An underwater metal rubber and plastic connector assembly

Abstract

This utility model relates to an underwater metal-rubber-plastic connector assembly, including a plug body, a metal threaded sleeve, and a socket body. The plug body includes an external elastic body, a plug housing connected to the external elastic body, an internal elastic body located inside the plug housing, a socket body on the internal elastic body, and a watertight cable on the external elastic body and connected to the socket body. The metal threaded sleeve is movably mounted on the plug housing. The socket body includes a socket housing with a first threaded post, a socket elastic body inside the socket housing, a pin on the socket elastic body, and a socket wire on the socket elastic body and connected to the pin. The metal threaded sleeve is connected to the first threaded post, and the internal elastic body is pressed against the socket elastic body. This connector assembly has better waterproof performance, insulation performance, and service life. It also features a simple overall structure, ease of manufacturing, high cost-effectiveness, and ease of use.

Description

Technical Field

[0001] This utility model relates to an underwater waterproof connector assembly, and more particularly to an underwater metal rubber and plastic connector assembly. Background Technology

[0002] Marine exploration places high demands on the operating depth and service life of underwater equipment, and waterproof connector components, as one of the important components for the normal operation of underwater equipment, are being used in an increasingly wide range of fields, including underwater engineering machinery, work tools, underwater lighting, underwater cameras, underwater power distribution systems, shallow water assembly devices, offshore oil extraction platforms, and seabed observation networks.

[0003] The mainstream rubber watertight connector assemblies in China use a single rubber adhesive for sealing and waterproofing, which results in poor watertightness, poor insulation performance, and short service life.

[0004] Furthermore, due to the harsh environment of the deep sea, the difficulty of construction, and the high cost of sea trials, ensuring a reliable connection between connectors becomes even more important. Utility Model Content

[0005] To address the above problems, this utility model provides an underwater metal rubber-plastic connector assembly, the specific technical solution of which is as follows: An underwater metal-rubber connector assembly includes a plug body, a metal threaded sleeve, and a socket body. The plug body includes an external plug elastomer, a plug housing connected to the external plug elastomer, an internal plug elastomer disposed inside the plug housing, a socket body disposed on the internal plug elastomer, and a watertight cable disposed on the external plug elastomer and connected to the socket body. The metal threaded sleeve is movably disposed on the plug housing. The socket body includes a socket housing with a first threaded post, a socket elastomer disposed inside the socket housing, a pin disposed on the socket elastomer, and a socket wire disposed on the socket elastomer and connected to the pin. The metal threaded sleeve is connected to the first threaded post, and the internal plug elastomer is pressed against the socket elastomer.

[0006] Preferably, the socket housing has a plug post at one end, and the plug's internal elastic body has an annular plug groove at one end. The plug post is inserted into the plug groove to form a sealed connection.

[0007] Preferably, the end of the socket housing is provided with a rubber layer, which is used to contact the internal elastomer of the plug to achieve a seal.

[0008] Preferably, the socket housing is provided with a second threaded post.

[0009] Furthermore, a sealing ring is also provided on the socket housing.

[0010] Furthermore, the socket housing is provided with a hexagonal base.

[0011] Preferably, the plug has a recessed structure on its internal elastic body, and the socket has a protruding structure on its elastic body, with the protruding structure inserted into the recessed structure.

[0012] Furthermore, the outer elastic body of the plug is provided with a positioning boss, which is positioned opposite to the recessed structure.

[0013] Preferably, the socket elastomer is provided with a sealing boss, and the sealing boss is located on the pin; The plug has a sealing socket on its internal elastic body, the socket body is located inside the sealing socket, and the sealing boss is inserted into the sealing socket.

[0014] Compared with the prior art, the present invention has the following beneficial effects: The underwater metal rubber and plastic connector assembly provided by this utility model uses elastomers for both the exterior and interior of the plug, and the interior of the socket is also made of elastomers. This allows the plug and socket to form a good seal after mating, achieving better waterproofing. It also has good insulation properties, improving service life. Furthermore, the overall structure is simple, easy to manufacture, cost-effective, and easy to use. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the plug body; Figure 2 This is a cross-sectional view of the plug body; Figure 3 This is a side view of the plug body; Figure 4 This is a structural diagram of the socket body; Figure 5 This is a cross-sectional view of the socket body; Figure 6 This is a side view of the socket body. Detailed Implementation

[0016] The present invention will now be further described with reference to the accompanying drawings.

[0017] like Figures 1 to 6As shown, an underwater metal rubber-plastic connector assembly includes a plug body 1, a metal screw sleeve 3, and a socket body 4. The plug body 1 includes an external elastic body 11, a plug housing 12, an internal elastic body 13, a socket body 2, and a watertight cable 7. The external elastic body 11 is connected to the plug housing 12. The internal elastic body 13 is disposed inside the plug housing 12 and connected to the external elastic body 11. The socket body 2 is disposed inside the internal elastic body 13 and electrically connected to the conductor inside the watertight cable 7. The outer sheath of the watertight cable 7 is sealed to the external elastic body 11. The metal screw sleeve 3 is movably mounted on the plug housing 12. The socket body 4 includes a socket housing, a socket elastic body 42, pins 5, and a socket wire 6. One end of the socket housing has a first threaded post 41, and the other end has a hexagonal base 45. The socket elastic body 42 is located inside the socket housing, and the pins 5 are located inside the socket elastic body 42 and electrically connected to the socket wire 6. The connection between the socket wire 6 and the pins 5 is located inside the socket elastic body 42, while the other end of the socket wire 6 is located outside the socket elastic body 42 for easy connection to equipment. A metal threaded sleeve 3 connects to the first threaded post 41, and the internal elastic body 13 of the plug is pressed against the socket elastic body 42 to achieve a seal. The socket body 2 corresponds one-to-one with the pins 5.

[0018] The external elastic body 11 of the plug achieves a sealed connection between the watertight cable 7 and the internal elastic body 13 of the plug, improving the sealing performance of the plug body 1 and enhancing its insulation. When the socket elastic body 42 abuts against the plug elastic body, it effectively forms a seal, improving the overall sealing and insulation performance of the connector assembly, thereby extending its service life.

[0019] To further improve sealing performance and waterproof rating, the socket housing has a plug post 43 at its end, forming a stepped shape with the socket housing. The end of the internal elastic body 13 of the plug has an annular plug groove 14, which matches the plug post 43. Since the plug groove 14 is located on the internal elastic body 13 of the plug, its diameter can be slightly smaller than the diameter of the plug post 43. When the plug body 1 and the socket body 4 are mated, the plug post 43 is inserted into the plug groove 14, forming an interference fit, thus creating a reliable sealed connection. This achieves a second seal between the plug body 1 and the socket body 4, effectively ensuring sealing performance and improving waterproof and insulation performance.

[0020] To improve the sealing between the socket housing and the internal elastomer 13 of the plug, a rubber layer is provided at the end of the socket housing. This rubber layer contacts the internal elastomer 13 of the plug to achieve a seal. The rubber layer is disposed on the plug post 43 and the socket housing, forming a rubber-coated structure, which improves the sealing performance after the plug body 1 and the socket body 4 are mated.

[0021] To facilitate the connection between the socket body 4 and the underwater equipment hull, a second threaded post 44 is provided at the other end of the socket housing. The second threaded post 44 is inserted into the hull and fixed to the hull with a nut, while the socket wire 6 is located inside the hull and connects to the equipment inside the hull. To improve the sealing between the socket body 4 and the hull, a sealing ring 8 is also provided at the opposite end of the socket housing and the hull. The sealing ring 8 is installed in the sealing groove of the socket housing.

[0022] To facilitate the connection between the socket body 4 and the housing, a hexagonal base 45 is provided on the socket housing, which is convenient for fixing with a wrench.

[0023] To prevent the pins 5 from being inserted incorrectly into the socket body 2, the end of the internal elastic body 13 of the plug has a recessed structure 15, and the end of the socket elastic body 42 has a protruding structure 46. The protruding structure 46 matches the recessed structure 15. When the plug body 1 and the socket body 4 are connected, the protruding structure 46 is inserted into the recessed structure 15. If the insertion direction is incorrect, the protruding structure 46 cannot be inserted into the recessed structure 15, causing the socket body 4 and the plug body 1 to fail to connect, effectively preventing incorrect insertion.

[0024] To improve the sealing between the socket and the socket body 2, a sealing boss 47 is provided on the socket elastic body 42, and the sealing boss 47 is located on the pin 5; a sealing socket 16 is provided on the inner elastic body 13 of the plug, and the socket body 2 is located in the sealing socket 16. When the plug body 1 and the socket body 4 are connected, the sealing boss 47 is inserted into the end of the sealing socket 16 to achieve the sealing of the sealing socket 16, that is, to achieve the sealing between the socket body 2 and the pin 5, forming a third seal, which can prevent water ingress to the greatest extent, greatly improve the overall sealing performance and insulation performance, and effectively ensure the reliability of underwater equipment operation.

[0025] Multiple seals enhance sealing performance, significantly improving waterproofing, insulation, and reliability, while also extending service life. It exhibits excellent watertightness and resistance to environmental aging, withstands pressure up to 4500m underwater, and can be wet-plugged at a depth of 110 meters without power, meeting the requirements for deep-sea applications.

[0026] The socket wire 6 is made of silver-plated wire.

[0027] The external elastomer 11 of the plug, the internal elastomer 13 of the plug, and the socket elastomer 42 can be made of rubber or TPU.

[0028] The plug housing 12 and the socket housing are plastic shells made of engineering plastic.

[0029] Watertight cable 7 is a rubber cable.

[0030] Preparation process: Mold preparation: Clean the mold cavity and corresponding mold core thoroughly; spray mold release agent onto the surface of the mold cavity and mold core and clean it thoroughly.

[0031] Parts preparation: the surface of pin 5 is accurately measured and marked, and then surface treated; the surface of socket body 2 is accurately measured and marked, and then surface treated; the surfaces of plug housing 12 and socket housing need to be coated with rubber and accurately measured and marked, and then surface treated; the outer sheath of loose wires is removed from the loose wire ends.

[0032] Vulcanization: The plug housing 12 and socket body 2 are placed in a pre-designed mold, and the rubber material is then placed in an injection molding machine for injection molding and vulcanization to form the internal elastomer 13 of the plug; the metal screw sleeve 3 is fitted into the plug housing 12, and the core wire of the watertight cable 7 is welded to the socket body 2. The prepared semi-finished product is then placed in a pre-designed mold, and finally the rubber material is placed in an injection molding machine for injection molding and vulcanization to form the plug body 1; the socket housing is fitted into the prepared loose wire, the loose wire core wire is welded to the pin 5, placed in a pre-designed mold, and the rubber material is then placed in an injection molding machine for injection molding and vulcanization to form the socket body 4.

[0033] The technical principles of this utility model have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this utility model and should not be construed as limiting the scope of protection of this utility model in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this utility model without inventive effort, and these embodiments will all fall within the protection scope of the claims of this utility model.

Claims

1. An underwater metal-rubber connector assembly, comprising a plug body (1), a metal threaded sleeve (3), and a socket body (4), characterized in that, The plug body (1) includes an external elastic body (11), a plug shell (12) connected to the external elastic body (11), an internal elastic body (13) disposed inside the plug shell (12), a socket body (2) disposed on the internal elastic body (13), and a watertight cable (7) disposed on the external elastic body (11) and connected to the socket body (2). The metal screw sleeve (3) is movably disposed on the plug shell (12). The socket body (4) includes a socket shell with a first threaded post (41), a socket elastic body (42) disposed inside the socket shell, a pin (5) disposed on the socket elastic body (42), and a socket wire (6) disposed on the socket elastic body (42) and connected to the pin (5). The metal threaded sleeve (3) is connected to the first threaded post (41), and the internal elastic body (13) of the plug is pressed against the socket elastic body (42).

2. An underwater metal to rubber connector assembly according to claim 1, wherein, The socket housing has a plug post (43) at one end, and the plug internal elastic body (13) has an annular plug groove (14) at one end. The plug post (43) is inserted into the plug groove (14) to form a sealed connection.

3. An underwater metal to rubber connector assembly according to claim 1, wherein, The socket housing has a rubber layer at its end, which is used to contact the internal elastomer (13) of the plug to achieve a seal.

4. An underwater metal to rubber connector assembly according to claim 1, wherein, The socket housing is provided with a second threaded post (44).

5. An underwater metal to rubber connector assembly according to claim 4, wherein, The socket housing is also provided with a sealing ring (8).

6. An underwater metal to rubber connector assembly according to claim 4, wherein, The socket housing is provided with a hexagonal base (45).

7. An underwater metal to rubber connector assembly according to any one of claims 1 to 6, wherein, The plug has a recessed structure (15) on its internal elastic body (13) and a protruding structure (46) on its socket elastic body (42). The protruding structure (46) is inserted into the recessed structure (15).

8. An underwater metal to rubber connector assembly according to claim 7, wherein, The plug has a positioning boss (18) on its external elastic body (11), and the positioning boss (18) is positioned opposite to the recessed structure (15).

9. An underwater metal to rubber connector assembly according to any one of claims 1 to 6, wherein, The socket elastic body (42) is provided with a sealing boss (47), and the sealing boss (47) is located on the pin (5); the plug internal elastic body (13) is provided with a sealing socket (16), the socket body (2) is located in the sealing socket (16), and the sealing boss (47) is inserted into the sealing socket (16).

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