Underwater sealed optical fiber connector

Abstract

An underwater sealed optical fiber connector is characterized in that a connector transition sleeve is arranged in the middle of a watertight connector, and a plug-in seat and a watertight connection limiting sleeve are arranged in a plug-in hole in the socket end of the connector transition sleeve; the outer side of the wire inlet end of the connector transition sleeve is provided with an optical fiber wire inlet sleeve and three wire inlet sealing rings; the wire inlet vulcanized rubber sealing element is a wire inlet sealing structure of a watertight connector and an optical fiber; a plug ring is reserved between the outer side of the plug contact sealing element and the watertight connection limiting sleeve; the watertight connection limiting sleeve, the plug contact sealing element and the external insertion sealing ring are arranged to be a sealing structure of the watertight connector and the plug end corresponding to the shape of the plug insert; the underwater compressive strength of the two ends of the watertight connector can be improved, the sealing structures at the two ends of the watertight connector can bear high water pressure, the phenomena of failure or damage of waterproof sealing pieces, water inflow and transmission signal interruption of an optical fiber line can be avoided, normal operation of underwater equipment is ensured, and the service life of the optical fiber line is prolonged.

Description

Technical Field

[0001] The utility model relates to an underwater optical fiber connector, in particular to an underwater sealed optical fiber connector. Background Art

[0002] At present, the data signal transmission of underwater equipment is connected through optical fiber lines. Most of the optical fiber connectors connected to the underwater optical fiber lines are sealed through the equipment in the water. Generally, the connection seal of the underwater optical fiber line adopts a sealing sleeve or a plug interface seal, and an airtight sealed optical fiber connector for waterproof sealing. The underwater pressure resistance of the general waterproof seal is weak. When the water pressure of the underwater optical fiber line in deeper water increases, the general waterproof seal is easily failed or damaged by the high pressure. Once the waterproof seal of the optical fiber connector fails or is damaged, the optical fiber connector will be flooded, the transmission signal of the underwater optical fiber line will be interrupted, and even the operation of the underwater equipment will be affected or out of control. In view of the above reasons, a sealed optical fiber connector for underwater use is proposed. Utility Model Content

[0003] The purpose of the utility model is to overcome the problem that the waterproof seal of a general optical fiber connector has a weak underwater pressure resistance. When the water pressure of an underwater optical fiber line increases in deeper water, the general waterproof seal is easily invalid or damaged by the high pressure. Once the waterproof seal of the optical fiber connector fails or is damaged, the optical fiber connector will be flooded, the transmission signal of the underwater optical fiber line will be interrupted, and even the operation of the underwater equipment or the device will be affected or out of control. Through reasonable design, a sealed optical fiber connector for underwater use is provided. The utility model is a special optical fiber connector for underwater use. The watertight connector and the inlet sealing structure of the optical fiber line are solidly integrated with the watertight connector and the optical fiber line through the inlet vulcanized rubber seal. The sealing structure of the plug end of the watertight connector is connected to the plug plug through the sealing structure of the sealing socket. The utility model can improve the underwater pressure resistance of both ends of the watertight connector, the sealing structures at both ends of the watertight connector can withstand higher water pressure, and the sealing of the sealing structures at both ends of the watertight connector is firm, which can avoid the phenomenon of failure or damage of the waterproof seal, water inlet and interruption of the transmission signal of the optical fiber line, ensure the normal operation of the underwater equipment, and extend the service life of the optical fiber line.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: an underwater sealed optical fiber connector, which is composed of: a watertight connector, a connector transition sleeve, a plug-in seat, a watertight connection limit sleeve, a plug contact seal, a jack, a splitter, an optical fiber core connection sleeve, a plug sleeve, an external plug-in sealing ring, an internal sealing ring, a splitter sealing disk, an optical fiber inlet sleeve, an inlet vulcanized rubber seal, and an inlet sealing ring; a connector transition sleeve is arranged in the middle of the watertight connector, and the plug-in hole is reserved at the plug-in hole, a plug-in seat is arranged in the plug-in hole, a connecting thread is arranged between the plug-in hole and the plug-in seat, and a watertight connection limit sleeve is arranged on the outside of the plug-in end of the plug-in seat; an optical fiber inlet sleeve is arranged on the outside of the inlet end of the connector transition sleeve, and three inlet sealing rings are evenly arranged in the inlet hole of the optical fiber inlet sleeve, and the inlet sealing ring is arranged as an optical fiber line; an inlet vulcanized rubber seal is arranged on the inside of the inlet port of the optical fiber inlet sleeve, and the three inlet sealing rings and the inlet vulcanized rubber seal in the inlet hole of the optical fiber inlet sleeve are arranged as the inlet sealing structure of the watertight connector and the optical fiber;

[0005] A plug contact seal is provided at the socket end of the plug-in seat, and sockets are reserved for the plug contact seal and the socket end of the plug-in seat respectively, a plug sleeve is provided in the socket, and a plug plug is provided in the socket and the plug sleeve; an optical fiber core connection sleeve is provided at the wiring end of the plug sleeve, and the optical fiber core connection sleeve is provided in the optical fiber core connection sleeve; a splitter is provided at the wiring end of the plug-in seat, and at least four wire threading holes are evenly distributed on the splitter, a splitter sealing disk is provided on one side of the splitter, and the splitter sealing disk corresponds to the reserved threading holes of the splitter, and the optical fiber line is provided in the threading hole;

[0006] A plug ring is reserved between the outer side of the plug contact seal and the watertight connection limit sleeve, and a plug plug is arranged in the plug ring; three annular grooves are reserved on the outer side of the plug seat, and an outer sealing ring, a middle sealing ring, and an inner sealing ring are respectively arranged in the three annular grooves; the shape of the watertight connection limit sleeve, the plug contact seal, and the outer sealing ring corresponding to the plug plug is set to form a sealing structure of the watertight connector and the plug end.

[0007] Beneficial effects: The utility model is a fiber optic connector specially designed for underwater use, and the line-inlet sealing structure of the watertight connector and the fiber optic line integrates the watertight connector and the fiber optic line into a solid state through the line-inlet vulcanized rubber seal; the sealing structure at the plug end of the watertight connector is connected to the plug plug through the sealing structure of the sealing socket; the utility model can improve the underwater compressive strength of both ends of the watertight connector, and the sealing structures at both ends of the watertight connector can withstand higher water pressure. The sealing of the sealing structures at both ends of the watertight connector is firm, which can avoid the failure or damage of the waterproof seal, water ingress and interruption of the transmission signal of the fiber optic line, thereby ensuring the normal operation of the underwater equipment and extending the service life of the fiber optic line. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] The utility model is further described below in conjunction with the accompanying drawings:

[0009] Figure 1 It is a schematic diagram of the general assembly structure;

[0010] Figure 2 yes Figure 1 Schematic diagram of the end face structure;

[0011] Figure 3 yes Figure 1 Schematic diagram of the three-dimensional structure;

[0012] Figure 1 , 2 , 3: watertight connector 1, connector transition sleeve 2, plug-in seat 3, watertight connection limit sleeve 4, plug contact seal 5, jack 5-1, splitter 6, optical fiber core connection sleeve 7, plug sleeve 8, external plug sealing ring 9, internal sealing ring 10, splitter sealing disk 11, optical fiber inlet sleeve 12, inlet vulcanized rubber seal 13, inlet sealing ring 14. DETAILED DESCRIPTION

[0013] The present invention is further described in detail below with reference to the accompanying drawings and specific embodiments:

[0014] A connector transition sleeve 2 is provided in the middle of the watertight connector 1, and the socket end of the connector transition sleeve 2 is reserved as a plug-in hole, a plug-in seat 3 is provided in the plug-in hole, a connecting thread is provided between the plug-in hole and the plug-in seat 3, and a watertight connection limit sleeve 4 is provided on the outer side of the socket end of the plug-in seat 3; an optical fiber inlet sleeve 12 is provided on the outer side of the inlet end of the connector transition sleeve 2, and three inlet sealing rings 14 are evenly provided in the inlet hole of the optical fiber inlet sleeve 12, and the inlet sealing ring 14 is provided as an optical fiber line; an inlet vulcanized rubber seal 13 is provided on the inner side of the inlet port of the optical fiber inlet sleeve 12, and the three inlet sealing rings 14 and the inlet vulcanized rubber seal 13 in the inlet hole of the optical fiber inlet sleeve 12 are provided as the inlet sealing structure of the watertight connector 1 and the optical fiber;

[0015] A plug contact seal 5 is provided at the socket end of the plug-in seat 3, and a plug 5-1 is reserved for the plug contact seal 5 and the socket end of the plug-in seat 3 respectively, a plug sleeve 8 is provided in the plug 5-1, and a plug plug is provided in the plug 5-1 and the plug sleeve 8; an optical fiber core connection sleeve 7 is provided at the wiring end of the plug sleeve 8, and the optical fiber core connection sleeve 7 is provided in the optical fiber core connection sleeve 7; a splitter 6 is provided at the wiring end of the plug-in seat 3, and at least four wire threading holes are evenly distributed on the splitter 6, a splitter sealing disk 11 is provided on one side of the splitter 6, and the splitter sealing disk 11 corresponds to the reserved threading holes of the splitter 6, and the optical fiber line is provided in the threading holes;

[0016] A plug ring is reserved between the outer side of the plug contact seal 5 and the watertight connection limit sleeve 4, and a plug plug is arranged in the plug ring; three annular grooves are reserved on the outer side of the plug seat 3, and an outer sealing ring 9, a middle sealing ring, and an inner sealing ring 10 are respectively arranged in the three annular grooves; the watertight connection limit sleeve 4, the plug contact seal 5, and the outer sealing ring 9 are arranged to form a sealing structure between the watertight connector 1 and the plug end corresponding to the shape of the plug plug.

Claims

1. A sealed optical fiber connector for underwater use, comprising: a watertight connector (1), a connector transition sleeve (2), a plug seat (3), a watertight connection limit sleeve (4), a plug contact seal (5), a jack (5-1), a splitter (6), an optical fiber core connection sleeve (7), a plug sleeve (8), an external plug sealing ring (9), an internal sealing ring (10), a splitter sealing disk (11), an optical fiber inlet sleeve (12), an inlet vulcanized rubber seal (13), and an inlet sealing ring (14); characterized in that: A connector transition sleeve (2) is provided in the middle of the watertight connector (1), the socket end of the connector transition sleeve (2) is reserved as a plug-in hole, a plug-in seat (3) is provided in the plug-in hole, a connecting thread is provided between the plug-in hole and the plug-in seat (3), and a watertight connection limit sleeve (4) is provided on the outer side of the socket end of the plug-in seat (3); an optical fiber inlet sleeve (12) is provided on the outer side of the inlet end of the connector transition sleeve (2), three inlet sealing rings (14) are evenly provided in the inlet hole of the optical fiber inlet sleeve (12), and the inlet sealing rings (14) are provided as optical fiber lines; an inlet vulcanized rubber sealing member (13) is provided on the inner side of the inlet port of the optical fiber inlet sleeve (12), and the three inlet sealing rings (14) and the inlet vulcanized rubber sealing member (13) in the inlet hole of the optical fiber inlet sleeve (12) are provided as an inlet sealing structure between the watertight connector (1) and the optical fiber.

2. The underwater sealed optical fiber connector according to claim 1, characterized in that: A plug contact seal (5) is provided at the socket end of the plug seat (3), and a plug hole (5-1) is reserved in the plug contact seal (5) and the socket end of the plug seat (3) respectively, and a plug sleeve (8) is provided in the plug hole (5-1), and a plug plug is provided in the plug hole (5-1) and the plug sleeve (8); an optical fiber core connection sleeve (7) is provided at the connection end of the plug sleeve (8), and an optical fiber core is provided in the optical fiber core connection sleeve (7); a splitter (6) is provided at the connection end of the plug seat (3), and at least four wire threading holes are evenly distributed on the splitter (6), and a splitter sealing disk (11) is provided on one side of the splitter (6), and a threading hole is reserved in the splitter (6) corresponding to the threading hole, and an optical fiber line is provided in the threading hole.

3. The underwater sealed optical fiber connector according to claim 1, characterized in that: A plug ring is reserved between the outer side of the plug contact seal (5) and the watertight connection limit sleeve (4), and a plug plug is arranged in the plug ring; three annular grooves are reserved on the outer side of the plug seat (3), and an outer plug sealing ring (9), a middle sealing ring, and an inner sealing ring (10) are arranged in the three annular grooves respectively; the watertight connection limit sleeve (4), the plug contact seal (5), and the outer plug sealing ring (9) are arranged in a shape corresponding to the plug plug to form a sealing structure between the watertight connector (1) and the plug end.

Images