Central beam tube type rat-proof optical cable

Abstract

The invention belongs to the technical field of optical cables, and particularly discloses a central beam tube type rat-proof optical cable which is provided with an outer protective layer and a cable core, the outer protective layer is extruded outside the cable core, the cable core is composed of a central beam tube and at least three rat-proof components, the central beam tube is composed of a central beam tube body and outer fiber containing tubes, and the number of the outer fiber containing tubes is equal to that of the rat-proof components. The rat-proof part is clamped with the outer fiber accommodating tube, and optical units are arranged in the central beam tube main body and the outer fiber accommodating tube; the cable has the advantages of being low in cost, stable in cable core, good in rat-proof effect, high in mechanical strength and the like.

Description

Technical Field

[0001] The invention belongs to the technical field of optical cables, and in particular discloses a central bundle tube type rodent-proof optical cable. Background Art

[0002] Skeleton cable is a cable with a spiral groove skeleton structure. Its core feature is that the electrical unit is embedded in the U-shaped spiral skeleton groove.

[0003] In the prior art, CN110888215A discloses a skeleton cable for 5G networks, which has multiple electrical units, a third reinforcement member, a skeleton and an outer sheath. The skeleton is composed of a skeleton body, and the skeleton body is composed of at least three pairs of cavity walls, supporting components and pressure-resistant components. A pair of cavities is formed in each pair of cavity walls, and each pair of cavities is connected by an active cavity. A plurality of first grooves and a plurality of second grooves are formed on the outside of the skeleton body. A first reinforcement member is provided in the first groove, and a second reinforcement member is provided in the second groove. The electrical unit is located in the cavity.

[0004] The above-mentioned prior art has the following defects: 1. The size of the cavity cannot be adjusted; 2. The electrical unit is inconvenient to access; 3. The mechanical properties are relatively poor; 4. The heat dissipation performance is relatively poor. Summary of the Invention

[0005] In order to solve the above problems, the purpose of the present invention is to disclose a central bundle tube type rodent-proof optical cable, which is achieved by adopting the following technical solutions.

[0006] A central bundle tube type rodent-proof optical cable, comprising an outer sheath and a cable core. The outer sheath is extruded over the cable core. The cable core is composed of a central bundle tube and at least three rodent-proof components. The central bundle tube is composed of a central bundle tube body and an equal number of outer fiber tubes to the number of rodent-proof components. At least one first optical unit is disposed within the central bundle tube body. The side walls of the outer fiber tubes are connected to the outer wall of the central bundle tube body via connecting components. The outer fiber tubes are located clockwise from the corresponding connecting components. An arcuate groove is formed between the outer fiber tubes and the central bundle tube body. At least one second optical unit is disposed within the outer fiber tubes. The rodent-proof component consists of a reinforcement member and a clamping member with a C-shaped cross section. A groove is formed in the clamping member. Within the same cross section, one end of the clamping member is connected to the side wall of the reinforcement member, while the other end of the clamping member is not connected to the side wall of the reinforcement member. The rodent-proof component corresponds to the external fiber tube in one-to-one correspondence. The other end of the clamping component is clamped into the arc groove, and the external fiber tube is located in the corresponding clamping component.

[0007] In the above-mentioned central bundle tube type rodent-proof optical cable, along the clockwise direction, the reinforcing member of the front rodent-proof component is connected with the clamping member of the rear rodent-proof component.

[0008] In the above-mentioned central bundle tube type rodent-proof optical cable, the distances between two adjacent outer fiber tubes are equal.

[0009] In the above-mentioned central bundle tube type rodent-proof optical cable, the arc groove is concentric with the outer fiber tube.

[0010] In the above-mentioned central bundle tube type rodent-proof optical cable, the upper side wall of the connecting component is in a concave arc shape, and the reinforcement member is in contact with the upper side wall of the corresponding connecting component.

[0011] The central bundle tube type rodent-proof optical cable described above is also coated with a tape layer between the cable core and the outer sheath.

[0012] In the above-mentioned central bundle tube type rodent-proof optical cable, the first optical unit is an optical fiber ribbon or an optical fiber, and the second optical unit is an optical fiber.

[0013] In the above-mentioned central bundle tube type rodent-proof optical cable, the optical fiber ribbon is formed by combining at least two optical fibers. When there are multiple optical fiber ribbons, the optical fiber ribbons are stacked.

[0014] The outer sheath of the central bundle tube type rodent-proof optical cable described above is made of polyethylene, polyvinyl chloride or nylon.

[0015] The above-mentioned central bundle tube type rodent-proof optical cable has rodent-proof components integrally formed.

[0016] In the above-mentioned central bundle tube type rodent-proof optical cable, the rodent-proof component is made of steel.

[0017] The central bundle tube type rodent-proof optical cable described above has a central bundle tube formed in one piece.

[0018] In the above-mentioned central bundle tube type rodent-proof optical cable, the material of the central bundle tube is polybutylene terephthalate or modified giant polypropylene.

[0019] The aforementioned central bundle tube type rodent-proof optical cable has a wrapping layer that is a water-blocking tape.

[0020] In the above-mentioned central bundle tube type rodent-proof optical cable, the optical fiber is a single-mode optical fiber or a multi-mode optical fiber.

[0021] The present invention has the following beneficial effects: 1. The rodent-proof component and the central bundle tube are fixed by the clamping component and the arc groove, and the other end of the clamping component contacts the bottom of the arc groove, so that the clamping component cannot move, the cable core structure is stable, and there is no need to use fixing materials such as yarn, which simplifies the processing procedure and saves material and processing costs.

[0022] 2. An external fiber tube is provided in the receiving groove of the clamping component. The optical fiber in the external fiber tube is protected by the clamping component, which can effectively prevent rodents from gnawing on it.

[0023] 3. The reinforcing piece of the front rodent-proof component contacts the clamping piece of the rear rodent-proof component, so that the central bundle tube is completely located inside all rodent-proof components, thereby achieving a better rodent-proofing effect.

[0024] 4. The external fiber tubes are located outside the central bundle tube body. When one of the external fiber tubes is damaged, it will not affect the optical fibers in other external fiber tubes and the central bundle tube body, and the optical fibers can be distinguished through the external fiber tubes and the central bundle tube body.

[0025] 5. The reinforcements of two adjacent rodent-proof components do not touch each other. Compared with traditional GYXTS optical cables, the amount of reinforcements used is less, the weight is lighter, and the laying and transportation are more convenient.

[0026] 6. When the optical cable is squeezed and impacted, the first parts to be stressed are the reinforcement and connecting parts, which have little impact on the outer fiber tube, and have better compression and impact resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the three-dimensional structure of embodiment 1 of the present invention.

[0028] Figure 2 This is a front view of embodiment 1 of the present invention.

[0029] Figure 3 3D is a schematic diagram of the three-dimensional structure of the rodent-proof component of Example 1 of the present invention.

[0030] Figure 4 2 is a front view of the rodent-proof component according to embodiment 1 of the present invention.

[0031] Figure 5 3D is a schematic diagram of the three-dimensional structure of the central bundle tube according to Example 1 of the present invention.

[0032] Figure 6 This is a front view of the central bundle tube of Example 1 of the present invention.

[0033] Figure 7 It is a schematic diagram of the three-dimensional structure of embodiment 1 of the present invention.

[0034] Figure 8 This is a front view of embodiment 1 of the present invention.

[0035] In the figure, the names of the figures corresponding to the figure numbers are: 1. outer protective layer, 2. wrapping layer, 3. rodent-proof component, 31. reinforcement, 32. clamping component, 33. receiving groove, 4. optical fiber, 5. central bundle tube, 51. outer fiber tube, 52. connecting component, 53. arc groove, 54. central bundle tube body, 55. central cavity, 6. optical fiber ribbon. DETAILED DESCRIPTION

[0036] Example 1: Figures 1 to 6A central bundle tube type rodent-proof optical cable, comprising an outer sheath 1 and a cable core, the outer sheath 1 being extruded outside the cable core, the cable core being composed of a central bundle tube 5 and twelve rodent-proof components 3, the central bundle tube 5 being composed of a central bundle tube body 54 and twelve outer fiber tubes 51, the central bundle tube body 54 being provided with a central cavity 55, the central cavity 55 being provided with at least one optical fiber ribbon 6, the side walls of the twelve outer fiber tubes 51 being connected to the outer wall of the central bundle tube body 54 by a connecting component 52, the spacing between adjacent two outer fiber tubes 51 being equal, the outer fiber tubes 51 being located on the clockwise side of the corresponding connecting component 52, an arcuate groove 53 being formed between the outer fiber tubes 51 and the central bundle tube body 54, the arcuate groove 53 being concentric with the outer fiber tubes 51, the outer fiber tube 51 being provided with at least one optical fiber 4, and the upper side wall of the connecting component 52 being concave arc-shaped; The rodent-proof component 3 comprises a reinforcement member 31 and a clamping member 43 having a C-shaped cross section. A groove 33 is formed in the clamping member 43. Within the same cross section, one end of the clamping member 43 is connected to the side wall of the reinforcement member 31, while the other end of the clamping member 43 is not connected to the side wall of the reinforcement member 31. The rodent-proof components 3 correspond to the outer fiber tubes 51 one by one. The other end of the clamping component 43 is clamped into the arc-shaped groove 53. The outer fiber tube 51 is located in the corresponding clamping component 43. The reinforcement 31 is in contact with the upper side wall of the corresponding connecting component 52. In the clockwise direction, the reinforcement 31 of the previous rodent-proof component 3 is connected to the clamping component 43 of the next rodent-proof component 3. A tape layer is also coated between the cable core and the outer sheath 1 .

[0037] In the above-mentioned central bundle tube type rodent-proof optical cable, the optical fiber ribbon 6 is formed by at least two optical fibers 4 being bundled together. When there are multiple optical fiber ribbons 6, the optical fiber ribbons 6 are stacked.

[0038] Example 2: Figure 7 and Figure 8 , and refer to Figures 3 to 6 A central bundle tube type rodent-proof optical cable, comprising an outer sheath 1 and a cable core, the outer sheath 1 being extruded outside the cable core, the cable core being composed of a central bundle tube 5 and twelve rodent-proof components 3, the central bundle tube 5 being composed of a central bundle tube body 54 and twelve outer fiber tubes 51, the central bundle tube body 54 being provided with a central cavity 55, the central cavity 55 being provided with at least one optical fiber 4, the side walls of the twelve outer fiber tubes 51 being connected to the outer wall of the central bundle tube body 54 by connecting components 52, the spacing between adjacent two outer fiber tubes 51 being equal, the outer fiber tubes 51 being located on the clockwise side of the corresponding connecting components 52, an arcuate groove 53 being formed between the outer fiber tubes 51 and the central bundle tube body 54, the arcuate groove 53 being concentric with the outer fiber tubes 51, the outer fiber tube 51 being provided with at least one optical fiber 4, and the upper side wall of the connecting component 52 being concave arc-shaped; The rodent-proof component 3 comprises a reinforcement member 31 and a clamping member 43 having a C-shaped cross section. A groove 33 is formed in the clamping member 43. Within the same cross section, one end of the clamping member 43 is connected to the side wall of the reinforcement member 31, while the other end of the clamping member 43 is not connected to the side wall of the reinforcement member 31. The rodent-proof components 3 correspond to the external fiber tubes 51 one by one. The other end of the clamping component 43 is inserted into the arc-shaped groove 53, and the other end of the clamping component 43 contacts the bottom of the arc-shaped groove 53. The external fiber tube 51 is located in the corresponding clamping component 43. The reinforcement 31 is in contact with the upper side wall of the corresponding connecting component 52. In the clockwise direction, the reinforcement 31 of the previous rodent-proof component 3 contacts the clamping component 43 of the next rodent-proof component 3. A tape layer is also coated between the cable core and the outer sheath 1 .

[0039] Furthermore, the number of the rodent-proof components 3 and the corresponding outer fiber tubes 51 can be any number greater than three.

[0040] In the above-mentioned central bundle tube type rodent-proof optical cable, the material of the outer sheath 1 is polyethylene, polyvinyl chloride or nylon.

[0041] In the above-mentioned central bundle tube type rodent-proof optical cable, the rodent-proof component 3 is integrally formed.

[0042] In the above-mentioned central bundle tube type rodent-proof optical cable, the rodent-proof component 3 is made of steel.

[0043] In the above-mentioned central bundle tube type rodent-proof optical cable, the central bundle tube 5 is integrally formed.

[0044] In the above-mentioned central bundle tube type rodent-proof optical cable, the material of the central bundle tube 5 is polybutylene terephthalate or modified giant polypropylene.

[0045] In the above-mentioned central bundle tube type rodent-proof optical cable, the tape layer 2 is a water-blocking tape.

[0046] In the above-mentioned central bundle tube type rodent-proof optical cable, the optical fiber 4 is a single-mode optical fiber or a multi-mode optical fiber.

[0047] 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.

[0048] The present invention has the following beneficial effects: 1. The rodent-proof component 3 and the central bundle tube 5 are fixed by the clamping component 32 and the arc groove 53, and the other end of the clamping component 43 contacts the bottom of the arc groove 53, so that the clamping component 43 cannot move and the cable core structure is stable.

[0049] 2. An external fiber tube 51 is provided in the receiving groove 33 of the clamping component 43 . The optical fiber 4 in the external fiber tube 51 is protected by the clamping component 43 and can effectively prevent it from being gnawed by rodents.

[0050] 3. The reinforcing piece 31 of the front rodent-proof component 3 contacts the clamping component 43 of the rear rodent-proof component 3 , so that the central bundle tube 5 is completely located inside all rodent-proof components 3 , achieving a better rodent-proofing effect.

[0051] 4. The outer fiber tubes 51 are located outside the central bundle tube body 54. When one of the outer fiber tubes 51 is damaged, it will not affect the optical fibers 4 in the other outer fiber tubes 51 and the central bundle tube body 54. The optical fibers 4 can be distinguished through the outer fiber tubes 51 and the central bundle tube body 54.

[0052] 5. The reinforcement members 31 of two adjacent rodent-proof components 3 do not touch each other. Compared with the traditional GYXTS type optical cable, the reinforcement members are used in a smaller amount, the weight is lighter, and the laying and transportation are more convenient.

[0053] 6. When the optical cable is squeezed and impacted, the reinforcement 31 and the connecting component 52 are first subjected to the force, and the impact on the outer fiber tube 51 is very small, so the compression and impact resistance are better.

[0054] 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 central bundle tube type rodent-proof optical cable, comprising an outer sheath (1) and a cable core, wherein the outer sheath (1) is extruded outside the cable core, and characterized in that: The cable core is composed of a central bundle tube (5) and at least three rodent-proof components (3). The central bundle tube (5) is composed of a central bundle tube body (54) and outer fiber tubes (51) whose number is equal to the number of the rodent-proof components (3). At least one first light unit is provided in the central bundle tube body (54). The side wall of the outer fiber tube (51) is connected to the outer wall of the central bundle tube body (54) through a connecting component (52). The outer fiber tube (51) is located on the clockwise side of the corresponding connecting component (52). An arc groove (53) is formed between the outer fiber tube (51) and the central bundle tube body (54). At least one second light unit is provided in the outer fiber tube (51). The rodent-proof component (3) is composed of a reinforcing member (31) and a clamping member (43) with a C-shaped cross section. A receiving groove (33) is formed in the clamping member (43). In the same cross section, one end of the clamping member (43) is connected to the side wall of the reinforcing member (31), and the other end of the clamping member (43) is not connected to the side wall of the reinforcing member (31). The rodent-proof component (3) corresponds to the external fiber tube (51) one by one, the other end of the clamping component (43) is clamped into the arc groove (53), and the external fiber tube (51) is located in the corresponding clamping component (43).

2. The central bundle tube type rodent-proof optical cable according to claim 1, characterized in that: In the clockwise direction, the reinforcing member (31) of the front rodent-proof component (3) and the clamping member (43) of the rear rodent-proof component (3) are connected.

3. The central bundle tube type rodent-proof optical cable according to claim 2, characterized in that: The distances between two adjacent outer container filament tubes (51) are equal.

4. The central bundle tube type rodent-proof optical cable according to claim 3, characterized in that: The arc groove (53) is concentric with the outer container quill (51).

5. The central bundle tube type rodent-proof optical cable according to claim 4, characterized in that: The upper side wall of the connecting component (52) is in a concave arc shape, and the reinforcing member (31) is in contact with the upper side wall of the corresponding connecting component (52).

6. The central bundle tube type rodent-proof optical cable according to claim 5, characterized in that: A tape layer is also coated between the cable core and the outer sheath (1).

7. The central bundle tube type rodent-proof optical cable according to claim 6, characterized in that: The first optical unit is an optical fiber ribbon (6) or an optical fiber (4), and the second optical unit is an optical fiber (4).

8. The central bundle tube type rodent-proof optical cable according to claim 7, characterized in that: The optical fiber ribbon (6) is formed by combining at least two optical fibers (4). When there are multiple optical fiber ribbons (6), the optical fiber ribbons (6) are stacked.

9. The central bundle tube type rodent-proof optical cable according to claim 8, characterized in that: The optical fiber (4) is a single-mode optical fiber or a multi-mode optical fiber.

10. The central bundle tube type rodent-proof optical cable according to claim 9, characterized in that: The material of the outer protective layer (1) is polyethylene, polyvinyl chloride or nylon.

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