CN214174679U

CN214174679U - FC type wall-penetrating sealing optical fiber switching device

Info

Publication number: CN214174679U
Application number: CN202022779094.0U
Authority: CN
Inventors: 王冬强; 余晓涛; 汪程武; 李世胜
Original assignee: Luoyang Oelnk Optronic Technology Co ltd
Current assignee: Luoyang Oelnk Optronic Technology Co ltd
Priority date: 2020-11-26
Filing date: 2020-11-26
Publication date: 2021-09-10
Anticipated expiration: 2030-11-26

Abstract

The utility model belongs to the technical field of the optic fibre adaptor product and specifically relates to a FC type wall sealing optical fiber switching device is worn to relate to, mainly by wearing wall casing, O type circle I, O type circle II, contact pin subassembly, ceramic sleeve I, ceramic sleeve II, axle sleeve I, axle sleeve II and constitute, wear wall casing outside be provided with the installation and press the platform, the utility model discloses can be applicable to the use place that has the requirement to airtight, watertight when the utensil is used, very big improvement the utility model discloses a be suitable for the scene scope, moreover, the utility model discloses an overall structure designs's simple science, and the production and processing cost is low, is applicable to large batch production installation and use, very big use needs that have satisfied people.

Description

FC type wall-penetrating sealing optical fiber switching device

Technical Field

The utility model belongs to the technical field of the optic fibre adaptor product and specifically relates to a FC type wall sealing optical fiber switching device that wears is related to.

Background

The optical fiber connector can be divided into common single-mode and multi-mode connectors of silicon-based optical fibers according to different transmission media, and other optical fiber connectors taking plastic and the like as transmission media; according to the connector structural style can be divided into:FC. SC, ST, LC, D4, DIN, MU, MT and the like. Wherein the content of the first and second substances,ST connectorTypically used at the distribution equipment end, such as fiber distribution frames, fiber modules, etc.; whereas SC and MT connectors are typically used on the network equipment side. FC, PC (including SPC or UPC) and APC according to the shape of the end face of the optical fiber; also, the division into single cores and multiple cores (e.g., MT-RJ) is based on the number of optical fiber cores. The optical fiber connector has wide application and various varieties. In practical applications, the optical fiber connector is generally distinguished according to different structures of the optical fiber connector. Currently, with the continuous development of domestic communication business, optical fiber communication has entered into the practical stage, and the application range is wider and wider. For optical fiber connectors used in optical communication systems in China, either an inlet connector is used, so-called 'spare parts' such as imported ceramic sleeves and peripheral metal parts are assembled at home, or the optical fiber connectors are produced according to the introduced foreign technologies and key equipment, and are mainly FC type optical fiber connectors. FC type fiber optic connectors were first developed by NTT of japan. FC is an abbreviation for ferro Connector indicating its external reinforcement by means of a metal sleeve and fastening by means of a turnbuckle. The earliest connectors of the FC type used ceramic pins with mating end surfaces that were in the form of Flat Contacts (FC). The connector is simple in structure, convenient to operate and easy to manufacture, but the end face of the optical fiber is sensitive to tiny dust, Fresnel reflection is easy to generate, and the performance of improving return loss is difficult. Later, improvements were made to this type of connector, using Pins (PC) with spherical mating surfaces, without changing the external structure, resulting in a significant increase in insertion loss and return loss performance.

With the development of technology, more and more fields have started to apply optical fibers and optical fiber connectors in large scale for signal transmission and connection, but in some situations with airtight and watertight requirements, the optical fiber connectors need to have airtight and watertight requirements, and the optical fiber connectors cannot be used because the common optical fiber connectors are not designed in a sealing manner, and the optical fiber connectors with the sealing design are high in cost and cannot be applied in large scale, so that a sealing connection scheme using the common optical fiber connectors is urgently needed.

Disclosure of Invention

The utility model aims at providing a FC type wall sealing optical fiber switching device, its scientific design through self structure makes the utility model discloses an optical fiber connector can be applicable to the use place that airtight, watertight required, has satisfied people's operation requirement.

In order to achieve the purpose, the following technical scheme is adopted in the experiment:

a FC type wall-penetrating sealed optical fiber switching device mainly comprises a wall-penetrating shell, an O-shaped ring I, O type ring II, a pin assembly, a ceramic sleeve I, a ceramic sleeve II, a shaft sleeve I and a shaft sleeve II, wherein an installation pressure table is arranged outside the wall-penetrating shell, a ring groove I is formed in the installation pressure table, the O-shaped ring I is installed in the ring groove I formed in the installation pressure table and connected with the ring groove I, an installation through hole is formed in the wall-penetrating shell, a cavity I and a cavity II used for installing the shaft sleeve I and the shaft sleeve II are respectively arranged on two sides of the installation through hole, the pin assembly is installed in the installation through hole processed in the wall-penetrating shell, the O-shaped ring II is installed between the pin assembly and the installation through hole and is in sealing contact with the pin assembly and the installation through hole respectively, the shaft sleeve I is installed in the cavity I and connected with the inner wall of the cavity I, the pin inserting device is characterized in that the shaft sleeve II is arranged in the cavity II and is connected with the inner wall of the cavity II, the ceramic sleeve I and the ceramic sleeve II are arranged at two side parts of the pin inserting component in the installation through hole and are respectively connected with the pin inserting component, the ceramic sleeve I is tightly pressed at the left side part of the pin inserting component through the shaft sleeve I, and the ceramic sleeve II is tightly pressed at the right side part of the pin inserting component through the shaft sleeve II.

Contact pin subassembly constitute by left ceramic contact pin, right ceramic contact pin, adapter sleeve and contact optic fibre, adapter sleeve in seted up the mounting hole, left ceramic contact pin and right ceramic contact pin install respectively in adapter sleeve about the mounting hole both sides position and with the mounting hole continuous, contact optic fibre install in left ceramic contact pin and right ceramic contact pin, the telescopic outside processing of adapter have the annular II that is used for O type circle II installation, O type circle II install in annular II and link to each other with annular II.

The upper portion of the wall penetrating shell is provided with a threaded through hole, a fastening screw is installed in the threaded through hole, the upper portion of the fastening screw is in threaded fit with the threaded through hole, and the lower portion of the fastening screw is installed outside the adapter sleeve and tightly presses the adapter sleeve into the wall penetrating shell.

The groove depth of the annular groove I formed in the mounting pressing table is smaller than the diameter of the O-shaped ring I.

The depth of the annular groove II processed on the adapter sleeve is smaller than the diameter of the O-shaped ring II.

And the two ends of the wall-through shell are provided with connecting installation grooves.

The shaft sleeve I and the shaft sleeve II are of the same structure.

The utility model has the advantages that: the utility model discloses overall structure designs the science, installation operation is simple to use convenient, the utility model discloses mainly through the annular I of seting up on the installation pressure platform and install O type circle I additional to and the annular II of processing on the adapter sleeve and install O type circle II's structural design additional, make the utility model discloses can be applicable to when the utensil is used and have the use place that requires to airtight, watertight, very big improvement the utility model discloses a be suitable for the scene scope, moreover, the utility model discloses an overall structure designs's simple science, and the production and processing cost is low, is applicable to large batch production installation and use, very big satisfied people's use needs.

Drawings

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

fig. 2 is a schematic structural view of a wall-through housing according to the present invention;

fig. 3 is a schematic structural diagram of the pin assembly according to the present invention;

fig. 4 is a schematic structural view of the shaft sleeve I and the shaft sleeve II in the present invention;

FIG. 5 is a schematic view of the external structure of the adapter sleeve of the present invention;

the reference numbers in the figures are: 1-wall casing, 2-O-shaped ring I, 3-O-shaped ring II, 4-pin assembly, 5-ceramic sleeve I, 6-ceramic sleeve II, 7-shaft sleeve I, 8-shaft sleeve II, 9-installation pressing table, 10-ring groove I, 11-cavity I, 12-cavity II, 13-ring groove II, 14-left ceramic pin, 15-right ceramic pin, 16-adapter sleeve, 17-contact optical fiber, 18-installation through hole, 19-installation hole, 20-thread through hole, 21-fastening screw and 22-connection installation groove.

Detailed Description

Specific example 1: the core of the utility model is to provide a FC type wall-through seals optic fibre switching device, its mainly through the annular I10 of seting up on the installation pressure platform 9 and install O type circle I2 additional and annular II10 of processing on adapter sleeve 16 and install O type circle II 3's structural design additional, make the utility model discloses can be applicable to the use place that has the requirement to airtight, watertight when the utensil is used, in order to make the personnel in this technical field understand better the technical scheme of the utility model, it is right with specific embodiment mode to combine the description drawing below the utility model discloses do further detailed description, it needs to explain, is called "being fixed in" or "setting up in" another component when the component, it can be directly or indirectly on another component. When an element is referred to as being "connected to" another element, it can be directly or indirectly connected to the other element. The terms "left" and "right" used in this specification to denote orientation are used with reference to a particular structure shown in the drawings, and do not constitute a limitation on the structure. As shown in the accompanying drawings 1-5 of the specification, an FC-type wall-penetrating sealing optical fiber adapter device mainly comprises a wall-penetrating shell 1, an O-ring I2, an O-ring II3, a pin assembly 4, a ceramic bushing I5, a ceramic bushing II6, a shaft sleeve I7 and a shaft sleeve II8, wherein an installation pressing table 9 is arranged outside the wall-penetrating shell 1, a circular groove I10 for installing the O-ring I2 is formed in the installation pressing table 9, an O-ring I2 for installing and sealing the wall-penetrating shell 1 is installed in a circular groove I10 formed in the installation pressing table 9 and connected with a circular groove I10, it is required to specify that, in order to ensure the installation sealing effect, the depth of the circular groove I10 formed in the installation pressing table 9 is smaller than the diameter of the O-ring I2, that the O-ring I2 protrudes out of the circular groove I10, an installation through hole 18 is formed in the wall-penetrating shell 1, and two sides of the installation through hole 18 are respectively provided with a cavity 12 and a cavity for installing the shaft sleeve II8 and an I11 and an I858 cavity, the pin assembly 4 is installed in an installation through hole 18 processed in the wall-through shell 1, the pin assembly 4 for optical fiber contact installation consists of a left ceramic pin 14, a right ceramic pin 15, an adapter sleeve 16 and a contact optical fiber 17, an installation hole 19 is formed in the adapter sleeve 16, the left ceramic pin 14 and the right ceramic pin 15 are respectively installed at the left side and the right side of the installation hole 19 inserted in the adapter sleeve 16, the contact optical fiber 17 is installed in the left ceramic pin 14 and the right ceramic pin 15, a ring groove II13 for installing an O-ring II3 is processed outside the adapter sleeve 16, an O-ring II3 for sealing between the pin assembly 4 and the installation through hole 18 in the wall-through shell 1 is installed in the ring groove II13 and connected with the ring groove II13, it is required to say that, in order to ensure the installation sealing effect, the depth of the ring groove II13 processed on the adapter sleeve 16 is smaller than the diameter of the O-ring II3, that is, the O-ring II3 protrudes out of the annular groove II13 when it is installed, after it is installed, the O-ring II3 is located between the pin assembly 4 and the installation through hole 18 and is in sealing contact with both the pin assembly 4 and the installation through hole 18, the ceramic bushing I5 and the ceramic bushing II6 are installed at both sides of the insertion pin assembly 4 in the installation through hole 18 and are connected to the pin assembly 4, the ceramic bushing I5 is pressed against the left side of the pin assembly 4 by the bushing I7, and the ceramic bushing II6 is pressed against the right side of the pin assembly 4 by the bushing II 8. A threaded through hole 20 for installing a fastening bolt is formed in the upper portion of the wall-penetrating shell 1, a fastening screw 21 for fixing the position of the adapter sleeve 16 is installed in the threaded through hole 20, the upper portion of the fastening screw 21 is in threaded fit with the threaded through hole 20, the lower portion of the fastening screw is installed outside the adapter sleeve 16, and the adapter sleeve 16 is pressed in the wall-penetrating shell 1. The utility model discloses can be applicable to the use place that has the requirement to airtight, watertight when the utensil is used, very big improvement the utility model discloses a be suitable for the scene scope, production and processing cost is low, is applicable to large batch production installation and uses, the utility model provides a relative position of contact pin subassembly and wall-penetrating casing 1 can be fixed to the construction screw for the ceramic contact pin can have the APC terminal surface except that PC, UPC terminal surface, adopts above-mentioned structural scheme after, the utility model discloses a wall-penetrating sealing optical fiber switching device has simple structure, excellent effect, and the characteristics of stable performance is reliable, is applicable to the application occasion that ordinary fiber connector need wear the wall and airtight, watertight requires, can satisfy the user demand of novel equipment. The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention.

Claims

1. A FC type wall-penetrating sealed optical fiber switching device is characterized by mainly comprising a wall-penetrating shell, an O-shaped ring I, O type ring II, a pin assembly, a ceramic sleeve I, a ceramic sleeve II, a shaft sleeve I and a shaft sleeve II, wherein the wall-penetrating shell is externally provided with an installation pressing table, the installation pressing table is provided with a ring groove I, the O-shaped ring I is installed in the ring groove I arranged on the installation pressing table and connected with the ring groove I, an installation through hole is processed in the wall-penetrating shell, two sides of the installation through hole are respectively provided with a cavity I and a cavity II for installing the shaft sleeve I and the shaft sleeve II, the pin assembly is installed in the installation through hole processed in the wall-penetrating shell, the O-shaped ring II is installed between the pin assembly and the installation through hole and is respectively in sealing contact with the pin assembly and the installation through hole, the shaft sleeve I is installed in the cavity I and connected with the inner wall of the cavity I, the pin inserting device is characterized in that the shaft sleeve II is arranged in the cavity II and is connected with the inner wall of the cavity II, the ceramic sleeve I and the ceramic sleeve II are arranged at two side parts of the pin inserting component in the installation through hole and are respectively connected with the pin inserting component, the ceramic sleeve I is tightly pressed at the left side part of the pin inserting component through the shaft sleeve I, and the ceramic sleeve II is tightly pressed at the right side part of the pin inserting component through the shaft sleeve II.

2. The FC type through-wall sealing optical fiber switching device according to claim 1, wherein the pin assembly comprises a left ceramic pin, a right ceramic pin, an adapter sleeve and a contact optical fiber, the adapter sleeve is internally provided with a mounting hole, the left ceramic pin and the right ceramic pin are respectively mounted at the left side and the right side of the mounting hole in the adapter sleeve and connected with the mounting through hole, the contact optical fiber is mounted in the left ceramic pin and the right ceramic pin, an annular groove II for mounting an O-ring II is machined outside the adapter sleeve, and the O-ring II is mounted in the annular groove II and connected with the annular groove II.

3. The FC type wall-penetrating sealed optical fiber adapter device as claimed in claim 1, wherein a threaded through hole is formed in an upper portion of the wall-penetrating housing, a fastening screw is installed in the threaded through hole, an upper portion of the fastening screw is in threaded fit with the threaded through hole, and a lower portion of the fastening screw is installed outside the adapter sleeve and presses the adapter sleeve into the wall-penetrating housing.

4. The FC type through-wall sealing optical fiber adapter device as claimed in claim 1, wherein the groove depth of the annular groove I formed on the mounting pressing platform is smaller than the diameter of the O-ring I.

5. The FC type through-wall sealing fiber optic adapter of claim 2, wherein the groove depth of the annular groove II machined in the adapter sleeve is less than the diameter of the O-ring II.

6. The FC type through-wall sealed optical fiber adapter device as claimed in claim 1, wherein connection mounting grooves are formed at both ends of the through-wall housing.

7. The FC type through-wall sealing fiber optic adapter device of claim 1, wherein the sleeve I and the sleeve II are the same structure.