CN211263889U - Overhead optical cable and optical cable laying hardware fitting - Google Patents
Overhead optical cable and optical cable laying hardware fitting Download PDFInfo
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- CN211263889U CN211263889U CN201922484778.5U CN201922484778U CN211263889U CN 211263889 U CN211263889 U CN 211263889U CN 201922484778 U CN201922484778 U CN 201922484778U CN 211263889 U CN211263889 U CN 211263889U
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Abstract
The utility model belongs to the cable field especially relates to an aerial optical cable and this optical cable lay gold utensil, and wherein, this aerial optical cable lays the gold utensil, has rings, gold utensil support, the gold utensil support is "U" shape, and rings are located the top of gold utensil support, and its characterized in that two end insides of gold utensil support form a spacing part appearance chamber respectively, and spacing part appearance chamber lower extreme forms couple king rod appearance chamber, two end belows of gold utensil support are equipped with a couple respectively, and the couple comprises spacing part, couple king rod that is located spacing part below, couple hook body that is located couple king rod below and couple extension part that is located couple hook body both sides respectively, and spacing part is located spacing part appearance chamber, and can rotate in spacing part appearance chamber, and couple king rod upper end is located couple king rod appearance chamber; the hardware fitting has the advantages of simple structure, convenient use, light weight, no separation of parts, long service life, good fixing effect and the like; the utility model also discloses an aerial optical cable.
Description
Technical Field
The utility model belongs to the cable field especially relates to an overhead optical cable and this optical cable lay gold utensil.
Background
With the continuous promotion of domestic communication network construction, the demand of aerial optical cables is greater and greater, and the optical cables laid in a long-distance aerial mode need to use hardware fittings in the laying process.
In the prior art, a fixture for a head part of a CN209657916U rod-shaped pin type poly-crystal silicon insulator comprises an upper fixture and a lower fixture; the upper clamp comprises a pressing plate and two cylindrical connecting rods fixed on the bottom surface of the pressing plate, limiting blocks are arranged at the lower ends of the rods of the connecting rods, and the pressing plate, the connecting rods and the limiting blocks are integrally formed and made of a poly-crystalline silicon material. The lower clamp is a hardware fitting gasket connected with the upper end of the rod-shaped pin insulator, and through holes are formed in two ends of the hardware fitting gasket; through inserting the connecting rod and making anchor clamps and lower anchor clamps cooperation setting in the through-hole that corresponds, the stopper is located and stretches out the through-hole, and the wire card is located between anchor clamps and the lower anchor clamps.
The above prior art has the following disadvantages: 1. the clamp is composed of an upper clamp and a lower clamp, the upper clamp and the lower clamp are required to be matched with each other during installation, one or more clamps are easy to be missed when a plurality of sets of clamps are carried, and partial clamps are not complete; 2. the installation makes anchor clamps and lower anchor clamps cooperation setting in inserting the through-hole that corresponds with the connecting rod, and the stopper is located and stretches out the through-hole, and it is difficult to take off after the installation is accomplished, brings inconvenience for maintaining.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, the present invention discloses an overhead cable and a fitting for laying the same, which is implemented by the following technical solutions.
An overhead optical cable laying hardware fitting is provided with a lifting ring and a hardware fitting support, wherein the hardware fitting support is U-shaped, a third reinforcing part is arranged at the bending part of the hardware fitting support, the lifting ring is positioned above the hardware fitting support, the overhead optical cable laying hardware fitting is characterized in that a limiting part containing cavity is respectively formed inside two ends of the hardware fitting support, a hook main rod containing cavity is formed at the lower end of the limiting part containing cavity, a hook is respectively arranged below the two ends of the hardware fitting support, the hook is composed of a limiting part, a hook main rod, two hook extending parts and a hook body, the limiting part is positioned at the upper end of the hook main rod, the hook body is positioned at the lower end of the hook main rod, the two hook extending parts are respectively positioned at two sides of the hook body, the limiting part is positioned in the limiting part containing cavity and can rotate in the limiting, the upper end of the hook main rod is positioned in the hook main rod containing cavity, the lower end of the hook main rod extends out of the hook main rod containing cavity, and the hook extending component has elasticity.
The overhead optical cable laying hardware fitting is characterized in that the limiting component, the hook main rod and the hook body are integrally formed.
The overhead optical cable laying hardware fitting is characterized in that the two hook extending parts and the hook body of the hook are arc-shaped.
The overhead optical cable laying hardware fitting is characterized in that the hook main rod is also provided with threads and a nut matched with the threads; because the hook body is arranged below the nut, the nut cannot fall off due to the vibration of the optical cable and the self gravity, and the fixing effect is good.
An aerial optical cable comprises a cable core, a wrapping layer coated outside the cable core, and an outer protective layer extruded outside the wrapping layer, wherein two first reinforcing parts are further arranged on two sides of the wrapping layer in the outer protective layer; the outer protective layer is provided with an installation groove at each insertion hole on the first reinforcing member, and the installation groove exposes the insertion hole and the insertion groove inside; the distance between the two ends of the two corresponding insertion grooves is greater than the distance between the two corresponding hook extension parts, and the width of the insertion grooves is greater than the widths of the hook extension parts and the hook body of the hook; the outer diameter of the insertion hole is smaller than the distance between the two ends of the hook body of the hook and is larger than the outer diameter of the main rod of the hook.
The overhead optical cable is characterized in that an annular limiting groove is formed in the first reinforcing part main body outside the insertion hole along the circumferential direction of the first reinforcing part, the width of the annular limiting groove is larger than that of the hook body and the hook extending part, and during installation, the hook extending part and the hook main rod are clamped into the annular limiting groove to enable the hook body to support the optical cable and cannot rotate.
The aerial optical cable is characterized in that the loose tube material is polybutylene terephthalate or modified polypropylene.
The aerial optical cable is characterized in that the first reinforcing member is made of steel wires or glass fiber reinforced plastics.
The aerial optical cable is characterized in that the second reinforcing member is made of steel wires or glass fiber reinforced plastics.
The aerial optical cable is characterized in that the outer protective layer material is low-density polyethylene or medium-density polyethylene or high-density polyethylene or flame-retardant polyolefin or polyvinyl chloride.
The overhead optical cable is characterized in that the optical communication component is a g.652 type optical fiber, a g.653 type optical fiber, a g.654 type optical fiber, a g.655 type optical fiber, a g.656 type optical fiber, a g.657 type optical fiber, an A1a type optical fiber, an A1b type optical fiber or an A1c type optical fiber, or an optical fiber ribbon comprising at least two optical fibers, or an optical fiber ribbon laminate comprising at least two optical fiber ribbons.
The aerial optical cable is characterized in that the wrapping material is a steel strip or an aluminum strip or a water-blocking strip or a non-woven fabric strip.
When the optical cable connector is installed, the directions of the two hook extending parts and the insertion groove are kept consistent, the two hooks are inserted into the two insertion holes corresponding to the two first reinforcing parts, the hook extending parts can penetrate through the insertion groove due to the elasticity of the hook extending parts, and then the hooks are rotated by 90 degrees, so that the hook bodies of the hooks support the optical cable; further still can make the nut downstream through the nut on the rotatory couple mobile jib, with the first reinforcement of couple hook body cooperation fastening, when preventing the optical cable vibration, prevent that the optical cable from breaking away from the gold utensil.
In the utility model, the first reinforcing part is provided with a plurality of inserting holes and inserting grooves, so that the optical cable has lighter weight compared with the optical cable of the common parallel steel wire reinforcing part; meanwhile, the outer protection layer of the optical cable is provided with a plurality of mounting grooves, so that the material consumption of the outer protection layer is reduced, and the weight of the optical cable is further reduced; the hook is located outer jacket upper end mounting groove, need not additionally to use protection device just protected the couple, has improved the life of couple.
Therefore, the hardware fitting has the advantages of simple structure, convenient use, light weight, no separation of parts, long service life, good fixing effect and the like; the optical cable have the beneficial effects of simple structure, light weight, low cost and the like.
Drawings
Fig. 1 is the utility model discloses embodiment 1 gold utensil spatial structure sketch map.
Fig. 2 is a schematic view of a three-dimensional structure of a hook according to embodiment 1 of the present invention.
Fig. 3 is a sectional view of the area a of embodiment 1 of the present invention.
Fig. 4 is a schematic view of a three-dimensional structure of an optical cable according to embodiment 2 of the present invention.
Fig. 5 is a top view of an optical cable according to embodiment 2 of the present invention.
Fig. 6 is a schematic perspective view of an optical cable according to embodiment 4 of the present invention.
Fig. 7 is a schematic perspective view of a first reinforcement according to embodiments 2 and 3 of the present invention.
Fig. 8 is a schematic view of the assembled three-dimensional structure of the present invention.
In the figure: 1. the optical cable connector comprises a hardware, 11, a lifting ring, 12, a hardware support, 121, a limiting component cavity, 122, a hook main rod cavity, 13, a third reinforcing piece, 14, a hook, 141, a limiting component, 142, a hook main rod, 143, a hook extending component, 144, a hook body, 2, an optical cable, 21, an outer protective layer, 211, a mounting groove, 22, a first reinforcing piece, 221, a first reinforcing piece main body, 222, an insertion hole, 223, an insertion groove, 23, a wrapping tape layer, 24, a loose tube, 25, an optical communication component and 26, and a second reinforcing piece.
Detailed Description
Example 1
Referring to fig. 1, 2 and 3, an overhead optical cable laying hardware 1 includes a lifting ring 11 and a hardware support 12, the hardware support 12 is U-shaped, a third reinforcement member is disposed at a bent portion of the hardware support 12, the lifting ring 11 is disposed above the hardware support 12, and is characterized in that a limiting component accommodating cavity 121 is formed inside each of two ends of the hardware support 12, a hook main rod accommodating cavity 122 is formed at a lower end of the limiting component accommodating cavity 121, a hook 14 is disposed below each of two ends of the hardware support 12, the hook 14 is composed of a limiting component 141, a hook main rod 142, two hook extending components 143 and a hook body 144, the limiting component 141 is disposed at an upper end of the hook main rod 142, the hook body 144 is disposed at a lower end of the hook main rod 142, the two hook extending components 143 are disposed at two sides of the hook body 144, the limiting component 141, the hook main rod 142 and the hook body 144 are integrally formed, the limiting part 141 is located in the limiting part accommodating cavity 121 and can rotate in the limiting part accommodating cavity 121, the outer diameter of the limiting part 141 is larger than the outer diameter of the upper end of the hook main rod accommodating cavity 12, the upper end of the hook main rod 142 is located in the hook main rod accommodating cavity 12, the lower end of the hook main rod 142 extends out of the hook main rod accommodating cavity 12, the hook extending part 143 has elasticity, and the two hook extending parts 143 and the hook body 144 are arc-shaped.
Example 2
An overhead optical cable laying hardware fitting 1 is provided with a hanging ring 11 and a hardware fitting support 12, wherein the hardware fitting support 12 is U-shaped, a third reinforcing member is arranged at the bending position of the hardware fitting support 12, the hanging ring 11 is positioned above the hardware fitting support 12, and the overhead optical cable laying hardware fitting is characterized in that a limiting part accommodating cavity 121 is respectively formed inside two ends of the hardware fitting support 12, a hook main rod accommodating cavity 122 is formed at the lower end of the limiting part accommodating cavity 121, a hook 14 is respectively arranged below the two ends of the hardware fitting support 12, the hook 14 is composed of a limiting part 141, a hook main rod 142, two hook extending parts 143 and a hook body 144, the limiting part 141 is positioned at the upper end of the hook main rod 142, the hook body 144 is positioned at the lower end of the hook main rod 142, the two hook extending parts 143 are respectively positioned at two sides of the hook body 144, and the limiting part 141, the limiting part 141 is positioned in the limiting part accommodating cavity 121 and can rotate in the limiting part accommodating cavity 121, the outer diameter of the limiting part 141 is larger than the outer diameter of the upper end of the hook main rod accommodating cavity 12, the upper end of the hook main rod 142 is positioned in the hook main rod accommodating cavity 12, the lower end of the hook main rod 142 extends out of the hook main rod accommodating cavity 12, the hook extending part 143 has elasticity, and the two hook extending parts 143 and the hook body 144 are arc-shaped; the hook main rod 142 is further provided with threads and a nut matched with the threads, and the hook body 144 is arranged below the nut, so that the nut cannot fall off due to optical cable vibration and self gravity, and the hardware fitting is good in fixing effect.
Example 3
Referring to fig. 4, 5 and 7, an aerial optical cable 2 includes a loose tube 24, a tape layer 23 covering the loose tube 24, and an outer sheath 21 extruded outside the tape layer 23, wherein two first strength members 22 are further disposed inside the outer sheath 21 on two sides of the tape layer 23, and at least one optical communication component 25 is disposed inside the loose tube 24; the outer protective layer 21 is provided with an installation groove 211 at each insertion hole 222 on the first reinforcing member 22, and the installation groove 211 exposes the insertion hole 222 and the insertion groove 223 inside; the distance between the two ends of the corresponding two insertion grooves 223 is greater than the distance between the corresponding two hook extension parts 143 described in embodiment 1 or embodiment 2, and the width of the insertion grooves 223 is greater than the width of the hook extension parts 143 and the hook body 144 described in embodiment 1 or embodiment 2; the outer diameter of the insertion hole 222 is smaller than the distance between both ends of the hooking body 144 described in embodiment 1 or embodiment 2 and larger than the outer diameter of the hooking main rod 142.
The aerial optical cable 2 of the embodiment is characterized in that the loose tube material is polybutylene terephthalate or modified polypropylene.
The aerial optical cable 2 of the embodiment is characterized in that the first reinforcing member 22 is made of steel wire or glass fiber reinforced plastic.
The aerial optical cable 2 according to this embodiment is characterized in that the outer sheath 21 is made of low-density polyethylene or medium-density polyethylene or high-density polyethylene or flame-retardant polyolefin or polyvinyl chloride.
The aerial optical cable 2 according to the present embodiment is characterized in that the optical communication member 25 is a g.652 type optical fiber, a g.653 type optical fiber, a g.654 type optical fiber, a g.655 type optical fiber, a g.656 type optical fiber, a g.657 type optical fiber, an A1a type optical fiber, an A1b type optical fiber, or an A1c type optical fiber, or an optical fiber ribbon comprising at least two optical fibers, or an optical fiber ribbon laminate comprising at least two optical fiber ribbons.
The aerial optical cable 2 of the embodiment is characterized in that the material of the belting layer 23 is a steel belt or an aluminum belt or a water-blocking belt or a non-woven fabric belt.
When the overhead optical cable laying fitting described in embodiment 1 is used for installation, the two hook extension members 143 are aligned with the insertion grooves 223, the two hooks 14 are inserted into the two insertion holes 222 corresponding to the two first reinforcing members 22, the hook extension members 143 can pass through the insertion grooves 223 due to the elasticity of the hook extension members 143, and the hooks 14 are rotated by 90 ° so that the hook bodies 144 hold the optical cables.
When the overhead optical cable laying hardware fitting of embodiment 2 is used for installation, the two hook extension parts 143 are kept in the same direction with the insertion groove 223, the two hooks 14 are inserted into the two insertion holes 222 corresponding to the two first reinforcing members 22, the hook extension parts 143 can penetrate through the insertion grooves 223 due to the elasticity of the hook extension parts 143, the hooks 14 are rotated by 90 degrees, the hook bodies 144 are enabled to hold the optical cable, the nuts on the hook main rods 142 are rotated, the nuts are enabled to move downwards, the first reinforcing members 22 are matched and fastened with the hook bodies 144, and the optical cable can possibly be separated from the hardware fitting when being prevented from vibrating.
Example 4
Referring to fig. 6 and 7, an aerial optical cable 2 includes at least three loose tubes 24, second strength members 26 located between the loose tubes 24, a tape layer 23 coated outside the loose tubes 24, and an outer sheath 21 extruded outside the tape layer 23, wherein two first strength members 22 are further disposed inside the outer sheath 21 on both sides of the tape layer 23, and at least one optical communication component 25 is disposed inside the loose tube 24; the outer protective layer 21 is provided with an installation groove 211 at each insertion hole 222 on the first reinforcing member 22, and the installation groove 211 exposes the insertion hole 222 and the insertion groove 223 inside; the distance between the two ends of the corresponding two insertion grooves 223 is greater than the distance between the corresponding two hook extension parts 143 described in embodiment 1 or embodiment 2, and the width of the insertion grooves 223 is greater than the width of the hook extension parts 14 and the hook body 144 of embodiment 1 or embodiment 2; the outer diameter of the insertion hole 222 is smaller than the distance between both ends of the hooking body 144 of embodiment 1 or embodiment 2 and is larger than the outer diameter of the hooking main rod 142.
The portion of the loose tube 24 described in this embodiment may be replaced with a filler cord, which increases the fiber capacity of the cable.
The aerial optical cable 2 of the embodiment is characterized in that the loose tube material is polybutylene terephthalate or modified polypropylene.
The aerial optical cable 2 of the embodiment is characterized in that the first reinforcing member 22 is made of steel wire or glass fiber reinforced plastic.
The aerial optical cable 2 of the embodiment is characterized in that the second reinforcing member 26 is made of steel wire or glass fiber reinforced plastic.
The aerial optical cable 2 according to this embodiment is characterized in that the outer sheath 21 is made of low-density polyethylene or medium-density polyethylene or high-density polyethylene or flame-retardant polyolefin or polyvinyl chloride.
The aerial optical cable 2 according to the present embodiment is characterized in that the optical communication member 25 is a g.652 type optical fiber, a g.653 type optical fiber, a g.654 type optical fiber, a g.655 type optical fiber, a g.656 type optical fiber, a g.657 type optical fiber, an A1a type optical fiber, an A1b type optical fiber, or an A1c type optical fiber, or an optical fiber ribbon comprising at least two optical fibers, or an optical fiber ribbon laminate comprising at least two optical fiber ribbons.
The aerial optical cable 2 of the embodiment is characterized in that the material of the belting layer 23 is a steel belt or an aluminum belt or a water-blocking belt or a non-woven fabric belt.
When the overhead optical cable laying fitting described in embodiment 1 is used for installation, the two hook extension members 143 are aligned with the insertion grooves 223, the two hooks 14 are inserted into the two insertion holes 222 corresponding to the two first reinforcing members 22, the hook extension members 143 can pass through the insertion grooves 223 due to the elasticity of the hook extension members 143, and the hooks 14 are rotated by 90 ° so that the hook bodies 144 hold the optical cables.
When the overhead optical cable laying hardware fitting of embodiment 2 is used for installation, the two hook extension parts 143 are kept in the same direction with the insertion groove 223, the two hooks 14 are inserted into the two insertion holes 222 corresponding to the two first reinforcing members 22, the hook extension parts 143 can penetrate through the insertion grooves 223 due to the elasticity of the hook extension parts 143, the hooks 14 are rotated by 90 degrees, the hook bodies 144 are enabled to hold the optical cable, the nuts on the hook main rods 142 are rotated, the nuts are enabled to move downwards, the first reinforcing members 22 are matched and fastened with the hook bodies 144, and the optical cable can possibly be separated from the hardware fitting when being prevented from vibrating.
Example 5
An overhead cable 2 comprises at least three loose tubes 24, a second reinforcing member 26 positioned in the middle of the loose tubes 24, a belting layer 23 coated outside the loose tubes 24, and an outer protective layer 21 extruded outside the belting layer 23, wherein two first reinforcing members 22 are further arranged on two sides of the belting layer 23 in the outer protective layer 21, and at least one optical communication component 25 is arranged in the loose tubes 24; the outer sheath 21 is provided with an installation groove 211 at each insertion hole 222 on the first reinforcing member 22, and the installation groove 211 exposes the insertion hole 222 and the insertion groove 223 inside; the distance between the two ends of the corresponding two insertion grooves 223 is greater than the distance between the corresponding two hook extension parts 143 described in embodiment 1 or embodiment 2, and the width of the insertion grooves 223 is greater than the width of the hook extension parts 143 and the hook body 144 in embodiment 1 or embodiment 2; the outer diameter of the insertion hole 222 is smaller than the distance between both ends of the hooking body 144 of embodiment 1 or embodiment 2 and is larger than the outer diameter of the hooking main rod 142, and the width of the annular stopper groove is larger than the hooking body 144 and the hooking extension part 143.
The aerial optical cable 2 of the embodiment is characterized in that the loose tube material is polybutylene terephthalate or modified polypropylene.
The aerial optical cable 2 of the embodiment is characterized in that the first reinforcing member 22 is made of steel wire or glass fiber reinforced plastic.
The aerial optical cable 2 of the embodiment is characterized in that the second reinforcing member 26 is made of steel wire or glass fiber reinforced plastic.
The aerial optical cable 2 according to this embodiment is characterized in that the outer sheath 21 is made of low-density polyethylene or medium-density polyethylene or high-density polyethylene or flame-retardant polyolefin or polyvinyl chloride.
The aerial optical cable 2 according to the present embodiment is characterized in that the optical communication member 25 is a g.652 type optical fiber, a g.653 type optical fiber, a g.654 type optical fiber, a g.655 type optical fiber, a g.656 type optical fiber, a g.657 type optical fiber, an A1a type optical fiber, an A1b type optical fiber, or an A1c type optical fiber, or an optical fiber ribbon comprising at least two optical fibers, or an optical fiber ribbon laminate comprising at least two optical fiber ribbons.
The aerial optical cable 2 of the embodiment is characterized in that the material of the belting layer 23 is a steel belt or an aluminum belt or a water-blocking belt or a non-woven fabric belt.
When the overhead optical cable laying hardware fitting described in embodiment 1 is used for installation, the two hook extension members 143 are kept in the same direction as the insertion grooves 223, and the two hooks 14 are inserted into the two insertion holes 222 corresponding to the two first reinforcing members 22, and because the hook extension members 143 have elasticity, the hook extension members 143 can pass through the insertion grooves 223, and then the hooks 14 are rotated by 90 °, so that the hook extension members 143 and the hook main rods 142 are clamped into the annular limiting grooves, and the hook bodies 144 are made to hold the optical cable and cannot rotate.
When the overhead optical cable laying hardware fitting described in embodiment 2 is used for installation, the directions of the two hook extension members 143 and the insertion groove 223 are kept consistent, the two hooks 14 are inserted into the two insertion holes 222 corresponding to the two first reinforcing members 22, the hook extension members 143 can pass through the insertion groove 223 due to the elasticity of the hook extension members 143, the hooks 14 are rotated by 90 degrees to enable the hook extension members 143 and the hook main rods 142 to be clamped into the annular limiting grooves, the hook bodies 144 are enabled to hold the optical cable and cannot rotate, the nuts on the hook main rods 142 are rotated to enable the nuts to move downwards, the first reinforcing members 22 are fastened in cooperation with the hook bodies 144, and the optical cable is prevented from being possibly separated from the hardware fitting when being vibrated.
In the present invention, the first strength member 22 has a plurality of insertion holes 222 and insertion grooves 223, so that the optical cable is lighter than a common parallel steel wire strength member optical cable; meanwhile, the optical cable outer protective layer 21 is provided with a plurality of mounting grooves 211, so that the material consumption of the outer protective layer 211 is reduced, and the weight of the optical cable is further reduced; the hook 14 is located in the upper end mounting groove 211 of the outer protective layer 21, the hook 14 is protected without using a protection device, and the service life of the hook 14 is prolonged.
Therefore, the hardware fitting has the advantages of simple structure, convenience in use, light weight, integral parts, long service life and the like; the optical cable has the advantages of simple structure, light weight, low cost and the like.
The above-mentioned embodiments are merely preferred technical solutions of the present invention, and should not be construed as limiting the present invention. The protection scope of the present invention is defined by the claims, and includes equivalents of technical features of the claims. I.e., equivalent alterations and modifications within the scope hereof, are also intended to be within the scope of the invention.
Claims (10)
1. An overhead optical cable laying hardware fitting is provided with a hanging ring (11) and a hardware fitting support (12), the hardware fitting support (12) is U-shaped, the hanging ring (11) is positioned above the hardware fitting support (12), and the overhead optical cable laying hardware fitting is characterized in that a limiting part accommodating cavity (121) is formed inside two ends of the hardware fitting support (12), a hook main rod accommodating cavity (122) is formed at the lower end of the limiting part accommodating cavity (121), a hook (14) is arranged below the two ends of the hardware fitting support (12), the hook (14) is composed of a limiting part (141), a hook main rod (142), two hook extending parts (143) and a hook body (144), the limiting part (141) is positioned at the upper end of the hook main rod (142), the hook body (144) is positioned at the lower end of the hook main rod (142), and the two hook extending parts (143) are positioned at two sides of the hook body (144) respectively, the limiting part (141) is located in the limiting part accommodating cavity (121) and can rotate in the limiting part accommodating cavity (121), the outer diameter of the limiting part (141) is larger than the outer diameter of the upper end of the hook main rod accommodating cavity (122), the upper end of the hook main rod (142) is located in the hook main rod accommodating cavity (122), the lower end of the hook main rod (142) extends out of the hook main rod accommodating cavity (122), and the hook extending part (143) has elasticity.
2. An overhead cable routing fitting according to claim 1, wherein the limiting member (141), the hooking stem (142) and the hooking body (144) are integrally formed.
3. An overhead cable routing fitting according to claim 1, wherein the two hooking extensions (143) and the hooking body (144) are arcuate.
4. An overhead cable routing fitting according to claim 1, wherein the hooking stem (142) is further provided with a screw thread and a nut engaged therewith.
5. An aerial optical cable comprises a cable core, a wrapping layer (23) coated outside the cable core, and an outer protective layer (21) extruded outside the wrapping layer (23), wherein two first reinforcing pieces (22) are arranged on two sides of the wrapping layer (23) in the outer protective layer (21), a loose tube (24) is arranged in the cable core, when one or two loose tubes (24) are arranged, the cable core is composed of one or two loose tubes (24), when at least three loose tubes (24) are arranged, the cable core is composed of the loose tube (24) and a second reinforcing piece (26) arranged in the middle of the at least three loose tubes (24), and at least one optical communication part (25) is arranged in the loose tube (24); the reinforced composite material pipe is characterized in that a plurality of insertion holes (222) which are penetrated through up and down are formed in the first reinforcing piece (22) at intervals in the axial direction, insertion grooves (223) which are communicated with the insertion holes (222) and penetrate through up and down are respectively formed in the insertion holes (222) in the two sides of the first reinforcing piece (22) in the axial direction, the insertion holes (222) and the insertion grooves (223) of the two first reinforcing pieces (22) are respectively in one-to-one correspondence, an installation groove (211) is formed in each insertion hole (222) on the first reinforcing piece (22) of the outer protection layer (21), and the insertion holes (222) and the insertion grooves (223) in the installation grooves (211) are exposed; the distance between both ends of the corresponding two insertion grooves (223) is greater than the distance between the corresponding two hook extension parts (143) of claim 1, and the width of the insertion grooves (223) is greater than the width of the hook extension parts (143) and the hook body (144) of claim 1; the outer diameter of the insertion hole (222) is smaller than the distance between both ends of the hooking body (144) of claim 1 and larger than the outer diameter of the hooking main rod (142).
6. An overhead cable as claimed in claim 5, wherein the first strength member (22) outside the insertion hole (222) is further formed with an annular restraining groove along a circumferential direction of the first strength member (22), the annular restraining groove having a width larger than the hook body (144) and the hook extension member (143).
7. An overhead cable as claimed in claim 5, wherein the loose tube material is polybutylene terephthalate or modified polypropylene.
8. An aerial cable as claimed in claim 5, wherein the first strength member (22) is of steel wire or glass fibre reinforced plastic.
9. An aerial cable as claimed in claim 5, wherein the second strength member (26) is of steel wire or glass fibre reinforced plastic.
10. An aerial optical cable as claimed in claim 5, wherein the outer sheath (21) is made of low density polyethylene or medium density polyethylene or high density polyethylene or polyvinyl chloride.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922484778.5U CN211263889U (en) | 2019-12-31 | 2019-12-31 | Overhead optical cable and optical cable laying hardware fitting |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922484778.5U CN211263889U (en) | 2019-12-31 | 2019-12-31 | Overhead optical cable and optical cable laying hardware fitting |
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| Publication Number | Publication Date |
|---|---|
| CN211263889U true CN211263889U (en) | 2020-08-14 |
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| CN201922484778.5U Active CN211263889U (en) | 2019-12-31 | 2019-12-31 | Overhead optical cable and optical cable laying hardware fitting |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021136556A1 (en) * | 2019-12-31 | 2021-07-08 | 常熟共益信息科技有限公司 | Overhead optical cable laying fitting and overhead optical cable capable of being laid by using same |
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2019
- 2019-12-31 CN CN201922484778.5U patent/CN211263889U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021136556A1 (en) * | 2019-12-31 | 2021-07-08 | 常熟共益信息科技有限公司 | Overhead optical cable laying fitting and overhead optical cable capable of being laid by using same |
| CN113678045A (en) * | 2019-12-31 | 2021-11-19 | 常熟共益信息科技有限公司 | Overhead optical cable laying hardware fitting and overhead optical cable capable of being laid by hardware fitting |
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