Anti-seismic cable bridge quick installation structure
By combining positioning blocks and elastic metal plates on the cable tray, the protective cover can be quickly installed and removed, solving the problem of inconvenient installation and removal of the protective cover, improving the installation efficiency and seismic performance of the cable tray, and simplifying the cable inspection and maintenance process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN ZHONGDIAN HUAWANG ELECTRIC POWER ENG INSTALLATION CO LTD
- Filing Date
- 2025-08-29
- Publication Date
- 2026-07-24
AI Technical Summary
The protective covers of existing earthquake-resistant cable trays are inconvenient to install and remove, which affects the efficiency of subsequent cable inspection and maintenance.
Multiple positioning blocks are set at the bottom of the protective cover and are inserted into the positioning groove on the inner wall of the top of the cable tray. Combined with the design of the elastic metal plate and the sliding plate, the cover and the cable tray can be quickly positioned and locked. The limit blocks can be quickly released by the sliding cooperation of the sliding plate, simplifying the disassembly and assembly process of the cover.
It improves the installation efficiency and stability of protective covers, enhances seismic performance, simplifies inspection and maintenance processes, and improves the convenience and efficiency of cable maintenance.
Smart Images

Figure CN224555134U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of cable tray technology, and in particular relates to a rapid installation structure for earthquake-resistant cable trays. Background Technology
[0002] Cable trays are structured devices used to support and protect cables. They are widely used in electrical wiring systems in industries such as construction, power, communications, chemical, and metallurgy. They provide an orderly laying path for cables, protecting them from the influence of the external environment and facilitating cable installation, maintenance, and repair. Seismic-resistant cable trays are special cable trays that, based on conventional cable trays, have undergone structural optimization, connection reinforcement, and seismic-resistant accessory design. They can effectively resist vibration and impact during earthquakes, ensuring the stability and safety of the cable laying system.
[0003] In the existing technology, during the use of seismic-resistant cable trays, they need to be installed in designated locations. In order to improve the protection of the cables inside the cable tray during the seismic buffering process, protective covers are installed on the top of the cable tray to prevent cables from spilling out and to ensure that the cables can be placed stably inside the cable tray. However, the protective covers need to be tightly connected to ensure the protective effect, which makes it inconvenient to disassemble and install the protective covers during subsequent cable inspection and maintenance, thus affecting the efficiency of subsequent inspection and maintenance. Utility Model Content
[0004] In view of this, the purpose of this utility model is to propose a rapid installation structure for earthquake-resistant cable trays, which solves the problem of inconvenient disassembly and assembly of protective covers in the prior art, thereby affecting the efficiency of subsequent cable inspection and maintenance.
[0005] To achieve the above objectives, the technical solution of this utility model is implemented as follows:
[0006] A rapid installation structure for an earthquake-resistant cable tray includes a cable tray with a protective cover plate on its upper surface. Multiple positioning blocks are fixedly connected to the bottom of the protective cover plate. Multiple positioning grooves are formed on the inner wall of the top of the cable tray, and the positioning blocks are respectively inserted into the positioning grooves. A cavity is formed inside each positioning block, and an elastic metal plate is fixedly connected to the inner wall of the cavity. A sliding plate is slidably disposed within the cavity, and the elastic metal plate is pressed against the side wall of the sliding plate. A limiting block is fixedly connected to the side of the sliding plate opposite to the elastic metal plate. A limiting groove is formed on the inner wall of the cable tray, and the cavity has an opening, allowing some of the limiting blocks to be inserted and secured within the limiting groove through the opening.
[0007] Furthermore, the cable tray has multiple ventilation holes on its side wall.
[0008] Furthermore, the sidewalls of the cable tray located on both sides of the plurality of ventilation holes are configured as arc surfaces.
[0009] Furthermore, the inner wall of the cable tray is fixedly connected with anti-slip buffer rubber pads, and there are multiple anti-slip buffer rubber pads, which are spaced apart along the length of the cable tray.
[0010] Furthermore, a metal elastic pressure plate is fixedly connected to the inner wall of the top of the cable tray, and the cross-sectional profile of the metal elastic pressure plate is arc-shaped.
[0011] Furthermore, a pull rope is fixedly connected to the connection between the skateboard and the elastic metal plate. The end of the pull rope away from the skateboard passes through the positioning block and the protective cover plate, and extends to the top of the protective cover plate.
[0012] Furthermore, a handle is fixedly connected to one end of the pull rope located above the protective cover.
[0013] Through the above technical solution, by setting multiple positioning blocks at the bottom of the protective cover and engaging with multiple positioning slots on the inner wall of the cable tray top, rapid positioning and assembly between the cover and the cable tray are achieved, thereby improving the installation efficiency and stability of the overall structure. Simultaneously, a cavity is set inside each positioning block, with an elastic metal plate fixedly connected to the inner wall of the cavity. This cavity, along with a sliding plate and a limiting block on one side, allows the limiting block to be inserted into the limiting slot on the inner wall of the cable tray through the cavity opening during installation. The continuous pressure of the elastic metal plate on the sliding plate creates a reliable limiting and locking effect, preventing the cover from loosening or falling off during vibration and enhancing its seismic performance. Furthermore, the sliding engagement of the sliding plate within the cavity allows for rapid release of the limiting block, enabling simple disassembly and assembly of the protective cover during cable inspection or maintenance, significantly improving the convenience and efficiency of cable maintenance. Therefore, this rapid installation structure achieves a stable connection of the protective cover while also meeting the practical needs of rapid installation and disassembly. Attached Figure Description
[0014] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:
[0015] Figure 1 This is a schematic diagram of the structure of the earthquake-resistant cable tray quick-installation structure provided in the exemplary embodiments of this disclosure;
[0016] Figure 2 This is a partial cross-sectional view of the earthquake-resistant cable tray quick-installation structure provided in an exemplary embodiment of this disclosure;
[0017] Figure 3 for Figure 2 Enlarged structural diagram of part A in the middle section;
[0018] Figure 4 for Figure 3 A schematic diagram of the internal structure of the positioning block.
[0019] Explanation of reference numerals in the attached figures:
[0020] 1. Cable tray; 101. Positioning groove; 2. Ventilation hole; 3. Anti-slip buffer rubber pad; 4. Metal elastic pressure plate; 5. Protective cover plate; 6. Positioning block; 601. Cavity; 7. Slide plate; 8. Limiting block; 9. Elastic metal plate; 10. Pull rope; 11. Handle. Detailed Implementation
[0021] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0022] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0023] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0024] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.
[0025] In the specific embodiments provided in this disclosure, a quick-installation structure for an earthquake-resistant cable tray 1 is provided, with reference to... Figures 1 to 4 As shown, the quick-installation structure of the earthquake-resistant cable tray 1 includes: a cable tray 1, a protective cover plate 5 placed on the upper surface of the cable tray 1, a plurality of positioning blocks 6 fixedly connected to the bottom of the protective cover plate 5, a plurality of positioning grooves 101 opened on the inner wall of the top of the cable tray 1, a plurality of positioning blocks 6 respectively inserted into the plurality of positioning grooves 101, a cavity 601 opened inside the positioning block 6, an elastic metal plate 9 fixedly connected to the inner wall of the cavity 601, a sliding plate 7 slidably arranged in the cavity 601, the elastic metal plate 9 pressed tightly on the side wall of the sliding plate 7, a limiting block 8 fixedly connected to the side of the sliding plate 7 away from the elastic metal plate 9, a limiting groove opened on the inner wall of the cable tray 1, and the cavity 601 having an opening so that some of the limiting blocks 8 are inserted tightly into the limiting groove through the opening.
[0026] Through the above technical solution, by setting multiple positioning blocks 6 at the bottom of the protective cover 5 and engaging with multiple positioning grooves 101 on the inner wall of the top of the cable tray 1, rapid positioning and assembly between the cover and the cable tray are achieved, thereby improving the installation efficiency and stability of the overall structure. Simultaneously, a cavity 601 is provided inside each positioning block 6, with an elastic metal plate 9 fixedly connected to the inner wall of the cavity 601, and a sliding slide plate 7 and a limiting block 8 on one side are used. When the cover is installed, the limiting block 8 is inserted through the opening of the cavity 601 into the limiting groove on the inner wall of the cable tray 1. Inside, the continuous pressing force of the elastic metal plate 9 on the sliding plate 7 forms a reliable limiting and locking effect, preventing the cover from loosening or falling off during vibration and enhancing the shock resistance. In addition, the sliding cooperation of the sliding plate 7 in the cavity 601 enables the rapid release of the limiting block 8, so that the installation and removal of the protective cover 5 can be completed with simple operation when inspecting or maintaining cables, which significantly improves the convenience and efficiency of cable maintenance. Therefore, this quick installation structure not only achieves a stable connection of the protective cover 5, but also takes into account the actual needs of quick installation and removal.
[0027] In some implementations, reference Figure 1 and Figure 2 As shown, the cable tray 1 has multiple ventilation holes 2 on its side wall. That is, the cable tray 1 serves as a load-bearing and protective frame for cables. The multiple ventilation holes 2 on its side wall allow for internal air circulation, preventing heat accumulation caused by long-term operation of cables and reducing the risk of fire. The arc design on both sides of the ventilation holes 2 reduces stress concentration and enhances the structural strength of the cable tray side wall.
[0028] Meanwhile, the side walls of the cable tray 1 on both sides of the multiple ventilation holes 2 are all configured as arc surfaces. Specifically, the inner walls of the cable tray on both sides of the ventilation holes 2 are all set as arc surface structures. Compared with the traditional right-angle boundary design, this arc surface structure can effectively disperse stress under stress, reduce stress concentration, improve the structural strength and deformation resistance of the cable tray under vibration environment, and further enhance the overall seismic stability.
[0029] In some implementations, reference Figure 1 and Figure 2 As shown, the inner wall of the cable tray 1 is fixedly connected with anti-slip buffer rubber pads 3. There are multiple anti-slip buffer rubber pads 3, which are spaced apart along the length of the cable tray 1. Specifically, the installation of the rubber pads provides good buffer protection during cable operation, effectively reducing the direct effect of vibration or impact on the cable, reducing the risk of cable wear, and thus improving the stability and safety of the overall system in earthquakes or complex environments.
[0030] In addition, the rubber material has good anti-slip properties, which can prevent cables from sliding or shifting inside the cable tray, further maintaining the orderliness of cable laying and reducing signal interference or damage caused by cable displacement.
[0031] In some implementations, reference Figure 1 and Figure 2 As shown, a metal elastic pressure plate 4 is fixedly connected to the inner wall of the top of the cable tray 1. The cross-sectional profile of the metal elastic pressure plate 4 is arc-shaped. This metal elastic pressure plate 4 can effectively limit and constrain the cables in the internal cavity of the cable tray, making the cables arranged more tightly and neatly in the cable tray, effectively preventing the cables from slipping, shaking, or other unstable phenomena during normal operation or vibration. When encountering earthquakes or other forms of mechanical impact, the metal elastic pressure plate 4 can absorb and buffer the impact energy through its good elastic deformation characteristics, reducing the longitudinal impact force directly acting on the cable, thereby preventing the cable from being damaged in insulation or displaced due to shaking, and improving the overall cable tray system's impact resistance and safety in vibration environments.
[0032] In some implementations, reference Figures 1 to 4As shown, a pull rope 10 is fixedly connected to the connection between the skateboard 7 and the elastic metal plate 9. The end of the pull rope 10 away from the skateboard 7 passes through the positioning block 6 and the protective cover plate 5, and extends to the top of the protective cover plate 5. At the same time, a handle 11 is fixedly connected to the end of the pull rope 10 above the protective cover plate 5. Specifically, the protective cover plate 5 is quickly fixed by the cooperation of the positioning block 6 and the limiting block 8. Pulling the handle 11 can unlock it. No screwdriver or other tools are needed throughout the process, which greatly improves the efficiency of installation and maintenance. In order to quickly remove the protective cover plate 5, a pull rope 10 is fixedly connected to the connection between the skateboard 7 and the elastic metal plate 9. The end of the pull rope 10 away from the skateboard 7 passes through the positioning block 6 and the protective cover plate 5, and extends to the top of the protective cover plate 5. A handle 11 is fixedly connected to the end of the pull rope 10 above the protective cover plate 5.
[0033] When it is necessary to open the protective cover 5, pull the handle 11 to drive the slide plate 7 to compress the elastic metal plate 9 through the pull rope 10, so that the limit block 8 is disengaged from the limit groove, and the protective cover 5 can be quickly removed for cable maintenance.
[0034] Meanwhile, to ensure that the force transmission between the pull rope 10 and the slide plate 7 is unimpeded, the interior of the elastic metal plate 9 is provided with through holes, so that the pull rope 10 can pass through smoothly without affecting the sliding of the slide plate 7 and the driving effect of the limit block 8, thereby achieving efficient synergy of functions under the premise of compact structure.
[0035] For example, the protective cover 5 covers the upper surface of the cable tray 1, serving to prevent dust, water, and foreign objects from falling in. The positioning block 6 at the bottom of the protective cover 5 is inserted into the positioning groove 101 at the top of the cable tray, forming a preliminary positioning. The elastic metal plate 9 inside the cavity 601 of the positioning block 6 pushes the sliding plate 7 to move, so that the limiting block 8 is inserted into the limiting groove of the cable tray 1, achieving rigid fixation between the protective cover 5 and the cable tray 1. An opening is provided on the cavity 601 to allow the limiting block 8 to pass through the cavity 601 and be inserted into the limiting groove of the cable tray 1 smoothly. The sliding plate 7 is slidably disposed inside the cavity 601. Meanwhile, refer to... Figure 4 As shown, the cross-sectional area of the slide plate 7 is larger than the cross-sectional area of the opening of the cavity 601, which can prevent the limiting block 8 fixed to the slide plate 7 from slipping out of the cavity 601. The limiting block 8 has a rounded corner on the side away from the slide plate 7, which can be affected by the downward pressure during the installation of the positioning block 6 so that the limiting block 8 can be more smoothly retracted into the cavity 601 under the influence of the positioning block 6, making it easier for the limiting block 8 to be inserted into the limiting groove under the influence of the elastic thrust of the elastic metal plate 9.
[0036] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A rapid installation structure for earthquake-resistant cable trays, comprising a cable tray (1), characterized in that: A protective cover plate (5) is placed on the upper surface of the cable tray (1). A plurality of positioning blocks (6) are fixedly connected to the bottom of the protective cover plate (5). A plurality of positioning grooves (101) are opened on the inner wall of the top of the cable tray (1). A plurality of positioning blocks (6) are respectively inserted into the plurality of positioning grooves (101). A cavity (601) is opened inside the positioning block (6). An elastic metal plate (9) is fixedly connected to the inner wall of the cavity (601). A sliding plate (7) is slidably arranged in the cavity (601). The elastic metal plate (9) is pressed against the side wall of the sliding plate (7). A limiting block (8) is fixedly connected to the side of the sliding plate (7) away from the elastic metal plate (9). A limiting groove is opened on the inner wall of the cable tray (1). The cavity (601) has an opening so that a portion of the limiting block (8) is inserted into the limiting groove through the opening.
2. The earthquake-resistant cable tray quick-installation structure according to claim 1, characterized in that: The cable tray (1) has multiple ventilation holes (2) on its side wall.
3. The earthquake-resistant cable tray quick-installation structure according to claim 2, characterized in that: The sidewalls of the cable tray (1) located on both sides of the plurality of ventilation holes (2) are all configured as arc surfaces.
4. The earthquake-resistant cable tray quick-installation structure according to claim 1, characterized in that: The inner wall of the cable tray (1) is fixedly connected with anti-slip buffer rubber pads (3), and there are multiple anti-slip buffer rubber pads (3), which are spaced apart along the length of the cable tray (1).
5. The earthquake-resistant cable tray quick-installation structure according to claim 1, characterized in that: The cable tray (1) has a metal elastic pressure plate (4) fixedly connected to the inner wall of its top end. The cross-sectional profile of the metal elastic pressure plate (4) is arc-shaped.
6. The earthquake-resistant cable tray quick-installation structure according to claim 1, characterized in that: A pull rope (10) is fixedly connected to the connection between the slide plate (7) and the elastic metal plate (9). The end of the pull rope (10) away from the slide plate (7) passes through the positioning block (6) and the protective cover plate (5) and extends to the top of the protective cover plate (5).
7. The earthquake-resistant cable tray quick-installation structure according to claim 6, characterized in that: The pull rope (10) is fixedly connected to a handle (11) at one end above the protective cover plate (5).