Cable trough type bridge

Abstract

The utility model relates to the technical field of cable bridges, and discloses a cable trough type bridge which comprises a bottom plate and a cover plate, the bottom plate and the cover plate are connected through a clamping assembly, lower clamping blocks and upper clamping blocks are arranged in the bottom plate and the cover plate, and the multiple upper clamping blocks are connected with the cover plate through a pressing mechanism. The clamping assembly comprises a plurality of elastic pieces fixedly connected to the outer walls of the tops of the edges of the two sides of the bottom plate, the top ends of the elastic pieces are folded outwards to form buckles, and the edges of the two sides of the bottom of the cover plate are folded inwards to form barbs. In the process, the clamping action triggers the pressing mechanism to operate automatically, the cable is firmly fixed between the lower clamping block and the upper clamping block, bridge assembly and cable fixation can be completed synchronously without additional operation, and the wire box assembly and cable laying process is greatly simplified.

Description

Technical Field

[0001] This application relates to the field of cable tray technology, and in particular to a cable trough type cable tray. Background Technology

[0002] A cable is a device for transmitting electrical energy or signals. It is usually composed of several or several groups of conductors. Due to different usage scenarios or functions, there are different types of cables. Commonly used cables include power cables, high-temperature cables, computer cables, signal cables, fire-resistant cables, etc. They are all composed of single or multiple strands of conductors and insulation layers, and are used to connect circuits, electrical appliances, etc.

[0003] CN217882697U discloses "a cable trough-type cable tray, including a cover plate, the cover plate being rectangular in shape... the support legs and the outer wall each have four threaded holes." This utility model allows the straightened cables to be placed into cable clamps in the bottom trough by opening the cover plate. There are two cable clamps in the bottom trough: a large cable clamp and a small cable clamp. When the cable is thicker, it can be fixed in the large cable clamp, and when the cable is thinner, it can be fixed in the small cable clamp. Compared with ordinary trough-type cable trays, this utility model can ensure that the cables, regardless of size, extend in a straight line, preventing the cables from twisting or bending. It is easy to manage and also minimizes the transmission distance of the cables, ensuring the transmission efficiency of the cables.

[0004] When laying cables in existing trough-type cable trays, the assembly of junction boxes and the cable laying process are quite cumbersome. Traditional installation methods often require operators to frequently adjust the position of the cover plate and the bottom trough, repeatedly check the cable route, and fix it with multiple screws during assembly. This not only increases the difficulty of installation but also significantly reduces the efficiency of installation. At the same time, the complicated installation operation also significantly increases labor costs and the risk of errors during the installation process. Once a problem occurs, the subsequent inspection and rectification work is extremely difficult. Therefore, a cable trough-type cable tray is proposed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide a cable tray type cable trough to solve the problems mentioned in the background art.

[0006] The cable tray provided in this application adopts the following technical solution:

[0007] A cable tray includes a base plate and a cover plate, the base plate and the cover plate being connected by a snap-fit ​​assembly, and the base plate and the cover plate having a lower clamping block and an upper clamping block inside, and a plurality of the upper clamping blocks being connected to the cover plate by a pressing mechanism;

[0008] The snap-fit ​​assembly includes multiple elastic sheets fixedly connected to the top outer wall of the two side edges of the base plate. The tops of the multiple elastic sheets are folded outward to form buckles, and the top surfaces of the buckles are inclined. The bottom two side edges of the cover plate are folded inward to form barbs, and the bottom surfaces of the barbs are inclined. Two barbs are snapped into the multiple buckles. Multiple limiting blocks are provided at both ends of the cover plate. The limiting blocks are embedded in the inside of the barbs. The top of the limiting blocks is provided with screw holes. Multiple screws are inserted into the top outer wall of the cover plate. The bottom ends of the screws are threaded into the inner wall of the screw holes.

[0009] Preferably, the bottom outer wall of the lower clamping block is fixedly connected with a plurality of fixing rods, the bottom ends of the plurality of fixing rods are fixedly connected to the bottom inner wall of the base plate, and the outer wall of the lower clamping block opposite to the upper clamping block is provided with a plurality of arc-shaped grooves with different inner diameters.

[0010] Preferably, the clamping mechanism includes guide rails, connecting rods, a fixed plate, a sliding rod, and a spring. Multiple guide rails are fixedly connected to the bottom inner wall of the cover plate. Every two adjacent guide rails correspond to the upper clamping block. Two sliders are slidably connected to the outer wall of the guide rails. A connecting block is fixedly connected to the bottom outer wall of the slider. Two connecting rods are rotatably connected to the two connecting blocks respectively. The bottom end of the connecting rod is hinged to the top outer wall of the upper clamping block.

[0011] Preferably, multiple fixing plates are fixedly connected to the bottom inner wall of the cover plate, with every two fixing plates located at both ends of the guide rail. The slide rod is slidably connected to the inner wall of the fixing plate, with one end of it fixedly connected to the connecting block. The spring is sleeved on the outer wall of the slide rod and located between the connecting block and the fixing plate.

[0012] Preferably, a telescopic rod is fixedly installed on the outer wall of the fixed plate, and the telescopic end of the telescopic rod away from the fixed plate is fixedly connected to the outer wall of the slider.

[0013] Preferably, the top outer wall of the upper clamping block is fixedly connected to two connecting rods, and the top ends of the multiple connecting rods penetrate the cover plate and are fixedly connected to a pull plate.

[0014] Preferably, multiple heat dissipation holes are formed between the multiple elastic sheets.

[0015] In summary, this application includes the following beneficial technical effects:

[0016] Compared to existing technologies, the design of the base plate and cover plate snap-fit ​​assembly utilizes the snap-fit ​​and barb structure with inclined surfaces to achieve fast and precise snap-fit. During this process, the snap-fit ​​action triggers the automatic operation of the clamping mechanism, which firmly fixes the cable between the lower and upper clamping blocks. The cable tray assembly and cable fixing can be completed simultaneously without additional operations, greatly simplifying the process of junction box assembly and cable laying. At the same time, the conductive shielding coating on the inner surface of the frame structure ensures electromagnetic shielding performance, reduces the risk of errors caused by complex installation, lowers labor costs, and significantly improves installation efficiency and convenience, effectively solving the technical problems of cumbersome and inefficient installation of existing trough-type cable trays. Attached Figure Description

[0017] Figure 1 This is an overall schematic diagram of an embodiment of the application;

[0018] Figure 2 This is a first exploded view of an embodiment of the application;

[0019] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0020] Figure 4 This is a second exploded diagram of an embodiment of the application.

[0021] Explanation of reference numerals in the attached diagram: 1. Base plate; 2. Cover plate; 3. Elastic sheet; 4. Buckle; 5. Heat dissipation hole; 6. Barb; 7. Limiting block; 8. Screw hole; 9. Screw; 10. Fixing rod; 11. Lower clamping block; 12. Upper clamping block; 13. Arc groove; 14. Connecting rod; 15. Pull plate; 16. Guide rail; 17. Slider; 18. Connecting block; 19. Connecting rod; 20. Fixing plate; 21. Slide rod; 22. Spring; 23. Telescopic rod. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0023] This application discloses a cable tray type cable trough. (Refer to...) Figure 1-4A cable tray includes a base plate 1 and a cover plate 2. The base plate 1 and the cover plate 2 form the main frame of the cable tray. The two are connected quickly and stably through a unique snap-fit ​​assembly. In the snap-fit ​​assembly, multiple elastic pieces 3 are fixedly connected to the top outer wall of the two sides of the base plate 1. Their tops are folded outward to form buckles 4. The top surface of the buckles 4 is inclined. This inclined surface structure provides guidance and elastic fit space for subsequent snap-fit ​​actions. The bottom two sides of the cover plate 2 are folded inward to form barbs 6. The bottom surface of the barbs 6 is also inclined and matches the inclined surface of the buckles 4. During installation, when the cover plate 2 is snapped down, the barbs 6 slide along the inclined surface of the buckles 4, pushing the elastic pieces 3 to undergo elastic deformation. As the cover plate 2 is continuously pressed down, the barbs 6 are finally fully snapped into the buckles 4, and the elastic pieces 3 recover part of their deformation, so that the base plate 1 and the cover plate 2 are tightly snapped together. This structure is not only easy to install, but also has good anti-vibration and anti-loosening performance.

[0024] Multiple limiting blocks 7 are set at both ends of the cover plate 2 and embedded in the barb 6. The screw hole 8 at the top of the limiting block 7 cooperates with the screw 9 on the top outer wall of the cover plate 2. The threaded connection further enhances the stability of the connection between the cover plate 2 and the base plate 1, preventing the cover plate 2 from loosening due to vibration and other factors during long-term use.

[0025] The lower clamping block 11 and upper clamping block 12 inside the base plate 1 and cover plate 2 work together with the clamping mechanism to reliably fix the cable. The clamping mechanism consists of components such as guide rail 16, connecting rod 19, fixing plate 20, sliding rod 21 and spring 22. Multiple guide rails 16 are fixed to the inner wall of the bottom of cover plate 2. Each pair of adjacent guide rails 16 corresponds to one upper clamping block 12. During the clamping process between cover plate 2 and base plate 1, the slider 17 slidably connected to the guide rail 16 slides along the guide rail 16 under the squeezing action of the barb 6 and buckle 4. The connecting block 18 at the bottom of the slider 17 drives the connecting rod 19 to rotate, thereby causing the upper clamping block 12 to move downward and press the cable onto the lower clamping block 11. During this process, the spring 22 is in a compressed state, and the elastic force it provides assists the connecting rod 19 in stabilizing the downward pressure of the upper clamping block 12, enhancing the clamping force on the cable and ensuring that the cable will not loosen or shift during cable tray operation.

[0026] Multiple fixing rods 10 are fixedly connected to the bottom outer wall of the lower clamping block 11, and their bottom ends are connected to the bottom inner wall of the base plate 1. This connection method allows the lower clamping block 11 to be firmly installed in the base plate 1, providing a stable support foundation for the cable. The outer wall of the lower clamping block 11 opposite to the upper clamping block 12 is provided with multiple arc-shaped grooves 13 with different inner diameters. These arc-shaped grooves 13 can accommodate cables of various specifications. In practical applications, workers can accurately embed the cable into the corresponding arc-shaped groove 13 according to the diameter of the cable. The arc design of the arc-shaped groove 13 can increase the contact area with the cable, make the cable bear the force evenly, further improve the reliability of cable fixing, and reduce damage to the cable sheath.

[0027] The guide rail 16 in the clamping mechanism provides a sliding track for the slider 17, ensuring that the slider 17 can slide smoothly in a predetermined direction when subjected to force. Each pair of adjacent guide rails 16 corresponds to an upper clamping block 12, making the movement of the upper clamping block 12 more stable and precise. The connecting block 18 at the bottom of the slider 17 is rotatably connected to the connecting rod 19. The bottom end of the connecting rod 19 is hinged to the top of the upper clamping block 12. This hinged and rotatable connection constitutes a movable linkage mechanism. During the engagement of the cover plate 2 and the base plate 1, the sliding of the slider 17 transmits power through the rotation of the connecting rod 19, driving the upper clamping block 12 to move downward, thereby achieving the clamping action on the cable. The design of this linkage mechanism ingeniously transforms the downward pressing action of the cover plate 2 into the clamping action of the upper clamping block 12, with a simple structure and high transmission efficiency.

[0028] Multiple fixing plates 20 are fixedly connected to the inner wall of the bottom of the cover plate 2, located at both ends of the guide rail 16, providing an installation and support structure for the slide rod 21. The slide rod 21 is slidably connected to the inner wall of the fixing plate 20, with one end fixed to the connecting block 18. The spring 22 sleeved on its outer wall is located between the connecting block 18 and the fixing plate 20. During the installation of the cable tray, the spring 22 is compressed, storing elastic potential energy, and providing additional clamping force for the upper clamping block 12. When the cable tray needs to be disassembled, the upper clamping block 12 is raised by pulling the pull plate 15, and the slider 17 slides, so that the clamping mechanism can quickly and smoothly release the clamping state on the cable, improving the efficiency of cable tray disassembly and cable maintenance.

[0029] The telescopic rod 23 is fixedly installed on the outer wall of the fixed plate 20. Its telescopic end is connected to the outer wall of the slider 17. The telescopic rod 23 plays a limiting and guiding role during the sliding of the slider 17, preventing the slider 17 from deviating or shaking during the sliding process, and further enhancing the stability of the pressing mechanism. At the same time, the telescopic rod 23 can buffer the movement of the slider 17 to a certain extent, reduce the impact and wear between components, and extend the service life of the cable tray.

[0030] Two connecting rods 14 are fixed to the top outer wall of the upper clamping block 12. Their top ends pass through the cover plate 2 and are connected to the pull plate 15. When disassembling the cable tray, the worker pulls the pull plate 15. The pull plate 15 pulls the upper clamping block 12 up through the connecting rods 14, so that the upper clamping block 12 is separated from the lower clamping block 11, thereby releasing the pressure on the cable. The design of the pull plate 15 facilitates the operation of the worker, making the disassembly process more labor-saving and convenient, and the cable can be released without the need for complicated tools.

[0031] The heat dissipation holes 5 formed between multiple elastic sheets 3 provide a good heat dissipation channel for the inside of the cable tray. During the operation of the cable, a certain amount of heat will be generated. These heat dissipation holes 5 can accelerate air circulation and dissipate the heat in time.

[0032] The inner wall of the frame structure formed by the base plate 1 and the cover plate 2 is coated with a metal conductive shielding coating. The principle is to use the conductivity and electromagnetic shielding properties of metal to achieve the shielding function by reflecting and absorbing external electromagnetic interference signals. The metal components in the coating can generate induced current under the action of external electromagnetic interference. The reverse magnetic field generated by the induced current cancels out the external interference magnetic field, thereby achieving the shielding effect.

[0033] The implementation principle of a cable tray in this application embodiment is as follows: During the installation and cable fixing stage of the cable tray, the cable is first placed on the lower clamping block 11 in the base plate 1. The outer walls of the lower clamping block 11 and the upper clamping block 12 are provided with arc-shaped grooves 13 with different inner diameters to accommodate various specifications of cables. After the cable is embedded into the arc-shaped groove 13, the cover plate 2 is installed. When installing the cover plate 2, since the bottom surfaces of the barbs 6 on both sides of the bottom of the cover plate 2 are inclined, and the top surfaces of the buckles 4 at the top of the elastic plates 3 on both sides of the bottom of the base plate 1 are also inclined, when the cover plate 2 is snapped down, the barbs 6 contact the buckles 4. During the process of pressing down the cover plate 2, the barbs 6 slide along the inclined surface of the buckles 4, pushing the elastic plates 3 to undergo elastic deformation. At the same time, as the cover plate 2 is continuously pressed down, the slider 17, which is slidably connected to the guide rail 16 on the bottom inner wall of the cover plate 2, is also engaged. The cable slides along the guide rail 16 due to the squeezing action of the hook 6 and the buckle 4. The connecting block 18 at the bottom of the slider 17 drives the connecting rod 19 to rotate. The bottom end of the connecting rod 19 is hinged to the top of the upper clamping block 12, which causes the upper clamping block 12 to move downward and press the cable tightly onto the lower clamping block 11. During this process, the spring 22 on the outer wall of the slide rod 21 is in a compressed state. The elastic force provided by the spring 22 can assist the connecting rod 19 to press the upper clamping block 12 down stably, so that the upper clamping block 12 and the lower clamping block 11 are tightly attached to the cable, which enhances the clamping force on the cable and ensures that the cable will not loosen or shift during the operation of the cable tray. When the hook 6 is fully engaged with the buckle 4, the elastic sheet 3 recovers part of its deformation, which further enhances the stability of the engagement. The limit block 7 is initially fixed to both ends of the hook 6 by the screw 9. Therefore, after the bottom plate 1 and the cover plate 2 are engaged, they cannot be pulled horizontally.

[0034] When it is necessary to disassemble the cable tray or inspect the cable, first use a screwdriver to loosen the two screws 9 at one end of the cover plate 2, remove the limit block 7 from the barb 6, then pull the pull plate 15 on the top of the upper clamping block 12. The pull plate 15 pulls the upper clamping block 12 up through the connecting rod 14. During the upward movement of the upper clamping block 12, the clamping mechanism quickly and smoothly releases the clamping state on the cable. Finally, pull the cover plate 2 outward horizontally, and the barb 6 can smoothly disengage from the buckle 4, realizing the separation of the cover plate 2 from the base plate 1, thus facilitating the inspection or replacement of the cable.

[0035] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.

[0036] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

[0037] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cable tray bridge comprising a bottom plate (1) and a cover plate (2), characterized in that: The base plate (1) and the cover plate (2) are connected by a snap-fit ​​assembly. The base plate (1) and the cover plate (2) are provided with a lower clamping block (11) and an upper clamping block (12). Multiple upper clamping blocks (12) are connected to the cover plate (2) by a pressing mechanism. The snap-fit ​​assembly includes multiple elastic pieces (3) fixedly connected to the top outer wall of the two sides of the base plate (1). The top of the multiple elastic pieces (3) is folded outward to form a buckle (4). The top surface of the buckle (4) is inclined. The bottom two sides of the cover plate (2) are folded inward to form a barb (6). The bottom surface of the barb (6) is inclined. The two barbs (6) are snapped with the multiple buckles (4). Multiple limiting blocks (7) are provided at both ends of the cover plate (2). The limiting blocks (7) are embedded in the inside of the barbs (6). The top of the limiting blocks (7) is provided with a screw hole (8). Multiple screws (9) are inserted into the top outer wall of the cover plate (2). The bottom end of the screw (9) is threaded to the inner wall of the screw hole (8).

2. A cable tray bridge according to claim 1, characterized in that: The bottom outer wall of the lower clamping block (11) is fixedly connected with a plurality of fixing rods (10), and the bottom ends of the plurality of fixing rods (10) are fixedly connected to the bottom inner wall of the base plate (1). The outer wall of the lower clamping block (11) opposite to the upper clamping block (12) is provided with a plurality of arc grooves (13) with different inner diameters.

3. A cable tray bridge as claimed in claim 1, characterized in that: The clamping mechanism includes guide rails (16), connecting rods (19), fixing plates (20), sliding rods (21) and springs (22). Multiple guide rails (16) are fixedly connected to the bottom inner wall of the cover plate (2). Each pair of adjacent guide rails (16) corresponds to the upper clamping block (12). Two sliders (17) are slidably connected to the outer wall of the guide rails (16). A connecting block (18) is fixedly connected to the bottom outer wall of the slider (17). Two connecting rods (19) are rotatably connected to two connecting blocks (18) respectively. The bottom end of the connecting rod (19) is hinged to the top outer wall of the upper clamping block (12).

4. A cable tray bridge according to claim 3, characterized in that: Multiple fixing plates (20) are fixedly connected to the bottom inner wall of the cover plate (2). Every two fixing plates (20) are located at both ends of the guide rail (16). The slide rod (21) is slidably connected to the inner wall of the fixing plate (20), and one end of it is fixedly connected to the connecting block (18). The spring (22) is sleeved on the outer wall of the slide rod (21) and is located between the connecting block (18) and the fixing plate (20).

5. A cable tray bridge according to claim 4, characterized in that: A telescopic rod (23) is fixedly installed on the outer wall of the fixed plate (20), and the telescopic end of the telescopic rod (23) away from the fixed plate (20) is fixedly connected to the outer wall of the slider (17).

6. A cable tray bridge as claimed in claim 1, characterized in that: The top outer wall of the upper clamping block (12) is fixedly connected to two connecting rods (14), and the top ends of the multiple connecting rods (14) penetrate the cover plate (2) and are fixedly connected to a pull plate (15).

7. A cable tray bridge as claimed in claim 1, characterized in that: Multiple heat dissipation holes (5) are formed between the multiple elastic sheets (3).

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