Mountain directly-buried cable protection device

Abstract

The utility model discloses a mountain directly-buried cable protection device, relates to the field of cable laying protection materials, and aims to solve the problem of poor long-term protection of a cable trench to a cable in the prior art by matching a cable trough with a multi-stage fine sand protection layer and a protection plate. The structure state can be kept for a long time after burying, the multi-stage fine sand protection layer and the protection plate can effectively buffer and protect the cable at the bottom of the cable trough, and the problem of damage caused by external rolling and impact is reduced; and the cross section of the through groove is trapezoidal, so that the stability of the whole structure is enhanced, and the device can better adapt to mountain terrains and resist stress generated by terrain changes.

Description

Technical Field

[0001] The utility model relates to the field of cable laying protection materials, in particular to a mountain direct-buried cable protection device. Background Art

[0002] Traditional direct buried cables are often protected by laying a layer of fine sand on top of the direct buried cables, followed by laying bricks, and finally laying backfill soil. Although a multi-layer structure of laying fine sand, bricks, and backfill soil is adopted, this protection method is insufficient when facing external forces, especially mechanical forces such as excavation. Fine sand and bricks cannot effectively withstand the impact of excavation machinery or tools, resulting in damage to the cable's fine sand protection layer and even the cable itself.

[0003] A Chinese patent (publication number: CN217642641U) discloses a pipe-through direct buried cable trench, in which the cable is laid inside the pipe and at the bottom of the cable trench body, and a backfill layer and a protective plate are arranged in layers on the upper part to improve the protection of the cable and prevent the cable from being dug up; however, the trench body is obtained by excavation, and as the cable trench is in service for a long time, when the upper part is subjected to rolling and water seepage, it is easy to cause deformation and collapse of the trench body, resulting in the trench body being unable to maintain the desired state, and the backfill layer and protective plate in the upper layer are prone to deviation, resulting in a weakened protection of the cable; especially in mountainous areas, there is the scouring effect of mountain water flow in the rainy season, the shape of the cable trench cannot be effectively guaranteed, and the cable is at a high risk of damage. Utility Model Content

[0004] The purpose of the utility model is to provide a mountain direct buried cable protection device in response to the defects of the prior art. The cable trough is arranged in combination with a multi-level fine sand protection layer and a protection plate. The cable trough is a prefabricated structural member that can resist water erosion in mountainous areas and can maintain the structural state for a long time after burial. The multi-level fine sand protection layer and the protection plate can effectively buffer and protect the cables at the bottom of the cable trough, reducing damage caused by external crushing and impact.

[0005] In order to achieve the above purpose, the following technical solutions are adopted:

[0006] A mountain direct buried cable protection device, comprising:

[0007] The cable trough is provided with a through trough with a top opening, the cross section of the through trough along a direction perpendicular to the extending direction thereof is trapezoidal, and three groups of stoppers are arranged at intervals along the vertical direction on the side walls of the through trough, and the two stoppers included in the same group are arranged on the two side walls of the through trough at the same horizontal position;

[0008] There are two protective plates located in the through slot, each protective plate is mounted on a group of blocks at the same horizontal position, a fine sand protective layer is filled between the first protective plate and the bottom surface of the through slot, a warning plate is mounted on the block between the second protective plate and the top opening of the through slot, and a backfill soil layer is laid on the warning plate.

[0009] Furthermore, the cable trough is provided with flanges on both sides of the top opening of the through slot, respectively, the flanges extend away from the through slot, and the flanges are coplanar with the top opening of the channel.

[0010] Furthermore, the flange is provided with a through hole for the positioning bolt to pass through, and the flange is used to overlap the external structure to fix the position of the cable trough by the positioning bolt.

[0011] Furthermore, the block is a long strip of triangular prism structure, the top surface of the block serves as a bearing surface for contacting the protection plate and the warning plate, and the bearing surfaces of the block in the same group are coplanar.

[0012] Furthermore, the blocks are staggered in the horizontal direction, and in adjacent groups of blocks, a horizontal spacing between two blocks in the same group located at the bottom is smaller than a horizontal spacing between two blocks in the same group located at the top.

[0013] Furthermore, a warning layer is filled between the first protection plate and the second protection plate, and an early warning layer is filled between the second protection plate and the warning plate.

[0014] Furthermore, the warning layer is a red soil warning layer, and the early warning layer is a loess early warning layer.

[0015] Furthermore, the top surface of the fine sand protection layer is in contact with the bottom surface of the first protection plate, the top surface of the warning layer is in contact with the bottom surface of the second protection plate, and the top surface of the early warning layer is in contact with the bottom surface of the warning plate.

[0016] Furthermore, the width of the through groove decreases from top to bottom, and drainage holes are arranged in an array on the bottom plate of the cable trough corresponding to the bottom of the through groove.

[0017] Furthermore, warning parts are arranged on the top surfaces of the first protective plate, the second protective plate and the warning plate, and warning words are sprayed on the warning parts.

[0018] The utility model aims to solve the problem of poor long-term protection of cables by current cable trenches by combining cable troughs with multi-level fine sand protective layers and protective plates. The cable troughs are prefabricated structural components that can resist water erosion in mountainous areas and can maintain their structural state for a long time after burial. The multi-level fine sand protective layers and protective plates can effectively buffer and protect the cables at the bottom of the cable troughs, reducing damage caused by external crushing and impact.

[0019] In this embodiment, the cross-section of the through groove is trapezoidal, which not only enhances the stability of the overall structure, but also enables the device to better adapt to mountainous terrain and resist the stress caused by terrain changes.

[0020] In this embodiment, three groups of stoppers are arranged at intervals along the vertical direction on the side walls of the through slot, and each group of stoppers is arranged on the side walls of the through slot at the same horizontal position, ensuring the stable installation of the protection plate in the through slot and effectively preventing the protection plate from displacement or tilting under the action of external forces. At the same time, the stoppers themselves also serve as a reinforcement structure for the side walls of the through slot, improving the strength and stability of the side walls of the cable trough.

[0021] In this embodiment, a protective layer of fine sand is filled between the first protective plate and the bottom surface of the through groove. The fine sand can be evenly distributed and fill the gap, providing uniform supporting force and enhancing the stability of the first protective plate. At the same time, a warning plate is mounted on the block between the second protective plate and the top opening of the through groove. This layer of structure not only provides additional support, but also prevents external objects from directly impacting the cable.

[0022] In this embodiment, components such as the protection plate, the block and the warning plate are all of modular design and can be pre-manufactured and assembled on site without the need for complicated construction procedures, which greatly improves installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of a mountain direct buried cable protection device in an embodiment of the utility model.

[0024] Figure 2 It is a schematic diagram of the structure of the cable trough in the embodiment of the utility model.

[0025] Figure 3 It is a cross-sectional schematic diagram of the cable trough in the embodiment of the utility model.

[0026] Figure 4 It is a schematic diagram of the first protection plate in the embodiment of the utility model.

[0027] Figure 5 It is a schematic diagram of the second protection plate in the embodiment of the utility model.

[0028] Figure 6 Schematic diagram of a warning plate in an embodiment of the utility model.

[0029] Explanation of numbers (in order of first appearance): 1. Cable trough, 2. Direct buried cable, 3. Fine sand protection layer, 4. First protection plate, 5. Red soil warning layer, 6. Second protection plate, 7. Loess warning layer, 8. Warning plate, 9. Backfill soil layer, 10. Positioning bolts, 101. First flange, 102. Second flange, 103. Second side wall, 104. First side wall, 105. Bottom plate, 106. Drain hole, 107. Block. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0031] Although the traditional direct buried cable 2 protection method adopts a multi-layer structure of laying fine sand, bricks and backfill soil, since the cable trench is an excavated structure, after laying the direct buried cable 2 and burying the multi-layer structure, it is easily affected by water flow and external disturbances, resulting in deformation, collapse, damage and other problems of the cable trench, which makes it difficult to meet the long-term service requirements of the direct buried cable 2. Based on this, this embodiment provides a mountain direct buried cable protection device, which uses a cable trough 1 combined with an internal protection plate and a warning plate 8 to protect the direct buried cable 2. The cable trough 1 is a trough structure with a trapezoidal cross-section. After filling the internal soil layer, a stable structure can be formed, which reduces the damage to the protection structure caused by water flow erosion, and effectively improves the protection performance to meet the long-term service requirements of the direct buried cable 2.

[0032] See also Figure 1 The mountain direct buried cable protection device includes a cable trough 1, a protection plate and a warning plate 8. At the same time, the cable trough 1 is filled with various protective soil layers according to the distribution positions of the protection plate and the warning plate 8.

[0033] The design of this mountain direct buried cable protection device is quite ingenious, taking into full account the characteristics of the mountain environment and the actual needs of cable protection. The following is a detailed analysis and explanation of the scheme:

[0034] like Figure 2 and Figure 3 As shown, the cable trough 1 includes a through slot with a top opening, so that the cables can be easily put in and taken out, and also provides space for subsequent filling and erection work. The cross section of the through slot along the direction perpendicular to its extension is trapezoidal, as shown in FIG. Figure 1 As shown, the stability of the structure is increased, and the top opening corresponds to the longer bottom side of the trapezoid, which is convenient for operation from bottom to top. Three groups of stoppers 107 are vertically spaced apart on the side walls of the through groove. The stoppers 107 provide support points for the subsequent installation of the protection plate and the warning plate 8.

[0035] There are two protective plates, namely the first protective plate 4 and the second protective plate 6, which are mounted on blocks 107 at different horizontal positions. One side of each protective plate is overlapped on one of the blocks 107 in a group of blocks 107, and the other side is overlapped on another block 107 in the group of blocks 107. A fine sand protective layer 3 is filled between the first protective plate 4 and the bottom surface of the through groove, which can provide additional buffering and protection, and can also fix the position of the cable to prevent it from moving or vibrating. A warning plate 8 is mounted on the block 107 between the second protective plate 6 and the top opening of the through groove, which increases the warning function of the device, allowing other construction workers to more easily identify the presence of the cable during excavation operations and reduce the risk of accidental injury. The warning plate 8 is located at the top of the cable trough 1 and is covered by a backfill layer 9.

[0036] In this embodiment, the cable trough 1 can be spliced ​​along the extension direction of the two ends of the through trough. The cable trough 1 is a portable integrated plastic or stainless steel structure. The length of each cable trough 1 body unit is 1500-2000mm, the bottom width of the cable trough 1 is 800-1200mm, the top width is 1400-1800mm, and the height is 800-1200mm. By enhancing the protection and warning function of the cable, the device reduces the risk of safety accidents such as fire and electric shock caused by cable damage, and ensures the safety of personnel.

[0037] Although warning posts can be set up to remind construction workers, most of the warning posts are distributed at intervals. When construction workers are digging, if they are in the area between the warning posts, it is difficult for them to realize that there are cables underground. This increases the risk of accidental damage to the cables, which can easily lead to cable breakage or damage, affecting power supply and causing economic losses.

[0038] In this regard, a multi-layer warning method is provided in this embodiment, a warning layer is filled between the first protection plate 4 and the second protection plate 6, and an early warning layer is filled between the second protection plate 6 and the warning plate 8, and warnings are given step by step by arranging early warning layers and warning layers in the cable trough 1. Among them, the warning layer is a red soil warning layer 5, and the early warning layer is a loess early warning layer 7.

[0039] A red soil warning layer 5 is filled between the first protection plate 4 and the second protection plate 6, and a loess warning layer 7 is filled between the second protection plate 6 and the warning plate 8. Different colored soil layers provide a more intuitive warning effect, allowing construction workers to quickly identify the location of the cable during digging operations to avoid accidental injuries. At the same time, different colored soil layers also provide additional identification and distinction for cable protection.

[0040] In this embodiment, the thickness of the red soil warning layer 5 is 200-300 mm, the thickness of the loess warning layer 7 is 200-300 mm, the thickness of the fine sand protection layer 3 is 150-300 mm, and the thickness of the backfill soil layer 9 is 200-300 mm.

[0041] In addition, if Figure 1 As shown, the top surface of the fine sand protection layer 3 is in contact with the bottom surface of the first protection plate 4, the top surface of the warning layer is in contact with the bottom surface of the second protection plate 6, and the top surface of the early warning layer is in contact with the bottom surface of the warning plate 8, thereby improving their fit and preventing the protection plate and the warning plate 8 from breaking when subjected to external pressure.

[0042] like Figure 2 As shown, the cable trough 1 is provided with flanges on both sides of the top opening of the through slot, the flanges extend away from the through slot, and the flanges are coplanar with the top opening of the channel; the flanges are provided with through holes for the positioning bolts 10 to pass through, and the flanges are used to overlap the external structure to fix the position of the cable trough 1 through the positioning bolts 10.

[0043] The positioning bolts 10 are used to overlap and fix the cable trough 1 with the external structure through the through holes on the flange, which not only enhances the overall stability of the cable trough 1, but also makes the installation and positioning of the cable trough 1 more accurate and convenient. The problem of easy displacement and poor stability of the cable trough 1 in the traditional method is solved, and the stability of the cable trough 1 in complex terrains such as mountains is ensured.

[0044] The block 107 is a long triangular prism structure, and the top surface of the block 107 serves as the bearing surface for contacting the protection plate and the warning plate 8. The bearing surfaces of the same group of blocks 107 are coplanar, one side of the through groove is the first side wall 104, and the other side is the second side wall 103. In the same group of blocks 107, one block 107 is installed on the first side wall 104, and the other block 107 is installed on the second side wall 103; the block 107 is designed as a long triangular prism structure with coplanar bearing surfaces, which ensures the stable installation of the protection plate and the warning plate 8.

[0045] It can be understood that the distribution position of the baffle 107 is configured according to the distribution position of the protection plate and the warning plate 8, and the bearing surface of the baffle is used as a reference surface for filling each layer structure to improve the filling accuracy and efficiency.

[0046] In this embodiment, the block 107 plays a key supporting and positioning role in the cable protection device, and the block 107 can be made of aluminum alloy, stainless steel, cast iron, etc. For example, using the aluminum alloy block 107 in the mountain direct buried cable protection device can reduce the weight of the entire device while maintaining sufficient structural strength; using the stainless steel block 107 in the mountain direct buried cable protection device can effectively prevent corrosion and oxidation, ensuring that the device can still operate stably in a humid or chemically corrosive environment; cast iron has high strength and hardness and can withstand greater pressure and load.

[0047] The block 107 needs to be set according to the distribution spacing and position of the protection plate and the warning plate 8 to ensure that the protection plate and the warning plate 8 can be stably mounted thereon. At the same time, the block 107 should be kept at an appropriate distance to facilitate the laying and maintenance of the cables. In addition, the size and shape of the block 107 should also be customized as needed to meet the requirements of different devices and cables, so that the protection plate and the warning plate 8 can be stably placed on the block 107.

[0048] In summary, the material selection of the block 107 should be determined according to the specific requirements and use environment of the cable protection device. When configuring the block 107, it is necessary to comprehensively consider factors such as the stability, corrosion resistance, and wear resistance of the device to ensure that the cable protection device can effectively protect the cable sheath from damage.

[0049] like Figure 2As shown, the flange connecting the first side wall 104 is the first flange 101, and the flange connecting the second side wall 103 is the second flange 102. The width of the first flange 101 and the width of the second flange 102 are 200-400 mm.

[0050] The first protection plate 4 and the second protection plate 6 are both made of concrete, wherein the thickness of the first protection plate 4 is 50-60 mm, and the thickness of the second protection plate 6 is 40-50 mm.

[0051] The blocks 107 are staggered in the horizontal direction, and in adjacent groups of blocks 107, the horizontal spacing between the two blocks 107 in the same group at the bottom is smaller than the horizontal spacing between the two blocks 107 in the same group at the top. This facilitates the operation from bottom to top, reduces the obstruction of the upper block 107 when inserting the lower components, and can improve the bearing capacity and stability of the cable trough 1, ensuring that sufficient support can be provided at different heights.

[0052] The width of the through groove decreases from top to bottom, and at the same time, drainage holes 106 are arranged in an array on the bottom plate 105 of the cable trough 1 corresponding to the bottom. The diameter of the drainage holes 106 is 20-30 mm, and the spacing between the drainage holes 106 is not greater than 30 mm, which not only ensures the structural stability of the cable trough 1 and meets the requirements for smooth laying of the cables, but also can effectively drain the accumulated water to prevent the cables from being damp or damaged due to water accumulation inside the cable trough 1.

[0053] like Figure 4 , Figure 5 and Figure 6 As shown, warning parts with warning words sprayed on the top surfaces of the first protection plate 4, the second protection plate 6 and the warning plate 8 are arranged. The warning words can be "High voltage! Be careful!" etc. This further enhances the warning function of the cable protection device, allowing construction workers to more clearly identify the location and importance of the cable and reduce the risk of accidental injury.

[0054] The mountain direct buried cable protection device not only improves the protection effect and stability of the cable, but also significantly enhances its warning function, so that the direct buried cable 2 can be operated more safely in complex terrains such as mountains, reducing economic losses and safety accidents caused by accidental injuries.

[0055] At the same time, the device also takes into account factors such as drainage and installation convenience, improving its practicality and operability.

[0056] The above detailed description of the specific implementation of the utility model is only used as an example, and the utility model is not limited to the specific implementation described above. For those skilled in the art, any equivalent modification or substitution of the utility model is also within the scope of the utility model. Therefore, the equalization, modification, improvement, etc. made without departing from the spirit and principle of the utility model should be included in the scope of the utility model.

Claims

1. A mountain direct buried cable protection device, characterized in that: include: The cable trough is provided with a through trough with a top opening, the cross section of the through trough along a direction perpendicular to the extending direction thereof is trapezoidal, and three groups of stoppers are arranged at intervals along the vertical direction on the side walls of the through trough, and the two stoppers included in the same group are arranged on the two side walls of the through trough at the same horizontal position; There are two protective plates located in the through slot, each protective plate is mounted on a group of blocks at the same horizontal position, a fine sand protective layer is filled between the first protective plate and the bottom surface of the through slot, a warning plate is mounted on the block between the second protective plate and the top opening of the through slot, and a backfill soil layer is laid on the warning plate.

2. The mountain direct buried cable protection device according to claim 1, characterized in that: The cable trough is provided with flanges on both sides of the top opening of the through slot, respectively. The flanges extend away from the through slot, and the flanges are coplanar with the top opening of the channel.

3. The mountain direct buried cable protection device according to claim 2, characterized in that: The flange is provided with a through hole for the positioning bolt to pass through, and the flange is used to overlap the external structure to fix the position of the cable trough through the positioning bolt.

4. The mountain direct buried cable protection device according to claim 1, characterized in that: The stopper is a long strip triangular prism structure, and the top surface of the stopper serves as a bearing surface for contacting the protection plate and the warning plate, and the bearing surfaces of the same group of stoppers are coplanar.

5. The mountain direct buried cable protection device according to claim 4, characterized in that: The blocks are staggered in the horizontal direction, and in adjacent groups of blocks, the horizontal spacing between two blocks in the same group located at the bottom is smaller than the horizontal spacing between two blocks in the same group located at the top.

6. The mountain direct buried cable protection device according to claim 1, characterized in that: A warning layer is filled between the first protection plate and the second protection plate, and an early warning layer is filled between the second protection plate and the warning plate.

7. The mountain direct buried cable protection device according to claim 6, characterized in that: The warning layer is a red soil warning layer, and the early warning layer is a loess early warning layer.

8. The mountain direct buried cable protection device according to claim 6 or 7, characterized in that: The top surface of the fine sand protection layer is in contact with the bottom surface of the first protection plate, the top surface of the warning layer is in contact with the bottom surface of the second protection plate, and the top surface of the early warning layer is in contact with the bottom surface of the warning plate.

9. The mountain direct buried cable protection device according to claim 1, characterized in that: The width of the through groove decreases from top to bottom, and drainage holes are arranged in an array on the bottom plate of the cable trough corresponding to the bottom of the through groove.

10. The mountain direct buried cable protection device according to claim 9, characterized in that: Warning parts are arranged on the top surfaces of the first protection plate, the second protection plate and the warning plate, and warning words are sprayed on the warning parts.

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