A reconstruction project culvert optical cable protection device

Abstract

The utility model discloses a kind of reconstruction engineering culvert optical cable protection devices, including optical cable body and protective cover, optical cable body is fixed in culvert wall outer wall by mounting seat and screw, mounting seat includes being equipped with locating sheet and mounting foot, locating sheet outside is equipped with clamping convex rib, the inner wall of protective cover both ends is equipped with clamping groove, and clamping groove is matched with clamping convex rib, the inner wall of protective cover is equipped with first sealing layer, the inner wall of clamping groove is equipped with second sealing layer, the both ends of protective cover are provided with dismounting gap, the utility model is equipped with the clamping convex rib of the locating sheet outside of mounting seat, the clamping convex rib of the outer portion of two adjacent mounting seats is matched with clamping groove in the both ends of protective cover respectively, to realize the protective cover installation in the outer portion of optical cable body and cover protection, prevent external direct impact optical cable body damage line body, while protective cover has excellent sealing waterproofness and thermal insulation, improve the security that optical cable body is laid in culvert uses.

Description

Technical Field

[0001] This utility model relates to the field of optical cable installation and protection technology, specifically an optical cable protection device for culverts in renovation and expansion projects. Background Technology

[0002] Optical fiber cables are manufactured to meet optical, mechanical, or environmental performance specifications. They are communication cable assemblies that use one or more optical fibers encased in a protective sheath as the transmission medium and can be used individually or in groups. Optical fiber cables are mainly composed of optical fibers (glass filaments as thin as a hair), a plastic protective sheath, and a plastic outer sheath. An optical fiber cable is a communication line that uses a certain number of optical fibers arranged in a specific way to form a cable core, encased in a sheath, and sometimes with an outer protective layer, to achieve optical signal transmission. The basic structure of an optical fiber cable generally consists of a cable core, reinforcing steel wires, filler, and a sheath. Additional components, such as a waterproof layer, a buffer layer, and insulated metal conductors, may be added as needed. During installation in culverts, optical fiber cables require special attention to moisture-proof and impact-proof protection.

[0003] A prior art patent application (application number 202221158358.3) describes an anti-bite underground communication optical cable, comprising an installation sleeve. Inside the installation sleeve are several rubber plates, and several plastic sleeves are fitted onto the rubber plates. Inside the plastic sleeves are several optical fibers, and the plastic sleeves contain filler. The installation sleeve has an insulation layer, and a soft rubber sheath is fitted onto the insulation layer. A protective mechanism is installed on the soft rubber sheath. This invention repels rats or reptiles when they gnaw on the optical cable, and provides good protection for the optical fibers inside the cable. However, the cable itself has poor impact resistance, and the protective shell has poor waterproofing and insulation. Utility Model Content

[0004] The purpose of this utility model is to provide a fiber optic cable protection device for culverts in renovation and expansion projects, so as to solve the problems of poor anti-collision protection effect of the fiber optic cable body and poor waterproof and heat insulation properties of the protective shell in the existing technology.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a fiber optic cable protection device for culverts in renovation and expansion projects, comprising a fiber optic cable body and a protective cover. The fiber optic cable body is fixed to the outer wall of the culvert wall by a mounting base and screws. The mounting base includes a positioning plate and mounting feet. The positioning plate has a snap-fit ​​rib on its outer side. The inner walls of both ends of the protective cover have snap-fit ​​grooves that cooperate with the snap-fit ​​ribs. The inner wall of the protective cover has a first sealing layer, and the inner wall of the snap-fit ​​groove has a second sealing layer. The protective cover has disassembly notches at both ends.

[0006] Furthermore, the snap-fit ​​rib is a semi-circular rib, and two sets of snap-fit ​​ribs are provided parallel to each other on the outer wall of the positioning piece.

[0007] Furthermore, the protective cover is an arc-shaped cover, and the left cross-sectional view of the arc-shaped cover is an inclined U-shape.

[0008] Furthermore, the mounting feet are fixedly welded to both sides of the positioning plate, and a mounting hole is provided inside one end of the mounting feet.

[0009] Furthermore, both the first and second sealing layers inside the protective cover are silicone rubber sealing layers, and the thickness of the first and second sealing layers is the same.

[0010] Furthermore, a reinforcing layer is provided in the middle of the protective cover, and the reinforcing layer is an alloy sheet.

[0011] Furthermore, the protective cover is provided with an insulation layer inside and a waterproof layer outside.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model utilizes the snap-fit ​​ribs on the outer side of the positioning plate of the mounting base, and the snap-fit ​​grooves at both ends of the protective cover to engage with the snap-fit ​​ribs on the outer side of the two adjacent mounting bases, thereby enabling the protective cover to be installed on the outside of the optical cable body for protection, preventing direct external collisions from damaging the optical cable body. At the same time, the protective cover has excellent sealing, waterproofing and heat insulation properties, improving the safety of the optical cable body when laid in culverts.

[0014] 2. This utility model uses a semi-circular snap-fit ​​rib, with two sets of snap-fit ​​ribs arranged parallel to each other on the outer wall of the positioning piece. The protective cover is an arc-shaped cover, and the left cross-section of the arc-shaped cover is an inclined U-shape. This makes the protective cover more stable when snapped and fixed by the snap-fit ​​groove and the snap-fit ​​rib, and makes it easy and quick to assemble and disassemble.

[0015] 3. This utility model also has a reinforcing layer in the middle of the protective cover, and the reinforcing layer is an alloy sheet, which increases the structural strength of the protective cover and makes it easier to improve the protective cover's resistance to compression and deformation. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the protective cover structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the positioning piece structure of this utility model;

[0020] Figure 4 This is an enlarged cross-sectional view of the structure at point A of this utility model.

[0021] In the diagram: 1. Culvert wall; 2. Protective cover; 3. Positioning plate; 4. Mounting foot; 5. Optical cable body; 6. Mounting hole; 7. Clip-on rib; 8. Clip-on groove; 9. Disassembly notch; 10. First sealing layer; 11. Waterproof layer; 12. Second sealing layer; 13. Insulation layer; 14. Reinforcing layer; 15. Screw. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1 , Figure 2 , Figure 3 , Figure 4 In this embodiment of the utility model, a fiber optic cable protection device for a culvert in an expansion and renovation project includes a fiber optic cable body 5 and a protective cover 2. The fiber optic cable body 5 is fixed to the outer wall of the culvert wall 1 by a mounting base and screws 15. Mounting feet 4 are fixedly welded to both sides of a positioning piece 3. One end of the mounting foot 4 has a mounting hole 6 inside. The mounting base includes a positioning piece 3 and mounting feet 4. The outer side of the positioning piece 3 has a snap-fit ​​rib 7. The inner walls of both ends of the protective cover 2 have snap-fit ​​grooves 8, and the snap-fit ​​grooves 8 cooperate with the snap-fit ​​ribs 7 to realize the installation of the protective cover 2 on the outside of the fiber optic cable body 5 for protection, preventing direct external collisions from damaging the fiber optic cable body 5.

[0024] like Figure 2 and Figure 4 As shown, in order to provide sealing, waterproofing and heat insulation for the external protection of the optical cable, a first sealing layer 10 is provided on the inner wall of the protective cover 2, a second sealing layer 12 is provided on the inner wall of the snap-fit ​​groove 8, a heat insulation layer 13 is provided inside the protective cover 2, and a waterproof layer 11 is provided on the outside of the protective cover 2. The first sealing layer 10 and the second sealing layer 12 on the inner side of the protective cover 2 are both silicone rubber sealing layers, and the thickness of the first sealing layer 10 and the second sealing layer 12 is the same, so that the protective cover 2 has excellent sealing, waterproofing and heat insulation, which improves the safety of the optical cable body 5 when it is laid in the culvert.

[0025] like Figure 1 and Figure 2As shown, in order to facilitate the partial maintenance of the optical cable body 5, disassembly notches 9 are provided at both ends of the protective cover 2, so that the disassembly notches 9 can be pulled outward to facilitate the disassembly of the installed protective cover 2, thereby facilitating the partial maintenance of the optical cable body 5.

[0026] like Figure 1 and Figure 3 As shown, in order to facilitate the disassembly and assembly of the protective cover 2, the snap-fit ​​rib 7 is set as a semi-circular rib, and two sets of snap-fit ​​rib 7 are provided parallel to each other on the outer wall of the positioning piece 3. The protective cover 2 is an arc-shaped cover, and the left cross-section of the arc-shaped cover is an inclined U-shape, which makes the protective cover 2 more stable in being snapped and fixed by the snap-fit ​​groove 8 and the snap-fit ​​rib 7, and the disassembly and assembly are convenient and quick.

[0027] like Figure 2 and Figure 4 As shown, in order to increase the structural strength inside the protective cover 2, a reinforcing layer 14 is also provided in the middle of the protective cover 2. The reinforcing layer 14 is an alloy sheet, which increases the structural strength inside the protective cover 2 and facilitates the improvement of the protective cover 2's resistance to compression and deformation.

[0028] The working principle and usage process of this utility model are as follows: In use, the optical cable body 5 is fixed to the outer wall of the culvert wall 1 by the mounting base and screws 15. Then, the two ends of the protective cover 2 are respectively engaged with the locking protrusions 7 on the outside of the two adjacent mounting bases through the locking grooves 8. This allows the protective cover 2 to be installed on the outside of the optical cable body 5 for protection, preventing direct external collisions from damaging the optical cable body 5. At the same time, the protective cover 2 has excellent sealing, waterproofing and heat insulation properties, which improves the safety of the optical cable body 5 when it is laid in the culvert.

[0029] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A reconstruction project culvert optical cable protection device, comprising an optical cable body (5) and a protective cover (2), characterized in that: The optical cable body (5) is fixed to the outer wall of the culvert wall (1) by a mounting base and screws (15). The mounting base includes a positioning plate (3) and mounting feet (4). The positioning plate (3) has a snap-fit ​​rib (7) on its outer side. The inner walls of both ends of the protective cover (2) are provided with snap-fit ​​grooves (8), and the snap-fit ​​grooves (8) cooperate with the snap-fit ​​ribs (7). The inner wall of the protective cover (2) is provided with a first sealing layer (10), and the inner wall of the snap-fit ​​grooves (8) is provided with a second sealing layer (12).

2. The improved and expanded engineering culvert optical cable protection device according to claim 1, characterized in that: The snap-fit ​​rib (7) is a semi-circular rib, and two sets of snap-fit ​​ribs (7) are provided parallel to each other on the outer wall of the positioning piece (3).

3. The device of claim 1, wherein: the device is configured to be installed in a retrofit project. The protective cover (2) is an arc-shaped cover, and the left cross-section of the arc-shaped cover is an inclined U-shape.

4. The optical cable protection device for culverts in renovation and expansion projects according to claim 1, characterized in that: The mounting feet (4) are fixedly welded to both sides of the positioning plate (3), and a mounting hole (6) is provided inside one end of the mounting feet (4).

5. The optical cable protection device for culverts in renovation and expansion projects according to claim 1, characterized in that: The first sealing layer (10) and the second sealing layer (12) inside the protective cover (2) are both silicone rubber sealing layers, and the thickness of the first sealing layer (10) and the second sealing layer (12) is the same.

6. The optical cable protection device for culverts in renovation and expansion projects according to claim 5, characterized in that: The protective cover (2) is further provided with a reinforcing layer (14) in the middle, and the reinforcing layer (14) is an alloy sheet.

7. The optical cable protection device for culverts in renovation and expansion projects according to claim 5, characterized in that: The protective cover (2) is also provided with an insulation layer (13) inside and a waterproof layer (11) outside.

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