A riveted cable tray and accessories

Abstract

This utility model discloses a riveted cable tray and accessories, aiming to solve the technical problems of traditional trough-type cable trays requiring on-site cutting and welding of the side plates and bottom plates of the straight U-shaped trough when encountering different angles. Cutting damages the integrity of the bottom plate, and welding affects the respiratory health of workers. The present invention includes a U-shaped trough and a cover plate. The U-shaped trough has a split structure, including a flat bottom plate and side plates. The flat bottom plate and the side plates are fixedly riveted together. The side plates include a first plate body, a first folded edge, and a second folded edge. Both the first folded edge and the second folded edge are perpendicular to the first plate body. The second folded edge is provided with several riveting nuts. The detachable threaded connection between the cover plate and the second folded edge is achieved through the riveting nuts. The cover plate includes a second plate body and a third folded edge. The inner wall of the second plate body abuts against the top surface of the second folded edge.

Description

Technical Field

[0001] This utility model relates to the field of cable tray technology, and in particular to a riveted cable tray and its accessories. Background Technology

[0002] Cable trays are structured cabling systems used to support, protect, and manage power cables, control cables, and communication optical cables. Among them, trough-type cable trays are widely used in places with high requirements for protection and shielding due to their fully enclosed structure.

[0003] When encountering different angles, traditional trough-type cable trays require on-site cutting of the side plates and bottom plates of the straight U-shaped trough to accommodate bends. This method compromises the integrity of the bottom plate and often necessitates welding or bolt fixing. Furthermore, the connection between the existing trough and the cover plate typically uses welded nuts and threads. On one hand, prolonged exposure to the welding environment can lead to the generation of nitrogen oxides that affect workers' respiratory health and are environmentally unfriendly. On the other hand, the traditional bolt fixing method for the cut U-shaped trough is not stable or reliable enough, affecting the service life of the cable tray. Utility Model Content

[0004] The purpose of this utility model is to provide a riveted cable tray and accessories to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A riveted cable tray and accessories, comprising a U-shaped channel and an integrally molded cover plate that matches the U-shaped channel.

[0007] The U-shaped channel has a split structure, including an integral molded flat bottom plate with a Z-shape in the length direction and a consistent width, and integral molded side plates extending vertically upward along the Z-shaped edges on both sides of the flat bottom plate; the flat bottom plate and the side plates are fixedly riveted together.

[0008] The side plate includes a first plate body that matches the side edge of the flat base plate, a first flange that is fixedly riveted to the edge of the flat base plate and disposed on the lower edge of the first plate body, and a second flange that is disposed on the upper edge of the first plate body and abuts against the cover plate; both the first flange and the second flange are perpendicular to the first plate body.

[0009] The second folded edge is evenly provided with a plurality of rivet nuts along its length; the rivet nuts enable a detachable threaded connection between the cover plate and the second folded edge.

[0010] The cover plate includes a second plate that matches the side plate and a third flange extending vertically downward along both sides of the second plate; the inner wall of the second plate abuts against the top surface of the second flange.

[0011] Preferably, the flat base plate has a pre-drilled cable outlet hole, making on-site installation more convenient and eliminating the need for additional on-site drilling that would damage the waterproof and anti-corrosion coating of the flat base plate.

[0012] Preferably, the main body of the side plate includes groove bridging holes at two ports in the length direction, which facilitates the connection and fixation of the ends of adjacent cable tray units during installation.

[0013] Preferably, the rivet nut is either a press-fit nut or a pull-fit nut, and the choice between press-fit nuts and pull-fit nuts is made according to actual needs to increase applicability.

[0014] Preferably, the second plate of the cover plate is provided with a through hole that matches the rivet nut, which facilitates the installation of the cover plate.

[0015] Preferably, the through hole is oblong in shape to improve the fault tolerance rate.

[0016] Compared with the prior art, the riveted cable tray and accessories of this application have the following advantages:

[0017] 1. Improved structural stability:

[0018] (1) By using a split-design U-shaped channel (Z-shaped integrated base plate + side plate) and riveting fixing process, the problem of base plate structure damage caused by traditional on-site cutting is completely avoided. The side plate and the base plate are fixed by riveting the first folded edge to form a rigid connection, which significantly enhances the overall torsional strength and load-bearing capacity and extends the service life of the cable tray.

[0019] (2) The cover plate and the side plate adopt a folded edge nesting structure (the second folded edge and the third folded edge abut against each other), and are connected by the threaded connection of the rivet nut to achieve double mechanical locking, effectively preventing the cover plate from loosening due to vibration and improving the reliability of shielding protection.

[0020] 2. Environmental friendliness and safety optimization:

[0021] Rivet nuts (press riveting / pulling riveting) replace welding nuts. The weld-free design of riveting side plates to bottom plates and bolting cover plates to side plates completely eliminates harmful gases such as nitrogen oxides generated by welding, improves the construction environment, protects personnel health, and conforms to the trend of green manufacturing.

[0022] 3. Enhanced installation efficiency and adaptability:

[0023] (1) The Z-shaped integrated base plate and side plate are prefabricated and only require simple riveting and assembly on site. No cutting or angle adjustment is required, which greatly reduces the installation complexity and labor cost.

[0024] (2) The through hole of the cover plate is designed as an elongated hole, which allows for a certain positional deviation during installation and improves the fault tolerance rate; combined with the detachable threaded connection, it is convenient for later line maintenance or capacity expansion.

[0025] (3) The bottom plate is reserved with cable outlet holes and the side plate ports are pre-set with bridging holes to avoid damage to the structure by opening holes on site, ensure the integrity of waterproof and anti-corrosion, and realize the rapid docking between cable tray units.

[0026] 4. Reduced overall costs:

[0027] (1) The split riveting structure simplifies the production process, is suitable for standardized large-scale manufacturing, and reduces the cost per piece;

[0028] (2) Reduce on-site cutting, welding and other processes, reduce labor and equipment input, and achieve significant comprehensive economic benefits. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0030] Figure 2 This is a structural schematic diagram from another perspective of an embodiment of the present utility model;

[0031] Figure 3 This is an exploded view of the structure of an embodiment of the present utility model;

[0032] Figure 4 This is a schematic diagram of the side plate and the rivet nut in an embodiment of this utility model;

[0033] Figure 5 This is an exploded view of the side plate and riveting nut in an embodiment of this utility model.

[0034] Reference numerals: 1. Flat base plate; 2. Side plate; 21. First plate; 22. First folded edge; 23. Second folded edge; 24. Channel bridging hole; 3. Rivet; 4. Cover plate; 41. Second plate; 42. Third folded edge; 43. Through hole; 5. Riveting nut. Detailed Implementation

[0035] 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 the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0036] Example 1: Foundation structure of riveted cable trays

[0037] like Figure 1-5 As shown, the riveted cable tray includes:

[0038] 1. U-shaped channel:

[0039] Flat base plate 1: Made using a one-piece stamping process, with a continuous Z-shaped structure along its length and a constant width. Riveting positions for connection to the side plates are reserved on both sides of the base plate.

[0040] Side panels 2: symmetrically arranged on both sides of the base plate 1, each including:

[0041] First plate 21: A vertical plate that matches the Z-shaped edge contour of the base plate 1;

[0042] First fold 22: formed by bending horizontally inward along the lower edge of the first plate 21, overlapping with the edge of the base plate 1 and fixed by rivets 3;

[0043] Second fold 23: formed by bending horizontally inward along the upper edge of the first plate 21, with the top surface abutting against the cover plate 4;

[0044] Rivet nuts 5: Multiple rivet nuts 5 are press-fitted at equal intervals along the length direction on the second folded edge 23 of the side plate 2 (press-fit nuts are used in this embodiment).

[0045] 2. Cover plate 4:

[0046] It adopts one-piece bending forming, including:

[0047] Second plate 41: Width matches the spacing between the two side plates 2;

[0048] Third fold 42: Extends vertically downward from both sides of the second plate 41, with the inner wall and the outer side of the second fold 23 of the side plate 2 having a clearance fit.

[0049] The second plate 41 is provided with an elongated through hole 43 aligned with the rivet nut 5.

[0050] Assembly process:

[0051] 1. Overlap the first folded edge 22 of the side plate 2 onto the lower edge of the base plate 1, and fix it by riveting with rivets 3 to form a U-shaped groove;

[0052] 2. Insert the third folded edge 42 of the cover plate 4 into the outside of the second folded edge 23 of the side plate 2, so that the through hole 43 is aligned with the rivet nut 5;

[0053] 3. Use bolts to pass through the through hole 43 and screw in the rivet nut 5 to complete the detachable installation of the cover plate 4.

[0054] Example 2: Implementation of Cable Tray Expansion Function

[0055] Based on the structure of Embodiment 1, the following optional features are further implemented:

[0056] Cable exit hole setting: A circular cable exit hole is punched in the middle of the Z-shaped straight section of the flat base plate 1. The hole diameter is set according to the cable specification.

[0057] Bridged installation: Circular groove bridging holes 24 are opened at both ends of the first plate 21 of the side plate 2. During installation, connectors are used to pass through the bridging holes 24 of adjacent cable tray units to achieve docking.

[0058] Modified rivet nut: Replace the press-fit nut with a pull-fit nut and fix it by pulling on the second fold 23.

[0059] Key points of the implementation plan

[0060] 1. Structural relevance:

[0061] (1) The riveting design of the Z-shaped base plate 1 and the straight side plate 2 ensures that no on-site cutting is required at the corner;

[0062] (2) The third fold 42 of the cover plate 4 and the second fold 23 of the side plate 2 form a nested structure to enhance the sealing performance.

[0063] 2. Process feasibility:

[0064] (1) All components (base plate 1, side plate 2, cover plate 4) are integrally formed by standard sheet metal stamping / bending;

[0065] (2) The rivet nut 5 is prefabricated by press riveting or pull riveting process after the side plate 2 is bent.

[0066] 3. Installation advantages:

[0067] (1) The oblong hole 43 allows for slight adjustment of the bolt in the length direction, thus solving the hole position deviation caused by machining tolerance;

[0068] (2) Pre-fabricated cable outlet holes and bridging holes 24 to avoid damage to the anti-corrosion coating caused by on-site drilling.

[0069] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A riveted cable tray and its accessories, characterized in that: Includes a U-shaped channel and a one-piece molded cover plate that matches the U-shaped channel; The U-shaped channel has a split structure, including a one-piece molded flat bottom plate with a Z-shape in the length direction and a consistent width, and one-piece molded side plates extending vertically upward along the Z-shaped edges on both sides of the flat bottom plate; the flat bottom plate and the side plates are fixedly riveted together. The side plate includes a first plate body that matches the side edge of the flat base plate, a first flange that is fixedly riveted to the edge of the flat base plate and disposed on the lower edge of the first plate body, and a second flange that is disposed on the upper edge of the first plate body and abuts against the cover plate; both the first flange and the second flange are perpendicular to the first plate body. The second folded edge is evenly provided with a plurality of rivet nuts along its length; the rivet nuts enable a detachable threaded connection between the cover plate and the second folded edge. The cover plate includes a second plate that matches the side plate and a third flange extending vertically downward along both sides of the second plate; the inner wall of the second plate abuts against the top surface of the second flange.

2. The riveted cable tray and accessories according to claim 1, characterized in that: The flat base plate has a pre-drilled cable outlet hole.

3. The riveted cable tray and accessories according to claim 1, characterized in that: The main body of the side plate includes slot bridging holes located at two ports along its length.

4. A riveted cable tray and accessories according to claim 1, characterized in that: The rivet nut is selected from either a press-fit nut or a pull-fit nut.

5. A riveted cable tray and accessories according to claim 1, characterized in that: The second plate of the cover plate is provided with a through hole that matches the rivet nut.

6. A riveted cable tray and accessories according to claim 5, characterized in that: The through hole is oblong in shape.

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