High-voltage cable ladder mounting structure

Abstract

The utility model relates to the technical field of high-voltage cable installation, in particular to a high-voltage cable ladder assembly installation structure. Comprising a cable laying part and a longitudinal cable laying part, the longitudinal cable laying part corresponds to the cable laying part; the longitudinal cable laying part is provided with an assembly structure; the assembling structure comprises a cover plate, a support, a mounting plate and an expansion bolt. The mounting plate is attached to a wall body; an expansion bolt penetrates through the mounting plate and is embedded into the wall body; the bracket is connected with the mounting plate; the bracket is connected with the cover plate to define a cavity for accommodating a cable; the cable is laid in the cavity; the cables are arranged at intervals. In the prior art, the assembly precision is poor, and the cable safety is low. Compared with the prior art, the cable laying device realizes high efficiency and safety of cable laying. The assembly structure is fixed and stable, direct exposure of the cable is avoided, durability and safety of cable laying are improved, and therefore the service life of the cable ladder assembly is remarkably prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to high -voltage cable installation technical field especially relates to a high -voltage cable ladder mounting structure. BACKGROUND

[0002] High -voltage cable ladder is one of indispensable key components in power transmission system, and is mainly used for supporting and protecting cable, and ensures the safe and stable operation of cable. With the rapid development of urban construction and industrial production, the demand of high -voltage cable ladder is increasing, and the mounting structure of ladder is higher, not only guaranteeing the correct laying of cable, but also ensuring its safety and convenience. Therefore, the installation structure of high -voltage cable ladder has important significance for improving the efficiency and safety of power transmission.

[0003] At present, high -voltage cable ladder generally adopts the mode of being fixed on the wall or column. In the specific implementation process, the common installation mode mainly includes direct welding fixation, pre -buried steel plate fixation and expansion bolt fixation mode. Among them, the direct welding fixation mode can provide higher stability, but the welding process has higher requirement for the site environment, and the installation and maintenance are inconvenient;The pre -buried steel plate fixation mode is relatively convenient to install, but it needs to be pre -buried in the early construction, and once the pre -buried position is offset, it will be difficult to adjust;The expansion bolt fixation mode is relatively common, and the expansion bolt is fixed to the wall through the mounting piece. This mode is quick to install and has strong adaptability.

[0004] However, the existing expansion bolt fixation mode in actual application has the problems of low assembly precision and unstable overall structure, especially in the case of long -term use or harsh environment, which can cause insecure fixation and affect the safe laying and maintenance of cable. In addition, most of the existing structures do not have a cavity designed to accommodate the cable, which exposes the cable directly and increases the risk of damage. UTILITY MODEL CONTENTS

[0005] In view of the technical problems of the prior art, the utility model provides a high -voltage cable ladder mounting structure.

[0006] To solve the above technical problems, the utility model provides the following technical scheme:

[0007] A high -voltage cable ladder mounting structure, comprising: cable laying part, longitudinal cable laying part;The longitudinal cable laying part corresponds to the cable laying part;The longitudinal cable laying part is provided with an assembly structure;The assembly structure includes a cover plate, a support, a mounting plate and an expansion bolt;The mounting plate is attached to the wall;The expansion bolt is embedded into the wall through the mounting plate;The support is connected with the mounting plate;The support is connected with the cover plate to enclose a cavity for accommodating the cable;The cable is laid in the cavity;The cables are arranged at intervals.

[0008] Furthermore, the number of the longitudinal cable laying sections is two; the cable laying directions in the two longitudinal cable laying sections are opposite.

[0009] Furthermore, the cable laying portion includes an operating surface and a cable trench; the cable trench matches the longitudinal cable laying portion; and the cable trench surrounds the operating surface.

[0010] Furthermore, the cable trench includes a secondary cable trench and a high-voltage cable trench; the secondary cable trench surrounds the operating surface; and the high-voltage cable trench surrounds the secondary cable trench.

[0011] Furthermore, the cable laying section also includes a high-voltage switch cabinet; the high-voltage switch cabinet is arranged between the secondary cable trench and the high-voltage cable trench.

[0012] Furthermore, there are two high-voltage switch cabinets, and the high-voltage switch cabinets are parallel to each other.

[0013] Furthermore, it also includes maintenance channels; the number of maintenance channels is two; the maintenance channels correspond to the cable laying parts. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 : Overall structure diagram.

[0015] Figure 2 : Partially enlarged image.

[0016] Figure 3 :II cross-section.

[0017] Figure 4 : II-II cross-section.

[0018] Figure 5 : Cross-section view at point A.

[0019] In the figure: 2, longitudinal cable laying part; 21, assembly structure; 211, cover plate; 212, bracket; 213, mounting plate; 214, expansion bolt. DETAILED DESCRIPTION

[0020] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0021] The high-voltage cable ladder mounting structure comprises a cable laying part, two longitudinal cable laying parts 2 and a maintenance channel. The two longitudinal cable laying parts 2 are opposite in direction. The longitudinal cable laying parts 2 correspond to the cable laying part. The longitudinal cable laying parts 2 are provided with an assembly structure 21. The assembly structure 21 comprises a cover plate 211, a bracket 212, a mounting plate 213 and an expansion bolt 214. The mounting plate 213 is attached to the wall. The expansion bolt 214 is embedded in the wall through the mounting plate 213. The bracket 212 is connected to the mounting plate 213. The bracket 212 is connected to the cover plate 211 to enclose a cavity for accommodating cables. The cables are laid in the cavity.

[0022] The cable laying part comprises an operating surface, a cable trench and a high-voltage switch cabinet. The cable trench matches the longitudinal cable laying part 2; the cable trench comprises a secondary cable trench and a high-voltage cable trench. The secondary cable trench surrounds the operating surface. The high-voltage cable trench surrounds the secondary cable trench. The high-voltage switch cabinet is arranged between the secondary cable trench and the high-voltage cable trench. The number of high-voltage switch cabinets is two. The high-voltage switch cabinets are parallel to each other.

[0023] The number of maintenance channels is two. The maintenance channels correspond to the cable laying part.

[0024] Specifically, the mounting plate 213 is arranged on the wall and attached to the wall. The expansion bolt 214 is embedded in the wall through the mounting plate 213 to ensure the stability of the entire structure. The structural features of the expansion bolt 214 can adopt various forms, such as ordinary expansion bolts and high-strength expansion bolts, which can be selected according to actual needs. Ordinary expansion bolts are generally suitable for light to medium load application scenarios, with simple installation and low cost. High-strength expansion bolts are suitable for heavy load application scenarios and have higher bearing capacity and tensile strength. During installation, the connection between the expansion bolt and the wall should be ensured to avoid instability due to loosening during use. The bracket 212 is connected to the mounting plate 213 by welding or bolt connection. The bracket 212 can be a solid tube support or an angle steel support.

[0025] The solid tube support has good torsional resistance and is suitable for occasions that bear a certain torque. The angle steel support has high rigidity and is suitable for occasions that bear large vertical loads. The cover plate 211 is connected to the bracket 212 to enclose a cavity for accommodating cables. The cover plate 211 can be made of different materials according to actual needs, such as steel plates or engineering plastics. Steel plates have good strength and rigidity and are suitable for carrying heavy loads; engineering plastics have good insulation and corrosion resistance and are suitable for humid environments. The cover plate 211 and the bracket 212 are fixed by bolt connection to ensure the reliability and stability of cable laying.

[0026] The cables are laid in the cavity, and each cable is spaced apart to avoid mutual extrusion between the cables, ensuring the safe laying of the cables. Specifically, anti-skid pads can be added to prevent the cables from sliding. The anti-skid pads can be made of rubber material, which has good friction and ensures the stability of the cables. The overall structure is formed by the cooperation between the expansion bolts, mounting plates, supports and cover plates, forming a complete closed cavity, effectively protecting the internal cables and improving the safety of cable laying.

[0027] The operation surface is used for cable installation work by construction personnel, providing a convenient working environment. The cable trench is surrounded around the operation surface, forming a closed space, thereby ensuring the continuity and safety of cable laying. In order to increase the stability and service life of the structure, the operation surface is preferably made of high-strength concrete, which is smooth and easy to lay cables. The cable trench is composed of multiple parts, such as reinforced concrete structure or other materials with sufficient strength.

[0028] The cable trench is divided into secondary cable trench and high-voltage cable trench. The secondary cable trench is surrounded around the operation surface, and the high-voltage cable trench is surrounded outside the secondary cable trench. This layered design allows cables of different voltage levels to be laid simultaneously in the same area, avoiding electromagnetic interference between cables. The cross-sectional area of the primary cable trench is larger than that of the secondary cable trench, so as to better accommodate larger high-voltage cables and maintain sufficient heat dissipation space.

[0029] The high-voltage switch cabinet is arranged between the secondary cable trench and the high-voltage cable trench, and plays a role in power distribution. The number of high-voltage switch cabinets is usually two, and they are arranged in parallel with each other, which can effectively reduce the risk of system paralysis caused by single point failure, and enhance the reliability and stability of the entire power transmission system. In order to ensure that the high-voltage switch cabinet can operate stably for a long time, the shell is usually made of stainless steel material with good corrosion resistance, and the internal circuit elements are also subjected to special protection treatment, so that they can work normally even in a humid environment. In addition, the high-voltage switch cabinet is also equipped with a perfect grounding system to prevent leakage accidents.

[0030] The number of maintenance channels is also two, and they are arranged corresponding to the cable laying part, which is convenient for future inspection and maintenance of cables and related facilities. The two maintenance channels are respectively located on both sides of the cable laying part, and their design not only considers the convenience of daily maintenance work, but also ensures that it does not affect the normal use of the cable trench. A special cover plate is provided at the entrance of the maintenance channel, which is easy to open. The staff only needs to pull it gently to easily open the entrance to the inside of the channel. In addition, the inside of the maintenance channel is also equipped with LED lighting strips, which ensures sufficient light conditions and makes the maintenance work more efficient and smooth.

[0031] The implementation principle of the embodiment is that the assembly structure of the longitudinal cable laying part is designed as a structure of mutually cooperating mounting plate, expansion bolt, support and cover plate, etc., so as to realize efficient and safe cable laying. The fixed and stable assembly structure avoids direct exposure of the cable and improves the durability and safety of the cable laying, thereby significantly improving the service life of the cable ladder.

[0032] Embodiment 2

[0033] The difference between the embodiment and the above-mentioned embodiments is that the number of longitudinal cable laying parts is two, and the cable laying directions in the two longitudinal cable laying parts are opposite. This design improves the structural stability of the ladder and also facilitates separate laying and maintenance of the cable. In specific implementation, a symmetrical structure design can be adopted, and the same laying direction is used inside each longitudinal cable laying part. The two longitudinal cable laying parts are symmetrically arranged, and the overall stability is improved by increasing the support structure. The support structure can be a beam support or a base support.

[0034] The beam support has high rigidity and is suitable for bearing large transverse forces, and the base support has good anti-overturning capacity and is suitable for more complex installation environments. By symmetrically arranging the two longitudinal cable laying parts, even if the cable is unevenly stressed, the structure can remain balanced and prevent the cable ladder from deforming or shifting. This design further improves the safety and stability of the cable laying and ensures the safe operation of the cable.

[0035] The implementation principle of the embodiment is that the two longitudinal cable laying parts are symmetrically arranged, and the same cable laying direction is used inside each laying part, so as to realize balanced and stable cable laying. By increasing the support structure, the rigidity and stability of the overall structure are improved, and the service life and safety of the cable ladder are further improved.

[0036] The specific embodiments described herein are merely illustrative of the spirit of the present application. Those skilled in the art to which the present application belongs can make various modifications or supplements to the described specific embodiments or replace them with similar ways, but will not deviate from the spirit of the present application or exceed the scope defined by the appended claims.

Claims

1. A high voltage cable ladder mounting structure, characterized by: The utility model relates to a cable laying part, longitudinal cable laying part (2); The longitudinal cable laying part (2) corresponds to the cable laying part; The longitudinal cable laying part (2) is provided with an assembly structure (21); The assembly structure (21) includes a cover plate (211), a support (212), a mounting plate (213) and an expansion bolt (214); The mounting plate (213) is attached to the wall body; The expansion bolt (214) is embedded in the wall body through the mounting plate (213); The support (212) is connected to the mounting plate (213); The support (212) is connected to the cover plate (211) to enclose a cavity for accommodating cables; The cables are laid in the cavity; The cables are arranged at intervals. The number of longitudinal cable laying parts (2) is two; 2. A high voltage cable ladder mounting structure according to claim 1, characterized in that: The cable laying directions in the two longitudinal cable laying parts (2) are opposite. The cable laying part includes an operating surface and a cable trench; 3. A high voltage cable ladder mounting structure according to claim 1, characterized in that: The cable trench matches the longitudinal cable laying part (2); The cable trench surrounds the operating surface. The cable trench includes a secondary cable trench and a high-voltage cable trench; 4. A high voltage cable ladder mounting structure according to claim 3, characterised in that: The secondary cable trench surrounds the operating surface; The high-voltage cable trench surrounds the secondary cable trench. The cable laying part further includes high-voltage switch cabinets.

5. A high voltage cable ladder mounting structure according to claim 4, characterised in that: The high-voltage switch cabinets are arranged between the secondary cable trench and the high-voltage cable trench. The number of high-voltage switch cabinets is two; 6. A high voltage cable ladder mounting structure according to claim 5, characterised in that: The high-voltage switch cabinets are parallel to each other. The utility model further includes maintenance channels.

7. A high voltage cable ladder mounting structure according to any one of claims 1 to 6, characterised in that: The number of maintenance channels is two; The maintenance channels correspond to the cable laying part. ​

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