WO2018023837A1 - 光纤连接器 - Google Patents

光纤连接器 Download PDF

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Publication number
WO2018023837A1
WO2018023837A1 PCT/CN2016/095686 CN2016095686W WO2018023837A1 WO 2018023837 A1 WO2018023837 A1 WO 2018023837A1 CN 2016095686 W CN2016095686 W CN 2016095686W WO 2018023837 A1 WO2018023837 A1 WO 2018023837A1
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WO
WIPO (PCT)
Prior art keywords
fiber optic
adapter
optical fiber
connector
core
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PCT/CN2016/095686
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English (en)
French (fr)
Inventor
张德胜
陈代根
沈爱辉
计芳
王竹平
Original Assignee
罗森伯格（上海）通信技术有限公司
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Application filed by 罗森伯格（上海）通信技术有限公司 filed Critical 罗森伯格（上海）通信技术有限公司
Publication of WO2018023837A1 publication Critical patent/WO2018023837A1/zh

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    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/24—Coupling light guides
    • G02B6/36—Mechanical coupling means
    • G02B6/38—Mechanical coupling means having fibre to fibre mating means

Definitions

  • the utility model relates to the technical field of optical fiber communication, in particular to a fiber optic connector which can be used in a harsh outdoor environment.
  • optical fiber communication With the continuous development of optical fiber communication, the application of optical fiber communication is more and more extensive, and its application fields are all in the fields of communication, transportation, industry, medical care, education, aerospace and computer, and are developing to a wider and deeper level.
  • optical fiber connectors are used as an indispensable part of optical fiber communication in various occasions, such as outdoor occasions and indoor occasions.
  • the outdoor environment is complex and variable, such as rain, dust, ultraviolet radiation, and mice, which will cause some damage to the fiber optic connectors placed outdoors.
  • fiber optic connectors need to be waterproof, dustproof, and UV resistant, and have good weather resistance requirements.
  • Chinese patent CN 204666870 U discloses a high protection grade MPO fiber optic connector comprising a socket and a plug, the socket and the plug being screwed, the socket comprising a socket ferrule, a socket plastic bracket, a rectangular seal, Socket housing, first sealing member; the plug includes a plug sleeve, a plug plastic bracket, a plug ferrule, a second seal, a C-ring, a third seal, a plug housing, a cable fixing member, a gran Head and cable bending parts.
  • the high-protection MPO fiber optic connector has certain waterproof and dustproof functions, it can only be connected with the matched fiber optic components, and cannot be docked with the international standard common connector, and the connector assembly is cumbersome.
  • Chinese Patent No. CN 102401951 A discloses a multi-core optical fiber connector in which the connector and the branch portion are protected in the outer casing, and multi-core connection requirements can be realized, but the same The use of special components and the inability to interface with international standard connectors limits the scope of use of the product.
  • the Chinese patent CN 201707478 U discloses a fiber optic connector for outdoor use of a communication system, which is connected with an adapter flange to protect the internal fiber optic adapter, and the adapter flange must be installed on a waterproof protective box, most What is important is that the fiber optic connector disclosed in the Chinese patent CN 201707478 U can only support the standard LC connection protection of 2 cores, which cannot meet the multi-core connection requirements.
  • the utility model aims to overcome the defects of the prior art and to provide a multi-core optical fiber connector with waterproof, dustproof, ultraviolet radiation-proof performance and good weather resistance, and can also be combined with various international standards.
  • the interface is connected.
  • a fiber optic connector comprising a multi-core fiber optic adapter assembly, and a guard assembly that interfaces with the multi-core fiber optic adapter assembly;
  • the multi-core fiber optic adapter assembly includes a tail sheath, a base interposed with the tail sheath, a multi-core pre-end fiber optic adapter connected to the base, and a sleeve disposed on the multi-core pre-end fiber optic adapter.
  • the protection assembly includes an inner support clamping member, a connecting member, and a second protective outer casing.
  • the inner support clamping member is disposed inside the second protective outer casing
  • the connecting member is disposed inside the second protective outer casing and sleeved therein. Supporting the clamping member, the connecting member is provided with a second locking mechanism that is cooperatively locked with the first locking mechanism.
  • the multi-core pre-end fiber optic adapter comprises a plurality of pre-terminated fiber optic connectors, an adapter interposed with the pre-wired fiber optic connector, and an adapter card socket interposed with the adapter, the adapter card holder being provided with an adapter Multiple adapter adapter holes.
  • the first locking mechanism is a self-locking boss disposed on the first protective casing
  • the second locking mechanism is a self-locking limiting groove disposed on an inner wall of the connecting member, the self-locking boss Restricted In the self-locking limit slot.
  • the first protective casing is further provided with a second anti-rotation limiting groove
  • the inner supporting clamping member is provided with a second anti-rotation coupled with the second anti-rotation limiting groove.
  • Limit boss is provided on the first protective casing.
  • the base is provided with a first external thread
  • the first protective casing is provided with a first internal thread matched with the first external thread
  • the base is provided with a first annular groove, and the first annular groove is provided with a first annular sealing ring for waterproofing.
  • the multi-core fiber optic adapter assembly further includes a dust cover that is sleeved on the first protective casing.
  • the inner support clamping member is further provided with a second external thread
  • the second protective casing is provided with a second internal thread matched with the second external thread
  • the inner support clamping member is provided with a second annular groove, and the second annular groove is provided with a second annular sealing ring for waterproofing.
  • the inner support clamping member is sleeved with a wave washer that prevents the connector from sliding off.
  • the inner support clamping member is provided with a waterproof sealing flat pad at the interface with the first protective outer casing.
  • the guard assembly further includes a porous seal disposed within the inner support clamp, the porous seal being provided with a plurality of fiber optic perforations matching the fibers, the fibers being provided with side slots.
  • the inner support clamp is provided with a plurality of jaws for squeezing the porous seal.
  • the optical fiber connector of the utility model has the functions of waterproofing, dustproofing, ultraviolet radiation protection, good weather resistance, and can meet the requirements of multi-core connection, and can be connected, installed, and connected with an international standard connector. Easy and quick to disassemble.
  • Figure 1 is a front view of the utility model
  • FIG. 2 is a schematic exploded view of the multi-core fiber optic adapter assembly of the present invention
  • Figure 3 is a schematic view showing the bursting of the protective component of the present invention.
  • Figure 4 is a perspective view of the adapter of the present invention.
  • Figure 5 is a perspective view of the adapter card holder of the present invention.
  • Figure 6 is a perspective view of the base of the utility model
  • Figure 7 is a perspective view showing the first protective casing of the present invention.
  • Figure 8 is a perspective view of the dust cover of the present invention.
  • FIG. 9 is a schematic view showing the combination of the dust cover and the multi-core fiber optic adapter assembly of the present invention.
  • Figure 10 is a perspective view of the inner support clamping member of the present invention.
  • Figure 11 is a perspective view of the porous seal and rubber stopper of the present invention.
  • Figure 12 is a perspective view of the connecting member of the present invention.
  • Figure 13 is a perspective view showing the second protective casing of the present invention.
  • Figure 14 is a cross-sectional view showing the combination of the multi-core fiber optic adapter assembly and the guard assembly of the present invention.
  • a multi-core fiber optic connector disclosed in the present invention includes a multi-core fiber optic adapter assembly 1 and a guard assembly 2 that interfaces with the multi-core fiber optic adapter assembly 1.
  • the multi-core fiber optic adapter assembly 1 includes a tail sheath 11 , a base 12 interposed with the tail sheath 11 , a multi-core pre-end fiber optic adapter 13 connected to the base 12 , and a sleeve disposed on the multi-core
  • the first protective casing 14 is connected to the base 12 on the pre-end fiber optic adapter 13, and the first protective casing 14 is provided with a first locking mechanism.
  • the guard assembly 22 includes an inner support clamping member 21, a connecting member 22 and a second protective outer casing 23, the inner support clamping member 21 being located inside the second protective outer casing 23, and the connecting member 22 being located
  • the second protective casing 23 is internally disposed on the inner support clamping member 21, and the connecting member 22 is provided with a second locking mechanism, and the multi-core optical fiber adapter assembly 1 and the protective component 2 pass the first lock The fastening mechanism and the second locking mechanism are lockedly connected.
  • the multi-core pre-end fiber optic adapter 13 includes a plurality of pre-terminated fiber optic connectors 131, an adapter 132 interposed with the pre-end fiber optic connector 131, and an adapter card holder 133 that is interposed with the adapter 132.
  • the pre-end fiber optic connector 131 is an LC fiber optic connector of an international standard. In other embodiments, a connector conforming to other standards, such as an MPO type, may also be selected.
  • the adapter 132 is a hollow square housing, and the adapter 132 has two connector sockets, wherein one end socket (defined as the first socket 1321 in this embodiment) is used to insert the pre-end fiber connection.
  • the other end socket (defined as the second socket 1322 in this embodiment) is used to insert the terminal fiber connector 20, thereby achieving communication of the optical path.
  • Terminal fiber The connector 20 is disposed within the shield assembly 2.
  • the adapter 132 has a top side wall, a bottom side wall, a left side wall, and a right side wall, wherein the left side wall is opposite to the right side wall and is connected to the top side wall and the bottom side wall, the left side wall and the right side wall A symmetric stop 1323 and an elastic card 1324 are provided thereon.
  • the adapter card holder 133 includes an adapter body 1331, and two symmetric extending sidewalls 1332 extending from the adapter body 1331.
  • the free end of the extension sidewall 1332 is provided with a first anti-rotation.
  • the limiting protrusion 1333, the extending side wall 1332 extending from the body of the adapter card 133 is only present on both sides of the adapter card holder 133, and can expose the adapter 132 and the pre-end fiber connector 131 inside the adapter card holder for facilitating the adapter. Assembly and disassembly with adapter card holder.
  • the adapter body 1331 is provided with an adapter opening 1334 that cooperates with the second socket 1322 of the adapter 132, and a card slot 1335 that cooperates with the elastic card 1324 on the adapter.
  • the adapter opening 1334 can respectively fix the 2-core adapter and the 4-core adapter, thereby implementing a multi-core adapter connection, and more adapter apertures 1334 can be provided according to actual needs.
  • the elastic card 1324 on the adapter 132 is The card slot 1335 on the adapter cooperates to ensure the fastening of the adapter 132 and the adapter card holder 133. At the same time, the stopper portion 1323 on the adapter 132 abuts against the end surface of the adapter card holder 133 to prevent the adapter 132 from sliding.
  • the susceptor 12 connected to the multi-core pre-end fiber optic adapter 13 includes a first body 121 and a second body 122 connected to each other.
  • the first body 121 has a hollow cylindrical structure.
  • a first anti-rotation limit groove 123 is disposed on the inner wall of the first body 121 to cooperate with the first anti-rotation limit protrusion 1333 of the adapter card holder 133. When assembled, the first anti-rotation limit boss The 1333 cooperates with the first anti-rotation limit groove 123 to prevent the multi-core pre-end fiber adapter 13 from rotating.
  • the outer wall of the first body 121 is provided with a first external thread 124 and a first annular groove 125 for placing a waterproof first annular sealing ring 126.
  • the second body 122 is inserted into one end of the tail sheath 11 and is formed with a gap.
  • the gap is provided with a crimping ring 127 for fixing the aramid yarn on the optical fiber to the second body 122.
  • the first shielding shell 14 is a hollow cylinder structure, and the inner wall of the end portion connected to the base 12 is provided with a first internal thread 141 , and the first internal thread 141 and the first body 121 An external thread 124 cooperates to secure the first shield shell 14 to the base 12 to protect the multi-core pre-tip fiber optic adapter 13 within the first shield shell.
  • the outer wall of the first protective casing 14 is provided with a fixing surface 142 through which the combined multi-core adapter assembly can be fixed to the mounting plate.
  • a first locking mechanism is disposed on the end of the first protective casing 14 connected to the shielding component 2.
  • the first locking mechanism is a plurality of self-locking bosses 143, a locking direction indication, and a number A second anti-rotation limiting groove 144 between the self-locking bosses 143.
  • the multi-core fiber optic adapter assembly 1 further includes a dust cover 15 sleeved on the first protective casing 14.
  • the dust cover 15 is provided with a plurality of locking grooves 150 matching with the self-locking bosses 143 on the first shielding shell 14, the locking grooves including the first slotted inlets 151 connected thereto, The first inclined groove 152 and the first fixing groove 153.
  • the outer wall of the dustproof cover 15 is provided with a direction indicating arrow, and the direction indicating arrow is at the same position as the inner slotted inlet.
  • FIG. 9 is a schematic view showing the combination of the dust cover 15 and the multi-core fiber optic adapter assembly 1.
  • the inner support clamping member 21 is a hollow cylinder structure, and the end portion connected to the multi-core fiber optic adapter assembly 1 is provided with a plurality of second anti-rotation limit bosses 211, and the second anti-rotation The rotation limiting boss 211 is matched with the second anti-rotation limiting groove 144 on the first shielding shell 14. More preferably, when the inner support clamping member 21 is mated with the first protective outer casing 14, the docking portion is provided with a waterproof sealing flat pad 154 for waterproofing and protecting the inner optical fiber. A second external thread 212 is provided on the outer wall of the other end of the inner support clamping member 21.
  • the inner support clamping member 21 is further provided with a second annular groove 213, and the second annular groove 213 is provided with a second annular sealing ring 214 for waterproofing.
  • the end of the inner support clamping member 21 is provided with a plurality of claws 215.
  • the claws 215 are provided with a porous sealing member 216.
  • the porous sealing member 216 is provided with a plurality of optical fiber perforations 2161 matched with the optical fibers. In this embodiment, three fiber perforations 2161 are preferred.
  • Each of the fiber optic perforations 2161 is provided with a slot 2162 for accommodating a common fiber optic patch cord from any manufacturer into the fiber optic puncturing 2161 from the slot 2162.
  • the rubber plugs 217 can be used to plug the unused fiber optic holes 2161 of the porous sealing member 216 to achieve a state of dissatisfaction. water-proof.
  • a second locking mechanism is disposed on the inner side of the connecting member 22 of the inner supporting clamping member 21.
  • the second locking mechanism is a self-locking limiting slot 221.
  • the self-locking limiting slot 221 cooperates with the self-locking boss 143 on the first shielding shell 14 to realize the locking of the multi-core fiber optic adapter assembly 1 and the shielding assembly 2.
  • the self-locking limiting slot 221 includes a second slotted inlet 2211, a second inclined slot 2212, and a second fixed slot 2213.
  • the outer wall of the connecting member 22 is provided with a direction indicating arrow, and the direction indicating arrow is at the same position as the inner second slotted inlet 2211.
  • the connecting member 22 is guided by the direction indicating arrow to the first protective casing 14 of the multi-core fiber optic adapter assembly 1 and the rotating connecting member 22 is indicated according to the locking direction.
  • the self-locking boss 143 is in the self-locking limiting slot of the connecting member 22.
  • the inner edge of the second inclined groove 2212 travels, the connecting member 22 is gradually locked, and when the self-locking boss 143 travels to the end of the self-locking limiting groove 221, the second fixing groove 2213 can be engaged with the second fixing groove 2213, so that the connecting member 22 can be rotated. Tightly attached to the housing.
  • the connector 22 can be unlocked by rotating the connector 22 in the opposite direction.
  • a wave washer 24 is provided between the connecting member 22 and the inner support clamping member 21, and due to the compression deformation, a repulsive force can be provided to prevent the connecting member 22 from being naturally released from the first protective outer casing 14.
  • the second protective casing 23 is sleeved on the inner support clamping member 21, and the inner wall is provided with a second inner portion that cooperates with the second outer thread 212 of the inner support clamping member 21.
  • Thread 231 the second internal thread of the second protective casing 23 cooperates with the second external thread on the inner support clamping member 21, and is screwed onto the inner support clamping member 21 to prevent the sleeve from being clamped on the inner support.
  • the connecting member 22 located inside the second protective casing 23 slides down.
  • the second protective casing 23 is provided with an inclined portion 232 which, when tightened, presses the claw 215 on the inner supporting clamping member 21 to deform the inner porous sealing member 216 to lock the optical fiber.
  • the inner wall of the second protective casing is in close contact with the second annular sealing ring 214 to prevent water from entering between the second protective casing 23 and the inner supporting clamping member 21.
  • Figure 14 is a cross-sectional view showing the combination of the multi-core fiber optic adapter assembly 1 and the shield assembly 2.
  • the core fiber optic adapter assembly 1 After the core fiber optic adapter assembly 1 is assembled, it is docked with the terminal fiber connector 20 and the inner support clamping member 21 in the shield assembly 2, and is locked by the connector while the second shield shell 23 and the inner support clamp member 21 are rotated. Tightly, the connector 22 and the inner support clamping member 21 are all protected. Before the second protective casing 23 is rotated out, that is, before the pressure of the porous sealing member 216 is released, the connecting member 22 cannot be operated, and it is possible to prevent the connector 22 from being erroneously unlocked when the optical fiber is not unlocked during use. The core pre-end fiber optic adapter 13 is stressed to cause damage to the multi-core pre-end fiber optic adapter 13.
  • the optical fiber connector of the utility model has good weather resistance, can be waterproof, dustproof and anti-ultraviolet radiation, can meet the requirement of multi-core connection, and can be plugged and used, and can be docked with an international standard interface.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mechanical Coupling Of Light Guides (AREA)

Abstract

一种光纤连接器，包括多芯光纤适配器组件(1)，以及与多芯光纤适配器组件(1)相对接的防护组件(2)；所述多芯光纤适配器组件(1)包括尾护套(11)、与尾护套(11)相插接的基座(12)、与基座(12)相连接的多芯预端光纤适配器(13)，以及套设在所述多芯预端光纤适配器(13)上、与基座(12)相连接的第一防护外壳(14)；所述防护组件(2)包括内支撑夹紧件(21)、连接件(22)、第二防护外壳(23)，所述内支撑夹紧件(21)设于第二防护外壳(23)的内部，连接件(22)设于第二保护外壳(23)内部且套设在所述内支撑夹紧件(21)上。该光纤连接器具有良好的耐候性，能够防水、防尘、防紫外线辐射，并且能够满足多芯连接需求，且安装与拆卸方便、快捷，即插即用。

Description

光纤连接器 技术领域
本实用新型涉及一种光纤通信技术领域，尤其涉及一种可在室外恶劣的环境中使用的光纤连接器。
背景技术
随着光纤通信的不断发展，光纤通信的应用越来越广泛，其应用领域遍及通信、交通、工业、医疗、教育、航空航天和计算机等行业，并正在向更广更深的层次发展。
随着光纤通信的应用范围不断拓展，光纤连接器作为光纤通信中必不可少的一部分被应用到各种场合，如室外场合、室内场合等。室外环境复杂多变，如雨水、灰尘、紫外线辐射、老鼠等都会对放置在室外的光纤连接器产生一定的破坏作用。为了应对室外恶劣的环境，光纤连接器需要具备防水、防尘、防紫外线的功能，同时要具备良好的耐候性要求。
如中国专利CN 204666870 U公开了一种高防护等级MPO光纤连接器，包括插座和插头，所述插座和插头采用螺纹连接，所述的插座包括插座部插芯、插座塑料支架、矩形密封件、插座外壳、第一密封件；所述的插头包括插头套筒、插头塑料支架、插头部插芯、第二密封件、C形环、第三密封件、插头外壳、线缆固定件、格兰头及放线缆折弯件。虽然高防护等级MPO光纤连接器，具有一定的防水、防尘的功能，但只能与之相匹配的光纤组件连接，无法与国际标准的普通连接器对接，且连接器装配比较繁琐。同样的，中国专利CN 102401951 A公开了一种多芯光纤连接器，连接器及分支部分均保护在外壳内，且可实现多心连接需求，但对接同样 需要使用特殊组件，无法与国际标准的普通连接器，限制了产品的使用范围。
又如，中国专利CN 201707478 U中公开了一种通信系统室外用光纤连接器，使用外壳与适配器法兰连接，以保护内部的光纤适配器，且适配器法兰必须安装在防水的保护盒上，最重要的是，中国专利CN 201707478 U公开的光纤连接器，只能支持2芯的标准LC的连接保护，无法满足多芯连接需求。
实用新型内容
本实用新型的目的在于克服现有技术的缺陷，提供一种多芯光纤连接器，其具有防水、防尘、防紫外线辐射的性能，以及良好的耐候性，同时还能够与多个国际标准的接口进行连接。
为实现上述目的，本实用新型提出如下技术方案：一种光纤连接器，包括多芯光纤适配器组件，以及与多芯光纤适配器组件相对接的防护组件；
所述多芯光纤适配器组件包括尾护套、与尾护套相插接的基座、与基座相连接的多芯预端光纤适配器，以及套设在所述多芯预端光纤适配器上、与基座相连接的第一防护外壳，所述第一防护外壳上设有第一锁紧机构；
所述防护组件包括内支撑夹紧件、连接件、第二防护外壳，所述内支撑夹紧件设于第二防护外壳内部，连接件设于第二保护外壳内部且套设在所述内支撑夹紧件上，所述连接件上设有于第一锁紧机构相配合锁紧的第二锁紧机构。
优选地，所述多芯预端光纤适配器包括复数预端光纤连接器、与预端光纤连接器相插接的适配器，以及适配器相插接的适配器卡座，所述适配器卡座设有适配复数适配器的适配器开孔。
优选地，所述第一锁紧机构为设置在第一防护外壳上的自锁凸台，所述第二锁紧机构为设置在连接件内壁的自锁限位槽，所述自锁凸台被限位 在所述自锁限位槽内。
优选地，所述第一防护外壳上还设有第二防转限位凹槽，所述内支撑夹紧件上设有与所述第二防转限位凹槽相配合的第二防转限位凸台。
优选地，所述基座上设有第一外螺纹，所述第一防护外壳内设有与所述第一外螺纹相匹配的第一内螺纹。
优选地，所述基座上设有第一环形凹槽，所述第一环形凹槽内设有用于防水的第一环形密封圈。
优选地，所述多芯光纤适配器组件还包括套设在所述第一防护外壳上的防尘盖。
优选地，所述内支撑夹紧件上还设有第二外螺纹，所述第二保护外壳内设有与所述第二外螺纹相匹配的第二内螺纹。
优选地，所述内支撑夹紧件设有第二环形凹槽，所述第二环形凹槽内设有用于防水的第二环形密封圈。
优选地，所述内支撑夹紧件上套设有防止连接件滑落的波形垫圈。
优选地，所述内支撑夹紧件与第一防护外壳对接处设有防水的密封平垫。
优选地，所述防护组件还包括设置在内支撑夹紧件内的多孔密封件，所述多孔密封件设有复数与光纤相匹配的光纤穿孔，所述光纤上设有侧面开槽。
优选地，所述内支撑夹紧件上设有数个用于挤压多孔密封件的卡爪。
本实用新型的有益效果是：
本实用新型所述的光纤连接器，具有防水、防尘、防紫外线辐射的性能，以及良好的耐候性，同时，能够满足多芯连接需求，且能够与国际标准的连接器进行连接，安装、拆卸方便、快捷。
附图说明
图1是本实用新型的主视图示意图；
图2是本实用新型的多芯光纤适配器组件的爆裂图示意图；
图3是本实用新型的防护组件爆裂图示意图；
图4是本实用新型的适配器立体图示意图；
图5是本实用新型的适配器卡座立体图示意图；
图6是本实用新型的基座立体图示意图；
图7是本实用新型的第一防护外壳立体图示意图；
图8是本实用新型的防尘盖立体图示意图；
图9是本实用新型的防尘盖与多芯光纤适配器组件组合示意图；
图10是本实用新型的内支撑夹紧件立体图示意图；
图11是本实用新型的多孔密封件及橡胶塞立体图示意图；
图12是本实用新型的连接件立体图示意图；
图13是本实用新型的第二防护外壳立体图示意图；
图14是本实用新型图的多芯光纤适配器组件与防护组件组合的剖视图。
附图标记：1、多芯光纤适配器组件，11、尾护套，12、基座，121、第一本体，122、第二本体，123、第一防转限位凹槽，124、第一外螺纹，125、第一环形凹槽，126、第一环形密封圈，127、压接环，13、多芯预端光纤适配器，131、预端光纤连接器，132、适配器，1321、第一插口，1322、第二插口，1323、止挡部，1324、弹性卡片，133、适配器卡座，1331、适配器本体，1332、延伸侧壁，1333、第一防转限位凸台，1334、适配器开孔，1335、卡槽，14、第一防护外壳，141、第一内螺纹，142、固定面，143、自锁凸台，144、第二防转限位凹槽，15、防尘盖，150、锁紧槽，151、第一开槽入口，152、第一倾斜槽，153、第一固定槽，154、密封平垫，2、防护组件，20、终端光纤连接器，21、内支撑夹紧件，211、第二防转限位凸台，212、第二外螺纹，213、第二环形凹槽，214、第二环形密封圈，215、 卡爪，216、多孔密封件，2161、光纤穿孔，2162、开槽，217、橡胶塞，22、连接件，221、自锁限位槽，2211、第二开槽入口，2212、第二倾斜槽，2213、第二固定槽，23、第二防护外壳，231、第二内螺纹，232、倾斜部，24、波形垫圈。
具体实施方式
下面将结合本实用新型的附图，对本实用新型实施例的技术方案进行清楚、完整的描述。
结合图1、图2和图3所示，本实用新型所揭示的一种多芯光纤连接器，包括多芯光纤适配器组件1，以及与多芯光纤适配器组件1相对接的防护组件2。所述多芯光纤适配器组件1包括尾护套11、与尾护套11相插接的基座12、与基座12相连接的多芯预端光纤适配器13，以及套设在所述多芯预端光纤适配器13上、与基座12相连接的第一防护外壳14，所述第一防护外壳14上设有第一锁紧机构。
如图3所示，所述防护组件22包括内支撑夹紧件21、连接件22和第二防护外壳23，所述内支撑夹紧件21位于第二防护外壳23的内部，连接件22位于第二保护外壳23内部且套设在所述内支撑夹紧件21上，所述连接件22上设有第二锁紧机构，所述多芯光纤适配器组件1与防护组件2通过第一锁紧机构和第二锁紧机构锁紧连接。
结合图2所示，多芯预端光纤适配器13包括复数预端光纤连接器131、与预端光纤连接器131相插接的适配器132，以及适配器132相插接的适配器卡座133。本实施例中，所述预端光纤连接器131选用国际标准的LC光纤连接器，其他实施例中，也可选择符合其他标准的连接器，如MPO型。
结合图4所示，所述适配器132为中空的正方形壳体，所述适配器132具有两个连接器插口，其中一端插口(本实施例中定义为第一插口1321)用于插入预端光纤连接器131，另一端插口(本实施例中定义为第二插口1322)用于插入终端光纤连接器20，从而实现光路的连通。所述终端光纤 连接器20设于防护组件2内。所述适配器132具有顶侧壁、底侧壁、左侧壁、右侧壁，其中左侧壁与右侧壁相对并与顶侧壁与底侧壁相连，所述左侧壁和右侧壁上设有对称的止挡部1323和弹性卡片1324。
如图5所示，所述适配器卡座133包括适配器本体1331，以及自适配器本体1331上延伸出的两个对称的延伸侧壁1332，所述延伸侧壁1332的自由端设有第一防转限位凸台1333，适配器卡座133本体上延伸出的延伸侧壁1332只存在于适配器卡座133的两侧，能够暴露出适配器卡座内部的适配器132和预端光纤连接器131，方便适配器与适配器卡座的组装与拆卸。所述适配器本体1331上设有与适配器132的第二插口1322相配合的适配器开孔1334，以及与适配器上弹性卡片1324相配合的卡槽1335。本实施例中，所述适配器开孔1334可分别固定2芯适配器和4芯适配器，从而实现多芯适配连接，还可以根据实际需要，设置更多的适配器开孔1334。当预端光纤连接器131插入适配器132的第一插口1321后，将适配器的第二插口1322对准适配器卡座133上的适配器开孔1334，轻轻推入，适配器132上的弹性卡片1324与适配器上的卡槽1335相配合，实现适配器132与适配器卡座133的紧固，同时，适配器132上的止挡部1323抵挡在适配器卡座133的端面上，防止适配器132滑动。
结合图2和图6所示，与多芯预端光纤适配器13相连接的基座12，包括相连接的第一本体121与第二本体122，所述第一本体121为中空圆柱体结构，所述第一本体121的内壁上设有与适配器卡座133的第一防转限位凸台1333相配合的第一防转限位凹槽123，组装时，第一防转限位凸台1333与第一防转限位凹槽123相配合，能够防止多芯预端光纤适配器13转动。所述第一本体121的外壁上设有第一外螺纹124和第一环形凹槽125，所述第一环形凹槽125用于放置防水的第一环形密封圈126。第二本体122与尾护套11的一端相插接，并形成有间隙，所述间隙内设有压接环127，用于将光纤上的芳纶纱固定在第二本体122上。
如图7所示，第一防护外壳14为中空柱体结构，与基座12连接的端部的内壁上设有第一内螺纹141，该第一内螺纹141与第一本体121上的第一外螺纹124相配合，实现第一防护外壳14与基座12的旋紧固定，以保护第一防护外壳内的多芯预端光纤适配器13。第一防护外壳14的外壁上设有固定面142，通过固定面142可将组合后的多芯适配器组件固定在安装板上。第一防护外壳14与防护组件2相连接的端部上设有第一锁紧机构，本实施例中该第一锁紧机构为数个自锁凸台143、锁紧方向指示，以及设置在数个自锁凸台143之间的第二防转限位凹槽144。
结合图2和图8所示，所述多芯光纤适配器组件1还包括套设在所述第一防护外壳14上的防尘盖15。如图所示，防尘盖15内设有复数与第一防护外壳14上的自锁凸台143相配合的锁紧槽150，所述锁紧槽包括相连接的第一开槽入口151、第一倾斜槽152、以及第一固定槽153。防尘盖15的外壁上设有方向指示箭头，方向指示箭头与内部开槽入口处在相同的位置。将防尘盖15按照方向指示箭头，向多芯光纤适配器组件1的第一防护外壳14推进，并按照锁紧方向指示旋转防尘盖15，自锁凸台143在防尘盖15的锁紧槽150内沿第一倾斜槽152行进，防尘盖15逐步锁紧，自锁凸台143行进到锁紧槽150末端时，可与第一固定槽153相卡合，即可将防尘盖15固定在第一防护外壳上，防止灰尘的进入。反方向旋转防尘盖15，即可将防尘盖15解锁。更进一步的，防尘盖15可设置防水的密封平垫154。图9所示为防尘盖15与多芯光纤适配器组件1组合示意图。
结合图10和图11所示，内支撑夹紧件21为中空柱体结构，与多芯光纤适配器组件1相连的端部设有数个第二防转限位凸台211，所述第二防转限位凸台211与第一防护外壳14上的第二防转限位凹槽144相配。更优地，当内支撑夹紧件21与第一防护外壳14对接时，对接处设有防水的密封平垫154，该密封平垫154用于进行防水，并对内部的光纤进行保护。内支撑夹紧件21另一端的外壁上设有第二外螺纹212。
更进一步的，为了取得更佳的防水效果，内支撑夹紧件21上还设有第二环形凹槽213，所述第二环形凹槽213内设有用于防水的第二环形密封圈214。内支撑夹紧件21尾部设有复数卡爪215，卡爪215内设有多孔密封件216，多孔密封件216上设有多个与光纤匹配的光纤穿孔2161。本实施例中，优选为3个光纤穿孔2161。每个光纤穿孔2161设有开槽2162，该开槽2162可将任意厂家的普通光纤跳线，从开槽2162处将光纤卡入光纤穿孔2161内。本实施例中，在所连接的光纤跳线不足3根时(只有四芯或者两芯)，可用橡胶塞217将多孔密封件216上不使用的光纤穿孔2161塞住，实现不满配状态下的防水功能。
如图12所示，套设在内支撑夹紧件21上的连接件22内侧设有第二锁紧机构，本实施例中，所述第二锁紧机构为自锁限位槽221，所述自锁限位槽221与第一防护外壳14上的自锁凸台143相配合，实现多芯光纤适配器组件1与防护组件2的锁紧。所述自锁限位槽221包括相连接的第二开槽入口2211、第二倾斜槽2212、以及第二固定槽2213。连接件22的外壁上设有方向指示箭头，方向指示箭头与内部的第二开槽入口2211处在相同的位置。将连接件22按照方向指示箭头，向多芯光纤适配器组件1的第一防护外壳14推进，并按照锁紧方向指示旋转连接件22，自锁凸台143在连接件22的自锁限位槽内沿第二倾斜槽2212行进，连接件22逐步锁紧，自锁凸台143行进到自锁限位槽221末端时，可与第二固定槽2213相卡合，即可将连接件22旋紧固定在外壳上。反方向旋转连接件22，即可将连接件22解锁。连接件22与内支撑夹紧件21之间设有波形垫圈24，由于受压形变，可提供反弹力，防止连接件22从第一防护外壳14上自然松脱。
如图13所示，套设在所述内支撑夹紧件21上的第二保护外壳23，内壁上设有与所述内支撑夹紧件21的第二外螺纹212相配合的第二内螺纹231，所述第二防护外壳23的第二内螺纹与内支撑夹紧件21上的第二外螺纹相配合，旋紧在内支撑夹紧件21上，防止套设在内支撑夹紧件21上、 位于第二防护外壳23内部的连接件22滑落。同时，第二防护外壳23设有倾斜部232，旋紧时倾斜部232挤压内支撑夹紧件21上的卡爪215，使其内部的多孔密封件216变形，锁紧光纤。同时第二防护外壳内壁与第二环形密封圈214密切贴合，可以防止水从第二防护外壳23与内支撑夹紧件21之间进入。
图14所示为多芯光纤适配器组件1与防护组件2组合的剖视图。将芯光纤适配器组件1组装后，与防护组件2中的终端光纤连接器20、内支撑夹紧件21对接，通过连接件锁紧，同时将第二防护外壳23与内支撑夹紧件21旋紧，将连接件22、内支撑夹紧件21全部保护在内。在将第二保护外壳23旋转脱出之前，即多孔密封件216的受压力解除之前，无法对连接件22进行操作，可以防止使用时，在光纤未解除锁定时，误解锁连接件22，使多芯预端光纤适配器13受力而造成多芯预端光纤适配器13的损坏。
本实用新型所述的光纤连接器，具备良好的耐候性，能够防水、防尘、防紫外线辐射，能够满足多芯连接的需求，即插即用，同时能够与国际标准接口进行对接。
本实用新型的技术内容及技术特征已揭示如上，然而熟悉本领域的技术人员仍可能基于本实用新型的教示及揭示而作种种不背离本实用新型精神的替换及修饰，因此，本实用新型保护范围应不限于实施例所揭示的内容，而应包括各种不背离本实用新型的替换及修饰，并为本专利申请权利要求所涵盖。

Claims (13)

  1. 一种光纤连接器，其特征在于，包括多芯光纤适配器组件，以及与多芯光纤适配器组件相对接的防护组件；
    所述多芯光纤适配器组件包括尾护套、与尾护套相插接的基座、与基座相连接的多芯预端光纤适配器，以及套设在所述多芯预端光纤适配器上、与基座相连接的第一防护外壳，所述第一防护外壳上设有第一锁紧机构；
    所述防护组件包括内支撑夹紧件、连接件、第二防护外壳，所述内支撑夹紧件设于第二防护外壳内部，连接件设于第二防护外壳内部且套设在所述内支撑夹紧件上，所述连接件上设与第一锁紧机构相配合锁紧的第二锁紧机构。
  2. 根据权利要求1所述的光纤连接器，其特征在于，所述多芯预端光纤适配器包括复数预端光纤连接器、与预端光纤连接器相插接的适配器，以及适配器相插接的适配器卡座，所述适配器卡座设有适配复数适配器的适配器开孔。
  3. 根据权利要求1所述的光纤连接器，其特征在于，所述第一锁紧机构为设置在第一防护外壳上的自锁凸台，所述第二锁紧机构为设置在连接件内壁的自锁限位槽，所述自锁凸台被限位在所述自锁限位槽内。
  4. 根据权利要求1所述的光纤连接器，其特征在于，所述第一防护外壳上还设有第二防转限位凹槽，所述内支撑夹紧件上设有与所述第二防转限位凹槽相配合的第二防转限位凸台。
  5. 根据权利要求1所述的光纤连接器，其特征在于，所述基座上设有第一外螺纹，所述第一防护外壳内壁设有与所述第一外螺纹相匹配的第一内螺纹。
  6. 根据权利要求5所述的光纤连接器，其特征在于，所述基座上设有第一环形凹槽，所述第一环形凹槽内设有用于防水的第一环形密封圈。
  7. 根据权利要求1所述的光纤连接器，其特征在于，所述多芯光纤适配器组件还包括套设在所述第一防护外壳上的防尘盖。
  8. 根据权利要求1所述的光纤连接器，其特征在于，所述内支撑夹紧件上还设有第二外螺纹，所述第二保护外壳内设有与所述第二外螺纹相匹配的第二内螺纹。
  9. 根据权利要求8所述的光纤连接器，其特征在于，所述内支撑夹紧件设有第二环形凹槽，所述第二环形凹槽内设有用于防水的第二环形密封圈。
  10. 根据权利要求8所述的光纤连接器，其特征在于，所述内支撑夹紧件上套设有防止连接件滑落的波形垫圈。
  11. 根据权利要求8所述的光纤连接器，其特征在于，所述内支撑夹紧件与第一防护外壳对接处设有防水的密封平垫。
  12. 根据权利要求1所述的光纤连接器，其特征在于，所述防护组件还包括设置在内支撑夹紧件内的多孔密封件，所述多孔密封件设有复数与光纤相匹配的光纤穿孔，所述光纤上设有侧面开槽。
  13. 根据权利要求12所述的光纤连接器，其特征在于，所述内支撑夹紧件上设有数个用于挤压多孔密封件的卡爪。
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