An underwater connector

Abstract

This application provides an underwater connector with an added mounting positioning plate. This plate not only fixes the tail of the push rod to the second end wall but also secures the side wall of the push rod to it. This provides lateral constraint on the push rod, preventing it from rotating around its own axis and reducing its sway, thus making the push rod structure more stable. Furthermore, the use of three push rods arranged in a triangular pattern, combined with the T-shaped mounting positioning plate, allows the three push rods to be more rationally arranged within a relatively small area, effectively reducing the overall size of the connector and making it more compact.

Description

Technical Field

[0001] This invention relates to the field of connectors, and more specifically to an underwater connector. Background Technology

[0002] The description in this section provides only background information related to the disclosure of this invention and does not constitute prior art.

[0003] As a link connecting underwater equipment, underwater connectors have become an irreplaceable core component in large-scale marine engineering applications such as seabed observation networks, marine resource development, national defense, salvage and rescue, and deep-sea scientific research platforms. Due to the harsh deep-sea environment, the intricate nature of underwater facilities, and the difficulty, lengthy repair cycles, and significant wear and tear after damage, underwater connectors must possess reliable sealing, corrosion resistance, and dynamic pressure compensation capabilities. These are key issues that need to be addressed in existing technologies.

[0004] It should be noted that the above description of the technical background is only for the purpose of providing a clear and complete explanation of the technical solutions of the present invention and facilitating understanding by those skilled in the art. It should not be assumed that the above technical solutions are known to those skilled in the art simply because they have been described in the background section of this invention. Summary of the Invention

[0005] The technical problem to be solved by the present invention is to provide an underwater connector.

[0006] To address the aforementioned technical problems, this application provides an underwater connector, comprising a plug assembly and a socket assembly that are interlocked. The plug assembly includes a cylindrical plug housing and a first insulating base disposed within the plug housing. The front end face of the first insulating base has at least one first mounting groove. The socket assembly includes a cylindrical socket housing and a second insulating base disposed within the socket housing. The second insulating base is movable forward along the socket housing under external force. The socket housing has a second end wall, and the second insulating base is located behind the second end wall. The rear end face of the second insulating base has at least one second mounting groove. Cylindrical roller seals are installed in both the first and second mounting grooves. The roller seals in the first and second mounting grooves are correspondingly arranged. Each roller seal includes a roller and a sealing sleeve covering the roller. The direction of the roller is perpendicular to the axial direction of the connector. A protrusion is installed on the roller, which, when moved by external force, drives the roller seal. Rotating around the roller, the first and second insulating bases have axially aligned channels. The protrusion of the roller seal extends into the channel. The socket assembly also includes a push rod assembly, which includes at least one push rod. The tail of the push rod is fixed to the second end wall. The push rod assembly also includes a mounting positioning plate, the side wall of which is fixed to the mounting positioning plate. The end of the push rod passes through the channel of the second insulating base. When the plug assembly and the socket assembly are mated, the second insulating base moves forward under the pressure of the first insulating base, and the end of the push rod extends into the channel of the first insulating base. The push rod can move the protrusion during its movement within the channel, causing the roller seal to rotate.

[0007] Preferably, the push rod assembly includes three push rods, namely a first push rod, a second push rod, and a third push rod. The tail portions of the first push rod, the second push rod, and the third push rod are respectively fixed to the second end wall by a first screw, a second screw, and a third screw. The side walls of the tail portions of the first push rod, the second push rod, and the third push rod are respectively fixedly connected to the side of the mounting positioning plate by a fourth screw, a fifth screw, and a sixth screw.

[0008] Preferably, the first push rod, the second push rod, and the third push rod are arranged in a triangular shape, and the mounting positioning plate is T-shaped. The mounting positioning plate has a horizontal rod portion and a longitudinal rod portion perpendicular to the horizontal rod portion. The left and right sides of the horizontal rod portion are fixedly connected to the tail sidewalls of the second push rod and the third push rod, respectively. The end side of the longitudinal rod portion is fixedly connected to the tail sidewall of the first push rod. The mounting positioning plate is in contact with the second end wall.

[0009] Preferably, the first insulating base is equipped with two roller seals, namely a first roller seal and a second roller seal. The first insulating base has three channels along the axial direction, namely a first channel, a second channel, and a third channel. The protrusions of the first and second roller seals extend into the first channel. The second insulating base is also equipped with two roller seals, namely a third roller seal and a fourth roller seal. When the plug assembly and the socket assembly are mated, the first roller seal mates with the fourth roller seal, and the second roller seal mates with the third roller seal. The second insulating base also has three channels along the axial direction, namely a fourth channel, a fifth channel, and a third channel. The device has six channels. The protrusion of the third roller seal extends into the fifth channel, and the protrusion of the fourth roller seal extends into the sixth channel. The first channel is axially aligned with the fourth channel, the second channel is axially aligned with the fifth channel, and the third channel is axially aligned with the sixth channel. The head of the first push rod passes through the fourth channel, the head of the second push rod passes through the fifth channel, and the head of the third push rod passes through the sixth channel. When the plug assembly and the socket assembly are mated, the first push rod extends from the fourth channel and enters the first channel, the second push rod extends from the fifth channel and enters the second channel, and the third push rod extends from the sixth channel and enters the third channel.

[0010] Preferably, the plug housing contains a plurality of first optical fiber assemblies, and the first insulating base has a plurality of second mounting holes along the axial direction, through which the first optical fiber assemblies can pass. The front end of the second mounting hole is located within the first mounting groove. The socket housing contains a plurality of second optical fiber assemblies, and the second insulating base has a plurality of fourth mounting holes along the axial direction, through which the second optical fiber assemblies can pass. The rear end of the fourth mounting hole is located within the second mounting groove. The roller seal has a plurality of parallel through holes along its radial direction, and the roller seal installed in the first mounting groove has a sealing position. The roller seal has two positions: a sealed position and an open position. When the roller seal is in the sealed position, the surface of the sealing sleeve seals the front end of the second mounting hole. When the roller seal is rotated to the open position, the through hole of the roller seal is parallel to the axial direction of the plug assembly, and the through hole of the roller seal is aligned with the second mounting hole. The roller seal installed in the second mounting groove also has a sealed position and an open position. When the roller seal is in the sealed position, the surface of the sealing sleeve seals the rear end of the fourth mounting hole. When the roller seal is rotated to the open position, the through hole of the roller seal is parallel to the axial direction of the socket assembly, and the through hole of the roller seal is aligned with the fourth mounting hole.

[0011] Preferably, the first push rod has a first recess and a second recess, the second push rod has a third recess, and the head of the third push rod has a fourth recess. During the insertion of the plug assembly into the socket assembly, the first and second recesses are respectively used to actuate the protrusions of the first and second roller seals, causing the first and second roller seals to rotate from the sealed position to the open position; the third recess is used to actuate the protrusion of the third roller seal, causing the third roller seal to rotate from the sealed position to the open position; the fourth recess is used to actuate the protrusion of the fourth roller seal, causing the fourth roller seal to rotate from the sealed position to the open position. During the removal of the plug assembly from the socket assembly, the first and second recesses are respectively used to actuate the protrusions of the first and second roller seals. The convex tabs of the roller seals allow the first and second roller seals to rotate from the open position to the sealed position. The third recess is used to actuate the convex tabs of the third roller seals, causing the third roller seals to rotate from the open position to the sealed position. The fourth recess is used to actuate the convex tabs of the fourth roller seals, causing the fourth roller seals to rotate from the open position to the sealed position. When the plug assembly and the socket assembly are mated, the roller seals in the first mounting groove and the corresponding roller seals in the second mounting groove are aligned and connected one by one. The corresponding second mounting holes, the through holes of the roller seals, and the fourth mounting holes are aligned and connected to each other, forming an axially extending optical fiber mating channel. The end of the second optical fiber assembly can pass through the optical fiber mating channel and mat with the first optical fiber assembly.

[0012] Preferably, the roller is further equipped with a torsion spring, which is used to apply a restoring force to the roller seal when the roller seal is subjected to an external force and leaves the sealing position, so that the roller seal can return to the sealing position.

[0013] Preferably, the plug housing includes a first end wall, a first insulating base located on the front side of the first end wall, and a plug cavity formed between the first insulating base and the first end wall. At least one first drain hole is provided at the location of the plug cavity in the plug housing, and the plug cavity communicates with the external environment through the first drain hole. A first support plate and a second support plate are provided inside the plug cavity, and a first spring is installed between the first and second support plates. A first pressure compensation bladder is also provided inside the plug cavity, surrounding the plug cavity. The two ends of the first spring respectively press against the first and second support plates, and the first and second support plates respectively press the first pressure compensation bladder against the front and rear end faces of the plug cavity. A sealed first oil cavity is formed inside the first pressure compensation bladder. Multiple first mounting holes are provided axially along the first end wall, and multiple second mounting holes correspond one-to-one with the multiple first mounting holes and are aligned axially. The first optical fiber assembly passes through the first mounting hole sequentially from back to front. The first optical fiber assembly has a mounting hole and a first oil chamber. The front end of the first optical fiber assembly is located in the second mounting hole. The first optical fiber assembly includes a first optical fiber, a first optical fiber tube covering the outer wall of the first optical fiber, a first optical fiber sheath covering the tail of the first optical fiber tube, and a first ceramic ferrule connected to the head of the first optical fiber. The tail end of the first ceramic ferrule is covered in the first optical fiber tube, and the outer wall of the front end of the first ceramic ferrule is covered with a ceramic sleeve. The side wall of the first optical fiber tube is sealed to the inner wall of the first mounting hole by a first optical fiber sealing ring. A first back plate is also installed on the rear side of the first end wall. The first optical fiber sheath is located on the rear side of the first back plate. The tail end of the first optical fiber tube passes through the first back plate. A return spring is also fitted on the first optical fiber tube. The return spring is located in the first mounting hole. The front end of the return spring acts on the protrusion on the outer wall of the first optical fiber tube, and the rear end acts on the first back plate. When the first optical fiber assembly is subjected to an external force and moves backward, the return spring can provide a restoring force to the first optical fiber tube.

[0014] Preferably, a socket cavity is formed between the second insulating base and the second end wall. At least one second drain hole is provided at the location of the socket housing within the socket cavity. The socket cavity communicates with the external environment through the second drain hole. The second insulating base includes a base block and a cylindrical base wall located on the front side of the base block. A compression spring is fitted over the base wall. The rear end of the compression spring acts on the front end face of the base block, and the front end of the compression spring acts on the second end wall. A sealing plate is installed at the front end of the base wall, sealing the front end of the base wall. A second oil cavity is formed within the space defined by the base wall and the sealing plate. At least one second pressure compensation bladder is provided at the rear end of the sealing plate. The outer wall of the second pressure compensation bladder is located within the second oil cavity, forming a bladder cavity. The bladder cavity communicates with the socket cavity through a channel on the sealing plate. The second pressure compensation bladder is used for... When the pressure inside the second oil cavity changes, the pressure inside and outside the second oil cavity is balanced. The second end wall is provided with multiple third mounting holes along the axial direction, and the second insulating base is provided with multiple fourth mounting holes along the axial direction. The multiple third mounting holes correspond one-to-one with the multiple fourth mounting holes and are aligned in the axial direction. The second optical fiber assembly passes through the third mounting holes and the second oil cavity from front to back. The head of the second optical fiber assembly is located in the second oil cavity. The second optical fiber assembly includes a second optical fiber, a second optical fiber tube covering the outer wall of the second optical fiber, a second optical fiber sheath covering the tail of the second optical fiber tube, and a second ceramic ferrule connected to the docking end of the second optical fiber. The outer wall of the second optical fiber tube is sealed with the hole wall of the third mounting hole by a second optical fiber sealing ring. When the plug assembly and the socket assembly are docked, the second ceramic ferrule of the second optical fiber assembly is inserted into the ceramic sleeve and docks with the first ceramic ferrule of the first optical fiber assembly.

[0015] Preferably, the second insulating base is further equipped with a retaining ring. The root of the retaining ring is fixed to the outer wall of the second insulating base, and the end of the retaining ring extends towards the plug assembly. The outer wall of the front end of the plug housing is provided with a retaining groove along the circumference. When the plug assembly and the socket assembly are mated, the plug housing is inserted into the retaining ring, and the retaining ring is engaged in the retaining groove. The inner wall of the socket housing is provided with a groove along the circumference. When the groove is located at the position corresponding to the end of the retaining ring, the groove provides a space for the retaining ring to spring outward, so that the plug housing can be inserted into the retaining ring. When the second insulating base moves to the position where the retaining ring leaves the groove, the retaining ring is held tightly by the inner wall of the socket housing and cannot spring outward. A limiting screw is also installed on the side wall of the second insulating base. The socket housing is provided with a clearance space. When the socket assembly is in a non-plugging state, the limiting screw is limited to the rear end of the clearance space. When the connector is plugged in, the limiting screw can move forward within the clearance space.

[0016] By employing the above technical solutions, the beneficial effects of the present invention are as follows:

[0017] The underwater connector of this invention incorporates a mounting positioning plate, which not only fixes the tail of the push rod to the second end wall but also securely connects the side wall of the push rod to it. This provides lateral constraint on the push rod, preventing it from rotating around its own axis and reducing its sway, thus making the push rod structure more stable. Furthermore, the use of three push rods arranged in a triangular pattern, combined with the T-shaped mounting positioning plate, allows for a more rational layout of the three push rods within a relatively small area, effectively reducing the overall size of the connector and making it more compact. Attached Figure Description

[0018] Figure 1 This is a cross-sectional structural diagram of the plug assembly of this application.

[0019] Figure 2 This is a cross-sectional structural diagram of the connector of this application when it is not plugged in.

[0020] Figure 3 This is a cross-sectional structural diagram of the connector of this application when fully inserted.

[0021] Figure 4 This is a schematic diagram of the plug assembly of this application.

[0022] Figure 5 This is a structural schematic diagram of the socket assembly of this application.

[0023] Figure 6 yes Figure 2 A magnified view of part A in the middle.

[0024] Figure 7 yes Figure 3 A magnified view of part B in the middle section.

[0025] Figure 8 yes Figure 3 A magnified view of part C in the middle.

[0026] Figure 9 This is a cross-sectional structural diagram of the socket housing and push rod assembly after installation.

[0027] Figure 10 This is a structural schematic diagram of the push rod assembly of this application.

[0028] Figure 11 This is a structural schematic diagram of the mounting and positioning plate of this application.

[0029] Figure 12 This is a schematic diagram of the push rod driven roller seal of this application.

[0030] Figure 13 This is a schematic diagram of the push rod driven roller seal of this application.

[0031] The components are: 1. Plug housing; 11. First end wall; 12. First insulating base; 13. Plug cavity; 14. First drain hole; 15. First pressure compensation bladder; 16. First oil cavity; 17. First spring; 18. First mounting hole; 19. First back plate; 110. Slot; 111. First support plate; 112. Second support plate; 121. Screw limiting groove; 122. First channel; 123. Second channel; 124. Third channel; 125. Second mounting hole;

[0032] 21. First optical fiber sheath; 22. First optical fiber tube; 23. First optical fiber channel; 24. Reset spring; 25. First optical fiber sealing ring; 26. Ceramic sleeve; 27. First ceramic ferrule;

[0033] 31. First roller seal; 311. First through hole; 32. Second roller seal; 321. Second through hole;

[0034] 41. Third roller seal; 411. Third through hole; 42. Fourth roller seal; 421. Fourth through hole;

[0035] 5. Socket housing; 51. Second end wall; 52. Second drain hole; 53. Recess space; 54. Socket cavity; 55. Second back plate; 511. Third mounting hole; 56. Groove;

[0036] 6. Second insulating base; 61. Guide screw; 62. Fourth mounting hole; 63. Base wall; 64. Second pressure compensation bladder; 65. Bladder cavity; 66. Second oil cavity; 67. Sealing plate; 68. Limiting screw; 69. Elastic retaining ring;

[0037] 7. Compression spring;

[0038] 81. Second fiber optic sheath; 82. Second fiber optic tube; 83. Second fiber optic channel; 84. Second fiber optic sealing ring; 85. Second ceramic ferrule;

[0039] 91. First push rod; 92. Second push rod; 93. Third push rod; 94. Mounting positioning plate; 911. First screw; 912. Fourth screw; 913. First rod part; 9131. First notch; 914. Second rod part;

[0040] 921, Second screw; 923, Third notch; 931, Third screw; 932, Sixth screw; 933, Fourth notch;

[0041] 941, First screw hole; 942, Second screw hole. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] It should be noted that in the description of this invention, the terms "first," "second," etc., are used only for descriptive purposes and to distinguish similar objects; there is no order between them, nor should they be construed as indicating or implying relative importance. Furthermore, in the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0044] The connector of this application includes a plug assembly and a socket assembly that can be plugged into each other. The term "front" in this application refers to the direction in which the plug assembly moves relative to the socket assembly during plugging, and vice versa. Figure 2 and 3 As shown, the socket assembly is located on the front side of the plug assembly.

[0045] like Figure 1As shown, this is the plug assembly of the present application. The plug assembly includes a plug housing 1, which is a cylindrical structure. The plug housing 1 includes a first end wall 11. A first insulating base 12 is installed inside the plug housing 1. The first insulating base 12 is located on the front side of the first end wall 11. A second insulating base 6 closes the front opening of the plug housing 1.

[0046] A plug cavity 13 is formed between the first insulating base 12 and the first end wall 11. At least one first drain hole 14 is provided in the plug housing 1 at the position of the plug cavity 13. The plug cavity 13 is connected to the external environment through the first drain hole 14.

[0047] The plug cavity 13 is provided with a first support plate 111 and a second support plate 112. A first spring 17 is installed between the first support plate 111 and the second support plate 112. A first pressure compensation bladder 15 is also provided inside the plug cavity 13, and the first pressure compensation bladder 15 is arranged around the plug cavity 13. The two ends of the first spring 17 respectively press the first support plate 111 and the second support plate 112, and the first support plate 111 and the second support plate 112 respectively press the first pressure compensation bladder 15 against the front and rear end faces of the plug cavity 13. A sealed first oil cavity 16 is formed inside the first pressure compensation bladder 15.

[0048] The first end wall 11 is provided with a plurality of first mounting holes 18 along the axial direction, and the first insulating base 12 is provided with a plurality of second mounting holes 125 along the axial direction. The plurality of second mounting holes 125 correspond one-to-one with the plurality of first mounting holes 18 and are aligned in the axial direction.

[0049] The plug assembly also includes a plurality of first optical fiber assemblies, which pass through the first mounting hole 18 and the first oil cavity 16 sequentially from back to front, and the front end of the first optical fiber assembly is located in the second mounting hole 125.

[0050] The first optical fiber assembly includes a first optical fiber (not shown in the figure), a first optical fiber tube 22 covering the outer wall of the first optical fiber, a first optical fiber sheath 21 covering the tail of the first optical fiber tube 22, and a first ceramic ferrule 27 connected to the head of the first optical fiber. The tail end of the first ceramic ferrule 27 is covered inside the first optical fiber tube 22, and the outer wall of the front end of the first ceramic ferrule 27 is covered with a ceramic sleeve 26. The side wall of the first optical fiber tube 22 is sealed to the inner wall of the first mounting hole 18 by a first optical fiber sealing ring 25.

[0051] A first backplate 19 is also installed on the rear side of the first end wall 11. The first optical fiber sheath 21 is located on the rear side of the first backplate 19. The tail of the first optical fiber tube 22 passes through the first backplate 19. A reset spring 24 is also sleeved on the first optical fiber tube 22. The reset spring 24 is located in the first mounting hole 18. The front end of the reset spring 24 acts on the protrusion of the outer wall of the first optical fiber tube 22, and the rear end acts on the first backplate 19. When the first optical fiber assembly is subjected to a backward force, it has a certain backward space. After the reset spring 24 is compressed, it can provide a rebound force to the first optical fiber tube 22.

[0052] The front end face of the first insulating base 12 has at least one first mounting groove 56, in which a cylindrical roller seal is installed, and the front end of the second mounting hole 125 is located in the first mounting groove 56.

[0053] The roller seal includes a roller and a sealing sleeve covering the roller, the sealing sleeve being made of rubber. The direction of the roller is perpendicular to the axial direction of the plug assembly. The roller seal has multiple through holes arranged parallel to each other along its radial direction. A torsion spring is mounted on the roller. A tab is also mounted on the roller.

[0054] The roller seal installed in the first mounting groove 56 has a sealing position and an open position.

[0055] When the roller seal is in the sealed position, the surface of the sealing sleeve seals the front end of the second mounting hole 125. When the roller seal rotates at an angle, it is in the open position, at which time the through hole is parallel to the axial direction of the plug assembly, and the through hole is aligned and connected to the second mounting hole 125.

[0056] In a preferred embodiment, when the roller seal is in the sealed position, the through hole is perpendicular to the axial direction of the plug assembly. When the roller seal rotates 90° along its own axial direction, it is in the open position, at which point the through hole is parallel to the axial direction of the plug assembly.

[0057] The torsion spring is used to apply a restoring force to the roller seal when the roller seal is subjected to an external force and leaves the sealing position, so that the roller seal can return to the sealing position.

[0058] like Figure 2 The diagram shown is a structural schematic of the plug assembly and socket assembly when they are not fully connected.

[0059] The socket assembly includes a socket housing 5, which is a cylindrical structure with a second end wall 51. A second insulating base 6 is installed inside the socket housing 5, located behind the second end wall 51. A socket cavity 54 is formed between the second insulating base 6 and the second end wall 51. At least one second drain hole 52 is provided at the location of the socket cavity 54 in the socket housing 5, and the socket cavity 54 communicates with the external environment through the second drain hole 52.

[0060] The second insulating base 6 includes a base block and a cylindrical base wall 63 located on the front side of the base block. A compression spring 7 is sleeved on the base wall 63. The rear end of the compression spring 7 acts on the front end face of the base block, and the front end of the compression spring 7 acts on the second end wall 51.

[0061] The second insulating base 6 can overcome the elastic force of the compression spring 7 and move forward within the socket housing 5 under the action of external force.

[0062] A sealing plate 67 is installed at the front end of the base wall 63. The sealing plate 67 seals the front end of the base wall 63, forming a second oil cavity 66 within the space defined by the base wall 63 and the sealing plate 67.

[0063] At least one second pressure compensation bladder 64 is provided at the rear end of the sealing plate 67, and the outer wall of the second pressure compensation bladder 64 is located inside the second oil cavity 66. A cavity 65 is formed inside the second pressure compensation bladder 64, and the cavity 65 communicates with the socket cavity 54 through a channel on the sealing plate 67. When the pressure inside the second oil cavity 66 changes, the second pressure compensation bladder 64 can balance the pressure inside and outside the second oil cavity 66.

[0064] The second end wall 51 is provided with a plurality of third mounting holes 511 along the axial direction, and the second insulating base 6 is provided with a plurality of fourth mounting holes 62 along the axial direction. The plurality of third mounting holes 511 and the plurality of fourth mounting holes 62 correspond one-to-one and are aligned in the axial direction.

[0065] The socket assembly also includes a plurality of second optical fiber assemblies, which pass through the third mounting hole 511 and the second oil cavity 66 from front to back. The head of the second optical fiber assembly is located in the second oil cavity 66. In another embodiment, the head of the second optical fiber assembly may also be located in the fourth mounting hole 62.

[0066] The second optical fiber assembly includes a second optical fiber (not shown in the figure), a second optical fiber tube 82 covering the outer wall of the second optical fiber, a second optical fiber sheath 81 covering the tail of the second optical fiber tube 82, and a second ceramic ferrule 85 connected to the mating end of the second optical fiber. The outer wall of the second optical fiber tube 82 is sealed to the wall of the third mounting hole 511 by a second optical fiber sealing ring 84.

[0067] The rear end face of the second insulating base 6 has at least one second mounting groove 56, in which a cylindrical roller seal is installed, and the rear end of the fourth mounting hole 62 is located in the second mounting groove 56.

[0068] The roller seal installed in the second mounting groove 56 also has a sealed position and an open position. When the roller seal is in the sealed position, the surface of the sealing sleeve seals the rear end of the fourth mounting hole 62. When the roller seal is rotated by an angle, it is in the open position, at which time the through hole is parallel to the axial direction of the socket assembly, and the through hole is aligned and connected to the fourth mounting hole 62.

[0069] In a preferred embodiment, when the roller seal is in the sealed position, the through hole is perpendicular to the axial direction of the socket assembly. When the roller seal rotates 90° along its own axial direction, it is in the open position, at which point the through hole is parallel to the axial direction of the socket assembly.

[0070] like Figure 1-2 As shown in Figure 4, two roller seals are installed on the first insulating base 12, namely the first roller seal 31 and the second roller seal 32.

[0071] The first insulating base 12 is also provided with a first channel 122, a second channel 123 and a third channel 124 along the axial direction, and the protrusions of the first roller seal 31 and the second roller seal 32 extend into the first channel 122.

[0072] like Figure 2 As shown in Figure 5, two roller seals are also installed on the second insulating base 6, namely the third roller seal 41 and the fourth roller seal 42.

[0073] When the plug assembly and the socket assembly are mated, the first roller seal 31 mates with the fourth roller seal 42, and the second roller seal 32 mates with the third roller seal 41.

[0074] When all four roller seals are in the open position, the plurality of first through holes 311 of the first roller seal 31 are axially aligned with the plurality of fourth through holes 421 of the fourth roller seal 42. The plurality of second through holes 321 of the second roller seal 32 are axially aligned with the plurality of third through holes 411 of the third roller seal 41.

[0075] The second insulating base 6 is further provided with a fourth, fifth, and sixth channel along the axial direction. The protrusion of the third roller seal 41 extends into the fifth channel, and the protrusion of the fourth roller seal 42 extends into the sixth channel. When the plug assembly and the socket assembly are mated, the first channel 122 is axially aligned with the fourth channel, the second channel 123 is axially aligned with the fifth channel, and the third channel 124 is axially aligned with the sixth channel.

[0076] like Figure 9 and 10 As shown, the socket assembly further includes a push rod assembly, which includes a first push rod 91, a second push rod 92, and a third push rod 93 arranged axially. The head of the first push rod 91 passes through the fourth channel, the head of the second push rod 92 passes through the fifth channel, and the head of the third push rod 93 passes through the sixth channel.

[0077] The tail portions of the first push rod 91, the second push rod 92, and the third push rod 93 are respectively fixed to the second end wall 51 by the first screw 911, the second screw 921, and the third screw 931.

[0078] The push rod assembly also includes a mounting positioning plate 94. The side walls of the tails of the first push rod 91, the second push rod 92 and the third push rod 93 are fixedly connected to the side of the mounting positioning plate 94 by a fourth screw 912, a fifth screw (not shown in the figure) and a sixth screw 932, respectively.

[0079] Specifically, such as Figure 10 and 11 As shown, the first push rod 91, the second push rod 92, and the third push rod 93 are arranged in a triangular shape. The mounting positioning plate 94 is T-shaped and has a horizontal rod and a vertical rod perpendicular to the horizontal rod. The left and right sides of the horizontal rod are fixedly connected to the tail sidewalls of the second push rod 92 and the third push rod 93, respectively. The end side of the vertical rod is fixedly connected to the tail sidewall of the first push rod 91.

[0080] When the first push rod 91, the second push rod 92 and the third push rod 93 are installed on the second end wall 51, the mounting positioning plate 94 is in contact with the second end wall 51.

[0081] Assuming the push rod is fixed to the second end wall 51 only by screws, with only one fixed point, if the screws loosen, the push rod can easily rotate around its own axis, causing it to malfunction. However, by adding a mounting positioning plate 94 and fixing the push rod's side wall to it, the push rod is laterally constrained, preventing rotation around its own axis and reducing wobbling, thus making the push rod's structure more stable.

[0082] In addition, the three push rods are arranged in a triangular pattern, and together with the T-shaped mounting plate 94, the three push rods can be more reasonably arranged in a relatively small area, which effectively reduces the size of the entire connector and makes the connector more compact.

[0083] like Figure 4 and 5 As shown, the front end face of the first insulating base 12 has two screw limiting grooves 121, and the rear end face of the second insulating base 6 is provided with two guide screws 61 that cooperate with the screw limiting grooves 121. When the plug assembly and the socket assembly are inserted into each other, the guide screws 61 are inserted into the corresponding screw limiting grooves 121. This structure can play a guiding role and also prevent the plug assembly and the socket assembly from rotating relative to each other.

[0084] When the guide screw 61 is inserted to the bottom of the screw limiting groove 121, the roller seals of the plug assembly and the socket assembly reach maximum compression. By pre-designing the depth of the screw limiting groove 121 and the length of the guide screw 61, the compression of the roller seal is controlled within a suitable range during actual mating, preventing excessive compression due to excessive mating force. Excessive compression of the roller seal can lead to excessive material deformation and loss of elasticity, affecting the sealing effect and causing leaks. The guide screw 61's control over compression effectively prevents such situations from occurring.

[0085] The second insulating base 6 is also equipped with a retaining ring 69. The root of the retaining ring 69 is fixed to the outer wall of the second insulating base 6, and the free end of the retaining ring 69 extends towards the plug assembly. The outer wall of the front end of the plug housing 1 is provided with a retaining groove 110 around its circumference. When the plug assembly and the socket assembly are mated, the plug housing 1 is inserted into the retaining ring 69, and the retaining ring 69 is engaged in the retaining groove 110.

[0086] like Figure 2 and 3As shown, the inner wall of the socket housing 5 has a circumferential groove 56. When the socket assembly is in a non-plugged state, the groove 56 is located at the position corresponding to the free end of the elastic retaining ring 69. When the plug housing 1 is inserted into the elastic retaining ring 69, the groove 56 provides a space for the elastic retaining ring 69 to spring outward, allowing the plug housing 1 to be smoothly inserted into the elastic retaining ring 69. When the second insulating base 6 moves forward until the elastic retaining ring 69 leaves the position of the groove 56, the elastic retaining ring 69 is held tightly by the inner wall of the socket housing and cannot spring outward. The free end of the elastic retaining ring 69 cannot disengage from the retaining groove 110, thus preventing the plug housing 1 from disengaging from the elastic retaining ring 69. At the same time, the relative position of the plug assembly and the socket assembly in the axial direction is restricted, determining the minimum compression between the roller seals and ensuring the sealing effect between the roller seals.

[0087] A limiting screw 68 is also installed on the side wall of the second insulating base 6. Correspondingly, a recess space 53 is provided on the socket housing 5. The recess space 53 can be a strip-shaped groove formed on the socket housing 5, through which the limiting screw 68 passes. When the socket assembly is in a non-plugging state, the limiting screw 68 is limited to the rear end of the strip-shaped groove, preventing the second insulating base 6 from moving further backward and detaching from the socket housing 5. When the connector is plugged in, the second insulating base 6 moves forward, and the strip-shaped groove provides the recess space 53 for the limiting screw 68.

[0088] The working process of the connector in this application is as follows:

[0089] During the process of plug assembly and socket assembly being inserted into each other

[0090] The front end of the plug housing 1 is inserted into the elastic retaining ring 69. After the elastic retaining ring 69 springs open, it is locked into the slot 110 of the plug housing 1. During this process, the groove 56 on the inner wall of the socket housing 5 provides space for the free end of the elastic retaining ring 69 to spring outward.

[0091] As the plug assembly moves toward the socket assembly, the roller seals of the plug assembly and the socket assembly press against each other. Specifically, the first roller seal 31 of the plug assembly and the fourth roller seal 42 of the socket assembly are positioned opposite each other and press against each other; the second roller seal 32 of the plug assembly and the third roller seal 41 of the socket assembly are positioned opposite each other and press against each other. Simultaneously, the guide screw 61 is inserted to the bottom of the screw limiting groove 121, and the second insulating base 6 moves forward against the elastic force of the compression spring 7 under the pressure of the plug assembly.

[0092] As the second insulating base 6 moves forward, the first push rod 91 extends from the fourth channel and enters the first channel 122. The second push rod 92 extends from the fifth channel and enters the second channel 123. The third push rod 93 extends from the sixth channel and enters the third channel 124.

[0093] The head of the first push rod 91 is provided with a first recess 9131 and a second recess (not shown in the figure). When the first push rod 91 moves in the first channel 122, the protrusions of the first roller seal 31 and the second roller seal 32 are respectively inserted into the first recess 9131 and the second recess. When the first push rod 91 extends further into the first channel 122, the protrusions of the first roller seal 31 and the second roller seal 32 are respectively moved by the first recess 9131 and the second recess. At this time, the first roller seal 31 and the second roller seal 32 rotate from the original sealing position to the open position.

[0094] The head of the second push rod 92 is provided with a third recess 923. When the second push rod 92 moves in the fifth channel, the protrusion of the third roller seal 41 is engaged in the third recess 923. When the second push rod 92 moves further, the protrusion of the third roller seal 41 is pushed by the third recess 923. At this time, the third roller seal 41 rotates from the original sealing position to the open position.

[0095] The head of the third push rod 93 is provided with a fourth recess 933. When the third push rod 93 moves in the sixth channel, the protrusion of the fourth roller seal 42 is engaged in the fourth recess 933. When the third push rod 93 moves further, the protrusion of the fourth roller seal 42 is pushed by the fourth recess 933. At this time, the fourth roller seal 42 rotates from the original sealing position to the open position.

[0096] like Figure 3 As shown, both the first roller seal 31 and the fourth roller seal 42 are in the open position. The first through hole 311 of the first roller seal 31, the fourth through hole 421 of the fourth roller seal 42, the second mounting hole 125 corresponding to the first through hole 311, and the fourth mounting hole 62 corresponding to the fourth through hole 421 are aligned with each other and interconnected, forming an axially extending optical fiber docking channel. The second roller seal 32 and the third roller seal 41 are also in the open position. The second channel 123 of the second roller seal 32, the third through hole 411 of the third roller seal 41, the second mounting hole 125 corresponding to the second through hole 321, and the fourth mounting hole 62 corresponding to the third through hole 411 are corresponding with each other and interconnected, forming an axially extending optical fiber docking channel.

[0097] The end of the second optical fiber assembly passes through the fourth mounting hole 62 and the through hole of the roller seal in sequence, and extends into the second mounting hole 125 to dock with the first optical fiber assembly located in the second mounting hole 125.

[0098] like Figure 8 The second ceramic ferrule 85 of the second optical fiber assembly is inserted into the ceramic sleeve 26 and docks with the first ceramic ferrule 27 of the first optical fiber assembly.

[0099] During the separation of the plug assembly and the socket assembly, the plug assembly is pulled out of the socket housing 5, and the second insulating base 6 moves backward under the action of the plug assembly and the elastic force of the compression spring 7.

[0100] As the second insulating base 6 moves backward, the second optical fiber assembly disengages from the through hole of the roller seal and retracts into the second oil cavity 66. The first push rod 91, the second push rod 92, and the third push rod 93 disengage from the first channel 122, the second channel 123, and the third channel 124, respectively, and retract into the fourth channel, the fifth channel, and the sixth channel.

[0101] During the process of the first push rod 91 retracting from the first channel 122, the protrusions of the first roller seal 31 and the second roller seal 32 respectively engage in the first recess 9131 and the second recess. As the first insulating base 12 further retracts, the first recess 9131 and the second recess respectively move the protrusions of the first roller seal 31 and the second roller seal 32, causing the first roller seal 31 and the second roller seal 32 to rotate, returning from the open position to the sealed position, and resealing the end of the second mounting hole 125.

[0102] When the second push rod 92 moves in the fifth channel, the protrusion of the third roller seal 41 is once again engaged in the third recess 923. As the second push rod 92 moves further, the protrusion of the third roller seal 41 is pushed by the third recess 923. At this time, the third roller seal 41 rotates and returns from the open position to the sealed position, resealing the end of the corresponding fourth mounting hole 62.

[0103] When the third push rod 93 moves in the sixth channel, the protrusion of the fourth roller seal 42 is once again engaged in the fourth recess 933. As the third push rod 93 moves further, the protrusion of the fourth roller seal 42 is pushed by the fourth recess 933. At this time, the fourth roller seal 42 rotates and returns from the open position to the sealed position, resealing the end of the corresponding fourth mounting hole 62.

[0104] When the second insulating base 6 returns to its original position, the free end of the elastic retaining ring 69 is located in the groove 56. When the plug assembly is pulled out, the elastic retaining ring 69 springs outward and disengages from the slot 110 of the plug housing 1, thereby separating the plug assembly from the socket assembly.

[0105] The above-described embodiments are merely preferred embodiments provided to fully illustrate the present invention, and the scope of protection of the present invention is not limited thereto. Equivalent substitutions or modifications made by those skilled in the art based on the present invention are all within the scope of protection of the present invention. The scope of protection of the present invention is defined by the claims.

Claims

1. An underwater connector, characterized by The connector comprises a plug assembly and a socket assembly which can be plugged into each other, The plug assembly comprises a cylindrical plug housing (1) and a first insulating base (12) arranged in the plug housing (1), the front end surface of the first insulating base (12) is provided with at least one first mounting groove, The socket assembly comprises a cylindrical socket housing (5) and a second insulating base (6) arranged in the socket housing (5), the second insulating base (6) can move forward along the socket housing (5) under the action of external force, the socket housing (5) is provided with a second end wall (51), the second insulating base (6) is located at the rear side of the second end wall (51), the rear end surface of the second insulating base (6) is provided with at least one second mounting groove, The first mounting groove and the second mounting groove are both provided with a cylindrical roller seal, the roller seal in the first mounting groove is arranged correspondingly to the roller seal in the second mounting groove, The roller seal comprises a roller and a sealing sleeve wrapped outside the roller, the direction of the roller is perpendicular to the axial direction of the connector, the roller is provided with a tab, when the tab is actuated by external force, the roller seal is rotated around the roller, The first insulating base (12) and the second insulating base (6) are provided with aligned channels in the axial direction, the tab of the roller seal extends into the channel, The socket assembly further comprises a push rod assembly, the push rod assembly comprises at least one push rod, The tail of the push rod is fixed on the second end wall (51), the push rod assembly further comprises a mounting positioning plate (94), the side wall of the push rod is fixed on the mounting positioning plate (94), and the end of the push rod extends through the channel of the second insulating base (6), When the plug assembly and the socket assembly are connected, the second insulating base (6) moves forward under the extrusion of the first insulating base (12), the end of the push rod extends into the channel of the first insulating base (12), The push rod can actuate the tab during the movement in the channel, so that the roller seal rotates.

2. The connector according to claim 1, wherein The push rod assembly comprises three push rods, namely a first push rod (91), a second push rod (92) and a third push rod (93), The tails of the first push rod (91), the second push rod (92) and the third push rod (93) are fixed on the second end wall (51) through a first screw (911), a second screw (921) and a third screw (931) respectively, and the side walls of the tails of the first push rod (91), the second push rod (92) and the third push rod (93) are fixedly connected with the side edges of the mounting positioning plate (94) through a fourth screw (912), a fifth screw and a sixth screw (932) respectively.

3. The connector of claim 2, wherein The first push rod (91), the second push rod (92) and the third push rod (93) are arranged in a T-shaped manner, and the mounting positioning plate (94) is T-shaped, and the mounting positioning plate (94) has a transverse rod part and a longitudinal rod part perpendicular to the transverse rod part, the left and right side edges of the transverse rod part are fixedly connected with the tail side walls of the second push rod (92) and the third push rod (93) respectively, and the end side edge of the longitudinal rod part is fixedly connected with the tail side wall of the first push rod (91), and the mounting positioning plate (94) is attached to the second end wall (51).

4. The connector of claim 3, wherein The first insulating base (12) is provided with two rolling shaft sealing members, namely a first rolling shaft sealing member (31) and a second rolling shaft sealing member (32), and the first insulating base (12) is provided with three channels in the axial direction, namely a first channel (122), a second channel (123) and a third channel (124), and the tabs of the first rolling shaft sealing member (31) and the second rolling shaft sealing member (32) extend into the first channel (122), The second insulating base (6) is also provided with two rolling shaft sealing members, namely a third rolling shaft sealing member (41) and a fourth rolling shaft sealing member (42), and when the plug assembly and the socket assembly are connected, the first rolling shaft sealing member (31) is connected with the fourth rolling shaft sealing member (42), and the second rolling shaft sealing member (32) is connected with the third rolling shaft sealing member (41), and the second insulating base (6) is also provided with three channels in the axial direction, namely a fourth channel, a fifth channel and a sixth channel, and the tabs of the third rolling shaft sealing member (41) extend into the fifth channel, and the tabs of the fourth rolling shaft sealing member (42) extend into the sixth channel, The first channel (122) is axially aligned with the fourth channel, the second channel (123) is axially aligned with the fifth channel, and the third channel (124) is axially aligned with the sixth channel, The head of the first push rod (91) passes through the fourth channel, the head of the second push rod (92) passes through the fifth channel, and the head of the third push rod (93) passes through the sixth channel, When the plug assembly and the socket assembly are connected, the first push rod (91) extends out of the fourth channel and into the first channel (122), the second push rod (92) extends out of the fifth channel and into the second channel (123), and the third push rod (93) extends out of the sixth channel and into the third channel (124).

5. The connector of claim 1, wherein A plurality of first optical fiber assemblies are arranged in the plug housing (1), a plurality of second mounting holes (125) are formed in the first insulating base (12) in the axial direction, the first optical fiber assemblies can pass through the second mounting holes (125), and the front ends of the second mounting holes (125) are located in the first mounting groove. The socket shell (5) is provided with a plurality of second optical fiber assemblies, the second insulating base (6) is provided with a plurality of fourth mounting holes (62) in the axial direction, the second optical fiber assemblies can pass through the fourth mounting holes (62), the rear end of the fourth mounting hole (62) is located in the second mounting groove, The rolling seal is provided with a plurality of through holes parallel to each other in the radial direction of the rolling seal, The rolling seal installed in the first mounting groove has a sealing position and an opening position, when the rolling seal is in the sealing position, the surface of the sealing sleeve seals the front end of the second mounting hole (125), when the rolling seal rotates to the opening position, the through holes of the rolling seal are parallel to the axial direction of the plug assembly, and the through holes of the rolling seal are in one-to-one communication with the second mounting hole (125), The rolling seal installed in the second mounting groove also has a sealing position and an opening position, when the rolling seal is in the sealing position, the surface of the sealing sleeve seals the rear end of the fourth mounting hole (62), when the rolling seal rotates to the opening position, the through holes of the rolling seal are parallel to the axial direction of the socket assembly, and the through holes of the rolling seal are in one-to-one communication with the fourth mounting hole (62).

6. The connector of claim 5, wherein The first push rod (91) is provided with a first notch (9131) and a second notch, the second push rod (92) is provided with a third notch (923), and the head of the third push rod (93) is provided with a fourth notch (933), During the process of inserting the plug assembly into the socket assembly, the first notch (9131) and the second notch are used for respectively pushing the tabs of the first rolling seal (31) and the second rolling seal (32), so that the first rolling seal (31) and the second rolling seal (32) rotate from the sealing position to the opening position; the third notch (923) is used for pushing the tab of the third rolling seal (41), so that the third rolling seal (41) rotates from the sealing position to the opening position; and the fourth notch (933) is used for pushing the tab of the fourth rolling seal (42), so that the fourth rolling seal (42) rotates from the sealing position to the opening position; During the process of pulling out the plug assembly from the socket assembly, the first notch (9131) and the second notch are used for respectively pushing the tabs of the first rolling seal (31) and the second rolling seal (32), so that the first rolling seal (31) and the second rolling seal (32) rotate from the opening position to the sealing position; the third notch (923) is used for pushing the tab of the third rolling seal (41), so that the third rolling seal (41) rotates from the opening position to the sealing position; and the fourth notch (933) is used for pushing the tab of the fourth rolling seal (42), so that the fourth rolling seal (42) rotates from the opening position to the sealing position, When the plug assembly and the socket assembly are connected, the rolling seal in the first mounting groove is in communication with the through hole of the rolling seal in the corresponding second mounting groove, the corresponding second mounting hole (125), the through hole of the rolling seal and the fourth mounting hole (62) are in alignment and communication with each other, forming an axial fiber connection channel, and the end of the second fiber assembly can pass through the fiber connection channel to connect with the first fiber assembly.

7. The connector of claim 5, wherein, The rolling seal is also provided with a torsion spring, which is used to apply a restoring force to the rolling seal when the rolling seal is forced to move away from the sealing position, so that the rolling seal can return to the sealing position.

8. The connector of claim 7, wherein, The plug shell (1) includes a first end wall (11), a first insulating base (12) is located on the front side of the first end wall (11), and a plug cavity (13) is formed between the first insulating base (12) and the first end wall (11), at least one first drainage hole (14) is provided on the plug shell (1) at the position of the plug cavity (13), and the plug cavity (13) is in communication with the external environment through the first drainage hole (14), The first end wall (11) is provided with a plurality of first mounting holes (18) in the axial direction, and a plurality of second mounting holes (125) correspond to the first mounting holes (18) one by one and are aligned in the axial direction, the first fiber assembly passes through the first mounting hole (18) and the first oil cavity (16) from back to front, and the front end of the first fiber assembly is located in the second mounting hole (125), The first fiber assembly includes a first fiber, a first fiber tube (22) wrapped on the outer wall of the first fiber, a first fiber jacket (21) wrapped on the tail of the first fiber tube (22), and a first ceramic ferrule (27) connected to the head of the first fiber, the tail end of the first ceramic ferrule (27) is wrapped in the first fiber tube (22), the front end of the first ceramic ferrule (27) is wrapped with a ceramic sleeve (26), and the side wall of the first fiber tube (22) is sealed with the inner wall of the first mounting hole (18) by a first fiber sealing ring (25), ​ The rear side of the first end wall (11) is further provided with a first back plate (19), the first optical fiber sheath (21) is located at the rear side of the first back plate (19), the tail of the first optical fiber tube (22) penetrates through the first back plate (19), a reset spring (24) is further sleeved on the first optical fiber tube (22), the reset spring (24) is located in the first mounting hole (18), the front end of the reset spring (24) acts on the protruding part of the outer wall of the first optical fiber tube (22), and the rear end acts on the first back plate (19), when the first optical fiber assembly is moved backward under the action of external force, the reset spring (24) can provide a rebound force for the first optical fiber tube (22).

9. The connector of claim 8, wherein, The second insulation base (6) and the second end wall (51) form a socket cavity (54), at least one second liquid discharge hole (52) is formed in the position of the socket cavity (54) of the socket shell (5), and the socket cavity (54) is in communication with the external environment through the second liquid discharge hole (52), The second insulation base (6) includes a base block and a cylindrical base wall (63) located at the front side of the base block, a compression spring (7) is sleeved on the base wall (63), the rear end of the compression spring (7) acts on the front end face of the base block, and the front end of the compression spring (7) acts on the second end wall (51), The front end of the base wall (63) is provided with a sealing plate (67), the front end of the base wall (63) is sealed by the sealing plate (67), and a second oil cavity (66) is formed in the space defined by the base wall (63) and the sealing plate (67), The rear end of the sealing plate (67) is provided with at least one second pressure compensation bag (64), the outer wall of the second pressure compensation bag (64) is located in the second oil cavity (66), a bag cavity (65) is formed in the second pressure compensation bag (64), the bag cavity (65) is in communication with the socket cavity (54) through a hole in the sealing plate (67), and the second pressure compensation bag (64) is used to balance the pressure inside and outside the second oil cavity (66) when the pressure in the second oil cavity (66) changes. The second end wall (51) is provided with a plurality of third mounting holes (511) in the axial direction, the second insulation base (6) is provided with a plurality of fourth mounting holes (62) in the axial direction, the plurality of third mounting holes (511) correspond to the plurality of fourth mounting holes (62) one by one and are aligned in the axial direction, The second optical fiber assembly sequentially penetrates through the third mounting hole (511) and the second oil cavity (66) from front to back, and the head of the second optical fiber assembly is located in the second oil cavity (66), The second optical fiber assembly includes a second optical fiber, a second optical fiber tube (82) sleeved on the outer wall of the second optical fiber, a second optical fiber sheath (81) sleeved on the tail of the second optical fiber tube (82), and a second ceramic ferrule (85) connected to the butt joint end of the second optical fiber, the outer wall of the second optical fiber tube (82) and the hole wall of the third mounting hole (511) are sealed by a second optical fiber sealing ring (84). When the plug assembly and the socket assembly are connected, the second ceramic ferrule (85) of the second fiber assembly is inserted into the ceramic sleeve (26) and connected with the first ceramic ferrule (27) of the first fiber assembly.

10. The connector of claim 1, wherein, The second insulating base (6) is also provided with a ring of elastic clamping ring (69), the root of the elastic clamping ring (69) is fixed on the outer wall of the second insulating base (6), the end of the elastic clamping ring (69) extends to the direction of the plug assembly, the outer wall of the front end of the plug shell (1) is provided with a ring of clamping groove (110) along the circumference, when the plug assembly and the socket assembly are connected, the plug shell (1) is inserted into the elastic clamping ring (69), the elastic clamping ring (69) is clamped into the clamping groove (110), the inner wall of the socket shell (5) is provided with a ring of recess along the circumference, when the recess is located at the position corresponding to the end of the elastic clamping ring (69), the recess provides a space for the elastic clamping ring (69) to be able to pop outwards, so that the plug shell (1) can be inserted into the elastic clamping ring (69); when the second insulating base (6) moves to the position where the elastic clamping ring (69) is away from the recess, the elastic clamping ring (69) is tightly held by the inner wall of the socket shell and cannot pop outwards, the side wall of the second insulating base (6) is also provided with a limiting screw (68), the socket shell (5) is provided with a retreat space (53), when the socket assembly is in a non-plug state, the limiting screw (68) is limited at the last end of the retreat space (53), when the connector is connected, the limiting screw (68) can move forward in the retreat space (53).

Images