Layer-stranded rat-proof optical cable with engaging-preventing component

Abstract

The invention belongs to the technical field of optical cables, and particularly discloses a layer-stranded rat-proof optical cable with an engaging-preventing component, the layer-stranded rat-proof optical cable is provided with an outer protective layer, the engaging-preventing component, a belting layer and a cable core, the cable core is composed of at least n combined sleeves and a framework, n is greater than or equal to 3, each combined sleeve is provided with two first sleeves and two third sleeves, the two first sleeves are located above the third sleeves, the first sleeve and the third sleeve on the same side are connected through a second connecting part, the two first sleeves are connected through a third connecting part, and the two third sleeves of the combined sleeve are connected with the framework in a clamped mode. The invention has the beneficial effects of simple structure, convenience in processing, good compression resistance and the like.

Description

Technical Field

[0001] The invention belongs to the technical field of optical cables, and in particular discloses a layer-twisted rat-proof optical cable with an anti-engraving component. Background Art

[0002] In the prior art, as disclosed in 202111313924.3, a compression-resistant optical cable with twisting performance is disclosed, including a skeleton, an optical fiber bundle, a supporting component and a sheath. The skeleton has multiple blades in the circumference and an axial through hole in the center; the optical fiber bundle is axially arranged in the through hole; the supporting component is composed of a connecting part, a first bracket and a second bracket, and is in an inverted U shape, evenly distributed around the skeleton, the outer wall of the connecting part is fitted with the inner wall of the sheath, and the two ends are respectively connected to the first bracket and the second bracket, a fixing groove is provided in the middle part of the outer side of the first bracket, the inner end of the first bracket is adaptively inserted into the limit groove, and the inner end of the second bracket is embedded in the fixing groove on the right; the sheath is extruded on the outer surface of the supporting component.

[0003] The above-mentioned prior art has the following defects: 1. relatively poor compressive performance; 2. inconvenient processing; 3. unable to meet the needs of indoor wiring. Summary of the Invention

[0004] In order to solve the above problems, the purpose of the present invention is to disclose a layer-twisted rat-proof optical cable with a stop-engagement component, which is achieved by adopting the following technical solutions.

[0005] A layer-twisted rat-proof optical cable with a bite-stop component comprises an outer sheath, a bite-stop component, a tape layer, and a cable core. The tape layer is coated on the outside of the cable core, the bite-stop component is located outside the tape layer, and the outer sheath is extruded outside the bite-stop component. The cable core is composed of at least n combined sleeves and a skeleton, where n is ≥ 3. The combined sleeve comprises two first sleeves and two third sleeves, wherein the two first sleeves are located above the third sleeves, the first sleeves and the third sleeves on the same side are connected by a second connecting component, and the two first sleeves are connected by a third connecting component; The outer edge of the frame is provided with n pairs of spiral frame grooves, and the two third sleeves of the combined sleeve are respectively inserted into the corresponding pair of frame grooves; An independent sleeve is clamped between two adjacent combined sleeves, and at least one optical fiber is arranged in the first sleeve, the third sleeve and the independent sleeve.

[0006] The above-mentioned layer-twisted rat-proof optical cable with a locking component, the third connecting component is composed of two first connecting components and a second sleeve, the second sleeve is located between the two first connecting components, the second sleeve is located between the two third sleeves and the two first sleeves, the second sleeve is connected to the first sleeve through a first connecting component, the spacing between the two first sleeves is greater than the spacing between the two third sleeves, and at least one optical fiber is provided in the second sleeve.

[0007] The above-mentioned layer-twisted rat-proof optical cable with a stop-engagement component also has a butterfly unit provided between the two first sleeves of the combined sleeve. The butterfly unit is composed of a butterfly unit sheath, two reinforcement members and at least one optical fiber. The reinforcement member and the optical fiber are located in the butterfly unit sheath, and the optical fiber is located between the two reinforcement members.

[0008] In the above-mentioned twisted rat-proof optical cable with a bite-stopping component, the sheath of the butterfly-shaped unit is made of flame-retardant polyolefin.

[0009] In the above-mentioned layer-twisted rodent-proof optical cable with a stopper component, the material of the reinforcement is phosphated steel wire or non-metal reinforcement.

[0010] The above-mentioned layer-twisted rat-proof optical cable with a stopper component has a receiving groove formed between the two first sleeves and the two third sleeves, the inner diameter of the receiving groove is larger than the distance between the two third sleeves, an independent sleeve is provided in the receiving groove, and at least one optical fiber is provided in the independent sleeve.

[0011] The above-mentioned layer-twisted rat-proof optical cable with a bite-stopping component is also provided with a central reinforcement member in the frame.

[0012] The above-mentioned layer-twisted rat-proof optical cable with a bite-stopping component is composed of a plurality of twisted steel wires.

[0013] The outer sheath of the twisted rat-proof optical cable with the anti-engraving component is made of polyethylene, polyvinyl chloride or nylon.

[0014] The above-mentioned twisted rat-proof optical cable with a bite-stopping component has a tape layer made of aluminum tape or steel tape.

[0015] In the above-mentioned layer-twisted rat-proof optical cable with a bite-stopping component, the material of the combined sleeve is polybutylene terephthalate.

[0016] In the above-mentioned layer-twisted rat-proof optical cable with a bite-stopping component, the material of the independent sleeve is polybutylene terephthalate.

[0017] In the above-mentioned layer-twisted rodent-proof optical cable with a stopper component, the central reinforcement member is made of phosphated steel wire.

[0018] The optical fiber of the above-mentioned layer-twisted rat-proof optical cable with a stopper component is a single-mode optical fiber or a multi-mode optical fiber.

[0019] The above-mentioned twisted rat-proof optical cable with a bite-stop component has microcapsule particles in the outer sheath, and the microcapsule particles contain rat repellent. When rats bite through the microcapsule particles, the microcapsule particles can release the rat repellent to achieve the rat repellent effect.

[0020] The present invention has the following beneficial effects: 1. The combined casing is made of multiple casings connected in one piece and is easy to process.

[0021] 2. When the combined casing has a second casing, the second casing does not directly contact the frame, so that when the optical cable is squeezed, the optical fiber inside the second casing will not be affected. In emergency use, the optical fiber inside the second casing can be ensured to communicate normally as much as possible.

[0022] 3. The butterfly unit only contacts the two first connecting components but not the second sleeve, thereby further preventing the optical fiber in the second sleeve from being affected when the optical cable is squeezed.

[0023] 4. The optical cable contains both loose tubes and butterfly units, which can meet both outdoor and indoor laying requirements.

[0024] 5. When the combined sleeve does not have a second sleeve, the first connecting component can effectively protect the optical fiber in the independent sleeve in the accommodating groove from being affected.

[0025] 6. It has a dual rat repellent function. Micro-capsule particles containing rat repellent are arranged in the outer and inner protective layers, and a twisted steel wire anti-biting component is arranged between the outer protective layer and the wrapping layer.

[0026] 7. The combined casing is composed of multiple casings, and different optical fibers can be placed in different casings, and the fiber core density of the optical cable is higher.

[0027] 8. An independent sleeve is provided between two adjacent combined sleeves. The independent sleeve does not contact the stop member and the frame. When the optical cable is under pressure, the pressure effect on the optical fiber in the independent sleeve is greatly reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a front view of embodiment 1 of the present invention.

[0029] Figure 2 This is a front view of the combined sleeve according to embodiment 1 of the present invention.

[0030] Figure 3 This is a front view of the skeleton of Example 1 of the present invention.

[0031] Figure 4 This is a front view of the combined sleeve according to embodiment 2 of the present invention.

[0032] Figure 5 This is a front view of the combined sleeve according to embodiment 2 of the present invention.

[0033] In the figure, 1. outer protective layer, 2. wrapping layer, 3. combined sleeve, 31. first sleeve, 32. first connecting component, 33. second sleeve, 34. second connecting component, 35. third sleeve, 36. receiving groove, 4. independent sleeve, 5. butterfly unit, 6. skeleton, 61. skeleton body, 62. skeleton groove, 63. central reinforcement, 7. rodent-proof reinforcement. DETAILED DESCRIPTION

[0034] Example 1: Figures 1 to 3 A layer-twisted rat-proof optical cable with a stopper component comprises an outer sheath 1, a stopper component, a tape layer 2, and a cable core. The tape layer 2 is coated on the outside of the cable core, the stopper component is located outside the tape layer 2, and the outer sheath 1 is extruded outside the stopper component. The stopper component is composed of multiple twisted steel wires. The cable core is composed of six combined sleeves 3, six butterfly units 5, and a skeleton 6. The skeleton 6 is composed of a skeleton body 61 and a central reinforcement 63. The skeleton body 61 is extruded outside the central reinforcement 63. Six pairs of spiral skeleton grooves 62 are provided at intervals on the outer edge of the skeleton body 61. The combined sleeve 3 is composed of two first sleeves 31, two first connecting parts 32, a second sleeve 33, two second connecting parts 34 and two third sleeves 35. The two first sleeves 31 are located above the two third sleeves 35. The distance between the two first sleeves 31 is greater than the distance between the two third sleeves 35. The second sleeve 33 is located between the two third sleeves 35 and the two first sleeves 31. The second sleeve 33 is connected to the first sleeve 31 by a first connecting part 32. The side of the second connecting part 34 is an arc with a concave middle. The third sleeve 35 is connected to the first sleeve 31 on the same side by the second connecting part 34. The two third sleeves 35 of the combined sleeve 3 are respectively inserted into a corresponding pair of skeleton grooves 62, and an independent sleeve 4 is inserted between two adjacent combined sleeves 3; At least one optical fiber is disposed in the first sleeve 31, the second sleeve 33, the third sleeve 35 and the independent sleeve 4; The butterfly unit 5 is located between the two first sleeves 31 of the corresponding combined sleeve 3. The butterfly unit 5 consists of a butterfly unit sheath, two reinforcement members and at least one optical fiber. The reinforcement member and the optical fiber are located inside the butterfly unit sheath, and the optical fiber is located between the two reinforcement members.

[0035] In the above-mentioned twisted rat-proof optical cable with a bite-stopping component, the sheath of the butterfly-shaped unit is made of flame-retardant polyolefin.

[0036] In the above-mentioned layer-twisted rodent-proof optical cable with a stopper component, the material of the reinforcement is phosphated steel wire or non-metal reinforcement.

[0037] In the above-mentioned layer-twisted rodent-proof optical cable with a stopper component, the butterfly unit 5 only contacts the two first connecting components 32 but does not contact the second sleeve 33 .

[0038] In the above-mentioned layer-twisted rat-proof optical cable with a bite-stopping component, the independent sleeve 4 does not contact the bite-stopping component and the skeleton 6.

[0039] Example 2: Figure 4 and Figure 5 , and refer to Figure 3 A layer-twisted rat-proof optical cable with a stopper component comprises an outer sheath 1, a stopper component, a tape layer 2, and a cable core. The tape layer 2 is coated on the outside of the cable core, the stopper component is located outside the tape layer 2, the outer sheath 1 is extruded outside the stopper component, the stopper component is composed of a plurality of twisted steel wires, and the cable core is composed of six combined sleeves 3 and a skeleton 6. The skeleton 6 is composed of a skeleton body 61 and a central reinforcement 63. The skeleton body 61 is extruded outside the central reinforcement 63. Six pairs of spiral skeleton grooves 62 are spaced apart on the outer edge of the skeleton body 61. The combined sleeve 3 is composed of two first sleeves 31, a first connecting member 32, two second connecting members 34, and two third sleeves 35. The two first sleeves 31 are located above the two third sleeves 35. The distance between the two first sleeves 31 is greater than the distance between the two third sleeves 35. The two first sleeves 31 are connected by a first connecting member 32. The third sleeve 35 is connected to the first sleeve 31 on the same side by a second connecting member 34. A receiving groove 36 is formed between the two first sleeves 31 and the two third sleeves 35. The inner diameter of the receiving groove 36 is greater than the distance between the two third sleeves 35. An independent sleeve 4 is disposed in the receiving groove 36. The two third sleeves 35 of the combined sleeve 3 are respectively inserted into a corresponding pair of skeleton grooves 62 , and an independent sleeve 4 is inserted between two adjacent combined sleeves 3 . At least one optical fiber is provided in the first sleeve 31 , the second sleeve 33 , the third sleeve 35 and the independent sleeve 4 .

[0040] In the twisted rat-proof optical cable with a bite-stopping component described in any of the above embodiments, the outer sheath 1 is made of polyethylene, polyvinyl chloride, or nylon.

[0041] In the twisted rat-proof optical cable with a stopper component described in any of the above embodiments, the tape layer 2 is an aluminum tape or a steel tape.

[0042] In the layer-twisted rodent-proof optical cable with a stopper component described in any of the above embodiments, the material of the combined sleeve 3 is polybutylene terephthalate.

[0043] In the layer-twisted rodent-proof optical cable with a stopper component described in any of the above embodiments, the material of the independent sleeve 4 is polybutylene terephthalate.

[0044] In the layer-twisted rat-proof optical cable with a stopper component described in any of the above embodiments, the skeleton body 61 is made of high-density polyethylene.

[0045] In the layer-twisted rodent-proof optical cable with a stopper component described in any of the above embodiments, the material of the central reinforcement member 63 is phosphated steel wire.

[0046] In the twisted-layer rodent-proof optical cable with a stopper component described in any of the above embodiments, the optical fiber is a single-mode optical fiber or a multi-mode optical fiber.

[0047] In any of the above-mentioned embodiments, a twisted rat-proof optical cable with a bite-stop component is provided with microcapsule particles in the outer sheath 1. The microcapsule particles contain rat repellent. When rats bite through the microcapsule particles, the microcapsule particles can release the rat repellent to achieve the rat repellent effect.

[0048] In the layer-twisted rodent-proof optical cable with a stopper component described in any of the above embodiments, the combined sleeve 3 is in a twisted state and is located around the skeleton 6.

[0049] This application can be used as an intelligent sensor or intelligent sensing element; since it can transmit voice and images, it can also be used as a physical sensor, such as a voice sensor or image sensor; since it transmits optical signals through the principle of total reflection, it can also be used as a distance sensor; the optical fiber in this application is itself an optical waveguide, so it can be used as an optical waveguide, such as an array optical waveguide or a diffraction optical waveguide; this application can also be used in the field of optical computing, as part of optical computing, optical computing, and optical network computing, and as part of optical chip computing.

[0050] The present invention has the following beneficial effects: 1. The combined sleeve 3 is formed by connecting multiple sleeves and is integrally formed, which is easy to process.

[0051] 2. When the combined sleeve 3 has a second sleeve 33, the second sleeve 33 does not directly contact the skeleton 6, so that when the optical cable is squeezed, the optical fiber inside the second sleeve 33 will not be affected. In emergency use, the normal communication of the optical fiber inside the second sleeve 33 can be ensured as much as possible.

[0052] 3. The butterfly unit 5 only contacts the two first connecting components 32 but not the second sleeve 33, thereby further preventing the optical fiber in the second sleeve 33 from being affected when the optical cable is squeezed.

[0053] 4. The optical cable contains both loose tube and butterfly unit 5, which can meet both outdoor and indoor laying requirements.

[0054] 5. When the combined sleeve 3 does not have the second sleeve 33 , the first connecting component 32 can effectively protect the optical fiber in the independent sleeve 4 in the accommodating groove 36 from being affected.

[0055] 6. It has a dual rat repellent function. The outer protective layer 1 and the inner and outer protective layers 1 are provided with micro-capsule particles containing rat repellent. A twisted steel wire anti-biting component is provided between the outer protective layer 1 and the wrapping layer 2.

[0056] 7. The combined casing 3 is composed of multiple casings, and different optical fibers can be placed in different casings, so that the fiber core density of the optical cable is higher.

[0057] 8. An independent sleeve 4 is provided between two adjacent combined sleeves 3. The independent sleeve 4 does not contact the locking member and the frame 6. When the optical cable is under pressure, the pressure effect on the optical fiber in the independent sleeve 4 is greatly reduced.

[0058] The above embodiments are merely preferred technical solutions of the present invention and should not be construed as limiting the present invention. The scope of protection of the present invention shall be the technical solutions described in the claims, including equivalent alternatives to the technical features of the technical solutions described in the claims. Equivalent alternatives and improvements within this scope are also within the scope of protection of the present invention.

Claims

1. A layer-stranded rat-proof optical cable with a bite-stop component, comprising an outer sheath (1), a bite-stop component, a tape layer (2) and a cable core, wherein the tape layer (2) is coated on the outside of the cable core, the bite-stop component is located outside the tape layer (2), and the outer sheath (1) is extruded outside the bite-stop component, characterized in that: The cable core is composed of at least n combined sleeves (3) and a skeleton (6), where n≥3; The combined sleeve (3) comprises two first sleeves (31) and two third sleeves (35), wherein the two first sleeves (31) are located above the third sleeves (35), the first sleeves (31) and the third sleeves (35) on the same side are connected via a second connecting component (34), and the two first sleeves (31) are connected via a third connecting component. The outer edge of the frame (6) is provided with n pairs of spiral frame grooves (62), and the two third sleeves (35) of the combined sleeve (3) are respectively inserted into the corresponding pair of frame grooves (62); An independent sleeve (4) is also sandwiched between two adjacent combined sleeves (3), and at least one optical fiber is disposed in the first sleeve (31), the third sleeve (35) and the independent sleeve (4).

2. The layer-twisted rat-proof optical cable with a stopper according to claim 1, characterized in that: The third connecting component is composed of two first connecting components (32) and a second sleeve (33). The second sleeve (33) is located between the two first connecting components (32). The second sleeve (33) is located between the two third sleeves (35) and the two first sleeves (31). The second sleeve (33) is connected to the first sleeve (31) through a first connecting component (32). The distance between the two first sleeves (31) is greater than the distance between the two third sleeves (35). At least one optical fiber is provided in the second sleeve (33).

3. The layer-twisted rat-proof optical cable with a stopper according to claim 2, characterized in that: A butterfly unit (5) is further provided between the two first sleeves (31) of the combined sleeve (3). The butterfly unit (5) is composed of a butterfly unit sheath, two reinforcement members, and at least one optical fiber. The reinforcement member and the optical fiber are located within the butterfly unit sheath, and the optical fiber is located between the two reinforcement members.

4. The layer-twisted rodent-proof optical cable with a stopper according to claim 2, characterized in that: A receiving groove (36) is formed between the two first sleeves (31) and the two third sleeves (35). The inner diameter of the receiving groove (36) is greater than the distance between the two third sleeves (35). An independent sleeve (4) is arranged in the receiving groove (36), and at least one optical fiber is arranged in the independent sleeve (4).

5. The layer-stranded rodent-proof optical cable with a stopper according to any one of claims 1 to 4, characterized in that: A central reinforcement member is also provided in the frame (6).

6. The layer-twisted rat-proof optical cable with a stopper according to claim 5, characterized in that: The locking component is composed of a plurality of twisted steel wires.

7. The layer-twisted rat-proof optical cable with a stopper according to claim 6, characterized in that: The material of the outer protective layer (1) is polyethylene, polyvinyl chloride or nylon.

8. The layer-twisted rat-proof optical cable with a stopper component according to claim 7, characterized in that: The wrapping layer (2) is an aluminum strip or a steel strip.

9. The layer-twisted rat-proof optical cable with a stopper component according to claim 8, characterized in that: The material of the combined sleeve (3) is polybutylene terephthalate.

10. The layer-twisted rat-proof optical cable with a stopper component according to claim 9, characterized in that: Microcapsule particles are arranged in the outer protective layer (1), and the microcapsule particles contain rodent repellent.

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