Weather-resistant bridge formed by compression molding

Abstract

The utility model relates to the technical field of cable bridges, in particular to a compression-molded weather-resistant bridge, which comprises an upper bridge, a lower bridge, a plurality of limiting components and a positioning component, and is characterized in that the lower bridge is slidably mounted below the upper bridge; the limiting assemblies are arranged on the two sides of the upper bridge and the two sides of the lower bridge, and every two corresponding limiting assemblies are used in cooperation to rapidly limit and fix the adjacent upper bridge and the lower bridge; the positioning assemblies are arranged on one side of the upper bridge frame and one side of the lower bridge frame, the corresponding positioning assemblies are matched with each other, and the upper bridge frame and the lower bridge frame are tightly attached to each other and are positioned and installed. Compared with the prior art, the problems that in the prior art, a traditional bridge is low in installation efficiency and poor in outdoor climate annular adaptability are solved.

Description

Technical Field

[0001] This utility model relates to the field of cable tray technology, and in particular to a molded weather-resistant cable tray. Background Technology

[0002] Cable trays are structural systems used to support, protect, and manage cables or pipes. They are widely used in construction, power, communications, and industrial facilities. Their main function is to ensure neat, safe, and reliable cable arrangement, and to facilitate future maintenance or expansion. Weather-resistant cable trays are those that can work stably for a long time in outdoor or harsh environments, resisting the effects of natural factors (such as sunlight, rain, temperature differences, and corrosion). These cable trays, through special materials, processes, or coatings, have stronger anti-aging, anti-corrosion, and high and low temperature resistance properties, making them suitable for open-air or harsh environments.

[0003] In the prior art, Chinese patent document CN212323622U, entitled "Energy-Saving and Weather-Resistant Molded Reinforced Cable Tray," proposes an integrated cabling system that adds power supply and information transmission functions, becoming a modular and highly flexible information transmission channel within or between buildings. It allows voice equipment, data equipment, switching equipment, and various control devices to be connected to information management systems, and also enables these devices to connect to external communication networks. However, in practical applications, installation efficiency is low; assembling a single cable tray requires multiple people and specialized tools, and bolts are prone to falling off during high-altitude operations. Furthermore, the joints of ordinary spliced ​​cable trays are prone to water seepage and dust accumulation, making it difficult to meet environmental requirements with varying climatic intensities. Utility Model Content

[0004] In view of this, the purpose of this utility model is to propose a molded weather-resistant cable tray to solve the problems of low installation efficiency and poor adaptability to outdoor climate in the existing traditional cable tray.

[0005] To achieve the above objectives, this utility model provides a molded weather-resistant cable tray, including an upper cable tray, a lower cable tray, multiple limiting components and positioning components, wherein the lower cable tray is slidably installed below the upper cable tray;

[0006] Limiting components are provided on both sides of the upper cable tray and the lower cable tray. Two corresponding limiting components work together to quickly limit and fix the adjacent upper cable tray and the lower cable tray.

[0007] Positioning components are disposed on one side of the upper cable tray and the lower cable tray. Corresponding positioning components cooperate with each other to tightly fit the upper cable tray and the lower cable tray for positioning and installation.

[0008] Preferably, the limiting component includes a housing, which is fixedly installed on one side of the upper bridge and the lower bridge. A limiting block is fixedly installed on one side of the housing. A limiting groove is fixedly formed inside the housing on one side of the limiting block. A movable block is rotatably connected inside the limiting groove. A lever is fixedly connected to one side of the movable block. A connecting plate is fixedly installed on the outer side of the housing on one side of the limiting groove. An elastic pull rod is rotatably installed on the connecting plate. The other end of the elastic pull rod is rotatably connected to the lever.

[0009] Preferably, the positioning component includes positioning strips, which are fixedly installed on both sides above the lower cable tray. Positioning grooves are fixedly provided on the upper cable tray at corresponding positions of the positioning strips. The outer surfaces of both the upper and lower cable trays are coated with a corrosion-resistant coating.

[0010] Preferably, the upper cable tray and the lower cable tray are designed as separate units, and both the upper cable tray and the lower cable tray are arc-shaped plate structures, with an overall elliptical cross-section when they are combined.

[0011] Preferably, the positioning strip and the positioning groove are positioned to correspond to each other and are used in conjunction. An extended cover plate is provided on one side of the positioning groove on the upper bridge frame. That is, when the upper bridge frame and the lower bridge frame are combined, the extended cover plate on the upper bridge frame will cover the connection position between the upper bridge frame and the lower bridge frame.

[0012] Preferably, the limiting block is a rod-shaped part with a pointed side away from the outer shell and a rectangular side closer to the outer shell.

[0013] Preferably, the limiting components are located at the center of both sides of the upper and lower cable trays, and the limiting components on one side of two adjacent upper and lower cable trays cooperate with each other, that is, the positions of the limiting blocks and the limiting grooves correspond to each other.

[0014] Preferably, one side of the lever is fixedly connected to the movable block, and the middle part is rotatably connected to the outer casing via the elastic pull rod, that is, the lever is rotatably installed inside the outer casing.

[0015] The beneficial effects of this utility model are:

[0016] 1. This molded weather-resistant cable tray achieves rapid positioning and mechanical self-locking of the cable tray connection through the mortise and tenon joint between the limiting block and the limiting groove, combined with the rotation locking mechanism of the movable block. The pointed design of the limiting block enables quick blind operation alignment, the rectangular locking part provides excellent lateral pull-out resistance, and the elastic tie rod maintains a constant preload through the lever system formed by the connecting plate and the lever, ensuring no loosening under vibration. The rotation stroke of the movable block in the limiting groove is precisely controlled, ensuring both locking reliability and avoiding excessive wear. This structure greatly improves the installation time of a single cable tray section.

[0017] 2. This molded weather-resistant cable tray uses positioning strips that not only serve as installation references but also work in conjunction with the arc-shaped plate structure to form a bending resistance system. After the positioning strips are embedded in the positioning grooves, the shear strength at the joints of the upper and lower cable trays is improved. The elliptical closed section, combined with the internal corrugated reinforcing ribs and the extended cover plate with a flanged structure, together with the corrosion-resistant coating, forms excellent protection. This design improves the load-bearing capacity of the cable tray without increasing the wall thickness, and the elliptical structure also helps it better adapt to environments such as wind and sand. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the limiting component structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the planar structure of the limiting component of this utility model;

[0022] Figure 4 This utility model Figure 1 Enlarged schematic diagram of the structure at point A in the middle.

[0023] The diagram is marked as follows:

[0024] 1. Upper cable tray; 2. Lower cable tray; 3. Positioning strip; 4. Positioning groove; 5. Housing; 6. Limiting block; 7. Toggle lever; 8. Limiting groove; 9. Movable block; 10. Elastic tie rod; 11. Connecting plate. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.

[0026] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar words used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0027] like Figures 1 to 4 As shown, a molded weather-resistant cable tray includes an upper cable tray 1, a lower cable tray 2, multiple limiting components and positioning components, wherein the lower cable tray 2 is slidably installed below the upper cable tray 1.

[0028] Furthermore, such as Figures 1 to 3As shown, the limiting components are installed on both sides of the upper cable tray 1 and the lower cable tray 2. The corresponding two limiting components work together to quickly limit and fix the adjacent upper cable tray 1 and lower cable tray 2. The components include a housing 5, which is fixedly installed on one side of the upper cable tray 1 and the lower cable tray 2. A limiting block 6 is fixedly installed on one side of the housing 5. A limiting groove 8 is fixedly opened inside the housing 5 on one side of the limiting block 6. A movable block 9 is rotatably connected inside the limiting groove 8. A lever 7 is fixedly connected to one side of the movable block 9. A connecting plate 11 is fixedly installed on the outside of the housing 5 on one side of the limiting groove 8. An elastic pull rod 10 is rotatably installed on the connecting plate 11. The other end of the elastic pull rod 10... The limiting block 6 is a rod-shaped part with a pointed side away from the outer shell 5 and a rectangular side closer to the outer shell 5. The limiting components are located in the middle of both sides of the upper bridge 1 and the lower bridge 2. The limiting components on one side of two adjacent upper bridge 1 and lower bridge 2 cooperate with each other, that is, the positions of the limiting block 6 and the limiting groove 8 correspond to each other. One side of the lever 7 is fixedly connected to the movable block 9, and the middle part is rotatably connected to the outer shell 5 through the elastic pull rod 10. That is, the lever 7 is rotatably installed inside the outer shell 5. The limiting block 6 and the limiting groove 8 adopt a plug-in fit. After alignment, a light push can complete the fixation of adjacent bridges without additional tools or bolts. The lever 7 is connected to the elastic pull rod 10. 0 provides a reset force, allowing for quick unlocking with a simple flick, enabling rapid assembly and disassembly. Limit block 6 employs a pointed insertion + rectangular locking design, ensuring smooth insertion and preventing lateral loosening after locking (similar to a mortise and tenon structure). Movable block 9 rotates within limit groove 8, working in conjunction with the tension of elastic rod 10 to ensure no wobbling after locking. The limiting components are positioned precisely in the center of both sides of the cable tray to ensure balanced force distribution, and adjacent cable trays can be connected in any direction. The outer shell 5 is integrally fixed to the cable tray, avoiding additional assembly errors and improving overall integrity. Limit block 6 and limit groove 8 must be strictly aligned for insertion to prevent misassembly. Elastic rod 10 provides constant preload to prevent accidental disengagement. The lever 7 features an exposed design. The operation is intuitive, and the limiting components can be maintained or replaced without disassembling the cable tray. When using the cable tray, first place the two adjacent lower cable trays 2 in parallel, and insert the limiting block 6 into the limiting groove 8. At this time, the structure below the limiting block 6 pushes the movable block 9 to rotate, so that a parallel channel is formed in the limiting groove 8, and the limiting block 6 is accommodated in the temporal part of the limiting groove 8. When the limiting block 6 is completely inside the limiting groove 8, the movable block 9 loses its limiting obstruction and rebounds under the action of the elastic pull rod 10, locking the limiting component for limiting. When disassembly and maintenance are required, lift the lever 7 to force the movable block 9 to rotate and allow the channel inside the limiting groove 8 to be re-formed, so that the limiting component can be quickly disassembled.

[0029] Furthermore, such as Figure 1 as well as Figure 4As shown, positioning components are installed on one side of the upper cable tray 1 and the lower cable tray 2. Corresponding positioning components cooperate with each other to tightly fit and position the upper cable tray 1 and the lower cable tray 2. Positioning components include positioning strips 3, which are fixedly installed on both sides of the upper cable tray 2. Positioning grooves 4 are fixedly formed on the upper cable tray 1 at corresponding positions to the positioning strips 3. The outer surfaces of both the upper cable tray 1 and the lower cable tray 2 are coated with a corrosion-resistant coating. The upper cable tray 1 and the lower cable tray 2 are separate designs, each being an arc-shaped plate structure. When they are combined, the overall cross-section is elliptical. The positioning strips 3 and the positioning grooves 4 are positioned correspondingly and cooperate with each other. Positioning grooves 3 and 4 are located on the upper cable tray 1 at corresponding positions to the positioning grooves 4. An extended cover plate is provided on the side. When the upper cable tray 1 and the lower cable tray 2 are combined, the extended cover plate on the upper cable tray 1 will cover the connection position between the upper cable tray 1 and the lower cable tray 2. The concave-convex fit design of the positioning strip 3 and the positioning groove 4 achieves precise positioning and ensures the assembly consistency of the upper cable tray 1 and the lower cable tray 2. The curvature matching design of the arc plate structure makes the elliptical cross section after the combination perfectly closed. The plug-in structure of the positioning strip 3 and the positioning groove 4 enables quick installation with alignment and locking. The extended cover plate forms triple protection, physically covering the connection seam and forming a continuous protective layer with the corrosion-resistant coating. The elliptical cross section has a significantly improved bending strength compared with the traditional rectangular cable tray. The positioning strip 3 also acts as a reinforcing rib, improving the local stiffness of the lower cable tray 2.

[0030] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention (including the claims) is limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0031] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A molded weather-resistant cable tray, characterized in that, include: The cable tray includes an upper cable tray (1), a lower cable tray (2), multiple limiting components and positioning components, wherein the lower cable tray (2) is slidably installed below the upper cable tray (1); Limiting components are provided on both sides of the upper cable tray (1) and the lower cable tray (2). The two corresponding limiting components work together to quickly limit and fix the adjacent upper cable tray (1) and the lower cable tray (2). Positioning components are provided on one side of the upper cable tray (1) and the lower cable tray (2). The corresponding positioning components cooperate with each other to tightly fit the upper cable tray (1) and the lower cable tray (2) for positioning and installation.

2. The weather-resistant cable tray molded according to claim 1, characterized in that, The limiting component includes a housing (5), which is fixedly installed on one side of the upper bridge (1) and the lower bridge (2). A limiting block (6) is fixedly installed on one side of the housing (5). A limiting groove (8) is fixedly opened inside the housing (5) on one side of the limiting block (6). A movable block (9) is rotatably connected inside the limiting groove (8). A lever (7) is fixedly connected on one side of the movable block (9). A connecting plate (11) is fixedly installed on the outer side of the housing (5) on one side of the limiting groove (8). An elastic pull rod (10) is rotatably installed on the connecting plate (11). The other end of the elastic pull rod (10) is rotatably connected to the lever (7).

3. The weather-resistant cable tray molded according to claim 2, characterized in that, The positioning component includes a positioning strip (3), which is fixedly installed on both sides above the lower bridge frame (2). A positioning groove (4) is fixedly opened on the upper bridge frame (1) at the corresponding position of the positioning strip (3). The outer surfaces of the upper bridge frame (1) and the lower bridge frame (2) are coated with a corrosion-resistant coating.

4. The weather-resistant cable tray molded according to claim 3, characterized in that, The upper bridge (1) and the lower bridge (2) are designed as separate units. Both the upper bridge (1) and the lower bridge (2) are arc-shaped plate structures, and the overall cross-section is elliptical when they are combined.

5. A molded weather-resistant cable tray according to claim 3, characterized in that, The positioning strip (3) and the positioning groove (4) are positioned in a corresponding manner and are used together. An extended cover plate is provided on one side of the positioning groove (4) on the upper bridge (1). That is, when the upper bridge (1) and the lower bridge (2) are combined, the extended cover plate on the upper bridge (1) will cover the connection position between the upper bridge (1) and the lower bridge (2).

6. The weather-resistant cable tray molded according to claim 3, characterized in that, The limiting block (6) is a rod-shaped part with a pointed side away from the outer shell (5) and a rectangular side closer to the outer shell (5).

7. A molded weather-resistant cable tray according to claim 3, characterized in that, The limiting components are located at the center of both sides of the upper cable tray (1) and the lower cable tray (2). The limiting components on one side of two adjacent upper cable trays (1) and lower cable trays (2) cooperate with each other, that is, the positions of the limiting block (6) and the limiting groove (8) correspond to each other.

8. A molded weather-resistant cable tray according to claim 3, characterized in that, One side of the lever (7) is fixedly connected to the movable block (9), and the middle part is rotatably connected to the outer shell (5) through the elastic pull rod (10), that is, the lever (7) is rotatably installed inside the outer shell (5).

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