CN110794531A - Single-core joint box - Google Patents
Single-core joint box Download PDFInfo
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- CN110794531A CN110794531A CN201910940225.8A CN201910940225A CN110794531A CN 110794531 A CN110794531 A CN 110794531A CN 201910940225 A CN201910940225 A CN 201910940225A CN 110794531 A CN110794531 A CN 110794531A
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- optical cable
- outer protective
- assembly
- protective sleeve
- inner container
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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
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4439—Auxiliary devices
- G02B6/444—Systems or boxes with surplus lengths
- G02B6/4441—Boxes
- G02B6/4446—Cable boxes, e.g. splicing boxes with two or more multi fibre cables
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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
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4439—Auxiliary devices
- G02B6/444—Systems or boxes with surplus lengths
- G02B6/4441—Boxes
- G02B6/4442—Cap coupling boxes
- G02B6/4444—Seals
-
- 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
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4439—Auxiliary devices
- G02B6/4457—Bobbins; Reels
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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
- G02B6/44—Mechanical structures for providing tensile strength and external protection for fibres, e.g. optical transmission cables
- G02B6/4439—Auxiliary devices
- G02B6/4471—Terminating devices ; Cable clamps
- G02B6/44775—Cable seals e.g. feed-through
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Mechanical Coupling Of Light Guides (AREA)
Abstract
The embodiment of the application discloses single core joint box for the realization is to the inventory of optical cable, simplifies the operation of registering one's residence of optical cable, and reduces the cost of manufacture of single core joint box. The embodiment of the application provides a single core splice box, single core splice box includes: the inner container assembly comprises a first outer protective sleeve, a second outer protective sleeve and an inner container assembly, wherein the first outer protective sleeve comprises a first cavity, the second outer protective sleeve comprises a second cavity, and when the first outer protective sleeve and the second outer protective sleeve are connected, the first cavity and the second cavity are used for accommodating the inner container assembly; the liner assembly is provided with a stock keeping mechanism and a clamping groove, and the optical cables entering the first cavity and the second cavity are surrounded on the liner assembly through the stock keeping mechanism; the optical cable comprises a welding protection sleeve, and the welding protection sleeve is accommodated in the clamping groove.
Description
Technical Field
The application relates to the technical field of optical communication, in particular to a single-core joint box.
Background
In the current optical communication network, an optical cable is accessed by using a Fiber Allocation Table (FAT) which adopts a prefabricated cable access mode and can be quickly plugged, and the FAT is widely deployed. When the optical cable is deployed, different lengths of optical cables are required to be provided according to the distance between users, for example, the current optical cables with different lengths have a series of specifications of 33 meters (m), 55m, 105m, 160m and 350 m.
When the optical cable enters the home, a station engineer selects a longer optical cable by estimation so as to avoid the situation that the optical cable is not long enough for home connection, but the overlong optical cable needs to be cut off so as to avoid the optical cable waste.
The present invention provides a single-core splice closure that can be used in conjunction with a connection terminal (CBT), in which the ends of optical cables at both ends are connected to each other through an adapter after the optical cables at both ends are cut off in a desired length.
Since the single-core splice closure needs to be cut off according to the length of the optical cable and adapters are used to connect the optical cables at both ends, the operation of entering the home of the optical cable becomes complicated, and the adapters are also used in the single-core splice closure, which increases the cost.
Disclosure of Invention
The embodiment of the application provides a single-core joint box for the realization is to the inventory of optical cable, simplifies the operation of registering one's residence of optical cable, and reduces the cost of manufacture of single-core joint box.
In order to solve the above technical problem, an embodiment of the present application provides the following technical solutions:
in a first aspect, an embodiment of the present application provides a single-core connector box, which includes: the inner container assembly comprises a first outer protective sleeve, a second outer protective sleeve and an inner container assembly, wherein the first outer protective sleeve comprises a first cavity, the second outer protective sleeve comprises a second cavity, and when the first outer protective sleeve and the second outer protective sleeve are connected, the first cavity and the second cavity are used for accommodating the inner container assembly; the liner assembly is provided with a stock keeping mechanism and a clamping groove, and the optical cables entering the first cavity and the second cavity are surrounded on the liner assembly through the stock keeping mechanism; the optical cable comprises a welding protection sleeve, and the welding protection sleeve is accommodated in the clamping groove. In the above scheme, two outer protective sleeves are arranged in the single-core connector box in the embodiment of the application, and when the two outer protective sleeves are connected together, the liner assembly can be accommodated in a cavity formed by the two outer protective sleeves, so that the liner assembly is waterproof, dustproof and damage-proof; the optical cable is wound on the inner container assembly through the inventory mechanism, and even if the optical cable is too long when the optical cable is in the home, the optical cable can be inventory through the inner container assembly, so that the secondary processing of the optical cable is avoided, and the home entry operation of the optical cable is simplified; the optical cable adopts the fibre mode of melting, and the optical cable after will melting the fibre through butt fusion protective case is even as an organic whole, reduces the cost of manufacture of single core splice box, still is provided with the draw-in groove among the inner bag subassembly, consequently butt fusion protective case can be by the holding in the draw-in groove to guarantee that the optical cable is not broken, strengthen the life of optical cable.
In one possible implementation, the inventory mechanism includes: the optical cable is led to enter the fiber protection assembly after the fiber running direction of the optical cable is changed according to the guide assembly, and the optical cable extends out of the fiber protection assembly and then surrounds the inner container assembly; the fiber protecting assembly is used for limiting the optical cable to be separated from the inner container assembly, so that the optical cable is surrounded on the inner container assembly. In the above scheme, the inner container assembly is provided with a stock keeping mechanism, the stock keeping mechanism is positioned on the outer surface of the inner container assembly, the stock keeping mechanism is a component for providing the optical cable to surround the inner container assembly, the inventory mechanism may include a guide assembly and a fiber protection assembly, the guide assembly being a module that redirects fiber travel of the fiber optic cable, after the fiber optic cable enters the first cavity from the first outer protective jacket, the optical cable needs to be wound on the inner container assembly, firstly, the optical cable changes the fiber running direction of the optical cable according to the guiding assembly, so that the optical cable enters the fiber protecting assembly after changing the fiber running direction according to the guiding assembly, the fiber protecting component can also be called as fiber protecting teeth, and is used for limiting the optical cable to be separated from the liner component, so that the optical cable is surrounded on the liner component, the surrounding of the optical cable on the liner assembly can be realized through the guide assembly and the fiber protection assembly, so that the optical cable is stored in the single-core joint box.
In one possible implementation, the guide assembly includes: the turning block is used for converting the optical cable from the axial direction of the liner assembly to the direction surrounding the liner assembly, and after the optical cable surrounds the liner assembly, the optical cable enters the fiber walking channel from the direction surrounding the liner assembly. In the above scheme, specifically, after the optical cable enters the first cavity from the first outer protective sheath, the optical cable needs to be looped around the inner container assembly, firstly, the optical cable may be converted in the fiber routing direction by the turning block, the turning block may convert the optical cable from the axial direction of the inner container assembly to the direction around the inner container assembly, after the optical cable is looped around the inner container assembly, the optical cable enters the fiber routing channel from the direction around the inner container assembly, the fiber routing channel is a channel after the optical cable is looped around the surface of the inner container assembly, and therefore the fiber routing direction of the optical cable may be along the fiber routing channel. The optical cable can be wound on the inner container assembly through the steering block and the fiber running channel, so that the optical cable is stored in the single-core joint box.
In a possible implementation manner, the guiding assembly further includes: and the lower guide channel is used for guiding the optical cable to enter the fiber walking channel obliquely below the axial direction of the inner container assembly after the optical cable enters the fiber walking channel from the direction surrounding the inner container assembly. In the above scheme, specifically, the fiber running channel is connected to the lower guide channel, after the optical cable is connected to the fiber running channel, the optical cable enters the lower guide channel, and the optical cable is guided by the lower guide channel to enter the running fiber obliquely below the inner container assembly in the axial direction. The optical cable is guided by the lower guide channel along the optical fiber, so that the optical cable can still be kept in the axial direction of the liner assembly after surrounding the liner assembly, and the optical cable can extend outwards through the second outer protective sleeve to complete the inventory of the optical cable in the single-core joint box.
In one possible implementation, the inventory mechanism further includes: the pressing block is used for pressing the optical cable below the pressing block after the optical cable is guided by the lower guide channel to enter the traveling fiber obliquely below the axial direction of the liner assembly, so that the optical cable enters the traveling fiber below the pressing block. In the above scheme, wherein, in order to avoid the optical cable to become flexible in single core joint box, the inventory mechanism still includes the briquetting, and after lower guide channel guide optical cable advanced walking fibre to the oblique below of the axial direction of inner bag subassembly, this briquetting can be pressed the optical cable below the briquetting, realizes the firm of optical cable for the optical cable advances walking fibre from below the briquetting.
In one possible implementation, the bottom layer surface of the pressing block is wavy. In the above scheme, the optical cable is pressed below the pressing block, and if the bottom layer surface of the pressing block is wavy, the friction force of the bottom layer surface can be increased, so that the function of fixing the optical cable by the pressing block is realized.
In a possible implementation manner, the liner assembly is provided with a first inventory mechanism and a second inventory mechanism which are symmetrical with respect to a central point of the clamping groove, a first optical cable entering the first cavity is surrounded on the liner assembly through the first inventory mechanism, a welding point formed after welding of the tail end of the first optical cable and the front end of the second optical cable is arranged in the welding protection sleeve, and a second optical cable entering the second cavity is surrounded on the liner assembly through the second inventory mechanism. In the above scheme, when the first optical cable and the second optical cable both have the redundant length, and the first optical cable and the second optical cable both need to be stocked, the inner liner assembly is provided with a first stocking mechanism and a second stocking mechanism which are symmetrical with respect to a center point of the card slot, for example, the first stocking mechanism and the second stocking mechanism are symmetrical left and right on an outer surface of the inner liner assembly, and the first optical cable and the second optical cable are surrounded on the inner liner assembly through the respective stocking mechanisms. If first optical cable and second optical cable need carry out the fusion fibre, the butt fusion point that forms after the butt fusion of the end of first optical cable and the front end of second optical cable sets up in the butt fusion protective case promptly, this butt fusion protective case holding is in aforementioned draw-in groove, and the first optical cable that gets into first cavity encircles on the inner bag subassembly through first inventory mechanism, and the butt fusion protective case of connecting first optical cable and second optical cable is in the draw-in groove card of joint on the inner bag subassembly, and the second optical cable that gets into the second cavity encircles on the inner bag subassembly through second inventory mechanism. The first inventory mechanism and the second inventory mechanism can be used for simultaneously inventory two optical cables on the liner assembly, so that the optical cables with larger redundant length can be inventoried.
In one possible implementation manner, the first outer protection sleeve, the second outer protection sleeve and the liner assembly are all cylinder structures; the axial direction of the first outer protective sleeve, the axial direction of the second outer protective sleeve, the axial direction of the liner assembly, the vertical direction of the circle center of the optical cable surrounding the liner assembly and the axial direction of the fusion welding protective sleeve are mutually overlapped together. In the above scheme, specifically, the first outer protective sheath, the second outer protective sheath and the liner assembly are all in a cylindrical structure, in order to achieve inventory of the optical cable on the liner assembly, a plurality of inventory mechanisms which are symmetrically distributed about a central point of the liner assembly can be further provided, for example, a third inventory mechanism and a fourth inventory mechanism which are axisymmetric or centrosymmetric about the central point of the liner assembly are provided on the liner assembly, that is, the third inventory mechanism and the fourth inventory mechanism are both provided on the outer surface of the liner assembly, when the optical cable needs to be inventory, the optical cable is wound on the outer surface of the liner assembly for a plurality of circles through the third inventory mechanism and the fourth inventory mechanism, so that the optical cable can be wound on the outer surface of the liner assembly more firmly.
In a possible implementation manner, a third inventory mechanism and a fourth inventory mechanism which are axially symmetrical or centrosymmetric with respect to a central point of the liner assembly are arranged on the liner assembly. In the above-described aspect of the present invention,
in one possible implementation, the single-core connector box further includes: the first outer protective sleeve is connected with the second outer protective sleeve through threads, and the rubber gasket is located between the first outer protective sleeve and the second outer protective sleeve and is extruded and deformed. In the above scheme, wherein, the appearance of two outer protective sheaths in the single core splice box is cylindrical, and two outer protective sheaths pass through threaded connection, and the rubber packing ring is in between first outer protective sheath and the second outer protective sheath, and when two outer protective sheaths were screwed, the rubber packing ring was extruded deformation to the rubber packing ring realizes the waterproof sealing at the kneck of single core splice box.
In one possible implementation, the single-core connector box further includes: the optical cable comprises a first rubber plug and a second rubber plug, wherein the first rubber plug is of a hollow structure, and the optical cable extends out of the first rubber plug and then enters the first cavity; the second rubber plug is of a hollow structure, and the optical cable extends out of the second rubber plug after being surrounded on the inner container assembly; the first rubber plug is arranged in the first cavity and at an inlet of the first outer protective sleeve, and the first rubber plug is attached to the outer surface of the liner assembly; the second rubber plug is arranged in the second cavity and at an outlet of the second outer protective sleeve, and the second rubber plug is attached to the outer surface of the inner container assembly. In the above scheme, the single-core connector box comprises two outer protective sleeves, a rubber plug is arranged in a cavity of each outer protective sleeve, and each rubber plug is of a hollow structure, so that the optical cable can penetrate through the rubber plugs, and the optical cable can be continuously stored on the liner assembly. According to the single-core joint box, the optical cable can be coiled and stored without distortion, and according to the explanation on the rubber gasket, the first rubber plug and the second rubber plug, the practical measurement shows that the single-core joint box can not only realize the coiling and storing without distortion of the optical cable, but also realize the IP 68-level protection of a joint box product.
In a possible implementation manner, the first rubber plug is of a tapered structure, and a top end of the first rubber plug faces the inlet of the first outer protective sleeve; the second rubber plug is of a conical structure, and the top end of the second rubber plug faces the outlet of the second outer protective sleeve. In the above scheme, wherein, first rubber end cap and second rubber end cap all can be the toper structure, the top of first rubber end cap is towards the entry of first outer protective sheath, the end-to-end connection inner bag subassembly of first rubber end cap, the top of second rubber end cap is towards the export of second outer protective sheath, the end-to-end connection inner bag subassembly of second rubber end cap, thereby make the inner bag subassembly pass through first rubber end cap and first cavity sealing connection, the inner bag subassembly passes through second rubber end cap and second cavity sealing connection, improve the waterproof level of single core splice box.
Drawings
Fig. 1 is a schematic perspective view of a single-core connector box according to an embodiment of the present application;
fig. 2 is a schematic top view of a single-core connector box according to an embodiment of the present application;
fig. 3 is a schematic perspective view of a first outer protective sheath and a second outer protective sheath provided in an embodiment of the present application;
fig. 4 is a schematic perspective view of a liner assembly provided in an embodiment of the present application;
FIG. 5 is a schematic perspective view of a liner assembly according to an embodiment of the present disclosure;
FIG. 6 is a schematic cross-sectional view of a bladder assembly provided in accordance with an embodiment of the present application;
FIG. 7 is a schematic structural diagram of a symmetrical arrangement of an inventory mechanism provided in an embodiment of the present application;
FIG. 8 is a schematic cross-sectional view of a bladder assembly provided in accordance with an embodiment of the present application;
wherein 10 denotes a first outer protective sheath, 20 denotes a second outer protective sheath, 30 denotes a liner assembly, 40 denotes a fiber optic cable, 301 denotes a stock mechanism, 302 denotes a card slot, 3011 denotes a guide assembly, 3012 denotes a fiber protection assembly, 30111 denotes a turning block, 30112 denotes a fiber running channel, 30113 denotes a lower guide channel, 3013 denotes a press block, 301a denotes a first stock mechanism, 301b denotes a second stock mechanism, 301c denotes a third stock mechanism, 301d denotes a fourth stock mechanism, 50 denotes a rubber washer, 60 denotes a first rubber plug, and 70 denotes a second rubber plug.
Detailed Description
The embodiment of the application provides a single-core joint box for the realization is to the inventory of optical cable, simplifies the operation of registering one's residence of optical cable, and reduces the cost of manufacture of single-core joint box.
Embodiments of the present application are described below with reference to the accompanying drawings.
The terms "first," "second," and the like in the description and in the claims of the present application and in the above-described drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the terms so used are interchangeable under appropriate circumstances and are merely descriptive of the various embodiments of the application and how objects of the same nature can be distinguished. Furthermore, the terms "comprises" and "comprising," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a product or device that comprises a list of modules is not necessarily limited to those modules, but may include other elements not expressly listed or inherent to such product or device.
Fig. 1 is a schematic perspective view of a single-core connector box according to an embodiment of the present application. As shown in fig. 2, a schematic top view of a single-core connector box provided in an embodiment of the present application, the single-core connector box includes: a first outer protective sheath 10, a second outer protective sheath 20, and a liner assembly 30, wherein,
the first outer protective sleeve comprises a first cavity, the second outer protective sleeve comprises a second cavity, and when the first outer protective sleeve and the second outer protective sleeve are connected, the first cavity and the second cavity are used for accommodating the liner assembly;
the liner component 30 is provided with an inventory mechanism 301 and a clamping groove 302, and optical cables entering the first cavity and the second cavity are surrounded on the liner component through the inventory mechanism;
the optical cable 40 includes a fusion splice protection sleeve thereon that is received in the card slot.
Wherein, be provided with two outer protective sheaths in the single core splice box, be first outer protective sheath and second outer protective sheath respectively, these two outer protective sheaths can be called left outer protective sheath and right outer protective sheath again, and two outer protective sheaths can mutually support and link together, for example two outer protective sheaths can adopt threaded connection's mode, perhaps adopt the mode of buckle connection, and this place is not injectd.
As shown in fig. 3, for the schematic three-dimensional structure of the first outer protective sleeve and the second outer protective sleeve provided in the embodiment of the present application, two outer protective sleeves are provided in a single-core connector box in the embodiment of the present application and have a cavity respectively, and when the two outer protective sleeves are connected together, the inner container assembly can be accommodated in the cavity formed by the two outer protective sleeves, so that various protection functions of the inner container assembly, such as water resistance, dust resistance, and damage resistance, are realized. The appearance structure and the material of the two outer protective sleeves are not limited, for example, the outer protective sleeves can be made of metal materials, plastics or resin materials, and the like, and the outer protective sleeves can be in various shapes, such as cylinders, flat cylinders, cuboids or various shapes arranged according to actual optical cable home-entry scenes.
In the embodiment of the application, two outer protective sleeves are arranged in the single-core joint box and respectively provided with a cavity, the shape of the cavity is not limited, and only the inner container assembly needs to be contained, for example, the cavity can form a semicircular cavity.
The inner container assembly can be used for inventory when the optical cable is redundant, so that the redundant optical cable can be wound on the inner container assembly. For example, the optical cable is too long when the optical cable is in the home, and the optical cable can be stored through the liner assembly, so that the secondary processing of the optical cable is avoided, and the home operation of the optical cable is simplified. The single-core joint box provided by the embodiment of the application can realize the inventory of redundant optical cables under the condition of realizing the limit volume of a product. Specifically, be provided with the inventory mechanism on the inner bag subassembly, this inventory mechanism is located the surface of inner bag subassembly, and the inventory mechanism is the part that provides the optical cable and encircles the inner bag subassembly, and the specific structure of this inventory mechanism constitutes and the distribution mode of inventory mechanism at the inner bag subassembly surface, and this place does not limit.
In the embodiment of this application, the optical cable can be called optic fibre again, and the optical cable adopts the fibre-melting mode, and the optical cable after will melting the fibre through butt fusion protective case links as an organic wholely, reduces the cost of manufacture of single core splice box, because the optical cable need use butt fusion protective case to connect together after melting the fibre, consequently can also be provided with the draw-in groove in the inner bag subassembly for butt fusion protective case can be by the holding in the draw-in groove, thereby guarantees that the optical cable is not broken, strengthens the life of optical cable. The concrete shape to the draw-in groove does not do the injecing with this draw-in groove deployment mode on inner bag subassembly in this application embodiment, and is different to the position of butt fusion protective case on the optical cable, and the position of the draw-in groove on the inner bag subassembly also can come nimble setting according to specific scene, as long as this draw-in groove can the holding butt fusion protective case can.
In this application embodiment, the optical cable can realize the inventory in single core splice box, and the optical cable gets into in the first cavity from first outer protective sheath earlier, then the optical cable encircles on inner bag subassembly through the inventory mechanism, then this optical cable stretches out from the second outer protective sheath, and this optical cable can enter the home after taking inventory through single core splice box.
In some embodiments of the present application, as shown in fig. 2, the inventory mechanism includes: a guide component 3011 and a fiber-protecting component 3012, wherein,
the guiding assembly is used for changing the fiber running direction of the optical cable, so that the optical cable enters the fiber protecting assembly after changing the fiber running direction according to the guiding assembly, and the optical cable extends out of the fiber protecting assembly and then surrounds the inner container assembly;
the fiber protection assembly is used for limiting the optical cable to be separated from the liner assembly, so that the optical cable is surrounded on the liner assembly.
Wherein, the inner container component is provided with a stock keeping mechanism which is positioned on the outer surface of the inner container component and is a part for providing the optical cable to surround the inner container component, the inventory mechanism may include a guide assembly and a fiber protection assembly, the guide assembly being a module that redirects fiber travel of the fiber optic cable, after the fiber optic cable enters the first cavity from the first outer protective jacket, the optical cable needs to be wound on the inner container assembly, firstly, the optical cable changes the fiber running direction of the optical cable according to the guiding assembly, so that the optical cable enters the fiber protecting assembly after changing the fiber running direction according to the guiding assembly, the fiber protecting component can also be called as fiber protecting teeth, and is used for limiting the optical cable to be separated from the liner component, so that the optical cable is surrounded on the liner component, the surrounding of the optical cable on the liner assembly can be realized through the guide assembly and the fiber protection assembly, so that the optical cable is stored in the single-core joint box.
Further, in some embodiments of the present application, as shown in fig. 4, a schematic perspective view of a liner assembly provided in the embodiments of the present application is provided, where the liner assembly is provided with an inventory mechanism, the inventory mechanism includes a guide assembly, and the guide assembly includes: a turning block 30111 and a fiber channel 30112, wherein,
the turning block is used for converting the optical cable from the axial direction of the liner assembly into the direction surrounding the liner assembly, and after the optical cable surrounds the liner assembly, the optical cable enters the fiber passing channel from the direction surrounding the liner assembly.
Specifically, after the optical cable enters the first cavity from the first outer protective sleeve, the optical cable needs to be wound around the inner container assembly, firstly, the optical cable can be converted in the fiber winding direction through the turning block, the turning block can convert the optical cable from the axial direction of the inner container assembly to the direction around the inner container assembly, after the optical cable is wound around the inner container assembly, the optical cable enters the fiber winding channel from the direction around the inner container assembly, the fiber winding channel is a channel after the optical cable is wound on the surface of the inner container assembly, and therefore the fiber winding direction of the optical cable can be along the fiber winding channel. The optical cable can be wound on the inner container assembly through the steering block and the fiber running channel, so that the optical cable is stored in the single-core joint box.
For example, after the clamping groove in the inner container assembly realizes clamping and welding of the protective sleeve, the optical cable runs in the fiber direction along the axial direction of the inner container assembly, the turning block is converted into the direction perpendicular to the inner container assembly to be coiled, when the optical cable with the redundant length is coiled, the wire protection assembly ensures that the optical cable cannot overflow from the body of the inner container assembly, and therefore the purpose of coiling protection of the redundant optical cable on the outer surface of the inner container assembly is achieved.
Further, in some embodiments of the present application, as shown in fig. 4, the guiding assembly further includes: a lower guide channel 30113 in which,
and the lower guide channel is used for guiding the optical cable to enter the traveling fiber towards the oblique lower part of the axial direction of the inner container assembly after the optical cable enters the fiber traveling channel from the direction surrounding the inner container assembly.
Specifically, the fiber running channel is connected with the lower guide channel, after the optical cable is connected into the fiber running channel, the optical cable enters the lower guide channel, and the optical cable is guided by the lower guide channel to enter the running fiber to the oblique lower part of the inner container assembly in the axial direction. The optical cable is guided by the lower guide channel along the optical fiber, so that the optical cable can still be kept in the axial direction of the liner assembly after surrounding the liner assembly, and the optical cable can extend outwards through the second outer protective sleeve to complete the inventory of the optical cable in the single-core joint box.
For example, after the optical cable is coiled on the outer surface of the liner assembly, the optical cable is guided to the axial direction of the liner assembly through the lower guide channel, that is, the optical cable is guided to the cable outlet direction of the optical cable through the lower guide channel, so that the optical cable is conveniently extended out of the single-core joint box.
Further, as shown in fig. 2, the inventory mechanism further includes: a briquette 3013, wherein,
and the pressing block is used for pressing the optical cable below the pressing block after the optical cable is guided by the lower guide channel to enter the traveling fiber obliquely below the axial direction of the liner assembly, so that the optical cable enters the traveling fiber below the pressing block.
Wherein, for avoiding the not hard up of optical cable in single core joint box, the mechanism of depositing still includes the briquetting, and lower guide way guide optical cable is to the fine back of walking to the oblique below of the axial direction of inner bag subassembly, and this briquetting can be pressed the optical cable below the briquetting, realizes the firm of optical cable for the optical cable is followed the fine below walking of briquetting. The pressing block in the embodiment of the present application realizes a fixing function for the optical cable, and the specific shape and the position of the pressing block in the inventory mechanism are not limited here.
Further, in some embodiments of the present application, the bottom layer of the compact is corrugated.
Wherein, the optical cable is pressed below the briquetting, if the bottom layer face of this briquetting is the wave, then can increase the frictional force of bottom layer face, realizes the briquetting to the fixed function of optical cable, and it is not restricted that, the bottom layer face of briquetting can also be other shapes, for example the bottom layer face sets up a plurality of granules to the fixed function of reinforcing to the optical cable, again like setting up the resistance area on the bottom layer face, with the fixed function of reinforcing to the optical cable, do not limit here.
For example, the lower guide channel enables the optical cable to smoothly move to the positioning point, the stripping point of the optical cable realizes the optical cable stop at the positioning point, and the optical cable is fixed through the pressing block, so that the optical cable is prevented from moving left and right. As shown in fig. 5, for a schematic perspective structure of the liner assembly provided in the embodiment of the present application, as shown in fig. 6, for a schematic cross-sectional view of the liner assembly provided in the embodiment of the present application, for example, the pressing block may adopt an inclined T-shaped groove structure, and by pressing down the pressing block, the optical cable is pulled more and more tightly, so that the optical cable is fixed in the single-core splice closure, and the optical cable is prevented from loosening in the single-core splice closure.
In some embodiments of the present application, as shown in fig. 4, a schematic perspective view of a liner assembly provided in the embodiments of the present application, a first inventory mechanism 301a and a second inventory mechanism 301b are disposed on the liner assembly and are point-symmetric with respect to a center of a card slot,
the first optical cable entering the first cavity is wound on the liner assembly through the first coiling mechanism, a welding point formed after the tail end of the first optical cable and the front end of the second optical cable are welded is arranged in the welding protection sleeve, and the second optical cable entering the second cavity is wound on the liner assembly through the second coiling mechanism.
When the first optical cable and the second optical cable have redundant lengths, the first optical cable and the second optical cable need to be stocked, and then a first stocking mechanism and a second stocking mechanism which are symmetrical about a central point of the clamping groove are arranged on the liner assembly, for example, the first stocking mechanism and the second stocking mechanism are symmetrical left and right on the outer surface of the liner assembly, and the first optical cable and the second optical cable are surrounded on the liner assembly through the respective corresponding stocking mechanisms. If first optical cable and second optical cable need carry out the fusion fibre, the butt fusion point that forms after the butt fusion of the end of first optical cable and the front end of second optical cable sets up in the butt fusion protective case promptly, this butt fusion protective case holding is in aforementioned draw-in groove, and the first optical cable that gets into first cavity encircles on the inner bag subassembly through first inventory mechanism, and the butt fusion protective case of connecting first optical cable and second optical cable is in the draw-in groove card of joint on the inner bag subassembly, and the second optical cable that gets into the second cavity encircles on the inner bag subassembly through second inventory mechanism. The first inventory mechanism and the second inventory mechanism can be used for simultaneously inventory two optical cables on the liner assembly, so that the optical cables with larger redundant length can be inventoried.
It should be noted that the respective constituent structures of the first inventory mechanism and the second inventory mechanism may refer to the description of the inventory mechanism in the foregoing embodiments, and are not described herein again. In addition, the first optical cable and the second optical cable may be stored in a symmetrical manner, and the optical cables are wound around the cylindrical body, so as to implement storage of redundant optical fibers, conversion of routing directions, fixation of the optical cables, and the like, for details, see the description of the storage mechanism in the foregoing embodiments.
In some embodiments of the present application, as shown in fig. 2, the first outer protective sheath, the second outer protective sheath, and the liner assembly are all cylindrical structures;
the axial direction of the first outer protective sleeve, the axial direction of the second outer protective sleeve, the axial direction of the liner assembly, the vertical direction of the circle center of the optical cable around the liner assembly and the axial direction of the fusion welding protective sleeve are mutually overlapped together.
Wherein, in order to realize that the optical cable does not distort in single core joint box and coil up the stock, single core joint box overall structure can adopt circular structure, shown in fig. 2, first outer protective sheath, second outer protective sheath and inner bag subassembly all are the cylinder structure, the axial direction of first outer protective sheath, the axial direction of second outer protective sheath, the axial direction of inner bag subassembly, encircle centre of a circle vertical direction, the axial direction of butt fusion protective case of the optical cable behind the inner bag subassembly, these four directions coincide each other and be in the same place. For example, the complete coincidence of four centers can be realized by the axis of the liner assembly, the circle center of the stocked redundant optical fiber, the axial directions of the two outer protective sleeves and the center of the fusion-spliced in-and-out optical cable, so that the storage of the redundant optical cable and the rotation of the outer protective sleeves are realized in the axial direction by the structure of the liner assembly of the single-core joint box, and the stockpiling of the optical cable without distortion in the single-core joint box is ensured.
Further, in some embodiments of the present application, as shown in fig. 7, a structural diagram of a symmetric arrangement of the inventory mechanism provided in the embodiments of the present application is shown. The inner container assembly is provided with a third inventory mechanism 301c and a fourth inventory mechanism 301d which are axisymmetric or centrosymmetric with respect to a center point of the inner container assembly.
Specifically, first outer protective sheath, second outer protective sheath and inner bag subassembly all are the cylinder structure, in order to realize the inventory of optical cable on the inner bag subassembly, can also set up a plurality of inventory mechanisms that are symmetric distribution about the central point of inner bag subassembly, for example be provided with on the inner bag subassembly about the central point of inner bag subassembly be axisymmetric or centrosymmetric third inventory mechanism and fourth inventory mechanism, third inventory mechanism and fourth inventory mechanism all set up on the surface of inner bag subassembly promptly, when the optical cable needs the inventory, this optical cable carries out the encirclement of many rings on the surface of inner bag subassembly through third inventory mechanism and fourth inventory mechanism, thereby can make the more firm encirclement of optical cable on the surface of inner bag subassembly.
As shown in fig. 7, the dashed straight line represents an axis where a central point of the liner assembly is located, and the third inventory mechanism and the fourth inventory mechanism may be axisymmetric with respect to the central point of the liner assembly, but not limited thereto, the third inventory mechanism and the fourth inventory mechanism may also be centrosymmetric with respect to the central point of the liner assembly, and not limited herein. The center point of the bladder assembly may be a midpoint on a central axis of the bladder assembly.
The optical cable can be sequentially passed through the four inventory mechanisms and then stably coiled on the outer surface of the inner container assembly, so that the optical cable can be more firmly coiled on the outer surface of the inner container assembly.
In some embodiments of the present application, as shown in fig. 8, a schematic cross-sectional view of a liner assembly provided in embodiments of the present application, the single-core connector box further includes: the rubber gasket 50 is formed of, among other things,
the first outer protective sleeve and the second outer protective sleeve are connected through threads, and the rubber gasket is located between the first outer protective sleeve and the second outer protective sleeve and is extruded and deformed.
Wherein, the appearance of two outer protective sheaths in the single core splice box is cylindrical, and two outer protective sheaths pass through threaded connection, and the rubber packing ring is in between first outer protective sheath and the second outer protective sheath, and when two outer protective sheaths were screwed, the rubber packing ring was extruded deformation to the rubber packing ring realizes the waterproof sealing of the kneck of single core splice box.
In some embodiments of the present application, as shown in fig. 8, the single core closure further comprises: a first rubber plug 60 and a second rubber plug 70, wherein,
the first rubber plug is of a hollow structure, and the optical cable extends out of the first rubber plug and then enters the first cavity;
the second rubber plug is of a hollow structure, and the optical cable extends out of the second rubber plug after surrounding the inner container assembly;
the first rubber plug is arranged in the first cavity and at an inlet of the first outer protective sleeve, and the first rubber plug is attached to the outer surface of the inner container assembly;
the second rubber plug is arranged in the second cavity and at the outlet of the second outer protective sleeve, and the second rubber plug is attached to the outer surface of the inner container assembly.
Wherein, single core splice box all sets up a rubber end cap including two outer protective sheath in the cavity of every outer protective sheath, and every rubber end cap all is hollow structure to the optical cable can run through from the rubber end cap, so that the optical cable continues to coil on the inner bag subassembly and deposits. According to the single-core joint box, the optical cable can be coiled and stored without distortion, and according to the explanation on the rubber gasket, the first rubber plug and the second rubber plug, the practical measurement shows that the single-core joint box can not only realize the coiling and storing without distortion of the optical cable, but also realize the IP 68-level protection of a joint box product.
Specifically, first rubber end cap sets up in first cavity, and be in the entrance of first outer protective sheath, first rubber end cap is attached to on the surface of inner bag subassembly, thereby first rubber end cap can set up between inner bag subassembly and first cavity, and is similar, second rubber end cap sets up in the second cavity, and be in the exit of second outer protective sheath, second rubber end cap is attached to on the surface of inner bag subassembly, thereby second rubber end cap can set up between inner bag subassembly and the second cavity, when first outer protective sheath and second outer protective sheath are connected, inner bag subassembly is held in first cavity and second cavity, first rubber end cap of rethread and second rubber end cap, can realize the IP86 level water proof protection of single core joint box.
Further, in some embodiments of the present application, the first rubber plug has a tapered structure, and a top end of the first rubber plug faces the inlet of the first outer protective sleeve;
the second rubber plug is of a conical structure, and the top end of the second rubber plug faces the outlet of the second outer protective sleeve.
Wherein, first rubber end cap and second rubber end cap all can be the toper structure, the top of first rubber end cap is towards the entry of first outer protective sheath, the end-to-end connection inner bag subassembly of first rubber end cap, the top of second rubber end cap is towards the export of second outer protective sheath, the end-to-end connection inner bag subassembly of second rubber end cap, thereby make the inner bag subassembly pass through first rubber end cap and first cavity sealing connection, the inner bag subassembly passes through second rubber end cap and second cavity sealing connection, improve the waterproof level of single core joint box.
For example, the single-core joint box is designed into two major components, namely an outer protective sleeve and a liner assembly, wherein the liner assembly comprises a liner body, a rubber plug, a pressing block and the like.
The appearance of outer protective sheath is cylindrical, and outer protective sheath passes through threaded connection about, and the waterproof sealing of kneck is realized to the rubber packing ring.
The inner container assembly comprises an inner container body, a rubber plug and a pressing block, the inner container body is cylindrical in structure and concentric with the outer protective sleeve, the rubber plug can be attached to the inner container body, and the pressing block can achieve the function of fixing the optical cable through a structure similar to a dovetail groove. In addition, the tail end of the cavity of the outer protective sleeve compresses the rubber plug in the axis direction, and the conical surface of the cavity of the outer protective sleeve compresses the rubber plug.
Outer protective sheath and inner bag subassembly form concentric cylinder structure, rotate the in-process of fastening screw thread, and inner bag subassembly forms the extrusion to the rubber end cap with outer protective sheath in the axis direction, thereby the rubber end cap passes through plastic deformation and realizes the sealing function of optical cable entry and exit department.
The single-core joint box provided by the embodiment of the application can meet the requirement of sealing the product IP68, and meanwhile, the fact that the optical cable is not twisted can be achieved. Specifically, the optical cable passes through two outer protective sheaths, the rubber plug and the inner container assembly, and the axial direction of the three components in the product design coincides with the axial direction of the optical cable so as to realize the sealing of the two outer protective sheaths. The clamping fixation, routing, inventory, fiber moving and turning of the optical cable after stripping can be realized on the outer surface of the inner container assembly, and the rubber plug is combined with the inner container assembly. Simultaneously, the rubber end cap can be the toper structure, and the distance size at the axis direction between inner bag subassembly and the outer protective sheath constantly reduces, finally forms the extrusion to the rubber end cap in the terminal direction of cavity, forms the clearance space between rubber deformation compression and the optical cable to realize passing in and out the sealed of optical cable, sealed adoption screw thread between two outer protective sheaths realizes with the rubber packing ring that can the compression. As can be known from the above description, the optical cable and the inner container assembly are integrally fastened, and the two outer protective sleeves are not connected with the optical cable, so that the sealing of the product and the actual construction process of the optical cable entering and exiting cannot be distorted.
The single-core joint box provided by the embodiment of the application can be widely applied to quick splicing of optical cables of round cables or flat cables in various outdoor scenes such as the ground, the underground and the indoor.
The single-core joint box provided by the embodiment of the application can realize the application scene of the splicing of the single-point optical cable, has the characteristics of small volume, easiness in operation and the like, is particularly suitable for a multi-optical-cable splicing scene, and can solve the problems of optical cable secondary processing and optical cable waste in an optical cable home-entering scene if CBT is combined with the single-core joint box. The single-core joint box provided by the embodiment of the application can solve the inventory problem of redundant optical fibers on the columnar body, so that the volume of the single-core joint box is greatly reduced. The single core splice box that this application embodiment provided realizes when product IP68 is sealed, realizes the business turn over optical cable and does not distort to operation has been improved to the very big degree simplification operation.
It should be noted that the above-described embodiments of the apparatus are merely schematic, where the units described as separate parts may or may not be physically separate, and the parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on multiple units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of the present embodiment.
Claims (12)
1. A single core closure, comprising: a first outer protective sleeve, a second outer protective sleeve and a liner assembly, wherein,
the first outer protective sleeve comprises a first cavity, the second outer protective sleeve comprises a second cavity, and when the first outer protective sleeve and the second outer protective sleeve are connected, the first cavity and the second cavity are used for accommodating the liner assembly;
the liner assembly is provided with a stock keeping mechanism and a clamping groove, and the optical cables entering the first cavity and the second cavity are surrounded on the liner assembly through the stock keeping mechanism;
the optical cable comprises a welding protection sleeve, and the welding protection sleeve is accommodated in the clamping groove.
2. The single core closure according to claim 1, wherein said inventory mechanism comprises: a guide component and a fiber protecting component, wherein,
the guiding assembly is used for changing the fiber moving direction of the optical cable, so that the optical cable enters the fiber protecting assembly after changing the fiber moving direction according to the guiding assembly, and the optical cable extends out of the fiber protecting assembly and then surrounds the inner container assembly;
the fiber protecting assembly is used for limiting the optical cable to be separated from the inner container assembly, so that the optical cable is surrounded on the inner container assembly.
3. The single core closure according to claim 2, wherein said guide assembly comprises: a turning block and a fiber channel, wherein,
the turning block is used for converting the optical cable from the axial direction of the inner container assembly to the direction surrounding the inner container assembly, and after the optical cable surrounds the inner container assembly, the optical cable enters the fiber running channel from the direction surrounding the inner container assembly.
4. The single core closure according to claim 3, wherein said guide assembly further comprises: a lower guide passage, wherein,
the lower guide channel is used for guiding the optical cable to enter the fiber walking channel towards the oblique lower part of the axial direction of the inner container assembly after the optical cable enters the fiber walking channel from the direction surrounding the inner container assembly.
5. The single core closure of claim 4, wherein said inventory mechanism further comprises: pressing the mixture into a block, wherein,
the pressing block is used for pressing the optical cable below the pressing block after the optical cable is guided by the lower guide channel to enter the traveling fiber towards the oblique lower side of the axial direction of the liner assembly, so that the optical cable enters the traveling fiber from the lower side of the pressing block.
6. The single core connector box of claim 5, wherein said press block has a bottom layer that is corrugated.
7. The single core connector box according to any one of claims 1 to 6, wherein a first inventory mechanism and a second inventory mechanism are provided on the inner container assembly symmetrically with respect to a center point of the card slot,
the first optical cable entering the first cavity is surrounded on the liner assembly through the first inventory mechanism, a welding point formed after the tail end of the first optical cable and the front end of the second optical cable are welded is arranged in the welding protection sleeve, and the second optical cable entering the second cavity is surrounded on the liner assembly through the second inventory mechanism.
8. The single core closure according to any of claims 1 to 6, wherein said first outer protective sheath, said second outer protective sheath and said inner container assembly are all of cylindrical configuration;
the axial direction of the first outer protective sleeve, the axial direction of the second outer protective sleeve, the axial direction of the liner assembly, the vertical direction of the circle center of the optical cable surrounding the liner assembly and the axial direction of the fusion welding protective sleeve are mutually overlapped together.
9. The single core connector box according to claim 8, wherein a third inventory mechanism and a fourth inventory mechanism are provided on the liner assembly, which are axisymmetric or centrosymmetric with respect to a center point of the liner assembly.
10. The single tip closure according to any of claims 1 to 6, further comprising: a rubber grommet, wherein,
the first outer protective sleeve is connected with the second outer protective sleeve through threads, and the rubber gasket is located between the first outer protective sleeve and the second outer protective sleeve and is extruded and deformed.
11. The single tip closure according to any of claims 1 to 6, further comprising: a first rubber plug and a second rubber plug, wherein,
the first rubber plug is of a hollow structure, and the optical cable extends out of the first rubber plug and then enters the first cavity;
the second rubber plug is of a hollow structure, and the optical cable extends out of the second rubber plug after being surrounded on the inner container assembly;
the first rubber plug is arranged in the first cavity and at an inlet of the first outer protective sleeve, and the first rubber plug is attached to the outer surface of the liner assembly;
the second rubber plug is arranged in the second cavity and at an outlet of the second outer protective sleeve, and the second rubber plug is attached to the outer surface of the inner container assembly.
12. The single core connector box according to claim 11, wherein said first rubber stopper has a tapered configuration with a top end facing an entrance of said first outer protective sheath;
the second rubber plug is of a conical structure, and the top end of the second rubber plug faces the outlet of the second outer protective sleeve.
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| CN201910940225.8A CN110794531B (en) | 2019-09-30 | 2019-09-30 | Single-core joint box |
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| CN201910940225.8A CN110794531B (en) | 2019-09-30 | 2019-09-30 | Single-core joint box |
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| CN110794531B (en) | 2021-03-30 |
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