A small high-sealed anti-corrosion splicing device for OPGW distribution network

Abstract

The present application discloses a small-sized high-sealing anti-corrosion splicing device for distribution network OPGW, comprising: a shell and a fixed seat, a fixing ring is provided at the bottom of the shell, a plurality of first threaded holes are provided on the fixing ring, a screw is threadedly connected in each first threaded hole, a second threaded hole is provided on the fixing seat, the shell and the fixing seat are fixedly connected by the screw, and a sealing ring is provided between the shell and the fixing seat; a limit plate is provided at the top of the screw, a first tooth is provided on the periphery of the limit plate, a plug-in groove is provided on the outer surface of the shell, a telescopic block for matching with the limit plate is slidably connected in the plug-in groove, one side of the telescopic block is connected to the bottom of the plug-in groove through a first spring, and an arc groove is provided on the other side; a second tooth matching the first tooth is provided in the arc groove, and a plug-in hole for plugging in an optical fiber is provided on the fixing seat. The present invention effectively reduces the volume of the splicing device and greatly improves the sealing performance of the device.

Description

Technical Field

[0001] The present application relates to the technical field of distribution network OPGW, and in particular to a small-sized highly sealed anti-corrosion connection device for distribution network OPGW. Background Art

[0002] The optical fiber is placed in the ground wire of the overhead high-voltage transmission line to form a fiber-optic communication network on the transmission line. This structural form has both ground wire and communication functions and is generally called OPGW optical cable.

[0003] The optical cable splicing box, also called the optical cable junction box or barrel, is where the end of the optical cable is connected, and then connected to the optical switch through the optical fiber jumper. It prevents material aging caused by heat, cold, light, oxygen and microorganisms in nature, and has excellent mechanical strength. Its sturdy optical cable junction box shell and main structural parts can withstand harsh environmental changes, and at the same time play a flame retardant and waterproof role, so that vibration, impact, optical cable stretching, twisting, etc. are protected.

[0004] At present, the lines on the power distribution network line connection tower are complex and have many supporting accessories, which limits the space for installing the OPGW connection box on the distribution network line connection tower. The connection box used in the traditional transmission network OPGW is generally large in size and has poor sealing performance. Therefore, the present invention proposes a small high-sealing anti-corrosion connection device for the distribution network OPGW. Summary of the invention

[0005] The embodiment of the present application provides a small-sized highly sealed anti-corrosion splicing device for a distribution network OPGW, which effectively reduces the volume of the splicing device and greatly improves the sealing performance of the device.

[0006] In view of this, the present application provides a small-sized highly sealed anti-corrosion connection device for a distribution network OPGW, comprising: a housing and a fixing seat;

[0007] A fixing ring is provided at the bottom of the housing;

[0008] The upper surface of the fixing ring is uniformly provided with a plurality of first threaded holes along the circumferential direction;

[0009] A screw is threadedly connected in each of the first threaded holes;

[0010] The fixing seat is provided with second threaded holes corresponding to the first threaded holes one by one;

[0011] The outer shell and the fixing seat are fixedly connected by the screw, and a sealing ring is arranged between the outer shell and the fixing seat;

[0012] A limit plate is provided on the top of the screw;

[0013] The outer periphery of the limiting plate is provided with first teeth;

[0014] The outer surface of the shell is provided with a plug-in slot;

[0015] A telescopic block is slidably connected in the plug-in slot and is used to cooperate with the limiting plate;

[0016] One side of the telescopic block is connected to the bottom of the inserting slot via a first spring, and the other side is provided with an arc-shaped slot;

[0017] The arc groove is provided with a second tooth matching the first tooth;

[0018] The fixing seat is provided with a plug-in hole for plugging in the optical fiber.

[0019] Optionally, a first vertical ring is provided on the top of the sealing ring;

[0020] The inner surface of the first vertical ring is provided with a first rubber ring;

[0021] A second vertical ring is provided on the top of the fixing seat;

[0022] The diameter of the second vertical ring is smaller than that of the first vertical ring, and the outer surface of the second vertical ring is provided with a first ring groove matching the first rubber ring;

[0023] A second rubber ring is arranged at the bottom of the sealing ring;

[0024] A second ring groove matching the second rubber ring is correspondingly formed on the top of the fixing seat.

[0025] Optionally, a third rubber ring is provided on the top of the sealing ring;

[0026] The diameter of the first vertical ring is smaller than the diameter of the outer shell, and the third rubber ring is located between the outer side wall of the first vertical ring and the inner side wall of the outer shell.

[0027] Optionally, a plug-in pipe for communicating with the plug-in hole is fixed to the bottom of the fixing seat;

[0028] A circular plate is provided at the bottom of the fixing seat;

[0029] The circular plate is connected to the fixing seat via a second spring, and a through hole is provided on the circular plate for the plug-in tube to extend out;

[0030] The number of the through holes is equal to the number of the plug-in tubes and corresponds one to one;

[0031] A connecting rod is plugged into the side wall of the plug-in tube;

[0032] One end of the connecting rod is inserted into the plug tube and is fixedly connected with an arc-shaped extrusion plate; the other end of the connecting rod is fixed with a hemispherical end cap;

[0033] The connecting rod is slidably connected to the plug tube. When the circular plate moves toward the fixing seat, the circular plate squeezes the hemispherical end through the inner wall of the through hole, so that the arc-shaped squeezing plate moves inward to clamp the optical fiber.

[0034] Optionally, the circular plate is provided with third threaded holes corresponding one-to-one to the second threaded holes.

[0035] Optionally, the number of the arc-shaped extrusion plates is two or more;

[0036] The number of the connecting rods is equal to the number of the arc-shaped extrusion plates and corresponds one to one.

[0037] Optionally, there are multiple second springs, and the multiple second springs are evenly distributed.

[0038] Optionally, the diameter of the through hole is larger than the outer diameter of the plug tube.

[0039] Optionally, one side of the second tooth is an arcuate surface, and the other side is a flat surface.

[0040] Optionally, the limiting plate is a circular limiting plate, and the diameter of the circular limiting plate is greater than the diameter of the top of the screw.

[0041] It can be seen from the above technical scheme that the embodiments of the present application have the following advantages: the connection device is small in size and has excellent sealing performance. It arranges a sealing ring between the outer shell and the fixed seat, and fixes the outer shell and the fixed seat together through a screw. A limit plate is arranged on the top of the screw, and a first tooth is arranged on the outer periphery of the limit plate. A plug-in groove is provided on the outer surface of the outer shell, and a telescopic block for cooperating with the limit plate is slidably connected in the plug-in groove. One side of the telescopic block is connected to the bottom of the plug-in groove through a first spring, and an arc groove is provided on the other side; a second tooth matching the first tooth is provided in the arc groove. When the screw is screwed, the first tooth on the outer periphery of the limit plate will push the second tooth to shrink the telescopic block into the plug-in groove. When the screw is screwed, the first tooth on the outer periphery of the limit plate will push the second tooth to shrink the telescopic block into the plug-in groove. When the screwing is completed, under the action of the first spring, the first tooth of the limit plate will mesh with the second tooth of the telescopic block to prevent the screw from loosening, thereby greatly improving the sealing performance of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 This is a structural schematic diagram of a small-sized highly sealed anti-corrosion connection device for a distribution network OPGW in an embodiment of the present application;

[0043] Figure 2 This is a schematic diagram of the structure of the housing in the embodiment of the present application;

[0044] Figure 3 for Figure 2 A magnified view of the details of part A;

[0045] Figure 4 This is a schematic diagram of the structure of a small-sized highly sealed anti-corrosion connection device for a distribution network OPGW in an embodiment of the present application after the outer shell is removed;

[0046] Figure 5 This is a structural schematic diagram of another perspective of a small-sized highly sealed anti-corrosion connection device for a distribution network OPGW in an embodiment of the present application after removing the outer shell;

[0047] Figure 6 This is a schematic diagram of the connection structure between the fixing seat and the circular plate in the embodiment of the present application;

[0048] Figure 7 for Figure 6 A magnified view of the details of part B;

[0049] Wherein, the accompanying drawings are marked as follows:

[0050] 1-housing, 2-fixing ring, 3-sealing ring, 4-fixing seat, 5-circular plate, 6-limiting plate, 7-plug-in groove, 8-telescopic block, 9-second tooth, 10-screw, 11-first vertical ring, 12-first rubber ring, 13-second vertical ring, 14-first ring groove, 15-second ring groove, 16-second rubber ring, 17-through hole, 18-plug-in tube, 19-arc extrusion plate, 20-hemispherical end, 21-second spring, 22-plug-in hole, 23-third threaded hole, 24-third rubber ring. DETAILED DESCRIPTION

[0051] In order to enable those skilled in the art to better understand the solution of the present application, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0052] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0053] Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0054] This application provides an embodiment of a small high-sealed anti-corrosion splicing device for distribution network OPGW. For details, please refer to Figures 1 to 4 .

[0055] The small-sized high-sealing anti-corrosion splicing device for the distribution network OPGW in this embodiment comprises: an outer shell 1 and a fixing seat 4, a fixing ring 2 is arranged at the bottom of the outer shell 1, a plurality of first threaded holes are evenly opened on the upper surface of the fixing ring 2 along the circumferential direction, a screw 10 is threadedly connected in each first threaded hole, a second threaded hole corresponding to the first threaded hole is opened on the fixing seat 4, the outer shell 1 and the fixing seat 4 are fixedly connected by the screw 10, and a sealing ring 3 is arranged between the outer shell 1 and the fixing seat 4; a limiting plate 6 is arranged at the top of the screw 10, a first tooth is arranged on the outer periphery of the limiting plate 6, a plug-in groove 7 is opened on the outer surface of the outer shell 1, a telescopic block 8 for cooperating with the limiting plate 6 is slidably connected in the plug-in groove 7, one side of the telescopic block 8 is connected to the bottom of the plug-in groove 7 by a first spring, and an arc groove is opened on the other side; a second tooth 9 matching the first tooth is arranged in the arc groove, and a plug-in hole 22 for plugging in an optical fiber is opened on the fixing seat 4.

[0056] It should be noted that: the connection device is small in size and has excellent sealing performance. It arranges a sealing ring 3 between the outer shell 1 and the fixed seat 4, and fixes the outer shell 1 and the fixed seat 4 together through a screw 10. A limit plate 6 is arranged on the top of the screw 10, and a first tooth is arranged on the outer periphery of the limit plate 6. A plug-in groove 7 is provided on the outer surface of the outer shell 1, and a telescopic block 8 for cooperating with the limit plate 6 is slidably connected in the plug-in groove 7. One side of the telescopic block 8 is connected to the bottom of the plug-in groove 7 through a first spring, and an arc groove is provided on the other side; a second tooth 9 matching the first tooth is arranged in the arc groove. When the screw 10 is screwed, the first tooth on the outer periphery of the limit plate 6 will push the second tooth 9 to shrink the telescopic block 8 into the plug-in groove 7. When the screwing is completed, under the action of the first spring, the first tooth of the limit plate 6 will mesh with the second tooth 9 of the telescopic block 8 to prevent the screw 10 from loosening, thereby greatly improving the sealing performance of the device.

[0057] The above is an embodiment of a small-sized high-sealed anti-corrosion splicing device for a distribution network OPGW provided in the embodiment of the present application. The following is an embodiment of a small-sized high-sealed anti-corrosion splicing device for a distribution network OPGW provided in the embodiment of the present application. For details, please refer to Figures 1 to 7 .

[0058] The small-sized high-sealing anti-corrosion splicing device for the distribution network OPGW in this embodiment comprises: a housing 1 and a fixing seat 4, a fixing ring 2 is arranged at the bottom of the housing 1, a plurality of first threaded holes are evenly arranged on the upper surface of the fixing ring 2 along the circumferential direction, a screw 10 is threadedly connected in each first threaded hole, a second threaded hole corresponding to the first threaded hole is arranged on the fixing seat 4, the housing 1 and the fixing seat 4 are fixedly connected by the screw 10, and a sealing ring 3 is arranged between the housing 1 and the fixing seat 4; a limited screw 10 is arranged on the top of the screw 10. The limiting plate 6 has a first tooth on its periphery, and the outer surface of the housing 1 has a plug-in slot 7, in which a telescopic block 8 for cooperating with the limiting plate 6 is slidably connected, and the telescopic block 8 can move in the plug-in slot 7; one side of the telescopic block 8 is connected to the bottom of the plug-in slot 7 through a first spring, and the other side has an arc groove; a second tooth 9 matching the first tooth is provided in the arc groove, that is, the first tooth can be meshed and connected with the second tooth 9; a plug-in hole 22 for plugging in an optical fiber is provided on the fixing seat 4.

[0059] Specifically, Figure 4 and Figure 5As shown, a first vertical ring 11 is arranged on the top of the sealing ring 3, and a first rubber ring 12 is arranged on the inner surface of the first vertical ring 11. The sealing ring 3 is sleeved on the top of the fixing seat 4, and a second vertical ring 13 is arranged on the top of the fixing seat 4. The diameter of the second vertical ring 13 is smaller than the diameter of the first vertical ring 11, and a first ring groove 14 matching the first rubber ring 12 is correspondingly opened on the outer surface of the second vertical ring 13, and the first rubber ring 12 can be inserted into the first ring groove 14; a second rubber ring 16 is arranged on the bottom of the sealing ring 3, and a second ring groove 15 matching the second rubber ring 16 is correspondingly opened on the top of the fixing seat 4, and the second rubber ring 16 can be inserted into the second ring groove 15.

[0060] like Figure 4 As shown, a third rubber ring 24 is arranged on the top of the sealing ring 3, and the first vertical ring 11 can be inserted into the bottom of the shell 1, that is, the diameter of the first vertical ring 11 is smaller than the diameter of the shell 1, and the third rubber ring 24 is located between the outer wall of the first vertical ring 11 and the inner wall of the shell 1.

[0061] It should be noted that: the present splicing device greatly improves the sealing performance of the splicing device by adopting multiple seals. Specifically, the sealing ring 3 is sealed to the fixing seat 4 by respectively clamping the first rubber ring 12 and the second rubber ring 16 in the first ring groove 14 and the second ring groove 15; and the sealing ring 3 is sealed to the housing 1 by the third rubber ring 24.

[0062] like Figures 5 to 7 As shown, a plug-in tube 18 for communicating with the plug-in hole 22 is fixed at the bottom of the fixing seat 4, and a circular plate 5 is arranged at the bottom of the fixing seat 4, which is connected to the fixing seat 4 through a second spring 21, and a through hole 17 is opened on the circular plate 5 for the plug-in tube 18 to extend out; the number of through holes 17 is equal to the number of plug-in tubes 18, and they correspond one to one; a connecting rod is plugged into the side wall of the plug-in tube 18, one end of the connecting rod is inserted into the plug-in tube 18, and is fixedly connected to an arc-shaped extrusion plate 19; a hemispherical end 20 is fixed to the other end of the connecting rod, and the connecting rod is slidably connected to the plug-in tube 18, and when the circular plate 5 moves toward the fixing seat 4, the circular plate 5 squeezes the hemispherical end 20 through the inner wall of the through hole 17, so that the arc-shaped extrusion plate 19 moves inward to clamp the optical fiber.

[0063] like Figure 6 As shown, the circular plate 5 is provided with a third threaded hole 23 corresponding to the second threaded hole one by one. Specifically, the screw 10 passes through the first threaded hole, the second threaded hole and the third threaded hole 23 from top to bottom in sequence, and a nut is threadedly connected at the lower end to fix the housing 1, the sealing ring 3, the fixing seat 4 and the circular plate 5 together.

[0064] The number of the arc-shaped extrusion plates 19 may be two or more, and the number of the connecting rods is equal to the number of the arc-shaped extrusion plates 19 and corresponds one to one.

[0065] There may be a plurality of second springs 21 , and the plurality of second springs 21 are evenly distributed.

[0066] The diameter of the through hole 17 is larger than the outer diameter of the plug tube 18 .

[0067] One side of the second tooth 9 is an arcuate surface, and the other side is a plane, so that when the screw 10 is screwed, the first teeth on the outer periphery of the limiting plate 6 push the second teeth 9 to retract the telescopic block 8 into the insertion slot 7.

[0068] Specifically, the limiting plate 6 is a circular limiting plate 6 , and the diameter of the circular limiting plate 6 is greater than the diameter of the top of the screw rod 10 .

[0069] During the specific implementation, the outer shell 1, the sealing ring 3, the fixing seat 4 and the circular plate 5 are connected together by using the screw 10, the optical fiber is plugged into the plug-in tube 18, and then a nut is threadedly connected to the end of the screw 10. By continuously rotating the screw 10, the circular plate 5 is made to be close to the fixing seat 4, and the outer shell 1, the sealing ring 3, the fixing seat 4 and the circular plate 5 are fixed together. During this process, the circular plate 5 gradually moves toward the fixing seat 4, so that the through hole 17 on the circular plate 5 gradually squeezes the hemispherical end 20, forcing the connecting rod to move inward, thereby causing the arc-shaped extrusion plate 19 to clamp and fix the optical fiber, greatly improving the sealing effect. At the same time, after the fixation is completed, due to the action of the first spring, the telescopic block 8 will be close to the limit plate 6, so that the first teeth of the limit plate 6 are meshed and connected with the second teeth 9 of the telescopic block 8, thereby effectively preventing the screw 10 from loosening, and further improving the sealing performance of the device.

[0070] As described above, the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A small high-sealed anti-corrosion splicing device for distribution network OPGW, characterized in that: Including: a housing and a fixing seat; A fixing ring is provided at the bottom of the housing; The upper surface of the fixing ring is uniformly provided with a plurality of first threaded holes along the circumferential direction; A screw is threadedly connected in each of the first threaded holes; The fixing seat is provided with second threaded holes corresponding to the first threaded holes one by one; The outer shell and the fixing seat are fixedly connected by the screw, and a sealing ring is arranged between the outer shell and the fixing seat; A limit plate is provided on the top of the screw; The outer periphery of the limiting plate is provided with first teeth; The outer surface of the shell is provided with a plug-in slot; A telescopic block is slidably connected in the plug-in slot and is used to cooperate with the limiting plate; One side of the telescopic block is connected to the bottom of the inserting slot via a first spring, and the other side is provided with an arc-shaped slot; The arc groove is provided with a second tooth matching the first tooth; The fixing seat is provided with a plug-in hole for plugging in the optical fiber; When the screw is screwed, the first teeth on the outer periphery of the limit plate will push the second teeth to shrink the telescopic block into the plug-in slot. When the screwing is completed, under the action of the first spring, the first teeth of the limit plate will engage with the second teeth of the telescopic block to prevent the screw from loosening.

2. The small-sized high-sealed anti-corrosion connection device for distribution network OPGW according to claim 1 is characterized in that: A first vertical ring is arranged on the top of the sealing ring; The inner surface of the first vertical ring is provided with a first rubber ring; A second vertical ring is provided on the top of the fixing seat; The diameter of the second vertical ring is smaller than that of the first vertical ring, and the outer surface of the second vertical ring is provided with a first ring groove matching the first rubber ring; A second rubber ring is provided at the bottom of the sealing ring; A second ring groove matching the second rubber ring is correspondingly formed on the top of the fixing seat.

3. The small-sized high-sealed anti-corrosion connection device for distribution network OPGW according to claim 2 is characterized in that: A third rubber ring is arranged on the top of the sealing ring; The diameter of the first vertical ring is smaller than the diameter of the outer shell, and the third rubber ring is located between the outer side wall of the first vertical ring and the inner side wall of the outer shell.

4. The small-sized high-sealed anti-corrosion connection device for distribution network OPGW according to claim 1 is characterized in that: A plug-in pipe for communicating with the plug-in hole is fixed at the bottom of the fixing seat; A circular plate is provided at the bottom of the fixing seat; The circular plate is connected to the fixing seat via a second spring, and a through hole is provided on the circular plate for the plug-in tube to extend out; The number of the through holes is equal to the number of the plug-in tubes and corresponds one to one; A connecting rod is plugged into the side wall of the plug-in tube; One end of the connecting rod is inserted into the plug tube and is fixedly connected with an arc-shaped extrusion plate; the other end of the connecting rod is fixed with a hemispherical end cap; The connecting rod is slidably connected to the plug tube. When the circular plate moves toward the fixing seat, the circular plate squeezes the hemispherical end through the inner wall of the through hole, so that the arc-shaped squeezing plate moves inward to clamp the optical fiber.

5. The small-sized high-sealed anti-corrosion connection device for distribution network OPGW according to claim 4 is characterized in that: The circular plate is provided with third threaded holes corresponding to the second threaded holes one by one.

6. The small-sized high-sealed anti-corrosion connection device for distribution network OPGW according to claim 4 is characterized in that: The number of the arc-shaped extrusion plates is two or more; The number of the connecting rods is equal to the number of the arc-shaped extrusion plates and corresponds one to one.

7. The small-sized high-sealed anti-corrosion connection device for distribution network OPGW according to claim 4 is characterized in that: There are multiple second springs, and the multiple second springs are evenly distributed.

8. The small-sized high-sealed anti-corrosion connection device for distribution network OPGW according to claim 4 is characterized in that: The diameter of the through hole is greater than the outer diameter of the plug tube.

9. The small-sized high-sealed anti-corrosion connection device for distribution network OPGW according to claim 1, characterized in that: One side of the second tooth is an arc-shaped surface, and the other side is a flat surface.

10. The small-sized high-sealed anti-corrosion connection device for distribution network OPGW according to claim 1, characterized in that: The limiting plate is a circular limiting plate, and the diameter of the circular limiting plate is greater than the diameter of the top of the screw.

Images