Central beam tube type OPGW optical cable
By designing casing, filling layer, insulation layer and tightening mechanism in OPGW optical cable, the problem of difficult to tighten the aluminum-clad steel pipe at the end of the optical cable is solved, and the rapid tightening and efficient insulation performance of the optical cable is achieved to ensure the normal operation of the optical cable is ensured. and waterproof performance.
Patent Information
- Application Number
- CN202420337230.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-02-23
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-02-23
AI Technical Summary
After the existing OPGW optical cable is stripped and wired, it is difficult to tighten the aluminum-clad steel pipe at the end of the optical cable again, resulting in the aluminum-clad steel pipe at the connection of the optical cable, affecting the normal operation of the optical cable.
A central bundled tube type OPGW optical cable is designed, using a casing, a filling layer, an inner insulating layer, an outer insulating layer, an aluminum-clad steel pipe, a tightening ring and a screw. Through the cooperation of the screw and the screw sleeve, the up-closing is driven. The tightening block moves, so that the upper tightening ring moves downward, to achieve tightening and relaxation of the aluminum-clad steel pipe, and ensure the tightening of the aluminum-clad steel pipe at the end of the optical cable.
It is possible to quickly tighten the aluminum-clad steel pipe after optical cable wiring to ensure the normal operation of the optical cable, and improve insulation, fire resistance and waterproofing performance through the inner and outer insulation layer, flame retardant layer and waterproof layer to avoid leakage and moisture infiltration.
Smart Images
Figure CN222259654U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a central bundle tube type OPGW optical cable, in particular to a central bundle tube type OPGW optical cable, belonging to the technical field of OPGW optical cables. Background Art
[0002] OPGW optical cable, also known as optical fiber composite overhead ground wire, places optical fiber in the ground wire of overhead high-voltage transmission line to form a fiber-optic communication network on the transmission line. This structural form has the dual functions of ground wire and communication, and is generally called OPGW optical cable. OPGW optical cable is mainly used on 500kv, 220kv, and 110kv voltage level lines. Affected by line power outages, safety and other factors, it is mostly used on newly built lines.
[0003] Among them, the "OPGW optical cable with heat conduction function" disclosed in the application number "CN201922347483.3" is also an increasingly mature technology, including a body, optical fiber and an outer aluminum-clad steel wire, a central aluminum bundle tube is arranged at the middle position inside the body, loose tubes are evenly arranged inside the central aluminum bundle tube outside the central reinforcement, and optical fibers are arranged inside the loose tubes, a buffer layer is arranged in an annular manner inside the body outside the central aluminum bundle tube, and a waterproof layer is arranged in an annular manner inside the body outside the buffer layer, a reflective layer is arranged in an annular manner inside the body outside the waterproof layer, and an outer aluminum-clad steel wire is hinged in an annular manner inside the body outside the guide groove. The utility model provides a groove and an insulated heating wire inside the central reinforcement, and uses the insulated heating wire to melt the snow or ice on the surface of the body, so as to prevent the body from bearing too much pressure, or even causing the body to break, thereby interrupting power and communication, causing great inconvenience and economic losses. After further searching, the "aluminum-clad PTB cable core type OPGW optical cable" disclosed in the application number "CN201921308259.7" includes an external stranded wire layer and an internal cable core layer, the stranded wire layer is wound around the cable core layer to provide protection, the cable core layer includes a central reinforcement from inside to outside, an optical fiber layer and a first aluminum structure layer; the optical fiber layer includes a plurality of loose tubes spirally wound around the central reinforcement to form a layered structure, and a plurality of optical fibers are arranged inside the loose tube; the first aluminum structure layer is also wrapped with a plurality of aluminum-clad steel pipes outside. The utility model has the characteristics of high reliability, superior mechanical properties, and low cost, and is particularly suitable and economical when laying new or replacing existing ground wires.
[0004] However, the above method still has the following defects in actual use: after stripping the optical cable for wiring, it is difficult to re-tighten the aluminum-clad steel tube at the end of the optical cable. Therefore, the utility model provides a central bundle tube type OPGW optical cable. Utility Model Content
[0005] The utility model aims to provide a central bundle tube type OPGW optical cable to solve the problem in the above background technology that it is difficult to re-tighten the aluminum-clad steel tube at the end of the optical cable.
[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a central bundle tube type OPGW optical cable, comprising a component mechanism and a tightening mechanism; the component mechanism comprises a casing, a filling layer is provided inside the casing, a reinforcing core is provided in the middle of the filling layer, a cable core is inserted inside the filling layer, an inner insulating layer is provided on the inner wall of the casing, an outer insulating layer is provided on the outer wall of the casing, and an aluminum-clad steel tube is wound around the outside of the casing; the tightening mechanism comprises an upper tightening ring and a lower tightening ring, the upper tightening ring is sleeved on the top of the casing, the lower tightening ring is sleeved on the bottom of the casing, the upper tightening ring and the lower tightening ring are both located on the outside of the aluminum-clad steel tube, the tops of both sides of the lower tightening ring are connected with lower tightening blocks, the bottoms of both sides of the upper tightening ring are provided with upper tightening blocks, the middle part of the lower tightening block is connected with a screw sleeve, the screw sleeve penetrates the lower tightening block, the inner thread of the screw sleeve is connected with a screw rod, and the top of the screw rod is rotatably connected with the middle part of the upper tightening block through a bearing.
[0007] As a preferred technical solution of the utility model, a flame retardant layer is provided on the outer side of the outer insulating layer.
[0008] As a preferred technical solution of the utility model, a waterproof layer is provided on the outer side of the flame retardant layer.
[0009] As a preferred technical solution of the utility model, the bottom end of the screw is connected with a rotating disk.
[0010] As a preferred technical solution of the present invention, the top end of the screw rod passes through the upper tightening block and is connected to a first limit plate, the bottom end of the first limit plate is in contact with the top end of the upper tightening block, and the top of the screw rod is connected to a second limit plate, the top end of the second limit plate is in contact with the bottom end of the upper tightening block.
[0011] As a preferred technical solution of the utility model, through holes are opened on both sides of the top of the upper tightening block, the inner part of the through hole is slidably connected to a limit rod, the bottom end of the limit rod is connected to the top of the lower tightening block, and the top of the limit rod is connected to an anti-drop block.
[0012] As a preferred technical solution of the utility model, the inner side of the upper tightening ring and the inner side of the lower tightening ring are both connected with rubber pads.
[0013] Compared with the related art, the central bundle tube OPGW optical cable provided by the utility model has the following beneficial effects:
[0014] 1. The upper tightening block is driven to move through the cooperation of the screw rod and the screw sleeve, and the upper tightening ring is moved to the lower tightening ring through the cooperation of the upper tightening block and the lower tightening block, until the aluminum-clad steel tube outside the casing is tightened between the upper tightening ring and the lower tightening ring. The aluminum-clad steel tube is conveniently tightened or loosened by rotating the screw rod forward and reversely, so that after wiring, the aluminum-clad steel tube at the end of the optical cable can be quickly tightened to make the optical cable operate normally;
[0015] 2. Through the cooperation of the inner insulation layer and the outer insulation layer, the insulation performance of the optical cable during operation is improved to avoid leakage of the optical cable. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the structure of the utility model;
[0017] Figure 2 It is a schematic diagram of the explosion structure of the tightening mechanism of the utility model;
[0018] Figure 3 For this utility model Figure 1 A schematic diagram of the enlarged structure at point A;
[0019] Figure 4 For this utility model Figure 2 Schematic diagram of the enlarged structure at B.
[0020] In the figure: 1. component mechanism; 2. tightening mechanism; 101. casing; 102. filling layer; 103. reinforcing core; 104. cable core; 105. inner insulation layer; 106. outer insulation layer; 107. aluminum-clad steel pipe; 108. flame retardant layer; 109. waterproof layer; 201. upper tightening ring; 202. lower tightening ring; 203. lower tightening block; 204. upper tightening block; 205. screw sleeve; 206. rubber pad; 207. screw; 208. turntable; 209. first limit plate; 210. second limit plate; 211. through hole; 212. limit rod; 213. anti-slip block. DETAILED DESCRIPTION
[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0022] Embodiment 1:
[0023] See also Figure 1-4 , the utility model provides a central bundle tube type OPGW optical cable, including a component mechanism 1 and a tightening mechanism 2;
[0024] The component mechanism 1 includes a sleeve 101, a filling layer 102 is fixedly provided inside the sleeve 101, a reinforcing core 103 is fixedly provided in the middle of the filling layer 102, a cable core 104 is inserted inside the filling layer 102, a plurality of cable cores 104 are provided, and the cable cores 104 are equidistantly provided inside the filling layer 102, an inner insulating layer 105 is fixedly provided on the inner wall of the sleeve 101, an outer insulating layer 106 is fixedly provided on the outer wall of the sleeve 101, and an aluminum-clad steel tube 107 is wound around the outside of the sleeve 101, and a plurality of aluminum-clad steel tubes 107 are provided, which are wound around the outside of the sleeve 101;
[0025] A flame retardant layer 108 is fixedly disposed on the outer side of the outer insulating layer 106, and the flame retardant layer 108 improves the fire resistance of the optical cable;
[0026] A waterproof layer 109 is fixedly provided on the outer side of the flame retardant layer 108, and the waterproof layer 109 can prevent moisture from penetrating into the casing 101, and prevent moisture from penetrating into the filling layer 102 and contacting the cable core 104;
[0027] Specifically, firstly, the insulation performance of the optical cable is effectively improved by the inner insulating layer 105 and the outer insulating layer 106 to avoid leakage, the fire retardant layer 108 is used to improve the fire resistance of the optical cable, and the waterproof layer 109 can prevent moisture from penetrating into the casing 101 and prevent moisture from penetrating into the filling layer 102 and contacting the cable core 104, thereby ensuring the normal operation of the optical cable.
[0028] Embodiment 2:
[0029] The tightening mechanism 2 includes an upper tightening ring 201 and a lower tightening ring 202. The upper tightening ring 201 is sleeved on the top of the sleeve 101, and the lower tightening ring 202 is sleeved on the bottom of the sleeve 101. The upper tightening ring 201 and the lower tightening ring 202 are both located on the outside of the aluminum-clad steel tube 107. The tops of both sides of the lower tightening ring 202 are fixedly connected with lower tightening blocks 203, and the bottoms of both sides of the upper tightening ring 201 are fixedly provided with upper tightening blocks 204. The middle part of the lower tightening block 203 is fixedly connected with a screw sleeve 205, and the screw sleeve 205 penetrates the lower tightening block 203. The internal thread of the screw sleeve 205 is connected with a screw rod 207, and the top of the screw rod 207 is rotatably connected to the middle part of the upper tightening block 204 through a bearing.
[0030] The bottom end of the screw rod 207 is fixedly connected with a turntable 208, and the screw rod 207 can be easily rotated by the turntable 208, so as to facilitate the adjustment of the position of the upper tightening ring 201;
[0031] The top of the screw rod 207 passes through the upper tightening block 204 and is fixedly connected with a first limiting plate 209. The bottom end of the first limiting plate 209 is in contact with the top of the upper tightening block 204. The top of the screw rod 207 is fixedly connected with a second limiting plate 210. The top end of the second limiting plate 210 is in contact with the bottom end of the upper tightening block 204. The first limiting plate 209 and the second limiting plate 210 limit the upper tightening block 204 to prevent the screw rod 207 from separating from the upper tightening block 204, so that the upper tightening ring 201 can move smoothly.
[0032] Through holes 211 are provided on both sides of the top of the upper tightening block 204. The inside of the through hole 211 is slidably connected to a limiting rod 212. The bottom end of the limiting rod 212 is fixedly connected to the top of the lower tightening block 203. The top of the limiting rod 212 is fixedly connected to an anti-dropping block 213. The limiting rod 212 limits the moving position of the upper tightening block 204, so that the upper tightening ring 201 can move vertically stably, avoiding the upper tightening ring 201 from being skewed during the movement.
[0033] The inner side of the upper tightening ring 201 and the inner side of the lower tightening ring 202 are both fixedly connected with a rubber pad 206, and the rubber pad 206 reduces the gap between the upper tightening ring 201, the lower tightening ring 202 and the aluminum-clad steel tube 107, thereby improving the tightening effect;
[0034] Specifically, first move the upper tightening ring 201 and the lower tightening ring 202 to the end of the optical cable, and then rotate the two turntables 208 at the same time to rotate the screw 207. Under the threaded cooperation of the screw 207 and the screw sleeve 205, the upper tightening block 204 is moved toward the lower tightening block 203. The limit rod 212 limits the moving position of the upper tightening block 204, so that the upper tightening ring 201 moves downward steadily until the upper tightening ring 201 and the lower tightening ring 202 tighten the aluminum-clad steel tube 107 to prevent the aluminum-clad steel tube 107 at the end of the optical cable from loosening.
[0035] When in use, first rotate the two turntables 208 at the same time to rotate the screw rod 207. Under the threaded cooperation of the screw rod 207 and the screw sleeve 205, the upper tightening block 204 moves upward, and the limit rod 212 limits the position of the upper tightening block 204, so that the upper tightening ring 201 moves up stably, so that the aluminum clad steel tube 107 at the end of the casing 101 is out of the limit, and then the upper tightening ring 201 and the lower tightening ring 202 are moved toward the middle of the optical cable, and then the aluminum clad steel tube 107 at the end of the casing 101 is peeled off, and the optical cable is connected according to the use requirements. After the connection is completed, the upper tightening ring 201 and the lower tightening ring 202 are moved to the connection of the optical cable, and then the two turntables 208 are rotated in the opposite direction to move the upper tightening ring 201 downward until the upper tightening ring 201 and the lower tightening ring 202 tighten the aluminum clad steel tube 107 to prevent the aluminum clad steel tube 107 at the connection of the optical cable from loosening;
[0036] When the optical cable is in operation, the inner insulating layer 105 and the outer insulating layer 106 can effectively improve the insulation performance of the optical cable to avoid leakage. The flame retardant layer 108 can improve the fire resistance of the optical cable. The waterproof layer 109 can prevent moisture from penetrating into the casing 101 and prevent moisture from entering the filling layer 102 and contacting the cable core 104, thereby ensuring the normal operation of the optical cable.
[0037] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A central beam tube OPGW optical cable, characterized in that: include A component structure (1); the component structure (1) comprises a sleeve (101), a filling layer (102) is provided inside the sleeve (101), a reinforcing core (103) is provided in the middle of the filling layer (102), a cable core (104) is inserted inside the filling layer (102), an inner insulating layer (105) is provided on the inner wall of the sleeve (101), an outer insulating layer (106) is provided on the outer wall of the sleeve (101), and an aluminum-clad steel pipe (107) is wound around the outside of the sleeve (101); The tightening mechanism (2) comprises an upper tightening ring (201) and a lower tightening ring (202), wherein the upper tightening ring (201) is sleeved on the top of the sleeve (101), and the lower tightening ring (202) is sleeved on the bottom of the sleeve (101), and the upper tightening ring (201) and the lower tightening ring (202) are both located on the outside of the aluminum-clad steel tube (107), and the tops of both sides of the lower tightening ring (202) are A lower tightening block (203) is connected, and upper tightening blocks (204) are provided at the bottom of both sides of the upper tightening ring (201). A screw sleeve (205) is connected to the middle of the lower tightening block (203), and the screw sleeve (205) passes through the lower tightening block (203). The internal thread of the screw sleeve (205) is connected to a screw rod (207), and the top of the screw rod (207) is rotatably connected to the middle of the upper tightening block (204) through a bearing.
2. The central beam tube OPGW optical cable according to claim 1, characterized in that: A flame retardant layer (108) is provided on the outer side of the outer insulating layer (106).
3. The central beam tube OPGW optical cable according to claim 2, characterized in that: A waterproof layer (109) is provided on the outer side of the flame retardant layer (108).
4. The central beam tube OPGW optical cable according to claim 1, characterized in that: The bottom end of the screw rod (207) is connected to a rotating disk (208).
5. The central beam tube OPGW optical cable according to claim 1, characterized in that: The top end of the screw rod (207) passes through the upper tightening block (204) and is connected to a first limiting plate (209), the bottom end of the first limiting plate (209) is in contact with the top end of the upper tightening block (204), and the top of the screw rod (207) is connected to a second limiting plate (210), the top end of the second limiting plate (210) is in contact with the bottom end of the upper tightening block (204).
6. The central beam tube OPGW optical cable according to claim 1, characterized in that: Through holes (211) are provided on both sides of the top of the upper tightening block (204), the interior of the through hole (211) is slidably connected to a limit rod (212), the bottom end of the limit rod (212) is connected to the top of the lower tightening block (203), and the top of the limit rod (212) is connected to an anti-slip block (213).
7. The central beam tube OPGW optical cable according to claim 1, characterized in that: The inner side of the upper tightening ring (201) and the inner side of the lower tightening ring (202) are both connected with a rubber pad (206).