Combined ladder type cable bridge

Abstract

The utility model relates to the field of cable bridges, and discloses a combined ladder type cable bridge which comprises two symmetrical supporting side plates, a plurality of step connecting pieces are arranged between the two supporting side plates, a fixing sleeve is fixedly connected to the middle of the bottom end of each step connecting piece, and a fixing mechanism is further arranged on the single step connecting piece close to the edges of the two sides of the supporting side plates. An adjusting rod sleeves one side of the outer surface of the fixed sleeve, a first chuck is fixedly mounted in the middle of the bottom end of the adjusting rod, a square groove is formed in the middle of the bottom end of the fixed sleeve, a movable square rod is movably mounted in the square groove, and a spring sleeves one side of the outer surface of the movable square rod; through sliding of the adjusting rod on the fixing sleeve and cooperation of the connecting structure, the distance between the step connecting pieces can be adjusted according to needs, and the device is suitable for different cables, for example, the distance between thick and heavy cables is increased, and the distance between small cables is reduced; every two adjacent adjusting rods are fixedly connected through the corresponding fixing mechanism, the step connecting piece is stably fixed, and disassembly and reassembly are convenient.

Description

Technical Field

[0001] This application relates to the field of cable trays, and more particularly to a combined ladder-type cable tray. Background Technology

[0002] Ladder-type cable trays, as an important carrier for cable laying in the power and communication fields, typically consist of side plates on both sides and several ladder-like connecting members fixed between the side plates, resembling a ladder. This type of tray, with its unique open structure, provides excellent heat dissipation space for the cables and facilitates installation, maintenance, and repair by construction personnel.

[0003] However, existing ladder-type cable trays mostly use fixed-spaced ladder connectors, a design that is extremely passive when facing diverse cable laying needs. In actual engineering, the weight of cables varies greatly due to differences in specifications, materials, and uses. Some equipment cables are usually thicker and heavier, requiring larger-spaced ladder connectors for support to distribute the cable weight. If larger-spaced ladder connectors are still used, it will not only waste cable tray space but may also cause the cables to sway within the cable tray, affecting signal transmission stability. In addition, when it is necessary to add or remove the number of cables in the cable tray, the fixed number and spacing of ladder connectors cannot be flexibly adjusted. Construction personnel cannot reasonably allocate cable tray space according to the actual situation, resulting in messy cable laying, increasing the difficulty and cost of later maintenance, and limiting the applicability and functionality of ladder-type cable trays in different scenarios.

[0004] Regarding the aforementioned technologies, the inventors believe that existing ladder-type cable trays have the drawback of being inconvenient to adjust the ladder-connecting components. Therefore, a combined ladder-type cable tray is proposed to solve the above problems. Utility Model Content

[0005] To address the problem of inconvenient adjustment of ladder-type cable trays, this application provides a combined ladder-type cable tray.

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

[0007] A combined ladder-type cable tray includes two symmetrical support side plates, with several ladder-type connecting pieces arranged between the two support side plates. A fixing sleeve is fixedly connected to the middle of the bottom end of each ladder-type connecting piece. A fixing mechanism is also provided on a single ladder-type connecting piece near the two edges of the support side plates. An adjusting rod is fitted on one side of the outer surface of the fixing sleeve. A chuck is fixedly installed at the middle of the bottom end of the adjusting rod. A square groove is opened in the middle of the bottom end of the fixing sleeve. A movable square rod is movably installed inside the square groove. A spring is fitted on one side of the outer surface of the movable square rod. A second chuck is installed below the adjusting rod at the bottom end of the spring. A connecting structure is also provided between two adjacent ladder-type connecting pieces for connecting the two adjusting rods to each other.

[0008] Preferably, the connecting structure includes a spline hole, which is opened through the two sides of the upper surface of the adjusting rod. A first connecting plate is installed near the bottom between two adjacent adjusting rods. A spline insert is fixed to the two sides of the top of the first connecting plate through the spline hole. A fastening screw is fixed to the middle of the top of the first connecting plate. A second connecting plate is installed above the first connecting plate on the upper surface of the adjusting rod. A fastening nut is threaded onto the upper surface of the second connecting plate on the outer surface of the fastening screw.

[0009] Preferably, the fixing mechanism includes a limiting screw, which is symmetrically welded to both sides of the inner wall of the support side plate. Connecting parts are symmetrically arranged on the upper surface of the ladder connecting piece, and the outer surface of the limiting screw abuts against the connecting parts and is threaded with a limiting nut.

[0010] Preferably, the upper surface edge of the connector extends into the interior of the ladder connector and has a threaded groove, and the top edge of the connector extends into the interior of the ladder connector and is threaded with a fastening bolt.

[0011] Preferably, the second connecting plate has through holes on both sides of its upper surface. The spline hole and the through hole have the same structure and are aligned vertically. The spline insert is inserted into the spline hole and the through hole. The top center of the second connecting plate has a through hole. One side of the outer surface of the fastening screw is located in the fastening hole. The fastening screw and the fastening hole are fitted together.

[0012] In summary, this application includes the following beneficial technical effects:

[0013] The spacing of the ladder connectors can be adjusted as needed by sliding the adjusting rod on the fixed sleeve and cooperating with the connecting structure to accommodate different cables, such as increasing the spacing for thick and heavy cables and decreasing the spacing for small cables. The limiting screws, nuts, connectors, and fastening bolts in the fixing mechanism securely fix the ladder connectors, facilitating disassembly and reassembly. The spline holes, inserts, fastening screws, and nuts in the connecting structure ensure quick and secure connection, preventing loosening and displacement, and improving the reliability and lifespan of the cable tray. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the application;

[0015] Figure 2 This is a schematic diagram of the structure of the first connecting plate in the embodiment of the application;

[0016] Figure 3 This is a structural schematic diagram of the ladder-type connecting member in the embodiment of the application;

[0017] Figure 4 This is a schematic diagram of the structure of chuck number two in the embodiment of the application;

[0018] Explanation of reference numerals in the attached drawings: 1. Support side plate; 2. Ladder connecting piece; 3. Fixing sleeve; 4. Adjusting rod; 5. First chuck; 6. Square groove; 7. Movable square rod; 8. Spring; 9. Second chuck; 10. Spline hole; 11. First connecting plate; 12. Spline insert rod; 13. Fastening screw; 14. Second connecting plate; 15. Fastening nut; 16. Limiting screw; 17. Connecting piece; 18. Limiting nut; 19. Fastening bolt. Detailed Implementation

[0019] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0020] This application discloses a combined ladder-type cable tray. (Refer to...) Figure 1-4 A combined ladder-type cable tray includes two symmetrical support side plates 1, with several ladder connecting pieces 2 arranged between the two support side plates 1. A fixing sleeve 3 is fixedly connected to the middle of the bottom end of each ladder connecting piece 2. A fixing mechanism is also provided on a single ladder connecting piece 2 near the two edges of the support side plates 1. An adjusting rod 4 is fitted on one side of the outer surface of the fixing sleeve 3. A first chuck 5 is fixedly installed at the middle of the bottom end of the adjusting rod 4. A square groove 6 is opened at the middle of the bottom end of the fixing sleeve 3. A movable square rod 7 is movably installed inside the square groove 6. A spring 8 is fitted on one side of the outer surface of the movable square rod 7. A second chuck 9 is installed below the adjusting rod 4 at the bottom end of the spring 8. A connecting structure is also provided between two adjacent ladder connecting pieces 2 for connecting the two adjusting rods 4 to each other.

[0021] The spacing of the step connector 2 is adjusted by the sliding engagement between the adjusting rod 4 and the fixed sleeve 3, as well as the function of the connecting structure. When the step connector 2 is pulled, the adjusting rod 4 rotates on the outer surface of the fixed sleeve 3, the movable square rod 7 slides in the square groove 6, the spring 8 buffers the external force and assists in resetting, and the second chuck 9 and the first chuck 5 are pulled to engage with each other, so that the adjusted adjusting rod 4 remains fixed and its rotation is restricted.

[0022] Reference Figure 3 and Figure 4The connecting structure includes a spline hole 10, which is opened through the two sides of the upper surface of the adjusting rod 4. A first connecting plate 11 is installed near the bottom between two adjacent adjusting rods 4. A spline insert 12 is fixedly connected to the two sides of the top of the first connecting plate 11 through the spline hole 10. A fastening screw 13 is fixedly connected to the middle of the top of the first connecting plate 11. A second connecting plate 14 is installed above the first connecting plate 11 on the upper surface of the adjusting rod 4. A fastening nut 15 is threadedly connected to the outer surface of the fastening screw 13 on the upper surface of the second connecting plate 14. Through holes are opened through the two sides of the upper surface of the second connecting plate 14. The spline hole 10 and the through hole have the same structure and are aligned vertically. The spline insert 12 is inserted into the spline hole 10 and the through hole. A fixing hole is opened through the middle of the top of the second connecting plate 14. One side of the outer surface of the fastening screw 13 is located in the fixing hole. The fastening screw 13 and the fixing hole are interlocked.

[0023] By engaging the splined insert 12 with the splined hole 10, the fastening screw 13 and fastening nut 15 fix the position of the second connecting plate 14, ensuring that the adjusting rod 4 and the step connector 2 are fixed at the adjusted spacing position.

[0024] Reference Figure 1 and Figure 3 The fixing mechanism includes a limiting screw 16, which is symmetrically welded to the inner sides of the support side plate 1. Connecting parts 17 are symmetrically arranged on the upper surface of the step connector 2. The outer surface of the limiting screw 16 abuts against the connecting parts 17 and is threadedly connected to a limiting nut 18. The upper surface of the connecting parts 17 extends into the interior of the step connector 2 and is provided with a threaded groove. The top edge of the connecting parts 17 extends into the interior of the step connector 2 and is threadedly connected to a fastening bolt 19.

[0025] By using the limiting screw 16, the limiting nut 18 and the fastening bolt 19 to stabilize the position of the ladder connecting piece 2 on the supporting side plate 1, the overall stability of the cable tray is ensured.

[0026] The implementation principle of a combined ladder-type cable tray according to an embodiment of this application is as follows: the spacing of the ladder connecting members 2 is adjusted by the sliding engagement of the adjusting rod 4 and the fixed sleeve 3, as well as the function of the connecting structure. When the ladder connecting member 2 is pulled, the adjusting rod 4 rotates on the outer surface of the fixed sleeve 3, the movable square rod 7 slides in the square groove 6, the spring 8 can buffer the external force and assist in the reset, and the second chuck 9 and the first chuck 5 are pulled to engage with each other, so that the adjusted adjusting rod 4 is kept fixed and its rotation is restricted. In the connecting structure, the spline insert 12 engages with the spline hole 10, and the fastening screw 13 and the fastening nut 15 fix the position of the second connecting plate 14, ensuring that the adjusting rod 4 and the ladder connecting member 2 are fixed at the adjusted spacing position. The fixing mechanism uses the limiting screw 16, the limiting nut 18 and the fastening bolt 19 to stabilize the position of the ladder connecting member 2 on the supporting side plate 1, ensuring the overall stability of the cable tray, so that the cable tray can flexibly adjust the spacing of the ladder connecting member 2 according to the cable specifications to meet different cable laying requirements.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A combined ladder type cable bridge comprising two support side plates (1) symmetrical to each other, characterized in that: Between two support side plates (1), a plurality of stepped connecting pieces (2) are arranged, the bottom middle of the stepped connecting piece (2) is fixedly connected with a fixing sleeve (3), a fixing mechanism is further arranged on the single stepped connecting piece (2) near the two side edges of the support side plate (1), the outer surface of the fixing sleeve (3) is sleeved with an adjusting rod (4), the bottom middle of the adjusting rod (4) is fixedly installed with a first chuck (5), the bottom middle of the fixing sleeve (3) is provided with a square groove (6), the square groove (6) is movably installed with a movable square rod (7), the outer surface of the movable square rod (7) is sleeved with a spring (8), the bottom end of the spring (8) extends to the below of the adjusting rod (4) and is installed with a second chuck (9), a connecting structure is further arranged between two adjacent stepped connecting pieces (2) for connecting two adjusting rods (4) with each other.

2. The combined ladder-type cable bridge according to claim 1, characterized in that: The connecting structure comprises a spline hole (10) which is provided on the upper surface of the adjusting rod (4) and extends through the two side edges, a first connecting plate (11) is arranged below the two adjacent adjusting rods (4), the two side edges of the top of the first connecting plate (11) are fixedly connected with a spline plug rod (12) through the spline hole (10), a fastening screw (13) is fixedly connected to the middle of the top of the first connecting plate (11), a second connecting plate (14) is arranged above the first connecting plate (11) and is installed on the upper surface of the adjusting rod (4), a fastening nut (15) is threadedly connected to the outer surface of the fastening screw (13) and the upper surface of the second connecting plate (14).

3. The combined ladder-type cable bridge according to claim 1, characterized in that: The fixing mechanism comprises a limiting screw (16) which is symmetrically welded on the two side edges of the inner wall of the support side plate (1), a connecting piece (17) is symmetrically arranged on the upper surface of the stepped connecting piece (2), and a limiting nut (18) is threadedly connected to the outer surface of the limiting screw (16) and abuts against the connecting piece (17).

4. The combined ladder-type cable bridge according to claim 3, characterized in that: A threaded groove is formed in the upper surface of the connecting piece (17) and extends to the inside of the stepped connecting piece (2), and a fastening bolt (19) is threadedly connected to the top edge of the connecting piece (17) and extends to the inside of the stepped connecting piece (2).

5. The combined ladder-type cable bridge according to claim 2, characterized in that: The two side edges of the upper surface of the second connecting plate (14) are provided with through holes, the spline hole (10) and the through hole are the same structure and are vertically aligned, the spline plug rod (12) is inserted into the spline hole (10) and the through hole, a fixing hole is formed in the middle of the top of the second connecting plate (14), the outer surface of the fastening screw (13) is located in the fixing hole, and the fastening screw (13) and the fixing hole are embedded with each other.

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