Tank chain cable bridge

Abstract

The utility model provides a kind of tank chain type cable bridge, it is related to cable technical field, including bridge device, first upper pipe plate, first lower pipe plate, bolt, nut, second upper pipe plate, second lower pipe plate, middle end pipe plate and pipe hole etc.;Bridge assembly one, two, three are all by several installation board material head and tail hinged and are connected, with the adjustable fixing structure of two sides first connecting plate material, second connecting plate material and connecting rod, it can be flexibly bent along hinge, break the restriction that traditional integral bridge can only be linearly laid, can be adapted to the corner, height difference and other complex space layout in the scene such as industrial plant, rail transit, without additional customization special-shaped bridge, reduce scene adaptation cost.

Description

Technical Field

[0001] This utility model relates to the field of cable technology, and in particular to a tank chain type cable tray. Background Technology

[0002] In the field of cable technology, cable trays, as key equipment for supporting, protecting, and organizing cables, are widely used in industrial plants, buildings, rail transportation, and other scenarios. Their performance directly affects the stability of cable laying, service life, and ease of subsequent maintenance. With the increasing automation of industry and the growing complexity of electrical equipment, existing cable trays have gradually revealed several shortcomings, making it difficult to meet practical application needs. Specific problems are as follows: Insufficient structural flexibility and poor adaptability: Traditional cable trays are mostly integral or segmented fixed structures, which can only achieve straight-line laying in a single direction and cannot flexibly adjust the route according to the site layout (such as corners, height differences); in addition, the cable tray lacks a layered and zoned regular mechanism. When different specifications (such as diameter and purpose) of cables need to be laid at the same time, cable entanglement and compression are likely to occur, which not only affects the heat dissipation of the cables, but also increases the difficulty of finding the target cable during later maintenance.

[0003] The cable fixing and protection effects are inadequate: Existing cable trays mostly rely on simple components such as cable ties and clamps to fix cables, which are not strong enough. In vibrating environments (such as factory workshops and rail transit lines), cables are prone to friction with the inner wall of the cable tray, resulting in wear of the cable sheath and the risk of leakage. At the same time, most cable trays are not designed with suitable fixing structures for cables of different diameters. Small-diameter cables are prone to loosening and displacement, while large-diameter cables may deform due to over-tight fixing, affecting the stability of signal transmission or power transmission.

[0004] Low installation and maintenance efficiency: The splicing connection method of traditional cable trays is complicated and requires multiple sets of bolts to fix each section. The installation process is time-consuming and labor-intensive. Moreover, when it is necessary to add or replace cables, it is necessary to dismantle part of the cable tray structure or untie a large number of fixing parts. The operation is cumbersome, which not only increases maintenance costs, but may also interfere with the normal operation of surrounding cables.

[0005] Insufficient durability and environmental adaptability: Some cable trays are made of ordinary steel without specific anti-corrosion and anti-rust treatment. In humid, dusty, or corrosive environments (such as chemical workshops or outdoor open-air scenes), they are prone to rust and reduced structural strength, which shortens the service life of the cable trays and increases the frequency and cost of replacement. At the same time, the wear resistance of the cable tray connection parts is poor. After long-term use, wear can easily lead to increased splicing gaps, affecting the overall stability.

[0006] In summary, existing cable trays have significant shortcomings in terms of structural flexibility, cable protection, installation and maintenance, and durability. There is an urgent need for a cable tray with a reasonable structure, strong adaptability, convenient installation, and good protection effect to solve the above-mentioned technical problems and meet the needs of modern industrial scenarios for efficient and safe cable laying. Utility Model Content

[0007] The purpose of this invention is to provide a tank-chain type cable tray in order to solve the above-mentioned problems.

[0008] To address the aforementioned problems, this utility model provides a technical solution: a tank-chain type cable tray, comprising a tray assembly, a first upper tube plate, a first lower tube plate, bolts, nuts, a second upper tube plate, a second lower tube plate, a middle tube plate, and tube holes; the tray assembly is divided into a tray assembly one, a tray assembly two, and a tray assembly three, arranged parallel to each other at intervals; several first upper tube plates are fixedly connected between the upper ends of the tray assembly one and the tray assembly two by bolts and nuts; several first lower tube plates are fixedly connected between the lower ends of the tray assembly one and the tray assembly two by bolts and nuts, and the second lower tube plate corresponds to the first upper tube plate. The inner surfaces of the first upper and lower tube plates are provided with several corresponding tube-laying holes; several second upper tube plates are fixedly connected between the upper ends of the second and third cable tray assemblies by bolts and nuts; several second lower tube plates are fixedly connected between the lower ends of the second and third cable tray assemblies by bolts and nuts; several middle tube-laying plates are fixedly connected between the middle ends of the second and third cable tray assemblies, and the second upper tube plate, the second lower tube plate, and the middle tube-laying plates correspond to each other; the inner surfaces of the second upper and lower tube plates are provided with several tube-laying holes, and the upper and lower ends of the middle tube-laying plates are also provided with several corresponding tube-laying holes.

[0009] Preferably, the cable tray assembly one, cable tray assembly two, and cable tray assembly three have the same structure, including mounting plates, a first connecting plate, a second connecting plate, and connecting rods; there are several mounting plates, which are sequentially hinged together end to end; the two sides of the connection of the mounting plates are respectively provided with a first connecting plate and a second connecting plate, and the first connecting plate and the second connecting plate are connected to the mounting plates by connecting rods; the first upper tube plate, the first lower tube plate, the second upper tube plate, and the second lower tube plate are all fixedly connected between the mounting plates by bolts and nuts; the middle tube plate is fixedly connected between the mounting plates.

[0010] Preferably, there are multiple tube holes, and the diameters of the multiple tube holes are different to accommodate cables of different specifications.

[0011] Preferably, the mounting plate is made of high-strength alloy material, and the alloy material contains corrosion-resistant components, which can improve the rust resistance of the mounting plate and extend the overall service life of the cable tray.

[0012] Preferably, the thickness of the first connecting plate and the second connecting plate is 8-12mm, and the surface of the plates is polished to reduce the friction coefficient of the connecting parts and reduce wear at the hinge of the mounting plates.

[0013] Preferably, the connection points between the connecting rod and the mounting plate, the first connecting plate, and the second connecting plate are provided with elastic washers. The elastic washers are made of nitrile rubber, which can buffer the impact force caused by vibration and enhance the sealing of the connection.

[0014] Preferably, the bolt is a high-strength stainless steel bolt, and the thread surface of the bolt is coated with anti-loosening adhesive. The nut is a self-locking nut. The anti-loosening adhesive and the self-locking nut work together to prevent the bolt and nut from loosening due to vibration during long-term use.

[0015] Preferably, the edges of the first upper tube plate, the first lower tube plate, the second upper tube plate, the second lower tube plate, and the middle tube plate are all rounded with a radius of 2-3 mm to avoid sharp edges scratching the cable sheath.

[0016] Preferably, a silicone anti-slip pad is attached to the inner wall of the cable placement hole. The silicone anti-slip pad has a thickness of 1 to 1.5 mm, which can increase the friction between the cable and the cable placement hole to prevent the cable from sliding, and also avoid the cable from directly contacting the inner wall of the cable placement hole and causing wear.

[0017] The beneficial effects of this utility model are: (1) The structure is flexible and adaptable, meeting the complex laying requirements: The cable tray components one, two and three are all composed of several mounting plates with their ends hinged together. With the adjustable fixing structure of the first connecting plate, the second connecting plate and the connecting rod on both sides, it can be flexibly bent along the hinge, breaking the limitation that the traditional integral cable tray can only be laid in a straight line. It can adapt to the complex spatial layout such as corners and height differences in industrial plants, rail transit and other scenarios, without the need for additional custom-made irregular cable trays, reducing the cost of scenario adaptation.

[0018] (2) Layered and zoned laying, significantly improving the regularity: The upper and lower channels between cable tray components one and two are divided by the first upper tube plate and the second lower tube plate. The two independent areas between components two and three are divided by the second upper tube plate, the middle tube plate and the second lower tube plate. Each tube plate is equipped with multiple specifications of tube holes, which can be laid according to the cable diameter and purpose (such as separating power cables and control cables), avoiding the problems of cable tangling and squeezing in traditional cable trays. At the same time, it improves the heat dissipation efficiency of cables, reduces the performance loss caused by poor heat dissipation, and also provides convenience for quickly locating target cables during later maintenance.

[0019] (3) Precise fixation and anti-displacement, adaptable to multiple cable specifications: The conduit hole is designed with different diameters according to the commonly used cable specifications, which can achieve precise positioning of cables of different sizes, avoiding the problem of small diameter cables loosening and shifting, and large diameter cables being fixed too tightly and deforming; at the same time, a 1-1.5mm thick silicone anti-slip pad is pasted on the inner wall of the conduit hole, which can not only enhance the friction between the cable and the hole wall to prevent slippage, but also isolate the cable from the metal hole wall, avoid the wear of the outer sheath caused by direct friction, reduce the risk of leakage, and ensure the stability of power transmission and signal transmission.

[0020] (4) Edge protection to prevent scratches and detailed design to protect the cable: The edges of the first upper tube plate, the second lower tube plate, the second upper tube plate, the second lower tube plate and the middle tube plate are all rounded with a radius of 2-3mm to eliminate sharp edges. During cable laying, maintenance and threading, the edges can be effectively prevented from scratching the cable sheath, further protecting the integrity of the cable insulation layer and reducing safety hazards.

[0021] (5) Modular connection is easy to install and has high assembly efficiency: The pipe plates between cable tray components (such as the first upper pipe plate, the second lower pipe plate, etc.) are all fixed by bolts and nuts, and the installation plates are spliced ​​by hinges. There is no need for complex welding or customized processing. On-site assembly can be completed simply by screwing in the bolts and nuts. Compared with the traditional cable tray method of fixing multiple sets of bolts in sections, the installation time is greatly shortened, the installation difficulty is reduced, and the manpower input is reduced.

[0022] (6) Easy maintenance without disassembly and minimal maintenance interference: Since the cables are laid independently through the conduit holes in layers and zones, when a cable needs to be added or replaced, there is no need to dismantle the entire cable tray structure or untie a large number of fixed parts. Only the target conduit hole needs to be operated, which avoids interference with the surrounding cables that are operating normally, reduces the risk of downtime during maintenance, reduces maintenance operation steps, improves maintenance efficiency, and reduces long-term operation and maintenance costs.

[0023] (7) Strong durability and environmental adaptability, extending service life: The installation plate is made of high-strength alloy material with added corrosion-resistant components (such as chromium and nickel), which can form a dense oxide protective film in humid, dusty, and corrosive gas environments (such as chemical workshops and outdoor open-air scenes), effectively resisting rust and avoiding the problems of easy rusting and reduced structural strength of traditional ordinary steel cable trays, significantly extending the overall service life of the cable tray and reducing the frequency and cost of later replacement.

[0024] (8) Vibration-resistant and anti-loosening structure, long-lasting stability: Nitrile rubber elastic washers are provided at the connection points between the connecting rod and each plate to buffer the vibration impact force and prevent the connection points from loosening due to rigid collision; the bolts are made of high-strength stainless steel and the threads are coated with anti-loosening glue, which, together with the self-locking nuts, forms a double anti-loosening structure to prevent the bolts and nuts from loosening due to long-term vibration; at the same time, the surfaces of the first connecting plate and the second connecting plate are polished to reduce the coefficient of friction and reduce the wear at the hinge of the installation plate, ensuring the structural stability of the cable tray during long-term use and further extending its service life. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the structure of this utility model.

[0026] Figure 2 This utility model Figure 1 Schematic diagram of the enlarged local structure Figure 1 .

[0027] Figure 3 This utility model Figure 1 Schematic diagram of the enlarged local structure Figure 2 .

[0028] Figure 4 This is a top view of the structure of this utility model.

[0029] Figure 5 This is a schematic diagram of the structure on the right side of this utility model.

[0030] Figure 6 for Figure 3 Schematic diagram of cross-section along the CC direction.

[0031] Figure 7 This utility model Figure 6 A partially enlarged structural diagram.

[0032] Figure 8 for Figure 4 DD-direction sectional view.

[0033] Figure 9 This is a schematic diagram of the main structure of this utility model.

[0034] Figure 10 This utility model Figure 9 A partially enlarged structural diagram.

[0035] 1-Installation plate; 2-First connecting plate; 3-Second connecting plate; 4-Connecting rod; 5-First upper tube plate; 6-First lower tube plate; 7-Bolt; 8-Nut; 9-Second upper tube plate; 10-Second lower tube plate; 11-Middle tube plate; 12-Pipe hole. Detailed Implementation

[0036] like Figures 1 to 10 As shown, this specific embodiment adopts the following technical solution: a tank-chain type cable tray, including a cable tray device, a first upper tube plate 5, a first lower tube plate 6, bolts 7, nuts 8, a second upper tube plate 9, a second lower tube plate 10, a middle tube plate 11, and tube holes 12; the cable tray device is divided into cable tray assembly one 13, cable tray assembly two 14, and cable tray assembly three 15, which are arranged in parallel with each other at preset intervals to form a stable multi-component support structure, providing multiple channels of space for subsequent cable laying; the upper ends of cable tray assembly one 13 and cable tray assembly two 14 are fixedly connected by bolts 7 passing through corresponding mounting holes and screwing into nuts 8. The first upper tube plate 5 is evenly distributed along the length of the cable tray. The first upper tube plate 5 adopts a rectangular plate structure, and its length is adapted to the spacing between the two cable tray components to ensure the structural stability after connection. Several first lower tube plates 6 are also fixedly connected between the lower ends of the cable tray component 13 and the cable tray component 2 14 by bolts 7 and nuts 8. The first lower tube plates 6 correspond one-to-one with the first upper tube plates 5 in the vertical direction, forming a vertical cable laying channel between them to avoid the cables crossing in the vertical direction. Several corresponding tube holes are provided on the inner surfaces (i.e., the surfaces that are close to each other) of the first upper tube plate 5 and the first lower tube plate 6. 12. The conduit hole 12 is a circular through hole used to directly accommodate and limit the cable; several second upper conduit plates 9 are connected between the upper ends of the cable tray assembly 2 14 and cable tray assembly 3 15 using the same bolt 7 and nut 8 fixing method. The structure of the second upper conduit plate 9 is the same as that of the first upper conduit plate 5, and the length is adjusted only according to the distance between cable tray assembly 2 14 and cable tray assembly 3 15; several second lower conduit plates 10 are fixed between the lower ends of the cable tray assembly 2 14 and cable tray assembly 3 15 using the same bolt 7 and nut 8 connection method; the middle of the cable tray assembly 2 14 and cable tray assembly 3 15 (i.e., the middle position between the upper second upper conduit plate 9 and the lower second lower conduit plate 10) Several intermediate cable tray plates 11 are connected by welding or bolts. The second upper cable tray plate 9, the second lower cable tray plate 10 and the intermediate cable tray plate 11 correspond to each other in the vertical direction. Together, they divide the space between the cable tray assembly 2 14 and 3 15 into two independent cable laying areas. Several cable tray holes 12 are provided on the inner surfaces of the second upper cable tray plate 9 and the second lower cable tray plate 10. The upper and lower ends of the intermediate cable tray plate 11 (i.e., the surfaces opposite to the second upper cable tray plate 9 and the second lower cable tray plate 10 respectively) are also provided with several corresponding cable tray holes 12, ensuring that the cables in each laying area can be accurately limited through the cable tray holes 12.

[0037] like Figures 1 to 10As shown, the cable tray assembly 13, cable tray assembly 14, and cable tray assembly 15 all have identical structures, each including a mounting plate 1, a first connecting plate 2, a second connecting plate 3, and a connecting rod 4. There are several mounting plates 1, each with a hinge protrusion and a hinge groove at both ends. Adjacent mounting plates 1 are hinged together end-to-end by the protrusion embedding into the groove, allowing the entire cable tray assembly to flexibly bend along the hinge points to adapt to different laying requirements. On both sides of the connection point of the mounting plate 1 (i.e., the left and right sides of the hinge area), there are first connecting plates 2 and second connecting plates 3. Both the first connecting plates 2 and the second connecting plates 3 are long strips, their length covering the hinge points of multiple adjacent mounting plates 1. Plate 2 and the second connecting plate 3 are connected to the mounting plate 1 after passing through the corresponding connecting holes via connecting rod 4. Connecting rod 4 adopts a cylindrical structure, and its two ends can be fixed by threaded nuts or welding, further enhancing the connection strength at the hinge of mounting plate 1. The first upper tube plate 5, the first lower tube plate 6, the second upper tube plate 9, and the second lower tube plate 10 are all fixedly connected between adjacent mounting plates 1 by bolts 7 passing through the preset holes on the plate and mounting plate 1, and then cooperating with nuts 8, ensuring a stable connection between the tube plate and the cable tray assembly. The middle tube plate 11 is connected between the mounting plates 1 of cable tray assembly 2 14 and cable tray assembly 3 15 by welding or bolting, and its installation height and position are precisely positioned according to the cable laying requirements.

[0038] The number of the tube holes 12 is multiple, and the diameters of the multiple tube holes 12 are designed to be different according to the common cable specifications (such as 5mm, 8mm, 12mm, 15mm, etc.) to adapt to cables of different diameters and different uses (such as control cables, power cables, etc.), so as to realize the classified laying and precise positioning of cables and avoid the problems of entanglement or compression caused by mixed placement of cables of different specifications.

[0039] The mounting plate 1 is made of high-strength alloy material (such as aluminum alloy, titanium alloy, etc.), and corrosion-resistant components (such as chromium, nickel, etc.) are specially added to the alloy material. These components form a dense oxide protective film on the surface of the mounting plate 1, which can effectively improve the rust resistance of the mounting plate 1 in humid, dusty or corrosive environments, thereby extending the overall service life of the cable tray and reducing the cost of later maintenance and replacement.

[0040] The thickness of the first connecting plate 2 and the second connecting plate 3 is designed to be 8-12mm (e.g., 8mm, 10mm or 12mm depending on the load-bearing requirements of the cable tray). This thickness ensures the structural strength of the plate itself without excessively increasing the overall weight of the cable tray. Furthermore, the surface of the plate is precision polished to reduce the surface roughness to a low level (e.g. Ra≤0.8μm), significantly reducing the friction coefficient of the connection. When the mounting plate 1 bends or moves along the hinge, it can reduce the wear between the hinge of the mounting plate 1 and the connecting plate, extending the service life of the connection.

[0041] The connecting parts of the connecting rod 4 with the mounting plate 1, the first connecting plate 2, and the second connecting plate 3 (i.e., the contact points between the connecting rod 4 and each plate) are all equipped with elastic washers. The elastic washers are made of nitrile rubber, which has excellent elasticity and oil resistance. When the cable tray is in a vibrating environment (such as a factory workshop or along a rail transit line), the elastic washers can buffer the impact force caused by vibration through their own deformation, preventing the connecting parts from loosening or being damaged due to rigid collisions. At the same time, the elastic washers fill the gaps in the connecting parts, enhance the sealing of the connection, and prevent dust, moisture, and other impurities from entering the connection and affecting the stability of the connection.

[0042] The bolt 7 is a high-strength stainless steel bolt (such as 304 or 316 stainless steel). The stainless steel material ensures that the bolt 7 has good corrosion resistance and tensile strength. The thread surface of the bolt 7 is uniformly coated with anti-loosening adhesive (such as anaerobic anti-loosening adhesive). The anti-loosening adhesive forms a cured layer at the thread engagement, enhancing the friction between the threads. The nut 8 is a self-locking nut (such as a nylon insert self-locking nut). Its internal nylon ring tightly engages with the thread of the bolt 7 to produce a self-locking effect. Through the dual cooperation of the anti-loosening adhesive and the self-locking nut, the bolt 7 and nut 8 can be effectively prevented from loosening during long-term vibration use, ensuring the durability of the connection between the components.

[0043] The edges of the first upper tube plate 5, the first lower tube plate 6, the second upper tube plate 9, the second lower tube plate 10, and the middle tube plate 11 (including the four edges of the plates and the opening edges of the tube holes 12) are all rounded. The rounding radius is controlled between 2 and 3 mm (e.g., 2 mm for thinner plates and 3 mm for thicker plates). The rounding eliminates the sharp edges of the plates, preventing the sharp edges from scratching the cable sheath during cable laying and maintenance, thus ensuring the insulation performance and safety of the cable.

[0044] The inner wall of the cable placement hole 12 is covered with a silicone anti-slip pad using an adhesive (such as epoxy resin). The thickness of the silicone anti-slip pad is designed to be 1-1.5mm (e.g., 1mm for small-diameter holes and 1.5mm for large-diameter holes). The silicone material has good elasticity and friction. When the cable passes through the cable placement hole 12, the silicone anti-slip pad can increase the friction between the cable and the cable placement hole 12, effectively preventing the cable from sliding and shifting under vibration or external pulling. At the same time, the silicone anti-slip pad isolates the cable from the inner wall of the cable placement hole 12, preventing the cable sheath from directly contacting the metal inner wall of the cable placement hole 12 and causing wear, further protecting the integrity of the cable sheath.

[0045] The usage of this utility model is as follows: When laying cables, firstly, according to the site layout and cable routing requirements, the overall routing (such as straight line, corner, or arc) of the cable tray components 13, 14, and 15 is adjusted through the hinge structure of the mounting plate 1. After adjustment, the angle of the hinged part is fixed by the first connecting plate 2, the second connecting plate 3, and the connecting rod 4. Subsequently, according to the specifications (diameter, application) of the cables, different cables are respectively threaded into the first upper laying pipe plate 5 and the first lower laying pipe plate 6, the second upper laying pipe plate 9, and the middle laying pipe. Inside the corresponding pipe-laying holes 12 of the plate 11, the middle pipe-laying plate 11, and the second lower pipe-laying plate 10, the silicone anti-slip pads on the inner walls of the pipe-laying holes 12 limit and protect the cables. During installation, the anti-loosening structure of the bolts 7 and nuts 8 ensures stable connection between each pipe-laying plate and the cable tray assembly. The corrosion-resistant material of the mounting plate 1 and the elastic washers at the connection points ensure long-term stable use of the cable tray in complex environments. During later maintenance, the cables in a specific pipe-laying hole 12 can be directly inspected or replaced without dismantling the entire structure, greatly improving maintenance efficiency.

[0046] In the description of this utility model, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "other end", "upper", "side", "top", "inner", "front", "center", "both ends", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, 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. Therefore, they should not be construed as limitations on this utility model.

[0047] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., 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 connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0048] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications may be made to this utility model without departing from its spirit and scope. All such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

[0049] The control method of this utility model is to control the device by manually starting and stopping the switch. The wiring diagram of the power element and the supply of power are common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and wiring layout will not be explained in detail.

Claims

1. A tank chain type cable tray, characterized in that: It includes a cable tray assembly, a first upper tube plate (5), a first lower tube plate (6), bolts (7), nuts (8), a second upper tube plate (9), a second lower tube plate (10), a middle tube plate (11), and a tube hole (12). The cable tray device is divided into cable tray assembly one (13), cable tray assembly two (14) and cable tray assembly three (15), which are arranged in parallel with each other at intervals; Several first upper tube plates (5) are fixedly connected between the upper ends of the first cable tray assembly (13) and the second cable tray assembly (14) by bolts (7) and nuts (8). Several first lower tube plates (6) are fixedly connected between the lower ends of the first cable tray assembly (13) and the second cable tray assembly (14) by bolts (7) and nuts (8). The first lower tube plates (6) correspond to the first upper tube plates (5). The inner sides of the first upper tube plate (5) and the first lower tube plate (6) are provided with several corresponding tube holes (12). Several second upper tube plates (9) are fixedly connected between the upper ends of the second (14) and the third (15) of the cable tray assembly by bolts (7) and nuts (8). Several second lower tube plates (10) are fixedly connected between the lower ends of the second (14) and the third (15) of the cable tray assembly by bolts (7) and nuts (8). Several middle-end pipe-laying plates (11) are fixedly connected between the middle ends of the second (14) and the third (15) of the cable tray assembly. The second upper pipe-laying plate (9), the second lower pipe-laying plate (10) and the middle-end pipe-laying plate (11) correspond to each other. The inner surfaces of the second upper tube plate (9) and the second lower tube plate (10) are provided with several tube holes (12), and the upper and lower ends of the middle tube plate (11) are also provided with several corresponding tube holes (12).

2. The tank chain type cable tray according to claim 1, characterized in that: The cable tray assembly one (13), cable tray assembly two (14) and cable tray assembly three (15) have the same structure, including mounting plate (1), first connecting plate (2), second connecting plate (3) and connecting rod (4). The mounting plate (1) consists of several pieces, which are hinged together end to end in sequence; The mounting plate (1) is provided with a first connecting plate (2) and a second connecting plate (3) on both sides of the connection point. The first connecting plate (2) and the second connecting plate (3) are connected to the mounting plate (1) through a connecting rod (4). The first upper tube plate (5), the first lower tube plate (6), the second upper tube plate (9), and the second lower tube plate (10) are all fixedly connected to the mounting plate (1) by bolts (7) and nuts (8); The middle-end pipe plate (11) is fixedly connected between the mounting plates (1).

3. The tank chain type cable tray according to claim 1, characterized in that: The number of the tube holes (12) is multiple, and the diameters of the multiple tube holes (12) are different to accommodate cables of different specifications.

4. The tank chain type cable tray according to claim 2, characterized in that: The mounting plate (1) is made of high-strength alloy material. Corrosion-resistant components are added to the alloy material, which can improve the rust resistance of the mounting plate (1) and extend the overall service life of the cable tray.

5. The tank chain type cable tray according to claim 2, characterized in that: The thickness of the first connecting plate (2) and the second connecting plate (3) is 8-12mm, and the surface of the plates is polished to reduce the friction coefficient of the connecting parts and reduce the wear at the hinge of the mounting plate (1).

6. The tank chain type cable tray according to claim 2, characterized in that: The connection points of the connecting rod (4) with the mounting plate (1), the first connecting plate (2), and the second connecting plate (3) are provided with elastic washers. The elastic washers are made of nitrile rubber, which can buffer the impact force caused by vibration and enhance the sealing of the connection.

7. The tank chain type cable tray according to claim 1, characterized in that: The bolt (7) is a high-strength stainless steel bolt. The thread surface of the bolt (7) is coated with anti-loosening adhesive. The nut (8) is a self-locking nut. The anti-loosening adhesive and the self-locking nut work together to prevent the bolt (7) and the nut (8) from loosening due to vibration during long-term use.

8. The tank chain type cable tray according to claim 1, characterized in that: The edges of the first upper tube plate (5), the first lower tube plate (6), the second upper tube plate (9), the second lower tube plate (10) and the middle tube plate (11) are all rounded with a radius of 2-3 mm to avoid sharp edges scratching the cable sheath.

9. The tank chain type cable tray according to claim 1, characterized in that: The inner wall of the pipe hole (12) is covered with a silicone anti-slip pad. The thickness of the silicone anti-slip pad is 1 to 1.5 mm. It can increase the friction between the cable and the pipe hole (12) to prevent the cable from sliding, and also avoid the cable from directly contacting the inner wall of the pipe hole (12) and causing wear.

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