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EP-4737968-A1 - HIGH-DENSITY FIBER DISTRIBUTION BOX

EP4737968A1EP 4737968 A1EP4737968 A1EP 4737968A1EP-4737968-A1

Abstract

Provided herein is a high-density fiber distribution box comprising a housing (1) and a distribution tray (2) received in the housing (1). The distribution tray (1) is connected to the housing (1) on one side through a hinged mechanism, and the other side of the distribution tray (2) is fastenable to the housing (1) via a latch. The distribution tray (2) includes a base (21), a hinge structure (22) fixed on the base (21), a fiber outlet structure (23) arranged on the base (21) and secured to a side of the hinge structure (22), a fiber guiding structure (24) fixed on the base (21), and a fiber distribution structure (25) located at the center of the base (21).

Inventors

  • LI, SONGSHENG
  • CHEN, Jianchao

Assignees

  • Huizhou Fibercan Industrial Co., Ltd

Dates

Publication Date
20260506
Application Date
20250327

Claims (8)

  1. A high-density fiber distribution box, comprising: a housing (1), and a distribution tray (2) received in the housing (1), wherein the distribution tray (2) is connected to the housing (1) on one side through a hinged mechanism, and the other side of the distribution tray (2) is fastenable to the housing (1) via a latch, characterized in that the distribution tray (2) includes a base (21), a hinge structure (22) fixed on the base (21), a fiber outlet structure (22) arranged on the base (21) and secured to a side of the hinge structure (22), a fiber guiding structure (24) fixed on the base, and a fiber distribution structure (25) located at the center of the base; the fiber guiding structure (24) is arranged outside the fiber distribution structure (25); a first fiber passage (3) is formed between a side wall of the housing (1) and the fiber guiding structure (24), and a second fiber passage (4) is formed between the fiber guiding structure (24) and the fiber outlet structure (23); and the housing (1) is provided with an inlet (5) at a side wall of the housing (1), which communicates with the first fiber passage (3).
  2. The high-density fiber distribution box according to claim 1, characterized in that the housing (1) includes a bottom plate (11) and a top plate (12), and the base (21) of the distribution tray (2) is positioned on and in contact with the bottom plate (11); the bottom plate (11) is provided with a first side wall (13), a second side wall (14), a third side wall (15), and a fourth side wall (16); a gap (6) is formed between the base (21) and the second side wall (14); the bottom plate (11) is provided with a first hinge shaft (111) at a position spaced a certain distance from the second side wall (14), and the distribution tray (2) is rotatable around the first hinge shaft (111); the inlet (5) is provided on the first side wall (13), and the fiber outlet structure (23) is positioned on the third side wall (15); the distribution tray (2) is hinged to the bottom plate (11) and the top plate (12) via the first hinge shaft (111); the distribution tray (2) is latched to the fourth side wall (16); a backplate member (7) is provided at the junction of the second side wall (14) and the third side wall (15), and the width of the backplate member (7) is smaller than the width of the gap (6).
  3. The high-density fiber distribution box according to claim 2, characterized in that the fiber distribution structure (25) includes a first winding support (251), a second winding support (252), and a guiding support (253), all fixedly connected to the base (21), wherein the guiding support (253) is positioned between the first winding support (251) and the second winding support (252), and the first winding support (251), the second winding support (252) and the guiding support (253) are arranged in a line; the first winding support (251) and the second winding support (252) are identical in structure, and the fiber distribution structure (25) has at least two the first winding support (251) and at least two the second winding support (252).
  4. The high-density fiber distribution box according to claim 3, characterized in that the guiding support (253) includes a first guiding reel (2531) fixed to the base (21) and a plurality of limiting seats (2532) fixed to the base (21) and positioned on the outer side of the first guiding reel (2531); a guiding channel (2533) is defined between the first guiding reel (2531) and the limiting seat (2532); the side surfaces of the first guiding reel (2531) and the limiting seat (2532) are respectively provided with a first fiber clamp (2534) and a second fiber clamp (2535), both facing the guiding channel (2533); a first guiding slot (2536), communicating with the guiding channel (2533), is formed between the first fiber clamp (2534) and the second fiber clamp (2533); the guiding support (253) includes three limiting seats (2532), and the fiber clamps on the first guiding reel (2531) and the fiber clamps on the three limiting seats (2532) form, between them, a second guiding slot (2537), a third guiding slot (2538), and a fourth guiding slot (2539), respectively.
  5. The high-density fiber distribution box according to claim 4, characterized in that the first winding support (251) includes a second guiding reel (2511) fixedly connected to the base (21), an inclined fixing seat (2512) fixedly connected to a side of the second guiding reel (2511), a hinge seat (2513) secured to the inclined fixing seat (2512), and a winding tray (2514) hinged to the hinge seat (2513); and the inclined fixing seat (2512) is positioned adjacent to a side of the guiding support (253), and the second guiding reel (2511) is provided with a first notch (2512) and a second notch (2516) on a side adjacent to the inclined fixing seat (2512).
  6. The high-density fiber distribution box according to claim 4, characterized in that the winding tray (2514) includes a winding base (25141) and a second hinge shaft (25142) fixedly connected to a side of the winding base (25141); the winding base (25141) is hinged to the hinge seat (2513) via the second hinge shaft (25142) and is rotatable around the hinge seat (2513); the winding base (25141) is provided with a detachable splicing clamp block (25143) and a fiber winding block (25144) positioned adjacent to the splicing clamp block (25143); and the winding base (25141) is provided with a fiber outlet (25145).
  7. The high-density fiber distribution box according to claim 3, characterized in that the guiding structure (24) includes a first guiding wall (241) and a second guiding wall (242), both fixed to the base (21); the first guiding wall (241) includes: a first guiding section (2411) positioned on an inner side of the fourth side wall (16), a second guiding section (2412) fixedly connected to the first guiding section (2411) and extending along an inner side of the first side wall (13), a third guiding section (2413) fixedly connected to the second guiding section (2412) and extending along an inner side of the second side wall (14), and a fourth guiding section (2414) fixedly connected to the third guiding section (2413), extending around an outer side of the first winding support (251), and abutting the guiding support (253); the second guiding wall includes: a fifth guiding section (2421) positioned on an inner side of the fiber outlet structure (23), a sixth guiding section (2422) fixedly connected to the fifth guiding section (2411) and positioned on an inner side of the first guiding section (2411), and a seventh guiding section (2423) fixedly connected to the sixth guiding section (2422) and positioned on the inner side of the first guiding section (2411).
  8. The high-density fiber distribution box according to claim 7, characterized in that the first fiber passage (3) includes an inlet passage (31) and an outlet passage (32); the inlet passage (31) is formed by a continuous space defined between the first guiding section (2411) and the fourth side wall (16), between the second guiding section (2412) and the first side wall (13), between the third guiding section (2413) and the second side wall (14), including the fourth guiding section (2414), and the fifth guiding section (2421); the inlet passage (31) communicates with the second guiding slot (2537); the outlet passage (32) is formed by spaces defined between the fifth guiding section (2421) and the fiber outlet structure (23), between the sixth guiding section (2422) and the first guiding section (2411), and between the seventh guiding section (2423) and the second guiding section (2412).

Description

TECHNICAL FIELD The present disclosure relates to the field of communication technology, particularly to a high-density fiber distribution box. BACKGROUND ART With the increasing demand for communication bandwidth, optical fibers have been extensively used in wired communication networks. Optical fiber distribution boxes for fiber splicing integrate fiber storage and distribution functions. The optical fiber distribution boxes are typically fixed in indoor or outdoor optical fiber distribution equipment and serve as a critical component of such equipment. Existing optical fiber distribution boxes use a rotating mechanism to rotate the distribution tray out of the box for easier operation. However, the current rotating fiber distribution boxes have insufficient rotation angles and lack stability. Additionally, the structure of existing fiber distribution boxes is flawed, making it impossible to receive more optical fibers within a limited space. SUMMARY The objective of the present disclosure is to provide a high-density fiber distribution box to overcome the above-mentioned drawbacks of existing fiber distribution boxes. Various embodiments of the present disclosure provides a high-density fiber distribution box comprising a housing, and a distribution tray received in the housing, wherein the distribution tray is connected to the housing on one side through a hinged mechanism, and the other side of the distribution tray is fastenable to the housing via a latch, wherein the distribution tray includes a base, a hinge structure fixed on the base, a fiber outlet structure arranged on the base and secured to a side of the hinge structure, a fiber guiding structure fixed on the base, and a fiber distribution structure located at the center of the base, wherein the fiber guiding structure is arranged outside the fiber distribution structure, wherein a first fiber passage is formed between a side wall of the housing and the fiber guiding structure, and a second fiber passage is formed between the fiber guiding structure and the fiber outlet structure, and wherein the housing is provided with an inlet at a side wall of the housing, which communicates with the first fiber passage. According to some embodiments, the housing includes a bottom plate and a top plate, and the base of the distribution tray is positioned on and in contact with the bottom plate. The bottom plate is provided with a first side wall, a second side wall, a third side wall, and a fourth side wall. A gap is formed between the base and the second side wall. The bottom plate is provided with a first hinge shaft at a position spaced a certain distance from the second side wall, and the distribution tray is rotatable around the first hinge shaft. The inlet is provided on the first side wall, and the fiber outlet structure is positioned on the third side wall. The distribution tray is hinged to the bottom plate and the top plate via the first hinge shaft. The distribution tray is latched to the fourth side wall. A backplate member is provided at the junction of the second side wall and the third side wall, and the width of the backplate member is smaller than the width of the gap. According to some embodiments, the fiber distribution structure includes a first winding support, a second winding support, and a guiding support, all fixedly connected to the base, wherein the guiding support is positioned between the first winding support and the second winding support, and the first winding support, the second winding support and the guiding support are arranged in a line. The first winding support and the second winding support are identical in structure, and the fiber distribution structure has at least two the first winding support and at least two the second winding support. According to some embodiments, the guiding support includes a first guiding reel fixed to the base and at least two limiting seats fixed to the base and positioned on the outer side of the first guiding reel. A guiding channel is defined between the first guiding reel and the limiting seat. The side surfaces of the first guiding reel and the limiting seat are respectively provided with a first fiber clamp and a second fiber clamp, both facing the guiding channel. A first guiding slot, communicating with the guiding channel, is formed between the first fiber clamp and the second fiber clamp. The guiding support includes three limiting seats, and the fiber clamps on the guiding reel and the fiber clamps on the three limiting seats form, between them, a second guiding slot, a third guiding slot, and a fourth guiding slot, respectively. According to some embodiments, the first winding support includes a second guiding reel fixedly connected to the base, an inclined fixing seat fixedly connected to a side of the second guiding reel, a hinge seat secured to the inclined fixing seat, and a winding tray hinged to the hinge seat. The inclined fixing seat is positioned adjacent to a side of