CN103217747B - Optical fiber connector branching device - Google Patents
Optical fiber connector branching device Download PDFInfo
- Publication number
- CN103217747B CN103217747B CN201310067585.4A CN201310067585A CN103217747B CN 103217747 B CN103217747 B CN 103217747B CN 201310067585 A CN201310067585 A CN 201310067585A CN 103217747 B CN103217747 B CN 103217747B
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- Prior art keywords
- socket
- plug
- junction box
- casing
- elastic collar
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Abstract
The invention relates to an optical fiber connector branching device which comprises a branching box and a connector. The connector comprises a plug, a socket and an anti-falling mechanism. The socket is installed on the branching box through a socket shell body. A containing cavity is formed at the front end of a plug shell body of the plug. An anti-falling groove is formed in the peripheral face of the socket shell body. The anti-falling mechanism comprises an elastic piece arranged in the containing cavity, and the elastic piece is provided with an outer end and an inner end, wherein the outer end is connected with the plug shell body, and the inner end inclines backward towards the center of the containing cavity and elastically overhangs so that the inner end can upwarp outward in the single direction when pushed from front to back. The inner end of the elastic piece is used for being clamped into the anti-falling groove formed in the periphery of the socket shell body and preventing an inserting connection end of the socket from falling off the containing cavity, and an unlocking sleeve is arranged on the plug shell body in a guiding, sliding and sleeved mode, wherein the unlocking sleeve is used for exerting thrust from front to back on the inner end of the elastic piece to enable the inner end of the elastic piece to upwarp outwards and to fall off the anti-falling groove. The problem that the radial dimension of a plug in an exiting branching device is large is solved, and the small-sized branching box is further provided.
Description
Technical field
The present invention relates to joints of optical fibre branch means.
Background technology
Existing fiber connector branch means comprises junction box mounting structure and multiple joints of optical fibre, and the plug and socket of mutual grafting when the joints of optical fibre comprise use, wherein each socket is arranged on the junction box of junction box mounting structure.The structure " a kind of Quick pluggable optical fiber connector " disclosed in Chinese patent literature CN201749211U of existing Wet-Mate Fiber Optic Connector, comprise the plug and socket that front end is inserted terminal, also comprise the escapement realizing anticreep after plug and socket grafting, escapement comprises the elastomer seat be arranged on the inserted terminal of plug, elastomer seat is provided with the flexure strip that elasticity forward overhangs, the front end of each flexure strip is provided with pawl, the front end of pawl is wedge structure, the outer wall of elastomer seat being set with one can the movable housing of slide anteroposterior, the shell wall of movable housing is provided with and the corresponding window of pawl quantity and position, outstanding pawl can stretch out from corresponding window, socket comprises the barrel for being set in movable housing periphery of Socket casing and periphery setting thereof, the barrel of barrel is provided with the draw-in groove clamped with corresponding pawl adaptation.In use, the inserted terminal of plug, socket plugs together mutually, pawl in elastomer seat and the draw-in groove on socket is spacing clamps, the grafting realizing plug and socket is locked, when needs plug is separated with socket, pull back movable housing, the window on movable housing is from the position slippage backward of pawl, and oppress Unwinding tooth and inside contract thus pawl is deviate from by the draw-in groove of barrel, realize being separated of plug and socket.Existing Wet-Mate Fiber Optic Connector achieve plug and socket quick grafting, be separated, in order to realize the anticreep after plug and socket grafting, pawl on flexure strip needs to coordinate with the draw-in groove in barrel is spacing, this is a necessary part with regard to making the shell portion on socket, the setting of shell portion adds the radial dimension of socket, be not suitable for using in the conditional workplace of some usage spaces, especially be not suitable for using on junction box, junction box can be made to have larger width and height, and the size of junction box is larger.
Summary of the invention
The object of the present invention is to provide a kind of joints of optical fibre branch means, to solve the larger problem of plug radial dimension in existing branch means.
In order to solve the problem, technical scheme of the present invention is:
Joints of optical fibre branch means, comprise junction box and at least two connectors, connector comprises plug and socket that front end is inserted terminal and realizes plug, the escapement of anticreep after socket grafting, socket is arranged on described junction box by Socket casing, the plug casing front end of plug is provided with the container cavity of the inserted terminal for holding socket, the outer peripheral face of Socket casing is provided with anticreep groove, escapement comprises the elastic component be arranged in described container cavity, elastic component has the outer end be connected with plug casing, tilting backwards elasticity with the center towards container cavity overhangs with the inner of the unidirectional outside tilting when bearing direction thrust from front to back, the inner of described elastic component for snap in described Socket casing periphery anticreep groove in and stop the inserted terminal of socket by deviating from container cavity, slip cap that described plug casing leads is equipped with for applying to the inner of elastic component by the thrust of front backward directions to make to stick up outside the inner of elastic component by the solution lock tube deviate from described anticreep groove.
The box body that described junction box is vertically arranged when comprising use along the vertical direction and bottom, the front end face of described box body is provided with the waveform mounting structure that trend extends along the vertical direction, the downside of described waveform mounting structure is provided with axis vertical with this side bearing of trend and towards to have a down dip the socket installation sleeve extended, the endoporus of socket installation sleeve and the inner space of junction box, the Socket casing sealing of described each socket is coaxially plugged in corresponding socket installation sleeve.
Described solution lock tube comprises the outer sleeve body that slip cap is along the longitudinal direction loaded on plug casing front end and the interior body be arranged in container cavity, inside and outside body is fixedly connected with by web joint, the rear end of described interior body be used for applying to the inner of described elastic collar towards the rear to thrust.
The lower end of described installation sleeve is sheathed on the periphery of the outer sleeve body of described solution lock tube when plug, socket grafting.
Described branch means also comprises the installing plate for being fixedly mounted on corresponding wall or column, described junction box sealing is fixedly mounted on described installing plate, the two ends up and down of described installing plate are provided with the installing plate fixed orifice running through described installing plate along the longitudinal direction, and the middle part of described installing plate is provided with the larynx hoop installed in left-right direction for corresponding larynx hoop and wears groove.
The lower end of junction box is provided with the optical cable access port axially extended along the vertical direction, in described optical cable access port, sealing is coated with the optical cable fixed cover being loaded on corresponding optical cable main line periphery for fixed cover, described optical cable fixed cover and described junction box spline are assembled, and described junction box is provided with and moves axially spacing fixed cover position limiting structure up and down to described optical cable fixed cover.
Described plug casing is convexly equipped with for leading the feather key coordinated with the guide key groove on respective socket housing inwardly in the rear of described elastic component, the front end face of described feather key flushes with the contact pin front end face of plug and to arrange or the front end face of feather key is positioned at the front of the contact pin front end face of plug.
Beneficial effect of the present invention is: when socket inserts the container cavity of plug from front to back, the inner that the inserted terminal of socket can promote elastic collar makes innerly outwards to tilt, when plug insertion puts in place, the inner of elastic collar coordinates with the anticreep groove on the inserted terminal outer peripheral face of socket is spacing, realizes the axial anticreep of plug and socket; When needing plug, socket to be separated, promote backward to separate lock tube, separate move after lock tube and promote elastic collar the inner outside to stick up and by deviating from anticreep groove, then breakaway plug, socket.The grafting of plug, socket be separated all very simple, be applicable to the singlehanded operation in high-altitude; The inner inwardly toward rear-inclined extension of elastic collar, anticreep groove is arranged on the outer peripheral face of Socket casing simultaneously, do not need the anti-falling piece being set with other on Socket casing, greatly reduce the radial dimension of socket, doing that this also makes the radial dimension of plug casing also can try one's best is little, and length needed for the junction box of mounting receptacle and width dimensions are also reduced all as much as possible, the miniaturization achieving junction box makes.
Accompanying drawing explanation
Fig. 1 is the structural representation of an embodiment of joints of optical fibre branch means in the present invention;
Fig. 2 is that the A-A of Fig. 1 is to cut-open view;
Fig. 3 is that the B-B of Fig. 1 is to cut-open view;
Fig. 4 is the I place enlarged drawing in Fig. 2;
Fig. 5 inserts D place enlarged drawing in Fig. 2;
Fig. 6 be in Fig. 1 plug and socket coordinate schematic diagram;
Fig. 7 is structural representation when plug is separated with socket in Fig. 6;
Fig. 8 is the structural representation of socket in Fig. 6.
Embodiment
The embodiment of joints of optical fibre branch means is as shown in Fig. 1 ~ 8: comprise for being fixedly mounted on installing plate 16 on corresponding wall or column, sealing fixed installation junction box on a mounting board and multiple joints of optical fibre.The box body 17 that junction box is vertically arranged when comprising use along the vertical direction and bottom 18, bottom is installed on box body 17 by the clamping structure that it is arranged, the front end face of box body front end end cover 17-1 is provided with three waveform mounting structure 17-2 moving towards to extend along the vertical direction, the downside of each waveform mounting structure is wholely set two axis vertical with this side bearing of trend, and towards the socket installation sleeve 19 extended that has a down dip, the endoporus of socket installation sleeve and the inner space of junction box, each socket seals respectively and is coaxially threaded onto in corresponding socket installation sleeve, the inner hole wall of socket installation sleeve is provided with annular socket installation base, the Socket casing of socket is provided with the bullet pawl structure clamped with corresponding annular socket installation base elasticity, wherein no socket installation sleeve can be blocked by plugging structure, such as in the present invention, optical cable main line is twelve-core optical cable main line, can tap six joints of optical fibre, and all the other six socket installation sleeves can by plugging structure shutoff, when optical cable main line is 20 four optical-fiber cable main line, 12 socket installation sleeves all can be opened.The joints of optical fibre comprise plug and socket that front end is inserted terminal and the escapement of anticreep after realizing plug, socket grafting, and plug comprises plug casing 1, and plug casing 1 front end is provided with the container cavity of the inserted terminal for holding socket.Socket comprises Socket casing 6, and the outer peripheral face of Socket casing 6 is provided with anticreep groove 9, and Socket casing 6 is provided with the guide key groove that guide direction extends along the longitudinal direction in the front of anticreep groove 9, guide key groove is communicated with the front end face of Socket casing 6.Contact pin mounting hole is provided with in Socket casing 6, in contact pin mounting hole, pin modules is housed, preloading spring 10 is top-loaded with between pin modules and Socket casing, pin modules comprises the porcelain bushing 13 of socket contact pin 11 and front end suit thereof, the periphery of porcelain bushing 13 is set with metal protection protector 12, the endoporus of metal protection protector 12 is a stepped hole installed for porcelain bushing, tolerance clearance between metal protection protector 12 and porcelain bushing 13 is less than the gap between metal protection protector 12 and contact pin mounting hole, the outer peripheral face of metal protection protector 12 coordinates with the hole wall guiding movement of contact pin mounting hole, when protective metal shell takes out, porcelain bushing can be taken out of.Escapement comprises the elastic collar be arranged in container cavity, elastic collar has the outer end 4-2 be connected with plug casing 1, with the center towards container cavity tilt backwards elasticity overhang with bear from front to back direction thrust time unidirectional outer swollen inner 4-1, outer end 4-2 is fitted on plug casing 1 by packing ring 15, is press-fited on plug casing outer end specifically by the receipts riveting of packing ring 15.At plug, during socket grafting, the inner 4-1 of elastic collar is used for coordinating with anticreep groove 9 elastic spacing on Socket casing 6 and stoping the inserted terminal of socket by deviating from container cavity, slip cap that plug casing 1 leads is equipped with for applying to the inner 4-1 of elastic collar by the thrust of front backward directions swollen and by the solution lock tube 5 deviate from anticreep groove 9 to make outside the inner 4-1 of elastic collar, separate lock tube 5 and comprise the outer sleeve body 5-1 that slip cap is along the longitudinal direction loaded on plug casing 1 front end and the interior body 5-2 be arranged in container cavity, in, outer sleeve body is fixedly connected with by web joint 5-3, in, outer sleeve body and web joint are wholely set, the rear end of interior body 5-2 be used for the inner 4-1 of elastic collar apply towards the rear to thrust, when plug and socket grafting, the front end sleeve of socket installation sleeve is loaded on the periphery of outer sleeve body, like this at rain by when socket installation sleeve flows down, rainwater can flow down along outer sleeve body, plug can not be entered, contact element is damaged in socket.Plug casing 1 is provided with for sealing the O RunddichtringO 8 of grafting with the inserted terminal of respective socket housing in the rear of described elastic collar, plug casing is convexly equipped with inwardly in the rear of elastic collar for leading the feather key coordinated with the guide key groove on Socket casing, the front end face of feather key is positioned at the front of the plug insertion pin front end face of plug.The rear end of the box body of junction box is provided with and realizes junction box and installing plate seals the O RunddichtringO assembled, the two ends up and down of installing plate are provided with the installing plate fixed orifice running through installing plate along the longitudinal direction, and the middle part of installing plate is provided with the larynx hoop installed in left-right direction for corresponding larynx hoop and wears groove.The lower end of box body is provided with the optical cable access port axially extended along the vertical direction, in optical cable access port, sealing is coated with the optical cable fixed cover 20 being loaded on corresponding optical cable main line periphery for fixed cover, optical cable fixed cover is connected by taper bonded structure 21 is bonding with optical cable main line, taper bonded structure 21 can also play drawing-resistant function, optical cable fixed cover is assembled with box body spline by the spline key 22 spline plug-in mounting that arranges on spline keyway that it is arranged and box body, junction box is provided with spacing fixed cover position limiting structure is moved axially up and down to described optical cable fixed cover, fixed cover position limiting structure comprises the upper positioning boss be convexly equipped on bottom and the lower positioning boss be arranged on box body.
Can by the installing plate fixed orifice on installing plate by installing plate during use, junction box is fixed on corresponding wall (wall), or to wear in groove larynx hoop by installing plate by being threaded onto larynx hoop, junction box colligation is fixed on corresponding column (electric pole), when realizing plug and socket grafting in high-altitude, the singlehanded plug that promotes was moved to respective socket to the previous dynasty by rear, the inner of the inserted terminal of socket pushing tow elastic collar backward, swollen and get out of the way the inserted terminal of socket outside the inner of elastic collar, when the inserted terminal of socket front end face top on plug casing plug together confined planes 7 time, plug, socket grafting puts in place, now the inner of elastic collar coordinates with the anticreep groove elastic spacing on Socket casing and stops the inserted terminal of socket by deviating from container cavity, when needs plug, socket are separated, promote backward to separate lock tube, the interior body separating lock tube to one, the inner of elastic collar towards the rear to thrust, the inner of elastic collar is swollen outward and by deviating from anticreep groove, now can realize the separation of plug, socket by thrust.This Wet-Mate Fiber Optic Connector can realize plug, the quick grafting of socket is separated, simultaneously the inner of elastic collar and anticreep groove spacing cooperation the on plug casing outer peripheral face and realize the axial anticreep of plug, socket, do not need the anti-falling piece being set with other in the periphery of Socket casing, the radial dimension of socket can be accomplished very little, when socket radial dimension is less, the radial dimension of plug also can be accomplished very little, this reduces the size that junction box is required in length and Width, the miniaturization realizing junction box makes; Feather key can ensure the directed grafting of plug and socket, prevents error; Metal protection protector effectively can protect porcelain bushing, solves the problem of the frequent crack damage of porcelain bushing; When rain, waveform mounting structure on box body well achieves drainage, box body does not have ponding, when water is flowed on downside by the upper side edge of waveform mounting structure, rainwater can flow on the outer peripheral face of socket installation sleeve unlock cover outer sleeve body on after continue stream downwards, can not accumulate on the connectors, more the splicing position of right plug and socket can not enter connector and damage contact element.
In other embodiments of the invention: junction box may also be a common rectangular box structure; The quantity being arranged at the socket installation sleeve on junction box can also be arranged to other number as required; Separate lock tube and also can only include inside and outside cover, the outer end of inner sleeve is directly connected in outer putting, and now inner sleeve is a taper sheath; Certainly the feather key be arranged on plug casing all can not be established with the guide key groove be arranged on Socket casing.
Claims (6)
1. joints of optical fibre branch means, comprise junction box and at least two connectors, connector comprises plug and socket that front end is inserted terminal and realizes plug, the escapement of anticreep after socket grafting, socket is arranged on described junction box by Socket casing, it is characterized in that: the plug casing front end of plug is provided with the container cavity of the inserted terminal for holding socket, the outer peripheral face of Socket casing is provided with anticreep groove, escapement comprises the elastic collar be arranged in described container cavity, elastic collar has the outer end be connected with plug casing, tilting backwards elasticity with the center towards container cavity overhangs with the inner of the unidirectional outside tilting when bearing direction thrust from front to back, the inner of described elastic collar for snap in described Socket casing periphery anticreep groove in and stop the inserted terminal of socket by deviating from container cavity, the outer end of elastic collar is fitted in the front end of plug casing by packing ring, slip cap that described plug casing leads is equipped with for applying to the inner of elastic collar by the thrust of front backward directions to make to stick up outside the inner of elastic collar by the solution lock tube deviate from described anticreep groove, separate lock tube and comprise the outer sleeve body that slip cap is along the longitudinal direction loaded on plug casing front end and the interior body be arranged in container cavity, in, outer sleeve body is fixedly connected with by web joint, in, outer sleeve body and web joint are wholely set, described web joint is in the front of described packing ring, in described, outer sleeve body is in packing ring respectively, outside, the rear end of interior body be used for applying to the inner of elastic collar towards the rear to thrust.
2. joints of optical fibre branch means according to claim 1, it is characterized in that: the box body vertically arranged along the vertical direction when described junction box comprises use and bottom, the front end face of described box body is provided with the waveform mounting structure that trend extends along the vertical direction, the downside of described waveform mounting structure is provided with axis vertical with this side bearing of trend and towards to have a down dip the socket installation sleeve extended, the endoporus of socket installation sleeve and the inner space of junction box, the Socket casing sealing of described each socket is coaxially plugged in corresponding socket installation sleeve.
3. joints of optical fibre branch means according to claim 2, is characterized in that: the lower end of described installation sleeve is sheathed on the periphery of the outer sleeve body of described solution lock tube when plug, socket grafting.
4. joints of optical fibre branch means according to claim 1, it is characterized in that: described branch means also comprises the installing plate for being fixedly mounted on corresponding wall or column, described junction box sealing is fixedly mounted on described installing plate, the two ends up and down of described installing plate are provided with the installing plate fixed orifice running through described installing plate along the longitudinal direction, and the middle part of described installing plate is provided with the larynx hoop installed in left-right direction for corresponding larynx hoop and wears groove.
5. joints of optical fibre branch means according to claim 2, it is characterized in that: the lower end of junction box is provided with the optical cable access port axially extended along the vertical direction, in described optical cable access port, sealing is coated with the optical cable fixed cover being loaded on corresponding optical cable main line periphery for fixed cover, described optical cable fixed cover and described junction box spline are assembled, and described junction box is provided with and moves axially spacing fixed cover position limiting structure up and down to described optical cable fixed cover.
6. the joints of optical fibre branch means according to claim 1 ~ 5 any one, it is characterized in that: described plug casing is convexly equipped with for leading the feather key coordinated with the guide key groove on respective socket housing inwardly in the rear of described elastic collar, the front end face of described feather key flushes with the contact pin front end face of plug and to arrange or the front end face of feather key is positioned at the front of the contact pin front end face of plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310067585.4A CN103217747B (en) | 2013-03-04 | 2013-03-04 | Optical fiber connector branching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310067585.4A CN103217747B (en) | 2013-03-04 | 2013-03-04 | Optical fiber connector branching device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103217747A CN103217747A (en) | 2013-07-24 |
| CN103217747B true CN103217747B (en) | 2015-04-29 |
Family
ID=48815693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310067585.4A Expired - Fee Related CN103217747B (en) | 2013-03-04 | 2013-03-04 | Optical fiber connector branching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103217747B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105372774A (en) * | 2014-08-21 | 2016-03-02 | 中兴通讯股份有限公司 | Fiber adapter box |
| CN107317157B (en) * | 2016-04-25 | 2024-01-30 | 普罗斯通信技术（苏州）有限公司 | Integrated cable assembly |
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| CN202033504U (en) * | 2011-05-04 | 2011-11-09 | 宁波天韵通信设备有限公司 | FTTH (Fiber To The Home)-mode optical cable distribution box |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN103217747A (en) | 2013-07-24 |
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Granted publication date: 20150429 Termination date: 20190304 |