Weak electric engineering cable bridge
By introducing fixing and installation mechanisms into the cable tray, quick fixing and disassembly of the cover are achieved using spring clips and limit blocks, and boltless connection of multi-section cable boxes is achieved using telescopic rods and limit rods. This solves the problem of inconvenient installation in the existing technology and improves the ease of operation and installation stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 武汉恒创辉科技有限公司
- Filing Date
- 2025-08-04
- Publication Date
- 2026-06-23
Smart Images

Figure CN224401097U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of cable tray technology, and more specifically, to a cable tray for low-voltage engineering. Background Technology
[0002] Cable trays are structures used to support and protect cables. They are widely used for cable arrangement and support, effectively preventing cables from suffering mechanical damage and environmental interference. They also enable zoned management of cables, ensuring the safety of wiring and the convenience of maintenance. Cable trays have a wide range of applications, covering commercial and residential places, public buildings, and various infrastructures. In addition, they also play an important role in transportation, industry, and other fields.
[0003] In the existing technology with publication number CN221669505U, the cable box is installed using an installation mechanism and mounted on the ceiling using a bracket assembly. However, whether it is fixing the cable box to the cover or connecting two cable boxes together, bolts are still used with threaded holes for installation. This results in the use of many bolts when installing multiple cable boxes, and additional tools are required during installation, which is inconvenient. Therefore, this application provides a cable tray for low-voltage engineering to meet the requirements. Utility Model Content
[0004] The technical problem this utility model aims to solve is to provide a cable tray for low-voltage engineering to address the shortcomings of the existing technology published in CN221669505U, which uses an installation mechanism to install cable boxes and a bracket assembly to mount the cable boxes on the ceiling. However, whether it is fixing the cable box to the cover or connecting two cable boxes together, bolts with threaded holes are still used for installation. This results in the use of many bolts when installing multiple cable boxes, requiring additional tools during installation, which is quite inconvenient.
[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution:
[0006] A low-voltage cable tray includes a cable box with grooves on both sides of its top. A cover is mounted on the top of the cable box, and two fixing mechanisms that fit and can be inserted into the grooves are mounted on the bottom of the cover. Each fixing mechanism includes a connecting block fixedly connected to the bottom of the cover, a protective block fixedly connected to the bottom of the connecting block, and a "V"-shaped spring piece fixedly connected to one side of the bottom of the protective block. The end of the spring piece away from the protective block is bent. A spring is fixedly connected to the inner wall of the bottom of the groove, and a protective plate is also fixedly connected to the inner wall of the bottom of the groove to protect and limit the spring. The top of the protective block can abut against the bottom of the protective plate, and the spring piece can abut against the side of the protective plate away from the spring. A limit stop is fixedly connected to the inner wall of the cable box, and the bottom of the limit stop can abut against the bent end of the spring piece.
[0007] Preferably, a pressing block is slidably connected to the side of the cable box, extending through one side of the cable box into the groove, and the pressing block can abut against one side of the spring piece.
[0008] Preferably, a plurality of telescopic rods are fixedly connected to the bottom of the box cover, and a fixed top block is fixedly connected to the end of each telescopic rod away from the box cover. A fixed bottom block is fixedly connected to the inner wall of the bottom of the cable box, and the fixed top block can abut against the fixed bottom block.
[0009] Preferably, the bottom of the lid is fixedly connected to two limiting blocks for assisting the installation position of the lid, and the limiting blocks are provided with inclined surfaces on the opposite sides.
[0010] Preferably, the bottom of the cable box is fixedly connected to multiple card frames, the inside of the card frames is fitted with a support strip, the top two sides of the support strip are fixedly connected to support rods, and two limiting plates for limiting the card frames and the cable box are fixedly connected to the support strip.
[0011] Preferably, each end of the cable box is equipped with a mounting mechanism that can be connected to other cable boxes. The mounting mechanism includes a fixing plate that is fixedly connected to the cable box. A protrusion one and a protrusion two are fixedly connected to the side of the fixing plate away from the cable box. A slider is slidably connected to the fixing plate.
[0012] Preferably, a limiting rod is slidably connected to the top of the slider, and the limiting rod can be inserted between the first protrusion and the second protrusion.
[0013] Preferably, telescopic rods two are fixedly connected to both sides of the end of the cable box away from the fixed plate, and a retainer block is fixedly connected to the end of the telescopic rods two away from the cable box. The retainer block can be adapted to the space between the first protrusion and the second protrusion.
[0014] Compared with the prior art, this utility model has at least the following beneficial effects:
[0015] In the above solution, by setting a fixing mechanism, when the cover is installed on the cable box, the connecting block can be aligned with the groove, causing the protective block and the spring to be inserted into the groove together. The side of the spring will retract when it contacts the limiting block, and the bottom of the protective block will compress the spring after insertion until it abuts against the top of the protective plate. At this time, the side of the spring will no longer contact the limiting block, causing the spring to rebound and expand, allowing the bent end of the spring to abut against the bottom of the limiting block, trapping the spring inside the groove. This prevents the connecting block from moving up and down, thus fixing the cover to the cable box. At the same time, the rebounding expansion of the spring will also contact the pressing block, causing the pressing block to slide outwards from the cable box. To remove the cover from the cable box, simply press the pressing block inwards, causing one side of the spring clip to retract. The bent end of the spring clip will gradually disengage from the bottom of the limit block. After disengagement, the spring will return to its original position, causing the protective block and the spring clip to move upwards. During this movement, the bent end of the spring clip will abut against the limit block until the spring clip is completely pulled out of the groove. The cover will then be separated from the cable box. This design allows for easier securing of the cable box and cover without the need for bolts, simplifying the operator's work. Disassembly is also simple; just press the pressing block to separate the cable box and cover. The design is simple and easy to use.
[0016] By setting a fixed top block and a fixed bottom block, during the installation of the cover on the cable box, the cable can be placed on the fixed bottom block. When the cover moves downwards towards the cable box, the fixed top block will contact the cable on the fixed bottom block, squeezing and fixing the cable. The fixed top block will retract the telescopic rod according to the cable size. At the same time, when the cover moves, the inclined surface of the limiting block will contact the inner wall of the cable box, so that the cover can be kept in the middle of the cable box, which facilitates the contact between the fixed top block and the cable on the fixed bottom block. By setting a support rod and a support strip, the end of the support rod away from the support strip can be installed on the ceiling. Before placing the cable, the clip frame at the bottom of the cable box is placed on the support strip, so that it is positioned between the limiting plates, which can stabilize the position of the cable box and make it easy to place the cable on the fixed bottom block inside the cable box.
[0017] By setting up an installation mechanism, when two cable boxes need to be installed together, the clip at one end of one cable box can be stretched outwards, causing the second telescopic rod to extend. Then, the end with the clip is aligned with the end of the other cable box with the fixing plate, and they are brought together so that the end of the clip is positioned between protrusions one and two. Then, the clip is pressed down, causing the second telescopic rod to retract inwards. The clip will then engage with the gap between protrusions one and two, completing the installation connection of the two cable boxes. At this point, the slider can be slid down until the protrusion... Between block one and protrusion two, the other block and telescopic rod two are restricted from extending. Then, the limiting rod slides down on the slider. As it slides, the limiting rod enters the gap between protrusion one and protrusion two and abuts against the top of the other block, thus limiting the slider. The advantage of this is that two cable boxes can be installed together without using bolts. The slider limits the other block and telescopic rod two, and then the limiting rod limits the slider. The installation effect is firm, saving the time of using additional tools and bolts for separate installation, and making it more convenient for workers. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of cable trays for low-voltage electrical engineering.
[0019] Figure 2 This is a side view of the cable tray structure for low-voltage electrical engineering.
[0020] Figure 3 This is a schematic diagram of the cable box after a side sectional view.
[0021] Figure 4 for Figure 3 Enlarged structural diagram at point A in the middle;
[0022] Figure 5 This is a three-dimensional enlarged structural diagram of the installation mechanism;
[0023] Figure 6 This is a three-dimensional enlarged schematic diagram of the limiting rod.
[0024] The diagram shows: 1. Cable box; 2. Box cover; 3. Limiting block; 4. Fixing mechanism; 41. Connecting block; 42. Protective block; 43. Spring; 44. Limiting stop; 45. Protective plate; 46. Spring; 47. Pressing block; 5. Installation mechanism; 51. Fixing plate; 52. Protrusion 1; 53. Protrusion 2; 54. Slider; 55. Limiting rod; 6. Telescopic rod 1; 7. Fixed top block; 8. Fixed bottom block; 9. Support rod; 10. Support strip; 11. Limiting plate; 12. Clip frame; 13. Telescopic rod 2; 14. Clip; 15. Groove. Detailed Implementation
[0025] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model.
[0026] Therefore, the following detailed description of the embodiments of this utility model is not intended to limit the scope of the claimed utility model, but merely to illustrate some embodiments of the utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without inventive effort are within the scope of protection of this utility model.
[0027] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.
[0028] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0029] like Figure 1 , Figure 3 and Figure 4 As shown, an embodiment of this utility model provides a cable tray for low-voltage engineering, including a cable box 1. The cable box 1 has grooves 15 on both sides of its top. A cover 2 is installed on the top of the cable box 1. Two fixing mechanisms 4, adapted to and inserted into the grooves 15, are installed on the bottom of the cover 2. Each fixing mechanism 4 includes a connecting block 41 fixedly connected to the bottom of the cover 2. A protective block 42 is fixedly connected to the bottom of the connecting block 41. A "V"-shaped spring piece 43 is fixedly connected to one side of the bottom of the protective block 42. The end of the spring piece 43 away from the protective block 42 is bent. The grooves 1... A spring 46 is fixedly connected to the bottom inner wall of the 5. A protective plate 45 is also fixedly connected to the bottom inner wall of the groove 15 to protect and limit the spring 46. The top of the protective block 42 can abut against the bottom of the protective plate 45. The spring piece 43 can abut against the side of the protective plate 45 away from the spring 46. A limit block 44 is fixedly connected to the inner wall of the cable box 1. The bottom of the limit block 44 can abut against the bent end of the spring piece 43. A pressing block 47 is slidably connected to the side of the cable box 1, extending through one side of the cable box 1 into the groove 15. The pressing block 47 can abut against one side of the spring piece 43.
[0030] By setting the fixing mechanism 4, when the cover 2 is installed on the cable box 1, the connecting block 41 can be aligned with the groove 15, causing the protective block 42 and the spring piece 43 to be inserted into the groove 15 together. The side of the spring piece 43 will retract when it contacts the limiting block 44. After the protective block 42 is inserted, the bottom will compress the spring 46 until it abuts against the top of the protective plate 45. At this time, the side of the spring piece 43 will no longer contact the limiting block 44, causing the spring piece 43 to rebound and expand, so that the bent end of the spring piece 43 abuts against the bottom of the limiting block 44, trapping the spring piece 43 inside the groove 15. This prevents the connecting block 41 from moving up and down, thus fixing the cover 2 on the cable box 1. At the same time, the rebound expansion of the spring piece 43 will also contact the pressing block 47, causing the pressing block 47 to slide outwards from the cable box 1. When it is necessary to remove the cover 2 from the cable box 1, simply press the pressing block 47 inward, causing one side of the spring piece 43 to retract. The bent end of the spring piece 43 will gradually disengage from the bottom of the limiting block 44. After disengagement, the spring 46 will return to its original position, causing the protective block 42 and the spring piece 43 to move upward. During the movement, the bent end of the spring piece 43 will abut against the limiting block 44 until the spring piece 43 is completely pulled out from the inside of the groove 15, and the cover 2 will be separated from the cable box 1. The advantage of this is that it makes it easier to fix the cable box 1 and the cover 2 together, and no bolts are used in the process, thus simplifying the operation of the staff. When disassembling, only pressing the pressing block 47 is needed to separate the cable box 1 and the cover 2. The structure is simple and easy to use.
[0031] like Figure 1 and Figure 2 As shown, multiple telescopic rods 6 are fixedly connected to the bottom of the cover 2. The end of the telescopic rod 6 away from the cover 2 is fixedly connected to the same fixed top block 7. The bottom inner wall of the cable box 1 is fixedly connected to a fixed bottom block 8. The fixed top block 7 can abut against the fixed bottom block 8. The bottom of the cover 2 is fixedly connected to two limiting blocks 3 for assisting the installation position of the cover 2. The limiting blocks 3 have inclined surfaces on the opposite sides. The bottom of the cable box 1 is fixedly connected to multiple clip frames 12. The inside of the clip frames 12 is fitted with a support strip 10. The top two sides of the support strip 10 are fixedly connected to support rods 9. The support strip 10 is fixedly connected to two limiting plates 11 for limiting the clip frames 12 and the cable box 1.
[0032] By setting a fixed top block 7 and a fixed bottom block 8, during the installation of the cover 2 on the cable box 1, the cable can be placed on the fixed bottom block 8. When the cover 2 moves downwards towards the cable box 1, the fixed top block 7 will contact the cable on the fixed bottom block 8, squeezing and fixing the cable. The fixed top block 7 will retract the telescopic rod 6 according to the cable size. At the same time, when the cover 2 moves, the inclined surface of the limiting block 3 will contact the inner wall of the cable box 1, so that the cover 2 can be located in the middle of the cable box 1, which facilitates the contact between the fixed top block 7 and the cable on the fixed bottom block 8. By setting a support rod 9 and a support strip 10, the end of the support rod 9 away from the support strip 10 can be installed on the ceiling. Before placing the cable, the clip frame 12 at the bottom of the cable box 1 is placed on the support strip 10, so that it is located between the limiting plates 11, which can stabilize the position of the cable box 1 and facilitate the placement of the cable on the fixed bottom block 8 inside the cable box 1.
[0033] like Figures 1-3 , Figure 5 and Figure 6 As shown, each end of the cable box 1 is equipped with a mounting mechanism 5 that can be connected to other cable boxes 1. The mounting mechanism 5 includes a fixing plate 51 that is fixedly connected to the cable box 1. On the side of the fixing plate 51 away from the cable box 1, there are two protrusions, a first protrusion 52 and a second protrusion 53. A slider 54 is slidably connected to the fixing plate 51. A limit rod 55 is slidably connected to the top of the slider 54. The limit rod 55 can be inserted between the first protrusion 52 and the second protrusion 53. On each end of the cable box 1 away from the fixing plate 51, there are two telescopic rods 13. On the end of the telescopic rod 13 away from the cable box 1, there is a block 14. The block 14 can be adapted to the space between the first protrusion 52 and the second protrusion 53.
[0034] By setting the installation mechanism 5, when it is necessary to install two cable boxes 1 together, the retaining block 14 at one end of one cable box 1 can be stretched outward, causing the telescopic rod 2 13 to extend. Then, the end with the retaining block 14 is aligned with the end of the other cable box 1 with the fixing plate 51 and they are brought together, so that the end of the retaining block 14 is located between the protrusion 1 52 and the protrusion 2 53. Then, the retaining block 14 is pressed down, causing the telescopic rod 2 13 to retract inward. The retaining block 14 will then be pressed into the gap between the protrusion 1 52 and the protrusion 2 53, completing the installation connection of the two cable boxes 1. At this time, the slider 54 is slid, allowing the slider 54 to slide to the protrusion 53. Between block 1 52 and protrusion 2 53, the other block 14 and telescopic rod 2 13 are restricted from extending. Then, the limiting rod 55 slides down on the slider 54. As it slides, the limiting rod 55 enters the gap between protrusion 1 52 and protrusion 2 53 and abuts against the top of the other block 14, thus limiting the slider 54. The advantage of this is that two cable boxes 1 can be installed together without using bolts. The slider 54 limits the other block 14 and telescopic rod 2 13, and then the limiting rod 55 limits the slider 54. The installation effect is firm, saving the time of using additional tools and bolts for separate installation, and making it convenient for workers to operate.
[0035] The technical solution provided by this utility model, by setting a fixing mechanism 4, allows the connecting block 41 to be aligned with the groove 15 when the cover 2 is installed on the cable box 1. This causes the protective block 42 and the spring piece 43 to be inserted into the groove 15 together. The side of the spring piece 43 retracts when it contacts the limiting block 44. After insertion, the bottom of the protective block 42 compresses the spring 46 until it abuts against the top of the protective plate 45. At this point, the side of the spring piece 43 no longer contacts the limiting block 44, causing the spring piece 43 to spring back and expand, allowing the bent end of the spring piece 43 to abut against the bottom of the limiting block 44, trapping the spring piece 43 inside the groove 15. This prevents the connecting block 41 from moving up and down, thus fixing the cover 2 on the cable box 1. Simultaneously, the spring piece 43's spring back and expansion also contacts the pressing block 47, causing the pressing block 47 to move towards the cable box 1. The outer side of the cable box 1 slides. When it is necessary to remove the cover 2 from the cable box 1, simply press the pressing block 47 inward, causing one side of the spring piece 43 to retract. The bent end of the spring piece 43 will gradually disengage from the bottom of the limiting block 44. After disengagement, the spring 46 will return to its original position, causing the protective block 42 and the spring piece 43 to move upward. During the movement, the bent end of the spring piece 43 will abut against the limiting block 44 until the spring piece 43 is completely pulled out from the inside of the groove 15. The cover 2 will then be separated from the cable box 1. The advantage of this is that it makes it easier to fix the cable box 1 and the cover 2 together without using bolts, thus simplifying the operation for the staff. During disassembly, simply pressing the pressing block 47 is enough to separate the cable box 1 and the cover 2. The structure is simple and easy to use.
[0036] By setting a fixed top block 7 and a fixed bottom block 8, during the installation of the cover 2 on the cable box 1, the cable can be placed on the fixed bottom block 8. When the cover 2 moves downwards towards the cable box 1, the fixed top block 7 will contact the cable on the fixed bottom block 8, squeezing and fixing the cable. The fixed top block 7 will retract the telescopic rod 6 according to the cable size. At the same time, when the cover 2 moves, the inclined surface of the limiting block 3 will contact the inner wall of the cable box 1, so that the cover 2 can be located in the middle of the cable box 1, which facilitates the contact between the fixed top block 7 and the cable on the fixed bottom block 8. By setting a support rod 9 and a support strip 10, the end of the support rod 9 away from the support strip 10 can be installed on the ceiling. Before placing the cable, the clip frame 12 at the bottom of the cable box 1 is placed on the support strip 10, so that it is located between the limiting plates 11, which can stabilize the position of the cable box 1 and facilitate the placement of the cable on the fixed bottom block 8 inside the cable box 1.
[0037] By setting the installation mechanism 5, when it is necessary to install two cable boxes 1 together, the retaining block 14 at one end of one cable box 1 can be stretched outward, causing the telescopic rod 2 13 to extend. Then, the end with the retaining block 14 is aligned with the end of the other cable box 1 with the fixing plate 51 and they are brought together, so that the end of the retaining block 14 is located between the protrusion 1 52 and the protrusion 2 53. Then, the retaining block 14 is pressed down, causing the telescopic rod 2 13 to retract inward. The retaining block 14 will then be pressed into the gap between the protrusion 1 52 and the protrusion 2 53, completing the installation connection of the two cable boxes 1. At this time, the slider 54 is slid, allowing the slider 54 to slide to the protrusion 53. Between block 1 52 and protrusion 2 53, the other block 14 and telescopic rod 2 13 are restricted from extending. Then, the limiting rod 55 slides down on the slider 54. As it slides, the limiting rod 55 enters the gap between protrusion 1 52 and protrusion 2 53 and abuts against the top of the other block 14, thus limiting the slider 54. The advantage of this is that two cable boxes 1 can be installed together without using bolts. The slider 54 limits the other block 14 and telescopic rod 2 13, and then the limiting rod 55 limits the slider 54. The installation effect is firm, saving the time of using additional tools and bolts for separate installation, and making it convenient for workers to operate.
[0038] All technical features in this embodiment can be freely combined according to actual needs.
[0039] The above embodiments are preferred implementations of this utility model. In addition, this utility model can also be implemented in other ways. Any obvious substitutions without departing from the concept of this technical solution are within the protection scope of this utility model.
Claims
1. A cable tray for low-voltage engineering, characterized in that, include: Cable box (1), the top two sides of the cable box (1) are provided with grooves (15), the top of the cable box (1) is provided with a cover (2), and the bottom of the cover (2) is provided with two fixing mechanisms (4) that are adapted to the grooves (15) and can be inserted into the grooves (15). The fixing mechanism (4) includes a connecting block (41) fixedly connected to the bottom of the cover (2). A protective block (42) is fixedly connected to the bottom of the connecting block (41). A "V" shaped spring piece (43) is fixedly connected to one side of the bottom of the protective block (42). The end of the spring piece (43) away from the protective block (42) is bent. A spring (46) is fixedly connected to the bottom inner wall of the groove (15). A protective plate (45) is also fixedly connected to the bottom inner wall of the groove (15) to protect and limit the spring (46). The top of the protective block (42) can abut against the bottom of the protective plate (45). The spring piece (43) can abut against the side of the protective plate (45) away from the spring (46). A limit stop (44) is fixedly connected to the inner wall of the cable box (1). The bottom of the limit stop (44) can abut against the bent end of the spring piece (43).
2. The cable tray for low-voltage engineering according to claim 1, characterized in that, The side of the cable box (1) is slidably connected to a pressing block (47) that extends through one side of the cable box (1) into the groove (15), and the pressing block (47) can abut against one side of the spring piece (43).
3. The cable tray for low-voltage engineering according to claim 1, characterized in that, The bottom of the cover (2) is fixedly connected to a plurality of telescopic rods (6), and the end of the telescopic rod (6) away from the cover (2) is fixedly connected to the same fixed top block (7). The bottom inner wall of the cable box (1) is fixedly connected to a fixed bottom block (8), and the fixed top block (7) can abut against the fixed bottom block (8).
4. The cable tray for low-voltage engineering according to claim 1, characterized in that, The bottom of the lid (2) is fixedly connected to two limiting blocks (3) for assisting the installation position of the lid (2). The limiting blocks (3) are provided with inclined surfaces on the side that is far apart from each other.
5. The cable tray for low-voltage engineering according to claim 1, characterized in that, The bottom of the cable box (1) is fixedly connected to multiple card frames (12), and a support strip (10) is snapped into the inside of the card frame (12). Support rods (9) are fixedly connected to both sides of the top of the support strip (10), and two limiting plates (11) for limiting the card frame (12) and the cable box (1) are fixedly connected to the support strip (10).
6. The cable tray for low-voltage engineering according to claim 1, characterized in that, The cable box (1) is equipped with an installation mechanism (5) on both sides of one end, which can be connected to other cable boxes (1). The installation mechanism (5) includes a fixing plate (51) fixedly connected to the cable box (1). The fixing plate (51) is fixedly connected to a protrusion one (52) and a protrusion two (53) on the side away from the cable box (1). A slider (54) is slidably connected on the fixing plate (51).
7. The cable tray for low-voltage engineering according to claim 6, characterized in that, The top of the slider (54) is slidably connected to a limiting rod (55), which can be inserted between the first protrusion (52) and the second protrusion (53).
8. The cable tray for low-voltage engineering according to claim 6, characterized in that, The cable box (1) is fixedly connected to two telescopic rods (13) on both sides of the end away from the fixed plate (51). The telescopic rod (13) is fixedly connected to a block (14) at the end away from the cable box (1). The block (14) can be adapted to the space between the first protrusion (52) and the second protrusion (53).