Optical fiber adapter

Abstract

The utility model relates to the technical field of optical fibers, in particular to an optical fiber adapter. The utility model comprises a shell, a ceramic sleeve, a mounting sleeve and tenons, the shell is made of transparent material, the mounting sleeve is arranged in the shell, and the tenons are arranged on the two sides of the mounting sleeve; the ceramic sleeve is embedded into the mounting sleeve, the convex lens is clamped on the shell, the convex lens is hemispherical, the ceramic sleeve is of an annular structure with an opening in the side face, the guide structure is arranged on the mounting sleeve right facing the convex lens, and the notch direction of the ceramic sleeve always faces the convex lens. And the convex lens is arranged between the mounting sleeve and the shell. According to the utility model, optical fiber patch cord connection points can be rapidly identified and positioned through human eye observation, and the efficiency of machine room optical fiber wiring and troubleshooting is improved; whether optical signals are leaked or not is detected from the side face of the adapter through the optical power meter, so that whether the port of the optical splitter has user services or not is detected, and the problem of virtual occupation of the port of the optical splitter is solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of optical fiber, especially relates to an optical fiber adapter. BACKGROUND

[0002] With the continuous expansion of data center and computer room scale, optical fiber wiring becomes more and more complex. In actual optical fiber network deployment, accurately identifying and locating the trend and connection of optical fiber has become a very challenging task. For example, in the access network field, it often appears that the lower port of the optical splitter has been connected with optical fiber, but there is no user service, which is called "virtual occupation of optical splitter port". This situation not only causes waste of network port resources, but also increases the difficulty of network management and maintenance. At present, there is no effective detection scheme for this problem.

[0003] For example, Chinese utility model patent "Optical fiber adapter" (authorized publication number CN 208969277 U) includes a mounting box and a mounting box rear cover, one end of the mounting box is screw connected with the mounting box rear cover, a rear cover threading hole is arranged on the mounting box rear cover, a front mounting cavity is arranged on the end of the mounting box away from the mounting box rear cover, a transparent window is screw connected on the inner wall of the mounting box close to the front mounting cavity, a window threading hole is arranged on the transparent window, a rear mounting column is welded on the end of the mounting box rear cover close to the mounting box, a rear mounting plate is welded on the end of the rear mounting column away from the mounting box rear cover, a screw hole is arranged on the rear mounting plate, a front panel is screw connected on the end of the rear mounting plate away from the rear mounting column through the screw hole, an adapter rotating groove is arranged on the outer wall of the front panel, the whole device is convenient to install and maintain, has novel and unique appearance, and has high stability and practicality, and has certain popularization value.

[0004] "Integrated lens adapter structure" (authorized publication number CN 215932204 U) includes a shell, a first positioning ring is screw connected on the outside of the shell, a second positioning ring is screw connected on the outside of the shell, a rubber piece is sleeved on the opposite side of the first positioning ring and the second positioning ring and inserted into the left side of the shell, a lens mechanism is fixedly installed in the inside of the shell, an optical fiber socket is fixedly installed on the left side of the lens mechanism, an optical fiber isolator is fixedly installed in the inside of the shell and fixedly connected with the lens mechanism, an lc socket is fixedly installed in the inside of the shell and fixedly connected with the optical fiber isolator. The integrated lens adapter structure can be applied to the thickness of different equipment shells for installation operation, and has the advantages of fast and stable installation, strong waterproof and dustproof performance, and avoidance of water droplets and dust entering to hinder the propagation of optical signals.

[0005] The above patents solve the problems of installation and maintenance or avoidance of water droplets and dust entering, but do not involve how to quickly know whether the connected components are working, so the problem of how to identify virtual occupation resources cannot be solved. SUMMARY

[0006] In view of the deficiencies of the prior art, the utility model provides a kind of optical fiber adapter.The transparent adapter of the utility model can leak red light, and the optical fiber jumper connection point can be quickly identified and positioned by observing with the human eye, to improve the efficiency of machine room optical fiber wiring and troubleshooting.The transparent adapter can also leak a small part of the optical modem upstream service optical signal at the interface position of the indoor optical cable and the optical splitter, and the presence of optical signal from the adapter side face is detected by optical power meter to detect whether there is user service at the port of the optical splitter, thereby solving the problem of "virtual occupation of the optical splitter port".

[0007] The technical scheme of the utility model is: a kind of optical fiber adapter, including shell, ceramic sleeve, installation sleeve, tenon, shell is transparent material, installation sleeve is set in shell interior, installation sleeve two sides are provided with tenon;Ceramic sleeve is embedded into installation sleeve interior, it is characterized by: still including convex lens and guide structure, convex lens is clamped on shell, convex lens is hemispherical, ceramic sleeve is the annular structure of side opening, guide structure is set on installation sleeve opposite convex lens, the direction of gap of ceramic sleeve is always towards convex lens, convex lens is set between installation sleeve and shell.

[0008] According to the optical fiber adapter described above, characterized in that: the shell is made of one of polycarbonate, polyamide, polyester, polyimide, polystyrene or glass material, and the shell is made of transparent material, which can transmit visible and infrared optical fibers.

[0009] According to the optical fiber adapter described above, characterized in that: the shell, installation sleeve, tenon, guide structure and hemispherical convex lens are integrally injection molded.

[0010] According to the optical fiber adapter described above, characterized in that: the installation sleeve, tenon, guide structure and convex lens are made of one of polycarbonate, polyamide, polyester, polyimide, polystyrene or glass material.

[0011] According to the optical fiber adapter described above, characterized in that: it further comprises a Fresnel waveband sheet, which is arranged on the front surface of the shell, and the Fresnel waveband sheet is located opposite to the convex lens.

[0012] According to the optical fiber adapter described above, characterized in that: the Fresnel waveband sheet has an opaque annular pattern formed by silk-screen printing, laser engraving or inkjet printing.

[0013] According to the optical fiber adapter described above, characterized in that: it further comprises a two-dimensional code, which is arranged on the front surface of the shell.

[0014] According to the optical fiber adapter as described above, characterized in that the two-dimensional code is printed by silk screen printing, laser engraving or inkjet printing, and the two-dimensional code stores a unique SN code of the optical fiber adapter.

[0015] The utility model discloses the beneficial effect is: first, the light generated during work can be emitted outward through the opening, and the convex lens further focuses the emitted light, facilitating external inspection equipment measurement. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The utility model discloses the three -dimensional schematic view from the whole, has shown the appearance shape and the approximate position relation of each part of optical fiber adapter, and the reader can have a preliminary overall impression to product.

[0017] Figure 2 The shell direction schematic view mainly shows the shape of the shell and the connection relation with other components, especially the position layout of the convex lens, the mounting sleeve, the guide structure etc.

[0018] Figure 3 The three -dimensional schematic view of ceramic sleeve is the ring structure that ceramic sleeve side opens clearly presents, and this structure is the key design point of light signal emission.

[0019] Figure 4 The utility model discloses the front view, and the whole structure of optical fiber adapter is exhibited from the front, including the connection part of both ends and the projection of internal structure in the front direction.

[0020] Figure 5 For Figure 4 S-S direction section view, through the section, the hierarchical structure and relative position relation of each component in the optical fiber adapter are exhibited, such as the distribution of the shell, the mounting sleeve, the ceramic sleeve, the convex lens etc.

[0021] Figure 6 The utility model discloses the partial component structure schematic diagram, and the connection and cooperation relation of mounting sleeve, ceramic sleeve, guide structure etc.

[0022] Figure 7The structure schematic view of the Fresnel zone plate is added to the utility model, the position of the Fresnel zone plate on the front of the shell and the relationship with other components are displayed, and the role of the Fresnel zone plate in light signal focusing is highlighted.

[0023] Figure 8 It is a three-dimensional schematic view of the LC type adapter.

[0024] Figure 9 It is another perspective three-dimensional schematic view of the LC type adapter.

[0025] Figure 10 It is a local component structure schematic view of the LC type adapter.

[0026] Figure 11 It is a structure schematic view of the LC type adapter with added Fresnel zone plate.

[0027] The reference signs are explained as follows: shell 1, ceramic sleeve 2, mounting sleeve 3, tenon 4, guide structure 5, hemispherical convex lens 6, Fresnel zone plate 7, two-dimensional code 8. Specific implementation method

[0028] The technical scheme of the utility model is further described below in combination with the drawings.

[0029] As shown in Figure 1 the utility model discloses a fiber optic adapter, the shell 1 is transparent material, and the visual image of the internal structure of the connector can be clearly seen through the transparent shell, and the shell material of the fiber optic adapter can be polycarbonate (PC), polyamide (PA), polyester (PBT), polyimide (PI), polystyrene (PS), glass and other materials.

[0030] As shown in Figure 2As shown, the optical fiber adapter includes a shell 1, a convex lens 6, a ceramic sleeve 2, a mounting sleeve 3, a tenon 4, and a guide structure 5. The convex lens 6 is hemispherical, and the shell 1, the mounting sleeve 3, the tenon 4, the guide structure 5, and the hemispherical convex lens 6 are integrally injection molded. That is, the mounting sleeve 3, the tenon 4, the guide structure 5, and the convex lens 6 can be made of one of polycarbonate (PC), polyamide (PA), polyester (PBT), polyimide (PI), polystyrene (PS), and glass. The convex lens 6 is clamped on the shell 1, the mounting sleeve 3 is arranged inside the shell 1, the guide structure 5 is arranged on the mounting sleeve 3, and the tenon 4 is arranged on both sides of the mounting sleeve 3. The ceramic sleeve 2 is inlaid into the mounting sleeve 3, the guide structure 5 is arranged on the mounting sleeve 3 opposite to the convex lens 6, the direction of the gap of the ceramic sleeve 2 is always towards the convex lens, and the convex lens 6 is arranged between the mounting sleeve 3 and the shell 1. The shell 1, the ceramic sleeve 2, the mounting sleeve 3, and the tenon 4 are general structures of a conventional optical fiber adapter, and the guide structure 5 and the convex lens 6 are special structures of the utility model. Figure 3 As shown, the ceramic sleeve 2 is a circular ring structure with an open side. When two optical fiber connectors are connected through the optical fiber adapter, the ceramic sleeve 2 fixes the ceramic ferrule in the two optical fiber connectors. Since the ceramic sleeve 2 is opaque, when there is a service optical signal in the connector, the leaked optical signal at the connection position can be emitted outward through the opening. The convex lens 6 of the utility model further focuses the emitted light, which is convenient for external inspection equipment to measure. Through the measurement of the outward leakage of light, it can be known whether the inserted connector in the optical fiber adapter has a service, thereby facilitating the identification and management of the optical fiber port.

[0031] As shown, Figure 4 , Figure 5 The two ends of the optical fiber adapter are the same structure, and are respectively connected with external connectors (the connector is a common technology, and is not marked in the drawing). When the two external connectors are connected, the connection state of the ferrule of the external connector can be observed through the convex lens 6, so that the connection quality of the connector can be visually inspected. The protruding guide structure 5 is designed at the positions of the two ends of the mounting sleeve. When the ceramic sleeve 2 is inlaid into the mounting sleeve 3, the direction of the gap of the ceramic sleeve needs to be aligned with the direction of the guide structure 5. Figure 6As shown, after the ceramic sleeve 2 is installed into the mounting sleeve 3, the ceramic sleeve 2 is in an immovable state due to the limiting of the guide structure 5. This ensures that the notch of the ceramic sleeve 2 always faces the convex lens 6. When the external connector is mated through the adapter of this utility model, the light signal leaked from the mating point of the external connector core can be transmitted to the convex lens 6 along the notch and focused by the convex lens 6. Thus, at the position on the fiber optic adapter shell directly opposite the convex lens, the light signal leaked during connector mating can be received by the human eye or a detector. This allows for the detection of whether there is light signal transmission in the internal fiber of the connector without removing the connector from the fiber optic adapter.

[0032] like Figure 7 As shown, the front of the connector housing of this utility model can be provided with a Fresnel zone plate 7 structure, which is located on the adapter housing 1 opposite the convex lens. The Fresnel zone plate 7 is printed with a series of opaque circular patterns using technologies such as screen printing, laser engraving, and inkjet printing, thereby realizing the function of the Fresnel zone plate 7. In conjunction with the convex lens 6 inside the housing 1, it further realizes the focusing function of the light signal leaked during connector mating. At the same time, a QR code 8 is added to the right side of the front of the housing 1. This QR code 8 is also printed using technologies such as screen printing, laser engraving, and inkjet printing. This QR code 8 stores the unique serial number (SN) of the fiber optic adapter, thereby enabling quality monitoring of the adapter's production process.

[0033] The fiber optic adapters of this invention can be of the SC, LC, ST, MPO, FC, etc. Figures 8 to 11 The diagram illustrates the structural shape of the LC-type adapter.

[0034] The optical fiber adapter has multiple beneficial effects. First, during work, the ceramic sleeve is a ring structure with an open side and is not light-transmissive, the generated light can be emitted outward through the opening, and the convex lens further focuses the emitted light, so that the external inspection equipment can more conveniently perform measurement, and the detection accuracy and efficiency are greatly improved. Second, through measurement of the leaked light, key information such as the working frequency of the optical signal in the inserted connector in the optical fiber adapter can be obtained, the data can provide strong support for network management decision, help management personnel to formulate a more reasonable line management scheme, and optimize network resource allocation. Finally, when the external connector is connected through the adapter of the utility model, the leaked optical signal of the external connector ferrule butt joint point can be transmitted to the convex lens along the gap of the ceramic sleeve and focused by the convex lens. In this way, the position on the optical fiber adapter shell opposite to the convex lens can receive the leaked optical signal of the connector butt joint through the human eye or the detector, so that whether the internal optical fiber of the connector has optical signal transmission can be detected without pulling out the connector from the optical fiber adapter. This function has important significance in actual network maintenance and troubleshooting, and can save a lot of time and labor cost.

Claims

1. An optical fiber adapter, comprising a housing (1), a ceramic sleeve (2), a mounting sleeve (3), a tenon (4), the housing (1) is made of transparent material, the mounting sleeve (3) is arranged inside the housing (1), and the tenon (4) is arranged on both sides of the mounting sleeve (3); the ceramic sleeve (2) is inlaid into the inside of the mounting sleeve (3), characterized in that: It also includes a convex lens (6) and a guide structure (5), the convex lens (6) is clamped on the shell (1), the convex lens (6) is a hemispherical type, the ceramic sleeve (2) is a circular ring structure with an open side, the guide structure (5) is arranged on the mounting sleeve (3) opposite to the convex lens (6), the gap direction of the ceramic sleeve (2) is always towards the convex lens, and the convex lens (6) is arranged between the mounting sleeve (3) and the shell (1). ​ 2. The fiber optic adapter of claim 1, wherein: The shell (1) is made of one of polycarbonate, polyamide, polyester, polyimide, polystyrene or glass material, and the shell is made of transparent material, so that the visible and infrared optical fibers can be transmitted.

3. The fiber optic adapter of claim 1, wherein: The shell (1), the mounting sleeve (3), the tenon (4), the guide structure (5) and the hemispherical convex lens (6) are integrally injection molded.

4. The fiber optic adapter of claim 1, wherein: The mounting sleeve (3), the tenon (4), the guide structure (5) and the convex lens (6) are made of one of polycarbonate, polyamide, polyester, polyimide, polystyrene or glass material.

5. The fiber optic adapter of claim 1, wherein: It also includes a Fresnel zone plate (7), the Fresnel zone plate (7) is arranged on the front surface of the shell, and the Fresnel zone plate (7) is arranged at a position opposite to the convex lens.

6. The fiber optic adapter of claim 5, wherein: The Fresnel zone plate (7) is printed by silk screen printing, laser engraving or inkjet printing.

7. The fiber optic adapter of claim 1, wherein: It also includes a two-dimensional code (8), and the two-dimensional code (8) is arranged on the front surface of the shell (1).

8. The fiber optic adapter of claim 7, wherein: The two-dimensional code (8) is printed by silk screen printing, laser engraving or inkjet printing, and the two-dimensional code (8) stores a unique SN code of the fiber optic adapter.

9. The fiber optic adapter of claim 1, wherein: The type of the fiber optic adapter is SC type, LC type, ST type, MPO type or FC type.

Images