-stage fixed sealing.

[0099] The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A high-waterproof connector suitable for underwater vehicles, characterized by: include: socket(1); A plug (2) corresponding to the socket (1); A self-locking mechanism (3) is provided outside the connection between the socket (1) and the plug (2); A mounting device (4) is movably arranged in the middle of the socket (1); A positioning device (5) is movably arranged in the middle of the plug (2) and corresponds to the mounting device (4); An external locking device (6) fixed to the outside of the socket (1); The inner locking device (7) is fixed on the outer side of the plug (2) and corresponds to the inner wall of the outer locking device (6).

2. A high-waterproof connector suitable for underwater vehicles according to claim 1, characterized in that: The self-locking mechanism (3) comprises: Two groups of arc-shaped bayonet holes (31) are provided corresponding to the socket (1) and the plug (2), and each group is provided with a plurality of arc-shaped bayonet holes (31) distributed in an annular manner. Each group of the arc-shaped bayonet holes (31) is respectively provided between the socket (1) and the outer locking device (6), and between the plug (2) and the inner locking device (7); A plurality of card blocks (32) are provided in an annular distribution, fixed on the outer walls of the socket (1) and the plug (2), and spaced apart from the arc-shaped card slot (31). The arc-shaped card slot (31) and the card blocks (32) on the socket (1) and the plug (2) are both staggered.

3. The high waterproof connector suitable for underwater vehicles according to claim 1, characterized in that: The installation device (4) comprises: A mounting seat (41) slidably disposed at the center of the socket (1); A plurality of sockets (42) are provided in an annular distribution and are fixed to one end of the mounting base (41) close to the plug (2); A first movable shaft (43) is slidably disposed in the socket (1) and fixedly connected to the other end of the mounting seat (41); The first elastic component (44) is fixedly connected to the first movable shaft (43) and the inner wall of the socket (1).

4. The high waterproof connector suitable for underwater vehicles according to claim 3, characterized in that: The positioning device (5) comprises: A fixed seat (51) is slidably disposed at the center of the plug (2) and is rotationally connected to the plug (2); A terminal (52) is fixed to one end of the fixing base (51) close to the socket (1) and corresponds to the socket (42); A second movable shaft (53) is slidably disposed in the plug (2) and fixedly connected to the other end of the fixed seat (51); The second elastic component (54) has one end fixedly connected to the inner wall of the plug (2) and the other end rotatably connected to the second movable shaft (53), and the second elastic component (54) has the same structure as the first elastic component (44).

5. The high waterproof connector suitable for underwater vehicles according to claim 4, characterized in that: The first elastic component (44) comprises: A fixing ring (441) fixed to the inner wall of the socket (1); The connecting ring (443) is fixed to one end of the first movable shaft (43) away from the socket (42), and a compression spring (442) is fixed between the fixing ring (441) and the connecting ring (443).

6. The high waterproof connector suitable for underwater vehicles according to claim 1, characterized in that: The external locking device (6) comprises: A fixing assembly (61) fixed to the outer wall of the socket (1) and the self-locking mechanism (3); A limiting ring (62) is fixed to one end of the fixing assembly (61) close to the plug (2); The movable adjustment component (63) is movably arranged on the outer wall of the fixed component (61) and is located on a side of the limiting ring (62) away from the plug (2).

7. The high waterproof connector suitable for underwater vehicles according to claim 6, characterized in that: The fixing assembly (61) comprises: A fixed cylinder (611) is fixed to the outer walls of the socket (1) and the self-locking mechanism (3); A convex ring (612) is fixed to the outer wall of the fixed cylinder (611) at one end away from the plug (2); A plurality of communicating ring holes (613) are provided in an annular distribution and are arranged on one end of the fixed cylinder (611) close to the plug (2) and on one side of the limiting ring (62) close to the convex ring (612); The ball (614) is arranged in the communicating ring hole (613) by being moved by the retaining frame, and the communicating ring hole (613) is arranged in a rolling manner in the retaining frame.

8. The high waterproof connector suitable for underwater vehicles according to claim 7, characterized in that: The movement adjustment component (63) includes: a return spring (631), one end of which is fixed to the side of the raised ring (612) on the fixed assembly (61); The movable ring body (632) is slidably arranged between the upper convex ring (612) and the limiting ring (62) of the fixed cylinder (611), and is fixedly connected to the other end of the return spring (631).

9. The high waterproof connector suitable for underwater vehicles according to claim 7, characterized in that: The inner locking device (7) comprises: A closed cylinder (71) has an inner wall fixed to the outside of the positioning device (5) and the self-locking mechanism (3), and an outer wall corresponding to the inner wall of the outer locking device (6); The annular groove (72) is fixed on the closed cylinder (71) and corresponds to the ball (614) in the fixed assembly (61).

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