Abstract: The invention relates to a quick-replacement end cover structure for an optical fiber splice closure and an optical fiber splice closure, the quick-replacement end cover structure comprising: an end cover housing for being connected to a closure cap structure and an inner core main body for being connected to an internal fusion splice tray structure, where the end cover housing is provided with a feature hole for plugging of the inner core main body, an inner wall of the feature hole is provided with an axial limiting feature for axially limiting the inner core main body, first threaded connecting pieces arranged to extend along an axial direction of the feature hole are disposed in the feature hole, and second threaded connecting pieces for cooperating with the first threaded connecting pieces to fix the inner core main body are disposed on the inner core main body.

Abstract: The invention discloses a positioning fixture for fixing an end face structure of an optical fiber splice closure, comprising a fixed clamp, where a movable clamp is connected to the fixed clamp, a locking component is disposed between the fixed clamp and the movable clamp, the fixed clamp is provided with a first groove, the movable clamp is provided with a second groove, and the first groove and the second groove cooperate to form a circular annular slot, where a slot width of the circular annular slot is greater than a thickness of the circumferential flange, the first groove and the second groove are both provided with feature lug bosses that are distributed at intervals along their respective circumferential directions and used for clamping with the circumferential flange.

Abstract: The invention discloses an assembly component for mounting a cylindrical optical fiber terminal box, comprising a first pole mounting bracket and a second pole mounting bracket, wherein a distance between inner end faces of two third flanges corresponds to a distance between outer end faces of two second flanges; a cross-sectional shape of a first flange corresponds to a shape of a third hole; and when the first flange is inserted into the third hole, second holes correspond to fourth holes one by one, and an openable and closable locking piece is socketed in the second hole and the fourth hole.

Abstract: The invention discloses an optical fiber terminal box comprising a box body, where mounting grooves are disposed on the box body, a threading block is plugged into the mounting groove having an open end provided with a threading block pressing plate, the threading block is provided with an optical fiber cabling hole, an outer circumferential surface of the threading block is provided with at least two first positioning grooves arranged along an axial direction of the optical fiber cabling hole, at least one second positioning groove is disposed on a groove bottom surface of at least one of the first positioning grooves, an inner circumferential surface of the mounting groove is provided with first positioning lug bosses, the first positioning lug bosses and the first positioning grooves are arranged in one-to-one correspondence, and at least one of the first positioning lug bosses is provided with a second positioning lug boss.

Abstract: The disclosure provides an optical fiber splice closure including a closure cap, a base and a main body disc component. The closure cap and the base form a sealed cavity, the main body disc component is arranged in the sealed cavity, an optical cable penetrates through the base, enters the sealed cavity and then is divided into a plurality of optical fibers, the optical fibers of different optical cables are welded, the main body disc component includes a supporting piece, a pedestal, a main body disc and a connecting piece, the supporting piece is connected with the pedestal, the pedestal is arranged on the supporting piece, one end of the connecting piece is connected with the pedestal, the main body disc is connected with the other end of the connecting piece, and the main body disc is configured to accommodate the coiled optical fibers.

Abstract: The disclosure provides an optical fiber splice closure including a closure cap and a base. The base includes an end cover and a sealing component, the end cover and the closure cap are connected to form a sealed cavity, an installation groove is formed in the end cover, a through hole communicating with the sealed cavity is formed in a bottom of the installation groove, the sealing component includes a sealing piece, a separator and an installation piece, the sealing piece includes a first pressing piece, a sealing block and a second pressing piece provided with first, second and third installation holes, respectively, which communicate with one another in sequence to form an optical cable hole, optical cables penetrate through the optical cable hole and the through hole and enter the sealed cavity, the separator is arranged in the optical cable hole to separate the optical cables from one another.

Abstract: Systems and methods that describe a graph database system with an online component and an offline component, are provided. Write events that modify a first graph in a real-time graph database included in the online component are received. Graph logs that include changes to the first graph in the real-time graph database caused by the write events are generated. The graph logs are transmitted to an offline component of the graph database system in a chronological order. A second graph in the offline component is modified using the graph logs. The first graph and the second graph are instantiated using a graph schema.

Abstract: Systems and methods that describe a graph database system with an online component and an offline component, are provided. Write events that modify a first graph in a real-time graph database included in the online component are received. Graph logs that include changes to the first graph in the real-time graph database caused by the write events are generated. The graph logs are transmitted to an offline component of the graph database system in a chronological order. A second graph in the offline component is modified using the graph logs. The first graph and the second graph are instantiated using a graph schema.