WO2019184239A1 - 一种连接器、适配器和快速插拔的光纤连接组件 - Google Patents

一种连接器、适配器和快速插拔的光纤连接组件 Download PDF

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Publication number
WO2019184239A1
WO2019184239A1 PCT/CN2018/103129 CN2018103129W WO2019184239A1 WO 2019184239 A1 WO2019184239 A1 WO 2019184239A1 CN 2018103129 W CN2018103129 W CN 2018103129W WO 2019184239 A1 WO2019184239 A1 WO 2019184239A1
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WO
WIPO (PCT)
Prior art keywords
adapter
connector
outer sleeve
plug
state
Prior art date
Application number
PCT/CN2018/103129
Other languages
English (en)
French (fr)
Inventor
黄美金
邹峰
魏文振
朱丽丽
Original Assignee
烽火通信科技股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from CN201810277056.XA external-priority patent/CN108254835A/zh
Application filed by 烽火通信科技股份有限公司 filed Critical 烽火通信科技股份有限公司
Priority to MX2020004286A priority Critical patent/MX2020004286A/es
Priority to BR112020007619-8A priority patent/BR112020007619A2/pt
Publication of WO2019184239A1 publication Critical patent/WO2019184239A1/zh
Priority to PH12020550110A priority patent/PH12020550110A1/en

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Classifications

    • 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
    • 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 present invention relates to the field of optical distribution networks, and more particularly to a connector, an adapter, and a quick-swap fiber optic connection assembly.
  • fiber optic connection assemblies include fiber optic connectors and adapters.
  • Most of the fiber connectors and adapters used at this stage use industry-standard connectors and adapters. This type of connector and adapter is designed to solve the problem of fiber connection in a room or in a protective box (box), so there are the following defects in practical use:
  • an object of the present invention is to provide a fiber plug assembly that is quickly inserted and removed, and solves the problem of low pull-out force.
  • the technical solution adopted by the present invention is: a connector for optical fiber connection, the connector includes a plug body, and an outer portion of the plug body is provided with a plug casing, and a front end of the plug casing has a push The top device; the outer surface of the plug body is provided with a recess for the adapter to be mated with the connector.
  • the snapping through the groove can withstand a greater pull-out force.
  • the ejector device is used to push the inner sleeve of the adapter fitted with the connector. In order to make a state change of the adapter to connect with the connector.
  • the ejector device is an ejector block formed by extending the outer surface of the plug body, or
  • the ejector device is an ejector piece spaced apart from the surface of the plug body.
  • the ejector device can estimate that the inner sleeve moves in the axial direction of the adapter.
  • the plug body includes:
  • the main body portion is provided with a cavity
  • An insertion portion at one end of the main body portion wherein the insertion portion is provided with a ferrule fixing portion at one end of the main body portion, and the ferrule fixing portion is fixed with a fiber-optic ceramic ferrule, and the groove is located at the insertion portion The outer surface.
  • the functional structure to be connected is placed on the insertion portion instead of the thread on the periphery of the plug casing as in the prior art, reducing the diameter of the adapter.
  • the groove is located at an outer surface of the region where the insertion portion is provided with the ferrule fixing portion.
  • the ferrule fixing portion has a larger wall thickness and the fiber-optic ceramic ferrule is inserted into the ferrule fixing portion, the strength thereof is greater, and the groove is disposed therein to withstand a larger radial force, further improving the bearing. The ability to pull off.
  • the plug casing is formed by the main body portion extending toward the insertion portion
  • the ejector device is an ejector piece formed by extending a distal end of the plug casing, and the ejector piece and the ejector piece are The insertion portion interval is set. Since the ejector sheet is spaced from the insertion portion, the urging sheet can be held against the inner sleeve and protrude between the outer sleeve and the abutment portion of the adapter to hold the adapter on the connector.
  • the groove is a ring of annular grooves disposed along the circumference of the plug body, or
  • the groove is a hemispherical groove.
  • annular grooves or hemispherical grooves has its advantages.
  • the annular grooves do not require very strict deflection angle alignment, while the hemispherical grooves require more precise deflection angle alignment, which would otherwise result in adapter clamping.
  • the body is difficult to accurately click in the center of the hemispherical groove, but since the hemispherical groove can be more closely matched with the shape of the retaining body, it can provide a better holding effect, thereby improving the pull-out force. ability.
  • the present invention also provides a connector for fiber optic connection, comprising:
  • the main body portion is provided with a cavity
  • An optical cable disposed in the main body portion, and the optical cable extends into the cavity;
  • the insertion portion is peripherally provided with an ejector device for urging an inner sleeve of the adapter adapted to the connector.
  • the engagement by the groove can withstand a greater pull-out force, and an ejector is provided around the insertion portion to trigger the adapter connection and lock.
  • the ejector device is an ejector block disposed on an outer surface of the insertion portion, or
  • the ejector device is an ejector piece spaced apart from an outer surface of the insertion portion.
  • the groove is located at an outer surface of the insertion portion where the fiber-optic ceramic ferrule is mounted.
  • the present invention also provides an adapter for fiber optic connection comprising:
  • At least one end of the adapter body is a cylindrical abutting portion, the abutting portion is provided with a docking passage, and the adapter body is provided with a ferrule receiving seat for accommodating the fiber-optic ceramic ferrule, and the mating portion is provided with a receiving groove that communicates with the docking channel;
  • a retaining body wherein the retaining body is movably received in the receiving slot
  • the outer sleeve has a first state and a second state, the outer sleeve abutting the outer sleeve when the outer sleeve is in the first state a retaining body, and a part of the retaining body is retractably extended into the docking passage, and when the outer sleeve is in the second state, the outer sleeve and the opening of the receiving slot are provided for holding The body exits the yield space of the docking channel;
  • the inner sleeve for retaining the outer sleeve in a first state after being pushed up in the insertion direction.
  • part of the retaining body does not retractably extend into the docking passage, and the portion that protrudes into the docking passage is used to cooperate with the groove of the connector to connect and lock the connector and The adapter, and because the retaining body is held against it, cannot be withdrawn, so its docking channel makes the connector and adapter connection very strong and can withstand very high tensile forces.
  • the holding body is a steel ball
  • the receiving groove is a cylindrical hole.
  • the bottom of the receiving slot is provided with a stop portion for preventing the steel ball from completely falling out of the receiving groove.
  • the steel ball is selected as the retaining body because the steel ball itself has high strength and is not easily caught by moving up and down in the receiving groove.
  • the outer sleeve is provided with a resisting block protruding from the inner wall, and when the outer sleeve is in the first state, the resisting block is located at the receiving groove, and is Holding the card holder.
  • the resisting block has a slope near the side of the ferrule receiving seat.
  • the slope can guide the card body downward, so that the switching between the first state and the second state is smoother.
  • the abutting portion includes a first segment adjacent to the ferrule receiving seat and a second segment further extended by the first segment, and the first segment radius is greater than the second segment, An end of the outer sleeve adjacent to the ferrule receiving seat is sleeved on the first segment, and the resisting block moves axially on the second segment when switching between the first state and the second state.
  • the difference in diameter between the first segment and the second segment is to create a space for the resisting block to move, reducing the diameter of the outer sleeve, thereby reducing the diameter of the entire adapter.
  • the rear end surface of the inner sleeve is respectively abutted against the outer sleeve by an outer spring, and when the outer sleeve is in the first state, the inner sleeve holds the outer sleeve through the outer spring. In the first state.
  • the outer spring is used to push the outer sleeve forward after the inner sleeve is subjected to the thrust of the ejector, until the retaining body is caught on the groove, and the outer spring holds the outer sleeve in place, so that the outer spring keeps the outer sleeve in place.
  • the resist block resists the card holder.
  • an axially disposed inner spring is disposed between the inner sleeve and the abutting portion.
  • the inner spring is set so that the connector and adapter can automatically eject when the outer sleeve is manually pulled back.
  • the elastic force of the outer spring is greater than the elastic force of the inner spring.
  • the elastic force of the outer spring is greater than the elastic force of the inner spring so that the inner spring can push the connector open, without excessive elastic force, and avoiding excessive mutual thrust between the connector and the adapter in the connected state, and reducing the connection. stability.
  • the inner sleeve is combined between the outer sleeve and the abutting portion, and the inner sleeve, the outer sleeve and the abutting portion can slide relative to each other.
  • the outer sleeve and the abutting portion are provided with a retaining ring toward the surface end of the inner sleeve.
  • the retaining ring prevents the inner sleeve from being pushed out of the outer sleeve by the inner and outer springs.
  • the holding body includes a resilient arm extending from the abutting portion, and the end of the elastic arm is provided with a holding block;
  • the elastic arm When the outer sleeve is in the first state, the elastic arm is in an untransferred elastic deformation state, and the holding block is completely received in the receiving groove, when the outer sleeve is in the first state, The outer sleeve is abutted on the clamping block, and the clamping block portion extends into the docking channel.
  • the embodiment in which the elastic arm has a holding block at the end can automatically withdraw the docking channel when the outer sleeve is retracted to the second state.
  • the invention also provides a quick-swapping optical fiber connection assembly, comprising an adapter and a connector, the adapter comprising:
  • the adapter body has at least one end of a cylindrical abutting portion, the abutting portion is provided with a docking passage, and the adapter body is provided with a ferrule receiving seat for accommodating the fiber-optic ceramic ferrule, the ferrule receiving seat is located at the a middle portion of the adapter body, and the receiving portion is provided with a receiving groove communicating with the docking channel;
  • a retaining body wherein the retaining body is movably received in the receiving slot
  • the retaining body is configured to extend the retaining body into the docking passage, and when the outer sleeve is in the second state, the card is disposed between the outer sleeve and the opening of the receiving slot Hold the exit space of the docking channel;
  • the connector includes:
  • a body portion the body portion being provided with a cavity
  • An insertion portion at one end of the main body portion the insertion portion being provided with a fiber-optic ceramic ferrule away from an end of the main body portion, the insertion portion being provided with a groove for engaging an adapter matching the connector, and simultaneously ,
  • an ejector device is provided on the periphery of the insertion portion, the ejector device for urging an inner sleeve of the adapter adapted to the connector;
  • the ejector device When the connector is inserted into the adapter, the ejector device abuts against the inner sleeve, and the outer sleeve is maintained in the first state, and the portion of the retaining body does not retractably extend into the docking channel and Hold in the groove.
  • the locking force of the connection between the retaining body and the groove is stronger than that of the existing standard connector. It is more suitable for outdoor complicated scenes and can withstand greater pull-out force. .
  • the insertion force required for insertion is small, and the locking force is large when locking.
  • the connector can be pulled out smoothly, the pulling force is small, and the utility model has the advantages of convenient operation, and effectively solves the problem of plugging and unplugging the existing optical fiber connecting component. The problem is that the operation is inconvenient and the locking force is insufficient.
  • the invention also provides a quick-swapping optical fiber connection assembly, comprising an adapter and a connector, the adapter comprising an adapter body capable of docking with the connector at both ends, the adapter body having a locking structure at any end thereof, the locking structure
  • the utility model comprises an orientation limiting groove formed on the inner side wall of the adapter body, a steel ball embedded on the outer side wall of the adapter body, an outer sleeve sleeved on the outer body of the adapter body and pressed against the steel ball, and disposed between the adapter body and the outer sleeve
  • the inner sleeve is uniformly distributed in a plurality of directions along the circumferential direction of the adapter body, and the rear end faces of the inner sleeve are respectively resisted by the outer spring, the inner spring and the outer sleeve, and the adapter body
  • the elastic force of the outer spring is greater than the elastic force of the inner spring, the front end surface of the inner sleeve is
  • the connector includes a plug body, and an outer surface of the plug body is provided with an orientation limiting protrusion adapted to the orientation limiting groove; and an outer portion of the plug body is provided with a plug housing, the front end of the plug housing is provided for Pushing the ejector of the inner sleeve; the outer surface of the plug body is provided with a ring-shaped annular groove matching the steel ball along the circumferential direction thereof, and the adapter and the connector are pressed into the annular groove and clamped when the steel ball is pressed into the annular groove Locked.
  • At least one O-ring is embedded in the contact surface of the plug body of the connector and the adapter body.
  • the O-rings are provided in two.
  • the contact surface of the adapter body and the installation interface is provided with a sealing flat pad.
  • the O-ring and the sealing flat pad are made of rubber or silicone.
  • the other end of the adapter body also has a locking structure for docking with the connector.
  • the other end of the adapter body does not have a locking structure for docking with an existing standard connector.
  • the orientation limiting grooves are evenly distributed in three along the circumferential direction of the adapter body.
  • the locking principle of the invention is locked by the cooperation of the steel ball and the annular groove, and the locking force is stronger than the snap locking device used in the existing standard connector, and is more suitable for outdoor complex. Scene. Moreover, the insertion force required for insertion is small, and the locking force is large when locking. When the steel ball and the annular groove are unlocked when pulled out, the connector can be smoothly pulled out, the pulling force is small, and the operation is convenient, effective The invention solves the problems that the existing optical fiber connecting component is inconvenient to insert and pull, and the locking force is insufficient.
  • At least one O-ring is embedded in the contact surface of the connector body of the connector and the adapter body.
  • the design of the O-ring is such that a closed space is formed between the connector and the adapter, which ensures that the connector and the adapter can be connected to each other to achieve a good dust-proof and water-discharging effect, thereby solving the dust-proof of the existing fiber-optic connection component. Poor waterproof performance, not for outdoor use.
  • the protective plug when the adapter is not docked with the connector, the protective plug can be inserted into the adapter; when the connector is not docked with the adapter, the protective cap can be placed outside the plug of the connector.
  • the design of the protective plug and the protective cap can protect the adapter and the connector from dust and water when it is not docked, thus effectively ensuring the service life of the adapter and the connector.
  • the invention can design the fiber optic connection component as “single-ended waterproof locking type” or “double-end waterproof locking type” according to different use requirements, and has wide application range and economical application.
  • FIG. 1 is a schematic structural diagram of an adapter according to an embodiment of the present invention.
  • Figure 2 is a cross-sectional view of Figure 1 taken along line A-A';
  • FIG. 3 is a schematic structural diagram of a connector according to an embodiment of the present invention.
  • Figure 4 is a cross-sectional view taken along line BB' of Figure 3;
  • Figure 5 is a schematic view showing the state before the adapter and the connector are docked
  • Figure 6 is a schematic view of the adapter and the connector in the process of docking insertion
  • Figure 7 is a schematic view of the connector when it is ready to be pulled out of the adapter
  • Figure 8 is a schematic view of the connector when the steel ball is unlocked and the connector is continuously pulled out;
  • Figure 9 is a schematic view showing the structure of the O-ring seal and the adapter-added sealing flat pad for the connector;
  • Figure 10 is a schematic structural view of the plugging protective plug in the adapter
  • Figure 11 is a schematic view showing the structure of the outer sheath protective cap of the connector of the connector
  • FIG. 12 is a schematic structural view of an adapter of “single-ended waterproof locking type” according to an embodiment of the present invention.
  • FIG. 13 is a schematic structural diagram of an adapter of “double-end waterproof locking type” according to an embodiment of the present invention.
  • Figure 14 is a schematic view of a specific embodiment of a connector
  • Figure 15 is a schematic view of the connector of Figure 14 after docking with the adapter
  • Figure 16 is a schematic view of a specific embodiment of a protective cap
  • Figure 17 is a schematic view of the connector of Figure 16 in the connector of Figure 14;
  • Figure 18 is a schematic view of a specific embodiment of a protective plug
  • Figure 19 is a schematic view of the protective plug of Figure 18 inserted into the adapter
  • Figure 20 is a schematic illustration of a particular embodiment of a retaining body.
  • 2-connector 201-plug body, 201a-body part, 201b-cavity, 201c-insert part, 201d-ferrule fixing part, 202-fiber, 203-fiber ceramic ferrule, 204-directional limiting bulge ,205-plug jacket,206-ejector,207-ring groove,208-O seal,209-plug middle tube,210-plug tail tube,211-aluminum tube,212-inner waterproof O-ring , 213-aluminum cup, 214-cable tail sheath, 215-cable, 216-shrink tubing, 217-ceramic ferrule buffer spring;
  • 3-protective plug 4-protective cap, 40-butt joint, 42-ferrule holder, 43-elastic arm, 44-clamp block.
  • an embodiment of the present invention provides a connector 2 for optical fiber connection.
  • the connector 2 includes a plug body 201 for carrying the optical cable 215 and for hand-held operation.
  • the plug body 201 is provided with a plug housing 205, and the front end of the plug housing 205 has an ejector unit 206; the outer surface of the plug body 201 is provided with a recess for engaging an adapter matching the connector.
  • the groove may be an annular groove 207. Compared with the connection method using the thread in the prior art, the groove can be used as the connecting structure to withstand a larger pulling force, and does not need to rotate, can be directly inserted, and is convenient to operate. And because there is no need to rotate, the space required for hand operation is small, and the density of the connector on the panel can be increased.
  • the difference between the embodiment and the embodiment 1 is that the ejector device 206 is used for urging the inner sleeve 106 of the adapter 1 adapted to the connector 2. .
  • the ejector unit 206 can also push other similar structures of the adapter 1 as long as the adapter 1 can be changed in state and the connection can be achieved.
  • the difference between the embodiment and the embodiment 1 is that the ejector unit 206 is an ejector block formed by extending the outer surface of the plug body 201. If the ejector unit 206 adopts this structure, the inner sleeve 106 matched with the ejector unit 206 can be provided with a protruding portion of the protruding outer sleeve 205 not shown, so that the ejector unit 206 can push the inner sleeve 106. And moving axially relative to the outer sleeve 205.
  • the difference between the embodiment and the embodiment 1 is that the ejector unit 206 is an ejector piece spaced apart from the surface of the plug body 201.
  • the pusher blade is selected to extend directly into the outer sleeve 205 such that the ejector 206 can push the inner sleeve 106 and move axially relative to the outer sleeve 205.
  • the different ejector units 206 need to be adapted to different inner sleeves 106, and finally the ejector unit 206 can assume that the inner sleeve 106 is axially displaced relative to the outer sleeve 205.
  • the plug body 201 includes:
  • the main body portion 201a, the main body portion 201a is provided with a cavity 201b, the cavity 201b is used to connect the optical cable 215;
  • the groove is located on the outer surface of the insertion portion 201c.
  • the function of attaching the groove to the insertion portion 201c is provided instead of providing a thread at the periphery of the plug as in the prior art, which reduces the diameter of the adapter.
  • the groove is located at an outer surface of the region where the insertion portion 201c is provided with the ferrule fixing portion 201d.
  • the ferrule fixing portion 201d has a larger wall thickness, and the fiber-optic ceramic ferrule 203 is loaded into the ferrule fixing portion, its strength is greater.
  • the groove is subjected to radial pressure, and the groove is disposed therein to withstand a larger radial force, further improving the ability to withstand the pull-out force.
  • the plug casing 205 is formed by the main body portion 201a extending toward the insertion portion 201c
  • the ejector device 206 is an ejector piece extending from the end of the plug casing 205, and the ejector piece and the insertion portion 201c Interval setting. Since the ejector sheet is spaced from the insertion portion 201c, the urging sheet can be held against the inner sleeve 106 and protrude between the outer sleeve 105 of the adapter and the abutment portion 40 to hold the adapter on the connector.
  • the groove is a ring of annular grooves 207 disposed along the circumference of the plug body 201; or the groove is a hemispherical groove.
  • annular grooves 207 or hemispherical grooves has the advantage that the annular grooves 207 do not require very strict deflection angle alignment, while the hemispherical grooves require more precise deflection angle alignment, which would otherwise result in adapter 1
  • the retaining body is difficult to be accurately caught in the center of the hemispherical groove, but since the hemispherical groove can be more closely matched with the shape of the retaining body, it can provide a better gripping effect and thus improve the bearing.
  • the annular groove 207 is preferably selected.
  • the present invention also provides a connector for optical fiber connection, which includes:
  • the main body portion 201a, the main body portion 201a is provided with a cavity 201b;
  • the insertion portion 201c located at one end of the main body portion 201a is provided with a fiber-optic ceramic ferrule 203 at an end of the insertion portion 201c away from the main body portion 201a.
  • the insertion portion 201c is provided with a groove for engaging an adapter matched with the connector, and
  • the insertion portion 201c is peripherally provided with an ejector device 206 for urging the inner sleeve 106 of the adapter fitted with the connector.
  • the engagement by the groove can withstand a greater pull-out force, and an ejector 206 is provided around the insertion portion 201c to trigger the adapter 1 to be connected and locked. Since it does not need to be rotated, it can be inserted directly and is easy to operate. And since there is no need to rotate, the space required for the hand operation is small, and the density of the connector 2 on the panel can be increased.
  • the ejector unit 206 is an ejector block provided on the outer surface of the insertion portion 201c. If the ejector unit 206 adopts this structure, the inner sleeve 106 matched with the ejector unit 206 can be provided with a protruding portion of the protruding outer sleeve 205 not shown, so that the ejector unit 206 can push the inner sleeve 106. And moving axially relative to the outer sleeve 205.
  • the ejector device 206 is an ejector piece spaced apart from the outer surface of the insertion portion 201c. Since the ejector sheet is spaced from the insertion portion 201c, the urging sheet can be held against the inner sleeve 106 and protrude between the outer sleeve 105 of the adapter and the abutment portion 40 to hold the adapter on the connector.
  • the groove is located at an outer surface of the region where the insertion portion 201c is mounted with the fiber-optic ceramic ferrule 203. Since the ferrule fixing portion 201d has a larger wall thickness, and the fiber-optic ceramic ferrule 203 is loaded into the ferrule fixing portion, its strength is greater.
  • the groove is subjected to radial pressure, and the groove is provided therein to withstand a larger radial force, further improving the ability to withstand the pull-out force.
  • an adapter 1 for fiber optic connection comprising:
  • At least one end of the adapter body 101 is a cylindrical abutting portion 40, the abutting portion 40 is provided with a docking channel 101a, and the adapter body 101 is provided with a ferrule receiving seat 42 for accommodating the fiber-optic ceramic ferrule 203.
  • the ferrule receiving seat 42 is located in the middle of the adapter body 101, and the abutting portion 40 is provided with a receiving groove 101b communicating with the docking channel 101a;
  • the holding body is movably received in the receiving groove 101b;
  • the outer sleeve 105 has a first state and a second state, when the outer sleeve 105 is in the first state, the outer sleeve The retaining body 105 abuts the retaining body, and the partial retaining body is retractably extended into the docking passage 101a.
  • the outer sleeve 105 is in the second state, the outer sleeve 105 and the receiving slot 101b Between the openings, there is a yield space 101c for the card holder to exit the docking channel 101a;
  • the inner sleeve 106 is movably disposed in the abutment portion 40 for holding the outer sleeve 105 in the first state after being pushed up in the insertion direction.
  • the partial retaining body does not retractably extend into the docking passage 101a, and the portion that protrudes into the docking passage 101a is used to cooperate with the recess of the connector 2 to connect and lock.
  • the connector 2 and the adapter 1 are tightened, and since the retaining body is abutted and cannot be withdrawn, it abuts the passage 101a, so that the connection of the connector 2 and the adapter 1 is very strong and can withstand a very high pulling force.
  • the holding body is a steel ball 104
  • the receiving groove 101b is a cylindrical hole.
  • the bottom of the receiving groove 101b is provided with a stopper portion for preventing the steel ball 104 from completely falling out of the receiving groove 101b.
  • the stopping portion is a funnel structure for receiving the bottom of the groove 101b. It is foreseeable that there are various other stopping methods, such as providing a bump on the inner wall of the bottom of the receiving groove 101b.
  • the steel ball 104 is selected as the retaining body because the steel ball itself has high strength and is not easily caught by the vertical movement in the receiving groove 101b.
  • the bottom of the receiving groove 101b also has an arcuate inwardly extending stop structure for preventing the retaining body from falling out of the receiving groove 101b.
  • the outer sleeve 105 is provided with a resisting block 105a protruding from the inner wall.
  • the resisting block 105a is located at the receiving groove 101b and abuts against the retaining body.
  • the resisting block 105a has a slope 111 near the ferrule receiving seat 42 side.
  • the slope 111 can guide the holding body downward, so that the switching between the first state and the second state is smoother.
  • the abutting portion 40 includes a first segment adjacent to the ferrule receiving seat 42 and a second segment further extended from the first segment, and the first segment radius is greater than the second segment, and the outer sleeve 105 is adjacent to the ferrule receiving seat 42
  • One end is sleeved on the first section, and when the transition between the first state and the second state, the resisting block 105a moves axially on the second section.
  • the difference in diameter between the first segment and the second segment is to form a space for the resisting block 105a to move, reducing the diameter of the outer sleeve 105, thereby reducing the diameter of the entire adapter 1.
  • the rear end surface of the inner sleeve 106 is respectively abutted against the outer sleeve 105 by the outer spring 107.
  • the outer spring 107 can also be replaced by other elastic elements, such as elastomers, repulsive magnets and the like. In the present embodiment, a spring is preferably used.
  • the outer spring 107 is used to push the outer sleeve 105 forward after the inner sleeve 106 is subjected to the thrust of the ejector 206 until the retaining body is caught on the groove, and the outer spring 107 then the outer sleeve 105 Keeping in place, that is, the outer spring 107 maintains the outer sleeve 105 in the first state, so that the abutting block 105a abuts the retaining body, and the retaining body 2 is prevented from being pulled back after the tension of the connector 2, resulting in the connector 2 and The adapter 1 is separated in a state to be connected.
  • an axially disposed inner spring 108 is disposed between the inner sleeve 106 and the abutment portion 40.
  • the inner spring 108 is provided to allow the inner sleeve 106 and the outer sleeve 105 to be rebounded back integrally after the connector and adapter are disconnected.
  • the elastic force of the outer spring 107 is greater than the elastic force of the inner spring 108.
  • the elastic force of the outer spring 107 is made larger than the elastic force of the inner spring 108.
  • the inner sleeve 106 is combined between the outer sleeve 105 and the abutting portion 40, and the inner sleeve 106, the outer sleeve 105 and the abutting portion 40 can slide relative to each other.
  • the adapter 1 is enabled to switch between the first state and the second state.
  • outer sleeve 105 and the abutting portion 40 are provided with a retaining ring toward the surface end of the inner sleeve 106.
  • the retaining ring prevents the inner sleeve 106 from being pushed out of the outer sleeve 105 by the inner spring 108 and the outer spring 107.
  • the holding body includes a resilient arm 43 extending from the abutting portion 40.
  • the elastic arm 43 is provided with a holding block 44 at the end; when the outer sleeve 105 is in the first state, the elastic arm 43 is in an untransferred elastic deformation state, and the holding block 44 It is completely accommodated in the receiving groove 101b.
  • the outer sleeve 105 When the outer sleeve 105 is in the first state, the outer sleeve 105 abuts on the holding block 44, and the holding block 44 partially protrudes into the docking passage 101a.
  • the embodiment in which the retaining block 44 is provided at the end of the elastic arm 43 can automatically withdraw from the docking passage 101a when the outer sleeve 105 is retracted to the second state.
  • a greater force is required for the transition between the first state and the second state.
  • the present invention also provides a quick-swap fiber optic connection assembly comprising an adapter 1 and a connector 2, the adapter 1 comprising an adapter body 101, a retaining body, an outer sleeve 105 and an inner sleeve 106.
  • At least one end of the adapter body 101 is a cylindrical abutting portion 40.
  • the abutting portion 40 is provided with a docking passage 101a.
  • the adapter body 101 is provided with a ferrule receiving seat 42 for accommodating the fiber-optic ceramic ferrule 203.
  • the ferrule receiving seat 42 The receiving body 101 is located in the middle of the adapter body 101, and the receiving portion 40 is provided with a receiving slot 101b communicating with the docking channel 101a;
  • the card body is accommodated in the receiving slot 101b;
  • the outer sleeve 105 is movably sleeved outside the abutting portion 40.
  • the outer sleeve 105 has a first state and a second state.
  • the outer sleeve 105 When the outer sleeve 105 is in the first state, the outer sleeve 105 abuts the retaining body and enables A portion of the retaining body extends non-retractably into the docking passage 101a.
  • the outer sleeve 105 is in the second state, a gap between the outer sleeve 105 and the opening of the receiving slot 101b is provided for the retaining body to exit the docking passage 101a.
  • the inner sleeve 106 is used to hold the outer sleeve 105 in the first state after being pushed up in the insertion direction;
  • the connector 2 includes:
  • the main body portion 201a, the main body portion 201a is provided with a cavity 201b;
  • a cable 215 disposed in the main body portion 201a, and the cable 215 extends into the cavity 201b;
  • an insertion device 206 is provided on the periphery of the insertion portion 201c, and the ejector device 206 is for pushing the inner sleeve 106 of the adapter fitted with the connector;
  • the ejector device 206 When the connector 2 is inserted into the adapter 1, the ejector device 206 is abutted against the inner sleeve 106, and the outer sleeve 105 is maintained in the first state, and the partial retaining body is non-retractable. It extends into the docking channel 101a and is held in the groove.
  • the locking force of the connection between the retaining body and the groove is stronger than that of the existing standard connector. It is more suitable for outdoor complicated scenes and can withstand greater pull-out force. .
  • the insertion force required for insertion is small, and the locking force is large when locking.
  • the connector can be pulled out smoothly, the pulling force is small, and the utility model has the advantages of convenient operation, and effectively solves the problem of plugging and unplugging the existing optical fiber connecting component. The problem is that the operation is inconvenient and the locking force is insufficient.
  • Embodiment 12 Referring to FIG. 1 to FIG. 8 , an embodiment of the present invention provides a quick-swapping optical fiber connection assembly, including an adapter 1 and a connector 2 .
  • the adapter 1 includes an adapter body 101 that can be coupled to the connector 2 at both ends.
  • the adapter body 101 includes a ceramic sleeve required for docking with the fiber-optic ceramic ferrule 203 of the connector 2 .
  • the adapter body 101 has a locking structure, and the locking structure includes an orientation limiting groove 103 formed on the inner side wall of the adapter body 101. As shown in FIG.
  • the steel ball 104 embedded in the outer side wall of the adapter body 101 is preferably a stainless steel ball, an outer sleeve 105 sleeved outside the adapter body 101 and pressed against the steel ball 104, and an inner sleeve 106 disposed between the adapter body 101 and the outer sleeve 105; the orientation limiting groove 103 along the adapter
  • the circumferential direction of the body 101 is evenly distributed in a plurality of embodiments.
  • the uniform number is three. The specific number can be set according to the actual situation, and is used to locate the rotation direction of the connector 2 when docking, and ensure the fiber with the connector 2.
  • the end faces of the ceramic ferrules 203 are accurately butted and guide the butt joints of the connectors 2; the rear end faces of the inner sleeves 106 are respectively abutted against the outer sleeves 105 and the adapter body 101 by the outer springs 107 and the inner springs 108, respectively.
  • the elastic force of the outer spring 107 is greater than the elastic force of the inner spring 108.
  • the front end surface of the inner sleeve 106 is respectively resisted by the outer sleeve 105 and the inner retaining ring 110 by the outer sleeve 105 and the adapter body 101 for ensuring the inner sleeve.
  • the cylinder 106 is not ejected relative to the outer sleeve 105 and the adapter body 101 under the action of two springs; and the outer sleeve 105, the adapter body 101 and the inner sleeve 106 can be inserted in the direction of the connector 2
  • the inner side wall of the outer sleeve 105 has a slope 111 for pressing the outer sleeve 105 to press the steel ball 104 into the connector 2 through the inclined surface 111 to lock the connector 2.
  • the connector 2 includes a plug body 201.
  • the plug body 201 houses an optical fiber 202.
  • the front end of the optical fiber 202 is connected with a fiber-optic ceramic ferrule 203.
  • the front end surface of the fiber-optic ceramic ferrule 203 exposes the plug body 201.
  • the outer surface of the plug body 201 is provided with an orientation limiting protrusion 204 adapted to the orientation limiting groove 103 of the adapter 1, and its specific distribution position and number and orientation limit.
  • the socket is adapted to cooperate with the orientation limiting groove 103 for guiding to ensure the rotation of the connector 2 when the connector 2 is docked; the plug body 205 is provided outside the plug body 201, and the plug housing 205 is provided.
  • the front end has a protruding ejector device 206 for mating with the inner sleeve 106 of the adapter 1 to push the inner sleeve 106 to slide relative to the adapter body 101 in the insertion direction; the outer surface of the plug body 201 A circular groove 207 is arranged in the circumferential direction for mating with the steel ball 104 during docking to play the locking function.
  • the ejector 206 of the connector 2 pushes the inner sleeve 106 of the adapter 1 to slide in the insertion direction with respect to the adapter body 101, while the outer sleeve 105 is also acted upon by the outer spring 107.
  • the connector 2 slides in the insertion direction, and the sliding outer sleeve 105 presses the steel ball 104 into the annular groove 207 of the connector 2 through the inclined surface 111 of the inner side wall thereof and clamps it, thereby achieving the purpose of locking the connector 2.
  • the outer spring 107 and the inner spring 108 of the adapter 1 are both in an uncompressed state.
  • the spring is generally pre-compressed with the original length; the outer sleeve 105 of the adapter 1 is in a state where the steel ball 104 is not pressed, and the steel ball 104 can be in the outer sleeve 105 and the adapter body.
  • the movement in the gap between 101 ensures that the ball 104 does not affect the insertion of the connector 2 until the annular groove 207 of the connector 2 has reached the predetermined position.
  • the protruding ejector 206 on the connector 2 pushes the inner sleeve 106 of the adapter 1 to slide in the direction in which the connector 2 is inserted, because The spring force of the outer spring 107 is greater than the spring force of the inner spring 108, so that the sliding of the inner sleeve 106 preferentially compresses the inner spring 108, and the outer sleeve 105 is urged by the outer spring 107 to slide in the direction in which the connector 2 is inserted.
  • the outer sleeve 105 is also in a state of being pressed against the steel ball 104.
  • the sliding outer sleeve 105 presses the steel ball 104 into the connector 2 through the inclined surface 111 of the inner side wall thereof.
  • the annular groove 207 is clamped and engaged, and the steel ball 104 cooperates with the annular groove 207 of the connector 2 so that the adapter 1 and the connector 2 cannot move, thereby completing the locking operation of the connector 2.
  • the outer sleeve 105 of the adapter 1 is first manually slid in the direction in which the connector 2 is pulled out, so that the steel ball 104 is in the outer sleeve 105.
  • the state of up and down movement in the gap between the adapter body 101 and the purpose of unlocking the steel ball 104 and the annular groove 207 of the connector 2 is achieved.
  • the connector 2 is continuously moved in the direction of pulling out. At this time, the steel ball 104 is disengaged from the annular groove 207 of the connector 2, and has no locking function.
  • the connector 2 is smoothly pulled out of the adapter 1.
  • the insertion and removal operations of the adapter 1 and the connector 2 can be completed simply and quickly, and the locking force is reliable, which effectively solves the problem that the existing optical fiber connection components are inconvenient to insert and pull, and the locking force is insufficient.
  • the plug body 201 of the connector 2 is in contact with the adapter body 101.
  • At least one O-ring 208 is embedded in the surface.
  • the design of the O-ring 208 is such that the connector 2 and the adapter 1 are specifically closed in the left region of FIG. The space ensures that the connector 2 can be connected to the adapter 1 to achieve a good dust-proof and water-discharging effect.
  • the contact surface of the adapter body 101 and the mounting interface is provided with a sealed flat pad. 112.
  • the sealing flat pad 112 is designed to have a good dust and water release effect between the adapter 1 and the mounting interface.
  • the O-ring 208 and the sealing flat pad 112 are made of rubber or silicone. Also, the O-ring 208 is provided in two to form a double O-ring 208 design.
  • the protective plug 3 when the adapter 1 is not docked with the connector 2, the protective plug 3 can be inserted into the adapter 1, and the protective plug 3 has The ejector unit 206, the annular groove 207 and the O-ring 208 are identical in construction to the connector 2.
  • a protective cap 4 when the connector 2 is not docked with the adapter 1, a protective cap 4 can be placed outside the plug body 201 of the connector 2, and the protective cap 4 is provided.
  • the plug housing 205 of the connector 2 is screwed.
  • the fiber optic connection component can be designed as a "single-ended waterproof locking type” or a “double-ended waterproof locking type” according to the use requirements.
  • the "single-end waterproof locking type” means that one end of the adapter body 101 has a locking structure for docking with the above-mentioned connector 2 having dustproof, waterproof and locking functions, and the other end is not locked. Structure for docking with existing standard connector 2.
  • the "double-end waterproof locking type” means that both ends of the adapter body 101 have a locking structure, and both are used for docking with the connector 2 having the dustproof, waterproof and locking function.
  • the adapter body 101 of the present invention can be selected from the current industry standard type adapter body 101, including SCSquare Connector, square fiber connector type, FCFerrule Connector, sleeve type connector type, single LCLucent Connector, Lucent. Connector type, double LC type, E2000 type, etc.
  • the connector 2 can be further divided into a UPC-type pin body end face as a super physical end face and an APC-type pin body end face as an angle physical end face, and therefore, adapted to the industry standard type.
  • Adapter body 101, connector 2 of the present invention can be further divided into SC-APC/UPC type, FC-APC/UPC type, single LC-APC/UPC type, dual LC-APC/UPC type, E2000-APC /UPC type, etc.
  • the optical fiber ceramic ferrule 203 can be divided into a UPC type and an APC type according to the end surface grinding manner.
  • the connector 2 specifically includes:
  • the O-ring 208 is embedded in the plug body 201 and is made of silicone material, and two O-rings 208 are provided according to the degree of waterproofing;
  • the fiber-optic ceramic ferrule 203 can be divided into UPC and APC according to the grinding method of the end face thereof;
  • the ceramic ferrule buffer spring 217 is configured to buffer the fiber ceramic ferrule 203 when the connector 2 is docked with the adapter 1;
  • the plug body 201 has the following features: an O-ring 208 mounting groove, an annular groove 207, and an orientation limiting protrusion 204;
  • a plug casing 205 for protecting the stripped fiber optic cable, and having a protruding ejector device 206 at the front end of the plug casing 205 for pushing the inner sleeve 106 of the adapter 1 when the adapter 1 is inserted;
  • the plug tail pipe 210 is configured to protect the stripped fiber optic cable, and cooperate with the aluminum cup 213 to fix the outer skin of the optical cable 215;
  • the optical fiber 202 is a bare optical fiber after the optical cable 215 is stripped;
  • An aluminum tube 211 for mating with the aluminum cup 213 to fix the aramid sand or the tensile wire in the cable 215;
  • the inner waterproof O-ring 212 is used to prevent the water at the tail end of the connector 2 from entering the plug tube 209 and the plug tail tube 210, thereby ensuring the waterproof effect inside the connector 2;
  • the aluminum cup 213 is used to cooperate with the plug tail pipe 210 and the aluminum pipe 211 to respectively fix the outer wall of the optical cable 215 and the aramid sand or the tensile wire;
  • the cable tail sheath 214 is used for buffering when the optical cable 215 is bent, and avoids excessive bending to cause damage of the optical fiber, and can be made of soft plastic or metal spring;
  • the heat-shrinkable tube 216 is used for sealing the gap between the cable and the component after the cable is fixed, and the protection performance can reach the highest level of the connector waterproof standard of IP68IP68.
  • FIG. 15 there is shown an embodiment in which the connector 2 is butted against the adapter 1.
  • the outer sleeve 105 of the adapter 1 presses the steel ball 104 into the annular groove 207 of the connector 2 through the inclined surface 111 of the inner side wall thereof, and is clamped, and the steel ball 104 and The annular groove 207 of the connector 2 cooperates such that the adapter 1 and the connector 2 are incapable of moving, thereby achieving the effect of locking and locking, and the locking force is reliable.
  • FIG 16 there is shown an embodiment of a protective cap 4 having an annular structure at the left end for the attachment of a fiber optic cable to a leash or other traction tool in the conduit.
  • Figure 17 there is shown an embodiment in which the protective cap 4 is fitted to the connector 2, as shown in the figure, the protective cap 4 is screwed to the plug housing 205 of the connector 2, and is threaded. Increase the thread glue to ensure a firm and waterproof connection.
  • FIG. 18 an embodiment of a protective plug 3 is shown.
  • the protective plug 3 has an ejector unit 206, an annular groove 207 and an O-ring 208 which are identical in construction to the connector 2 described above.
  • Figure 19 there is shown an embodiment in which the above-described protective plug 3 is inserted into the adapter 1.
  • the ejector 206 of the protective plug 3 is shown.
  • the inner sleeve 106 of the adapter 1 is pushed, so that the outer sleeve 105 of the adapter 1 slides in the insertion direction, and the steel ball 104 is pressed into the annular groove 207 of the above-mentioned protective plug 3 through the inclined surface 111 of the inner side wall thereof and clamped
  • the steel ball 104 cooperates with the annular groove 207 of the protective plug 3, so that the adapter 1 and the protective plug 3 cannot move, thereby achieving the effect of locking and locking, and the locking force is reliable.

Abstract

本发明公开了一种快速插拔的光纤连接组件，涉及光分配网络领域。该光纤连接组件包括适配器和连接器，其中适配器本体的一端具有锁紧结构，该锁紧结构包括定向限位凹槽、钢珠、外套筒和内套筒；连接器的插头本体上设置有与定向限位凹槽相适配的定向限位凸起，插头本体的外部设有插头外套，该插头外套的前端具有用于顶推内套筒的推顶装置，插头本体的外表面沿其周向设置有与钢珠配合的环形凹槽，当钢珠被适配器外套筒所具有的斜面压入环形凹槽内并卡紧时，该适配器可与连接器锁紧。利用本发明的光纤连接组件可简便、快捷地完成适配器与连接器的插拔操作，且锁紧力度可靠，有效解决了现有光纤连接组件插拔操作不便、锁紧力度不够的问题。

Description

一种连接器、适配器和快速插拔的光纤连接组件 技术领域
本发明涉及光分配网络领域，具体来讲是一种连接器、适配器和快速插拔的光纤连接组件。
背景技术
随着FTTH(Fiber To The Home，光纤到户)的大规模部署，光纤连接组件越来越被大量采用。一般来说，光纤连接组件包括光纤连接器和适配器。而现阶段使用的光纤连接器和适配器绝大部分采用的是行业标准型的连接器及适配器。该类型的连接器及适配器的设计初衷在于解决室内或者有保护盒(箱体)内的光纤连接，因此在实际使用中存在着以下缺陷：
1、现有的标准型连接器及适配器承受拉脱力小，无法满足光缆光纤受较大拉力情况下的连接，因此，一般需要利用喉箍、卡具等方式对光缆光纤额外进行固定和保护，这无疑使得连接及插拔操作不便，同时也增加了使用成本；
2、现有的标准型连接器及适配器的防尘、防水性能较差，不可用于室外，仅能适用于室内或者有保护措施的环境下，使用局限性大。
目前，市面上也存在少部分具备防水性的光纤连接器和适配器，但大部分采用的锁紧方式为旋拧式，而旋拧式锁紧方式由于其自身特性则存在插拔操作繁琐、锁紧力度有限的缺陷。
因此，如何解决现有光纤连接组件插拔操作不便、锁紧力度不够的问题，以及防水、防尘的问题，是本领域技术人员亟待解决的问题。
发明内容
针对现有技术中存在的缺陷，本发明的目的在于提供一种快速插拔的光纤连接组件，解决承受拉脱力小的问题。
为达到以上目的，本发明采取的技术方案是：一种连接器，其用于光纤连接，所述连接器包括插头本体，所述插头本体的外部设有插头外套，该插头外套的前端具有推顶装置；插头本体的外表面设置有用于和所述连接器匹配的适配器卡接的凹槽。
由于凹槽强度大于螺纹，通过凹槽进行卡接能承受更大的拉脱力。
在上述技术方案的基础上，所述推顶装置用于推顶与所述连接器适配的适配器的内套筒。以使适配器发生状态变化，以和连接器连接。
在上述技术方案的基础上，所述推顶装置为由所述插头本体外表面延伸形成的推顶块，或者，
所述推顶装置为与所述插头本体表面间隔设置的推顶片。
不同的推顶装置结构需适配不同的内套筒，最终达到推顶装置能推定内套筒在适配器的轴向上运动即可。
在上述技术方案的基础上，所述插头本体包括：
主体部，所述主体部设有一空腔；
位于主体部一端的插入部，所述插入部远离所述主体部的一端设有插芯固定部，所述插芯固定部上固定有光纤陶瓷插芯，所述凹槽位于所述插入部的外表面。将进行连接的功能结构设置在插入部上，而不是如现有技术中在插头外套外围设置螺纹，降低适配器直径。
在上述技术方案的基础上，所述凹槽位于所述插入部设有插芯固定部所在区域外表面。
由于插芯固定部具有更大的壁厚，并且在光纤陶瓷插芯装入插芯固定部后，其强度更大，将凹槽设置在此处可以承受更大的径向力， 进一步提高承受拉脱力的能力。
在上述技术方案的基础上，所述插头外套由所述主体部向所述插入部延伸形成，且所述推顶装置为插头外套末端延伸形成的推顶片，且所述推顶片与所述插入部间隔设置。由于推顶片与所述插入部间隔设置，使得顶推片能抵持内套筒并伸进适配器的外套筒和对接部之间，以使适配器卡持在连接器上。
在上述技术方案的基础上，所述凹槽为沿所述插头本体周向设置的一圈环形凹槽，或者，
所述凹槽为半球状凹槽。
使用环形凹槽或半球状凹槽各有优点，环形凹槽由于不需非常严格的偏转角度对准，而半球状凹槽则需要更精准的偏转角对准，否则则会导致适配器的卡持体难以准确的卡在半球状凹槽的中心位置，但是，由于半球状凹槽往往可以和卡持体的形状更为匹配，导致其可以提供更好的卡持效果，从而提高承受拉脱力的能力。
本发明还提供一种连接器，其用于光纤连接，其包括：
主体部，所述主体部设有一空腔；
组设于所述主体部的光缆，且所述光缆伸入所述空腔；
位于主体部一端的插入部，所述插入部远离所述主体部的一端设有光纤陶瓷插芯，所述插入部上设有用于和所述连接器匹配的适配器卡接的凹槽，同时，
所述插入部外围设有推顶装置，所述推顶装置用于推顶与所述连接器适配的适配器的内套筒。
由于凹槽整体强度大于螺纹，因此通过凹槽进行卡接能承受更大的拉脱力，并且，在插入部外围设有推顶装置以触发适配器连接并锁紧。
在上述技术方案的基础上，所述推顶装置为设于所述插入部外表面的推顶块，或者，
所述推顶装置为与所述插入部外表面间隔设置的推顶片。
在上述技术方案的基础上，所述凹槽位于所述插入部安装光纤陶瓷插芯区域的外表面。
本发明还提供一种适配器，其用于光纤连接，其包括：
适配器本体，所述适配器本体至少一端为筒状的对接部，所述对接部设有对接通道，适配器本体设有用于容纳光纤陶瓷插芯的插芯收容座，且所述对接部上设有与所述对接通道连通的收容槽；
卡持体，所述卡持体活动收容于所述收容槽内；
活动地套设于所述对接部外的外套筒，所述外套筒具有第一状态和第二状态，当所述外套筒处于第一状态时，所述外套筒抵持所述卡持体，并使部分卡持体不可回退地伸入对接通道，当所述外套筒处于第二状态时，所述外套筒与所述收容槽的开口之间设有供卡持体退出对接通道的让位空间；
活动地组设于所述对接部的内套筒，所述内套筒用于其被朝插入方向推顶后将所述外套筒保持在第一状态。
由于当外套筒处于第一状态时，部分卡持体不可回退地伸入对接通道，伸入对接通道的部分则用于和连接器的凹槽相配合，以连接并锁紧连接器和适配器，并且由于卡持体被抵持住而不能退出，因此其对接通道，使得连接器和适配器的连接非常牢固，可以承受非常高的拉力。
在上述技术方案的基础上，所述卡持体为钢珠，所述收容槽为圆柱孔。且收容槽底部设有档止部，所述档止部用于防止所述钢珠完全掉出所述收容槽。选用钢珠作为卡持体是因为钢珠本身强度高，并且 在收容槽内上下运动不容易被卡住。
在上述技术方案的基础上，所述外套筒设有由内壁凸出的抵持块，当所述外套筒处于第一状态时，所述抵持块位于所述收容槽处，并抵持所述卡持体。通过在外套筒内壁设置抵持块的方式使得除了抵持块的其他区域有给卡持体让位的空间，除了在第一状态下的其他时候，卡持体是不会被抵持并保持在第一状态的，卡持体也能完全回到收容槽内。
在上述技术方案的基础上，所述抵持块靠近插芯收容座一侧具有一斜面。当第一状态切换至第二状态时，斜面可以将卡持体向下导引，使第一状态和第二状态之间的切换更为顺畅。
在上述技术方案的基础上，所述对接部包括靠近插芯收容座的第一段和由所述第一段进一步延伸的第二段，且所述第一段半径大于第二段，所述外套筒靠近插芯收容座的一端套设在所述第一段上，当在第一状态和第二状态之间转换时，所述抵持块在所述第二段上轴向移动。第一段和第二段的直径差是为了形成抵持块移动的空间，降低外套筒的直径，从而减小整个适配器的直径。
在上述技术方案的基础上，所述内套筒的后端面分别通过外弹簧与外套筒相抵持，当外套筒处于第一状态时候，所述内套筒通过外弹簧将外套筒保持于第一状态。
外弹簧用于在当内套筒受到推顶装置的推力后推顶外套筒向前移动，直至卡持体卡在凹槽上，此时外弹簧则将外套筒保持在原位，使抵持块抵持卡持体。
在上述技术方案的基础上，所述内套筒和对接部之间设有轴向设置的内弹簧。设置内弹簧是为了使手动向后拔外套筒时连接器和适配器能自动弹出。
在上述技术方案的基础上，所述外弹簧的弹力大于内弹簧的弹力。使外弹簧的弹力大于内弹簧的弹力使为了使内弹簧能推开连接器即可，无需过大的弹性力，避免在连接器和适配器在连接状态下具有过大的相互推力，降低连接的稳定性。
在上述技术方案的基础上，所述内套筒组合于所述外套筒和对接部之间，且所述内套筒、外套筒和对接部之间可两两相对滑动。
在上述技术方案的基础上，所述外套筒和对接部朝向内套筒的表面末端设有挡圈。挡圈使内套筒不会被内弹簧和外弹簧推出外套筒。
在上述技术方案的基础上，所述卡持体包括由所述对接部延伸的弹性臂，所述弹性臂末端设有卡持块；同时，
当所述外套筒处于第一状态时，所述弹性臂处于未发送弹性形变状态，所述卡持块完全收容于所述收容槽内，当所述外套筒处于第一状态时，所述外套筒抵持在卡持块上，且卡持块部分伸入所述对接通道。
相对使用钢珠的卡持方式，弹性臂末端设有卡持块的实施方式能在外套筒退到第二状态时，卡持块能自动退出对接通道。
本发明还提供一种快速插拔的光纤连接组件，包括适配器和连接器，所述适配器包括：
-适配器本体，所述适配器本体至少一端为筒状的对接部，所述对接部设有对接通道，适配器本体设有用于容纳光纤陶瓷插芯的插芯收容座，所述插芯收容座位于所述适配器本体中部，且所述对接部上设有与所述对接通道连通的收容槽；
-卡持体，所述卡持体活动收容于所述收容槽内；
-活动地套设于所述对接部外的外套筒，所述外套筒具有第一状态和第二状态，当所述外套筒处于第一状态时，所述外套筒抵持所述卡 持体，并使部分卡持体不可回退地伸入对接通道，当所述外套筒处于第二状态时，所述外套筒与所述收容槽的开口之间设有供卡持体退出对接通道的让位空间；
-活动地组设于所述对接部的内套筒，所述内套筒用于其被朝插入方向推顶后将所述外套筒保持在第一状态；
所述连接器包括：
-主体部，所述主体部设有一空腔；
-组设于所述主体部的光缆，且所述光缆伸入所述空腔；
-位于主体部一端的插入部，所述插入部远离所述主体部的一端设有光纤陶瓷插芯，所述插入部上设有用于和所述连接器匹配的适配器卡接的凹槽，同时，
-所述插入部外围设有推顶装置，所述推顶装置用于推顶与所述连接器适配的适配器的内套筒；同时，
当所述连接器插入所述适配器时，所述推顶装置抵持于内套筒，且所述所述外套筒保持在第一状态，部分卡持体不可回退地伸入对接通道并卡持于凹槽。
使用卡持体和凹槽的连接方式锁紧力度相比现有的标准连接器所使用的卡扣锁紧装置锁紧力度更大，更适合于室外复杂的场景，可承受更大的拉脱力。且插入时需要的插入力小，锁紧时锁紧力度大，拔出时，可顺利将连接器拔出，拔出力度小，具备便捷操作的特点，有效解决了现有光纤连接组件插拔操作不便、锁紧力度不够的问题。
本发明还提供一种快速插拔的光纤连接组件，包括适配器和连接器，所述适配器包括两端均能与连接器对接的适配器本体，适配器本体的任意一端具有锁紧结构，该锁紧结构包括开设于适配器本体内侧壁的定向限位凹槽、嵌设于适配器本体外侧壁的钢珠、套设于适配器 本体外且压于钢珠的外套筒、以及设置于适配器本体与外套筒之间的内套筒；其中，所述定向限位凹槽沿适配器本体的周向均匀分布为多个，所述内套筒的后端面分别通过外弹簧、内弹簧与外套筒、适配器本体相抵持，且外弹簧的弹力大于内弹簧的弹力，所述内套筒的前端面分别被外套筒、适配器本体抵持；所述外套筒、适配器本体和内套筒之间可两两相对滑动，且外套筒的内侧壁具有一斜面，用于将钢珠压入连接器以锁紧连接器；
所述连接器包括插头本体，插头本体的外表面设置有与所述定向限位凹槽相适配的定向限位凸起；插头本体的外部设有插头外套，该插头外套的前端具有用于顶推内套筒的推顶装置；插头本体的外表面沿其周向设置有一圈与钢珠配合的环形凹槽，当钢珠被压入环形凹槽内并卡紧时，所述适配器与连接器锁紧。
在上述技术方案的基础上，所述连接器的插头本体与适配器本体的接触面嵌设有至少一个O型密封圈。
在上述技术方案的基础上，所述O型密封圈设置为两个。
在上述技术方案的基础上，当所述适配器安装于安装界面上时，所述适配器本体与安装界面的接触面设有密封平垫。
在上述技术方案的基础上，所述O型密封圈、密封平垫均采用橡皮或硅胶材质。
在上述技术方案的基础上，当适配器不与连接器对接时，在所述适配器中插装防护堵头，该防护堵头具有与所述连接器中结构相同的推顶装置、环形凹槽和O型密封圈。
在上述技术方案的基础上，当连接器不与适配器对接时，在所述连接器的插头本体外套装防护帽，该防护帽与所述连接器的插头外套通过螺纹连接。
在上述技术方案的基础上，所述适配器本体的另一端也具有锁紧结构，用于与所述连接器对接。
在上述技术方案的基础上，所述适配器本体的另一端不具有锁紧结构，用于与现有的标准型连接器对接。
在上述技术方案的基础上，所述定向限位凹槽沿适配器本体的周向均匀分布为三个。
本发明的有益效果在于：
1、本发明的锁紧原理利用钢珠和环形凹槽的配合进行锁紧，锁紧力度相比现有的标准连接器所使用的卡扣锁紧装置锁紧力度更大，更适合于室外复杂的场景。且插入时需要的插入力小，锁紧时锁紧力度大，拔出时对钢珠和环形凹槽进行解锁后，可顺利将连接器拔出，拔出力度小，具备便捷操作的特点，有效解决了现有光纤连接组件插拔操作不便、锁紧力度不够的问题。
2、本发明中，连接器的插头本体与适配器本体的接触面嵌设有至少一个O型密封圈。该O型密封圈的设计使得连接器与适配器之间形成了一个封闭式的空间，保证了连接器与适配器对接后能达到良好的防尘放水效果，进而解决了现有光纤连接组件防尘、防水性能差，不可用于室外的问题。
3、本发明中，当适配器不与连接器对接时，可在适配器中插装防护堵头；当连接器不与适配器对接时，可在连接器的插头本体外套装防护帽。防护堵头与防护帽的设计，能对适配器、连接器在不进行对接时起到很好的防尘、防水等保护作用，从而有效保证了适配器、连接器的使用寿命。
4、本发明可根据不同的使用需求，将光纤连接组件设计为“单端防水锁紧型”或“双端防水锁紧型”，使用范围广且经济适用。
附图说明
图1为本发明实施例中适配器的结构示意图；
图2为图1沿A-A＇方向的剖面图；
图3为本发明实施例中连接器的结构示意图；
图4为图3沿B-B＇方向的剖面图；
图5为适配器与连接器处于对接前状态的示意图；
图6为适配器与连接器处于对接插入过程中的示意图；
图7为连接器准备从适配器中拔出时的示意图；
图8为钢珠解锁后连接器继续拔出时的示意图；
图9为连接器增设O型密封圈、适配器增设密封平垫的结构示意图；
图10为适配器中插装防护堵头的结构示意图；
图11为连接器的插头本体外套装防护帽的结构示意图；
图12为本发明实施例中“单端防水锁紧型”的适配器的结构示意图；
图13为本发明实施例中“双端防水锁紧型”的适配器的结构示意图；
图14为一种连接器的具体实施例的示意图；
图15为图14中连接器与适配器对接后的示意图；
图16为一种防护帽的具体实施例的示意图；
图17为图16中防护帽套装于图14中连接器的示意图；
图18为一种防护堵头的具体实施例的示意图；
图19为图18中防护堵头插装于适配器的示意图；
图20为一种卡持体的具体实施例的示意图。
附图标记：
1-适配器，101-适配器本体，101a-对接通道，101b-收容槽，101c-让位空间，102-陶瓷套管，103-定向限位凹槽，104-钢珠，105-外套筒，105a-抵持块，106-内套筒，107-外弹簧，108-内弹簧，109-外挡圈，110-内挡圈，111-斜面，112-密封平垫；
2-连接器，201-插头本体，201a-主体部，201b-空腔，201c-插入部，201d-插芯固定部，202-光纤，203-光纤陶瓷插芯，204-定向限位凸起，205-插头外套，206-推顶装置，207-环形凹槽，208-O型密封圈，209-插头中管，210-插头尾管，211-铝管，212-内防水O型密封圈，213-铝杯，214-光缆尾护套，215-光缆，216-热缩管，217-陶瓷插芯缓冲弹簧；
3-防护堵头；4-防护帽，40-对接部，42-插芯收容座，43-弹性臂，44-卡持块。
具体实施方式
下面结合附图及具体实施例对本发明作进一步详细说明。
实施例1：
请同时参考图1到图19，本发明实施例提供一种连接器2，其用于光纤连接，连接器2包括插头本体201，插头本体201用于承载光缆215和供手持操作。插头本体201的外部设有插头外套205，该插头外套205的前端具有推顶装置206；插头本体201的外表面设置有用于和连接器匹配的适配器卡接的凹槽。凹槽可以是环形凹槽207。相对于现有技术中使用螺纹的连接方式，使用凹槽作为连接结构能承受更大的拉脱力，并且不需要旋转，可以直接插入，操作方便。并且由于不用旋转，需要的供手操作的空间小，可提高连接器在面板上的密度。
实施例2：
请同时参考图1到图19，作为一个可选的实施例，本实施例与实施例1的区别在于：推顶装置206用于推顶与连接器2适配的适配器1的内套筒106。以使适配器1发生状态变化，以和连接器连接。当然，推顶装置206也可以推顶适配器1的其他类似结构，只要能使适配器1发生状态变化，并达到连接的功效即可。
实施例3：
请同时参考图1到图19，作为一个可选的实施例，本实施例与实施例1的区别在于：推顶装置206为由插头本体201外表面延伸形成的推顶块。若推顶装置206采用此结构，则与推顶装置206匹配的内套筒106则可设一突出外套筒205的凸出部未图示，以使得推顶装置206可推动内套筒106并相对外套筒205轴向移动。
实施例4：
请同时参考图1到图19，作为一个可选的实施例，本实施例与实施例1的区别在于：推顶装置206为与插头本体201表面间隔设置的推顶片。选用推顶片可直接伸入外套筒205内，以使得推顶装置206可推动内套筒106并相对外套筒205轴向移动。
总之，不同的推顶装置206结构需适配不同的内套筒106，最终达到推顶装置206能推定内套筒106相对外套筒205轴向移动即可。
实施例5：
请同时参考图1到图19，具体的，本实施例与实施例1的区别在于：插头本体201包括：
主体部201a，所述主体部201a设有一空腔201b，空腔201b用于连接光缆215；
位于主体部201a一端的插入部201c，所述插入部201c远离所述主体部201a的一端设有插芯固定部201d，所述插芯固定部201d上 固定有光纤陶瓷插芯203，所述凹槽位于所述插入部201c的外表面。将凹槽这一进行连接的功能结构设置在插入部201c上，而不是如现有技术中在插头外围设置螺纹，可降低适配器直径。
进一步的，所述凹槽位于所述插入部201c设有插芯固定部201d所在区域外表面。
由于插芯固定部201d具有更大的壁厚，并且在光纤陶瓷插芯203装入插芯固定部后，其强度更大。在连接器2收到连接在适配器1上后连接器2受到拉力时凹槽会受到径向压力，凹槽设置在此处可以承受更大的径向力，进一步提高承受拉脱力的能力。
具体的，插头外套205由主体部201a向所述插入部201c延伸形成，且所述推顶装置206为插头外套205末端延伸形成的推顶片，且所述推顶片与所述插入部201c间隔设置。由于推顶片与所述插入部201c间隔设置，使得顶推片能抵持内套筒106并伸进适配器的外套筒105和对接部40之间，以使适配器卡持在连接器上。
可选的，凹槽为沿所述插头本体201周向设置的一圈环形凹槽207；或者，凹槽为半球状凹槽。
使用环形凹槽207或半球状凹槽各有优点，环形凹槽207由于不需非常严格的偏转角度对准，而半球状凹槽则需要更精准的偏转角对准，否则则会导致适配器1的卡持体难以准确的卡在半球状凹槽的中心位置，但是，由于半球状凹槽往往可以和卡持体的形状更为匹配，导致其可以提供更好的卡持效果，从而提高承受拉脱力的能力。在本实施例中，为了方便加工，并且由于采用环形凹槽207已经能承受非常高的拉脱力，因此，在本发明实施例中，优选选用了环形凹槽207。
实施例6：
请同时参考图1到图19，本发明还提供一种连接器，其用于光纤 连接，其包括：
主体部201a，所述主体部201a设有一空腔201b；
组设于所述主体部201a的光缆215，且所述光缆215伸入所述空腔201b；
位于主体部201a一端的插入部201c，所述插入部201c远离所述主体部201a的一端设有光纤陶瓷插芯203。插入部201c上设有用于和所述连接器匹配的适配器卡接的凹槽，同时，
所述插入部201c外围设有推顶装置206，推顶装置206用于推顶与连接器适配的适配器的内套筒106。
由于凹槽整体强度大于螺纹，因此通过凹槽进行卡接能承受更大的拉脱力，并且，在插入部201c外围设有推顶装置206以触发适配器1连接并锁紧。由于不需要旋转，可以直接插入，操作方便。并且由于不用旋转，需要的供手操作的空间小，可提高连接器2在面板上的密度。
进一步的，推顶装置206为设于插入部201c外表面的推顶块。若推顶装置206采用此结构，则与推顶装置206匹配的内套筒106则可设一突出外套筒205的凸出部未图示，以使得推顶装置206可推动内套筒106并相对外套筒205轴向移动。
可选的，推顶装置206为与所述插入部201c外表面间隔设置的推顶片。由于推顶片与所述插入部201c间隔设置，使得顶推片能抵持内套筒106并伸进适配器的外套筒105和对接部40之间，以使适配器卡持在连接器上。
进一步的，凹槽位于所述插入部201c安装光纤陶瓷插芯203区域的外表面。由于插芯固定部201d具有更大的壁厚，并且在光纤陶瓷插芯203装入插芯固定部后，其强度更大。在连接器2收到连接在适 配器1上后连接器2受到拉力时凹槽会受到径向压力，凹槽设置在此处可以承受更大的径向力，进一步提高承受拉脱力的能力。
实施例7：
请参考图1-19，本发明还提供一种适配器1，其用于光纤连接，其包括：
适配器本体101，所述适配器本体101至少一端为筒状的对接部40，所述对接部40设有对接通道101a，适配器本体101设有用于容纳光纤陶瓷插芯203的插芯收容座42，所述插芯收容座42位于所述适配器本体101中部，且所述对接部40上设有与所述对接通道101a连通的收容槽101b；
卡持体，所述卡持体活动收容于所述收容槽101b内；
活动地套设于所述对接部40外的外套筒105，所述外套筒105具有第一状态和第二状态，当所述外套筒105处于第一状态时，所述外套筒105抵持所述卡持体，并使部分卡持体不可回退地伸入对接通道101a，当所述外套筒105处于第二状态时，所述外套筒105与所述收容槽101b的开口之间设有供卡持体退出对接通道101a的让位空间101c；
活动地组设于所述对接部40的内套筒106，所述内套筒106用于其被朝插入方向推顶后将所述外套筒105保持在第一状态。
由于当外套筒105处于第一状态时，部分卡持体不可回退地伸入对接通道101a，伸入对接通道101a的部分则用于和连接器2的凹槽相配合，以连接并锁紧连接器2和适配器1，并且由于卡持体被抵持住而不能退出，因此其对接通道101a，使得连接器2和适配器1的连接非常牢固，可以承受非常高的拉力。
实施例8：
具体的，请参考图1-19，与实施例7相比，具体的，卡持体为钢珠104，收容槽101b为圆柱孔。收容槽101b底部设有档止部，档止部用于防止钢珠104完全掉出收容槽101b。具体的，档止部是收容槽101b底部的漏斗结构，可以预见的是，还存在多种其他的挡止方式，如在收容槽101b底部内壁设凸点等方式。选用钢珠104作为卡持体是因为钢珠本身强度高，并且在收容槽101b内上下运动不容易被卡住。收容槽101b底部还有弧形的内缩的档止结构，其用于防止卡持体掉出收容槽101b。
进一步的，外套筒105设有由内壁凸出的抵持块105a，当外套筒105移动到第一状态时，抵持块105a位于收容槽101b处，并抵持卡持体。通过在外套筒内壁设置抵持块的方式使得除了抵持块的其他区域有给卡持体让位的空间，除了在第一状态下的其他时候，卡持体是不会被抵持并保持在第一状态的，卡持体也能完全回到收容槽101b内。
在上述技术方案的基础上，所述抵持块105a靠近插芯收容座42一侧具有一斜面111。当第一状态切换至第二状态时，斜面111可以将卡持体向下导引，使第一状态和第二状态之间的切换更为顺畅。
进一步的，对接部40包括靠近插芯收容座42的第一段和由第一段进一步延伸的第二段，且第一段半径大于第二段，外套筒105靠近插芯收容座42的一端套设在所述第一段上，当在第一状态和第二状态之间转换时，抵持块105a在第二段上轴向移动。第一段和第二段的直径差是为了形成抵持块105a移动的空间，降低外套筒105的直径，从而减小整个适配器1的直径。
进一步的，内套筒106的后端面分别通过外弹簧107与外套筒105相抵持，当外套筒105处于第一状态时候，内套筒106通过外弹簧 107将外套筒105保持于第一状态。可以想到的是，外弹簧107也可以被其他的弹性元件所替代，如弹性体，相斥的磁铁等。在本实施例中，优选使用弹簧。
外弹簧107用于在当内套筒106受到推顶装置206的推力后推顶外套筒105向前移动，直至卡持体卡在凹槽上，此时外弹簧107则将外套筒105保持在原位，即外弹簧107则将外套筒105保持在第一状态，使抵持块105a抵持卡持体，避免连接器2受拉力后卡持体回退，导致连接器2和适配器1在需连接的状态下分离。
实施例9：
请参考图1-图19，作为一个可选的实施方式，内套筒106和对接部40之间设有轴向设置的内弹簧108。设置内弹簧108是为了让内套筒106和外套筒105可以在连接器和适配器断开连接后被整体向后回弹。
进一步的，外弹簧107的弹力大于内弹簧108的弹力。使外弹簧107的弹力大于内弹簧108的弹力。
具体的，内套筒106是组合在外套筒105和对接部40之间的，且内套筒106、外套筒105和对接部40之间可两两相对滑动。使得适配器1能在第一状态和第二状态之间切换。
进一步的，外套筒105和对接部40朝向内套筒106的表面末端设有挡圈。挡圈使内套筒106不会被内弹簧108和外弹簧107推出外套筒105。
实施例10：
请参考图20，作为一个可选的实施例。卡持体包括由对接部40延伸的弹性臂43，弹性臂43末端设有卡持块44；当外套筒105处于第一状态时，弹性臂43处于未发送弹性形变状态，卡持块44完全收容 于收容槽101b内，当外套筒105处于第一状态时，所述外套筒105抵持在卡持块44上，且卡持块44部分伸入对接通道101a。
相对使用钢珠的卡持方式，弹性臂43末端设有卡持块44的实施方式能在外套筒105退到第二状态时，卡持块44能自动退出对接通道101a。但是由于弹性臂43对外套筒105的摩擦，使得在第一状态和第二状态之间的转换需要更大的作用力。
实施例11：
本发明还提供一种快速插拔的光纤连接组件，包括适配器1和连接器2，所述适配器1包括适配器本体101、卡持体、外套筒105和内套筒106。
适配器本体101至少一端为筒状的对接部40，所述对接部40设有对接通道101a，适配器本体101设有用于容纳光纤陶瓷插芯203的插芯收容座42，所述插芯收容座42位于所述适配器本体101中部，且所述对接部40上设有与所述对接通道101a连通的收容槽101b；
卡持体活动收容于所述收容槽101b内；
外套筒105活动地套设于对接部40外，外套筒105具有第一状态和第二状态，当外套筒105处于第一状态时，外套筒105抵持卡持体，并使部分卡持体不可回退地伸入对接通道101a，当所述外套筒105处于第二状态时，外套筒105与收容槽101b的开口之间设有供卡持体退出对接通道101a的让位空间101c；
活动地组设于所述对接部40的内套筒106，所述内套筒106用于其被朝插入方向推顶后将所述外套筒105保持在第一状态；
连接器2包括：
主体部201a，所述主体部201a设有一空腔201b；
组设于所述主体部201a的光缆215，且所述光缆215伸入空腔 201b；
位于主体部201a一端的插入部201c，所述插入部201c远离所述主体部201a的一端设有光纤陶瓷插芯203，所述插入部201c上设有用于和所述连接器匹配的适配器卡接的凹槽，同时，
-所述插入部201c外围设有推顶装置206，所述推顶装置206用于推顶与所述连接器适配的适配器的内套筒106；同时，
当所述连接器2插入所述适配器1时，所述推顶装置206抵持于内套筒106，且所述所述外套筒105保持在第一状态，部分卡持体不可回退地伸入对接通道101a并卡持于凹槽。
使用卡持体和凹槽的连接方式锁紧力度相比现有的标准连接器所使用的卡扣锁紧装置锁紧力度更大，更适合于室外复杂的场景，可承受更大的拉脱力。且插入时需要的插入力小，锁紧时锁紧力度大，拔出时，可顺利将连接器拔出，拔出力度小，具备便捷操作的特点，有效解决了现有光纤连接组件插拔操作不便、锁紧力度不够的问题。
实施例12：参见图1至图8所示，本发明实施例提供一种快速插拔的光纤连接组件，包括适配器1和连接器2。其中，参见图1所示，所述适配器1包括两端均能与连接器2对接的适配器本体101，适配器本体101内包纳有与连接器2的光纤陶瓷插芯203对接所需的陶瓷套管102，适配器本体101的任意一端具有锁紧结构，该锁紧结构包括开设于适配器本体101内侧壁的定向限位凹槽103如图2所示、嵌设于适配器本体101外侧壁的钢珠104优选不锈钢钢珠、套设于适配器本体101外且压于钢珠104的外套筒105、以及设置于适配器本体101与外套筒105之间的内套筒106；所述定向限位凹槽103沿适配器本体101的周向均匀分布为多个本实施例中，均匀分布为三个，具体个数可根据实际情况自行设置，用于定位连接器2对接时的 旋向，保证与连接器2的光纤陶瓷插芯203的端面准确对接并对连接器2的对接起导向作用；所述内套筒106的后端面分别通过外弹簧107、内弹簧108与外套筒105、适配器本体101相抵持，且外弹簧107的弹力大于内弹簧108的弹力，所述内套筒106的前端面分别通过外挡圈109、内挡圈110被外套筒105、适配器本体101抵持，用于保证内套筒106在两个弹簧的作用下不会相对于外套筒105和适配器本体101弹出；并且所述外套筒105、适配器本体101和内套筒106之间可沿连接器2插入方向两两相对滑动，且所述外套筒105的内侧壁具有一斜面111，用于外套筒105滑动后通过斜面111将钢珠104压入连接器2以锁紧连接器2。
参见图3所示，所述连接器2包括插头本体201，插头本体201的内部容纳有光纤202，光纤202的前端连接有光纤陶瓷插芯203，光纤陶瓷插芯203的前端面露出插头本体201外。其中，如图4所示，插头本体201的外表面设置有与所述适配器1的定向限位凹槽103相适配的定向限位凸起204其具体的分布位置与个数均与定向限位凹槽相适配，用于对接时与定向限位凹槽103配合，起到导向作用，保证连接器2对接时的旋向；插头本体201的外部设有插头外套205，该插头外套205的前端具有凸出的推顶装置206，用于对接时与所述适配器1的内套筒106相配合，推动内套筒106相对于适配器本体101沿插入方向滑动；插头本体201的外表面沿其周向设置有一圈环形凹槽207，用于对接时与钢珠104配合，起到卡持锁紧的作用。当适配器1与连接器2对接时，连接器2的推顶装置206推动适配器1的内套筒106相对于适配器本体101沿插入方向滑动，同时，外套筒105在外弹簧107的作用下也沿连接器2插入方向滑动，滑动后的外套筒105通过其内侧壁的斜面111将钢珠104压入连接器2的环形凹 槽207内并卡紧，从而达到锁紧连接器2的目的。
具体来说，参见图5所示，当适配器1与连接器2处于对接前状态时，适配器1的外弹簧107和内弹簧108均处于未压缩的状态本处所指的未压缩不包含弹簧装配后本身具备的预压缩状态，一般弹簧安装后就相对与原长处于预压缩状态；适配器1的外套筒105处于未压紧钢珠104的状态，此时钢珠104可在外套筒105与适配器本体101之间的间隙内活动，保证连接器2的环形凹槽207在未到达预定位置之前，钢珠104不会对连接器2的插入造成影响。
参见图6所示，当适配器1与连接器2处于对接插入过程中时，连接器2上凸出的推顶装置206推动适配器1的内套筒106朝连接器2插入的方向滑动，而因为外弹簧107的弹力大于内弹簧108的弹力，所以内套筒106的滑动优先压缩内弹簧108，而通过外弹簧107推动外套筒105也朝连接器2插入的方向进行滑动。当连接器2处于预定位置时，外套筒105也刚好处于对钢珠104的压紧状态，此时，滑动后的外套筒105通过其内侧壁的斜面111将钢珠104压入连接器2的环形凹槽207内并卡紧，钢珠104与连接器2的环形凹槽207相配合，使得适配器1与连接器2之间无法活动，从而完成连接器2锁紧操作。
参见图7所示，当连接器2准备从适配器1中拔出时，首先用手将适配器1的外套筒105向连接器2拔出时的方向滑动，使得钢珠104处于可在外套筒105与适配器本体101之间的间隙内上下活动的状态，其目的是达到解锁钢珠104和连接器2的环形凹槽207的目的。如图8所示，当钢珠104处于解锁状态时，将连接器2继续向拔出的方向移动，此时，钢珠104从连接器2的环形凹槽207中脱出，已无锁紧功能，可顺利将连接器2从适配器1中拔出。
通过上述操作，可简便、快捷地完成适配器1与连接器2的插拔操作，且锁紧力度可靠，有效解决了现有光纤连接组件插拔操作不便、锁紧力度不够的问题。
在上述基础之上，为了解决现有的标准型连接器2及适配器1的防尘防水性能较差的问题，参见图9所示，所述连接器2的插头本体201与适配器本体101的接触面嵌设有至少一个O型密封圈208，该O型密封圈208的设计使得连接器2与适配器1之间具体来说，是图9中O型密封圈以左的区域形成了一个封闭式的空间，保证了连接器2与适配器1对接后能达到良好的防尘放水效果；另外，当适配器1安装于安装界面上时，所述适配器本体101与安装界面的接触面设有密封平垫112，该密封平垫112的设计使得适配器1与安装界面之间也具有良好的防尘放水效果。本实施例中，所述O型密封圈208、密封平垫112均采用橡皮或硅胶材质。并且，O型密封圈208设置为两个，形成双O型密封圈208设计。
进一步的，可以理解的是，在实际应用中，如图10所示，当适配器1不与连接器2对接时，可在所述适配器1中插装防护堵头3，该防护堵头3具有与所述连接器2中结构相同的推顶装置206、环形凹槽207和O型密封圈208。同样，可以理解的是，在实际应用中，如图11所示，当连接器2不与适配器1对接时，可在所述连接器2的插头本体201外套装防护帽4，该防护帽4与所述连接器2的插头外套205通过螺纹连接。
更进一步的，可以理解的是，在实际应用中，可根据使用需求将光纤连接组件设计为“单端防水锁紧型”或“双端防水锁紧型”。如图12所示，“单端防水锁紧型”即，适配器本体101的一端具有锁紧结构，用于与上述具有防尘防水、锁紧功能的连接器2对接，另一端 不具有锁紧结构，用于与现有的标准型连接器2对接。如图13所示，“双端防水锁紧型”即，适配器本体101的两端均具有锁紧结构，均用于与上述具有防尘防水、锁紧功能的连接器2对接。
另外，可以理解的是，本发明的适配器本体101可选用目前行业标准型的适配器本体101，包括SCSquare Connector，方形光纤连接器型、FCFerrule Connector，套管式连接器型、单联LCLucent Connector，朗讯连接器型、双联LC型、E2000型等。而根据光纤陶瓷插芯203的端面研磨方式不同，连接器2又可分为UPC型插针体端面为超级物理端面和APC型插针体端面为角度物理端面，因此，适配于行业标准型的适配器本体101，本发明的连接器2又可分为SC-APC/UPC型、FC-APC/UPC型、单联LC-APC/UPC型、双联LC-APC/UPC型、E2000-APC/UPC型等。
为了更好的理解本发明，下面通过几个具体实施例对上述光纤连接组件作进一步详细说明。
参见图14所示，其展示的是一种连接器2的实施例，根据光纤陶瓷插芯203的端面研磨方式不同可分为UPC型和APC型，该连接器2具体包括：
O型密封圈208，该O型密封圈208嵌设于插头本体201且采用硅胶材质，并根据防水程度的需要设置有两圈的O型密封圈208；
光纤陶瓷插芯203，根据其端面的研磨方式可分为UPC和APC；
陶瓷插芯缓冲弹簧217，用于当连接器2与适配器1对接时，对光纤陶瓷插芯203起到缓冲保护作用；
插头本体201，该插头本体201上具备以下特征：O型密封圈208安装槽、环形凹槽207、定向限位凸起204；
插头外套205，用于保护开剥后的光纤光缆，在插头外套205的 前端具有凸出的推顶装置206，用于插入适配器1时推动适配器1上的内套筒106；
插头中管209，用于保护开剥后的光纤光缆；
插头尾管210，用于保护开剥后的光纤光缆，同时和铝杯213配合来固定光缆215的外皮；
光纤202，为光缆215开剥后裸露的光纤；
铝管211，用于与铝杯213配合，来固定光缆215内的芳纶沙或抗拉金属丝；
内防水O型密封圈212，用于防止连接器2尾端的水进入插头中管209和插头尾管210内，保证连接器2内部的防水效果；
铝杯213，用来和插头尾管210、铝管211配合，分别固定光缆215外皮和芳纶沙或抗拉金属丝；
光缆尾护套214，用于光缆215弯曲时的缓冲，避免弯曲过大导致光纤损伤，可用软质塑料或金属弹簧制成；
光缆215；
热缩管216，用于光缆固定之后对光缆和零件之间的间隙进行密封，其防护性能能达到IP68IP68是连接器防水等级标准的最高级别。
参见图15所示，其展示的是上述连接器2与适配器1对接后的实施例。如该图所示，连接器2与适配器1对接后，适配器1的外套筒105通过其内侧壁的斜面111将钢珠104压入连接器2的环形凹槽207内并卡紧，钢珠104与连接器2的环形凹槽207相配合，使得适配器1与连接器2之间无法活动，从而达到卡持锁紧的效果，且锁紧力度可靠。
参见图16所示，其展示的是一种防护帽4的实施例，该防护帽4的左端设有一个环形结构，用于光纤光缆在管道中的牵引绳或其他 牵引工具的固定。参见图17所示，其展示的是上述防护帽4套装于上述连接器2的实施例，如该图所示，上述防护帽4与上述连接器2的插头外套205通过螺纹连接，且螺纹上增加螺纹胶，保证连接后的牢固和防水。
参见图18所示，其展示的是一种防护堵头3的实施例。如该图所示，该防护堵头3具有与上述连接器2中结构相同的推顶装置206、环形凹槽207和O型密封圈208。参见图19所示，其展示的是上述防护堵头3插装于适配器1中的实施例，如该图所示，上述防护堵头3插入适配器1后，防护堵头3的推顶装置206推动适配器1的内套筒106，进而使得适配器1的外套筒105向插入方向滑动，并通过其内侧壁的斜面111将钢珠104压入上述防护堵头3的环形凹槽207内并卡紧，钢珠104与防护堵头3的环形凹槽207相配合，使得适配器1与防护堵头3之间无法活动，从而达到卡持锁紧的效果，且锁紧力度可靠。
本发明不局限于上述实施方式，对于本技术领域的普通技术人员来说，在不脱离本发明原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也视为本发明的保护范围之内。
本说明书中未作详细描述的内容属于本领域专业技术人员公知的现有技术。

Claims (25)

  1. 一种连接器，其用于光纤连接，其特征在于，所述连接器包括插头本体(201)，所述插头本体(201)的外部设有插头外套(205)，该插头外套(205)的前端具有推顶装置(206)；插头本体(201)的外表面设置有用于和所述连接器匹配的适配器卡接的凹槽。
  2. 一种如权利要求1所述的连接器，其特征在于，所述推顶装置(206)用于推顶与所述连接器适配的适配器的内套筒(106)。
  3. 一种如权利要求1所述的连接器，其特征在于：
    所述推顶装置(206)为由所述插头本体(201)外表面延伸形成的推顶块，或者，
    所述推顶装置(206)为与所述插头本体(201)表面间隔设置的推顶片。
  4. 一种如权利要求1所述的连接器，其特征在于，所述插头本体(201)包括：
    主体部(201a)，所述主体部(201a)设有一空腔(201b)；
    位于主体部(201a)一端的插入部(201c)，所述插入部(201c)远离所述主体部(201a)的一端设有插芯固定部(201d)，所述插芯固定部(201d)上固定有光纤陶瓷插芯(203)，所述凹槽位于所述插入部(201c)的外表面。
  5. 一种如权利要求4所述的连接器，其特征在于：所述凹槽位于所述插芯固定部(201d)所在区域外表面。
  6. 一种如权利要求4所述的连接器，其特征在于，所述插头外套(205)由所述主体部(201a)向所述插入部(201c)延伸形成，且所述推顶装置(206)为插头外套(205)末端延伸形成的推顶片，且所述推顶片与所述插入部(201c)间隔设置。
  7. 一种如权利要求1所述的连接器，其特征在于：
    所述凹槽为沿所述插头本体(201)周向设置的一圈环形凹槽，或者，
    所述凹槽为半球状凹槽。
  8. 一种连接器，其用于光纤连接，其特征在于，其包括：
    主体部(201a)，所述主体部(201a)设有一空腔(201b)；
    组设于所述主体部(201a)的光缆(215)，且所述光缆(215)伸入所述空腔(201b)；
    位于主体部(201a)一端的插入部(201c)，所述插入部(201c)远离所述主体部(201a)的一端设有光纤陶瓷插芯(203)，所述插入部(201c)上设有用于和所述连接器匹配的适配器卡接的凹槽，同时，
    所述插入部(201c)外围设有推顶装置(206)，所述推顶装置(206)用于推顶与所述连接器适配的适配器的内套筒(106)。
  9. 一种如权利要求8所述的连接器，其特征在于：
    所述推顶装置(206)为设于所述插入部(201c)外表面的推顶块，或者，
    所述推顶装置(206)为与所述插入部(201c)外表面间隔设置的推顶片。
  10. 一种如权利要求8所述的连接器，其特征在于：所述凹槽位于所述插入部(201c)安装光纤陶瓷插芯(203)区域的外表面。
  11. 一种适配器，其用于光纤连接，其特征在于，其包括：
    适配器本体(101)，所述适配器本体(101)至少一端为筒状的对接部(40)，所述对接部(40)设有对接通道(101a)，适配器本体(101)设有用于容纳光纤陶瓷插芯(203)的插芯收容座(42)，且所述对接部(40)上设有与所述对接通道(101a)连通的收容槽(101b)；
    卡持体，所述卡持体活动收容于所述收容槽(101b)内；
    活动地套设于所述对接部(40)外的外套筒(105)，所述外套筒(105)具有第一状态和第二状态，当所述外套筒(105)处于第一状态时，所述外套筒(105)抵持所述卡持体，并使部分卡持体不可回退地伸入对接通道(101a)，当所述外套筒(105)处于第二状态时，所述外套筒(105)与所述收容槽(101b)的开口之间设有供卡持体退出对接通道(101a)的让位空间(101c)；
    活动地组设于所述对接部(40)的内套筒(106)，所述内套筒(106)用于其被朝插入方向推顶后将所述外套筒(105)保持在第一状态。
  12. 一种如权利要求11所述的适配器，其特征在于：所述卡持体为钢珠(104)，所述收容槽(101b)为圆柱孔，且所述收容槽(101b)底部设有档止部，所述档止部用于防止所述钢珠(104)完全掉出所述收容槽(101b)。
  13. 一种如权利要求11所述的适配器，其特征在于：所述外套筒(105)设有由内壁凸出的抵持块(105a)，当所述外套筒(105)处于第一状态时，所述抵持块(105a)位于所述收容槽(101b)处，并抵持所述卡持体。
  14. 一种如权利要求13所述的适配器，其特征在于：所述抵持块(105a)靠近插芯收容座(42)一侧具有一斜面(111)。
  15. 一种如权利要求13所述的适配器，其特征在于：所述对接部(40)包括靠近插芯收容座(42)的第一段和由所述第一段进一步延伸的第二段，且所述第一段半径大于第二段，所述外套筒(105)靠近插芯收容座(42)的一端套设在所述第一段上，当在第一状态和第二状态之间转换时，所述抵持块(105a)在所述第二段上轴向移动。
  16. 一种如权利要求11所述的适配器，其特征在于：所述内套筒 (106)的后端面分别通过轴向设置的外弹簧(107)与外套筒(105)相抵持，当外套筒(105)处于第一状态时候，所述内套筒(106)通过外弹簧(107)将外套筒(105)保持于第一状态。
  17. 一种如权利要求16所述的适配器，其特征在于：所述内套筒(106)和对接部(40)之间设有轴向设置的内弹簧(108)。
  18. 一种如权利要求17所述的适配器，其特征在于：所述外弹簧(107)的弹力大于内弹簧(108)的弹力。
  19. 一种如权利要求11所述的适配器，其特征在于：所述内套筒(106)组合于所述外套筒(105)和对接部(40)之间，且所述内套筒(106)、外套筒(105)和对接部(40)之间可两两相对滑动。
  20. 一种如权利要求17所述的适配器，其特征在于：所述外套筒(105)和对接部(40)朝向内套筒(106)的表面末端设有挡圈。
  21. 一种如权利要求11所述的适配器，其特征在于：所述卡持体包括由所述对接部(40)延伸的弹性臂(43)，所述弹性臂(43)末端设有卡持块(44)；同时，
    当所述外套筒(105)处于第一状态时，所述弹性臂(43)处于未发送弹性形变状态，所述卡持块(44)完全收容于所述收容槽(101b)内，当所述外套筒(105)处于第一状态时，所述外套筒(105)抵持在卡持块(44)上，且卡持块(44)部分伸入所述对接通道(101a)。
  22. 一种快速插拔的光纤连接组件，包括适配器(1)和连接器(2)，其特征在于，所述适配器(1)包括：
    -适配器本体(101)，所述适配器本体(101)至少一端为筒状的对接部(40)，所述对接部(40)设有对接通道(101a)，适配器本体(101)设有用于容纳光纤陶瓷插芯(203)的插芯收容座(42)，所述插芯收容座(42)位于所述适配器本体(101)中部，且所述对接部(40)上 设有与所述对接通道(101a)连通的收容槽(101b)；
    -卡持体，所述卡持体活动收容于所述收容槽(101b)内；
    -活动地套设于所述对接部(40)外的外套筒(105)，所述外套筒(105)具有第一状态和第二状态，当所述外套筒(105)处于第一状态时，所述外套筒(105)抵持所述卡持体，并使部分卡持体不可回退地伸入对接通道(101a)，当所述外套筒(105)处于第二状态时，所述外套筒(105)与所述收容槽(101b)的开口之间设有供卡持体退出对接通道(101a)的让位空间(101c)；
    -活动地组设于所述对接部(40)的内套筒(106)，所述内套筒(106)用于其被朝插入方向推顶后将所述外套筒(105)保持在第一状态；
    所述连接器(2)包括：
    -主体部(201a)，所述主体部(201a)设有一空腔(201b)；
    -组设于所述主体部(201a)的光缆(215)，且所述光缆(215)伸入所述空腔(201b)；
    -位于主体部(201a)一端的插入部(201c)，所述插入部(201c)远离所述主体部(201a)的一端设有光纤陶瓷插芯(203)，所述插入部(201c)上设有用于和所述连接器匹配的适配器卡接的凹槽，同时，
    -所述插入部(201c)外围设有推顶装置(206)，所述推顶装置(206)用于推顶与所述连接器适配的适配器的内套筒(106)；同时，
    当所述连接器(2)插入所述适配器(1)时，所述推顶装置(206)抵持于内套筒(106)，且所述所述外套筒(105)保持在第一状态，部分卡持体不可回退地伸入对接通道(101a)并卡持于凹槽。
  23. 一种快速插拔的光纤连接组件，包括适配器(1)和连接器(2)，其特征在于：所述适配器(1)包括两端均能与连接器(2)对接的适配器本体(101)，适配器本体(101)的任意一端具有锁紧结构，该锁 紧结构包括开设于适配器本体(101)内侧壁的定向限位凹槽(103)、嵌设于适配器本体(101)外侧壁的钢珠(104)、套设于适配器本体(101)外且压于钢珠(104)的外套筒(105)、以及设置于适配器本体(101)与外套筒(105)之间的内套筒(106)；其中，所述定向限位凹槽(103)沿适配器本体(101)的周向均匀分布为多个，所述内套筒(106)的后端面分别通过外弹簧(107)、内弹簧(108)与外套筒(105)、适配器本体(101)相抵持，且外弹簧(107)的弹力大于内弹簧(108)的弹力，所述内套筒(106)的前端面分别被外套筒(105)、适配器本体(101)抵持；所述外套筒(105)、适配器本体(101)和内套筒(106)之间可两两相对滑动，且外套筒(105)的内侧壁具有一斜面(111)，用于将钢珠(104)压入连接器(2)以锁紧连接器(2)；
    所述连接器(2)包括插头本体(201)，插头本体(201)的外表面设置有与所述定向限位凹槽(103)相适配的定向限位凸起(204)；插头本体(201)的外部设有插头外套(205)，该插头外套(205)的前端具有用于顶推内套筒(106)的推顶装置(206)；插头本体(201)的外表面沿其周向设置有一圈与钢珠(104)配合的环形凹槽(207)，当钢珠(104)被压入环形凹槽(207)内并卡紧时，所述适配器(1)与连接器(2)锁紧。
  24. 如权利要求23所述的快速插拔的光纤连接组件，其特征在于：所述连接器(2)的插头本体(201)与适配器本体(101)的接触面嵌设有至少一个O型密封圈(208)，当适配器(1)不与连接器(2)对接时，在所述适配器(1)中插装防护堵头(3)，该防护堵头(3)具有与所述连接器(2)中结构相同的推顶装置(206)、环形凹槽(207)和O型密封圈(208)。
  25. 如权利要求23所述的快速插拔的光纤连接组件，其特征在 于：当连接器(2)不与适配器(1)对接时，在所述连接器(2)的插头本体(201)外套装防护帽(4)，该防护帽(4)与所述连接器(2)的插头外套(205)通过螺纹连接。
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