Completely dustproof optical fiber adapter and optical splitter

Abstract

The utility model discloses a completely dustproof optical fiber adapter, which comprises an adapter shell, a fixed cylinder, an adapter inner frame and a movable cylinder, ceramic sleeves are sleeved in the fixed cylinder and the movable cylinder in a limiting manner, dustproof caps are assembled at two ends of the adapter shell, dustproof soft bodies are fixed in the dustproof caps, and the dustproof soft bodies are fixed in the fixed cylinder. The dustproof soft body extends to the outer side of the dustproof cap and enters the ceramic sleeve. The utility model further discloses an optical splitter using the completely dustproof optical fiber adapter. Part of the dustproof soft body can enter the ceramic sleeve and seal the port of the ceramic sleeve, so that dust entering along a gap between the dustproof cap and the adapter shell is prevented from falling into the ceramic sleeve, and the dust can enter and be deposited on the surface of the ceramic sleeve more easily in the process of taking down the optical fiber movable connector to be assembled from the dustproof cap. When an optical fiber movable connector is connected, the dustproof cap can be used again and the dustproof soft body can enter the ceramic sleeve to clean the interior of the ceramic sleeve, so that the performance and the use stability of the optical fiber adapter can be ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to optical fiber connection spare technical field especially, it relates to a completely dustproof type optical fiber adapter, and further relates to the optical distribution unit using the adapter. BACKGROUND

[0002] The optical fiber adapter can be directly matched with the optical fiber movable connector to realize the connection between optical cables, and can be arranged on the optical distribution unit to be matched with the optical fiber movable connector to realize the connection between the optical cable and the optical distribution unit, which realizes the precise alignment connection with the optical fiber connector in the internal of the precise and open ceramic sleeve, thereby ensuring the low loss of the connection and being widely applied in the fields of optical fiber communication, wireless communication, optical sensing and the like.

[0003] And the optical distribution unit arranged with the optical fiber adapter is different according to the type used in different scenes, mainly including trays, inserts, microtypes and box types. According to different specific scenes, some optical distribution units are arranged and installed indoors, and some optical distribution units need to be operated outdoors, such as the insert distribution unit in the optical distribution fiber box and the tray distribution unit in the ODF wiring rack, etc. However, no matter indoor or outdoor use, the optical fiber adapter will inevitably enter dust, although the dust entering amount and smoothness can be reduced by setting the dustproof cap, but there will be a gap between the circumferential side and the adapter shell, so that the dust can enter from the gap during the laying process of the line and the waiting connection period, and the dust can also affect the surface of the ceramic sleeve, especially when the dust entering amount is larger when it is arranged in outdoor application place, which will eventually seriously affect the performance and stability of use. SUMMARY

[0004] The technical problem to be solved by the utility model is to provide a completely dustproof type optical fiber adapter which can prevent dust from entering the ceramic sleeve and clean the entered dust during construction, thereby helping to ensure the use stability.

[0005] To solve the above technical problems, the technical scheme of the utility model is as follows: a completely dustproof type optical fiber adapter, which comprises an adapter shell, a fixed cylinder is integrally formed in the adapter shell, an adapter inner frame is detachably and limitingly assembled in the adapter shell, a movable cylinder is integrally formed in the adapter inner frame, the fixed cylinder and the movable cylinder are coaxially arranged in the adapter inner frame, a ceramic sleeve is limitingly sleeved in the fixed cylinder and the movable cylinder, dustproof caps are detachably assembled at both ends of the adapter shell, dustproof soft bodies are fixed in the dustproof caps, the dustproof soft bodies extend to the outside of the dustproof caps and enter the ceramic sleeve.

[0006] As a preferred technical scheme, the dustproof soft bodies on the two dustproof caps are extended into the ceramic sleeve and abut and fill the lumen of the ceramic sleeve.

[0007] As a preferred technical scheme, the dustproof soft bodies are configured as dustproof cotton or dustproof silica gel.

[0008] As a preferred technical scheme, the dustproof soft bodies comprise soft body fixing parts fixed in the dustproof caps and dustproof filling parts gradually decreasing from the soft body fixing parts to the outer periphery of the dustproof caps.

[0009] As a preferred technical scheme, a sleeve avoiding gap is arranged between the dustproof filling part and the inner wall of the dustproof cap.

[0010] As a preferred technical scheme, the dustproof cap comprises a limiting cover plate corresponding to the end face of the adapter shell, the limiting cover plate is provided with an operation protrusion on the peripheral side, the operation protrusion protrudes from the side wall of the adapter shell, at least one transition table is formed on the surface of the limiting cover plate in the adapter shell, a cylindrical sleeving seat is integrally formed on the innermost transition table, and one end of the dustproof soft body is fixed in the cylindrical sleeving seat.

[0011] As an improvement of the above technical scheme, the axial projection of the dustproof soft body is circular.

[0012] The utility model also relates to a kind of optical distribution unit, including optical distribution and insertion piece box, installation panel is encapsulated on the optical distribution and insertion piece box, completely dustproof type optical fiber adapter is arranged on the installation panel.

[0013] Due to the adoption of the above technical scheme, the utility model has the following beneficial effects: in the buckling state of dustproof cap and adapter shell, part of dustproof soft body can enter into ceramic sleeve and close its port, so as to prevent dust from entering into ceramic sleeve along the gap between dustproof cap and adapter shell, when optical fiber adapter is installed to optical distribution unit, dust is more likely to enter and deposit on the surface of ceramic sleeve during the process of removing dustproof cap and assembling optical fiber movable connector, dustproof cap can be used again when connecting optical fiber movable connector, and dustproof soft body enters into ceramic sleeve to clean its inside, which helps to ensure the performance of optical fiber adapter and its stability in use. BRIEF DESCRIPTION OF DRAWINGS

[0014] The following drawings are only intended to schematically illustrate and explain the utility model, and do not limit the scope of the utility model. Among them:

[0015] Figure 1 It is structure comparison schematic view before and after installing dustproof cap of the utility model embodiment;

[0016] Figure 2It is the structural schematic view of dustproof cap of the embodiment of the utility model;

[0017] Figure 3 It is the structural schematic view of optical distribution equipment of the embodiment of the utility model;

[0018] In the figure: 1-adapter housing;2-fixed cylinder;3-adapter inner frame;31-inner frame vertical plate;32-inner frame horizontal plate;4-movable cylinder;5-ceramic sleeve;6-dustproof cap;61-limit cover;62-operation protrusion;63-transition table;64-cylinder sleeve seat;7-dustproof soft body;71-soft body fixing part;72-dustproof filling part;73-sleeve avoidance gap;8-optical distribution and insertion sheet box;9-mounting panel. DETAILED DESCRIPTION

[0019] The utility model is further described below in combination with the drawings and embodiments. In the following detailed description, only some exemplary embodiments of the utility model are described by way of illustration. It is needless to say that those skilled in the art can realize that the described embodiments can be modified in various ways without departing from the spirit and scope of the utility model. Therefore, the drawings and description are illustrative in nature and are not used to limit the protection scope of the claims.

[0020] As Figure 1 And Figure 2 Completely dustproof optical fiber adapter, including adapter housing 1, integrally formed with fixed cylinder 2 in the adapter housing 1, the adapter housing 1 can be detachably limited to assemble adapter inner frame 3, integrally formed with movable cylinder 4 in the adapter inner frame 3, and the fixed cylinder 2 and the movable cylinder 4 are coaxially arranged in the adapter inner frame 3, and the fixed cylinder 2 and the movable cylinder 4 are limited to assemble ceramic sleeve 5 in. The adapter inner frame 3 cooperates with the fixed cylinder 2 and the movable cylinder 4, realizes that the ceramic sleeve 5 is fixed in the adapter housing 1.

[0021] The end face of the adapter shell 1 is provided with a square structure, the adapter shell 1 and the adapter inner frame 3 are well known to those skilled in the art, for example, in the present embodiment, the adapter inner frame 3 comprises two oppositely arranged inner frame vertical plates 31, which can be detachably limited to the inner wall of the adapter shell 1, and the two inner frame vertical plates 31 are fixedly connected by the inner frame horizontal plate 32 arranged in the middle, the sleeve through hole is arranged through the inner frame horizontal plate 32, and the fixed cylinder 2 and the movable cylinder 4 are respectively abutted on both sides of the inner frame horizontal plate 32. When assembling, first insert the ceramic sleeve 5 into the fixed cylinder 2, then sleeve and limit the adapter inner frame 3 in the adapter shell 1, make the other end of the ceramic sleeve 5 pass through the sleeve through hole and enter the movable cylinder 4, and make the ceramic sleeve 5 be covered in the fixed cylinder 2 and the movable cylinder 4.

[0022] The dustproof cap 6 is detachably assembled at both ends of the adapter shell 1, which is used for plugging both ends of the adapter shell 1, and the dustproof soft body 7 is fixed in the dustproof cap 6, which extends to the outside of the dustproof cap 6 and enters the ceramic sleeve 5. Specifically, the dustproof soft body 7 on the two dustproof caps 6 extends into the ceramic sleeve 5 and is connected, and fills the lumen of the ceramic sleeve 5 by mutual extrusion and the easy deformation characteristic of the dustproof soft body 7, fills the ceramic sleeve 5, prevents dust from entering the ceramic sleeve 5 through the gap between the dustproof cap 6 and the adapter shell 1, so as to keep the cleanliness of the ceramic sleeve 5. The dustproof soft body 7 is provided with dustproof wool or dustproof silica gel, which is easy to deform and has good filling effect on the ceramic sleeve 5.

[0023] As shown in Figure 2 The dustproof soft body 7 of the present embodiment comprises a soft body fixing part 71 fixedly filled in the dustproof cap 6 and a dustproof filling part 72 gradually decreasing from the soft body fixing part 71 to the outer periphery of the dustproof cap 6. The soft body fixing part 71 can be fixedly connected with the dustproof cap 6 by bonding. The dustproof filling part 72 and the inner wall of the dustproof cap 6 are provided with a sleeve avoiding gap 73, so as to facilitate the insertion and assembly of the dustproof cap 6 with the fixed cylinder 2 and the movable cylinder 4, and enhance the fixing property of the dustproof cap 6. The dustproof filling part 72 is gradually decreasing in outer periphery, which is more convenient for the insertion and assembly of the dustproof cap 6, so that it can smoothly enter the ceramic sleeve 5.

[0024] The dustproof cap 6 comprises a limiting cover plate 61 corresponding to the end face of the adapter shell 1, the limiting cover plate 61 is provided with an operating protrusion 62 on the circumferential side, and the operating protrusion 62 is arranged to protrude from the side wall of the adapter shell 1, and two operating protrusions 62 can be oppositely arranged on the limiting cover plate 61, so that the dustproof cap 6 can be forced when being removed, and the dustproof cap 6 can be quickly removed.

[0025] In the embodiment, at least one transition platform 63 is formed on the surface of the limiting cover plate 61 in the adapter shell 1, a cylindrical sleeve seat 64 is integrally formed on the innermost transition platform 63, one end of the dustproof soft body 7 is fixed in the cylindrical sleeve seat 64, and the end of the cylindrical sleeve seat 64 extends into the adapter inner frame 3 and is sleeved on the outer periphery of the corresponding fixed cylinder 2 or movable cylinder 4, so that the dustproof cap 6 is firmly packaged on the adapter shell 1 through the clamping action of the adapter inner frame 3 and the fixed cylinder 2 or movable cylinder 4.

[0026] The axial projection of the dustproof soft body 7 is circular, that is, the soft body fixing part 71 is a cylindrical structure matched with the cylindrical sleeve seat 64, and the dustproof filling part 72 is a circular truncated cone structure with a gradually decreasing diameter. When the dustproof cap 6 is removed and is not connected with the optical fiber movable connector for a long time, external dust will definitely enter the ceramic sleeve 5, and the dustproof cap 6 can be buckled on the adapter shell 1 again, the dustproof cap 6 can be rotated through the force applied to the operating protrusion 62, and the dustproof filling part 72 can clean and remove dust on the inner wall of the ceramic sleeve 5, without the need for additional cleaning swabs and the like.

[0027] As shown in the drawings, Figure 3 The embodiment also relates to an optical branching device, which comprises an optical branching and inserting sheet box 8, and an installation panel 9 is packaged on the optical branching and inserting sheet box 8, and completely dustproof optical fiber adapters are arranged on the installation panel 9, and part of the adapter shell 1 and one dustproof cap 6 are exposed to the outside of the installation panel 9, so that the optical fiber adapters that are not used temporarily have good dustproof effect and the ceramic sleeve 5 in the optical fiber adapters is cleaner due to the arrangement of the dustproof soft body 7.

[0028] The description of the utility model is given for example and description, and is not exhaustive or limits the utility model to the disclosed form. Many modifications and changes are obvious to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical application of the utility model, and enable those skilled in the art to understand the utility model so as to design various embodiments with various modifications suitable for specific purposes.

Claims

1. A dust-proof optical fiber adapter, comprising an adapter housing, a fixing cylinder is integrally formed in the adapter housing, characterized in that: The adapter shell is detachably limited and assembled with an adapter inner frame, the adapter inner frame is integrally formed with a movable cylinder, the fixed cylinder and the movable cylinder are coaxially arranged in the adapter inner frame, the fixed cylinder and the movable cylinder are limited and assembled with a ceramic sleeve, the both ends of the adapter shell are respectively detachably assembled with a dustproof cap, the dustproof cap is fixedly provided with a dustproof soft body, the dustproof soft body extends to the outside of the dustproof cap and enters the ceramic sleeve.

2. The completely dust-proof fiber optic adapter of claim 1, wherein: The dustproof soft bodies on the two dustproof caps extend into the ceramic sleeve after abutting and filling the lumen of the ceramic sleeve.

3. The completely dust-proof fiber optic adapter of claim 1, wherein: The dustproof soft body is provided as dustproof wool or dustproof silica gel.

4. The completely dust-proof fiber optic adapter of claim 3, wherein: The dustproof soft body comprises a soft body fixing part filled and fixed in the dustproof cap and a dustproof filling part gradually reduced from the soft body fixing part to the outer periphery of the dustproof cap.

5. The completely dust-proof fiber optic adapter of claim 4, wherein: The dustproof filling part is provided with a sleeve avoiding gap between the inner wall of the dustproof cap.

6. The completely dust-proof fiber optic adapter of claim 1, wherein: The dustproof cap comprises a limiting cover plate corresponding to the end face of the adapter shell, the limiting cover plate is provided with an operation protrusion on the peripheral side, the operation protrusion protrudes from the side wall of the adapter shell, at least one transition table is formed on the surface of the limiting cover plate in the adapter shell, a cylinder sleeve seat is integrally formed on the innermost transition table, and one end of the dustproof soft body is fixed in the cylinder sleeve seat.

7. The completely dust-proof fiber optic adapter of claim 6, wherein: The axial projection of the dustproof soft body is circular.

8. An optical splitter comprising an optical add-drop cassette, said optical add-drop cassette having a mounting panel encapsulated thereon, characterized by: The mounting panel is provided with the completely dustproof optical fiber adapter as claimed in any one of claims 1 to 7.

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