Electromechanical engineering top wiring bridge

Abstract

The utility model discloses an electromechanical engineering top wiring bridge which comprises a bridge box and a box cover detachably installed at the upper end of the bridge box, hoisting assemblies are installed on the two sides of the bridge box, a plurality of U-shaped grooves are formed after the bottom of the bridge box is bent, through holes are transversely formed in the U-shaped grooves formed by bending in a penetrating mode, and through holes are formed in the U-shaped grooves formed by bending in a penetrating mode. A crosspiece rod is transversely inserted through the through hole; according to the technical scheme, the bridge box formed by bending is adopted, the bending resistance of the bridge box is enhanced through the U-shaped grooves, the distribution distance of the hoisting assemblies can be increased, installation is easier, meanwhile, the cables can be separated through the design of the U-shaped grooves, cable stacking is avoided, and when the number of the cables is large and the number of the U-shaped grooves is insufficient, the cables can be installed more conveniently. And two-layer arrangement can be carried out by inserting the crosspiece rods, so that the cable accommodating quantity is increased, and the device is simple in structure, low in cost and suitable for popularization and application.

Description

Technical Field

[0001] This utility model relates to a cable tray for overhead wiring in electromechanical engineering. Background Technology

[0002] In the field of electromechanical engineering, cable trays are essential facilities for supporting and protecting cables and wires, and are widely used in buildings, industrial plants, and other locations. Traditional cable trays typically employ a straight-plate structure, consisting of a tray box and a removable cover, and are fixed to the top using a lifting assembly. However, this structure has the following problems:

[0003] Insufficient bending resistance: Traditional cable trays are typically made of thin stainless steel or galvanized steel sheets, resulting in limited structural strength. When the spacing between hangers is large (e.g., exceeding 1.5–2 meters), the middle of the cable tray is prone to bending deformation under the weight of the cables, affecting overall stability and safety. Therefore, existing technologies usually limit the hanger spacing to a smaller range, leading to complex installation and increased material costs.

[0004] Cable stacking issues: Traditional cable trays typically have an open internal design, making it easy for cables to stack together. This leads to poor heat dissipation and may even damage the cable insulation layer due to friction or compression, affecting its service life. Furthermore, when multiple cables are laid in parallel, the lack of effective isolation measures increases the difficulty of management and maintenance.

[0005] Based on the above problems, we designed a top cable tray for electromechanical engineering with stronger bending resistance and the ability to separate cables. Utility Model Content

[0006] The purpose of this utility model is to provide a top cable tray for electromechanical engineering with stronger bending resistance and the ability to separate cables.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A cable tray for top wiring in electromechanical engineering includes a cable tray box and a cover detachably installed on the upper end of the cable tray box. Lifting components are installed on both sides of the cable tray box. The bottom of the cable tray box is bent to form multiple U-shaped grooves. Through holes are transversely inserted in the U-shaped grooves formed by bending, and horizontal bars are transversely inserted through the through holes.

[0009] Preferably, an arc-shaped convex transition surface is formed between the tops of two adjacent U-shaped grooves, and the cables placed in the cable tray box slide into the U-shaped grooves via the transition surface.

[0010] Preferably, a drainage hole is vertically penetrating the bottom of the U-shaped groove.

[0011] Preferably, the hoisting assembly includes a rotating sleeve, a connecting plate, a hoisting rod, a support nut, and expansion bolts. Bolts are fixed on both sides of the bottom of the cable tray box. The rotating sleeve is clamped by the bolts. The connecting plate is welded to the outer wall of the rotating sleeve. An assembly hole is vertically penetrating the surface of the connecting plate. The hoisting rod passes through the assembly hole. A first connecting plate is welded to the upper end of the hoisting rod. The first connecting plate is fixed to the building by the expansion bolts. The support nut is threadedly connected to the hoisting rod and is supported at the bottom of the connecting plate.

[0012] Preferably, the diameter of the mounting hole is larger than the diameter of the lifting rod, and the upper end of the support nut is machined with a tapered guide portion that fits into the mounting hole.

[0013] Preferably, the rotating sleeve can rotate coaxially along the bolt.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] In this technical solution, a bent cable tray box is used. Multiple U-shaped grooves are used to enhance the bending resistance of the cable tray box, thereby increasing the distribution spacing of the hoisting components and making installation easier. At the same time, the U-shaped groove design can also separate cables and avoid cable stacking. When there are many cables and the number of U-shaped grooves is insufficient, a second layer arrangement can be made by inserting horizontal bars to increase the number of cables that can be accommodated. This device has a simple structure, low cost, and is suitable for widespread use. Attached Figure Description

[0016] Figure 1 This is a cross-sectional view of the device;

[0017] Figure 2 This is a magnified view of point A;

[0018] Figure 3 This is a cross-sectional view of the supporting nut. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please refer to Figure 1As shown, this utility model is a top-mounted cable tray for electromechanical engineering, including a cable tray box 1 and a cover 2 detachably installed on the upper end of the cable tray box 1. Lifting components 3 are installed on both sides of the cable tray box 1. The bottom of the cable tray box 1 is bent to form multiple U-shaped grooves 121. Through holes 131 are transversely penetrating the U-shaped grooves 121 formed by bending. Horizontal guide bars 141 are transversely inserted through the through holes 131.

[0021] In traditional straight-plate cable trays, the spacing between the hangers is usually 1.5 to 2 meters. This is because when the span is large, the middle of the cable tray is subjected to greater stress. Since the cable tray is made of thin stainless steel or galvanized steel plate, the middle will be noticeably bent when the span is large and the number of cables is large.

[0022] The difference between this device and the existing technology is that by bending the cable tray to form multiple U-shaped grooves 121, its bending resistance is increased, which allows the spacing of the hoisting components 3 to be increased to about 3 meters, making the installation simpler.

[0023] Secondly, the U-shaped groove 121 can achieve isolation between cables and avoid cable stacking.

[0024] When multiple cables need to be stacked in the same U-shaped groove 121, the upper and lower cables can be separated by inserting the crossbar 141.

[0025] The spacing between the horizontal bars 141 is 30-50cm.

[0026] See Figure 1 As shown, an arc-shaped upward convex transition surface 122 is formed between the tops of two adjacent U-shaped grooves 121, and the cables placed in the cable tray box slide into the U-shaped groove through the transition surface.

[0027] The transition surface 122 is formed by bending. The transition surface 122 can guide the cable to slide in and facilitate the positioning of the cable.

[0028] See Figure 1 As shown, a drain hole 123 is vertically penetrating the bottom of the U-shaped groove 121.

[0029] In the event of a ceiling leak, water entering the cable tray box can be drained through the drain hole 123. There are multiple drain holes spaced 20-30cm apart. When the drain hole 123 is blocked by a cable, water in the cable tray box 1 will leak out from the joint of adjacent cable tray boxes.

[0030] See Figure 1 and Figure 2As shown, the hoisting assembly 3 includes a rotating sleeve 31, a connecting plate 32, a hoisting rod 33, a support nut 34, and expansion bolts 35. Bolts 144 are fixed on both sides of the bottom of the cable tray box 1. The rotating sleeve 31 is clamped by the bolts 144. The connecting plate 32 is welded to the outer wall of the rotating sleeve 31. A mounting hole (not shown) is vertically penetrating the surface of the connecting plate 32. The hoisting rod 33 passes through the mounting hole. A first connecting plate 36 is welded to the upper end of the hoisting rod 33. The first connecting plate 36 is fixed to the building by the expansion bolts 35. The support nut 34 is threadedly connected to the hoisting rod 33 and supports the bottom of the connecting plate 32. The rotating sleeve 31 can rotate coaxially along the bolts 144.

[0031] In the above technical solution, the rotating sleeve 31 can rotate coaxially along the lifting rod 33. This coaxial rotation can change the distance between the lifting rod 33 and the cable tray box 1, thereby selecting a suitable installation position according to the roof conditions and avoiding fire pipes, pre-buried lines, etc.

[0032] See Figure 2 and Figure 3 As shown, the diameter of the mounting hole is larger than the diameter of the lifting rod 33, and a tapered guide portion 341 is machined at the upper end of the support nut 34, which fits into the mounting hole.

[0033] In the above technical solution, the design of the guide part 341 is adopted, which can avoid interference between the threaded part of the lifting rod 33 and the assembly hole when rotating the support nut 34, and ensure that the position of the connecting plate 32 can be smoothly adjusted when rotating the support nut 34.

[0034] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0035] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A cable tray for overhead wiring in electromechanical engineering, characterized in that, The cable tray box includes a cover that is detachably installed on the upper part of the cable tray box. Lifting components are installed on both sides of the cable tray box. The bottom of the cable tray box is bent to form multiple U-shaped grooves. Through holes are transversely inserted through the U-shaped grooves formed by bending, and horizontal bars are inserted transversely through the through holes.

2. The overhead cable tray for electromechanical engineering as described in claim 1, characterized in that, An arc-shaped convex surface is formed between the tops of two adjacent U-shaped grooves, through which cables placed in the cable tray box slide into the U-shaped groove.

3. The overhead cable tray for electromechanical engineering as described in claim 1, characterized in that, A drainage hole is vertically penetrating the bottom of the U-shaped groove.

4. The overhead cable tray for electromechanical engineering as described in claim 1, characterized in that, The hoisting assembly includes a rotating sleeve, a connecting plate, a hoisting rod, a support nut, and expansion bolts. Bolts are fixed to both sides of the bottom of the cable tray box. The rotating sleeve is clamped by the bolts. The connecting plate is welded to the outer wall of the rotating sleeve. An assembly hole is vertically penetrating the surface of the connecting plate. The hoisting rod passes through the assembly hole. A first connecting plate is welded to the upper end of the hoisting rod. The first connecting plate is fixed to the building by the expansion bolts. The support nut is threadedly connected to the hoisting rod and supports the bottom of the connecting plate.

5. The overhead cable tray for electromechanical engineering as described in claim 4, characterized in that, The diameter of the assembly hole is larger than the diameter of the lifting rod, and the upper end of the support nut is machined with a tapered guide portion that fits into the assembly hole.

6. The overhead cable tray for electromechanical engineering as described in claim 4, characterized in that, The rotating sleeve can rotate coaxially along the bolt.

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