Connecting structure of double-ladder cable bridge
By introducing splicing and locking components into the double-ladder cable tray, the problem of time-consuming installation was solved, enabling rapid installation and improving the load-bearing capacity and stability of the cable tray.
Patent Information
- Application Number
- CN202520437429.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-13
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-03-13
AI Technical Summary
The installation process of existing double-ladder cable trays is time-consuming, resulting in a significant time commitment during installation, impacting project delivery timelines and increasing labor and equipment costs.
The two cable tray bodies are fixedly connected by splicing and locking components, which reduces the difficulty of installation, and additional structural support and deformation resistance are provided by reinforcement components.
It reduces installation and maintenance time, lowers labor costs, improves installation efficiency, and enhances the load-bearing capacity and stability of the cable tray.
Smart Images

Figure CN223928029U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of connection structure of double ladder cable trays, specifically relating to the connection structure of double ladder cable trays. Background Technology
[0002] Double-ladder cable trays are a special type of cable tray design, mainly used to support and fix cable lines. They are characterized by a double-ladder structure, which allows the tray to withstand greater weight and is suitable for cable laying scenarios with large spans. However, the installation process of the cable trays requires a lot of time, thus extending the overall construction period.
[0003] According to the public announcement (CN213693012U), a novel double-ladder cable tray is disclosed. This technology discloses a technical solution that includes "a cable tray and a cable tray support, wherein the cable tray support is connected to the cable tray, the bottom end of the cable tray is provided with a horizontal light channel, the bottom end of the cable tray support is provided with a laser emitter and a photoelectric sensor, and the photoelectric sensor is connected to an alarm device, etc., which has the technical effect of reducing dangerous accidents caused by cable tray damage and ensuring personal safety."
[0004] In this existing design, due to the problem that the installation process requires a lot of time, the existing technology cannot quickly connect and install the double ladder cable tray. This results in the installation process taking up a lot of time, which may force the subsequent procedures to be delayed, affecting the project delivery cycle. Furthermore, long-term installation requires a continuous investment of construction personnel and equipment, increasing labor costs and equipment rental costs.
[0005] Therefore, a connection structure for a double-ladder cable tray was designed to solve the above problems. Utility Model Content
[0006] To address the problems mentioned in the background section, this invention provides a connection structure for a double-ladder cable tray. This device allows for the fixed connection of the main bodies of two cable trays, reducing the difficulty of installing the double-ladder cable tray, decreasing installation and maintenance time and labor costs, and thus solving the problem of excessive time consumption during installation.
[0007] To achieve the above objectives, the present invention provides the following technical solution: a connection structure for a double-ladder cable tray, comprising a body, and further comprising splicing components and locking components disposed on the surface of the body;
[0008] The splicing assembly includes a first bracket fixedly connected to the middle position of the main body, and a right bracket and a left bracket fixed to both ends of the main body. The surface of the right bracket is symmetrically fixedly connected with a locking strip, and the surface of the left bracket is provided with a locking groove that cooperates with the locking strip.
[0009] The locking assembly includes connecting blocks symmetrically fixed to the surface of the left bracket, a connecting groove that mates with the connecting blocks on the surface of the right bracket, a locking block symmetrically arranged on the surface of the left bracket, a sliding groove that mates with the locking block on the surface of the right bracket, the locking block being slidably connected to the right bracket through the sliding groove, and a bidirectional threaded rod being threadedly connected to the surface of the locking block.
[0010] As a preferred connection structure for the double ladder cable tray of this utility model, the first bracket, the right bracket, and the left bracket are in the shape of a "U".
[0011] As a preferred connection structure for the double ladder cable tray of this utility model, the surface of the connecting block is provided with an oblique angle, and a limiting block is fixedly connected to one end of the connecting block near the oblique angle. The surface of the locking block is provided with a limiting groove that cooperates with the connecting block, the oblique angle and the limiting block.
[0012] As a preferred connection structure for the double-ladder cable tray of this utility model, a compression spring is fixedly connected to the opposite side of the locking block.
[0013] As a preferred connection structure for the double-ladder cable tray of this utility model, the surface of the bidirectional threaded rod is provided with a regular hexagonal square groove, and the locking block is designed as a regular hexagon.
[0014] As a preferred connection structure for the double-ladder cable tray of this utility model, both ends of the main body are fixedly connected with sealing plates.
[0015] As a preferred connection structure for the double-ladder cable tray of this utility model, it further includes a reinforcing component disposed on the surface of the main body;
[0016] The reinforcement component includes a right semi-circular lock shell and a left semi-circular lock shell disposed on the surface of the main body. Bolts are threadedly connected to the surfaces of the right semi-circular lock shell and the left semi-circular lock shell. The right semi-circular lock shell is fixed to the surface of the right bracket by bolts, and the left semi-circular lock shell is fixed to the surface of the left bracket by bolts. A right semi-circular lock cylinder and a left semi-circular lock cylinder are disposed on the surfaces of the right semi-circular lock shell and the left semi-circular lock shell. Arc grooves that mate with the right semi-circular lock cylinder and the left semi-circular lock cylinder are formed on the surfaces of the right semi-circular lock shell and the left semi-circular lock shell.
[0017] As a preferred connection structure for the double-ladder cable tray of this utility model, the surfaces of the right semicircular lock shell and the left semicircular lock shell are both fixedly connected with arc-shaped blocks, and the surfaces of the right semicircular lock core and the left semicircular lock core are both provided with arc-shaped grooves that cooperate with the arc-shaped blocks.
[0018] As a preferred connection structure for the double-ladder cable tray of this utility model, handles are fixedly connected to the surfaces of both the right semi-circular lock core and the left semi-circular lock core.
[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: the addition of a locking component in this application can fix the main body of the two cable trays together, reducing the difficulty of installing the double ladder cable tray and reducing the time and personnel costs for installation and maintenance. At the same time, the addition of a reinforcement component can strengthen the connection of the cable tray, maintain the continuity of each section of the cable tray, provide additional structural support, and increase the overall load-bearing capacity and deformation resistance of the cable tray. Attached Figure Description
[0020] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0021] Figure 1 This is a schematic diagram of the overall design of this utility model;
[0022] Figure 2 This is a schematic diagram of the structure of the first bracket in this utility model;
[0023] Figure 3 This is a schematic diagram of the right bracket in this utility model;
[0024] Figure 4 In this utility model Figure 3 Enlarged structural diagram at point A;
[0025] Figure 5 This is a schematic diagram of the connecting block in this utility model;
[0026] Figure 6 This is a schematic diagram of the right semi-circular lock shell in this utility model;
[0027] Figure 7 This is a schematic diagram of the right semi-circular lock core in this utility model;
[0028] Figure 8 This is a schematic diagram of the arc-shaped block in this utility model;
[0029] In the picture:
[0030] 1. Ontology;
[0031] 2. Splicing components; 21. First bracket; 22. Right bracket; 23. Left bracket; 24. Locking strip; 25. Locking slot;
[0032] 3. Locking assembly; 31. Connecting block; 32. Connecting groove; 33. Locking block; 34. Sliding groove; 35. Two-way threaded rod; 36. Angled angle; 37. Limiting block; 38. Limiting groove; 39. Compression spring; 310. Square groove; 311. Sealing plate;
[0033] 4. Reinforcing components; 41. Right semi-circular lock housing; 42. Left semi-circular lock housing; 43. Bolt; 44. Right semi-circular lock cylinder; 45. Left semi-circular lock cylinder; 46. Arc groove; 47. Arc block; 48. Arc groove; 49. Handle. Detailed Implementation
[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0035] Example 1
[0036] like Figure 1 As shown;
[0037] The connection structure of the double ladder cable tray includes the main body 1.
[0038] In this implementation plan: the existing main body 1 allows users to strengthen the bending performance of local areas through the inspection function of the maintenance area, greatly reducing manufacturing costs. At the same time, this inspection function can also reduce dangerous accidents caused by cable tray damage and ensure personal safety. For specific working process, refer to the technology disclosed in "CN213693012U discloses a new type of double ladder cable tray". However, in this existing design, due to the problem that the above-mentioned installation process requires a lot of time, this existing technology cannot quickly connect and install the double ladder cable tray, which leads to the installation process occupying a lot of time, which may force the subsequent processes to be delayed, affecting the project delivery cycle. Moreover, long-term installation requires continuous investment of construction personnel and equipment, increasing labor costs and equipment rental costs. In combination, this problem is obviously a real and difficult problem to solve. Therefore, in order to solve this technical problem, splicing component 2, locking component 3 and reinforcement component 4 are added to this application.
[0039] Furthermore:
[0040] like Figures 1 to 5 As shown:
[0041] In conjunction with the above: the connection structure of the double ladder cable tray also includes splicing component 2 and locking component 3 set on the surface of the main body 1;
[0042] The splicing component 2 includes a first bracket 21 fixedly connected to the middle position of the main body 1, and a right bracket 22 and a left bracket 23 fixed to both ends of the main body 1. The surface of the right bracket 22 is symmetrically fixedly connected with a locking strip 24, and the surface of the left bracket 23 is provided with a locking groove 25 that cooperates with the locking strip 24.
[0043] The locking assembly 3 includes connecting blocks 31 symmetrically fixed to the surface of the left bracket 23, connecting grooves 32 that mate with connecting blocks 31 on the surface of the right bracket 22, locking blocks 33 symmetrically arranged on the surface of the left bracket 23, sliding grooves 34 that mate with locking blocks 33 on the surface of the right bracket 22, locking blocks 33 slidingly connected to the right bracket 22 through sliding grooves 34, a bidirectional threaded rod 35 threadedly connected to the surface of locking blocks 33, a chamfer 36 on the surface of the connecting block 31, and a limiting block 37 fixedly connected to one end of the connecting block 31 near the chamfer 36, and a limiting groove 38 that mates with the connecting block 31, the chamfer 36 and the limiting block 37 on the surface of locking blocks 33.
[0044] In this implementation plan: When the operator connects and installs the main body 1, the operator first uses the locking strip 24 and the locking groove 25 to connect the right bracket 22 and the left bracket 23. This makes the connection between the two main bodies 1 more precise and faster. During the process of inserting the locking strip 24 into the locking groove 25, the left bracket 23 drives the connecting block 31 through the connecting groove 32 and into the interior of the right bracket 22. At this time, the operator manipulates the bidirectional threaded rod 35 to rotate, causing the two locking blocks 33 to move closer to each other, thereby causing the limiting groove 38 to fit with the connecting block 31, the bevel 36 and the limiting block 37, thus fixing the connecting block 31 with the locking block 33. This makes the connection between the right bracket 22 and the left bracket 23 more secure. The design of the bevel 36 and the limiting block 37 can reduce the smoothness of the surface of the connecting block 31, thereby making the cooperation between the connecting block 31 and the limiting groove 38 more complex and reducing the probability of the connecting block 31 disengaging from the limiting groove 38 during equipment use.
[0045] Furthermore:
[0046] In an optional embodiment, the first bracket 21, the right bracket 22, and the left bracket 23 are U-shaped structures.
[0047] In this embodiment, the "U"-shaped structure can increase the overall structural stability of the cable tray, prevent the cable tray from deforming or collapsing when bearing weight, and ensure the safe fixation of the cables.
[0048] Furthermore:
[0049] like Figure 5 As shown:
[0050] In an alternative embodiment, a compression spring 39 is fixedly connected to the opposite side of the latch 33.
[0051] In this embodiment: after the compression spring 39 is compressed to a certain limit, it will have a certain resistance, thereby reminding the operator to stop rotating the bidirectional threaded rod 35, and preventing the operator from continuously rotating the bidirectional threaded rod 35 and causing the locking block 33 to damage the connecting block 31.
[0052] Furthermore:
[0053] like Figure 5 As shown:
[0054] In an optional embodiment, the surface of the bidirectional threaded rod 35 is provided with a regular hexagonal square groove 310, and the locking block 33 is designed to be a regular hexagon.
[0055] In this embodiment, the design of having a regular hexagonal square groove 310 on the surface of the bidirectional threaded rod 35 makes the structure of the equipment more compact, and the operator can rotate the bidirectional threaded rod 35 with the corresponding tool. The design of the locking block 33 as a regular hexagon can effectively prevent the locking block 33 from rotating when the bidirectional threaded rod 35 rotates, so that the locking block 33 can slide steadily, thereby ensuring that the locking block 33 is in contact with the connecting block 31.
[0056] Furthermore:
[0057] like Figure 4 As shown:
[0058] In an optional embodiment, sealing plates 311 are fixedly connected to both ends of the body 1.
[0059] In this embodiment, the sealing plate 311 can help seal the space between the two bodies 1, protect the cable from the influence of the external environment, and maintain a dry and clean environment inside the cable tray.
[0060] Furthermore:
[0061] like Figures 6 to 8 As shown:
[0062] In an optional embodiment, a reinforcing component 4 is also included on the surface of the body 1;
[0063] The reinforcing component 4 includes a right semi-circular lock shell 41 and a left semi-circular lock shell 42 disposed on the surface of the main body 1. Bolts 43 are threadedly connected to the surfaces of the right semi-circular lock shell 41 and the left semi-circular lock shell 42. The right semi-circular lock shell 41 is fixed to the surface of the right bracket 22 by bolts 43, and the left semi-circular lock shell 42 is fixed to the surface of the left bracket 23 by bolts 43. A right semi-circular lock cylinder 44 and a left semi-circular lock cylinder 45 are disposed on the surfaces of the right semi-circular lock shell 41 and the left semi-circular lock shell 42. An arc groove 46 that mates with the right semi-circular lock cylinder 44 and the left semi-circular lock cylinder 45 is opened on the surfaces of the right semi-circular lock shell 41 and the left semi-circular lock cylinder 42. A handle 49 is fixedly connected to the surfaces of the right semi-circular lock cylinder 44 and the left semi-circular lock cylinder 45.
[0064] In this implementation plan: The operator holds the handles 49 on both sides with both hands, and then applies force clockwise and counterclockwise respectively. The force on the handles 49 causes the right semi-circular lock cylinder 44 and the left semi-circular lock cylinder 45 to rotate through the arc grooves 46 on the surfaces of the right semi-circular lock shell 41 and the left semi-circular lock shell 42 respectively, until the right semi-circular lock cylinder 44 rotates into the arc groove 46 of the left semi-circular lock shell 42, and the left semi-circular lock cylinder 45 rotates into the arc groove 46 of the right semi-circular lock shell 41. This results in the right semi-circular lock shell 41 and right semi-circular lock cylinder 44, and the left semi-circular lock shell 42 and left semi-circular lock cylinder 45, all having alternating positions (e.g., ...). Figure 2 This allows for the connection between the right semicircular lock housing 41 and the left semicircular lock housing 42, thereby reinforcing the connection between the right bracket 22 and the left bracket 23. This maintains the continuity of each section of the cable tray, provides additional structural support, and increases the overall load-bearing capacity and deformation resistance of the cable tray. Especially when the span is large or when carrying heavy cables, these components play an important supporting and stabilizing role.
[0065] Furthermore:
[0066] like Figure 8 As shown:
[0067] In an optional embodiment, arc-shaped blocks 47 are fixedly connected to the surfaces of the right semicircular lock shell 41 and the left semicircular lock shell 42, and arc-shaped grooves 48 that cooperate with the arc-shaped blocks 47 are opened on the surfaces of the right semicircular lock cylinder 44 and the left semicircular lock cylinder 45.
[0068] In this embodiment: during the sliding process of the right semicircular lock shell 41 and the left semicircular lock shell 42 on the surface of the right semicircular lock cylinder 44 and the left semicircular lock cylinder 45, the right semicircular lock shell 41 and the left semicircular lock shell 42 drive the arc-shaped block 47 on their surface to slide through the arc-shaped groove 48 on the surface of the right semicircular lock cylinder 44 and the left semicircular lock cylinder 45, which can provide a limiting and guiding function.
[0069] Working Principle: When the operator connects and installs the main body 1, they first use the locking strip 24 and the locking slot 25 to align the right bracket 22 and the left bracket 23. This allows for a more precise and faster connection between the two main bodies 1. During the insertion of the locking strip 24 into the locking slot 25, the left bracket 23 drives the connecting block 31 through the connecting groove 32 into the interior of the right bracket 22. At this point, the operator can use the corresponding tool to rotate the bidirectional threaded rod 35, causing the two locking blocks 33 to move closer together. This causes the limiting groove 38 to engage with the connecting block 31, the bevel 36, and the limiting block 37, thus fixing the connecting block 31 to the locking block 33 and making the connection between the right bracket 22 and the left bracket 23 more secure. The design of the bevel 36 and the limiting block 37 reduces the smoothness of the connecting block 31's surface, making the engagement between the connecting block 31 and the limiting groove 38 more complex and reducing the probability of the connecting block 31 disengaging from the limiting groove 38 during use. The sealing plate 311 helps to seal between the two main bodies 1, protecting the cable from external interference. To minimize environmental impact, the process also maintains a dry and clean environment inside the cable tray. Workers hold the handles 49 on both sides with both hands, then apply force clockwise and counterclockwise respectively. The force on the handles 49 causes the right semi-circular lock cylinder 44 and the left semi-circular lock cylinder 45 to rotate through the arc grooves 46 on the surfaces of the right semi-circular lock housing 41 and the left semi-circular lock housing 42, respectively, until the right semi-circular lock cylinder 44 rotates into the arc groove 46 of the left semi-circular lock housing 42, and the left semi-circular lock cylinder 45 rotates into the right semi-circular lock housing 41. Within the arc groove 46, the right semicircular lock shell 41 and the right semicircular lock cylinder 44, and the left semicircular lock shell 42 slide on the surfaces of the right semicircular lock cylinder 44 and the left semicircular lock cylinder 45. During this sliding process, the right semicircular lock shell 41 and the left semicircular lock shell 42 drive the arc-shaped blocks 47 on their surfaces to slide through the arc groove 48 on the surfaces of the right semicircular lock cylinder 44 and the left semicircular lock cylinder 45, which can provide limiting and guiding functions. The positions of the left semicircular lock shell 42 and the left semicircular lock cylinder 45 are staggered (e.g., ...). Figure 2 This allows for the connection between the right semicircular lock housing 41 and the left semicircular lock housing 42, thereby reinforcing the connection between the right bracket 22 and the left bracket 23. This maintains the continuity of each section of the cable tray, provides additional structural support, and increases the overall load-bearing capacity and resistance to deformation of the cable tray. These components play a crucial supporting and stabilizing role, especially when the span is large or when carrying heavy cables.
[0070] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A connection structure for a double-ladder cable tray, comprising a body (1), characterized in that: It also includes splicing components (2) and locking components (3) disposed on the surface of the body (1); The splicing component (2) includes a first bracket (21) fixedly connected to the middle position of the main body (1) and a right bracket (22) and a left bracket (23) fixed to both ends of the main body (1). The surface of the right bracket (22) is symmetrically fixedly connected with a locking strip (24), and the surface of the left bracket (23) is provided with a locking groove (25) that cooperates with the locking strip (24). The locking assembly (3) includes connecting blocks (31) symmetrically fixed to the surface of the left bracket (23), a connecting groove (32) that mates with the connecting block (31) on the surface of the right bracket (22), a locking block (33) symmetrically arranged on the surface of the left bracket (23), a sliding groove (34) that mates with the locking block (33) on the surface of the right bracket (22), the locking block (33) being slidably connected to the right bracket (22) through the sliding groove (34), and a bidirectional threaded rod (35) threadedly connected to the surface of the locking block (33).
2. The connection structure of the double-ladder cable tray according to claim 1, characterized in that: The first bracket (21), the right bracket (22) and the left bracket (23) are "U" shaped structures.
3. The connection structure of the double-ladder cable tray according to claim 1, characterized in that: The surface of the connecting block (31) is provided with an angle (36), and a limiting block (37) is fixedly connected to one end of the connecting block (31) near the angle (36). The surface of the locking block (33) is provided with a limiting groove (38) that cooperates with the connecting block (31), the angle (36) and the limiting block (37).
4. The connection structure of the double-ladder cable tray according to claim 1, characterized in that: A compression spring (39) is fixedly connected to the opposite side of the card block (33).
5. The connection structure of the double-ladder cable tray according to claim 1, characterized in that: The surface of the bidirectional threaded rod (35) is provided with a regular hexagonal square groove (310), and the locking block (33) is designed as a regular hexagon.
6. The connection structure of the double-ladder cable tray according to claim 1, characterized in that: Both ends of the main body (1) are fixedly connected to sealing plates (311).
7. The connection structure of the double-ladder cable tray according to claim 1, characterized in that: It also includes a reinforcing component (4) disposed on the surface of the body (1); The reinforcement component (4) includes a right semi-circular lock shell (41) and a left semi-circular lock shell (42) disposed on the surface of the main body (1). The surfaces of the right semi-circular lock shell (41) and the left semi-circular lock shell (42) are threaded with bolts (43). The right semi-circular lock shell (41) is fixed to the surface of the right bracket (22) by bolts (43), and the left semi-circular lock shell (42) is fixed to the surface of the left bracket (23) by bolts (43). The surfaces of the right semi-circular lock shell (41) and the left semi-circular lock shell (42) are provided with a right semi-circular lock cylinder (44) and a left semi-circular lock cylinder (45). The surfaces of the right semi-circular lock shell (41) and the left semi-circular lock shell (42) are provided with arc grooves (46) that cooperate with the right semi-circular lock cylinder (44) and the left semi-circular lock cylinder (45).
8. The connection structure of the double-ladder cable tray according to claim 7, characterized in that: The surfaces of the right semicircular lock shell (41) and the left semicircular lock shell (42) are fixedly connected with arc-shaped blocks (47), and the surfaces of the right semicircular lock cylinder (44) and the left semicircular lock cylinder (45) are provided with arc-shaped grooves (48) that cooperate with the arc-shaped blocks (47).
9. The connection structure of the double-ladder cable tray according to claim 8, characterized in that: Handles (49) are fixedly connected to the surfaces of both the right semicircular lock cylinder (44) and the left semicircular lock cylinder (45).
Citation Information
Patent Citations
Novel double-ladder cable bridge
CN213693012U