CN223692549U - Optical fiber adapter - Google Patents

Abstract

The utility model discloses an optical fiber adapter, which comprises a shell, a connecting sleeve, a shielding door and a resetting piece, wherein the technical scheme of the utility model is that the shielding door is adopted to shield a first port of the shell, and the shielding door has a closing trend under the action of the resetting piece, so that, when no external force acts on, the shielding door is always in a closed state, on one hand, the damage to human eyes caused by the leakage of high-intensity infrared light beams can be effectively prevented, on the other hand, dust can be effectively prevented from entering the inside of the adapter, and the light transmission stability after optical fiber connection is ensured. And when docking fiber connector to first port, can be directly with fiber connector support top shielding door and insert in the first port, at this in-process, first port is by the shutoff all the time, can prevent equally that infrared beam from leaking outward, the operator need not to wear the protective equipment at the butt joint process like this, has improved the assembly convenience greatly.

Description

Optical fiber adapter

Technical Field

The utility model relates to the technical field of optical fiber communication, in particular to an optical fiber adapter.

Background

The optical fiber adapter is equipment which can be used for connecting optical fiber connectors with different types or different interface standards, the optical fiber adapter connects the optical fiber connectors through ports at two ends of the optical fiber adapter to realize the transmission of optical signals, and the optical fiber adapter ensures the seamless transmission of the optical signals by aligning optical fibers of two independent optical cables.

Fiber optic adapters are classified into various types, such as LC type, SC type, FC type, ST type, etc., wherein the fiber optic adapters are generally provided at both ends with removable plugs, particularly commonly found in SC type fiber optic adapters, which can prevent dust from entering the fiber optic adapters. Generally, in practical application, one end of the optical fiber adapter is connected with an optical fiber connector, and the other end of the optical fiber adapter is provided with a plug, and the plug can shield a high-intensity infrared beam emitted in the optical fiber, so that the human eyes are prevented from being damaged due to long-time exposure to the infrared beam.

However, before an operator can dock another fiber optic connector to the other end of the fiber optic adapter, the plug needs to be detached, and during this process, the operator needs to protect the eyes by wearing protective glasses, there is a risk that the eyes are damaged due to improper operation of the operator, and the operator is not convenient enough, so improvement is needed.

Disclosure of utility model

The utility model mainly aims to provide an optical fiber adapter, and aims to optimize light leakage prevention and dust prevention performances of the optical fiber adapter.

To achieve the above object, the present utility model provides an optical fiber adapter, comprising:

The shell, the relative both sides of the said shell have first port and second port;

The connecting sleeve is arranged in the shell, two ends of the connecting sleeve face the first port and the second port respectively, and the connecting sleeve is used for connecting two optical fiber connectors;

The shielding door is movably connected with the wall surface of the first port and has an open state and a closed state, the shielding door seals the first port when the shielding door is in the closed state, the first port is exposed when the shielding door is in the closed state, and

And one end of the resetting piece is arranged on the shell, and the other end of the resetting piece is connected with the shielding door so that the shielding door has a closing trend.

In some embodiments of the present utility model, one side of the shielding door is rotatably connected to a side wall surface of the first port, the side wall surface of the first port is provided with a stop step, and when the shielding door is in a closed state, a peripheral edge of an outer side surface of the shielding door abuts against the stop step.

In some embodiments of the present utility model, the stop step is provided to extend obliquely so that the shielding door is inclined in a direction away from the rotation axis thereof toward a direction approaching the connection sleeve in a closed state.

In some embodiments of the present utility model, the housing is provided with receiving grooves recessed on two side walls of the housing in a direction of a rotation axis of the shielding door, the stop step is a groove wall of one side of the receiving groove, which is close to the first port, and two side edges of the shielding door are respectively rotatably received in the two receiving grooves.

In some embodiments of the utility model, the housing comprises a housing body formed with the first port and a base, the connection sleeve being mounted within the housing body;

The shell main body is provided with a mounting opening on one wall surface between the connecting sleeve and the first port, mounting notches are respectively formed on two opposite side wall surfaces of the mounting opening, protruding shafts are arranged on two opposite sides of the shielding door and are rotationally assembled in the corresponding mounting notches, and the base is mounted on the mounting opening and limits the protruding shafts to be positioned in the mounting notches.

In some embodiments of the present utility model, the reset element is a reset spring, and the reset spring includes a connection end and a propping end that are oppositely disposed, where the connection end is clamped between the base and a wall surface of the mounting opening, and the propping end is propped against an end of the shielding door, which is far away from the protruding shaft.

In some embodiments of the present utility model, a side wall surface of the mounting port, which is close to the first port, is set as an assembly step, the assembly step includes an angled plugging surface and a cover pressing surface, the plugging surface is provided with a plugging groove, and a notch of the plugging groove is arranged in a direction opposite to the opening direction of the first port;

The edge of the connecting end is provided with a first inserting flange, one side of the base is provided with a second inserting flange, the first inserting flange and the second inserting flange are both inserted into the inserting groove, and the connecting end is clamped between the base and the cover pressing surface.

In some embodiments of the present utility model, the cover pressing surface is provided with a limiting protrusion, the connecting end is provided with a first limiting hole, the base is provided with a second limiting hole aligned with the first limiting hole, and the limiting protrusion is clamped in the first limiting hole and the second limiting hole.

In some embodiments of the utility model, the fiber optic adapter further comprises a snap structure coupled within the housing for snap-fitting a fiber optic connector that is mated to the connection sleeve.

In some embodiments of the present utility model, the fastening structure includes a base plate, a protective sleeve, and at least two fastening arms, where the base plate is connected to the housing, the base plate is provided with a avoidance hole for the connection sleeve to pass through, and one end of the protective sleeve is connected to a surface of the base plate facing the first port and is nested outside the connection sleeve;

One end of each clamping arm is connected to one surface of the substrate, which faces the first port, and each clamping arm surrounds the periphery of the protective sleeve at intervals.

According to the technical scheme, the shielding door is adopted to shield the first port, and has a tendency of closing under the action of the reset piece, so that the shielding door is always in a closed state when no external force acts, on one hand, high-intensity infrared light beams can be effectively prevented from leaking outwards to cause injury to eyes, on the other hand, dust can be effectively prevented from entering the adapter, and the light transmission stability after optical fiber connection is ensured. And when docking fiber connector to first port, can be directly with fiber connector support top shielding door and insert in the first port, at this in-process, first port is by the shutoff all the time, can prevent equally that infrared beam from leaking outward, the operator need not to wear the protective equipment at the butt joint process like this, has improved the assembly convenience greatly.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of an embodiment of a fiber optic adapter according to the present utility model;

FIG. 2 is an exploded view of one embodiment of a fiber optic adapter provided by the present utility model;

FIG. 3 is a cross-sectional view of one embodiment of a fiber optic adapter provided by the present utility model;

FIG. 4 is a cross-sectional view of one embodiment of a fiber optic adapter according to the present utility model from another perspective;

FIG. 5 is an exploded view of a portion of the structure of a fiber optic adapter provided by the present utility model;

Fig. 6 is an enlarged view at a in fig. 5.

Reference numerals illustrate:

100. the optical fiber adapter comprises 10, a housing, 11, a housing main body, 111, a mounting port, 112, an assembly step, 1121, a cover pressing surface, 1122, a plug surface, 1123, a plug groove, 1124, a limit protrusion, 12, a base, 121, a second plug flange, 122, a second limit hole, 123, a recess for avoiding, 124, a clamping arm, 13, a first port, 141, an assembly notch, 15, a containing groove, 151, a stop step, 16, a second port, 20, a connecting sleeve, 30, a shielding door, 31, a protruding shaft, 40, a reset piece, 411, a connecting end, 4111, a first plug flange, 4112, a first limit hole, 412, a top end, 50, a clamping structure, 51, a base plate, 52, a protective sleeve, 53, a clamping arm, 60, a plug, 70 and a plate spring.

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear are referred to in the embodiments of the present utility model), the directional indications are merely used to explain the relative positional relationship, movement conditions, and the like between the components in a specific posture, and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, if "and/or" and/or "are used throughout, the meaning includes three parallel schemes, for example," a and/or B "including a scheme, or B scheme, or a scheme where a and B are satisfied simultaneously. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

Referring to fig. 1 to 5, the present utility model proposes an optical fiber adapter 100, which includes a housing 10, a connection sleeve 20, a shielding door 30, and a reset member 40, wherein a first port 13 and a second port 16 are opened at two opposite sides of the housing 10, the connection sleeve 20 is disposed in the housing 10, two ends of the connection sleeve 20 face the first port 13 and the second port 16 respectively, the connection sleeve 20 is used for connecting two optical fiber connectors, the shielding door 30 is movably connected to a wall surface of the first port 13, the shielding door 30 has an open state and a closed state, the shielding door 30 seals the first port 13 when the shielding door 30 is in the closed state, the first port 13 is exposed when the shielding door 30 is in the closed state, one end of the reset member 40 is mounted to the housing 10, and the other end is connected to the shielding door 30 so that the shielding door 30 has a closing trend.

According to the technical scheme, the shielding door 30 is adopted to shield the first port 13, and the shielding door 30 has a tendency of closing under the action of the resetting piece 40, so that the shielding door 30 is always in a closed state when no external force acts, on one hand, the damage to eyes caused by leakage of high-intensity infrared light beams can be effectively prevented, on the other hand, dust can be effectively prevented from entering the inside of the adapter, and the light transmission stability after optical fiber connection is ensured. And, when docking the optical fiber connector to the first port 13, can directly support the optical fiber connector and push up shielding door 30 and insert in the first port 13, in this process, first port 13 is sealed all the time, can prevent equally that infrared beam from leaking outward, and the operator need not to wear the protective equipment at the butt joint process like this, has improved the assembly convenience greatly.

The connecting sleeve 20 plays a role in optical fiber alignment in the optical fiber adapter 100, and is generally made of ceramic materials, and has good thermal stability, high hardness, high melting point and wear resistance. The second port 16 and its internal structure of the fiber optic adapter 100 may be disposed symmetrically with respect to the first port 13, or a plug 60 may be used.

In some embodiments of the present utility model, a sliding hole is formed in a side wall surface of the housing 10 of the first port 13, the shielding door 30 is slidably mounted in the sliding hole, the reset member 40 is a reset compression spring, the shielding door 30 slidably covers the first port 13 under the action of the reset compression spring, and when the optical fiber connector is docked to the first port 13, the shielding door 30 can be pulled out and docking operation can be performed. Further, the outer side surface of the shielding door 30 can be opened to be a guiding inclined surface, so that the optical fiber connector can be directly abutted against the guiding inclined surface, and the shielding door 30 is pressed to slide and open, so that the assembly is convenient.

In order to improve the light-shielding and dust-proof performance of the shielding door 30, in some embodiments of the present utility model, one side of the shielding door 30 is rotatably connected to one side wall surface of the first port 13, the wall surface of the first port 13 is provided with a stop step 151, and when the shielding door 30 is in a closed state, the peripheral edge of the outer side surface of the shielding door 30 abuts against the stop step 151. In this way, the shielding door 30 is attached to the stop step 151, and a plurality of gaps are formed between the shielding door 30 and the wall surface of the first port 13, so that light can be effectively prevented from leaking out through the gaps between the shielding door 30 and the inner wall surface of the housing 10, and dust is less likely to enter the housing 10.

To further facilitate the mating of the optical fiber connectors, in some embodiments of the present utility model, the stop step 151 is provided to extend obliquely so that the shielding door 30 is inclined in a direction away from the rotation axis thereof toward a direction approaching the connection sleeve 20 in the closed state. This reduces operator thrust travel when inserting the fiber optic connector into the first port 13, thereby facilitating mating.

The specific embodiments of the above-mentioned limit step are various, for example, the limit step may be a rib provided on the inner wall surface of the housing 10. Preferably, in some embodiments of the present utility model, the housing 10 is recessed with receiving grooves 15 on two side walls of the shielding door 30 along the rotation axis direction, the stop step 151 is a side groove wall of the receiving groove 15 near the first port 13, and two side edges of the shielding door 30 are respectively rotatably received in the two receiving grooves 15. So set up, fiber optic adapter 100 overall structure is compacter to, shield door 30 can be effectively limited in holding tank 15, and structural stability is higher.

Further, in some embodiments of the present utility model, the receiving groove 15 is provided in a fan shape such that the receiving groove 15 is more adapted to the shielding door 30.

The housing 10 of the optical fiber adapter 100 is generally configured as a split structure, and may be specifically divided into two, three or more detachable parts, so that the assembly and fixation of the shielding door 30 are facilitated. Preferably, in some embodiments of the present utility model, the housing 10 includes a housing body 11 and a base 12, the housing body 11 is formed with the first port 13, the connection sleeve 20 is installed in the housing body 11, a wall surface of the housing body 11 between the connection sleeve 20 and the first port 13 is provided with an installation opening 111, two opposite side wall surfaces of the installation opening 111 are respectively provided with an assembly notch 141, two opposite sides of the shielding door 30 are provided with a protruding shaft 31, the protruding shaft 31 is rotatably assembled in the corresponding assembly notch 141, and the base 12 is installed in the installation opening 111 and limits the protruding shaft 31 in the assembly notch 141. Through this scheme, when assembling shielding door 30 to shell 10, can be earlier with shielding door 30's protruding axle 31 preassembled in the assembly breach 141, finally with base 12 lid dress in mounting hole 111, it is convenient to assemble, and overall structure stability is good after the assembly.

In addition to the compression spring, the restoring member 40 may be a torsion spring, a metal spring, or the like, and preferably, in some embodiments of the present utility model, the restoring member 40 is a restoring spring, and the restoring spring includes a connecting end 411 and an abutting end 412 that are disposed opposite to each other, where the connecting end 411 is clamped between the base 12 and a wall surface of the mounting hole 111, and the abutting end 412 abuts against an end of the shielding door 30 away from the protruding shaft 31. When the shielding door 30 is in the open state, the reset spring is extruded between the shielding door 30 and the base 12, so that the occupied space in the housing 10 is small, the integral miniaturization of the optical fiber adapter 100 is facilitated, and after the optical fiber connector is pulled out from the first port 13, the reset spring can quickly respond to reset the shielding door 30, and light leakage is avoided.

In the above-mentioned structure of the housing 10, the housing main body 11 and the base 12 may be made of the same material or different materials, and in general, the housing main body 11 and the base 12 are made of plastic materials, such as PBT plastic, which is durable and has a long service life, and may be made of PP plastic, ABS plastic, or the like, which is not limited herein.

The base 12 is mounted on the shell body 11 in various manners, and in some embodiments of the present utility model, the base 12 is provided with two clamping arms 124 respectively on two sides perpendicular to the axial direction of the connecting sleeve 20, and the two clamping arms 124 respectively clamp and clamp opposite sides of the shell body 11.

Further, the inner wall surface of the base 12 is formed with a recess 123, and the shield door 30 is accommodated in the recess 123 when the shield door 30 is in the open state. So configured, the fiber optic adapter 100 is more compact overall.

Referring to fig. 6, in some embodiments of the present utility model, a side wall surface of the mounting opening 111 near the first port 13 is provided with an assembling step 112, the assembling step 112 includes an angled plugging surface 1122 and a capping surface 1121, the plugging surface 1122 is provided with a plugging slot 1123, a notch of the plugging slot 1123 faces the direction opposite to the direction in which the first port 13 is provided, a first plugging flange 4111 is provided at an edge of the connecting end 411, a second plugging flange 121 is provided at one side of the base 12, and during assembling, the first plugging flange 4111 and the second plugging flange 121 are both inserted into the plugging slot 1123, so that the connecting end 411 is clamped between the base 12 and the capping surface 1121, and the assembling convenience and the structural stability are high.

In some embodiments of the present utility model, the cover pressing surface 1121 is provided with a limiting protrusion 1124, the connecting end 411 is provided with a first limiting hole 4112, the base 12 is provided with a second limiting hole 122 aligned with the first limiting hole 4112, and the limiting protrusion 1124 is clamped in the first limiting hole 4112 and the second limiting hole 122. This can further enhance the stability of the connection of the return spring and the base 12 to the case main body 11.

The resetting spring plate is generally made of metal, high in strength, long in service life and wear-resistant, and of course, can be made of plastic, and is not limited in this way.

In some embodiments of the present utility model, the fiber optic adapter 100 further includes a snap structure 50, the snap structure 50 being coupled within the housing 10, the snap structure 50 being configured to snap-fit a fiber optic connector that is mated to the connection sleeve 20. The main function of the fastening structure 50 is to fasten the optical fiber connector that is abutted to the connection sleeve 20, so as to ensure that the optical fiber connector is fixed in the adapter, and ensure the stability of optical signal transmission.

The buckle structure 50 may be implemented in various manners, and in some embodiments of the present utility model, the buckle structure 50 includes a protecting sleeve, the protecting sleeve is sleeved outside the connecting sleeve 20, and an annular clamping groove is formed on an end surface of the protecting sleeve facing the first port 13, where the annular clamping groove is used for clamping an external optical fiber connector.

Preferably, in some embodiments of the present utility model, the fastening structure 50 includes a base plate 51, a protective sleeve 52, and at least two clamping arms 53, where the base plate 51 is connected to the housing 10, the base plate 51 is provided with a relief hole for the connection sleeve 20 to pass through, one end of the protective sleeve 52 is connected to a surface of the base plate 51 facing the first port 13 and is nested outside the connection sleeve 20, and one end of the at least two clamping arms 53 is connected to a surface of the base plate 51 facing the first port 13 and is encircling the periphery of the protective sleeve 52 at intervals. According to the scheme, the protection sleeve 52 can protect the connecting sleeve 20, abrasion and pressure loss of the connecting sleeve 20 are avoided, the connecting sleeve can be fixed with the shell 10 through the base plate 51 in a threaded connection, clamping connection and other modes, in some embodiments of the utility model, the base plate 51 and the shell 10 are integrally formed, the stability of the whole structure is high, the assembly process is simplified, the stability of the connecting sleeve 20 can be effectively prevented from being influenced by assembly errors, at least two clamping arms 53 can be clamped on the periphery of the optical fiber connector, the stress of the optical fiber connector is balanced, and the whole structure after butt joint is stable. The number of the clamping arms 53 may be two, three, four or more, and the clamping arms 53 with arc-shaped cross sections may be adopted to adapt to the shape of the end of the optical fiber connector.

In some embodiments of the present utility model, the fiber optic adapter 100 further includes a leaf spring 70, wherein the leaf spring 70 is mounted to an outer wall surface of the housing 10 for snap-fit engagement with an external device.

The foregoing description is only exemplary embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the present utility model.

Claims (8)

1. A fiber optic adapter (100), comprising:

the device comprises a shell (10), wherein a first port (13) and a second port (16) are formed in two opposite sides of the shell (10);

The connecting sleeve (20) is arranged in the shell (10), two ends of the connecting sleeve (20) face the first port (13) and the second port (16) respectively, and the connecting sleeve (20) is used for connecting two optical fiber connectors;

A shielding door (30), wherein the shielding door (30) is movably connected with the wall surface of the first port (13), the shielding door (30) has an open state and a closed state, the shielding door (30) seals the first port (13) when the shielding door (30) is in the closed state, the first port (13) is exposed when the shielding door (30) is in the open state, and

A reset member (40), wherein one end of the reset member (40) is installed on the shell (10), and the other end of the reset member is connected with the shielding door (30), so that the shielding door (30) has a closing trend;

One side of the shielding door (30) is rotatably connected to a side wall surface of the first port (13), a stop step (151) is arranged on the side wall surface of the first port (13), and when the shielding door (30) is in a closed state, the periphery of the outer side surface of the shielding door (30) abuts against the stop step (151);

the shell (10) comprises a shell main body (11) and a base (12), the shell main body (11) is provided with the first port (13), and the connecting sleeve (20) is installed in the shell main body (11);

The shell main body (11) is provided with a mounting opening (111) on one wall surface between the connecting sleeve (20) and the first port (13), mounting notches (141) are respectively formed in two opposite side wall surfaces of the mounting opening (111), protruding shafts (31) are arranged on two opposite sides of the shielding door (30), the protruding shafts (31) are rotationally assembled in the corresponding mounting notches (141), and the base (12) is mounted on the mounting opening (111) and limits the protruding shafts (31) in the mounting notches (141).

2. The optical fiber adapter (100) according to claim 1, wherein the stopper step (151) is provided so as to extend obliquely so that the shielding door (30) is inclined in a direction away from the own rotation axis toward a direction approaching the connection sleeve (20) in the closed state.

3. The optical fiber adapter (100) according to claim 1, wherein the housing (10) is provided with accommodating grooves (15) recessed on both side wall surfaces of the shielding door (30) in the direction of the rotation axis, the stopper step (151) is a side groove wall of the accommodating groove (15) close to the first port (13), and both side edges of the shielding door (30) are respectively rotatably accommodated in both of the accommodating grooves (15).

4. The fiber optic adapter (100) of claim 1, wherein the reset member (40) is a reset spring, the reset spring includes a connecting end (411) and a propping end (412) disposed opposite to each other, the connecting end (411) is clamped between the base (12) and a wall surface of the mounting opening (111), and the propping end (412) is propped against an end of the shielding door (30) away from the protruding shaft (31).

5. The fiber optic adapter (100) of claim 4, wherein a side wall surface of the mounting port (111) adjacent to the first port (13) is provided as an assembly step (112), the assembly step (112) comprising an angled mating surface (1122) and a capping surface (1121), the mating surface (1122) being provided with a mating groove (1123), the mating groove (1123) having a notch facing in a direction opposite to the direction in which the first port (13) is provided;

The edge of the connecting end (411) is provided with a first inserting flange (4111), one side of the base (12) is provided with a second inserting flange (121), the first inserting flange (4111) and the second inserting flange (121) are inserted into the inserting groove (1123), and the connecting end (411) is clamped between the base (12) and the cover pressing surface (1121).

6. The fiber optic adapter (100) of claim 5, wherein the cap press surface (1121) is provided with a limiting protrusion (1124), the connection end (411) is provided with a first limiting hole (4112), the base (12) is provided with a second limiting hole (122) aligned with the first limiting hole (4112), and the limiting protrusion (1124) is clamped in the first limiting hole (4112) and the second limiting hole (122).

7. The fiber optic adapter (100) of any of claims 1-6, wherein the fiber optic adapter (100) further comprises a snap structure (50), the snap structure (50) being coupled within the housing (10), the snap structure (50) being adapted to snap-fit a fiber optic connector that is mated to the connection sleeve (20).

8. The fiber optic adapter (100) of claim 7, wherein the snap-fit structure (50) comprises a base plate (51), a protective sleeve (52) and at least two snap-fit arms (53), the base plate is connected with the housing, the base plate (51) is provided with a relief hole for the connection sleeve (20) to pass through, one end of the protective sleeve (52) is connected to one surface of the base plate (51) facing the first port (13) and is nested outside the connection sleeve (20);

One end of each clamping arm (53) is connected to one surface of the base plate (51) facing the first port (13), and surrounds the periphery of the protective sleeve (52) at intervals.