A cable tray with isolation structure

By designing a cable tray with an isolated structure, using multiple bridge trays and hoisting parts to quickly assemble the booms of the hoisting parts to form an independent cable laying path, the problem of easy winding of traditional cable trays is solved, and the rapid and convenient installation and protection of cables is achieved.

CN119787218APending Publication Date: 2025-04-08HEBEI YANWU EXPLODEPROOF ELECTRICAL EQUIP
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Patent Information

Application Number
CN202411911276.5
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-24
Publication Date
2025-04-08

AI Technical Summary

Technical Problem

Traditional cable trays are prone to wrap during cable laying, which increases construction difficulty and cost, and may affect the normal operation and service life of the cable.

Method used

A cable tray with an isolated structure is designed, and the booms of multiple bridges and hoisting parts are quickly assembled to form independent cable laying paths to avoid winding, and multiple independent wire tubes are provided on the bridge to independently wrap the cables.

Benefits of technology

It realizes fast and convenient installation of cables, reduces construction difficulty and cost, and protects the cables through independent wire pipes to avoid winding and external damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention discloses a cable bridge with an isolation structure, which relates to the technical field of cable bridges, including a bridge, wherein both ends of the bridge are bent upward to form side panels, and the upper ends of the two side panels extend horizontally to a side away from each other to form an edge portion, and a plurality of bridges are spliced ​​together to form a cable support and protection member; two adjacent bridges are directly opposite to the wire tubes that fit together to form an independent cable laying passage, and the upper ends of two groups of hangers are adjustably connected to two connecting ends respectively, and the bottom ends of the hangers are provided with an expansion portion, and the end of the edge portion is provided with a clamping notch, and the hanger is clamped into the clamping notch and the expansion portion is located below the edge portion; the distance between the bottom ends of the two opposite hangers on the left and right can be adjusted. The support and protection member for cable laying formed by the present invention does not need to be assembled by bolts or welding, and a plurality of independent wire tubes are provided at the same time. On the one hand, the cable is wrapped independently to avoid the entanglement of multiple cable brackets, which is convenient for the installation and maintenance of the cable, and on the other hand, it resists damage to the cable caused by external forces.
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Description

Technical Field

[0001] The invention relates to the technical field of cable bridges, in particular to a cable bridge with an isolation structure. Background Art

[0002] Cable tray is a device used to carry and protect cables. It is widely used in the fields of construction, electricity, communications, industrial automation and IT industries. Cable trays use their own structural characteristics to attach and support cables to buildings (structures) or independently support cables to pass through tunnels or caves, underground or in the air. At the same time, they isolate the cables from the outside world to prevent them from being directly exposed to the atmosphere, and to isolate them from direct damage to the cables by factors such as sunlight, fog, rain, snow, and wind, thereby increasing the service life of the cables.

[0003] Traditional cable trays mostly adopt trough, tray or ladder structures. Although these structures meet the needs of cable laying to a certain extent, there are still some problems and shortcomings in practical applications. For example, although the trough-type cable tray can arrange the cables neatly, its structure is relatively closed, and the installation and maintenance of the cables are difficult. In addition, with the continuous increase in the number and types of cables, the requirements for cable trays are also getting higher and higher. Traditional cable trays often have the problem of easy entanglement during the cable laying process, which not only increases the difficulty and cost of construction, but also may affect the normal operation and service life of the cables. Summary of the invention

[0004] The object of the present invention is to provide a cable tray with an isolation structure to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solution: a cable tray with an isolation structure, comprising:

[0006] A bridge, wherein both ends of the bridge are bent upward to form side panels, the upper ends of the two side panels extend horizontally to a side away from each other to form an edge portion, and the space between the two side panels is an installation space with an opening at the upper end. The bridge is provided with multiple bridges, and multiple bridges are spliced ​​together to form a cable support protective member;

[0007] The bottom wall of the bridge is provided with a plurality of parallelly distributed inlet notches, the inlet notches are distributed along the cable laying direction, a plurality of arc-shaped matching blocks are fixed to the upper opening of each inlet notch, a plurality of arc-shaped notches on the same inlet notch are plugged with wire tubes, and two adjacent bridges face the wire tubes that fit together to form an independent cable laying passage;

[0008] A hoisting part, the hoisting part comprises a hanger and a plurality of hangers for hoisting the bridge frame, the hanger has connection ends extending downward at both ends, the plurality of hangers are equally divided into two groups, the upper ends of the two groups of hangers are respectively adjustably connected to the two connection ends, the bottom end of the hanger is provided with an enlarged portion, the end of the edge portion is provided with a clamping notch, the hanger is clamped into the clamping notch and the enlarged portion is located below the edge portion;

[0009] The distance between the bottom ends of the two hanging rods opposite to each other on the left and right can be adjusted and set for clamping into and out of the clamping notch.

[0010] In a further embodiment, the radial side wall of the wire tube is provided with a wire embedding opening having the same width as the wire inlet notch, and the width of the wire embedding opening is equal to the height inside the wire inlet notch of the bridge;

[0011] When the wire tube is rotated so that the buried wire opening and the wire entry notch are aligned, the cable can be passed through the wire entry notch and the buried wire opening;

[0012] When the wire tube is rotated to displace the wire embedding opening and the wire entry notch, the cable can be stored in the wire tube.

[0013] According to claim 1, the cable tray with an isolation structure is characterized in that a plurality of strip-shaped recesses are provided on the radial side walls of the wire tube, a positioning seat is also placed on the installation space, a plurality of inverted U-shaped openings are provided on the bottom end of the positioning seat, the opening width of the inverted U-shaped openings is equal to the diameter of the wire tube, and a protrusion that is clamped with the strip-shaped recess is fixed on the top wall of the inverted U-shaped opening.

[0014] In a further embodiment, anti-slip discs are radially provided at both ends of the wire tube.

[0015] In a further embodiment, a connecting piece is further included, and the connecting piece is used to connect two adjacent bridge frames arranged at right angles;

[0016] The connecting piece is an L-shaped support frame, which also has the same side panels and edge portions as the bridge frame. The two ends of the support frame are also bent upward to form side panels, and the upper ends of the two side panels also extend horizontally to the side away from each other to form an edge portion. The space between the two side panels also forms an installation space with an opening at the upper end.

[0017] In a further embodiment, a snap-fit ​​notch is also provided on the edge of the support frame, a snap-fit ​​seat is fixed to the bottom wall of the snap-fit ​​notch, an entry notch in the same direction as the snap-fit ​​notch is provided on the radial side wall of the snap-fit ​​seat, and a limiting chamber of the snap-fit ​​expansion portion is provided in the snap-fit ​​seat.

[0018] In a further embodiment, a plurality of inverted T-shaped threaded sleeves are fixed to the bottom end surface of the hanger, fastening bolts are connected to the inner threads of the threaded sleeves, and the upper end surface of the hanger is provided with through holes for the fastening bolts to pass through.

[0019] In a further embodiment, a hinge notch is provided on the side wall on which the two connecting ends are away from each other, and two suspension rods are provided, and the upper ends of the two suspension rods are respectively hinged to the inner walls of the hinge notch. The two suspension rods can flip around the hinge position toward the side away from each other or toward the side close to each other, thereby adjusting the distance between the expanded parts connecting the two suspension rods.

[0020] In a further embodiment, sliding openings are provided on the opposite side walls of the two connecting ends, a limiting plate is slidably sleeved between the outer walls of the plurality of threaded sleeves, a limiting groove is provided on the top end of the side wall of the suspension rod, an anti-slip block is provided on the top wall of the limiting groove near the groove, the two ends of the limiting plate slide through the sliding openings respectively into the hinged notch, and clamping blocks are fixed on both ends of the upper end of the limiting plate, the limiting plate is raised in height, the clamping block is slid upward along the limiting groove, and is located on the side of the anti-slip block;

[0021] The outer wall of the threaded sleeve is also sleeved with a spring which is fixedly connected to the bottom wall of the limiting plate.

[0022] In a further embodiment, an inverted T-shaped handle is fixed to the bottom wall of the limiting plate.

[0023] Compared with the prior art, the present invention has the following beneficial effects:

[0024] The present invention is a cable bridge with an isolation structure. According to the wiring requirements of the cable lines, a plurality of hanging parts are first installed on the top wall at a preset position, and then a plurality of bridges and hanging rods of the hanging parts are quickly assembled to form a supporting and protective part for cable installation. No additional bolts or welding methods are required for assembly, and the installation is fast and convenient. At the same time, a plurality of independent wire tubes are arranged on the bridge. On the one hand, the cables are independently wrapped and wired to avoid entanglement of multiple cable brackets, which facilitates the installation and maintenance of the cables and reduces the construction difficulty and cost. On the other hand, it can also resist external force damage factors to the cables. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a schematic diagram of the main structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the disassembly of the bridge structure of the present invention;

[0027] Figure 3 It is a schematic diagram of the structure of the connector of the present invention;

[0028] Figure 4 It is a schematic diagram of the overturning adjustment of the boom of the present invention;

[0029] Figure 5 It is a schematic diagram of assembling the suspension rod and the holder of the present invention;

[0030] Figure 6It is a cross-sectional view of the hanger structure of the present invention;

[0031] Figure 7 For the present invention Figure 6 A magnified view of the structure at center;

[0032] Figure 8 It is a schematic diagram of the structure of the limiting plate of the present invention;

[0033] Fig. 9 A schematic diagram of a further improved structure of the bridge structure of the present invention;

[0034] Fig.10 It is a schematic diagram of the assembly structure of the wire tube and the positioning seat of the present invention;

[0035] Fig.11 It is the front view of the positioning seat structure of the present invention.

[0036] In the figure: 1. bridge; 11. edge; 12. holder; 13. wire inlet notch; 2. wire tube; 21. arc-shaped matching block; 3. hanger; 31. hanger rod; 32. limit plate; 33. fastening bolt; 34. expansion part; 35. threaded sleeve; 36. inverted T-shaped handle; 37. block; 38. anti-slip block; 4. support frame; 41. wiring hollow part; 5. positioning seat; 51. bump. DETAILED DESCRIPTION

[0037] The following will be described clearly and completely in conjunction with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0038] Embodiment, this embodiment provides a cable bridge 1 with an isolation structure, including: a bridge 1, the specific structure of the bridge 1 is as follows Figure 1 and Figure 2 As shown, the two ends of the bridge 1 are bent upward to form side panels, and the upper ends of the two side panels extend horizontally to the side away from each other to form an edge portion 11. The space between the two side panels is an installation space with an opening at the upper end. The two side panels serve as external isolation structures after the cable is installed, which is helpful to prevent the laid cables from being pulled and broken due to external force collision.

[0039] like Figure 1 , Figure 2 and Figure 4As shown, according to the needs of erection, the bridge frame 1 is provided with multiple ones, and also includes a lifting part, which includes a hanger 3 and a plurality of hangers 31 for lifting the bridge frame 1. The hangers 3 have connecting ends extending downward at both ends. The plurality of hangers 31 are equally divided into two groups. The upper ends of the two groups of hangers 31 are adjustably connected to the two connecting ends respectively. An enlarged portion 34 is provided at the bottom end of the hanger 31, and a snap-in notch is opened at the end of the edge portion 11.

[0040] Before installing the cable, the first thing to do is to install the entire hanging part according to the predetermined route. Specifically, a plurality of inverted T-shaped threaded sleeves 35 are fixed on the bottom end surface of the hanger 3, and the threaded sleeves 35 are internally threaded with fastening bolts 33. The upper end surface of the hanger 3 is provided with a through hole for the fastening bolts 33 to pass through. Align the through hole of the hanger 3 with the installation hole of the predetermined route, and then rotate the fastening bolts 33 along the axial direction of the threaded sleeves 35 until the hanger 3 is fastened at the predetermined position.

[0041] Then, a hinge notch is opened on the side wall of the two connecting ends away from each other, and two suspension rods 31 are provided. The upper ends of the two suspension rods 31 are respectively hinged to the inner wall of the hinge notch. The two suspension rods 31 can be turned around the hinge position to the side away from each other or to the side close to each other, thereby adjusting the distance between the expansion parts 34 connected by the two suspension rods 31. Figure 4 , Figure 5 and Figure 6 As shown, the suspension rod 31 is inserted into the snap-in notch and the enlarged portion 34 is located below the edge portion 11; the distance between the bottom ends of the two opposite suspension rods 31 on the left and right can be adjusted for inserting into and disengaging from the snap-in notch, and a socket 12 is fixed to the bottom wall of the notch, and an entry notch in the same direction as the snap-in notch is provided on the radial side wall of the socket 12, and a limiting chamber for the snap-in enlarged portion 34 is provided in the socket 12. Specifically, after the suspension bracket 3 is installed, the bridge frame 1 needs to be installed, and the edge portion 11 of the bridge frame 1 is inserted into the snap-in notch, and at the same time, the enlarged portion 34 is lifted upward from the bottom end opening of the socket 12 into the limiting chamber, and the diameter of the enlarged portion 34 is larger than the width of the entry notch, thereby preventing the enlarged portion 34 from detaching laterally, thereby ensuring that the bridge frame 1 is lifted into the air using the suspension rod 31.

[0042] In order to prevent the suspension rod 31 from rotating randomly, Figure 6 , Figure 7 and Figure 8As shown, sliding openings are provided in the opposite side walls of the two connecting ends, and a limit plate 32 is slidably sleeved between the outer walls of multiple threaded sleeves 35. A limit groove is provided at the top end of the side wall of the suspension rod 31, and an anti-slip block 38 is provided on the top wall of the limit groove near the groove. The two ends of the limit plate 32 slide through the sliding openings and enter the hinged notch respectively, and a clamping block 37 is fixed on both ends of the upper end of the limit plate 32. The limit plate 32 is adjusted in height, and the clamping block 37 slides upward along the limit groove and is located on the side of the anti-slip block 38; at the same time, a spring fixedly connected to the bottom wall of the limit plate 32 is also sleeved on the outer wall of the threaded sleeve 35, and the elastic force of the spring is used to push the limit plate 32 upward in real time, thereby ensuring that the clamping block 37 is always located on the side of the anti-slip block 38, thereby preventing the suspension rod 31 from rotating arbitrarily around the rotation position.

[0043] When assembling the bridge frame 1 and the suspension rod 31, when expanding the gap between the bottom ends of the two suspension rods 31, an inverted T-shaped handle 36 is fixed to the bottom wall of the limit plate 32. The inverted T-shaped handle 36 is held with one hand to drive the limit plate 32 to be pulled downward, thereby driving the clamping block 37 to slide down along the limit groove, and then the upper end clamping block 37 is located below the anti-slip block 38. In this way, the suspension rod 31 is rotated around the rotation position to expand the distance between the bottom ends of the two suspension rods 31, and then the bridge frame 1 is placed between the two expansion parts 34, and then the suspension rod 31 is rotated in the opposite direction, the suspension rod 31 is inserted into the clamping notch, and the expansion part 34 is inserted into the limit chamber of the clamping seat 12, and then the assembly is complete.

[0044] After the bridge 1 is installed, Figure 2 As shown, a plurality of parallelly distributed inlet notches 13 are provided on the bottom wall of the bridge 1, and the inlet notches 13 are distributed along the cable laying direction. A plurality of arc-shaped matching blocks 21 are fixed to the upper opening of each inlet notch 13, and a wire tube 2 is inserted into the plurality of arc-shaped notches on the same inlet notch 13. Anti-slip disks are radially provided at both ends of the wire tube 2 to prevent the wire tube 2 from slipping along the axial direction and escaping from the inlet notch 13. The two adjacent bridges 1 here are facing the fitted wire tubes 2 to form an independent cable laying passage, which is used to arrange separate cables and realize separate wiring, thereby avoiding entanglement and being inconvenient for later maintenance.

[0045] In addition, it should be added that when installing the bridge 1, if it is a straight route, multiple bridges 1 are spliced ​​together to form a cable support protective member, and the ends of the wire tubes 2 of two adjacent bridges 1 are facing each other and fit together to ensure that all the wire tubes 2 form a complete cable installation passage.

[0046] If the orientation of the cable needs to be changed, the present embodiment also includes a connector, such as Figure 1 and Figure 3As shown, the connector is used to connect two adjacent bridges 1 arranged at right angles; the connector is an L-shaped support frame 4, and a wiring hollow portion 41 is set at the inner corner of the support frame 4, and a space is reserved for the bending and routing of multiple cables. The support frame 4 also has the same side panels and edge portions 11 as the bridge frame 1, that is, except that the support frame 4 is not a straight-edge structure, the other structures are the same as the bridge frame 1, and the support frame 4 is set to an L-shaped structure for the purpose of having a gap between the two bridge frames 1 at the corner when the bridge frame 1 turns and changes direction, and the support frame 4 plays a connecting role between the two bridge frames 1. The two ends of the support frame 4 here are also bent upward to form side panels, and the upper ends of the two side panels also extend horizontally to the side away from each other to form an edge portion 11, and the space between the two side panels also forms an installation space with an opening at the upper end. The installation method of the cable in the wire tube 2 on the support frame 4 is the same as the installation method of the wire tube 2 on the bridge frame 1, which will not be repeated here.

[0047] In summary, according to the wiring requirements of the cable, multiple hanging parts are first installed on the top wall of the preset position, and then multiple bridges 1 and the hanging rods 31 of the hanging parts are quickly assembled to form a supporting protective part for cable installation. No additional bolts or welding are required for assembly, and the installation is fast and convenient. At the same time, multiple independent wire tubes 2 are set on the bridge 1. On the one hand, the cables are independently wrapped and wired to avoid the entanglement of multiple cable brackets, which is convenient for the installation and maintenance of the cables and reduces the construction difficulty and cost. On the other hand, it can also resist external force damage factors to the cables.

[0048] In addition, further, in this embodiment, in order to facilitate the rapid installation of the cable, as shown in FIG. Fig. 9 As shown, a wire embedding opening of the same width as the wire entry notch 13 is provided on the radial side wall of the wire tube 2. When installing the cable, the wire tube 2 is first rotated so that the wire embedding opening is aligned with the wire entry notch 13, and the cable can be passed through the wire entry notch 13 and the wire embedding opening. Then, the wire tube 2 is rotated again so that the wire embedding opening and the wire entry notch 13 are offset, and the cable can be stored in the wire tube 2.

[0049] During the whole process, it is not necessary to bypass the cables from above the bridge 1, but only to install the bridge 1 in advance. The cables can be embedded into the wire tubes 2 one by one as needed under the bridge 1, which greatly improves the efficiency of cable installation. Compared with the traditional way of installing cables, this method does not require the cooperation of multiple people, and only requires one person to stand at the height below the installed bridge 1, and gradually embed the measured cables to be installed into the wire tube 2 from one end of the cables in sequence, and then rotate the dislocated wire tube 2 to prevent the installed parts from being detached, until all cables are completely installed into the wire tube 2.

[0050] like Fig.10 and Fig.11As shown, the radial side wall of the wire tube 2 is provided with a plurality of strip-shaped recessed portions, and a positioning seat 5 is also placed in the installation space. A plurality of inverted U-shaped openings are provided at the bottom end of the positioning seat 5. The opening width of the inverted U-shaped opening is equal to the diameter of the wire tube 2, and a protrusion 51 that is engaged with the strip-shaped recessed portion is fixed on the top wall of the inverted U-shaped opening. When the wire tube 2 is rotated, the buried wire opening and the wire entry notch 13 are misaligned, and then the inverted U-shaped opening of the positioning seat 5 is clamped on the outer wall of the wire tube 2, and the protrusion 51 is clamped on the strip-shaped recessed portion at the corresponding position. At the same time, the bottom wall of the positioning seat 5 contacts the upper end surface of the bridge frame 1. In this way, the wire tube 2 can be prevented from rotating arbitrarily to adjust the buried wire opening position, thereby preventing the cable from detaching.

[0051] It should be noted that after the cable is inserted into the wire tube 2 through the wire entry notch 13 and the wire embedding opening, in order to prevent the cable from falling out of the wire entry notch 13 and the wire embedding opening again due to its own weight, the cable will fall down. Firstly, it is easy to cause the outer sheath of the cable to crack and affect its life if the cable falls for a long time. Secondly, if it is in a traffic area, the falling cable will inevitably affect pedestrians or vehicles passing below, and it is also easy to pull the cable apart, causing safety hazards and affecting the normal use of the circuit.

[0052] For this reason, Fig. 9 As shown, the width of the buried wire opening is equal to the height of the wire entry notch 13 of the bridge frame 1. The purpose of this is to rotate the wire tube 2 to stagger the buried wire opening and the wire entry notch 13. In order to ensure that the cable is completely wrapped in the wire tube 2, the buried wire opening is rotated to face the inner wall of the wire entry notch 13. At this time, the buried wire opening is not exposed, and the inner wall of the wire entry notch 13 is used to cover the buried wire opening. In this way, it can ensure that the cable is completely wrapped in the wire tube 2.

[0053] Another purpose of this design is to completely wrap the cable in the cable tube 2, so as to provide all-round protection for the cable and prevent external forces from damaging the cable, such as external collisions or rat bites.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A cable tray (1) with an isolation structure, characterized in that: include: A bridge frame (1), wherein both ends of the bridge frame (1) are bent upward to form side panels, upper ends of the two side panels extend horizontally toward a side away from each other to form an edge portion (11), and a space between the two side panels is an installation space with an opening at the upper end, and the bridge frame (1) is provided with a plurality of bridge frames (1), and the plurality of bridge frames (1) are spliced ​​together to form a cable support and protection member; The bottom wall of the bridge (1) is provided with a plurality of parallelly distributed wire entry notches (13), the wire entry notches (13) being distributed along the cable laying direction, a plurality of arc-shaped matching blocks (21) being fixed to the upper opening of each wire entry notch (13), a wire tube (2) being inserted into the plurality of arc-shaped notches on the same wire entry notch (13), and two adjacent bridges (1) facing the fitted wire tubes (2) forming an independent cable laying passage; A hanging component, the hanging component comprising a hanging frame (3) and a plurality of hanging rods (31) for hanging a bridge frame (1), the hanging frame (3) having connecting ends extending downward at both ends, the plurality of hanging rods (31) being equally divided into two groups, the upper ends of the two groups of hanging rods (31) being adjustably connected to the two connecting ends respectively, the bottom ends of the hanging rods (31) being provided with enlarged portions (34), the end ends of the edge portions (11) being provided with clamping notches, the hanging rods (31) being clamped into the clamping notches and the enlarged portions (34) being located below the edge portions (11); The distance between the bottom ends of the two opposite suspension rods (31) can be adjusted to fit in and out of the engagement notch.

2. The cable tray (1) with an isolation structure according to claim 1, characterized in that: The radial side wall of the wire tube (2) is provided with a wire embedding opening having the same width as the wire inlet notch (13), and the width of the wire embedding opening is equal to the inner height of the wire inlet notch (13) of the bridge (1); When the wire tube (2) is rotated so that the wire embedding opening and the wire entry notch (13) are aligned opposite each other, the cable can be inserted through the wire entry notch (13) and the wire embedding opening; When the wire tube (2) is rotated to displace the wire embedding opening and the wire entry notch (13), the cable can be stored in the wire tube (2).

3. The cable tray (1) with an isolation structure according to claim 1, characterized in that: The radial side wall of the wire tube (2) is provided with a plurality of strip-shaped recessed portions, the installation space is further provided with a positioning seat (5), the bottom end of the positioning seat (5) is provided with a plurality of inverted U-shaped openings, the opening width of the inverted U-shaped openings is equal to the diameter of the wire tube (2), and a protrusion (51) that is clamped with the strip-shaped recessed portion is fixed to the top wall of the inverted U-shaped opening.

4. The cable tray (1) with an isolation structure according to claim 2, characterized in that: Anti-slip discs are radially provided at both ends of the wire tube (2).

5. The cable tray (1) with an isolation structure according to claim 2, characterized in that: It also includes a connecting piece, the connecting piece is used to connect two adjacent bridge frames (1) arranged at right angles; The connecting piece is a support frame (4) of an L-shaped structure, and the support frame (4) also has the same side panels and edge portions (11) as the bridge frame (1).

6. The cable tray (1) with an isolation structure according to claim 5, characterized in that: The edge portion (11) of the support frame (4) is also provided with a snap-fitting notch, a snap-fitting seat (12) is fixed to the bottom wall of the snap-fitting notch, an entry notch in the same direction as the snap-fitting notch is provided on the radial side wall of the snap-fitting seat (12), and a limiting chamber of the snap-fitting enlarged portion (34) is provided in the snap-fitting seat (12).

7. The cable tray (1) with an isolation structure according to any one of claims 1 to 6, characterized in that: A plurality of inverted T-shaped threaded sleeves (35) are fixed to the bottom end surface of the hanger (3), the threaded sleeves (35) are internally threadedly connected with fastening bolts (33), and the upper end surface of the hanger (3) is provided with through holes for the fastening bolts (33) to pass through.

8. The cable tray (1) with an isolation structure according to claim 7, characterized in that: A hinge notch is provided on the side wall at the two connecting ends which are away from each other. Two suspension rods (31) are provided. The upper ends of the two suspension rods (31) are respectively hinged to the inner wall of the hinge notch. The two suspension rods (31) can be turned around the hinge position to the side away from each other or to the side close to each other, thereby adjusting the distance between the enlarged parts (34) connected to the two suspension rods (31).

9. The cable tray (1) with an isolation structure according to claim 8, characterized in that: The two connecting ends are provided with sliding openings on the opposite side walls, and a limiting plate (32) is slidably sleeved between the outer walls of the plurality of threaded sleeves (35). A limiting groove is provided on the top of the side wall of the suspension rod (31), and an anti-slip block (38) is provided on the top wall of the limiting groove near the groove. The two ends of the limiting plate (32) slide through the sliding openings and enter the hinged notch, and the two ends of the upper end of the limiting plate (32) are fixed with a clamping block (37). When the limiting plate (32) is raised in height, the clamping block (37) slides upward along the limiting groove and is located on the side of the anti-slip block (38); The outer wall of the threaded sleeve (35) is also sleeved with a spring fixedly connected to the bottom wall of the limiting plate (32).

10. The cable tray (1) with an isolation structure according to claim 9, characterized in that: An inverted T-shaped handle (36) is fixed to the bottom wall of the limiting plate (32).

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