Cable trench rolling cable taking-in device and cable trench

Abstract

The application discloses a cable trench rolling cable bearing device, which comprises a plurality of cable bearing assemblies, the cable bearing assemblies are provided with a plurality of grid structures for cable penetration, four edges of each grid structure are provided with rolling wheels, so that the relative movement friction between the cable and the cable bearing assembly is rolling friction, and the bottom of the cable bearing assembly extends to contact the bottom surface of the cable trench. The grid structure is arranged to effectively separate the cables, the rolling wheels are arranged to form rolling friction between the cables and the cable bearing assembly, the cables can be uniformly arranged through separation, the heat dissipation is good, the cables are not easy to be damaged and broken during the cable arrangement, the vertical rods are arranged to disperse the bearing force, the bearing capacity of the cable bearing assembly is improved, and the horizontal rods are prevented from being broken.

Description

Technical Field

[0001] This application relates to the technical field of cable trenches, and more particularly to a cable trench rolling cable support device and a cable trench. Background Technology

[0002] The cable supports currently in use are usually suspended supports that are attached to the side wall of the cable trench. As shown in Chinese Patent Publication CN 111181119 A, they extend from the side wall of the cable trench into the interior of the cable trench to form a support rod for supporting the cable.

[0003] However, existing cable supports are not widely used in practice. Cables are usually still placed on the ground in cable trenches, resulting in messy stacking of cables in the trenches, which affects cable management and maintenance. At the same time, the poor heat dissipation of cables when they are clustered in the cable trenches can lead to excessively high cable temperatures, which can reduce the current carrying capacity of the cables and pose a fire safety hazard. Summary of the Invention

[0004] The purpose of this application is to provide a cable trench rolling cable support device and a cable trench, which can solve the above-mentioned problems existing in the prior art. The set grid structure effectively separates each cable, and the roller structure can make the cable be smoothly dragged on the support without damaging the cable. At the same time, the vertical bar is set to distribute the load and prevent the horizontal bar from breaking.

[0005] To achieve the above objectives, this application adopts the following technical solution:

[0006] On one hand, a cable trench rolling cable support device is provided, including a plurality of cable support components. The cable support components have a plurality of grid structures for cable threading. Each grid structure is provided with rolling wheels on its four sides so that the relative movement friction between the cable and the cable support components is rolling friction. The bottom of the cable support components extends to contact the bottom surface of the cable trench.

[0007] Optionally, the cable-bearing assembly includes: a bracket, a plurality of horizontal bars and a plurality of vertical bars, wherein the plurality of horizontal bars are spaced apart in the vertical direction and installed on the bracket, and the plurality of vertical bars are spaced apart in the horizontal direction and installed on the horizontal bars, wherein the horizontal bars and the vertical bars intersect to form the grid structure, wherein the bottom of the bracket contacts the bottom surface of the cable trench, and the vertical bars extend to abut against the bottom of the bracket.

[0008] Optionally, the rolling wheel includes a roller and an outer guard wheel. The rollers are evenly spaced on the crossbar, and gaps are formed on both sides of adjacent rollers in the horizontal direction. The crossbar has a connecting hole corresponding to the gap, through which the vertical bar can pass. One end of the vertical bar passes through each crossbar from top to bottom until it abuts the ground. The outer guard wheel is sleeved on the vertical bar and is connected between two adjacent crossbars. After installation, the outer guard wheel and the rollers form a grid structure.

[0009] Optionally, it also includes a support tube, which is sleeved on the vertical bar between two adjacent horizontal bars and between the bottom horizontal bar and the bracket, for supporting the horizontal bars.

[0010] Optionally, the outer protective wheel is provided on the support tube located between two adjacent crossbars.

[0011] Optionally, the vertical rod includes a fixed vertical rod that is fixedly connected to the bracket and a movable vertical rod that can be detached relative to the bracket. The vertical rod closest to the side wall of the cable trench forms the fixed vertical rod, and the remaining vertical rods form the movable vertical rod.

[0012] Optionally, several cable-bearing assemblies are respectively provided on the two side walls of the cable trench, and an open passage for human passage is formed between two corresponding cable-bearing assemblies.

[0013] Optionally, the two cable-bearing assemblies are arranged perpendicularly to each other to form a bend where the cable can bend. A fixing member is provided at the bend, and the fixing member is respectively connected to the top of the two brackets.

[0014] Optionally, the top of the bracket is provided with a communication conduit through which a communication cable can pass.

[0015] Optionally, a connector support bracket may also be included, which is installed on the open channel to support the cable connector.

[0016] Optionally, the roller has the same structure as the outer guard wheel.

[0017] Optionally, the roller and the outer protective wheel have different structures, and the roller has a greater load-bearing capacity than the outer protective wheel.

[0018] Optionally, the crossbar is a metal round tube; or, the crossbar includes a flat iron and a round outer tube wrapped around the flat iron.

[0019] Optionally, the reel is marked with a code to identify the cable number supported by the reel.

[0020] Optionally, the horizontal distance between two adjacent outer guard wheels is 100-200mm, and / or the vertical distance between two adjacent roller wheels is 100-200mm.

[0021] Optionally, the outer surfaces of both the roller and the outer guard wheel are arc-shaped, with the roller and the outer guard wheel having the same curvature, or the roller having a greater curvature than the outer guard wheel.

[0022] Optionally, the roller includes a steel sleeve, an insulating layer, and an outer protective layer, wherein the insulating layer is sleeved on the steel sleeve, and the outer protective layer is sleeved on the insulating layer.

[0023] Optionally, the outer protective layer has a through hole, and mud-blocking rubber rings are provided at both the upper and lower ends of the through hole.

[0024] Optionally, the bracket includes a vertical plate, a first horizontal plate, and a second horizontal plate. The first horizontal plate is vertically connected to the upper end of the vertical plate, and the second horizontal plate is vertically connected to the lower end of the vertical plate. The vertical plate is fitted and locked to the wall, and the second horizontal plate is locked to the ground. The bottom end of the vertical rod is locked to the second horizontal plate.

[0025] Optionally, the second horizontal plate is provided with a threaded hole, and the lower part of the vertical rod is provided with a thread that engages with the threaded hole. The vertical rod can rotate relative to the second horizontal plate and thus be locked onto the second horizontal plate.

[0026] Optionally, the bracket further includes a first reinforcing member in the shape of a "V", the top end of the first reinforcing member is installed on the end of the first horizontal plate away from the vertical plate, and the two bottom ends of the first reinforcing member are locked to the wall.

[0027] Optionally, the bracket further includes a second reinforcing member, which is vertically connected to the lower end of the second horizontal plate away from the vertical plate, and the second reinforcing member is locked to the ground.

[0028] Optionally, the vertical plate, the first horizontal plate, and the second horizontal plate are an integral structure, formed by integral bending to create the bracket.

[0029] Optionally, the vertical plate includes two angle irons arranged parallel to each other, the first horizontal plate and the second horizontal plate are steel plates, and the first horizontal plate and the second horizontal plate are respectively arranged at both ends of the vertical plate.

[0030] On the other hand, a cable trench is provided having a cable trench rolling cable support device as described above.

[0031] Optionally, the cable trench is a cast-in-place cable trench, and the bottom of the cable-bearing device has a flat bottom edge structure that matches the bottom surface of the cable trench.

[0032] Optionally, the cable trench is a prefabricated cable trench, and the bottom of the cable-bearing device has a clearance space corresponding to the bottom of the cable trench.

[0033] The beneficial effects of this application are as follows: By arranging multiple rollers and multiple outer sheaths at intervals, a grid structure with multiple grid points is formed. Each grid point can serve as a support structure for a cable, and the grid points do not affect each other, avoiding heat accumulation caused by cable stacking and ensuring that the current carrying capacity of the cable is not affected. The rollers arranged vertically and horizontally can rotate relative to each other, which reduces friction when the cable is dragged, prevents damage to the cable, and extends the service life of the cable. In addition, by setting vertical bars at intervals at various positions of the crossbar, and the vertical bars are grounded for support, the weight of the cable is distributed and does not accumulate on the crossbar, which can effectively prevent the crossbar from breaking. Attached Figure Description

[0034] The present application will now be described in further detail with reference to the accompanying drawings and embodiments.

[0035] Figure 1 This is a schematic diagram of the structure of the cable trench rolling cable bearing device described in the embodiments of this application. Figure 1 ;

[0036] Figure 2 This is a schematic diagram of the structure of the cable trench rolling cable bearing device described in the embodiments of this application. Figure 2 ;

[0037] Figure 3 This is a schematic diagram of the structure of the cable trench rolling cable bearing device described in the embodiments of this application. Figure 3 ;

[0038] Figure 4 This is a schematic diagram of the structure of the cable trench rolling cable bearing device described in the embodiments of this application. Figure 4 ;

[0039] Figure 5 The arrangement of the cable-bearing assembly in the cable trench as described in the embodiments of this application. Figure 1 ;

[0040] Figure 6 The arrangement of the cable-bearing assembly in the cable trench as described in the embodiments of this application. Figure 2 ;

[0041] Figure 7 The arrangement of the cable-bearing assembly in the cable trench as described in the embodiments of this application. Figure 3 ;

[0042] Figure 8 This is a three-dimensional arrangement diagram of the cable-bearing assembly described in the embodiments of this application within the cable trench;

[0043] Figure 9This is a top view of the roller described in an embodiment of this application;

[0044] Figure 10 for Figure 9 Cross-sectional structural diagram at point AA;

[0045] Figure 11 This is an exploded structural diagram of the roller described in an embodiment of this application.

[0046] Figure 12 This is a schematic diagram of the structure of the cable trench rolling cable bearing device described in the embodiments of this application. Figure 5 ;

[0047] In the diagram: 110, cable trench; 120, cable support assembly; 130, wall; 1, bracket; 101, vertical plate; 102, first horizontal plate; 103, second horizontal plate; 104, first reinforcement component; 105, second reinforcement component; 106, clearance position; 2, horizontal bar; 3, vertical bar; 4, roller; 401, steel sleeve; 402, insulation layer; 403, outer sheath; 404, mud-blocking rubber ring; 405, through hole; 5, outer protective wheel; 6, support tube; 7, communication pipeline; 8, fastener; 9, open passage. Detailed Implementation

[0048] To make the technical problems solved by this application, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of this application are further described in detail below. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0049] In the description of this application, unless otherwise expressly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0050] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0051] Cable trenches are widely used as an important component of power transmission systems. Cable supports are typically installed within these trenches to support the cables, facilitating cable layout and maintenance. However, the utilization rate of cable supports in existing cable trenches is low, and cables are often still haphazardly piled up inside. The main reasons for this are as follows:

[0052] Firstly, during cable laying, the cable is stretched from one end of the cable trench to the other by traction. If traditional cable supports are used to support the cable during this process, the cable supports are prone to breakage due to their poor load-bearing capacity. As a result, the force exerted by the cable on the cable supports can not effectively support the cable.

[0053] Meanwhile, during the movement of the cable relative to the cable support, there is sliding friction between the two. The obstruction of the cable support by the cable can cause the cable to peel, break, or otherwise affect the quality and use of the cable.

[0054] For the reasons mentioned above, when laying cables in existing cable trenches with cable supports, operators usually use the method of laying the cables inside the trench. That is, the cables are dragged and laid on the bottom surface of the cable trench to avoid damage to the cable supports and cables caused by laying the cables on the supports. However, after laying the cables in the trench, the cables will become tangled during the process of organizing them onto the cable supports, making it impossible to distribute them according to the predetermined distribution method. Moreover, due to the long length and heavy weight of the cables, it is very difficult to move them from the cable trench floor to the cable supports. In the narrow space of the cable trench, it is impossible to use heavy machinery to assist in the work. Therefore, after laying the cables in the trench, workers usually do not move the cables to the cable supports.

[0055] Based on the aforementioned shortcomings in the existing application of cable trench supports, such as Figure 1-12As shown, this embodiment provides a cable trench rolling cable support device, including a plurality of cable support assemblies 120. Each cable support assembly 120 has a plurality of mesh structures for threading cables through it. Each mesh structure has rolling wheels on its four sides so that the relative movement friction between the cable and the cable support assembly 120 is rolling friction. The bottom of the cable support assembly 120 extends to contact the bottom surface of the cable trench 110.

[0056] The cable-bearing assembly 120 includes a bracket 1, several horizontal bars 2 and several vertical bars 3. The horizontal bars 2 are arranged vertically at intervals on the bracket 1, and the vertical bars 3 are arranged horizontally at intervals on the horizontal bars 2. The horizontal bars 2 and the vertical bars 3 intersect to form the grid structure. The bottom of the bracket 1 is in contact with the bottom surface of the cable trench 110, and the vertical bars 3 extend to abut against the bottom of the bracket 1.

[0057] The rolling wheel includes a roller 4 and an outer guard wheel 5. The roller 4 is evenly spaced on the crossbar 2, and gaps are formed on both sides of adjacent roller 4 in the horizontal direction. The crossbar 2 has a connecting hole corresponding to the gap, through which the vertical bar 3 can pass. One end of the vertical bar 3 passes through each crossbar 2 from top to bottom until it abuts and locks against the ground. The outer guard wheel 5 is fitted on the vertical bar 3 and is connected between two adjacent crossbars 2. After installation, each outer guard wheel 5 and each roller 4 form a grid structure, with two adjacent roller 4 on the top and bottom and two adjacent outer guard wheels 5 on the left and right forming a grid point.

[0058] Based on the above scheme, the roller 4 can roll around the crossbar 2, and the outer sheath 5 can also rotate relative to it. The formed grid point can be composed of two upper and lower rollers 4, a bracket 1, and a side outer sheath 5, or it can be composed of two upper and lower rollers 4 and two left and right outer sheaths 5. The grid point consists of at least three rolling wheels. When the cable is placed on the grid point and dragged, there is sliding friction between the cable and the roller 4 and the outer sheath 5. The friction is small, the cable is easily dragged, and damage to the cable is also reduced. The cable receiving device as a whole is grid-shaped, and the grid points do not affect each other. Therefore, the cables placed on the grid points do not interfere with each other, making the cables neat and orderly arranged. This can effectively ensure the heat dissipation of the cables and avoid the heat affecting the current carrying capacity of the cables or the cables operating at overheating. Furthermore, since most existing cable trays are horizontally extending structures that are parallel to each other, they are prone to breakage due to the weight of the cables. In this solution, each horizontal bar 2 is supported by a vertical bar 3, and the vertical bar 3 is supported to the ground, transferring the weight to the ground, which can effectively prevent the horizontal bar 2 from breaking under pressure. The vertical bar 3 also provides an installation position for the outer protective wheel 5, which can rotate around the vertical bar 3. The outer protective wheel 5 set between the two horizontal bars 2 also plays a supporting role to a certain extent, maximizing the structural strength of the horizontal bar 2.

[0059] For the scheme of setting vertical rods 3, a support tube 6 is also provided. The support tube 6 is sleeved on the vertical rod 3 between two adjacent horizontal rods 2 and between the bottom horizontal rod 2 and the bracket 1, for supporting the horizontal rod 2. One end of the support tube 6 abuts against the bottom horizontal rod 2, and the other end abuts against the bottom of the bracket 1. The support tube 6 needs to be made of a material with high structural strength to ensure that it can bear the weight of all cables. The support tube 6 corresponds to the outer protective wheels 5 of each column. As the bottom support point, the support tube 6 provides support for the outer protective wheels 5 of each layer, and the outer protective wheels 5 of each layer support the horizontal rod 2 above, realizing effective support at each level and further ensuring the stability of the horizontal rod 2. In addition, the support tube 6 corresponds one-to-one with each vertical rod 3, so the force is evenly distributed.

[0060] In this scheme, the positions of part of the support rod 6 and the outer guard wheel 5 coincide. Specifically, the positional relationship between the two is that the support rod 6 located between two adjacent crossbars 2 is fitted with the outer guard wheel 5.

[0061] In this embodiment, the vertical rod 3 includes a fixed vertical rod that is fixedly connected to the bracket 1 and a movable vertical rod that can be detached from the bracket 1. The vertical rod 3 closest to the side wall of the cable trench 110 forms the fixed vertical rod, and the remaining vertical rods 3 form the movable vertical rod.

[0062] That is, the vertical rod 3 closest to the bracket 1 can be a non-removable fixed vertical rod, because the vertical rod 3 closest to the innermost side will not block the placement of cables in the other grids, so the structural strength of the fixed connection is better. Specifically, the bracket 1, the support tube 6 and the vertical rod 3 can be fixed by welding. In addition, the other vertical rods 3 are detachable movable vertical rods, which can be removed during cable laying and maintenance, providing convenience for use.

[0063] Unlike the above scheme, in an optional embodiment of this application, a single vertical rod 3 can be replaced with multiple connecting rods, each connecting rod being disposed between two adjacent horizontal rods 2, and the outer protective wheel 5 being rotatably sleeved on the connecting rod. This can be understood as multiple connecting rods being spaced apart between two horizontal rods 2, serving to support the horizontal rods 2 and realize the rotation of the outer protective wheel 5.

[0064] For the linkage scheme, the support tube 6 can be fitted only on the lowest linkage. Both the linkage and the support tube 6 provide support, achieving dual protection and load-bearing, effectively ensuring the safety and stability of the cable-bearing device.

[0065] like Figure 8 As shown, several cable-bearing assemblies 120 are respectively installed on both sides of the cable trench 110, and an open passage 9 for human passage is formed between corresponding pairs of cable-bearing assemblies 120. Operators can walk normally in the open passage 9 to facilitate the maintenance or replacement of the cable-bearing device.

[0066] In some embodiments, the two cable-bearing assemblies 120 are arranged vertically to form a bend where the cable can bend. A fixing member 8 is provided at the bend, and the fixing member 8 is respectively connected to the top of the two brackets 1. Due to the complex structure of the cable trench 110, the cable-bearing assemblies 120 need to adapt to both straight-line arrangements and corner arrangements. For corner structures, the two cable-bearing assemblies 120 need to be attached to the wall 130 at the corner. When the corner is a right angle, the two cable-bearing assemblies 120 are essentially vertically connected. The same arrangement applies to corner structures that are not right angles. After the two cable-bearing assemblies 120 are fixed, they are then fixedly connected by the fixing member 8 to prevent excessive force on the cable at the bend from causing the two cable-bearing assemblies 120 to detach from the wall 130 or experience relative positional shift.

[0067] To achieve separation of strong and weak current, a communication conduit 7 is provided at the top of the support 1 for communication cables to pass through. The diameter of the communication conduit 7 is between 120mm and 200mm; in this design, the diameter is specifically 160mm, allowing the communication cable to be stably placed on the communication conduit 7, achieving physical separation of strong and weak current. Each communication conduit 7 can accommodate more than twelve communication cables. Furthermore, at least one communication conduit 7 is provided; in this design, two communication conduits 7 are preferred, ensuring the laying of more than twenty-four communication cables, meeting most requirements for the number of communication cables. For cable trenches 110 with two cable-bearing assemblies 120, the communication conduit 7 can be installed on one cable-bearing assembly 120 or on both cable-bearing assemblies 120, adapting to different cable trench 110 structures. Notably, the communication conduit 7 can preferably be installed on straight cable-bearing assemblies 120 to ensure normal communication of the communication cables.

[0068] To meet the installation requirements of dedicated cable intermediate joints, a joint support bracket is also provided. This bracket is installed on the open channel 9 and is used to support the cable joint. The design incorporates a rotating cable intermediate joint support bracket to raise the height of the cable intermediate joint, preventing water immersion and reducing potential malfunctions.

[0069] The following is a detailed explanation of the resulting grid-like structure, such as... Figures 5-7 As shown, in one optional embodiment of this application, the mesh structure has two grid points in the horizontal direction and four grid points in the vertical direction. This can be understood as a 2x4 mesh structure, capable of holding eight cables. With two cable-bearing assemblies 120, it can hold sixteen cables. The 2x4 structure is just one specific example; other structures could be 3x4, 4x4, etc. Different cable trench 110 structures require adaptive adjustments to the number of grid points to effectively lay the cables. Furthermore, when the current cable requirement is relatively small, a larger number of grid points can be used to provide space for future cable expansion.

[0070] It should be noted that in some embodiments of this application, the roller 4 and the outer protective wheel 5 may have the same structure. However, in other embodiments, the roller 4 and the outer protective wheel may have different structures, and the bearing capacity of the roller 4 is greater than that of the outer protective wheel 5.

[0071] Specifically, in some embodiments, the load-bearing capacity of the roller 4 is greater than that of the outer sheath 5. This is because the roller 4 is the main component supporting the cable and requires a stronger structure to provide greater support, while the outer sheath 5 only serves as an auxiliary limiting element and can be structurally weakened to save costs. The roller 4 can be made of flame-retardant reinforced PP material, ceramic, steel, etc., while the outer sheath 5 can be made of ordinary elastic material with an insulating layer.

[0072] Preferably, the crossbar 2 is a metal round tube; or, the crossbar 2 includes a flat iron and a round outer tube wrapped around the flat iron. The metal round tube facilitates the rotation of the rolling wheel 4 around it while ensuring smooth rotation, and the structure of using a flat iron combined with a round outer tube can improve the structural strength of the crossbar 2. Using a metal round tube is also less expensive.

[0073] To adapt to the structural requirements of the cable trench 110, the positions of the cable-bearing components 120 are arranged reasonably. Moreover, the cable length is relatively long, and a large number of cable-bearing components 120 are required. When arranged in a straight line, a cable-bearing component 120 is installed every two meters, and each cable-bearing component 120 is arranged in a horizontal straight line. This ensures that all parts of the cable are supported, and this arrangement ensures that each cable-bearing component 120 is subjected to balanced forces, which are neither too large nor too small, and can effectively extend the service life of the cable-bearing components 120.

[0074] To facilitate identification of each cable, the cable roller 4 is marked with a code to identify the cable number supported by the roller 4. The code can be numbers, letters, or other codes. The cables must be placed in a one-to-one correspondence with the codes. This allows operators to accurately locate the corresponding cable when replacing or repairing it, greatly saving search time and improving work efficiency.

[0075] In some embodiments, the horizontal distance between two adjacent outer guard wheels 5 is 100-200 mm, and / or the vertical distance between two adjacent rolling wheels 4 is 100-200 mm. Specifically, the horizontal distance between two outer guard wheels 5 is 150 mm, and the vertical distance between two rolling wheels 4 is 150 mm; or, the horizontal distance between two outer guard wheels 5 is 170 mm, and the vertical distance between two rolling wheels 4 is 170 mm, which can satisfy a cross-sectional area of ​​70-400 mm². 2 Cable laying enables the effective laying of the vast majority of cables.

[0076] To effectively expand the area of ​​the grid points, the outer surface of the rolling wheel 4 is arc-shaped, and / or the outer surface of the outer sheath 5 is arc-shaped. This includes three scenarios: first, the outer surface of the rolling wheel 4 is arc-shaped, and the outer surface of the outer sheath 5 is flat; second, the outer surface of the rolling wheel 4 is flat, and the outer surface of the outer sheath 5 is arc-shaped; third, both the outer surfaces of the rolling wheel 4 and the outer sheath 5 are arc-shaped. During the design process, different design schemes can be selected according to the site conditions and project requirements. Furthermore, since most cables are circular, the area of ​​the grid points is largest when both the outer surfaces of the rolling wheel 4 and the outer sheath 5 are arc-shaped, which most effectively limits the cable and can lock the cable to a certain extent, preventing it from shifting.

[0077] Given that both the outer surfaces of the roller 4 and the outer sheath 5 are arc-shaped, and the arc of the outer surface of the roller 4 is greater than that of the outer surface of the outer sheath 5, the roller 4 is the main component that carries the cable. When the cable is placed on the roller 4 and the arc of the outer surface of the roller 4 is adapted to the cable structure, it can support the cable to the greatest extent. The outer sheath 5 plays a role in limiting and isolating the cable, so the arc of the outer surface of the outer sheath 5 only needs to be appropriate.

[0078] In some embodiments, such as Figures 9-11 As shown, the cable roller 4 includes a steel sleeve 401, an insulating layer 402, and an outer sheath 403. The insulating layer 402 is fitted onto the steel sleeve 401, and the outer sheath 403 is fitted onto the insulating layer 402. The steel sleeve 401 is fitted onto the crossbar 2, which is specifically circular. The diameter of the opening on the steel sleeve 401 needs to be slightly larger than the cross-sectional diameter of the crossbar 2 so that the steel sleeve 401 can ensure that the cable roller 4 can roll smoothly. Since the object it carries is a cable, insulation is very important. The outer sheath 403 is in contact with the cable. The insulating layer 402, placed between the outer sheath 403 and the steel sleeve 401, can effectively insulate against current leakage through the steel sleeve 401, preventing safety accidents caused by cable leakage and improving the safety of the cable-bearing device.

[0079] Preferably, the outer protective layer 403 has a through hole 405, and mud-blocking rubber rings 404 are provided at both the upper and lower ends of the through hole 405. Simultaneously, grooves are formed at both the upper and lower ends of the outer protective layer 403, extending downwards along the outer circumference from the edge of the through hole 405, and the mud-blocking rubber rings 404 are embedded in the grooves to prevent mud and sand from entering and causing blockage. Furthermore, the insulating layer 402 can be ceramic, the outer protective layer 403 can be made of flame-retardant reinforced PP material, the mud-blocking rubber rings 404 can be made of silicone material, the mud-blocking rubber rings 404 are integrally injection molded, and the steel sleeve 401 needs to be hot-dip galvanized on the surface, with a load-bearing capacity of 20 kN / m.

[0080] It is worth mentioning that when installing cables, they should be used sequentially from bottom to top, with priority given to the bottommost grid points. This ensures that the cable-bearing device is subjected to more reasonable stress and is used more reliably and safely.

[0081] In some embodiments, the bracket 1 includes a vertical plate 101, a first horizontal plate 102, and a second horizontal plate 103. The first horizontal plate 102 is vertically connected to the upper end of the vertical plate 101, and the second horizontal plate 103 is vertically connected to the lower end of the vertical plate 101. The vertical plate 101 is fitted and locked to the wall 130, and the second horizontal plate 103 is locked to the ground. The bottom end of the vertical rod 3 is locked to the second horizontal plate 103. The vertical plate 101 is locked to the wall 130 by screws or other fasteners, and the second horizontal plate 103 is also locked to the ground by screws or other fasteners. The vertical plate 101 and the second horizontal plate 103 ensure the stability of the bracket 1 connection. The space between the first horizontal plate 102 and the second horizontal plate 103 is the space for installing the horizontal rod 2. The vertical plate 101, the first horizontal plate 102, and the second horizontal plate 103 are preferably made of steel to ensure that their structural strength meets the requirements.

[0082] For ease of installation and disassembly, the second horizontal plate 103 has threaded holes, and the lower part of the vertical rod 3 has threads that mate with these threaded holes. The vertical rod 3 can rotate relative to the second horizontal plate 103 and thus lock onto it. Installation of the vertical rod 3 involves passing it through the connecting holes of each horizontal rod 2 from top to bottom until the bottom thread abuts against the threaded hole of the second horizontal plate 103, and then tightening it by rotation. Disassembly is performed by reversing these steps.

[0083] To ensure the stability of the bracket 1, the bracket 1 further includes a V-shaped first reinforcing member 104. The top end of the first reinforcing member 104 is installed at the end of the first horizontal plate 102 away from the vertical plate 101, and the two bottom ends of the first reinforcing member 104 are locked to the wall 130. Since the first horizontal plate 102 is suspended except at the end connected to the vertical plate 101, the first reinforcing member 104 is specially provided to prevent the first horizontal plate 102 from deflecting or breaking. Moreover, the first reinforcing member 104 is connected to the wall 130 at both ends, making the first horizontal plate 102 and the entire bracket 1 more stable after connection.

[0084] Preferably, the bracket 1 further includes a second reinforcing member 105, which is vertically connected to the lower end of the second horizontal plate 103 away from the vertical plate 101 and is locked to the ground. To ensure the stability of the bracket 1 on the ground, while fixing it vertically with the second horizontal plate 103, it needs to be reinforced horizontally with the second reinforcing member 105. By setting the second reinforcing member 105, the second horizontal plate 103 will not tilt. By simultaneously setting the first reinforcing member 104 and the second reinforcing member 105, it is possible to effectively prevent the bracket 1 from being pulled away from the side wall of the cable trench 110 during cable dragging.

[0085] For the specific structure of bracket 1, please refer to... Figure 1 As shown, in one specific embodiment of this application, the vertical plate 101, the first horizontal plate 102, and the second horizontal plate 103 are an integral structure, and the bracket 1 is formed by integral bending.

[0086] In another alternative embodiment of this application, reference is made to... Figure 12 As shown, the vertical plate 101 includes two angle irons arranged parallel to each other, the second horizontal plate 103 is a steel plate, and the second horizontal plate 103 is located at the bottom end of the vertical plate 101.

[0087] It is understandable that the first horizontal plate 102 may not be set in this solution if necessary. In this case, the uppermost horizontal bar 2 is used to achieve the function of the first horizontal plate 102.

[0088] This application also provides a cable trench with the cable trench rolling support device as described above. In this solution, the support 1 structure has two types. One type is installed in a pre-installed cable well, which has a bending clearance position 106 at the bottom of the corresponding cable trench 110. The other type is set in the cast cable trench 110, which has a straight bottom edge structure.

[0089] In summary, the cable-bearing device described in this application has the following advantages: First, it distributes the load, reducing the stress on the support 1 and the wall 130, and the cables are arranged neatly and orderly; Second, the roller 4 uses convex contact inside to reduce friction and has a guiding function to prevent foreign objects from affecting it; Third, the open channel 9 left in the middle is smooth, providing sufficient space for construction and maintenance; Fourth, it has a large space to meet the planning and laying of most cables; Fifth, it has a pre-set dedicated communication pipe 7, and the same fiber optic communication cable is laid to achieve separation of strong and weak current.

[0090] In the description herein, it should be understood that the terms "upper," "lower," "left," "right," and other orientations or positional relationships are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used merely for descriptive distinction and have no special meaning.

[0091] In the description of this specification, references to terms such as "an embodiment," "example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0092] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0093] The technical principles of this application have been described above with reference to specific embodiments. These descriptions are merely for explaining the principles of this application and should not be construed as limiting the scope of protection of this application in any way. Based on this explanation, those skilled in the art can readily conceive of other specific embodiments of this application without inventive effort, and these embodiments will all fall within the scope of protection of this application.

Claims

1. A cable trench rolling cable support device, characterized in that, It includes several cable-receiving assemblies, each cable-receiving assembly having several mesh structures for threading cables through, each mesh structure having rolling wheels on its four sides, so that the relative movement friction between the cable and the cable-receiving assembly is rolling friction, and the bottom of the cable-receiving assembly extends to contact the bottom surface of the cable trench; The cable-bearing assembly includes: a bracket, several horizontal bars and several vertical bars. The horizontal bars are spaced apart vertically on the bracket, and the vertical bars are spaced apart horizontally on the horizontal bars. The horizontal bars and vertical bars intersect to form the grid structure. The bottom of the bracket is in contact with the bottom surface of the cable trench, and the vertical bars extend to abut against the bottom of the bracket. The rolling wheel includes a roller and an outer guard wheel. The rollers are evenly spaced on the crossbar, and gaps are formed on both sides of adjacent rollers in the horizontal direction. The crossbar has a connecting hole corresponding to the gap, through which the vertical bar can pass. One end of the vertical bar passes through each of the crossbars from top to bottom. The outer guard wheel is sleeved on the vertical bar and connected between two adjacent crossbars. After installation, the outer guard wheel and the rollers form a grid structure. It also includes a support tube, which is sleeved on the vertical bar between two adjacent horizontal bars and between the bottom horizontal bar and the bracket, for supporting the horizontal bars; The roller and the outer guard have different structures, and the roller has a greater load-bearing capacity than the outer guard. The outer surfaces of both the roller and the outer guard are arc-shaped. The roller and the outer guard have the same curvature, or the roller has a greater curvature than the outer guard. The outer protective wheel is provided on the bearing tube located between two adjacent crossbars; The vertical rod includes a fixed vertical rod that is fixedly connected to the bracket and a movable vertical rod that can be detached relative to the bracket. The vertical rod closest to the side wall of the cable trench forms the fixed vertical rod, and the remaining vertical rods form the movable vertical rod. The bracket includes a vertical plate, a first horizontal plate, and a second horizontal plate. The first horizontal plate is vertically connected to the upper end of the vertical plate, and the second horizontal plate is vertically connected to the lower end of the vertical plate. The vertical plate is fitted and locked to the wall, and the second horizontal plate is locked to the ground. The bottom end of the vertical rod is locked to the second horizontal plate. The second horizontal plate has a threaded hole, and the lower part of the vertical rod has a thread that engages with the threaded hole. The vertical rod can rotate relative to the second horizontal plate and thus lock onto the second horizontal plate.

2. The cable trench rolling cable support device according to claim 1, characterized in that, Several cable-bearing assemblies are respectively provided on both sides of the cable trench, and an open passage for human passage is formed between corresponding pairs of cable-bearing assemblies.

3. The cable trench rolling cable support device according to claim 1, characterized in that, The two cable-bearing assemblies are arranged perpendicularly to each other to form a bend where the cable can bend. A fixing member is provided at the bend, and the fixing member is respectively connected to the top of the two brackets.

4. The cable trench rolling cable support device according to claim 1, characterized in that, The top of the bracket is provided with a communication conduit through which a communication cable can pass.

5. The cable trench rolling cable support device according to claim 2, characterized in that, It also includes a connector support bracket, which is installed on the open channel to support cable connectors.

6. The cable trench rolling cable support device according to claim 1, characterized in that, The crossbar is a metal round tube; or, the crossbar includes a flat iron and a round outer tube wrapped around the flat iron.

7. The cable trench rolling cable support device according to claim 1, characterized in that, The reel is marked with a code to identify the cable number supported by the reel.

8. The cable trench rolling cable support device according to claim 1, characterized in that, The horizontal distance between two adjacent outer protective wheels is 100-200mm, and / or the vertical distance between two adjacent rolling wheels is 100-200mm.

9. The cable trench rolling cable support device according to claim 1, characterized in that, The roller includes a steel sleeve, an insulating layer, and an outer protective layer. The insulating layer is sleeved on the steel sleeve, and the outer protective layer is sleeved on the insulating layer.

10. The cable trench rolling cable support device according to claim 9, characterized in that, The outer protective layer has a through hole, and mud-blocking rubber rings are provided at both the upper and lower ends of the through hole.

11. The cable trench rolling cable support device according to claim 1, characterized in that, The bracket also includes a first reinforcing member in the shape of a "V". The top of the first reinforcing member is installed on the end of the first horizontal plate away from the vertical plate, and the two bottom ends of the first reinforcing member are locked to the wall.

12. The cable trench rolling cable support device according to claim 1, characterized in that, The bracket also includes a second reinforcing member, which is vertically connected to the lower end of the second horizontal plate away from the vertical plate and is locked to the ground.

13. The cable trench rolling cable support device according to claim 1, characterized in that, The vertical plate, the first horizontal plate, and the second horizontal plate are an integral structure, which are formed by bending the entire structure together.

14. The cable trench rolling cable support device according to claim 1, characterized in that, The vertical plate includes two angle irons arranged parallel to each other, the first horizontal plate and / or the second horizontal plate are steel plates, and the first horizontal plate and the second horizontal plate are respectively arranged at both ends of the vertical plate.

15. A cable trench, characterized in that, A cable trench rolling cable carrier device having any one of claims 1-14.

16. The cable trench according to claim 15, characterized in that, The cable trench is a cast-in-place cable trench, and the bottom of the cable-bearing device is a flat bottom edge structure that matches the bottom surface of the cable trench.

17. The cable trench according to claim 15, characterized in that, The cable trench is a prefabricated cable trench, and the bottom of the cable-bearing device has a clearance space corresponding to the bottom of the cable trench.

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