CN110208912B - Optical fiber plug and optical fiber socket - Google Patents
Optical fiber plug and optical fiber socket Download PDFInfo
- Publication number
- CN110208912B CN110208912B CN201811451891.7A CN201811451891A CN110208912B CN 110208912 B CN110208912 B CN 110208912B CN 201811451891 A CN201811451891 A CN 201811451891A CN 110208912 B CN110208912 B CN 110208912B
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- Prior art keywords
- optical fiber
- plug
- movable
- plate
- orifice plate
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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
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
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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
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
- G02B6/3818—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres of a low-reflection-loss type
- G02B6/3821—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres of a low-reflection-loss type with axial spring biasing or loading means
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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
- G02B6/3807—Dismountable connectors, i.e. comprising plugs
- G02B6/381—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres
- G02B6/3825—Dismountable connectors, i.e. comprising plugs of the ferrule type, e.g. fibre ends embedded in ferrules, connecting a pair of fibres with an intermediate part, e.g. adapter, receptacle, linking two plugs
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
The invention relates to an optical fiber plug and an optical fiber socket, the optical fiber plug comprises a plug shell, a protective component is further arranged on the front side of an optical fiber contact pin in the plug shell, the protective component comprises a fixed pore plate and a movable pore plate which are arranged in parallel in the plugging direction, avoidance holes which are communicated in the plugging direction are arranged on the fixed pore plate and the movable pore plate, the avoidance holes in the fixed pore plate are compared with the optical fiber contact pin in the plugging direction, the movable pore plate is provided with a comparison position which enables the avoidance holes in the movable pore plate to be compared with the avoidance holes in the fixed pore plate in the plugging direction in the moving process, and staggered positions which enable the avoidance holes in the movable pore plate and the avoidance holes in the fixed pore plate to be staggered in the plugging direction, the protective component further comprises an elastic reset structure, and the movable pore plate can move from the staggered positions to the comparison positions under the pushing action of a top pin. The problem of prior art fiber connector adopt the shield dustproof, use inconvenient, occupy the exterior space is solved.
Description
Technical Field
The invention relates to an optical fiber plug and an optical fiber socket.
Background
At present, most of optical fiber terminals in a circular optical fiber connector are unprotected, and the surface of the optical fiber terminal is easily polluted by light, dust and other particles, so that the performance of the optical fiber terminal is unqualified.
The invention discloses a circular optical fiber connector which is disclosed in Chinese patent with an authorization notice number of CN104297863B and an authorization notice date of 2016.03.23, and comprises a shell with a front end serving as a plug-in end and a connecting cap rotatably sleeved on the shell, wherein a packaging shell part provided with a ceramic sleeve is arranged in the shell, the front end of the packaging shell part is provided with at least two guide pin holes circumferentially extending along the front-back direction, and five guide keys which are respectively used for being inserted and matched in corresponding guide key grooves on the shell of an adaptive connector along the front-back direction are arranged at intervals on the periphery of the shell. The circular optical fiber connector further comprises a dustproof cover, when the circular optical fiber connector is not used, the dustproof cover is screwed on the connecting cap to prevent dust from entering the circular optical fiber connector, when the circular optical fiber connector needs to be used, the dustproof cover is detached, and the connecting cap and a shell staple bolt on a shell of the adaptive connector are screwed, guided and matched until the circular optical fiber connector is inserted in place. By adopting the dustproof mode of the dustproof cover, the dustproof cover needs to be manually detached or covered before and after the optical fiber connector is used, the operation is complex, and the dustproof cover is covered outside the optical fiber connector, so that the size of the connector can be increased, and a larger external space is occupied; in addition, the dust cover is an independent part and is easy to lose.
Disclosure of Invention
The invention aims to provide an optical fiber plug, which aims to solve the problems that an optical fiber connector in the prior art adopts a dustproof cover for dust prevention, is inconvenient to use and occupies external space; the invention also aims to provide an optical fiber socket to solve the problems that the optical fiber connector in the prior art adopts a dustproof cover for dust prevention, is inconvenient to use and occupies external space.
The optical fiber plug adopts the following technical scheme:
an optical fiber plug comprises a plug shell, an optical fiber contact pin is fixedly arranged in the plug shell through an encapsulation part, a plug inserting end for inserting an adaptive optical fiber socket is formed in an inner cavity at the front end of the plug shell, a protection part is further arranged at the front side of the optical fiber contact pin in the plug shell, the protection part comprises a fixed pore plate and a movable pore plate which are arranged in parallel in an inserting direction, avoiding holes which are communicated in the inserting direction are arranged on the fixed pore plate and the movable pore plate respectively, the avoiding holes on the fixed pore plate are opposite to the optical fiber contact pin in the inserting direction, the movable pore plate can rotate or translate relative to the fixed pore plate, a comparison position for comparing the avoiding holes on the movable pore plate with the avoiding holes on the fixed pore plate in the inserting direction and a staggered position for staggering the avoiding holes on the movable pore plate and the avoiding holes on the fixed pore plate in the inserting direction are arranged in a moving stroke, and the protection part further comprises an elastic reset structure, the elastic reset structure is connected with the movable orifice plate and provides elastic acting force for keeping the movable orifice plate at the staggered position, the movable orifice plate is provided with a propping matching surface which is used for propping, sliding and matching with a top pin extending in the plugging direction and arranged on a packaging component of the optical fiber socket, and the movable orifice plate can move from the staggered position to the opposite position under the propping action of the top pin.
The invention has the beneficial effects that: the plug shell is provided with a protection component, the protection component comprises a fixed orifice plate and a movable orifice plate, avoidance holes are formed in the fixed orifice plate and the movable orifice plate, the avoidance holes in the fixed orifice plate are compared with the optical fiber contact pins in the inserting direction, and the movable orifice plate is provided with a propping matching surface; and the jack pin extending in the plugging direction is arranged on the socket shell. When the optical fiber plug and the optical fiber contact pin are oppositely inserted along the inserting direction, the ejector pin of the socket shell pushes the abutting matching surface on the movable pore plate to enable the avoiding hole of the movable pore plate to be opposite to the avoiding hole of the fixed pore plate, and the opposite inserting channel of the optical fiber plug and the optical fiber contact pin on the optical fiber socket is opened to enable the optical fiber socket and the optical fiber contact pin on the optical fiber plug to be oppositely inserted; when the optical fiber plug is disconnected from the optical fiber socket, the movable orifice plate is kept in a state of staggering avoidance holes on the movable orifice plate and the fixed orifice plate under the elastic acting force of the elastic resetting structure, and at the moment, the optical fiber contact pin is separated from the outside through the panels of the fixed orifice plate and the movable orifice plate, so that the surface of the optical fiber contact pin is prevented from being polluted by light, dust and other particles.
On the one hand, the movable orifice plate moves under the action of the ejector pin to enable the avoiding hole of the movable orifice plate to be contrasted with the avoiding hole of the fixed orifice plate when the optical fiber plug and the optical fiber socket are oppositely plugged, the opposite plugging channel of the optical fiber plug and the optical fiber contact pin on the optical fiber socket is opened, when the optical fiber plug and the optical fiber socket are disconnected, the avoiding hole of the movable orifice plate is staggered with the avoiding hole of the fixed orifice plate under the action of the elastic reset structure, the optical fiber contact pin of the optical fiber plug is protected, the protection component does not need to be manually disassembled, and the optical fiber connector is convenient to use. On the other hand, the protection component is arranged on the front side of the optical fiber inserting needle and is positioned inside the plug shell, and the external space of the optical fiber plug cannot be occupied. The problem of prior art fiber connector adopt the shield dustproof, use inconvenient, occupy the exterior space is solved.
In order to conveniently control the moving position of the movable orifice plate and make the avoidance holes of the movable orifice plate and the fixed orifice plate contrast, the movable orifice plate moves along the direction perpendicular to the inserting direction and is switched between the staggered position and the contrast position.
In order to reduce the occupied space of the protection component, the movable orifice plate in the scheme is composed of more than two single plates, and each single plate is provided with at least one avoidance hole; therefore, the avoidance holes in the movable pore plate are compared with the avoidance holes in the fixed pore plate by moving the single plates in respective directions, and the movable pore plate with the integral structure occupies smaller space by integrally translating to one side.
In order to simplify the structure of the optical fiber connector, in the scheme, the middle position of each single plate is enclosed into a pushing matching hole which is used for corresponding to a top pin on an optical fiber socket in the inserting direction, the hole wall of the pushing matching hole is a conical surface with a large front part and a small back part, the hole wall of the pushing matching hole forms the abutting matching surface, and the moving path of each single plate takes the pushing matching hole as the center and is radial. Therefore, the single plates can be pushed to move by one ejector pin, and the structure of the optical fiber connector is simplified.
For the convenience carry on spacingly to the movable orifice plate, in this scheme protection part still includes the spacing ring, the interior anchor ring of spacing ring is equipped with the annular that the perpendicular to direction of pegging graft extends, fixed orifice plate sets up with the spacing ring relatively fixed, the movable orifice plate clamps in the annular, elasticity reset structure is for pressing from both sides the reset spring of pressing from both sides between the tank bottom of annular and movable orifice plate.
In order to make the single plate move more smoothly, the movable pore plate is a circular plate with a symmetrical plane, two single plates forming the movable pore plate are separated along a straight line passing through the center of a circle and perpendicular to the plane, a stop lug is arranged at one end, close to the center of a circle, of the plane section of each single plate, the reset spring is arranged at the plane position of the single plate, one end of the reset spring is elastically pressed against the stop lug, and the other end of the reset spring is elastically pressed against the groove bottom of the ring groove. The acting force provided by the reset spring to the single plate is along the moving direction of the single plate, and the single plate moves more smoothly.
In order to simplify the structure of the protective part, the fixed orifice plate is clamped in the annular groove of the limiting ring; the installation structure for fixedly installing the fixed orifice plate is avoided being arranged in the plug shell, and the structure of the protective component is simplified.
Carry out the fore-and-aft direction to adjustable fender for the convenience and carry on spacingly, in this scheme fixed orifice plate is equipped with two, and two fixed orifice plates are in the front and back both sides of adjustable orifice plate respectively.
In order to conveniently realize the opposite insertion of the optical fiber contact pin on the optical fiber connector, a jacking pressure spring is clamped between the protection component and the packaging component, a guide structure for guiding the protection component in the insertion direction and a stop structure for preventing the protection component from being separated under the action of the jacking pressure spring are further arranged on the packaging component, the elastic action force of the jacking pressure spring is greater than that of the reset spring, so that after the jacking pin pushes the avoiding hole in the movable pore plate to be compared with the avoiding hole in the fixed pore plate, when the optical fiber contact pin is continuously inserted, the protection component can be pushed by the optical fiber socket to move towards the rear side of the plug shell, and the opposite insertion of the optical fiber contact pin is realized.
In order to facilitate the design and installation of the blocking structure and the guide structure, the packaging component is provided with a blocking pin extending along the insertion direction, the fixed pore plate is provided with a guide hole for the blocking pin to penetrate through and to be matched with the blocking pin in a guide way, the front side of the blocking pin extending out of the protection component is provided with a blocking platform for blocking the protection component in the forward direction, the blocking pin forms the guide structure, and the blocking platform forms the blocking structure. The stop pin and the stop platform are simple in structure, and design and installation of the stop structure and the guide structure are facilitated.
In order to simplify the structure of the protection component, the movable orifice plate in the scheme is composed of two single plates, the moving directions of the two single plates are opposite, and the pushing matching hole formed by the two single plates in a surrounding mode is a shuttle-shaped hole. Because each veneer is required to be provided with the elastic reset structure, the movable orifice plate consists of two veneers, the number of the elastic reset structures can be reduced as much as possible under the condition of ensuring that the occupied space of the protection component is small, and the structure of the protection component is simplified.
The optical fiber socket adopts the following technical scheme:
the utility model provides an optical fiber socket includes socket shell, there is the optical fiber contact pin through encapsulation part fixed mounting in the socket shell, socket shell's front end is for being used for inserting the socket grafting end in the adaptation optical fiber plug, be equipped with on the encapsulation part along what the grafting direction extended be used for when inserting to set up in the plug shell with the plug shell on the movable orifice plate support the fitting surface and support the contact and promote the movable orifice plate motion, and then make on the movable orifice plate dodge the hole with on the fixed orifice plate and dodge the hole contrast to a round pin that the optical fiber contact pin was inserted the passageway to providing.
The invention has the beneficial effects that: on the one hand, the movable orifice plate moves under the action of the ejector pin to enable the avoiding hole of the movable orifice plate to be contrasted with the avoiding hole of the fixed orifice plate when the optical fiber plug and the optical fiber socket are oppositely plugged, the opposite plugging channel of the optical fiber plug and the optical fiber contact pin on the optical fiber socket is opened, when the optical fiber plug and the optical fiber socket are disconnected, the avoiding hole of the movable orifice plate is staggered with the avoiding hole of the fixed orifice plate under the action of the elastic reset structure, the optical fiber contact pin of the optical fiber plug is protected, the protection component does not need to be manually disassembled, and the optical fiber connector is convenient to use. On the other hand, the protection component is arranged on the front side of the optical fiber inserting needle and is positioned inside the plug shell, and the external space of the optical fiber plug cannot be occupied. The problem of prior art fiber connector adopt the shield dustproof, use inconvenient, occupy the exterior space is solved.
In order to simplify the structure of the optical fiber connector, one ejector pin is arranged in the scheme and is positioned in the middle of the packaging component, and the ejector pin pushes the single plates to move, so that the structure of the optical fiber connector is simplified.
In order to facilitate the pushing of the ejector pin to the veneer, the front end surface of the ejector pin in the scheme is a conical surface with a small front part and a big back part.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of a fiber optic plug of the present invention;
FIG. 2 is a half sectional view of FIG. 1;
FIG. 3 is a left side view of FIG. 2;
FIG. 4 is a schematic diagram of a fiber optic receptacle that mates with the fiber optic plug of FIG. 1;
FIG. 5 is a left side view of FIG. 4;
FIG. 6 is a schematic view of the shielding member of FIG. 2;
FIG. 7 is a schematic structural view of the removable orifice plate of FIG. 2;
FIG. 8 is a diagram illustrating the movable orifice plate and the fixed orifice plate when the fiber optic plug is disconnected from the fiber optic receptacle of FIG. 1;
fig. 9 is a state diagram of the movable orifice plate and the fixed orifice plate when the optical fiber plug is inserted into the optical fiber socket in fig. 1.
In the figure: 1-plug shell, 2-plug plugging end, 3-ring groove, 4-fixed pore plate, 5-movable pore plate, 6-plug optical fiber pin, 7-reset spring, 8-top support pressure spring, 9-stop pin, 10-stop table, 11-sleeve, 12-top pushing matching hole, 13-guide hole, 14-socket shell, 15-socket plugging end, 16-top pin, 17-stop lug, 18-socket optical fiber pin, 19-plug sealing body, 20-socket sealing body, 21-avoidance hole and 51-single plate.
Detailed Description
The following further describes embodiments of the present invention with reference to the drawings.
As shown in fig. 1 to 3, the optical fiber plug of the present invention includes a plug housing 1 and a plug wire sealing body 19 fixed on the plug housing 1, a plug optical fiber pin 6 is fixedly installed in the plug housing 1 through a sealing component, and a plug plugging end 2 for an adaptive optical fiber socket to be plugged into is formed in an inner cavity of a front end of the plug housing 1. As shown in fig. 4 and 5, the optical fiber socket includes a socket housing 14 and a socket sealing body 20 fixed on the socket housing 14, a socket optical fiber pin 18 inserted into the plug optical fiber pin 6 is fixedly installed in the socket housing 14 through a packaging component, and a socket plugging end 15 for plugging into an optical fiber plug is arranged at the front end of the socket housing 14. The package part in the socket housing 14 is provided with a top pin 16 extending along the plugging direction, in this embodiment, one top pin 16 is provided, and the top pin 16 is located in the middle of the package part in the socket housing 14.
In order to protect the plug optical fiber pins 6 in the plug housing 1, a protection component is further installed in the plug housing 1 at the front side of the plug optical fiber pins 6. As shown in fig. 6, the protection component in this embodiment includes a limiting ring, and two fixed pore plates 4 and one movable pore plate 5 that are arranged in parallel in the plugging direction, and the two fixed pore plates 4 are respectively located at the front and rear sides of the movable pore plate 5. The inner ring surface of the limiting ring is provided with a ring groove 3 extending perpendicular to the plugging direction, the two fixed pore plates 4 are clamped and fixed in the ring groove 3, and the movable pore plate 5 is clamped in the ring groove 3 and can move relative to the ring groove 3 along the extending direction of the ring groove 3. The movable orifice plate 5 in this embodiment is a circular plate having a symmetry plane, the circular plate is composed of two single plates 51, the two single plates 51 forming the movable orifice plate 5 are separated along a straight line passing through the center of circle and perpendicular to the symmetry plane, and the middle positions of the two single plates 51 enclose a pushing matching hole 12 for corresponding to the ejector pin 16 on the optical fiber socket in the plugging direction. It should be noted that the fixed orifice plate 4 and the movable orifice plate 5 can be installed at the opening with the opening limiting ring, and then a closing plate is used to close the opening to form the complete limiting ring. The annular groove 3 of the limiting ring is internally provided with a stop surface matched with the peripheral surface of the fixed orifice plate 4 in a stop way, so that the fixed orifice plate 4 is limited to rotate along the plugging direction.
As shown in fig. 7, a stop lug 17 is disposed at one end of the plane section of each single plate 51 close to the center of the circle, a return spring 7 is mounted at the plane position of the single plate 51, and one end of the return spring 7 elastically presses against the stop lug 17, and the other end elastically presses against the groove bottom of the ring groove 3. The two single plates 51 can move in opposite directions relative to the fixed orifice plate 4 by pushing the matching hole 12 as a center. In this embodiment, each of the fixed orifice plates 4 is provided with eight avoiding holes 21 penetrating in the plugging direction, and the eight avoiding holes 21 are respectively contrasted with the eight plug optical fiber pins 6 on the optical fiber plug in the plugging direction. The two single plates 51 are respectively provided with four avoidance holes 21 penetrating in the plugging direction. When the optical fiber socket is disconnected from the optical fiber contact pin, the two single plates 51 forming the movable orifice plate 5 are kept at the positions shown in fig. 8 under the elastic force action of the return spring 7, the avoiding hole 21 on the movable orifice plate 5 and the avoiding hole 21 on the fixed orifice plate are staggered in the plugging direction, the movable orifice plate 5 is in the staggered position, at the moment, the plug optical fiber contact pin 6 is separated from the outside through the panels of the fixed orifice plate 4 and the movable orifice plate 5, and the surface of the optical fiber contact pin is prevented from being polluted by light, dust and other particles. The return spring in this embodiment is configured as an elastic return structure that provides an elastic force to the movable orifice plate 5 to keep it in a staggered position.
When the optical fiber socket and the optical fiber plug are gradually inserted, the two single boards 51 forming the movable orifice plate 5 are gradually separated under the pushing action of the ejector pin 16 until the avoiding hole 21 on the movable orifice plate 5 is compared with the avoiding hole 21 on the fixed orifice plate in the inserting direction, that is, the movable orifice plate 5 and the fixed orifice plate 4 are in the state shown in fig. 9, the movable orifice plate 5 is in the comparison position, the inserting channel of the optical fiber plug is opened, and the optical fiber socket and the optical fiber plug on the optical fiber plug are inserted from the inserting channel. The hole wall of the pushing matching hole 12 forms a pushing matching surface which is matched with the top pin 16 in a pushing and sliding manner. In order to facilitate the ejector pin 16 to eject the single plate 51, the hole wall of the ejection matching hole 12 in the embodiment is a conical surface with a large front part and a small back part, and the ejection matching hole 12 is a shuttle-shaped hole; the front end surface of the corresponding knock pin 16 is a tapered surface with a small front and a large rear.
On one hand, when the optical fiber plug is inserted into the optical fiber socket in an opposite way, the movable orifice plate 5 moves under the action of the ejector pin 16 to enable the avoiding hole 21 of the movable orifice plate 5 to be compared with the avoiding hole 21 of the fixed orifice plate 4, the opposite inserting channel of the optical fiber inserting needle is opened, when the optical fiber plug is disconnected from the optical fiber socket, the avoiding hole 21 of the movable orifice plate 5 is staggered with the avoiding hole 21 of the fixed orifice plate 4 under the action of the reset spring 7 to protect the plug optical fiber inserting needle 6 of the optical fiber plug, the protection component does not need to be manually disassembled, and the optical fiber connector is convenient to use; on the other hand, the protection component is arranged at the front side of the plug optical fiber insertion pin 6 and is positioned inside the plug shell 1, and the external space of the optical fiber plug is not occupied. The problem of prior art fiber connector adopt the shield dustproof, use inconvenient, occupy the exterior space is solved.
In order to conveniently realize the opposite insertion of the optical fiber plug pin on the optical fiber connector, in this embodiment, a supporting pressure spring 8 is clamped between the packaging component and the protection component of the optical fiber plug, a stop pin 9 extending along the insertion direction is further arranged on the packaging component of the optical fiber plug, a guide hole 13 for the stop pin 9 to pass through and to be in guide fit with the stop pin 9 is arranged on the fixed orifice plate 4, and a stop table 10 for performing stop fit on the protection component in the forward direction is arranged on the front side of the stop pin 9 extending out of the protection component. The stop pin 9 forms a guide structure for guiding the protective component in the plugging direction, and the stop table 10 forms a stop structure for preventing the protective component from being separated under the action of the jacking compression spring 8. It should be noted that, in the embodiment, when the elastic acting force of the supporting compression spring 8 is greater than the elastic acting force of the return spring 7, so that the supporting pin 16 pushes the avoiding hole 21 on the movable orifice plate 5 to be compared with the avoiding hole 21 on the fixed orifice plate 4, and when the optical fiber connector is continuously inserted, the protection component is pushed by the optical fiber socket to move to the rear side of the plug housing 1, so as to realize the opposite insertion of the optical fiber pins on the optical fiber connector. It should be noted that a sleeve 11 for axially positioning the jacking compression spring 8 is further arranged in the plug housing 1, and the front end of the sleeve 11 is in abutting fit with the fixed orifice plate 4 on the rear side. The protection component is arranged in the optical fiber connector, can be opened automatically and can move axially to ensure the opening and closing of the protection component, and is compact in structure and space-saving.
In other embodiments, the movable orifice plate can be an integral structure, the movable orifice plate is translated by pushing one side of the movable orifice plate by the ejector pin, and at the moment, only one side of the movable orifice plate needs to be provided with a return spring for returning the movable orifice plate; or the movable pore plate is switched between the opposite position and the staggered position in a rotating mode, specifically, a pushing cylinder for inserting the ejector pin can be arranged at the middle position of the movable pore plate, a spiral groove is arranged on the inner wall of the pushing cylinder, a sliding block in sliding fit with the spiral groove is arranged on the ejector pin, when the optical fiber socket is inserted into the optical fiber plug, the ejector pin is gradually inserted into the pushing cylinder, the sliding block slides along the spiral groove to drive the movable pore plate to rotate to the avoiding hole on the movable pore plate to be opposite to the avoiding hole on the fixed pore plate, at the moment, the sliding block slides to the groove bottom of the spiral groove, and when the optical fiber socket is continuously inserted, the protective component of the ejector block pushing the spiral groove is pushed by the socket to move towards the rear side of the plug shell, so that the opposite insertion of the optical fiber contact pin is realized; in other embodiments, the ejector pin on the fiber optic receptacle may be replaced by an ejector barrel, and the ejector barrel on the fiber optic plug may be replaced by an ejector pin and a slider fixed on the ejector pin, at which time the ejector barrel is only movable in the plugging direction and is not rotatable, and the ejector pin is rotatable about the plugging direction when the fiber optic receptacle and the fiber optic plug are plugged together. It should be noted that, when the movable orifice plate is switched between the contrast position and the staggered position by rotating, the elastic reset structure may be a torsion spring.
In other embodiments, the movable orifice plate may be formed by three or more than four single plates, each of which encloses a pushing fit hole, at this time, a return spring may be disposed between the top of the arc portion of each of the single plates and the bottom of the groove of the ring groove, and the moving path of each of the single plates is radial with the pushing fit hole as the center; or the movable orifice plate can be composed of three or more than four single plates, pushing matching holes matched with the pushing pins in a pushing mode are formed by surrounding the adjacent single plates, the corresponding optical fiber sockets are provided with the pushing pins corresponding to the pushing matching holes, at the moment, one end of each single plate, close to the circle center, of the plane section is provided with a stop lug, the reset spring is installed at the plane position of the single plate, one end of the reset spring is elastically pressed with the stop lug, and the other end of the reset spring is elastically pressed with the groove bottom of the annular groove. In other embodiments, the protection component and the plug housing may be fixedly disposed, a supporting pressure spring is disposed between the ejector pin on the optical fiber socket and the encapsulation component, and an elastic acting force of the supporting pressure spring is greater than an elastic acting force of the return spring, when the ejector pin pushes the movable orifice plate to the opposite position, and when the optical fiber socket is continuously inserted, the ejector pin is pushed by the protection component to move towards the rear side of the socket housing, so that opposite insertion of the optical fiber contact pin is achieved.
In other embodiments, the fixed orifice plate and the stop collar may be an integral structure; the return spring can be arranged between the top of the arc-shaped part on the single plate and the ring groove; the plug can also be a rectangular plug, a triangular plug and the like, and the movable orifice plate and the fixed orifice plate can be replaced by plates with other shapes such as a rectangle shape, a triangular shape and the like according to the requirement. In other embodiments, the pushing matching hole can also be a hole with other shapes such as a round hole, a square hole and the like; the front end surface of the knock pin may be a smooth curved surface gradually increasing in size from front to rear.
In other embodiments, only one fixed orifice plate may be provided, at this time, the movable orifice plate and the fixed orifice plate may be guided by the dovetail groove between them when moving and ensure the position of the movable orifice plate and the fixed orifice plate in the insertion direction, specifically, the movable orifice plate may be provided with a dovetail groove, and the fixed orifice plate is provided with a slider adapted to the dovetail groove, and the extending direction of the dovetail groove is the same as the moving direction of the movable orifice plate; the fixed orifice plate can also be provided with a dovetail groove, and the movable orifice plate is provided with a slide block matched with the dovetail groove, and the extending direction of the dovetail groove is consistent with the moving direction of the movable orifice plate. In other embodiments, the number of the avoiding holes in the fixed orifice plate can be set according to the number of the optical fiber pins, and the quantity of the avoiding holes in the fixed orifice plate is only required to be the same as the number of the optical fiber pins; the number of the avoiding holes on each single plate of the movable hole plate can also be set according to the number of the optical fiber contact pins, but each single plate is provided with at least one avoiding hole.
In other embodiments, a guide groove may be formed in the inner wall of the plug housing, a slider slidably engaged with the guide groove is disposed at one end of the limiting groove close to the plug housing, the guide of the protection component in the plugging direction is realized through the engagement between the slider and the guide groove, a retainer ring is disposed at the front end of the inner wall of the plug housing in the guide groove, and the protection component is retained by the retainer ring to prevent the protection component from coming off under the action of the jacking pressure spring.
In the embodiment of the fiber optic receptacle of the present invention, the structure of the fiber optic receptacle in this embodiment is the same as that of the fiber optic receptacle in the above-mentioned embodiment of the fiber optic plug, and details are not repeated.
Claims (10)
1. An optical fiber plug comprises a plug shell, wherein an optical fiber contact pin is fixedly arranged in the plug shell through an encapsulation part, a plug inserting end for inserting an adaptive optical fiber socket is formed in an inner cavity at the front end of the plug shell, a protection part is further arranged at the front side of the optical fiber contact pin in the plug shell and comprises a fixed pore plate and a movable pore plate which are arranged in parallel in an inserting direction, avoiding holes which are communicated in the inserting direction are arranged on the fixed pore plate and the movable pore plate respectively, the avoiding holes on the fixed pore plate are compared with the optical fiber contact pin in the inserting direction, the movable pore plate can rotate or translate relative to the fixed pore plate, a comparison position for comparing the avoiding holes on the movable pore plate with the avoiding holes on the fixed pore plate in the inserting direction and a staggered avoidance position for staggering the avoiding holes on the movable pore plate and the avoiding holes on the fixed pore plate in the inserting direction are arranged in a moving stroke, the protection component further comprises an elastic reset structure, the elastic reset structure is connected with the movable pore plate and provides elastic acting force for keeping the movable pore plate at the staggered position, the movable pore plate is provided with a propping matching surface used for being in pushing sliding fit with a top pin extending in the plugging direction and arranged on the packaging component of the optical fiber socket, and the movable pore plate can move to the matching position from the staggered position under the pushing action of the top pin.
2. The fiber optic plug of claim 1, wherein the movable orifice plate moves perpendicular to the plugging direction to switch between the staggered position and the opposite position.
3. The optical fiber plug of claim 2, wherein the movable orifice plate is formed of more than two single plates, each single plate having at least one of the avoiding holes.
4. The optical fiber plug of claim 3, wherein each single plate defines a pushing fitting hole at a middle position thereof for corresponding to the top pin of the optical fiber socket in the plugging direction, a hole wall of the pushing fitting hole is a tapered surface with a larger front part and a smaller rear part, the hole wall of the pushing fitting hole forms the abutting fitting surface, and a moving path of each single plate is radial around the pushing fitting hole.
5. The optical fiber plug of claim 4, wherein the movable orifice plate is formed by two single plates, the moving directions of the two single plates are opposite, and the pushing matching hole formed by the two single plates is a shuttle-shaped hole.
6. The optical fiber plug according to claim 3, 4 or 5, wherein the protection component further comprises a limiting ring, an annular groove extending perpendicular to the plugging direction is formed in an inner annular surface of the limiting ring, the fixed orifice plate and the limiting ring are relatively fixedly arranged, the movable orifice plate is clamped in the annular groove, and the elastic reset structure is a reset spring clamped between a groove bottom of the annular groove and the movable orifice plate.
7. The optical fiber plug according to claim 6, wherein the movable orifice plate is a circular plate having a plane of symmetry parallel to the plugging direction, the two single plates constituting the movable orifice plate are spaced apart in the direction of extension of a straight line passing through the center of the circle and perpendicular to the plane of symmetry, each single plate is provided with a stopper at one end of the plane section near the center of the circle, the return spring is mounted at the position of the plane of the single plate and one end of the return spring elastically presses against the stopper, and the other end of the return spring elastically presses against the bottom of the groove of the ring groove.
8. The optical fiber plug of claim 6, wherein the retaining orifice plate is snap-fitted into the annular groove of the retaining ring.
9. The optical fiber plug according to claim 6, wherein a supporting compression spring is clamped between the protection component and the packaging component of the optical fiber plug, a guide structure for guiding the protection component in the plugging direction and a stop structure for preventing the protection component from coming off under the action of the supporting compression spring are further disposed on the packaging component of the optical fiber plug, and the elastic action force of the supporting compression spring is greater than that of the return spring, so that when the optical fiber plug is continuously inserted after the supporting pin pushes the avoiding hole in the movable orifice plate to be aligned with the avoiding hole in the fixed orifice plate, the protection component can be pushed by the optical fiber socket to move to the rear side of the plug housing, thereby achieving the alignment of the optical fiber pins.
10. The utility model provides an optical fiber socket, includes socket shell, there is the optical fiber contact pin through encapsulation part fixed mounting in the socket shell, the front end of socket shell is for being used for inserting the socket grafting end in the adaptation optical fiber plug, characterized by, be equipped with on the encapsulation part of optical fiber socket along what the grafting direction extended be used for when inserting to set up in the plug shell on the movable orifice plate support the fitting surface and support the contact and promote the motion of movable orifice plate, and then make on the movable orifice plate dodge the hole and the hole contrast of dodging on the fixed orifice plate to provide the knock pin of optical fiber contact pin to inserting the passageway.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811451891.7A CN110208912B (en) | 2018-11-30 | 2018-11-30 | Optical fiber plug and optical fiber socket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811451891.7A CN110208912B (en) | 2018-11-30 | 2018-11-30 | Optical fiber plug and optical fiber socket |
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| Publication Number | Publication Date |
|---|---|
| CN110208912A CN110208912A (en) | 2019-09-06 |
| CN110208912B true CN110208912B (en) | 2021-09-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811451891.7A Active CN110208912B (en) | 2018-11-30 | 2018-11-30 | Optical fiber plug and optical fiber socket |
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| Country | Link |
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| CN (1) | CN110208912B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201576113U (en) * | 2009-11-18 | 2010-09-08 | 金师万企业股份有限公司 | Optical fiber connector |
| CN103424814A (en) * | 2012-05-17 | 2013-12-04 | 鸿富锦精密工业（深圳）有限公司 | Optical fiber connector assembly |
| JP2014186260A (en) * | 2013-03-25 | 2014-10-02 | Furukawa Electric Co Ltd:The | Connector |
| CN204758872U (en) * | 2015-06-17 | 2015-11-11 | 新确精密科技（深圳）有限公司 | LC adapter of built -in light screen |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6114597B2 (en) * | 2013-03-26 | 2017-04-12 | 日本航空電子工業株式会社 | Optical connector with shutter |
-
2018
- 2018-11-30 CN CN201811451891.7A patent/CN110208912B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201576113U (en) * | 2009-11-18 | 2010-09-08 | 金师万企业股份有限公司 | Optical fiber connector |
| CN103424814A (en) * | 2012-05-17 | 2013-12-04 | 鸿富锦精密工业（深圳）有限公司 | Optical fiber connector assembly |
| JP2014186260A (en) * | 2013-03-25 | 2014-10-02 | Furukawa Electric Co Ltd:The | Connector |
| CN204758872U (en) * | 2015-06-17 | 2015-11-11 | 新确精密科技（深圳）有限公司 | LC adapter of built -in light screen |
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| Publication number | Publication date |
|---|---|
| CN110208912A (en) | 2019-09-06 |
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