An assembled cable trough

Abstract

The application discloses an assembled cable channel and relates to the technical field of cable laying, which comprises a hoisting support mechanism, the hoisting support mechanism comprises a fan-shaped support disc, three hangers installed on the fan-shaped support disc, a steering connecting mechanism installed on the fan-shaped support disc, the steering connecting mechanism comprises a steering groove set, the steering groove set comprises a lower circular-arc groove, a middle circular-arc groove and an upper circular-arc groove which can relatively rotate around the same axis, a wiring mechanism installed on the steering connecting mechanism, the wiring mechanism comprises wiring teeth and layered teeth, the wiring teeth are used for neatly separating cables at cable inlet and outlet ends, and the layered teeth are used for layered wiring of internal cables according to formed turning angles. The application utilizes relative rotation combination among the lower circular-arc groove, the middle circular-arc groove and the upper circular-arc groove, and only one set of universal structures can form 30-degree, 60-degree and 90-degree cable turning spaces, so that fine arrangement and management of the cables at turning positions are realized.

Description

Technical Field

[0001] This invention relates to the field of cable laying technology, and in particular to an assembled cable trough. Background Technology

[0002] Cable trenches, as the main load-bearing structure for laying cables in electrical engineering, most commonly include cable trays, which are widely used in power distribution and signal transmission systems in construction, industry, and transportation. Bends are an indispensable part of cable tray installation, and their structural design directly affects the quality of cable laying, operational safety, and service life.

[0003] Currently, trough-type cable trays typically use prefabricated bend fittings for assembly at bends. To accommodate different turning requirements, various bend angles are needed on-site, such as 30-degree, 60-degree, and 90-degree bends. This "one angle corresponds to one bend" approach has many drawbacks: the wide variety of fittings increases production, procurement, and inventory management costs.

[0004] Furthermore, existing bend structures often lack effective wiring management design. When multiple cables of different thicknesses need to be laid in a single cable tray, they often become mixed together at bends. Not only are the thick and thin cables arranged haphazardly, but more seriously, the thin cables are easily deformed by the thick cables. The stacking of cables causes heat to accumulate and is difficult to dissipate, accelerating insulation aging and creating safety hazards.

[0005] Therefore, in order to improve the versatility and wiring standardization of prefabricated cable trays, this invention provides a prefabricated cable tray. Summary of the Invention

[0006] The purpose of this invention is to solve the problems existing in the prior art and to propose an assembled cable trough.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a prefabricated cable trough, comprising: a hoisting support mechanism, including a fan-shaped support plate and three hangers installed on the fan-shaped support plate.

[0008] The steering connection mechanism is mounted on a sector-shaped support plate and includes a steering groove assembly, which includes a lower circular arc groove, a middle circular arc groove, and an upper circular arc groove that can rotate relative to each other around the same axis.

[0009] The cabling mechanism includes cabling teeth and layering teeth mounted on the steering connection mechanism.

[0010] The lower, middle, and upper circular arc grooves have the same curvature but different diameters, and are nested together in sequence. They are combined by relative rotation to form different turning angle spaces. The wiring teeth neatly separate the cables at the cable entry and exit ends, and the layer teeth are set according to the formed turning angle to perform layered wiring of the internal cables.

[0011] In the aforementioned assembled cable trough, a fixed platform is fixed at the center of the sector-shaped support plate. Two of the three hangers are fixed hangers, and the third is a movable hanger. The movable hanger is slidably installed on the sector-shaped support plate via a sliding seat, and its support position is adjusted according to the turning angle after the steering connection mechanism is adjusted.

[0012] In the aforementioned assembled cable trough, the lower, middle, and upper circular arc grooves all have an arc of 30 degrees and their diameters decrease sequentially, and they are concentrically connected. By rotating relative to each other around the same axis, they are combined to form cable turning spaces of 30 degrees, 60 degrees, or 90 degrees.

[0013] In the aforementioned assembled cable trough, the rotation axes of the lower, middle, and upper circular arc grooves are concentric with the center of the fan-shaped support plate. The middle of the lower, middle, and upper circular arc grooves are all provided with an installation groove 1, and the fan-shaped support plate is provided with three installation grooves 2 in a circumferential manner.

[0014] In the aforementioned assembled cable trough, two wiring teeth are provided, which are installed radially on the lower and upper circular arc grooves respectively, and located at the cable inlet and outlet ends.

[0015] In the above-mentioned assembled cable trough, the wiring teeth include an upper movable part and a lower fixed part. A slot group 1 for the cable to pass through is opened on the side of the upper movable part and the lower fixed part that are close to each other. The diameter of the slot group 1 gradually increases as it moves away from the rotation axis of the lower arc groove and the upper arc groove.

[0016] In the aforementioned assembled cable trough, the lower fixed part is fixed to the corresponding lower arc groove and upper arc groove, one end of the upper movable part is engaged with the corresponding lower arc groove and upper arc groove, and the other end of the upper movable part is engaged with the fixed platform.

[0017] In the aforementioned assembled cable trough, there are multiple layered teeth that are adapted to mounting slot one and mounting slot two. The upper part of the layered teeth has a stepped structure, and the top wall of the layered teeth has a slot group two corresponding to slot group one. The lower part of the layered teeth has a locking hole.

[0018] The aforementioned assembled cable trough also includes a rotary locking mechanism for locking the steering connection mechanism and the layered teeth. The rotary locking mechanism includes a rotating seat that is rotatably mounted on the center of the bottom wall of the sector-shaped support plate by a torsion spring. A circular arc segment is fixedly mounted on the rotating seat, and the circular arc segment is adapted to the locking hole.

[0019] The aforementioned assembled cable trough also includes mounting bases. Mounting bases are provided at both the inlet end of the lower arc groove and the outlet end of the upper arc groove for fixed connection with the straight general-purpose cable trough by bolts.

[0020] Compared with existing technologies, the advantages of this invention are: it enables multi-angle universal adjustment, significantly reducing the number of accessory specifications; it optimizes cable arrangement and layout, improving heat dissipation performance and wiring quality; and it ensures support stability and reliability at different angles.

[0021] 1. By designing the steering connection mechanism as three concentrically interlocking lower, middle, and upper circular arc grooves with different diameters and 30-degree arcs, a single universal structure can create cable turning spaces of 30, 60, and 90 degrees using the relative rotational combination of these three grooves. This replaces the traditional method of preparing multiple bends at different angles separately, significantly reducing the types and specifications of accessories required for on-site inventory, lowering production costs and inventory management difficulties, while improving installation flexibility and adapting to on-site adjustments for non-standard angles.

[0022] 2. Through the coordinated design of wiring teeth and layering teeth in the cabling mechanism, refined arrangement and management of cables at bends are achieved. On the one hand, wiring teeth ensure that each cable at the entry and exit points is clearly separated and neatly arranged; on the other hand, layering teeth guide thinner cables to higher positions and thicker cables to lower positions, forming layered cabling. This "thinner inside, thicker outside; higher inside, lower outside" layout not only avoids mutual compression and entanglement of thick and thin cables at bends, but also facilitates the effective dissipation of heat during cable operation, significantly improving the operational safety and service life of the cables.

[0023] 3. The hoisting support mechanism adopts a movable hanger design, which can flexibly adjust the support position according to the turning angle after the steering connection mechanism is adjusted, ensuring that the entire cable trough is always in a stable and reliable suspended support state regardless of the change in turning angle. Furthermore, the rotary locking mechanism, through the rotating seat, drives the circular arc segment to simultaneously pass through the locking holes of each layer of teeth, which can lock the relative positions of the lower, middle, and upper circular arc grooves, as well as multiple layered teeth, in one go. Operation is simple and quick, and the locking is firm and reliable, effectively preventing angle loosening due to vibration or other reasons during use. Attached Figure Description

[0024] The specific embodiments of the present invention will be further described in detail below with reference to the accompanying drawings, wherein:

[0025] Figure 1 A schematic diagram of the structure that forms a 30-degree turning space.

[0026] Figure 2 for Figure 1 Another perspective structural diagram.

[0027] Figure 3 This is a schematic diagram of the hoisting support mechanism.

[0028] Figure 4 for Figure 3 Another perspective structural diagram.

[0029] Figure 5 This is a partial structural diagram of the steering connection mechanism and the wiring mechanism.

[0030] Figure 6 This is a partial structural exploded view of the steering connection mechanism.

[0031] Figure 7 This is a schematic diagram of the layered tooth structure.

[0032] Figure 8 A schematic diagram of the structure that forms a 60-degree turning space.

[0033] Figure 9 A schematic diagram of the structure that forms a 90-degree turning space.

[0034] In the diagram: 1. Lifting support mechanism; 11. Fan-shaped support plate; 12. Hanger; 13. Sliding seat; 14. Fixed platform; 2. Steering connection mechanism; 21. Steering groove group; 211. Lower arc groove; 212. Middle arc groove; 213. Upper arc groove; 22. Mounting groove one; 23. Mounting groove two; 3. Wiring mechanism; 31. Wiring teeth; 311. Upper movable part; 312. Lower fixed part; 32. Layered teeth; 33. Locking hole; 4. Rotary locking mechanism; 41. Rotating seat; 42. Circular arc segment; 5. Mounting seat. Detailed Implementation

[0035] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] Reference Figures 1 to 2A prefabricated cable trough for carrying cables at bends includes a hoisting support mechanism 1, a turning connection mechanism 2, and a cabling mechanism 3. The hoisting support mechanism 1 suspends the entire cable trough under a floor slab or beam. The hoisting support mechanism 1 includes a sector-shaped support plate 11 and three hangers 12 mounted on the sector-shaped support plate 11. The turning connection mechanism 2 is mounted on the sector-shaped support plate 11 and enables the cable to bend. The cabling mechanism 3 is mounted on the turning connection mechanism 2 and includes cabling teeth 31 and layering teeth 32. The cabling mechanism 3 is used to neatly arrange and layer the cables passing through the bends.

[0037] Reference Figures 1 to 4 A fixed platform 14 is fixedly installed at the center of the sector-shaped support plate 11. Two of the three hangers 12 are fixed hangers. One fixed hanger is fixedly installed at the center of the sector-shaped support plate 11 via the fixed platform 14, and the other fixed hanger is fixedly connected to the edge of the arc-shaped side wall of the sector-shaped support plate 11. The third hanger 12 is a movable hanger. This movable hanger is slidably installed on the arc-shaped side wall of the sector-shaped support plate 11 via a sliding seat 13. Its position can be adjusted by sliding along the arc-shaped edge of the sector-shaped support plate 11, thereby adjusting its support point position according to the turning angle adjusted by the subsequent steering connection mechanism 2, ensuring stable and reliable support at different turning angles.

[0038] It should be noted that the sliding seat 13 and the arc-shaped sidewall corresponding to the sector support plate 11 can be locked together by a pin.

[0039] Reference Figure 1 , Figure 5 and Figure 6 The steering connection mechanism 2 includes a steering groove group 21, which includes a lower arc groove 211, a middle arc groove 212, and an upper arc groove 213. The lower arc groove 211, the middle arc groove 212, and the upper arc groove 213 are all arc-shaped groove structures with the same arc (30 degrees in this embodiment), but different diameters. Specifically, the lower arc groove 211 has the largest diameter, followed by the middle arc groove 212, and the upper arc groove 213 has the smallest diameter. The three are arranged concentrically in sequence and can rotate relative to each other around the fixed platform 14 (the axis of the fixed platform 14 is concentric with the center of the fan-shaped support plate 11).

[0040] By combining the relative rotations of the three components, different cable turning spaces can be formed: when the lower circular arc groove 211, the middle circular arc groove 212, and the upper circular arc groove 213 completely overlap (e.g., Figure 1 As shown), a 30-degree turning space is formed; when the upper circular arc groove 213 overlaps with the middle circular arc groove 212 and staggers and separates with the lower circular arc groove 211, a 60-degree turning space is formed (as shown). Figure 8(As shown); when the lower circular arc groove 211, the middle circular arc groove 212, and the upper circular arc groove 213 are all staggered, a 90-degree turning space is formed (as shown). Figure 9 (As shown). This replaces the traditional method of preparing multiple bends at different angles separately, significantly reducing the types and specifications of accessories to be stocked on-site, lowering production costs and inventory management difficulties, while improving installation flexibility and adapting to on-site adjustments for non-standard angles.

[0041] It should be noted that wiring terminals are respectively set on both sides of the relative rotating contact surfaces of the lower circular arc groove 211, the middle circular arc groove 212 and the upper circular arc groove 213, and are connected by soft copper braided tape to ensure that the grounding is always conductive no matter how it is adjusted, thus ensuring electrical continuity and the overall grounding safety of the cable tray.

[0042] Reference Figure 1 , Figure 3 and Figure 5 Two wiring teeth 31 are provided, which are installed radially on the lower arc groove 211 (located at the cable inlet end) and the upper arc groove 213 (located at the cable outlet end). Each wiring tooth 31 includes an upper movable part 311 and a lower fixed part 312. The lower fixed part 312 is fixed to the corresponding lower arc groove 211 or upper arc groove 213. One end of the upper movable part 311 is engaged with the corresponding lower arc groove 211 or upper arc groove 213, and the other end is engaged with the fixed platform 14. The top wall of the fixed platform 14 is provided with a matching engagement groove. A slot group for the cable to pass through is provided on the side of the upper movable part 311 and the lower fixed part 312 that are close to each other.

[0043] The aperture setting of the slot group 1 is regular: as it moves away from the rotation axis of the lower arc slot 211 and the upper arc slot 213 (i.e. from the inside to the outside), the aperture gradually increases, forming a small hole on the inside and a large hole on the outside, which are suitable for thin cables and thick cables to pass through respectively, ensuring that the cables can be clearly separated and neatly arranged when entering and exiting the turning section.

[0044] Reference Figure 1 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 To facilitate the installation of the layered teeth 32 and to achieve locking, the lower arc groove 211, the middle arc groove 212 and the upper arc groove 213 are all provided with a first mounting groove 22 in the middle. The fan-shaped support plate 11 is provided with three second mounting grooves 23 in a circumferential direction for installing the layered teeth 32.

[0045] The number and position of the layered gears 32 can be selected as needed. The number of layered gears 32 installed corresponds to the turning angle formed by the steering connection mechanism 2: when a 30-degree turning space is formed, one layered gear 32 can be installed (e.g., Figure 1 As shown); when a 60-degree turning space is formed, two layered teeth 32 are assembled (as shown). Figure 8 As shown); when a 90-degree turning space is formed, three layered teeth 32 are assembled (as shown). Figure 9 (As shown).

[0046] It should be noted that the layered teeth 32 are inserted into the mounting slot 1 22 and mounting slot 23 sequentially from top to bottom. The radial length of mounting slot 1 22 is shorter than that of mounting slot 23, which helps the layered teeth 32 maintain a stable state after installation and before locking.

[0047] The upper part of the layered teeth 32 has a stepped structure, and its top wall has a second set of slots corresponding to the first set of slots in the wiring teeth 31. Specifically, it includes a small inner slot and a large outer slot, which are used to guide thin cables to a higher position (small inner slot) and thicker cables to a lower position (large outer slot), thus realizing layered wiring. The wiring teeth 31 and the layered teeth 32 work together to form this "thin inside, thick outside, high inside, low outside" layout, which not only avoids the mutual compression and entanglement of thick and thin cables at bends, but also facilitates the effective dissipation of heat during cable operation, significantly improving the operational safety and service life of the cable.

[0048] It should be noted that the height of the lowest layer of the stepped structure of the layered teeth 32 is higher than the height of the top wall of the horizontal section of the upper circular arc groove 213, ensuring that cables of all thicknesses are supported by the layered teeth 32.

[0049] Reference Figure 1 , Figure 2 , Figure 4 and Figure 7 The lower part of the layered teeth 32 is provided with a locking hole 33. The layered teeth 32 not only serve to manage the cable, but also lock the position of the steering connection mechanism 2 through a subsequent locking mechanism. This embodiment also includes a rotation locking mechanism 4 for locking the relative position of the steering connection mechanism 2 and the layered teeth 32.

[0050] The rotary locking mechanism 4 includes a rotating base 41 and an annular arc segment 42. The rotating base 41 is rotatably mounted at the center of the bottom wall of the sector-shaped support disk 11 via a torsion spring (not shown in the figure) and can rotate around the center. The annular arc segment 42 is fixedly mounted on the rotating base 41 and is shaped like a quarter-circle. After the layered teeth 32 are installed in place, the rotating base 41 is rotated so that the annular arc segment 42 passes through the locking holes 33 on each layered tooth 32, thereby locking the relative positions of the multiple layered teeth 32, as well as the lower arc groove 211, the middle arc groove 212, and the upper arc groove 213.

[0051] It should be noted that the function of the torsion spring is to automatically reset the circular arc segment 42 in the unlocked state, which facilitates operation.

[0052] Reference Figure 1 and Figure 5 Mounting bases 5 are provided at the inlet end of the lower arc groove 211 and the outlet end of the upper arc groove 213. The mounting bases 5 are standard interface structures used to be fixedly connected to the straight general-purpose cable tray by bolts to realize the docking of the entire cable tray system.

[0053] The specific operation steps of this prefabricated cable trough are as follows: According to the required turning angle on site (such as 30 degrees, 60 degrees or 90 degrees), rotate the lower arc groove 211, the middle arc groove 212 and the upper arc groove 213 relative to each other to form the corresponding turning space; according to the adjusted angle, slide the movable hanger 12 to the appropriate position to ensure that the three hangers 12 are evenly supported by force; rotate the rotating seat 41 of the rotating locking mechanism 4 so that the circular arc segment 42 passes through the locking hole 33 of each layer tooth 32 to lock the entire mechanism; connect this device to the straight universal cable trough on both sides through the mounting seat 5; install the wiring teeth 31 and insert the cables at the inlet and outlet ends into the corresponding holes according to their thickness; according to the turning angle, select the appropriate number of layer teeth 32 to install in the mounting slot 1 22 and the mounting slot 2 23, and put the cables into the inner small slot and the outer large slot of the layer teeth 32 according to their thickness.

[0054] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0055] Furthermore, the terms "first," "second," "number one," and "number two" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," "number one," or "number two" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0056] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0057] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A prefabricated cable trough, characterized in that, include: The hoisting support mechanism includes a sector-shaped support plate and three hangers mounted on the sector-shaped support plate; A steering connection mechanism is mounted on a sector-shaped support plate and includes a steering groove assembly, which includes a lower circular arc groove, a middle circular arc groove, and an upper circular arc groove that can rotate relative to each other around the same axis. The cabling mechanism includes cabling teeth and layering teeth mounted on the steering connection mechanism; The rotation axes of the lower, middle, and upper circular arc grooves are concentric with the center of the fan-shaped support plate. The middle of the lower, middle, and upper circular arc grooves are all provided with a mounting groove 1, and the fan-shaped support plate is provided with three mounting grooves 2 in a circumferential direction. The layered teeth are multiple and are adapted to mounting slot one and mounting slot two. The upper part of the layered teeth has a stepped structure, and the top wall of the layered teeth has a slot group two corresponding to slot group one. The lower part of the layered teeth has a locking hole. It also includes a rotary locking mechanism for locking the steering connection mechanism and the layered teeth. The rotary locking mechanism includes a rotating seat that is rotatably mounted on the center of the bottom wall of the sector support plate by a torsion spring. A circular arc segment is fixedly mounted on the rotating seat, and the circular arc segment is adapted to the locking hole. The lower, middle, and upper circular arc grooves have the same curvature but different diameters, and are nested together in sequence. They are combined by relative rotation to form different turning angle spaces. The wiring teeth neatly separate the cables at the cable entry and exit ends, and the layer teeth are set according to the formed turning angle to perform layered wiring of the internal cables.

2. The assembled cable trough according to claim 1, characterized in that, A fixed platform is fixed at the center of the sector-shaped support plate. Two of the three hangers are fixed hangers, and the third is a movable hanger. The movable hanger is slidably installed on the sector-shaped support plate through a sliding seat, and its support position is adjusted according to the turning angle after the steering connection mechanism is adjusted.

3. The assembled cable trough according to claim 1, characterized in that, The lower, middle, and upper circular arc grooves all have an arc of 30 degrees and their diameters decrease sequentially. They are concentrically connected and, by rotating relative to each other around the same axis, form cable turning spaces of 30 degrees, 60 degrees, or 90 degrees.

4. The assembled cable trough according to claim 2, characterized in that, Two wiring teeth are provided, which are installed radially on the lower and upper circular arc grooves respectively, and are located at the cable inlet and outlet ends.

5. A prefabricated cable trough according to claim 4, characterized in that, The wiring teeth include an upper movable part and a lower fixed part. A slot group 1 for the cable to pass through is opened on the side of the upper movable part and the lower fixed part that are close to each other. The diameter of the slot group 1 gradually increases as it moves away from the rotation axis of the lower and upper arc grooves.

6. A prefabricated cable trough according to claim 5, characterized in that, The lower fixed part is fixed to the corresponding lower arc groove and upper arc groove, one end of the upper movable part is engaged with the corresponding lower arc groove and upper arc groove, and the other end of the upper movable part is engaged with the fixed platform.

7. A prefabricated cable trough according to claim 1, characterized in that, It also includes mounting bases, with mounting bases provided at both the lower arc groove inlet end and the upper arc groove outlet end, for fixed connection with the straight universal cable trough by bolts.

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