Modular cap-type OPGW insulated splicing device and system

Abstract

Provided in the present application are a modular cap-type OPGW insulated splicing device and system. The modular cap-type OPGW insulated splicing device comprises a base, an enclosure detachably connected to the top of the base, a fiber storage tray detachably connected to the base and located in the enclosure, assembly components detachably connected to the bottom of the base, a connection box integrally formed at the bottom of the base, and insulators detachably connected to the ends of the assembly components facing away from the base, wherein a first positioning ring protrudes from the top surface of the base, a second positioning ring protrudes downwards from the bottom of the enclosure, the first positioning ring abuts against an inner ring of the enclosure, and the second positioning ring abuts against the outer peripheral face of the base; and the assembly components each comprise a first connection end, an insulating portion and a second connection end which are connected in sequence. The modular cap-type OPGW insulated splicing system comprises a tower and a modular cap-type OPGW insulated splicing device connected to the tower.

Description

A modular cap-type OPGW insulation splicing device and system

[0001] This application claims priority to Chinese patent application No. CN202311737127.7, filed on December 15, 2023, entitled "A Modular Cap-Type OPGW Insulation Splicing Device and System." The disclosure of that prior application is incorporated herein by reference in its entirety. Technical Field

[0002] The present application belongs to the technical field of junction boxes, and specifically relates to a modular cap-type OPGW insulation junction device and system. Background Art

[0003] OPGW (Optical Fiber Composite Overhead Ground Wire) is a fiber-optic composite overhead ground wire, also known as OPGW cable. Existing OPGW cables are connected on poles and towers through splice boxes. These boxes protect the splicing of components and are essential for fiber splicing in optical cable line construction. They are also crucial equipment. The quality of these boxes directly impacts the quality and service life of the optical cable line.

[0004] Since there is no splice box dedicated to OPGW optical cable, existing OPGW installations all use splice boxes used for OPPC optical cable (Optical Fiber Composite Overhead Phase Conductor). The splice box used for OPPC optical cable is mainly divided into two parts, one is the base and the other is the outer cover. The base and the connector are an integrated structure, and a fiber storage tray is integrated into the base. The outer cover is connected to the top of the base. After the optical fiber enters the base from the connector, it is fused with the fiber storage tray inside the base. Since the outer cover and the base are detachably connected, rainwater can easily enter through the gap between the outer cover and the base, which can easily cause internal components to become damp and damaged. In addition, the connector and the base are an integrated structure, which is inconvenient to connect and is not conducive to workers' high-altitude operations on poles and towers. Technical issues

[0005] The embodiments of the present application provide a modular cap-type OPGW insulation splicing device and system, which aims to solve the problem that existing OPGW optical cables all use splicing boxes used for OPPC optical cables. The detachable connection between the base and the outer cover in the splicing box is prone to water ingress, which will cause internal components to be damaged by moisture. In addition, the integrated arrangement of the connector and the base is inconvenient for connection operation, which is not conducive to workers working on the tower. Technical Solutions

[0006] In the first aspect, an embodiment of the present application provides a modular cap-type OPGW insulation connection device, comprising a base, a cover shell detachably connected to the top of the base, a fiber storage tray detachably connected to the base and located in the cover shell, an assembly component detachably connected to the bottom of the base, a connection box integrally formed at the bottom of the base, and an insulator detachably connected to the end of the assembly component facing away from the base; a first positioning ring is protruding from the top surface of the base, and the first positioning ring is spaced apart from the inner ring of the outer circumference of the base; a second positioning ring is protruding downward from the bottom of the cover shell, and the second positioning ring is spaced apart from the outer ring of the outer circumference of the cover shell, the first positioning ring abuts the inner ring of the cover shell, and the second positioning ring abuts the outer circumference of the base; the assembly component comprises a first connection end, an insulating part and a second connection end connected in sequence, the insulating part is detachably connected to the first connection end and the second connection end respectively, and the second connection end extends into the base.

[0007] In combination with the first aspect, in a possible implementation, a bottom ring is provided at the bottom of the cover shell, and the outer periphery of the bottom ring is bent downward to form the second positioning ring; the base is also provided with a sealing ring that is sleeved on the outer periphery of the first positioning ring, and the sealing ring abuts against the bottom surface of the bottom ring. A deformation groove is provided on the sealing ring, and the cross-section of the sealing ring is polygonal.

[0008] In combination with the first aspect, in a possible implementation, a groove is formed in the base to cooperate with the sealing ring, and the cross-section of the sealing ring is a regular hexagon.

[0009] In combination with the first aspect, in a possible implementation, the assembly component also includes an insulating rod passing through the insulating part, both ends of the insulating rod extending out of the two ends of the insulating part, one end of the insulating rod is clamped with the first connecting end, and the other end is clamped with the second connecting end, a first through hole is formed inside the insulating rod for the optical fiber to pass through, and a limit plate is provided inside the first connecting end and the second connecting end, and the two end surfaces of the insulating rod are respectively abutted against the two limit plates, and a second through hole is formed on the limit plate for the optical fiber to pass through, and the aperture of the second through hole is less than or equal to the aperture of the first through hole.

[0010] In combination with the first aspect, in one possible implementation, the end face of the insulator close to the first connection end and the end face of the second connection end away from the insulating portion are both protruding with a wire portion, and a wire hole is formed in the wire portion, and the aperture of the wire hole gradually increases in the direction away from the insulator; the wire portion on the insulator extends into the first connection end, and the wire portion of the second connection end extends into the base.

[0011] In combination with the first aspect, in one possible implementation, a first flange is provided on the first connection end, a second flange is provided on the insulator, the first flange and the second flange are connected by a threaded connection, a sealing plug is provided on the outer periphery of the wire portion on the insulator, a third through hole is provided on the sealing plug for the optical fiber to pass through, the third through hole is smaller than the minimum diameter of the wire hole, the sealing plug is snap-fitted with the first connection end, and the end face is flush with the end face of the first flange facing the second flange.

[0012] In combination with the first aspect, in a possible implementation, the insulator includes a first clamping plate, a second clamping plate, and a tightening bolt connected between the first clamping plate and the second clamping plate, and semi-cylindrical arc surfaces are provided on the opposite surfaces of the first clamping plate and the second clamping plate. The first clamping plate is fixedly connected to the second flange, and a reinforcing rib is also provided between the first clamping plate and the second flange.

[0013] In combination with the first aspect, in a possible implementation, the base is provided with a threaded through hole connected to the outside world, and the second connecting end includes a mating section and a threaded section, the threaded section is mated with the threaded through hole, the outer diameter of the mating section is larger than the major diameter of the threaded section, the mating section is located outside the base, and the end face abuts against the bottom of the base.

[0014] In combination with the first aspect, in a possible implementation, a plurality of fixing platforms are provided on the base, and a threaded hole is formed on each of the fixing platforms; the modular cap-type OPGW insulation connection device also includes a connecting bracket, and the connecting bracket has a plurality of legs and a plurality of fastening bolts, and the plurality of legs correspond one-to-one to the plurality of fixing platforms, and each of the fastening bolts passes through the leg and is screwed to the threaded hole on the corresponding fixing platform, and the fiber storage tray is detachably connected to the connecting bracket.

[0015] In combination with the first aspect, in a possible implementation, the connecting bracket also includes two independent support plates, and the two support legs are fixed to the bottom of each support plate, and the two support legs are located on opposite sides of the support plate, each support plate is connected to the two fixed platforms located on the same side, and the bottoms on opposite sides of the fiber storage tray are respectively connected to the two support plates.

[0016] In combination with the first aspect, in a possible implementation, the top of each support plate is slidably fitted with a slider, the bottom of the fiber storage tray is fixed on the slider, and the bottom of each slider is provided with a downwardly extending identification rod.

[0017] In combination with the first aspect, in a possible implementation, a side surface of the connection box is recessed to form a receiving groove for placing the connector, and the connection box is further formed with multiple communication interfaces, and the center lines connecting the multiple communication interfaces are polygonal.

[0018] In combination with the first aspect, in a possible implementation, a retaining ring is provided on the inner circumferential surface of the cover shell, and the retaining ring coincides with the axial direction of the cover shell. The top surface of the retaining ring is recessed to form a plurality of mounting slots, and the plurality of mounting slots are evenly distributed around the axis of the retaining ring. Each of the mounting slots is filled with moisture-proof material, and a grille baffle is provided at the top opening of each mounting slot.

[0019] In combination with the first aspect, in a possible implementation, two adjacent installation slots are connected via a strip hole, one of the strip holes is connected to a water outlet pipe leading out to the outside, and the end of the water outlet pipe is connected to a water container.

[0020] In a second aspect, an embodiment of the present application further provides a modular cap-type OPGW insulation connection system, comprising a pole tower and the above-mentioned modular cap-type OPGW insulation connection device connected to the pole tower. Beneficial effects

[0021] Compared with the prior art, the modular cap-type OPGW insulation splicing device provided in the embodiment of the present application has a structure that, when installed, first fixes the base on the pole tower, passes the optical fiber through the insulator, the first connection end, the insulation part, and the second connection end in sequence, and the end of the optical fiber extends out of the second connection end, which is tightened by the insulator. At this time, the positional relationship between the optical fiber and the assembly component is fixed, and the second connection end is fixed on the base. The end of the optical fiber is now inside the base, and the end of the optical fiber is fused to the fiber storage disk. After assembly, the cover is installed to ensure the positions of the first positioning ring and the second positioning ring, and then the connection and fixation can be performed. The base and the assembly component, the assembly component and the insulator, and the base and the cover in the embodiment of the present application can be detachably connected to facilitate assembly operation; and the assembled base and the cover are sealed by the first positioning ring and the second positioning ring. The second positioning ring is wrapped around the outer periphery of the base, and the first positioning ring is in contact with the inner periphery of the cover, which can effectively prevent water from entering, prevent the fiber storage disk from being damaged by moisture, and extend its service life.

[0022] Compared with the prior art, the modular cap-type OPGW insulation splicing system provided in the embodiment of the present application is different from the prior art in that, when installing, the modular cap-type OPGW insulation splicing device is first assembled according to the above-mentioned assembly sequence and then fixed to the pole tower. After being fixed on the pole tower, the optical fiber on the outside can be connected to the winding equipment and bending equipment on the pole tower. The bending equipment near the base can assist the optical fiber in naturally bending the optical fiber to form an arc shape, thereby avoiding the phenomenon of breakage caused by improper bending angle of the optical fiber; and the winding equipment can wind the excess optical fiber to avoid the safety hazard caused by the random dispersion of the optical fiber. The modular cap-type OPGW insulation splicing system of the embodiment of the present application is more convenient and safe to use, and can ensure the regularity of the installation of the optical fiber and increase the service life of the optical fiber. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] FIG1 is a schematic diagram of the front view of a modular cap-type OPGW insulation connection device provided in Example 1 of the present application;

[0024] FIG2 is a schematic cross-sectional view of the structure along line AA in FIG1 ;

[0025] FIG3 is an enlarged structural diagram of part B in FIG2 ;

[0026] FIG4 is a schematic diagram of the three-dimensional structure of a modular cap-type OPGW insulation connection device provided in Example 1 of the present application (the cover is omitted);

[0027] FIG5 is a schematic cross-sectional view of the cover shell used in the second embodiment of the present application;

[0028] FIG6 is a schematic cross-sectional view of the structure along line CC in FIG5 ;

[0029] FIG7 is a schematic cross-sectional view of the sealing ring used in Example 2 of the present application;

[0030] FIG8 is a schematic diagram of the three-dimensional structure of the connecting bracket used in Example 2 of the present application.

[0031] Description of reference numerals:

[0032] 10-base; 11-first positioning ring; 12-fixed platform;

[0033] 20 - housing; 21 - second positioning ring; 22 - bottom ring; 23 - retaining ring; 24 - mounting slot; 25 - grille baffle; 26 - strip hole; 27 - water outlet pipe; 28 - water container;

[0034] 30-fiber storage tray;

[0035] 40 - assembly component; 41 - first connection end; 411 - first flange; 42 - insulating portion; 43 - second connection end; 431 - mating section; 432 - threaded section; 44 - insulating rod; 45 - stop plate; 46 - conductor portion;

[0036] 50-connection box; 51-accommodation slot; 52-communication interface;

[0037] 60-insulator; 61-second flange; 62-threaded connector; 63-sealing plug; 64-first clamping plate; 65-second clamping plate; 66-tightening bolt; 67-semi-cylindrical arc surface; 68-reinforcement rib;

[0038] 70-seal ring; 71-deformation groove;

[0039] 80-connecting bracket; 81-support plate; 82-support leg; 83-slider; 84-marking rod; 85-take-up belt; 86-fastening bolt. Modes for Carrying Out the Invention

[0040] In order to make the technical problems, technical solutions and beneficial effects to be solved by this application more clearly understood, this application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain this application and are not intended to limit this application.

[0041] Please refer to Figures 1 to 8 together, and the modular cap-type OPGW insulation splicing device provided by the present application will now be described. The modular cap-type OPGW insulation splicing device includes a base 10, a cover 20 detachably connected to the top of the base 10, a fiber storage tray 30 detachably connected to the base 10 and located in the cover 20, an assembly component 40 detachably connected to the bottom of the base 10, a connection box 50 integrally formed at the bottom of the base 10, and an insulator 60 detachably connected to the end of the assembly component 40 away from the base 10; a first positioning ring 11 is protruding from the top surface of the base 10, and the first positioning ring 11 is spaced apart and located at the inner circle of the outer peripheral surface of the base 10. Here, it can be understood that the first positioning ring 11 is located inside the outer peripheral surface of the base 10, and a second positioning ring 21 is protruding downward from the bottom of the cover 20. The two positioning rings 21 are spaced apart and located on the outer ring of the outer circumference of the cover shell 20. Here, it can be understood that the second positioning ring 21 is located outside the outer circumference of the cover shell 20. The inner diameter of the second positioning ring 21 is larger than the outer diameter of the base 10, the outer diameter of the first positioning ring 11 is smaller than the outer diameter of the base 10, and the outer diameter of the first positioning ring 11 is smaller than the inner diameter of the cover shell 20. The first positioning ring 11 abuts against the inner ring of the cover shell 20, and the second positioning ring 21 abuts against the outer circumference of the base 10; the assembly component 40 includes a first connecting end 41, an insulating part 42 and a second connecting end 43 connected in sequence, and the insulating part 42 is detachably connected to the first connecting end 41 and the second connecting end 43 respectively, and the second connecting end 43 extends into the base 10.

[0042] The modular cap-type OPGW insulation splicing device provided in the embodiment of the present application is compared with the prior art. When installing, the base 10 is first fixed on the pole tower, and the optical fiber is sequentially passed through the insulator 60, the first connecting end 41, the insulating part 42 and the second connecting end 43. The end of the optical fiber extends out of the second connecting end 43 and is tightened through the insulator 60. At this time, the positional relationship between the optical fiber and the assembly component 40 is fixed. The second connecting end 43 is fixed on the base 10, and the end of the optical fiber is now in the base 10. The end of the optical fiber is fused with the fiber storage tray 30. After assembly is completed, the cover 20 is installed to ensure the positions of the first positioning ring 11 and the second positioning ring 21, and then the connection and fixation are completed. In the embodiment of the present application, the base 10 and the assembly component 40, the assembly component 40 and the insulator 60, and the base 10 and the cover shell 20 can be detachably connected to facilitate assembly operations; and the assembled base 10 and the cover shell 20 are sealed by a first positioning ring 11 and a second positioning ring 21. The second positioning ring 21 is wrapped around the outer periphery of the base 10, and the first positioning ring 11 abuts against the inner periphery of the cover shell 20, which can effectively prevent water from entering, prevent the fiber storage disk 30 from being damaged by moisture, and extend its service life.

[0043] In some embodiments, an improved connection method between the housing 20 and the base 10 can be implemented as shown in Figures 2 to 4. Referring to Figures 2 to 4, the bottom of the housing 20 is provided with a bottom ring 22, the outer periphery of which is bent downward to form a second positioning ring 21. The base 10 is also provided with a sealing ring 70 that is sleeved around the outer periphery of the first positioning ring 11. The sealing ring 70 abuts the bottom surface of the bottom ring 22 and has a deformation groove 71 formed therein. The cross-section of the sealing ring 70 is polygonal. During the actual production process of the housing 20, the bottom flange of the housing 20 can be used to form a bottom ring 22, and the outer flange of the bottom ring 22 forms a second positioning ring 21. The bottom ring 22 can fit on the top surface of the sealing ring 70. The cross-section of the sealing ring 70 is polygonal, and one flat surface of the outer surface of the sealing ring 70 needs to be installed facing upward. This increases the contact area between the sealing ring 70 and the bottom ring 22, improving the sealing effect. The sealing ring 70 is also provided with a deformation groove 71. The base 10 and the bottom ring 22 squeeze the sealing ring 70 from the top and bottom sides, respectively, which increases the deformation of the sealing ring 70 and improves the sealing effect. It is understood that the deformation groove 71 can be a full circle or a discontinuous one or more segments.

[0044] Specifically, a recessed groove is formed on the base 10 to mate with the sealing ring 70. When the deformation groove 71 is designed as a full circle, the cross-section of the sealing ring 70 is a regular hexagon. When the deformation groove 71 is designed as a discontinuous one or more segments, the cross-section of the sealing ring 70 includes a regular hexagon and a regular hexagon in the shape of the deformation groove 71. The groove on the base 10 facilitates the securing of the sealing ring 70. When the sealing ring 70 is installed with one flat surface facing upward, the installation stability of the sealing ring 70 is ensured, and the sealing ring 70 is effectively prevented from tilting during installation of the cover 20, which could affect the sealing effect.

[0045] In some embodiments, an improved embodiment of the above-mentioned cover 20 can adopt the structure shown in Figures 5 and 6. Referring to Figures 5 and 6, a retaining ring 23 is provided on the inner circumference of the cover 20. The axial direction of the retaining ring 23 coincides with the axial direction of the cover 20. The top surface of the retaining ring 23 is recessed to form a plurality of mounting slots 24. The plurality of mounting slots 24 are evenly distributed around the axis of the retaining ring 23. Each mounting slot 24 is filled with moisture-proof material, and a grille baffle 25 is provided at the top opening of each mounting slot 24. When moisture enters the space within the base 10, since the mounting slots 24 on the retaining ring 23 are connected to the space inside the base 10 through the grille baffle 25, the moisture can be absorbed by the moisture-proof material, thereby keeping the interior of the base 10 dry and preventing the fiber storage tray 30 from being damaged by moisture.

[0046] The retaining ring 23 may be made of rubber.

[0047] Specifically, two adjacent mounting slots 24 are connected by a strip hole 26. The strip hole 26 is located inside the retaining ring 23 and cannot be observed from the outside. One of the strip holes 26 is connected to a water outlet pipe 27 (which needs to pass through the cover shell 20) leading to the outside world. The end of the water outlet pipe 27 is connected to a water container 28. The water container 28 is separated from the external environment, that is, it will not collect water from the external environment. Both the water outlet pipe 27 and the water container 28 can be made of transparent rubber material. When workers observe water appearing in the water container 28, they can judge that the space inside the base 10 is seriously damp, and thus timely repairs can be carried out; and the water container 28 can prevent the water in the water outlet pipe 27 from directly dripping and causing corrosion of the pole tower and other phenomena.

[0048] In some embodiments, an improved embodiment of the assembly component 40 can adopt the structure shown in Figure 2. Referring to Figure 2, the assembly component 40 also includes an insulating rod 44 that passes through the insulating portion 42. Both ends of the insulating rod 44 extend from the ends of the insulating portion 42. One end of the insulating rod 44 is clamped to the first connecting end 41, and the other end is clamped to the second connecting end 43. The insulating rod 44 has a first through hole formed inside for the optical fiber to pass through. The first connecting end 41 and the second connecting end 43 are each provided with a stopper plate 45. The two end surfaces of the insulating rod 44 are respectively abutted against the two stopper plates 45. The stopper plates 45 have a second through hole formed on them for the optical fiber to pass through. The aperture of the second through hole is smaller than or equal to the aperture of the first through hole. The process of connecting the optical fiber to the assembly component 40 is as follows: the optical fiber is passed through the middle of the insulating rod 44, the insulating portion 42 is sleeved on the outer periphery of the insulating rod 44, and then the first connecting end 41 and the second connecting end 43 are respectively installed at the ends of the insulating portion 42. The first connecting end 41 is connected to the insulator 60, and the second connecting end 43 is connected to the base 10.

[0049] When the optical fibers are connected, the structure of this embodiment is insulated twice by the insulating rod 44 and the insulating portion 42 , which makes it safer during assembly and use.

[0050] The insulating rod 44 can be made of molded rubber material; the optical fiber can also be passed through the first connecting end 41, the insulating part 42 and the second connecting end 43 in sequence and then glue is injected into the inside. After the glue solidifies, the insulating rod 44 is formed. The insulating rod 44 not only fixes the optical fiber, but also realizes the coordination between the insulating part 42 and the first connecting end 41, and between the insulating part 42 and the second connecting end 43. It is easy to operate and the connection is reliable.

[0051] In some embodiments, an improved embodiment of the insulator 60 and the assembly component 40 can adopt the structure shown in Figure 2. Referring to Figure 2, the end face of the insulator 60 close to the first connection end 41 and the end face of the second connection end 43 away from the insulating portion 42 are both protruding with a wire portion 46, and a wire hole is formed in the wire portion 46, and the aperture of the wire hole gradually increases in the direction away from the insulator 60; the wire portion 46 on the insulator 60 extends into the first connection end 41, and the wire portion 46 of the second connection end 43 extends into the base 10. The wire portions 46 are respectively provided on the insulator 60 and the second connection end 43, which can play a guiding role when the optical fiber is inserted and exited, wherein the wire portion 46 on the insulator 60 can ensure that the optical fiber is aligned with the hole on the first connection end 41 when it exits the insulator 60, facilitating the passage of the optical fiber and avoiding bending and clogging.

[0052] In some embodiments, a specific connection method between the first connection end 41 and the insulator 60 can be as shown in Figures 1 to 2 and 4. Referring to Figures 1 to 2 and 4, the first connection end 41 is provided with a first flange 411, and the insulator 60 is provided with a second flange 61. The first flange 411 and the second flange 61 are connected by a threaded connector 62. The outer periphery of the conductor portion 46 on the insulator 60 is provided with a sealing plug 63. The sealing plug 63 is provided with a third through hole for the optical fiber to pass through. The third through hole is smaller than the minimum diameter of the conductor hole. The sealing plug 63 is engaged with the first connection end 41, and its end face is flush with the end face of the first flange 411 facing the second flange 61. The first connection end 41 and the insulator 60 are fastened by connecting a threaded connector 62 on the first flange 411 and the second flange 61, wherein the wire portion 46 of the insulator 60 needs to extend into the first connection end 41. By sleeved a sealing plug 63 on the wire portion 46 of the insulator 60, there is no need to install other sealing structures between the first flange 411 and the second flange 61, which facilitates the connection between the first flange 411 and the second flange 61. In addition, the sealing plug 63 is directly sleeved on the wire portion 46 of the insulator 60, which makes the installation more stable and the sealing better.

[0053] A specific embodiment of the insulator 60 may adopt the structure shown in FIG. 1 to FIG. 2 and FIG. 4 . 1 to 2 and 4 , the insulator 60 includes a first clamping plate 64, a second clamping plate 65 and a tightening bolt 66 connected between the first clamping plate 64 and the second clamping plate 65. Semi-cylindrical arc surfaces 67 are provided on the opposite surfaces of the first clamping plate 64 and the second clamping plate 65. The first clamping plate 64 is fixedly connected to the second flange 61, and a reinforcing rib 68 is provided between the first clamping plate 64 and the second flange 61. The second clamping plate 65 is a separate component. When installing the optical fiber, the optical fiber is passed through the corresponding holes on the first clamping plate 64 and the second flange 61, and the optical fiber is placed in the space surrounded by the semi-cylindrical arc surfaces 67. When the second clamping plate 65 is installed, it is fixed by tightening the bolt 66. The semi-cylindrical arc surfaces 67 on the first clamping plate 64 and the second clamping plate 65 just enclose a cylindrical cavity to accommodate the optical fiber. After the tightening bolt 66 is fully tightened, the optical fiber can be clamped. At this time, the assembly component 40 can be connected to the base 10.

[0054] In some embodiments, a specific connection method between the base 10 and the second connecting end 43 can adopt the structure shown in Figure 2. Referring to Figure 2, the base 10 is provided with a threaded through hole for connecting to the outside world. The second connecting end 43 includes a mating section 431 and a threaded section 432. The threaded section 432 is mated with the threaded through hole. The outer diameter of the mating section 431 is larger than the major diameter of the threaded section 432. The mating section 431 is located outside the base 10, and the end face abuts the bottom of the base 10. The second connecting end 43 is connected to the base 10 by threads, wherein the mating section 431 of the second connecting end 43 is larger than the outer diameter of the threaded section 432. This can limit the length of the second connecting end 43 extending into the base 10, facilitate installation, and prevent the second connecting end 43 from extending too long into the base 10 and occupying the internal space. In addition, when installed, the mating section 431 abuts against the outer surface of the bottom of the base 10, which can achieve a sealing effect.

[0055] In some implementations, a specific installation method for the fiber storage tray 30 can adopt the structure shown in Figure 4. Referring to Figure 4, a plurality of fixing platforms 12 are provided on the base 10, each of which has a threaded hole formed therein. The modular cap-type OPGW insulation splicing device also includes a connecting bracket 80, which has a plurality of legs 82 and a plurality of fastening bolts 86. The plurality of legs 82 correspond one-to-one with the plurality of fixing platforms 12, and each fastening bolt 86 passes through a leg 82 and is screwed into a threaded hole on a corresponding fixing platform 12. The top surface of the fixing platform 12 within the base 10 is horizontal, which not only facilitates the tightening and adjustment of the fastening bolts 86 when securing the connecting bracket 80, but also improves the installation stability of the connecting bracket 80. The legs 82 at the bottom of the connecting bracket 80 can elevate the fiber storage tray 30 to a certain height, thereby leaving space for the second connecting end 43 to extend into the interior of the base 10, thereby improving overall coordination.

[0056] Specifically, the connecting bracket 80 includes two independent support plates 81, each of which has two legs 82 fixed to its bottom. The legs 82 are located on opposite sides of the support plate 81. Each support plate 81 is connected to two fixing platforms 12 located on the same side. After the two support plates 81 are fixed, the bottoms of the fiber storage tray 30 on opposite sides are connected to the two support plates 81 respectively. This structure is simple, easy to install, and avoids excessive space occupation within the base 10. When multiple assembly components 40 are provided, the space between the two legs 82 can also allow optical fibers extending into the base 10 to pass through and be located directly below the fiber storage tray 30, facilitating fusion splicing operations.

[0057] In some embodiments, a specific embodiment of the connecting bracket 80 can adopt the structure shown in Figure 8. Referring to Figure 8, the support plate 81 is a rectangular plate. The top of each support plate 81 is slidably engaged with a slider 83. The bottom of the fiber storage tray 30 can be fixed to the slider 83 via a threaded connector 62 or welding. The bottom of each slider 83 is provided with a downwardly extending identification rod 84. The identification rod 84 is a retractable member. The identification rod 84 is also provided with a take-up belt 85, the middle portion of which is fixed to the identification rod 84. The fiber storage tray 30 is moved by the slider 83, which makes it convenient to change the actual position of the fiber storage tray 30 in the cover shell 20 to adapt to various wiring requirements; the downward extending identification rod 84 can correspond to the optical fiber extending from the bottom, and the identification rod 84 moves with the slider 83. When it moves to the point where the bottom end of the identification rod 84 just contacts the part of the second connecting end 43 extending into the base 10, it means that the fiber storage tray 30 is just above the end where the optical fiber passes through. At this time, it is convenient to connect the optical fiber to the fiber storage tray 30, and the length of the optical fiber used can be reduced, thereby reducing costs.

[0058] It is easy to understand that a slot can be provided on the top of the support plate 81 to cooperate with the slider 83 to achieve the sliding adjustment of the slider 83; a linear module, a driving cylinder, etc. can also be provided on the top of the support plate 81 to achieve the sliding adjustment of the slider 83. In order to fix the slider 83 after sliding, multiple sockets can be provided along the length of the support plate 81. When the slider 83 slides to a specific position, rods are inserted into the two nearest sockets on opposite sides of the slider 83 to limit the further movement of the slider 83.

[0059] In some embodiments, a specific embodiment of the above-mentioned connection box 50 can adopt the structure shown in Figures 1 to 2. Referring to Figures 1 to 2, one side of the connection box 50 is recessed to form a receiving groove 51 for placing the connector, and a plurality of communication interfaces 52 are also formed on the connection box 50, and the center connection line of the plurality of communication interfaces 52 is polygonal. Some communication equipment and the like can be installed in the receiving groove 51 of the connection box 50. During installation, the corresponding line is first connected to the reserved communication interface 52, and then the communication interface 52 is extended into the line in the receiving groove 51 and plugged into the corresponding position on the communication equipment, and then the corresponding communication equipment card is plugged into the receiving groove 51. After connection, the working status of the fiber storage tray 30 can be transmitted to the outside through the communication equipment, which is convenient for workers to observe the current working status.

[0060] For example, four communication interfaces 52 may be provided, with two horizontal interfaces being used for communication and two vertical interfaces being used for power supply. The connection lines of the four communication interfaces 52 are exactly in the shape of a square.

[0061] Based on the same inventive concept, an embodiment of the present application further provides a modular cap-type OPGW insulation connection system, comprising a pole tower and the above-mentioned modular cap-type OPGW insulation connection device connected to the pole tower.

[0062] The modular cap-type OPGW insulation splicing system provided in the embodiment of the present application is different from the prior art in that, when installing the modular cap-type OPGW insulation splicing device, it is first assembled according to the above-mentioned assembly sequence and then fixed to the pole tower. After being fixed to the pole tower, the optical fiber located outside can be connected to the winding equipment and bending equipment on the pole tower. The bending equipment near the base 10 can assist the optical fiber in naturally bending and making the optical fiber arc-shaped, thereby avoiding the phenomenon of breakage caused by improper bending angle of the optical fiber. In addition, the winding equipment can wind the excess optical fiber to avoid the safety hazard caused by the random dispersion of the optical fiber. The modular cap-type OPGW insulation splicing system provided in the embodiment of the present application is more convenient and safe to use, and can ensure the installation regularity of the optical fiber and increase the service life of the optical fiber.

[0063] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A modular cap-type OPGW insulation connection device, characterized in that: The invention comprises a base, a cover shell detachably connected to the top of the base, a fiber storage plate detachably connected to the base and located in the cover shell, an assembly component detachably connected to the bottom of the base, a connection box integrally formed at the bottom of the base, and an insulator detachably connected to the end of the assembly component away from the base; a first positioning ring is protruding from the top surface of the base, and the first positioning ring is spaced apart from the inner circle of the outer peripheral surface of the base; a second positioning ring is protruding downward from the bottom of the cover shell, and the second positioning ring is spaced apart from the outer circle of the outer peripheral surface of the cover shell, the first positioning ring abuts against the inner circle of the cover shell, and the second positioning ring abuts against the outer peripheral surface of the base; the assembly component comprises a first connecting end, an insulating part and a second connecting end connected in sequence, the insulating part is detachably connected to the first connecting end and the second connecting end respectively, and the second connecting end extends into the base.

2. The modular cap-type OPGW insulation connection device according to claim 1, characterized in that: A bottom ring is provided at the bottom of the cover shell, and the outer circumference of the bottom ring is bent downward to form the second positioning ring; a sealing ring is also provided on the base and is sleeved on the outer circumference of the first positioning ring. The sealing ring abuts against the bottom surface of the bottom ring, a deformation groove is opened on the sealing ring, and the cross-section of the sealing ring is a polygon.

3. The modular cap-type OPGW insulation connection device according to claim 2, characterized in that: The base is recessed to form a groove matched with the sealing ring, and the cross section of the sealing ring is a regular hexagon.

4. The modular cap-type OPGW insulation connection device according to claim 1, characterized in that: The assembly component also includes an insulating rod passing through the insulating part, both ends of the insulating rod extending out of the two ends of the insulating part, one end of the insulating rod is clamped with the first connecting end, and the other end is clamped with the second connecting end, a first through hole for the optical fiber to pass through is formed inside the insulating rod, and limiting plates are provided inside the first connecting end and the second connecting end, and the two end surfaces of the insulating rod are respectively abutted against the two limiting plates, and a second through hole for the optical fiber to pass through is formed on the limiting plate, and the aperture of the second through hole is less than or equal to the aperture of the first through hole.

5. The modular cap-type OPGW insulation connection device according to claim 1, characterized in that: The end surface of the insulator close to the first connection end and the end surface of the second connection end away from the insulating portion are both protruding with a wire portion, and a wire hole is formed in the wire portion, and the aperture of the wire hole gradually increases in the direction away from the insulator; the wire portion on the insulator extends into the first connection end, and the wire portion of the second connection end extends into the base.

6. The modular cap-type OPGW insulation connection device according to claim 5, characterized in that: A first flange is provided on the first connection end, and a second flange is provided on the insulator. The first flange and the second flange are connected by a threaded connector. A sealing plug is provided on the outer periphery of the wire portion on the insulator. A third through hole is provided on the sealing plug for the optical fiber to pass through. The third through hole is smaller than the minimum diameter of the wire hole. The sealing plug is snap-fitted with the first connection end, and the end face is flush with the end face of the first flange facing the second flange.

7. The modular OPGW insulation connection device according to claim 6, characterized in that: The insulator includes a first clamping plate, a second clamping plate and a tightening bolt connected between the first clamping plate and the second clamping plate. The first clamping plate and the second clamping plate are provided with semi-cylindrical arc surfaces on the opposite surfaces. The first clamping plate is fixedly connected to the second flange, and a reinforcing rib is also provided between the first clamping plate and the second flange.

8. The modular cap-type OPGW insulation connection device according to claim 1, characterized in that: The base is provided with a threaded through hole connected to the outside world, and the second connecting end includes a matching section and a threaded section. The threaded section matches with the threaded through hole, and the outer diameter of the matching section is larger than the major diameter of the threaded section. The matching section is located outside the base, and the end face abuts against the bottom of the base.

9. The modular cap-type OPGW insulation connection device according to claim 1, characterized in that: The base is provided with a plurality of fixing platforms, each of which is formed with a threaded hole; the modular cap-type OPGW insulating connection device also includes a connecting bracket, the connecting bracket has a plurality of legs and a plurality of fastening bolts, the plurality of legs correspond one-to-one to the plurality of fixing platforms, each of the fastening bolts passes through the leg and is screwed to the corresponding threaded hole on the fixing platform, and the fiber storage tray is detachably connected to the connecting bracket.

10. The modular cap-type OPGW insulation connection device according to claim 9, characterized in that: The connecting bracket also includes two independent supporting plates, each of which has two supporting legs fixed to the bottom, and the two supporting legs are located on opposite sides of the supporting plate, each of which is connected to the two fixed platforms located on the same side, and the bottoms of the opposite sides of the fiber storage tray are respectively connected to the two supporting plates.

11. The modular cap-type OPGW insulation connection device according to claim 10, characterized in that: The top of each supporting plate is slidably matched with a slider, the bottom of the fiber storage tray is fixed on the slider, and the bottom of each slider is provided with a marking rod extending downward.

12. The modular cap-type OPGW insulation connection device according to claim 1, characterized in that: A side surface of the connection box is recessed to form a receiving groove for placing the connector. A plurality of communication interfaces are also formed on the connection box, and the center connecting line of the plurality of communication interfaces is a polygon.

13. The modular cap-type OPGW insulation connection device according to claim 1, characterized in that: A retaining ring is provided on the inner circumference of the cover shell, and a plurality of mounting grooves are formed in a recessed manner on the top surface of the retaining ring. The plurality of mounting grooves are evenly distributed around the axis of the retaining ring, each mounting groove is filled with moisture-proof material, and a grille baffle is provided at the top opening of each mounting groove.

14. The modular OPGW insulation connection device according to claim 13, characterized in that: Two adjacent installation slots are connected via a strip hole, one of the strip holes is connected to a water outlet pipe leading out to the outside, and the end of the water outlet pipe is connected to a water container.

15. A modular cap-type OPGW insulation connection system, characterized in that: The invention comprises a pole tower and a modular cap-type OPGW insulation connection device according to any one of claims 1 to 14 connected to the pole tower.

Images