Underground optical cable protection support for communication engineering

The design of the cable duct and protective structure inside the well has solved the problem of easy damage to optical cables in the cable well, and achieved effective protection and extended lifespan of the optical cables.

CN224536242UActive Publication Date: 2026-07-21JIMEI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIMEI UNIV
Filing Date
2025-10-27
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

During the laying of optical cables, when the optical cable needs to pass through cable wells, it is easily damaged by sharp stones or foreign objects falling from the well, which can lead to damage to the outer sheath or even breakage of the cable core, causing communication interruption.

Method used

A fiber optic cable protection bracket, comprising an in-well cable conduit and a protective structure, was designed. Through a limiting plate, threaded rod, and adjustment structure, the fiber optic cable is protected from direct contact with objects inside the well, and the cable conduit spacing can be adjusted to accommodate different distances.

Benefits of technology

It effectively protects the optical cable from damage by objects inside the well, extends the service life of the optical cable, improves the applicability of the protective structure, prevents the optical cable from directly contacting the cable pipe inside the well, and extends the service life of the optical cable.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an underground optical cable protection support for communication engineering mainly relates to underground optical cable protection support. Including two well cable pipe and adjusting structure, two the inside of well cable pipe is equipped with optical cable body, two well cable pipe's arc surface is equipped with protection structure, protection structure includes two limit board, two limit board respectively with well cable pipe abuts, the inner wall of limit board is equipped with auxiliary groove and a plurality of positioning hole, auxiliary groove and a plurality of positioning hole interpenetration. The utility model has the beneficial effect that when the operating personnel sets up the process to the underground light cable, the light cable often needs to cross the cable well, causes part light cable to be exposed in the well space, when the operating personnel maintains other cable in the well, the sharp sharp stone or foreign matter falling from the well mouth can cause damage to the outer sheath of the exposed light cable, and even can cause cable core fracture, leading to the disadvantage of communication interruption.
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Description

Technical Field

[0001] This utility model relates to the technical field of underground optical cable protection supports, and in particular to an underground optical cable protection support for communication engineering. Background Technology

[0002] Underground optical cable protective supports are mainly used to protect underground optical cables from damage during the laying process and long-term use. They are a common type of support used in communication engineering to protect underground optical cables.

[0003] Existing technologies, such as the utility model patent with publication number CN210181271U, disclose a protective shell and a buried pre-connected optical cable junction box. This patent employs a protective shell and an optical cable junction box built into the protective shell. The optical cable junction box is used to connect the trunk optical cable to the distribution optical cable. After the optical cable is connected, the optical cable junction box is fixed to a fixing device. The protective shell includes a barrel-shaped shell with two opposing sliding grooves on its inner wall, each groove having a limiting stop at its bottom. A fixing bracket includes a base plate on which the optical cable junction box is detachably mounted. Both ends of the base plate are sliding ends that slide in engagement with the opposing sliding grooves on the inner wall of the shell and are fixed to the limiting stops at the bottom of the grooves. This utility model's protective shell provides overall protection, preventing the optical cable junction box from being affected by external pressure during buried use, effectively ensuring that rainwater passes through smoothly and does not accumulate inside the protective shell cavity. This facilitates routine maintenance and extends the service life of the optical cable junction box.

[0004] In the existing technology, during the underground laying of optical cables, the optical cables often need to pass through cable wells, causing part of the optical cable to be exposed in the well space. When workers maintain other cables in the well, sharp stones or foreign objects falling from the well opening can easily damage the outer sheath of the exposed optical cable. In severe cases, it may even cause the cable core to break, resulting in communication interruption. Utility Model Content

[0005] The purpose of this utility model is to solve the problem that in the existing technology, when workers are laying optical cables underground, the optical cables often need to pass through cable wells, causing part of the optical cable to be exposed in the well space. When workers are maintaining other cables in the well, sharp stones or foreign objects falling from the well opening can easily damage the outer sheath of the exposed optical cable, and in severe cases, even cause the cable core to break, resulting in communication interruption. Therefore, this utility model proposes an underground optical cable protection bracket for communication engineering.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: It includes two in-well cable pipes and an adjustment structure. The two in-well cable pipes contain optical cable bodies. The arc surfaces of the two in-well cable pipes are provided with protective structures. The protective structures include two limiting plates, which abut against the in-well cable pipes respectively. The inner walls of the limiting plates have auxiliary grooves and several positioning holes. The auxiliary grooves and positioning holes are interconnected. A positioning block is slidably connected to the inner wall of the auxiliary groove. A threaded rod is rotatably connected to the inner wall of the positioning block, and the threaded rod is threadedly connected to the positioning hole. A rotating column is rotatably connected to the inner wall of the limiting plate. A limiting band is fixedly connected to the arc surface of the rotating column, and the limiting band is fixedly connected to the positioning block. A protective top plate is installed on the side of the two limiting plates that are close to each other, using the adjustment structure. Four connecting plates are fixedly connected to the lower surface of the protective top plate, and support plates are fixedly connected to the lower surfaces of the four connecting plates.

[0007] The effect achieved by the above components is as follows: when personnel need to pass the optical cable body between the two cable pipes in the well, the personnel can move the protective top plate so that the two limiting plates abut against the arc surface of the cable pipe in the well. Then the personnel can move the positioning block until the threaded rod turns close to the inner wall of the positioning hole, thereby protecting the optical cable body exposed between the two cable pipes in the well and improving the service life of the optical cable body.

[0008] Preferably, an auxiliary pad is fixedly connected to the side of the limiting band near the cable pipe inside the well, and the auxiliary pad abuts against the cable pipe inside the well.

[0009] The effect achieved by the above components is that the auxiliary pad can increase the friction between the cable pipe inside the well and the limiting band, and can prevent the limiting band from slipping on the arc surface of the cable pipe inside the well.

[0010] Preferably, a protective pad is fixedly connected to the upper surface of the support plate, and the protective pad abuts against the optical cable body.

[0011] The effect achieved by the above components is that the protective pad can protect the optical cable body and prevent the optical cable body from directly contacting the support plate.

[0012] Preferably, the threaded rod is a stainless steel rod.

[0013] The effect achieved by the above components is that the stainless steel rod has high strength and good wear resistance, which can prevent the threaded rod from deforming during short-term use.

[0014] Preferably, the protective top plate has an internal adjustment structure, which includes two telescopic plates, two limiting grooves, and two fixing blocks. The two telescopic plates are slidably connected to the protective top plate, and the telescopic plates are fixedly connected to the limiting plates. The two limiting grooves are both formed on the support plate, and the two fixing blocks are fixedly connected to the support plate. Two connecting plates are fixedly connected to the lower surface of the telescopic plates. Two adjusting blocks are slidably connected to the inner wall of the limiting grooves, and the adjusting blocks are fixedly connected to the connecting plates. The four connecting plates are arranged in pairs, and a fixing plate is fixedly connected to the lower surface of each pair of connecting plates. A lead screw is rotatably connected to the inner wall of the two fixing blocks. The arc surfaces at both ends of the lead screw are provided with opposite threads, and the lead screw is threadedly connected to the fixing plate.

[0015] The effect achieved by the above components is that when the distance between the two cable pipes in the well is long, personnel can rotate the screw to move the two telescopic plates away from each other until the two limit plates move to the appropriate position, thereby facilitating the protection of the optical cable body inside the two cable pipes at different distances and improving the applicability of the protective structure.

[0016] Preferably, a limiting rod is fixedly connected to the inner wall of the limiting groove, and the limiting rod is slidably connected to the adjusting block.

[0017] The effect achieved by the above components is that the limiting rod can limit the adjustment block and prevent the adjustment block from being misaligned during the sliding process on the inner wall of the limiting groove.

[0018] Preferably, a rotating rod is fixedly connected to the arc surface of the fixing block, and the cross-section of the rotating rod is circular.

[0019] The effect achieved by the above components is that the rotating rod makes it easier for personnel to rotate the lead screw, thereby improving the ease of operation.

[0020] In summary, the beneficial effects of this utility model are as follows:

[0021] In this invention, by manipulating the protective structure, when personnel need to pass the optical cable body between the two cable pipes in the well, the exposed optical cable body between the two pipes can be protected by the protective structure. This prevents the optical cable body from directly contacting objects falling from the cable well, thereby extending the service life of the optical cable body.

[0022] In this invention, by operating the adjustment structure, when the distance between the two cable pipes in the well is long, the distance between the two limiting plates can be quickly and easily adjusted by the adjustment structure, thereby protecting the optical cable body inside the two cable pipes in the well at different distances and improving the applicability of the protective structure. Attached Figure Description

[0023] Appendix Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0024] Appendix Figure 2 This is an appendix to the utility model Figure 1 A schematic diagram of the protective structure;

[0025] Appendix Figure 3 This is an appendix to the utility model Figure 2 A schematic diagram of the enlarged structure at point A;

[0026] Appendix Figure 4 This is an appendix to the utility model Figure 1 A schematic diagram of the adjustment structure.

[0027] The following are the labels in the attached diagram: 1. In-well cable duct; 2. Optical cable body; 3. Protective structure; 301. Support plate; 302. Protective pad; 303. Protective top plate; 304. Limiting plate; 305. Rotating column; 306. Limiting band; 307. Auxiliary pad; 308. Auxiliary groove; 309. Positioning hole; 310. Positioning block; 311. Threaded rod; 312. Connecting plate; 4. Adjusting structure; 41. Telescopic plate; 42. Connecting plate; 43. Fixing plate; 44. Fixing block; 45. Limiting groove; 46. Adjusting block; 47. Limiting rod; 48. Screw rod; 49. Rotating rod. Detailed Implementation

[0028] The present invention will be further illustrated below with reference to specific embodiments. It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be understood that after reading the teachings of this invention, those skilled in the art can make various alterations or modifications to the present invention, and these equivalent forms also fall within the scope defined by the appended claims.

[0029] Reference Figure 1 As shown, this utility model provides a technical solution: an underground optical cable protection support for communication engineering, including two cable pipes 1 inside the well and an adjustment structure 4. The optical cable body 2 is provided inside the two cable pipes 1 inside the well, and the arc surface of the two cable pipes 1 inside the well is provided with a protective structure 3. The protective top plate 303 is provided with an adjustment structure 4 inside.

[0030] The specific design and function of its protective structure 3 and adjustment structure 4 will be explained below.

[0031] Reference Figure 2 and Figure 3As shown in this embodiment: the protective structure 3 includes two limiting plates 304, which abut against the cable pipe 1 in the well. The inner wall of the limiting plate 304 is provided with an auxiliary groove 308 and several positioning holes 309. The auxiliary groove 308 and the several positioning holes 309 are interconnected. The inner wall of the auxiliary groove 308 is slidably connected to a positioning block 310. The inner wall of the positioning block 310 is rotatably connected to a threaded rod 311. The threaded rod 311 is threadedly connected to the positioning hole 309. The inner wall of the limiting plate 304 is rotatably connected to a rotating column 305. The arc surface of the rotating column 305 is fixedly connected to a limiting band 306. The limiting band 306 is fixedly connected to the positioning block 310. On the side of the two limiting plates 304 that are close to each other, a protective top plate 303 is installed by means of an adjusting structure 4. The lower surface of the protective top plate 303 is fixedly connected to four connecting plates 312. The lower surface of the four connecting plates 312 is fixedly connected to a support plate 301. When personnel need to pass the optical cable body 2 between the two cable ducts 1 in the well, they can move the protective top plate 303 to make the two limiting plates 304 abut against the arc surface of the cable duct 1 in the well. Then, the personnel can move the positioning block 310 until the threaded rod 311 rotates into the inner wall of the positioning hole 309. This protects the exposed optical cable body 2 between the two cable ducts 1 and extends the service life of the optical cable body 2. An auxiliary pad 307 is fixedly connected to the side of the limiting band 306 near the cable duct 1 in the well. The auxiliary pad 307 abuts against the cable duct 1 in the well. The auxiliary pad 307 increases the friction between the cable duct 1 in the well and the limiting band 306, preventing the limiting band 306 from slipping on the arc surface of the cable duct 1 in the well. A protective pad 302 is fixedly connected to the upper surface of the support plate 301. The protective pad 302 abuts against the optical cable body 2. The protective pad 302 protects the optical cable body 2 and prevents direct contact between the optical cable body 2 and the support plate 301. The threaded rod 311 is made of stainless steel. Stainless steel rods have high strength and good wear resistance, which can prevent deformation of the threaded rod 311 during short-term use.

[0032] Reference Figure 4As shown in this embodiment: the adjustment structure 4 includes two telescopic plates 41, two limiting grooves 45, and two fixing blocks 44. The two telescopic plates 41 are slidably connected to the protective top plate 303, and the telescopic plates 41 are fixedly connected to the limiting plates 304. The two limiting grooves 45 are both opened on the support plate 301. The two fixing blocks 44 are fixedly connected to the support plate 301. The lower surface of the telescopic plates 41 is fixedly connected to two connecting plates 42. The inner wall of the limiting grooves 45 is slidably connected to two adjusting blocks 46. The adjusting blocks 46 are fixedly connected to the connecting plates 42. The four connecting plates 42 are in pairs. The lower surface of one pair of connecting plates 42 is fixedly connected to a fixing plate 43. The inner wall of the two fixing blocks 44 is rotatably connected to a lead screw 48. The arc surfaces at both ends of the lead screw 48 are provided with opposite threads. The lead screw 48 is threadedly connected to the fixing plate 43. When the distance between the two cable ducts 1 in the wells is long, personnel can rotate the screw 48 to move the two telescopic plates 41 away from each other until the two limiting plates 304 move to the appropriate position. This facilitates the protection of the optical cable bodies 2 inside the two cable ducts 1 at different distances, improving the applicability of the protective structure 3. The inner wall of the limiting groove 45 is fixedly connected to a limiting rod 47, which is slidably connected to the adjusting block 46. The limiting rod 47 can limit the adjusting block 46, preventing it from becoming misaligned during sliding on the inner wall of the limiting groove 45. The arc surface of the fixed block 44 is fixedly connected to a rotating rod 49, which has a circular cross-section. The rotating rod 49 allows personnel to easily rotate the screw 48, improving the ease of operation.

[0033] Detailed Instructions for Use: When personnel need to pass the optical cable body 2 between two cable conduits 1 in two manholes, they can first move the protective top plate 303 towards the two cable conduits 1. The protective top plate 303 then moves the four connecting plates 312 towards the two cable conduits 1. The protective top plate 303 also moves the two limiting plates 304 towards the two cable conduits 1 via the adjusting structure 4. The four connecting plates 312 move the support plate 301 towards the two cable conduits 1. The support plate 301 moves the protective pad 302 towards the two cable conduits 1. The protective pad 302 protects the optical cable body 2, preventing direct contact between the optical cable body 2 and the support plate 301. Then, the limiting plate 304 moves the rotating column 305 towards the two cable conduits 1 until the two... The limiting plate 304 abuts against the cable pipe 1 inside the well. Then, the personnel rotate the positioning block 310, which drives the threaded rod 311 and the limiting band 306 to move closer to the auxiliary groove 308. The limiting band 306 drives the auxiliary pad 307 to move closer to the auxiliary groove 308. The auxiliary pad 307 can increase the friction between the cable pipe 1 inside the well and the limiting band 306, which can prevent the limiting band 306 from slipping on the arc surface of the cable pipe 1 inside the well. Until the auxiliary pad 307 passes under the cable pipe 1 inside the well and abuts against the cable pipe 1 inside the well, the positioning block 310 slides into the inner wall of the auxiliary groove 308. Then, the personnel rotate the threaded rod 311 until the threaded rod 311 rotates into the inner wall of the positioning hole 309. The threaded rod 311 is a stainless steel rod. Stainless steel rods have high strength and good wear resistance, which can prevent the threaded rod 311 from deforming during short-term use.

[0034] In addition, when the distance between the two cable pipes 1 in the well is long, the personnel can first use the rotating rod 49 to drive the lead screw 48 to rotate. The lead screw 48 drives the two fixed plates 43 to move away from each other. The rotating rod 49 makes it easy for the personnel to rotate the lead screw 48, which can improve the convenience of operation. Then, the fixed plates 43 drive the two connecting plates 42 to move away from each other. The two connecting plates 42 drive the telescopic plate 41 to move away from the protective top plate 303. The telescopic plate 41 slides inside the protective top plate 303. The connecting plates 42 also drive the adjusting block 46 to move away from each other. The adjusting block 46 slides on the arc surface of the limiting rod 47. The limiting rod 47 can limit the adjusting block 46 and prevent the adjusting block 46 from being misaligned during the sliding process on the inner wall of the limiting groove 45, until the two telescopic plates 41 drive the limiting plate 304 to move to a suitable distance.

Claims

1. A protective support for underground optical cables in communication engineering, comprising two cable pipes (1) inside the well and an adjustment structure (4), characterized in that: The two cable conduits (1) inside the well are provided with optical cable bodies (2). The arc surfaces of the two cable conduits (1) are provided with protective structures (3). The protective structures (3) include two limiting plates (304). The two limiting plates (304) abut against the cable conduits (1) in the well. The inner wall of the limiting plate (304) is provided with an auxiliary groove (308) and several positioning holes (309). The auxiliary groove (308) and the several positioning holes (309) are interconnected. The inner wall of the auxiliary groove (308) is slidably connected with a positioning block (310). The inner wall of the positioning block (310) is rotatably connected with a screw. The threaded rod (311) is threadedly connected to the positioning hole (309). The inner wall of the limiting plate (304) is rotatably connected to the rotating column (305). The arc surface of the rotating column (305) is fixedly connected to the limiting band (306). The limiting band (306) is fixedly connected to the positioning block (310). The two limiting plates (304) are close to each other on one side by means of the adjustment structure (4). The lower surface of the protective top plate (303) is fixedly connected to four connecting plates (312). The lower surface of the four connecting plates (312) is fixedly connected to the support plate (301).

2. The underground optical cable protection bracket for communication engineering according to claim 1, characterized in that: An auxiliary pad (307) is fixedly connected to the side of the limiting band (306) near the cable pipe (1) in the well, and the auxiliary pad (307) abuts against the cable pipe (1) in the well.

3. The underground optical cable protection bracket for communication engineering according to claim 1, characterized in that: A protective pad (302) is fixedly connected to the upper surface of the support plate (301), and the protective pad (302) abuts against the optical cable body (2).

4. The underground optical cable protection bracket for communication engineering according to claim 1, characterized in that: The threaded rod (311) is a stainless steel rod.

5. The underground optical cable protection bracket for communication engineering according to claim 1, characterized in that: The protective top plate (303) is internally provided with an adjustment structure (4). The adjustment structure (4) includes two telescopic plates (41), two limiting grooves (45), and two fixing blocks (44). The two telescopic plates (41) are slidably connected to the protective top plate (303), and the telescopic plates (41) are fixedly connected to the limiting plates (304). The two limiting grooves (45) are both opened on the support plate (301), and the two fixing blocks (44) are fixedly connected to the support plate (301). The lower surface of the telescopic plates (41) There are two connecting plates (42) fixedly connected. Two adjusting blocks (46) are slidably connected to the inner wall of the limiting groove (45). The adjusting blocks (46) are fixedly connected to the connecting plates (42). The four connecting plates (42) are in pairs. A fixing plate (43) is fixedly connected to the lower surface of a pair of connecting plates (42). A lead screw (48) is rotatably connected to the inner wall of the two fixing blocks (44). The arc surfaces at both ends of the lead screw (48) are provided with opposite threads. The lead screw (48) is threadedly connected to the fixing plate (43).

6. The underground optical cable protection bracket for communication engineering according to claim 5, characterized in that: The inner wall of the limiting groove (45) is fixedly connected to a limiting rod (47), and the limiting rod (47) is slidably connected to the adjusting block (46).

7. The underground optical cable protection bracket for communication engineering according to claim 5, characterized in that: The rotating rod (49) is fixedly connected to the arc surface of the fixing block (44), and the cross section of the rotating rod (49) is circular.