Optical fiber adapter

Abstract

The utility model discloses an optical fiber adapter, which comprises a shell, a connecting sleeve, a shielding door and a reset piece, and adopts the technical scheme that the shielding door is used for shielding a first port of the shell, and the shielding door has a closing trend under the action of the reset piece, so that the shielding door is always in a closed state when no external force is applied; on one hand, damage to human eyes caused by leakage of high-intensity infrared beams can be effectively prevented, and on the other hand, dust can be effectively prevented from entering the adapter, so that the optical transmission stability after optical fiber connection is ensured. Moreover, when the optical fiber connector is in butt joint with the first port, the optical fiber connector can directly abut against the shielding door and is inserted into the first port, in the process, the first port is always blocked, and infrared beams can also be prevented from leaking out, so that an operator does not need to wear a protective tool in the butt joint process, and the assembly convenience is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of optical fiber communication technology, especially relates to a kind of optical fiber adapters. BACKGROUND

[0002] Optical fiber adapter is a kind of equipment that can be used to connect different types or different interface standards optical fiber connectors, optical fiber adapter is connected by the port of its two ends optical fiber connector, realize the transmission of optical signal, optical fiber adapter is aligned the optical fiber of two independent optical cables, ensure the seamless transmission of optical signal.

[0003] Optical fiber adapter is divided into multiple types, such as LC type, SC type, FC type, ST type and so on, among them, optical fiber adapter is generally provided with detachable plug at two ends, especially common in SC type optical fiber adapter, plug can prevent dust from entering optical fiber adapter. Generally, in actual application, one end of optical fiber adapter is connected with an optical fiber connector, the other end is provided with plug, the plug can shield the high-intensity infrared beam emitted in the optical fiber, thereby preventing the eye from being exposed to the infrared beam for a long time and being damaged.

[0004] However, before the operator butts another optical fiber connector to the other end of the optical fiber adapter, the plug needs to be detached first, and in this process, the operator needs to protect the eyes by wearing protective glasses, there is a risk of eye injury due to improper operation of the operator, and it is not convenient enough, so it needs to be improved. UTILITY MODEL CONTENTS

[0005] The main purpose of the utility model is to provide an optical fiber adapter, to optimize the light leakage and dustproof performance of optical fiber adapter.

[0006] To achieve the above object, the utility model provides an optical fiber adapter, comprising:

[0007] The shell is provided with a first port and a second port on opposite sides thereof;

[0008] The connecting sleeve is arranged in the shell, and the two ends of the connecting sleeve are respectively directed to the first port and the second port, and the connecting sleeve is used for connecting two optical fiber connectors;

[0009] The shielding door is movably connected to the wall surface of the first port, and the shielding door has an open state and a closed state, wherein, when the shielding door is in the closed state, the shielding door blocks the first port, and when the shielding door is in the closed state, the first port is exposed; and

[0010] The reset member is installed at one end of the shell and connected to the other end of the shielding door, so that the shielding door has a tendency to close.

[0011] In some embodiments of the utility model, one side of shielding door is rotatably connected to one side wall of first port, the wall of first port is equipped with stop step, when shielding door is in closed state, the circumference of outside of shielding door abuts against stop step.

[0012] In some embodiments of the utility model, stop step is obliquely arranged, so that shielding door is inclined to the direction of approaching connecting sleeve in the direction of moving away from its rotating shaft in closed state.

[0013] In some embodiments of the utility model, the two side walls of the shell in the direction of rotating axis of shielding door are concavely provided with accommodating grooves, the stop step is the side groove wall of the accommodating groove close to the first port, and the two side edges of the shielding door are rotatably accommodated in the two accommodating grooves respectively.

[0014] In some embodiments of the utility model, the shell comprises a shell main body and a base, the shell main body is formed with the first port, and the connecting sleeve is installed in the shell main body.

[0015] The wall of the shell main body between the connecting sleeve and the first port is provided with a mounting opening, the opposite two side walls of the mounting opening are respectively provided with assembly notches, the opposite two sides of the shielding door are provided with convex shafts, the convex shafts are rotatably assembled in the corresponding assembly notches, and the base is installed in the mounting opening and limits the convex shafts in the assembly notches.

[0016] In some embodiments of the utility model, the reset member is a reset spring piece, the reset spring piece comprises oppositely arranged connecting end and abutting end, the connecting end is clamped between the base and the wall of the mounting opening, and the abutting end abuts against one end of the shielding door away from the convex shaft.

[0017] In some embodiments of the utility model, the side wall of the mounting opening close to the first port is provided with assembly step, the assembly step comprises angle insertion surface and cover surface, the insertion surface is provided with insertion groove, and the groove opening of the insertion groove is arranged in the direction opposite to the opening direction of the first port.

[0018] The edge of the connecting end is provided with first insertion flange, one side of the base is provided with second insertion flange, the first insertion flange and the second insertion flange are both inserted in the insertion groove, and the connecting end is clamped between the base and the cover surface.

[0019] In some embodiments of the utility model, the cover pressure surface is equipped with a limiting protrusion, the connecting end is equipped with a first limiting hole, the base is equipped with a second limiting hole which is in alignment with the first limiting hole, and the limiting protrusion is clamped in the first limiting hole and the second limiting hole.

[0020] In some embodiments of the utility model, the fiber adapter further comprises a buckle structure, the buckle structure is connected in the shell, and the buckle structure is used for clamping a fiber connector which is connected to the connecting sleeve.

[0021] In some embodiments of the utility model, the buckle structure comprises a base plate, a protective sleeve and at least two clamping arms, the base plate is connected with the shell, the base plate is equipped with a clearance hole for the connecting sleeve to pass through, one end of the protective sleeve is connected to one side of the base plate towards the first port and is nested outside the connecting sleeve;

[0022] One end of the at least two clamping arms is connected to one side of the base plate towards the first port and is spaced around the outer periphery of the protective sleeve.

[0023] The technical scheme of the utility model adopts a shielding door to shield the first port, the shielding door has a tendency to close under the action of the reset member, therefore, when no external force is applied, the shielding door is always in a closed state, on the one hand, it can effectively prevent high-intensity infrared light beams from leaking out and causing harm to the human eye, on the other hand, it can effectively prevent dust from entering the adapter interior, thereby ensuring the stability of optical transmission after fiber connection. Furthermore, when the fiber connector is connected to the first port, the fiber connector can be directly abutted against the shielding door and inserted into the first port, in this process, the first port is always blocked, and the leakage of infrared light beams is also prevented, so the operator does not need to wear protective equipment during the connection process, thereby greatly improving the assembly convenience. BRIEF DESCRIPTION OF DRAWINGS

[0024] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced below, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained from the structures shown in these drawings without creative labor.

[0025] Figure 1 The structural schematic diagram of one embodiment of the fiber adapter provided by the utility model;

[0026] Figure 2 The exploded view of one embodiment of the fiber adapter provided by the utility model;

[0027] Figure 3The utility model provides a cross section view of one embodiment of optical fiber adapter provided by the utility model,

[0028] Figure 4 The cross section view of one embodiment of optical fiber adapter provided by the utility model under another visual angle,

[0029] Figure 5 The exploded view of part structure in the optical fiber adapter provided by the utility model,

[0030] Figure 6 For Figure 5 The enlarged view of A in the figure.

[0031] Explanation of reference numerals:

[0032] 100, optical fiber adapter;10, shell;11, shell main body;111, mounting port;112, assembly step;1121, cover pressing surface;1122, plug-in surface;1123, plug-in groove;1124, limiting protrusion;12, base;121, second plug-in flange;122, second limiting hole;123, avoiding recess;124, clamping arm;13, first port;141, assembly gap;15, containing groove;151, stop step;16, second port;20, connecting sleeve;30, shielding door;31, convex shaft;40, reset member;411, connecting end;4111, first plug-in flange;4112, first limiting hole;412, abutting end;50, buckle structure;51, base plate;52, protective sleeve;53, clamping arm;60, plug;70, leaf spring.

[0033] The realization, functional characteristics and advantages of the utility model will be further explained by combining with the embodiments and referring to the drawings. DETAILED DESCRIPTION

[0034] The technical scheme in the embodiments of the utility model will be clearly and completely described below by combining with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model.

[0035] It should be noted that if the embodiments of the utility model involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between the components in a certain posture, if the certain posture changes, the directional indications also change accordingly.

[0036] In addition, if the description of "first", "second" and the like is involved in the embodiments of the utility model, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one feature. In addition, if "and / or" or "and / or" appears in the whole text, it means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary technical personnel, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0037] Please refer to Figures 1 to 5 The utility model proposes a kind of optical fiber adapter 100, including shell 10, connecting sleeve 20, shielding door 30 and reset piece 40, wherein, first port 13 and second port 16 are set in the opposite sides of the shell 10;Connecting sleeve 20 is located in the shell 10, the two ends of the connecting sleeve 20 are respectively towards the first port 13 and the second port 16, and the connecting sleeve 20 is used to connect two optical fiber connectors;The wall surface of the first port 13 is movably connected with the shielding door 30, the shielding door 30 has open state and closed state, when the shielding door 30 is in closed state, the shielding door 30 blocks the first port 13, when the shielding door 30 is in closed state, the first port 13 is exposed;One end of the reset piece 40 is installed on the shell 10, and the other end is connected to the shielding door 30, so that the shielding door 30 has the tendency of closing.

[0038] The technical scheme of the utility model shields the first port 13 by shielding door 30, and the shielding door 30 has the tendency of closing under the action of reset piece 40, so that the shielding door 30 is always in closed state when there is no external force, on the one hand, it can effectively prevent high-intensity infrared beam from leaking out and causing harm to human eyes, on the other hand, it can effectively prevent dust from entering the adapter, and ensure the stability of optical transmission after optical fiber connection. And when the optical fiber connector is butted to the first port 13, the optical fiber connector can be directly abutted to the shielding door 30 and inserted into the first port 13, in this process, the first port 13 is always blocked, and the leakage of infrared beam is also prevented, so that the operator does not need to wear protective equipment during the butting process, greatly improving the assembly convenience.

[0039] The connecting sleeve 20 plays a role of fiber alignment in the fiber adapter 100, and is generally made of ceramic material, which has good thermal stability, high hardness, high melting point and wear resistance. The second port 16 and the internal structure thereof of the fiber adapter 100 can be symmetrically arranged with the first port 13, or a plug 60 can be used.

[0040] The shielding door 30 can be installed in the shell 10 in various ways. In some embodiments of the present application, a slide hole is formed in a side wall of the shell 10 at the first port 13, and the shielding door 30 is slidingly installed in the slide hole. The reset member 40 is a reset compression spring. Under the action of the reset compression spring, the shielding door 30 is slidingly closed to cover the first port 13. When the fiber connector is connected to the first port 13, the shielding door 30 can be pulled open for connection. Further, the outer side of the shielding door 30 can be formed as a guide inclined surface. In this way, the fiber connector can be directly abutted against the guide inclined surface, and the shielding door 30 is slidingly opened under pressure, which is convenient for assembly.

[0041] In order to improve the light shielding property and dustproof performance of the shielding door 30, in some embodiments of the present application, one side of the shielding door 30 is rotationally connected to a side wall of the first port 13. The wall of the first port 13 is provided with a stop step 151. When the shielding door 30 is in a closed state, the outer side 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 of the first port 13. Therefore, light can be effectively prevented from leaking out of the gap between the shielding door 30 and the inner wall of the shell 10, and dust is also less likely to enter the shell 10.

[0042] In order to further facilitate the connection of the fiber connector, in some embodiments of the present application, the stop step 151 is obliquely arranged so that the shielding door 30 is inclined in a direction away from the rotation axis thereof and towards the connecting sleeve 20 when in the closed state. In this way, when the fiber connector is inserted into the first port 13, the operator's pushing stroke can be reduced, thereby facilitating the connection.

[0043] The limiting step can be implemented in various ways. For example, the limiting step can be a protrusion provided on the inner wall of the shell 10. Preferably, in some embodiments of the present application, the two side walls of the shell 10 in the direction of the rotation axis of the shielding door 30 are concavely provided with accommodating grooves 15. The stop step 151 is a side groove wall of the accommodating groove 15 close to the first port 13. The two side edges of the shielding door 30 are rotationally accommodated in the two accommodating grooves 15, respectively. In this way, the overall structure of the fiber adapter 100 is more compact, and the shielding door 30 can be effectively limited in the accommodating groove 15, thereby having higher structural stability.

[0044] Further, in some embodiments of the utility model, the accommodating groove 15 is arranged as a fan shape, so that the accommodating groove 15 is more suitable for the shielding door 30.

[0045] The shell 10 of the fiber adapter 100 is generally arranged as a split structure, and can be divided into two, three or more than three detachable parts, so that the shielding door 30 is convenient to assemble and fix. Preferably, in some embodiments of the utility model, the shell 10 comprises a shell main body 11 and a base 12, the shell main body 11 is formed with the first port 13, and the connecting sleeve 20 is installed in the shell main body 11; a mounting opening 111 is formed in a wall surface between the connecting sleeve 20 and the first port 13 of the shell main body 11, and assembly notches 141 are respectively formed in the opposite two side wall surfaces of the mounting opening 111; the opposite two sides of the shielding door 30 are provided with convex shafts 31, the convex shafts 31 are rotatably assembled in the corresponding assembly notches 141, and the base 12 is installed in the mounting opening 111 and limits the convex shafts 31 in the assembly notches 141. Through the scheme, when the shielding door 30 is assembled to the shell 10, the convex shafts 31 of the shielding door 30 can be pre-assembled in the assembly notches 141 first, and finally the base 12 is covered on the mounting opening 111, so that the assembly is convenient, and the overall structure is stable after assembly.

[0046] In addition to the compression spring, the reset member 40 can also be a torsion spring, a metal spring piece, etc. Preferably, in some embodiments of the utility model, the reset member 40 is a reset spring piece, which comprises oppositely arranged connecting ends 411 and abutting ends 412, the connecting ends 411 are clamped between the base 12 and the wall surface of the mounting opening 111, and the abutting ends 412 abut one end of the shielding door 30 away from the convex shaft 31. In this way, when the shielding door 30 is in an open state, the reset spring piece is pressed between the shielding door 30 and the base 12, which occupies less space in the shell 10, is conducive to the miniaturization of the overall fiber adapter 100, and after the fiber connector is pulled out of the first port 13, the reset spring piece can quickly respond to reset the shielding door 30, avoiding light leakage.

[0047] In the structure of the shell 10, the shell main body 11 and the base 12 can be made of the same material or different materials. Generally, the shell 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. PP plastic, ABS plastic, etc. can also be used, which is not limited here.

[0048] There are various ways to install the base 12 on the shell main body 11. In some embodiments of the utility model, the base 12 is provided with clamping arms 124 on both sides perpendicular to the axis direction of the connecting sleeve 20, and the clamping arms 124 are clamped on the opposite two sides of the shell main body 11.

[0049] Further, the inner wall surface of the base 12 is formed with a recess 123, and the shielding door 30 is accommodated in the recess 123 when the shielding door 30 is in the open state. In this way, the optical fiber adapter 100 is more compact as a whole.

[0050] Please refer to Figure 6 In some embodiments of the present application, the mounting port 111 is provided with a fitting step 112 on one side wall surface close to the first port 13, the fitting step 112 includes an angled insertion surface 1122 and a cover surface 1121, the insertion surface 1122 is provided with an insertion slot 1123, and the slot opening of the insertion slot 1123 is arranged in a direction opposite to the opening direction of the first port 13; the edge of the connecting end 411 is provided with a first insertion flange 4111, and one side of the base 12 is provided with a second insertion flange 121; during assembly, the first insertion flange 4111 and the second insertion flange 121 are both inserted into the insertion slot 1123, so that the connecting end 411 is clamped between the base 12 and the cover surface 1121, which is convenient for assembly and has good structural stability.

[0051] In some embodiments of the present application, the cover surface 1121 is provided with a limiting protrusion 1124, the connecting end 411 is provided with a first limiting hole 4112, and the base 12 is provided with a second limiting hole 122 which is 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. In this way, the stability of the reset spring, the base 12 and the shell main body 11 can be further improved.

[0052] The reset spring is generally made of metal material, which has high strength, long service life and wear resistance. Of course, it can also be made of plastic material, which is set according to specific conditions, and is not limited here.

[0053] In some embodiments of the present application, the optical fiber adapter 100 further comprises a buckle structure 50 connected in the shell 10, and the buckle structure 50 is used for clamping the optical fiber connector connected to the connecting sleeve 20. The main function of the buckle structure 50 is to clamp the optical fiber connector connected to the connecting sleeve 20, to ensure that the optical fiber connector is fixed in the adapter and to ensure the stability of optical signal transmission.

[0054] There are various specific embodiments of the buckle structure 50, and in some embodiments of the present application, the buckle structure 50 includes a protective sleeve, the protective sleeve is sleeved outside the connecting sleeve 20, and the end surface of the protective sleeve facing the first port 13 is provided with an annular clamping groove, and the annular clamping groove is used for clamping the external optical fiber connector.

[0055] Preferably, in some embodiments of the utility model, the buckle structure 50 includes base plate 51, protective sleeve 52 and at least two clamping arms 53, the base plate 51 is connected with the shell 10, the base plate 51 is set with the hole for the connecting sleeve 20 to pass through, one end of the protective sleeve 52 is connected to the side of the base plate 51 towards the first port 13, and is nested outside the connecting sleeve 20, one end of at least two clamping arms 53 is connected to the side of the base plate 51 towards the first port 13, and is spaced around the circumference of the protective sleeve 52. The above-mentioned scheme can protect the connecting sleeve 20 by the protective sleeve 52, avoid the abrasion and pressure damage of the connecting sleeve 20, and can be fixed with the shell 10 by the base plate 51 in the form of screw connection, clamping and the like, in some embodiments of the utility model, the base plate 51 is integrally formed with the shell 10, the overall structure is high in stability, is favorable for simplifying the assembly process, and can effectively avoid the influence of assembly error on the stability of the connecting sleeve 20, at least two clamping arms 53 can be clamped on the side of the fiber connector, and the overall structure after butt joint is stable. The number of the clamping arms 53 can be two, three, four or more, and the clamping arm 53 in the form of arc cross section can be adopted to adapt to the shape of the end of the fiber connector.

[0056] In some embodiments of the utility model, the fiber adapter 100 further includes a leaf spring 70, which is installed on the outer wall of the shell 10 and used for clamping and fixing with external equipment.

[0057] The above-mentioned is only the exemplary embodiment of the utility model, and does not limit the patent range of the utility model, and any equivalent structural transformation made by the utility model specification and the attached drawings, or direct / indirect application in other related technical fields under the technical concept of the utility model is included in the patent protection range of the utility model.

Claims

1. An optical fiber adapter (100) characterized by, The utility model relates to a fiber optic connector, comprising: a housing (10) having a first port (13) and a second port (16) formed on opposite sides of the housing (10); a connecting sleeve (20) disposed in the housing (10) and having two ends respectively facing the first port (13) and the second port (16), the connecting sleeve (20) being configured to connect two fiber optic connectors; a shielding door (30) movably connected to a wall surface of the first port (13), the shielding door (30) having an open state and a closed state, the shielding door (30) blocking the first port (13) when the shielding door (30) is in the closed state, and the first port (13) being exposed when the shielding door (30) is in the open state; and a reset member (40) having one end mounted on the housing (10) and the other end connected to the shielding door (30) so that the shielding door (30) has a tendency to close. One side of the shielding door (30) is rotatably connected to one side wall of the first port (13), and the wall surface of the first port (13) is provided with a stop step (151), the outer side surface of the shielding door (30) abutting against the stop step (151) when the shielding door (30) is in the closed state. The housing (10) comprises a housing body (11) and a base (12), the housing body (11) is formed with the first port (13), and the connecting sleeve (20) is mounted in the housing body (11). A mounting opening (111) is formed on a wall surface between the connecting sleeve (20) and the first port (13) of the housing body (11), opposite side wall surfaces of the mounting opening (111) are respectively provided with assembly notches (141), opposite sides of the shielding door (30) are provided with protruding shafts (31), the protruding shafts (31) are rotatably assembled in the assembly notches (141), and the base (12) is mounted on the mounting opening (111) and limits the protruding shafts (31) in the assembly notches (141).

2. The fiber optic adapter (100) of claim 1, wherein, The stop step (151) is obliquely arranged so that the shielding door (30) is inclined towards the connecting sleeve (20) in the direction away from the rotation axis of the shielding door (30) when the shielding door (30) is in the closed state.

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

4. The fiber optic adapter (100) of claim 1, wherein, The reset member (40) is a reset spring piece, the reset spring piece comprises oppositely arranged connecting ends (411) and abutting ends (412), the connecting ends (411) are clamped between the base (12) and the wall surface of the mounting opening (111), and the abutting ends (412) abut against one end of the shielding door (30) away from the protruding shafts (31).

5. The fiber optic adapter (100) of claim 4, wherein, The mounting port (111) is provided with a fitting step (112) on one side wall surface close to the first port (13), the fitting step (112) comprises an angled plug surface (1122) and a cover surface (1121), the plug surface (1122) is provided with a plug slot (1123), and the slot opening of the plug slot (1123) is arranged in a direction opposite to the opening direction of the first port (13); An edge of the connecting end (411) is provided with a first plug flange (4111), one side of the base (12) is provided with a second plug flange (121), the first plug flange (4111) and the second plug flange (121) are both inserted into the plug slot (1123), and the connecting end (411) is clamped between the base (12) and the cover surface (1121).

6. The fiber optic adapter (100) of claim 5, wherein, The cover 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) in registration 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 one of claims 1-6, wherein, The fiber optic adapter (100) further comprises a buckle structure (50) connected in the shell (10), and the buckle structure (50) is used for clamping a fiber optic connector connected to the connecting sleeve (20).

8. The fiber optic adapter (100) of claim 7, wherein, The buckle structure (50) comprises a base plate (51), a protective sleeve (52) and at least two clamping arms (53), the base plate is connected with the shell, the base plate (51) is provided with an avoiding hole for the connecting sleeve (20) to pass through, one end of the protective sleeve (52) is connected to one side of the base plate (51) facing the first port (13) and is nested outside the connecting sleeve (20); One end of at least two clamping arms (53) is connected to one side of the base plate (51) facing the first port (13) and is spaced around the outer periphery of the protective sleeve (52).

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