Optical cable fixing device and slot box

Abstract

The utility model discloses a kind of optical cable fixing device and slot box, the optical cable fixing device contains at least two first clamps, and is stacked in U-shaped box body along the depth direction of slot box. The opposite side of two first clamps is equipped with multiple one-to-one corresponding first clamping grooves, and is arranged along the width direction of slot box. The utility model realizes multilayer optical cable partition fixing by stacking first clamp, avoids optical cable stack abrasion. The side of two first clamps close to each other is provided with multiple first clamping grooves, and the first clamping groove on two first clamps is one-to-one corresponding arrangement, ensure that optical cable horizontal spacing is consistent, realize accurate positioning, prevent displacement interference. Adapt to different number of optical cables, improve slot box space utilization. Optimize slot box space.

Description

Technical Field

[0001] This utility model relates to the field of power technology, and in particular to an optical cable fixing device and a cable tray. Background Technology

[0002] In power engineering, protective optical cables are widely used in power communication and other fields. When laid in cable trays, reliable fixing devices are required to ensure the stability and safety of the optical cables in various environments, prevent damage to the optical cables due to vibration, friction and other factors, and ensure the normal operation of communication lines.

[0003] While protective optical fiber cables are widely used due to their excellent data transmission performance, several problems also exist. The installation process for protective optical fiber cables is complex. During installation, the inability to fix the cables within the cable trays and the resulting displacement can easily cause mutual abrasion and interference. Utility Model Content

[0004] The purpose of this utility model is to provide an optical cable fixing device and a cable tray, which aims to solve the technical problems of optical cable installation, such as the inability to fix the cable in the cable tray and the easy occurrence of mutual wear and interference due to displacement during installation.

[0005] To address the aforementioned problems, according to one aspect of this application, an embodiment of the present invention provides an optical cable fixing device applied to a slot box. The slot box includes a U-shaped box body, and the optical cable fixing device includes at least two first clamping plates. The at least two first clamping plates are stacked inside the U-shaped box body along the depth direction of the U-shaped box body. Each of the two first clamping plates has a plurality of first clamping slots on its facing side, and the first clamping slots on the two first clamping plates are arranged in a one-to-one correspondence. The plurality of first clamping slots are spaced apart along the width direction of the U-shaped box body.

[0006] In some embodiments, each of the two first clamping plates is provided with a plurality of corresponding second clamping slots on the opposite side, and the plurality of second clamping slots are spaced apart along the width direction of the U-shaped box.

[0007] In some embodiments, any of the first clamping slots is located at the midpoint between two adjacent second clamping slots.

[0008] In some embodiments, the optical cable fixing device further includes two second clamping plates disposed within the U-shaped box. In the depth direction of the U-shaped box, the two second clamping plates are located on both sides of at least two first clamping plates, and the side of the two second clamping plates facing each other is provided with a third clamping groove corresponding one-to-one with a plurality of second clamping grooves on any of the first clamping plates.

[0009] In some embodiments, the first clamping groove, the second clamping groove, and the third clamping groove have the same structure and are all semi-circular grooves.

[0010] In some embodiments, the first clamping groove extends through the first clamping plate along the length direction of the U-shaped box; the second clamping groove extends through the first clamping plate along the length direction of the U-shaped box; the third clamping groove extends through the second clamping plate along the length direction of the U-shaped box, and the first clamping plate and the second clamping plate have the same thickness along the length direction of the U-shaped box.

[0011] In some embodiments, the optical cable fixing device further includes a U-shaped frame disposed within the U-shaped box, at least two first clamping plates are stacked within the U-shaped frame along the depth direction of the U-shaped frame, and two second clamping plates are located on both sides of the at least two first clamping plates and within the U-shaped frame.

[0012] In some embodiments, at least one inner sidewall of the U-shaped frame is provided with two flanges, which are located on both sides of the length of the U-shaped box and on both sides of the first clamping plate.

[0013] In some embodiments, both the first clamping plate and the second clamping plate have insertion holes that extend through the length of the U-shaped box. All the insertion holes are projected within the retaining edge. The retaining edge has through holes that correspond one-to-one with each of the insertion holes. Pins are inserted into the insertion holes and their corresponding through holes.

[0014] According to another aspect of this application, the present invention also provides a slot box, the slot box including a U-shaped box body, a cover plate and an optical cable fixing device as described above, the cover plate being disposed at the top port of the U-shaped box body.

[0015] Compared with the prior art, the optical cable fixing device of this utility model has at least the following beneficial effects:

[0016] This utility model discloses an optical cable fixing device, which includes at least two first clamping plates stacked in a U-shaped box along the depth direction of the slot. Multiple corresponding first clamping slots are provided on the facing sides of the two first clamping plates, spaced apart along the width direction of the slot. This utility model achieves multi-layer optical cable partitioning fixing by stacking the first clamping plates, avoiding wear and tear from cable stacking. Multiple first clamping slots are provided on the facing sides of the two first clamping plates, and the first clamping slots on the two first clamps are correspondingly arranged to ensure consistent horizontal spacing of the optical cables, achieving precise positioning and preventing displacement interference. It adapts to different numbers of optical cables, improving the utilization rate of slot space and optimizing slot space.

[0017] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, the preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the optical cable fixing device provided in an embodiment of the present utility model;

[0020] Figure 2 This is an exploded view of the optical cable fixing device provided in an embodiment of the present utility model;

[0021] Figure 3 A schematic diagram of the structure of the U-shaped frame of the optical cable fixing device provided in this embodiment of the utility model;

[0022] Figure 4 A schematic diagram of the structure of the first clamping plate and the second clamping plate of the optical cable fixing device provided in the embodiment of this utility model;

[0023] Figure 5 A schematic diagram of the structure of the slot box provided in the embodiment of this utility model;

[0024] Figure 6 This is an exploded structural diagram of the slot box provided in an embodiment of the present utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] 11. U-shaped box body; 12. Cover plate;

[0027] 21. First clamping plate; 211. First clamping groove; 212. Second clamping groove; 213. Insertion hole; 22. Second clamping plate; 221. Third clamping groove; 23. U-shaped frame; 231. Stop edge; 2311. Through hole; 24. Pin. Detailed Implementation

[0028] To further illustrate the technical means and effects adopted by this utility model to achieve its intended purpose, the specific implementation methods, structures, features, and effects according to this utility model application are described in detail below with reference to the accompanying drawings and preferred embodiments. In the following description, different "an embodiment" or "an embodiment" do not necessarily refer to the same embodiment. Furthermore, specific features, structures, or characteristics in one or more embodiments can be combined in any suitable form.

[0029] In the description of this utility model, it should be clarified that the terms "first," "second," etc., in the specification, claims, and drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence; the terms "vertical," "lateral," "longitudinal," "front," "back," "left," "right," "up," "down," "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this utility model, and do not mean that the device or element referred to must have a specific orientation or position, and therefore should not be construed as a limitation of this utility model.

[0030] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0031] In power engineering, protective optical cables are widely used in power communication and other fields. When laid in cable trays, reliable fixing devices are required to ensure the stability and safety of the optical cables in various environments, prevent damage to the optical cables due to shaking, friction and other factors, and ensure the normal operation of communication lines.

[0032] While protective optical cables are widely used due to their excellent data transmission performance, many problems also exist. (1) The construction process of protective optical cables is complex. During the construction and laying of protective optical cables, the inability to fix them in the cable trays and the displacement during laying can easily cause mutual wear and interference. (2) When laying protective optical cables at bends, there is a risk of mechanical stress on the turning radius. Therefore, it is necessary to use a fixing device in the cable trays of protective optical cables to allow the optical cables to pass through the device smoothly and reduce the difficulty of laying.

[0033] Example 1

[0034] like Figures 1-6As shown, this utility model embodiment provides an optical cable fixing device applied to a slot box. The slot box includes a U-shaped box body 11. The optical cable fixing device includes at least two first clamping plates 21. The at least two first clamping plates 21 are stacked inside the U-shaped box body 11 along the depth direction of the U-shaped box body 11. Each of the two first clamping plates 21 has a plurality of first clamping grooves 211 on its facing side. The first clamping grooves 211 on the two first clamping plates 21 are arranged in a one-to-one correspondence. The plurality of first clamping grooves 211 are spaced apart along the width direction of the U-shaped box body 11.

[0035] In this embodiment, the optical cable fixing device includes at least two first clamping plates 21, which are stacked in the U-shaped box 11 along the depth direction of the slot. Multiple corresponding first clamping slots 211 are provided on the facing sides of the two first clamping plates, arranged at intervals along the width direction of the slot. This embodiment achieves multi-layer optical cable partition fixing by stacking the first clamping plates 21, avoiding wear and tear from cable stacking. Multiple first clamping slots 211 are provided on the facing sides of the two first clamping plates 21, and the first clamping slots 211 on the two first clamping plates 21 are correspondingly arranged to ensure consistent horizontal spacing of the optical cables, achieving precise positioning and preventing displacement interference. It adapts to different numbers of optical cables, improving the utilization rate of the slot space and optimizing the slot space. It can accurately locate the position of the optical cables, facilitating the search for faulty optical cables.

[0036] At least two first clamping plates 21 are configured to form a vertically layered structure, with each layer's first clamping groove 211 constituting an independent optical cable channel. Optical cable vibration energy is absorbed layer by layer by each clamping plate, reducing the risk of resonance (especially suitable for high-frequency vibration environments in substations). Damaged single-layer first clamping plates 21 can be replaced independently, reducing maintenance costs by 70%.

[0037] In some embodiments, each of the two first clamping plates 21 is provided with a plurality of corresponding second clamping grooves 212 on the opposite side, and the plurality of second clamping grooves 212 are spaced apart along the width direction of the U-shaped box 11.

[0038] This embodiment adds multiple corresponding second clamping slots 212 to the opposite side of the first clamping plate 21. This allows the first clamping plate 21 to be used on both sides, securing optical cables on both sides, thus doubling the fixing capacity of a single layer of the first clamping plate 21. The number of first clamping plates 21 can be increased to support more optical cable laying needs.

[0039] In some embodiments, any of the first clamping slots 211 is located at the midpoint between two adjacent second clamping slots 212.

[0040] In this embodiment, the first clamping groove 211 is located in the middle of two adjacent second clamping grooves 212. This staggered layout avoids stress concentration between grooves and extends the lifespan of the clamping plates. The optical cables are evenly distributed along the depth direction, reducing mutual pressure damage.

[0041] In some embodiments, the optical cable fixing device further includes two second clamping plates 22 disposed within the U-shaped box 11. In the depth direction of the U-shaped box 11, the two second clamping plates 22 are located on both sides of at least two first clamping plates 21, and the side of the two second clamping plates 22 facing each other is provided with a third clamping groove 221 corresponding one-to-one with a plurality of second clamping grooves 212 on any of the first clamping plates 21.

[0042] In this embodiment, two second clamping plates 22 are added, located on both sides of at least two of the first clamping plates 21. A third clamping groove 221 is provided on the inner side of each second clamping plate, corresponding one-to-one with the second clamping groove 212 on the outer side of the first clamping plates. The second clamping plates secure the outermost optical cable, preventing it from rubbing against the inner wall of the slot. The combination of multiple clamping plates forms a rigid structure, improving overall stability and enhancing vibration resistance.

[0043] The second clamp 22 is made of a composite material with a higher elastic modulus (such as glass fiber reinforced nylon). This upgrades edge protection, with the outermost clamp (second clamp 22) absorbing 80% of the impact energy (drop ball test), protecting the optical cable from tool impacts. Silicone can be filled in the gap between the second clamp 22 and the U-shaped housing 11, achieving an IP protection rating of IP65.

[0044] In some embodiments, the first clamping groove 211, the second clamping groove 212 and the third clamping groove 221 have the same structure and are all semi-circular grooves.

[0045] In this embodiment, all clamping grooves (first clamping groove 211, second clamping groove 212, and third clamping groove 221) are semi-circular groove structures. The semi-circular grooves are adaptable to optical cables of different diameters, ensuring a high degree of fit. Maintaining a rounded contact surface reduces stress concentration on the optical cable surface, preventing pressure damage.

[0046] The circular groove edges are rounded with a radius of 0.5mm, and the groove surface has a mirror finish with a thickness of Ra≤1.6μm. This significantly reduces the coefficient of friction, lowering the resistance of the optical cable from 5N / m to 0.8N / m (compliant with YD / T901 standard). It also helps prevent micro-bending losses, and the rounded contact surface eliminates localized stress points, resulting in a transmission loss of <0.03dB / km at a wavelength of 1550nm.

[0047] In some embodiments, the first clamping groove 211 extends through the first clamping plate 21 along the length direction of the U-shaped box 11; the second clamping groove 212 extends through the first clamping plate 21 along the length direction of the U-shaped box 11; the third clamping groove 221 extends through the second clamping plate 22 along the length direction of the U-shaped box 11, and the first clamping plate 21 and the second clamping plate 22 have the same thickness along the length direction of the U-shaped box 11.

[0048] In this embodiment, all clamping slots (first clamping slot 211, second clamping slot 212, and third clamping slot 221) penetrate the clamping plate (second clamping plate 22 or first clamping plate 21) along the length of the slot box, and the clamping plates have the same thickness. This facilitates construction, allowing the optical cable to slide into the slot from the end of the clamping plate, resulting in high laying efficiency. The modular design and standardized thickness allow for arbitrary combination and assembly of the clamping plates.

[0049] In some embodiments, the optical cable fixing device further includes a U-shaped frame 23 disposed within the U-shaped box 11, at least two first clamping plates 21 are stacked within the U-shaped frame 23 along the depth direction of the U-shaped frame 23, and two second clamping plates 22 are located on both sides of the at least two first clamping plates 21 and within the U-shaped frame 23.

[0050] In this embodiment, a U-shaped frame 23 is added, in which both the first clamping plate 21 and the second clamping plate 22 are built-in. This integrates the optical cable fixing device, with the U-shaped frame 23 serving as a load-bearing skeleton, simplifying the overall installation process. It also prevents misalignment, as the U-shaped frame 23 constrains the displacement of the first clamping plate 21 and the second clamping plate 22, ensuring that the clamping slots are always precisely aligned.

[0051] The U-shaped frame 23 provides a rigid support frame for the first clamping plate 21 and the second clamping plate 22, enhancing the overall structural strength of the fixing device.

[0052] The frame structure of the U-shaped frame 23 facilitates the modular installation of the first clamping plate 21 and the second clamping plate. The number of clamping plate layers can be adjusted according to the number of optical cables, thereby improving the flexibility of the device.

[0053] In some embodiments, at least one inner sidewall of the U-shaped frame 23 is provided with two flanges 231, located on both sides of the length of the U-shaped box 11, with the two flanges 231 located on both sides of the first clamping plate 21.

[0054] In this embodiment, two retaining edges 231 are provided on the inner side of the U-shaped frame 23, and the two retaining edges 231 are located on both sides of the first clamping plate 21. The two retaining edges 231 play a limiting and protective role, preventing the first clamping plate 21 and the second clamping plate 22 from moving longitudinally and maintaining structural stability.

[0055] In some embodiments, both the first clamping plate 21 and the second clamping plate 22 are provided with insertion holes 213 extending along the length of the U-shaped box 11. All insertion holes 213 are projected within the retaining edge 231. The retaining edge 231 is provided with through holes 2311 corresponding to each insertion hole 213. Pins 24 are inserted into the insertion holes 213 and their corresponding through holes 2311.

[0056] In this embodiment, both the first clamping plate 21 and the second clamping plate 22 have insertion holes 213 extending along the length of the U-shaped box 11, and the retaining edge 231 has through holes 2311. A pin 24 passes through the insertion holes 213 and the corresponding through holes 2311, thus fixing the first clamping plate 21 and the second clamping plate 22 to the U-shaped box 11. The pin 24 connection requires no tools, facilitating maintenance and the addition or removal of optical cables, achieving rapid assembly and disassembly. Mechanical locking avoids irreversible damage caused by adhesives or welding, making it environmentally friendly and reliable.

[0057] The pin 24 connection enables the first clamping plate 21 and the second clamping plate 22 to be detachably fixed to the U-shaped frame 23, which facilitates the assembly, maintenance and replacement of the optical cable of the device.

[0058] The rigid connection method ensures that the clamps will not loosen during long-term use, guaranteeing the durability of the fixing effect.

[0059] The first clamping plate 21 and the second clamping plate 22 are made of rubber material with good elasticity and flexibility. Their internal design features arc-shaped grooves that fit the outer diameter of the protective optical fiber cable, allowing for a tight fit and preventing damage to the cable sheath. The clamping blocks are connected to the frame via springs and can be flexibly adjusted according to the number and arrangement of the optical fibers, providing appropriate clamping force to ensure the optical fibers are securely fixed.

[0060] A movable partition is installed inside the U-shaped box 11 to separate different bundles of optical cables, preventing them from tangling and being squeezed together. The partition is made of lightweight plastic material with a smooth surface to reduce friction with the optical cables.

[0061] Example 2

[0062] This utility model embodiment also provides a slot box, which includes a U-shaped box body 11, a cover plate 12 and the optical cable fixing device described in Embodiment 1. The cover plate 12 is disposed at the top port of the U-shaped box body 11.

[0063] In this embodiment, the cable tray includes a U-shaped box body 11, a cover plate 12, and an optical cable fixing device. It achieves fully enclosed protection; the cover plate 12 isolates external dust and moisture, improving the safety of the optical cable. This systematic solution, with the fixing device deeply integrated into the cable tray, optimizes overall laying efficiency.

[0064] The cover plate 12 and the U-shaped box 11 form a closed space, providing protection against dust, rodent bites, and external impacts for the optical cable.

[0065] The integrated design of the fixing device and the cable tray solves the problem of the inability to fix optical cables in traditional cable trays, and improves the safety and reliability of power communication lines.

[0066] This invention solves the core problems of easy displacement and wear of optical cables in the cable tray, significantly improving laying efficiency and long-term reliability.

[0067] This utility model discloses a device for securing and laying protective optical fiber cables within a cable tray. When laying the protective optical fiber cable, firstly, the size of the U-shaped frame 23 is adjusted according to the dimensions of the cable tray, and the device is fixed inside the cable tray. Then, the optical cable is introduced from the inlet of the device and guided smoothly into the U-shaped frame 23 by a pulley system. Inside the U-shaped frame 23, the optical cable is secured by elastic clamps and separated by a first clamp 21 and a second clamp 22 to ensure neat arrangement of the optical cable. Finally, the optical cable is led out from the outlet of the device, completing the laying process.

[0068] This invention involves placing a U-shaped frame 23 inside a slot box, adjusting the frame size according to the dimensions of the slot box to ensure a tight fit. Bolts are used to secure the frame to both sides of the slot box, ensuring its stability.

[0069] In this invention, a U-shaped frame 23 is placed inside a slot box. According to the number and arrangement of optical cables, a first clamping plate 21 and a second clamping plate 22 are installed inside the U-shaped frame 23 to ensure that the positions of the first clamping plate 21 and the second clamping plate 22 are correct.

[0070] This invention introduces a protective communication optical cable from the entrance of the device, lays the optical cable at a designated location, and fixes the optical cable with elastic clamps.

[0071] This utility model is highly adaptable in use: the adjustable U-shaped frame 23 can adapt to slots of different sizes, and the elastic clamps and partitions can be flexibly adjusted according to the number and arrangement of optical cables, making it suitable for various laying scenarios.

[0072] This invention can protect optical cables: the elastic clamps, smooth pulley blocks, and guide components can effectively reduce friction and compression between the optical cable and the device, thus preventing damage to the optical cable.

[0073] This utility model is easy to install: the device has a simple structural design, and the components can be connected by bolts, slots, etc., which makes installation and disassembly convenient and improves construction efficiency.

[0074] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the devices, apparatuses, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0075] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. An optical cable fixing device, applied to a cable tray, the cable tray comprising a U-shaped box body (11), characterized in that, The optical cable fixing device includes at least two first clamping plates (21), and the at least two first clamping plates (21) are stacked inside the U-shaped box (11) along the depth direction of the U-shaped box (11). Each of the two first clamping plates (21) is provided with a plurality of first clamping slots (211) on the side facing each other, and the first clamping slots (211) on the two first clamping plates (21) are provided in a one-to-one correspondence. The plurality of first clamping slots (211) are spaced apart along the width direction of the U-shaped box (11). The optical cable fixing device also includes a U-shaped frame (23) disposed in the U-shaped box (11), and at least two first clamps (21) are stacked in the U-shaped frame (23) along the depth direction of the U-shaped frame (23).

2. The optical cable fixing device according to claim 1, characterized in that, On the opposite sides of the two first clamping plates (21), there are multiple corresponding second clamping slots (212), and the multiple second clamping slots (212) are spaced apart along the width direction of the U-shaped box (11).

3. The optical cable fixing device according to claim 2, characterized in that, Each of the first clamping slots (211) is located at the middle of two adjacent second clamping slots (212).

4. The optical cable fixing device according to claim 2, characterized in that, The optical cable fixing device also includes two second clamping plates (22) disposed inside the U-shaped box (11). In the depth direction of the U-shaped box (11), the two second clamping plates (22) are located on both sides of at least two first clamping plates (21), and the two second clamping plates (22) are provided with a third clamping groove (221) corresponding one-to-one with a plurality of second clamping grooves (212) on any one of the first clamping plates (21).

5. The optical cable fixing device according to claim 4, characterized in that, The first clamping groove (211), the second clamping groove (212) and the third clamping groove (221) have the same structure and are all semi-circular grooves.

6. The optical cable fixing device according to claim 4, characterized in that, The first clamping groove (211) passes through the first clamping plate (21) along the length direction of the U-shaped box (11); the second clamping groove (212) passes through the first clamping plate (21) along the length direction of the U-shaped box (11); the third clamping groove (221) passes through the second clamping plate (22) along the length direction of the U-shaped box (11), and the first clamping plate (21) and the second clamping plate (22) have the same thickness along the length direction of the U-shaped box (11).

7. The optical cable fixing device according to claim 4, characterized in that, Two second clamps (22) are located inside the U-shaped frame (23).

8. The optical cable fixing device according to claim 7, characterized in that, At least one inner sidewall of the U-shaped frame (23) is constructed with two flanges (231) on both sides of the length of the U-shaped box (11), and the two flanges (231) are located on both sides of the first clamping plate (21).

9. The optical cable fixing device according to claim 8, characterized in that, Both the first clamping plate (21) and the second clamping plate (22) have insertion holes (213) that extend through the length of the U-shaped box (11). All the insertion holes (213) are projected into the retaining edge (231). The retaining edge (231) has through holes (2311) that correspond one-to-one with each of the insertion holes (213). Pins (24) are inserted into the insertion holes (213) and their corresponding through holes (2311).

10. A slot box, characterized in that, The slot includes a U-shaped box body (11), a cover plate (12), and an optical cable fixing device according to any one of claims 1-9, wherein the cover plate (12) is disposed at the top port of the U-shaped box body (11).

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