CN212905613U

CN212905613U - 4-core FTTH multi-user optical distribution unit structure

Info

Publication number: CN212905613U
Application number: CN202021763609.1U
Authority: CN
Inventors: 徐海明; 吕鲁英; 王鹤峰
Original assignee: Zhejiang Shouhang Industrial Co ltd
Current assignee: Zhejiang Shouhang Industrial Co ltd
Priority date: 2020-08-21
Filing date: 2020-08-21
Publication date: 2021-04-06
Anticipated expiration: 2030-08-21

Abstract

The utility model discloses a 4 multi-user optical distribution unit structure of core FTTH, upper cover and lower cover including the articulated setting in one side, fixed mounting has the board of accepting in the airtight space that upper cover and lower cover enclose, and the fixed cassette that is provided with of one end of accepting the board, be provided with the optic fibre adapter and the fiber connector that 4 cooperations are connected in the cassette, the top of cassette is provided with the apron, both ends after upper cover and lower cover lock all are provided with the metallic channel that is used for optic fibre to pass. The utility model discloses the FTTH multi-user optical distribution unit of 4 core structures has that the construction is quick, the wiring is pleasing to the eye, connector mill terminate in advance, the loss is little, stable performance's advantage.

Description

4-core FTTH multi-user optical distribution unit structure

Technical Field

The utility model belongs to the technical field of communication equipment, concretely relates to 4 core FTTH multi-user optical distribution unit structures.

Background

In the (optical fiber entering) construction process, the traditional wiring mode is that the interior of a building enters the house through a weak electric well (hidden pipe) or enters the house through a flying wire outside the building, and the two schemes are time-consuming and labor-consuming, and the appearance is messy and not attractive. The wiring mode used in the prior art is mainly used for making quick connection at the port of the optical fiber distribution box or connecting optical fibers by using a prefabricated butterfly-shaped optical cable because optical fiber connecting points are very dispersed and are limited by factors such as cost, field environment and the like; however, the on-site quick connection mode has the defects of high failure rate, short service life, low reliability and large loss, and the prefabricated butterfly-shaped optical cable cannot ensure the distance from the fiber distribution box to a user and the size of the prefabricated butterfly-shaped optical cable, so that unnecessary waste is caused, and the application range of the prefabricated butterfly-shaped optical cable is limited.

SUMMERY OF THE UTILITY MODEL

To the problem that exists among the prior art, the utility model aims to provide a 4 core FTTH multi-user optical distribution unit structure.

The utility model discloses a following technical scheme realizes:

4 core FTTH multi-user optical distribution unit structure, including articulated upper cover and the lower cover that sets up in one side, fixed mounting has the board of accepting in the airtight space that upper cover and lower cover enclose, its characterized in that the fixed cassette that is provided with of one end of accepting the board, be provided with the optic fibre adapter and the fiber connector that 4 cooperations are connected in the cassette, the top of cassette is provided with the apron, both ends after upper cover and lower cover lock all are provided with the metallic channel that is used for optic fibre to pass.

The 4-core FTTH multi-user optical distribution unit structure is characterized in that the wire grooves comprise upper wire grooves correspondingly arranged at two ends of the upper cover and lower wire grooves correspondingly arranged at two ends of the lower cover.

4 core FTTH multi-user optical distribution unit structure, its characterized in that upper cover and lower cover are kept away from articulated one side and are realized connecting through the lock subassembly, the lock subassembly is including corresponding the fastener that hangs that sets up on the upper cover and the portion of hanging the knot that sets up on the lower cover that corresponds.

The 4-core FTTH multi-user optical distribution unit structure is characterized in that the hanging fastener and the hanging fastener part are correspondingly provided with a plurality of groups.

The 4-core FTTH multi-user optical distribution unit structure is characterized in that the lower cover is fixedly provided with a check ring along the inner peripheral wall of the lower cover, a gap is reserved between the check ring and the inner peripheral wall of the lower cover, and corresponding openings are arranged at the two ends of the check ring corresponding to the positions of the wire grooves.

4 core FTTH multi-user optical distribution unit structure, its characterized in that the clearance internal seal is provided with the round sealing strip, the fixed sealed piece that is provided with in both ends of sealing strip, the position department that corresponds the wire groove on the sealed piece is provided with the through wires hole that supplies optic fibre to pass through.

The utility model discloses the FTTH multi-user optical distribution unit of 4 core structures has that the construction is quick, the wiring is pleasing to the eye, connector mill terminate in advance, the loss is little, stable performance's advantage.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

in the figure, 1-upper cover, 2-lower cover, 3-bearing plate, 4-clamping seat, 5-optical fiber adapter, 6-optical fiber connector, 7-cover plate, 8-wire groove, 81-upper wire groove, 82-lower wire groove, 9-fastener, 10-fastener, 11-retainer, 12-gap, 13-sealing strip, 14-sealing block.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings, and specific embodiments will be given.

As shown in fig. 1, the utility model discloses 4 multi-user optical distribution unit structures of core FTTH ensure that 4 customer's port can be opened to an optical cable box, concrete structure includes upper cover and the lower cover that one side is articulated to be set up, fixed mounting has the board of accepting in the airtight space that upper cover and lower cover enclose, the fixed cassette that is provided with of one end of accepting the board, be provided with the optic fibre adapter and the fiber connector that 4 cooperations are connected in the cassette, the top of cassette is provided with the apron, both ends after upper cover and lower cover lock all are provided with the metallic channel that is used for optic fibre to pass.

Furthermore, the wire grooves comprise upper wire grooves correspondingly arranged at two ends of the upper cover and lower wire grooves correspondingly arranged at two ends of the lower cover; the upper cover and the lower cover are far away from one side of the hinge joint and are connected through the buckling assembly, the buckling assembly comprises a hanging fastener correspondingly arranged on the upper cover and a hanging buckling part correspondingly arranged on the lower cover, and the hanging fastener and the hanging buckling part are correspondingly provided with a plurality of groups.

Furthermore, the lower cover is fixedly provided with a check ring along the inner peripheral wall of the lower cover, a gap is reserved between the check ring and the inner peripheral wall of the lower cover, and two ends of the check ring are provided with corresponding openings corresponding to the positions of the wire grooves. Wherein, the clearance is internally provided with a circle of sealing strip in a sealing way, two ends of the sealing strip are fixedly provided with sealing blocks, and the positions of the sealing blocks corresponding to the wire grooves are provided with threading holes for the optical fibers to pass through.

The utility model discloses a core optic fibre in the optical cable is connected with the built-in optical fiber adapter of optical cable box, can put into 4 LC UPC's optical fiber adapter at most in every optical cable box, jumps fine connecting device with registering one's residence when opening as registering one's residence. The other end of the same core optical fiber in the optical cable is provided with an optical fiber connector for being inserted into the light splitting box, and the number of the tail optical fibers is consistent with that of the optical cable boxes. And a bearing sling (or called a reinforced core) is arranged in the optical cable and is used for enhancing the bearing capacity of the MDU optical cable to external tension. The number of optical fibers in the cable can be divided into 1-12 core fibers depending on the field requirements.

In the production process of the product of the utility model, the box bodies and the intervals required by customers are respectively penetrated into the corresponding optical cable box sealing strips, the penetrated optical cables are put into the bottom of the optical cable box, and the sealing treatment is carried out by using glue; stripping an optical cable at the entering position of the optical cable in the box body, drawing out the optical fiber to be used, assembling, curing and grinding the connector, and detecting the insertion loss and the return loss of the connector; placing the bearing plate at the bottom of the box, fixing the optical cable on the bearing plate by penetrating the bearing plate with a 3-100 ribbon, inserting the grinded optical fiber connector into the adapter, placing the adapter into the bearing plate clamping seat to fix the adapter, covering the small cover plate, and fixing the mounting and fixing plate on the bottom of the box by using M3-6201 self-tapping screws; assembling, curing, grinding and the like of the optical fiber movable connector are carried out on the top of the optical cable, stripping is carried out at the position of 500mm of the length of the optical fiber, a yellow protective sleeve is additionally arranged outside the optical fiber, a digital number sleeve corresponding to the number of users of the box body is additionally arranged outside the protective sleeve, the protective sleeve and the optical cable are glued together by using adhesive tapes and are protected by using a heat-shrinkable sleeve in a heat-shrinkable mode, and the insertion loss and the return loss of the connector are detected.

Claims

1.4 many optical distribution unit structures of core FTTH, including articulated upper cover (1) and the lower cover (2) that sets up in one side, fixed mounting has the board of accepting (3) in the airtight space that upper cover (1) and lower cover (2) enclose, its characterized in that the one end of accepting board (3) is fixed and is provided with cassette (4), be provided with optical fiber adapter (5) and fiber connector (6) that 4 cooperations are connected in cassette (4), the top of cassette (4) is provided with apron (7), both ends behind upper cover (1) and lower cover (2) lock all are provided with wire casing (8) that are used for optic fibre to pass.

2. The structure of a 4-core FTTH multi-user optical distribution unit according to claim 1, wherein the wire grooves (8) comprise upper wire grooves (81) correspondingly disposed at both ends of the upper cover and lower wire grooves (82) correspondingly disposed at both ends of the lower cover (2).

3. The structure of the 4-core FTTH multi-user optical distribution unit as claimed in claim 1, wherein the sides of the upper cover (1) and the lower cover (2) far away from the hinge joint are connected by a fastening component, and the fastening component comprises a fastening part (9) correspondingly arranged on the upper cover (1) and a fastening part (10) correspondingly arranged on the lower cover (2).

4. The structure of claim 3, wherein the plurality of sets of the hooking parts (9) and the hooking parts (10) are correspondingly arranged.

5. A 4-core FTTH multi-user light distribution unit structure according to claim 1, wherein the lower cover (2) is fixedly provided with a retaining ring (11) along an inner peripheral wall thereof, a gap (12) is left between the retaining ring (11) and the inner peripheral wall of the lower cover (2), and two ends of the retaining ring (11) are provided with corresponding openings corresponding to positions of the wire guide grooves (8).

6. A4-core FTTH multi-user optical distribution unit structure as claimed in claim 5, wherein a circle of sealing strips (13) is hermetically arranged in the gap (12), sealing blocks (14) are fixedly arranged at two ends of the sealing strips (13), and threading holes for optical fibers to pass through are arranged on the sealing blocks (14) at positions corresponding to the wire grooves (8).