Modular power cable conduit

Abstract

The utility model relates to the technical field of electric power pipes, and discloses a modularized power cable conduit which comprises a first pipeline, a second pipeline is detachably connected to the exterior of the first pipeline, extension pipes are fixedly connected to the exterior of the first pipeline and the exteriors of the left side and the right side of the second pipeline, and fixing rings are detachably connected to the exteriors of the extension pipes. An adjusting column is slidably connected into the fixing ring, the adjusting column is sleeved with a spring, the outer portion of the adjusting column is in threaded connection with a first nut, an auxiliary fixing assembly is arranged in the fixing ring, the auxiliary fixing assembly can fix the fixing ring for the second time, and the auxiliary fixing assembly comprises a fixing bolt. The exterior of the fixing bolt is slidably connected to the interior of the fixing ring. The pipeline connecting structure can adapt to pipelines of different sizes, meanwhile, the sealing performance of the connecting position can be improved, internal overheating can be avoided, and the service life of the first pipeline and the second pipeline is prolonged.

Description

Technical Field

[0001] This utility model relates to the field of power pipe technology, and in particular to modular power cable conduits. Background Technology

[0002] Cables are typically laid underground using conduits, which guide and protect the cables inside. Commonly used conduits in China include steel pipes, plastic-coated steel pipes, cement pipes, plastic pipes, fiberglass pipes, and steel-plastic composite pipes. Modular power cable conduits usually consist of multiple standard prefabricated modules, each containing a certain number of cable conduits. These modules can be combined and connected according to actual needs to form a complete cable conduit system.

[0003] Modular cable conduits consist of a main body, cable conduits, and sockets. The main body is a modular frame structure with equally spaced cable conduits inside to accommodate cables. One end has a female socket, and the other end has a female socket. Connections between modules are achieved by inserting the female socket into the female socket.

[0004] In existing technologies, some cable conduits are fixed using interfaces between connectors. However, this method cannot accommodate different pipe sizes during installation, requiring the use of connectors of the appropriate size, which is time-consuming and labor-intensive. Therefore, modular power cable conduits are proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a modular power cable conduit, which aims to improve the problem in the prior art that it cannot adapt to different pipe sizes during installation, requiring the search for corresponding sized connectors for installation, which is time-consuming and labor-intensive.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a modular power cable conduit, including a first pipe, a second pipe detachably connected to the outside of the first pipe, extension pipes fixedly connected to the outside of the first pipe and the left and right sides of the second pipe, a fixing ring detachably connected to the outside of the extension pipe, an adjusting column slidably connected inside the fixing ring, a spring sleeved on the outside of the adjusting column, a nut threadedly connected to the outside of the adjusting column, and an auxiliary fixing component provided inside the fixing ring, the auxiliary fixing component being able to fix the fixing ring a second time;

[0007] As a further description of the above technical solution:

[0008] The auxiliary fixing component includes a fixing bolt, the outside of which is slidably connected to the inside of the fixing ring, and the outside of which is threaded with a nut. A sealing ring is detachably connected to the inside of the fixing ring.

[0009] As a further description of the above technical solution:

[0010] The fixing ring has a positioning hole inside and an installation hole inside;

[0011] As a further description of the above technical solution:

[0012] The adjusting column is externally slidably connected to the inner wall of the positioning hole, and the fixing bolt is externally slidably connected to the inner wall of the mounting hole.

[0013] As a further description of the above technical solution:

[0014] The inside of the fixing ring is in contact with the outside of the extension tube;

[0015] As a further description of the above technical solution:

[0016] One end of the spring is fixedly connected to the outside of the adjusting column, and the other end of the spring is fixedly connected to the outside of the fixing ring.

[0017] As a further description of the above technical solution:

[0018] An adhesive layer is fixedly connected inside the first pipe, and a modified plastic pipe layer is fixedly connected outside the adhesive layer.

[0019] As a further description of the above technical solution:

[0020] The outer side of nut one is in contact with the outer side of the retaining ring, and the outer side of nut two is in contact with the outer side of the retaining ring.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, by aligning the two ends of pipe one and pipe two, the extension pipe is placed outside the connection, and then the fixing ring is placed outside the extension pipe. The adjusting column is pressed down, and as the adjusting column moves, the spring is compressed by force, adjusting the size and position of the fixing ring at the connection. After adjustment, it is locked with nut one, and then fixed a second time with fixing bolt to prevent shaking. It can adapt to pipes of different sizes and increase the sealing of the connection.

[0023] 2. In this utility model, by adding an adhesive layer, the modified plastic pipe layer can be adhered to the inside of pipe one. The modified plastic pipe layer has good thermal conductivity and insulation, which can prevent internal overheating and extend the service life of pipe one and pipe two. Attached Figure Description

[0024] Figure 1This is a three-dimensional schematic diagram of the modular power cable conduit proposed in this utility model;

[0025] Figure 2 This is a schematic diagram of the extension tube of the modular power cable conduit proposed in this utility model.

[0026] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0027] Figure 4 This is a schematic diagram of the structure of the modular power cable conduit proposed in this utility model.

[0028] Legend:

[0029] 1. Pipe 1; 2. Pipe 2; 3. Fixing ring; 4. Sealing ring; 5. Adjusting column; 6. Nut 1; 7. Spring; 8. Fixing bolt; 9. Positioning hole; 10. Mounting hole; 11. Extension pipe; 12. Adhesive layer; 13. Modified plastic pipe layer. Detailed Implementation

[0030] 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.

[0031] Reference Figure 1 to Figure 3 This utility model provides an embodiment of a modular power cable conduit, comprising a pipe 1, which is a key basic component of the modular power cable conduit and has an overall elongated tubular structure. A pipe 2 is detachably connected to the outside of pipe 1. Pipe 2 is also an elongated tubular structure, made of a similar material to pipe 1 to ensure consistency and compatibility after connection. Extension pipes 11 are fixedly connected to the outside of pipe 1 and the left and right sides of pipe 2. Fixing rings 3 are detachably connected to the outside of extension pipes 11. Fixing rings 3 are circular in shape, possessing excellent compressive and deformation resistance. The cross-section of the ring is a thick rectangle to ensure sufficient structural strength.

[0032] An adjusting column 5 is slidably connected inside the fixed ring 3. The main body of the adjusting column 5 is a cylindrical metal rod with good rigidity and wear resistance. A spring 7 is sleeved on the outside of the adjusting column 5. One end of the spring 7 is fixedly connected to the outside of the adjusting column 5, and the other end of the spring 7 is fixedly connected to the outside of the fixed ring 3. Pressing the adjusting column 5 compresses the spring 7, which accumulates elastic potential energy. After releasing the external force, the spring 7 rebounds and pushes the adjusting column 5 back to its original position or finely adjusts the position of the fixed ring 3, compensating for pipeline connection tolerances, ensuring a tight and stable connection, and providing flexible adjustment margin for modular installation.

[0033] The external threaded connection of the adjusting column 5 is a nut 6, which is precisely fitted with the threaded section of the adjusting column 5. After the adjusting column 5 is adjusted to the correct position, the nut 6 is screwed along the thread of the adjusting column 5 until the bottom surface of the nut 6 is tightly attached to the outer surface of the fixing ring 3. The adjusting column 5 is firmly locked by the friction and pressure of the threads, preventing the adjusting column 5 from shifting due to vibration, external pulling, or other factors. This stabilizes the fixing ring 3 and the entire pipeline connection structure. The fixing ring 3 is equipped with an auxiliary fixing component inside, which can fix the fixing ring 3 a second time.

[0034] The auxiliary fixing components include a fixing bolt 8, which is externally slidably connected to the inside of the fixing ring 3. The fixing bolt 8 has a threaded connection to a nut, with the thread specification of the nut being compatible to ensure smooth tightening and reliable fastening. After the adjusting column 5 and nut 6 have initially fixed the position of the fixing ring 3, the fixing bolt 8 is passed through the mounting hole 10, and nut 2 is screwed on and tightened. At this time, the fixing bolt 8 and nut 2 work together to reinforce the fixing ring 3 from another dimension, distributing the force and further strengthening the connection stability between pipe 1 and pipe 2, effectively resisting external impacts under complex working conditions, and ensuring the long-term safe operation of the cable conduit.

[0035] The fixing ring 3 has a detachable sealing ring 4 inside. The sealing ring 4 is made of high-performance rubber to prevent excessive deformation and tearing under the pressure of the fixing ring 3, ensuring a long-term stable sealing effect. The fixing ring 3 has a positioning hole 9 inside. During installation, the adjusting column 5 slides up and down in the positioning hole 9. The spring force of the spring 7 is used to finely adjust the height of the fixing ring 3, so as to achieve precise control of the pipe connection gap and the degree of sealing. At the same time, the positioning hole 9 restricts the horizontal displacement of the adjusting column 5 to prevent the adjusting column 5 from tilting due to external interference, ensuring the stable operation of the entire adjustment and fixing mechanism.

[0036] The fixing ring 3 has an internal mounting hole 10, which provides a passage for the fixing bolt 8 and is a key structure in the secondary fixing process. During construction, the fixing bolt 8 passes through the mounting hole 10 and the corresponding pipe component in sequence. The outer side of nut 1 6 contacts the outer side of the fixing ring 3, and the outer side of nut 2 contacts the outer side of the fixing ring 3. The fixing bolt 8 and nut 2 are tightened, firmly locking the fixing ring 3 at the connection between pipe 1 and pipe 2. Together with the adjusting column 5 and nut 1 6, it forms a multi-dimensional fastening system, comprehensively enhancing the reliability of the conduit connection.

[0037] The adjusting column 5 is externally slidably connected to the inner wall of the positioning hole 9, and the fixing bolt 8 is externally slidably connected to the inner wall of the mounting hole 10. The inside of the fixing ring 3 is in contact with the outside of the extension tube 11, which is also the mounting support for the fixing ring 3. The outside of the extension tube 11 is precisely reserved with mounting points for the fixing ring 3, which fits tightly with the fixing ring 3 to jointly fix the pipe connection parts and ensure the integrity and stability of the conduit.

[0038] Reference Figure 4 The pipe 1 has an internally fixed adhesive layer 12, and an externally fixed modified plastic pipe layer 13. The adhesive layer 12 is uniformly coated on the inner wall of the pipe 1 and is cured through a specific process during construction to form a dense and tough bonding interface. At the molecular level, the active groups of the adhesive layer 12 intertwine and permeate with the molecules of the inner wall material of the pipe 1 and the molecules of the modified plastic pipe layer 13, forming a dual effect of chemical bonding and physical adsorption. This strongly locks the modified plastic pipe layer 13, preventing its displacement and detachment, maintaining the integrity of the internal structure of the pipe, and ensuring the safe passage of the cable. As the inner protective structure of the pipe 1, the modified plastic pipe layer 13 is in direct contact with the cable, providing insulation and buffer protection for the cable.

[0039] Working principle: First, place pipe 1 and pipe 2 in the appropriate positions and align their ends. Then, place the sealing ring 4 outside the connection between pipe 1 and pipe 2, and then place the fixing ring 3 outside the sealing ring 4. Press down on the adjusting column 5 to insert it into the positioning hole 9. At this time, the spring 7 is compressed. The elasticity of the spring 7 can be used to adjust the position of the fixing ring 3 at the connection. After adjusting to the appropriate position, use the nut 6 to lock the adjusting column 5. Then, use the fixing bolt 8 for secondary fixation.

[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present 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 the present utility model should be included within the protection scope of the present utility model.

Claims

1. A modular power cable conduit, comprising conduit one (1), characterized in that: Pipe 1 (1) is detachably connected to pipe 2 (2). Extension pipes (11) are fixedly connected to the outside of pipe 1 (1) and the left and right sides of pipe 2 (2). A fixing ring (3) is detachably connected to the outside of the extension pipe (11). An adjusting column (5) is slidably connected inside the fixing ring (3). A spring (7) is sleeved on the outside of the adjusting column (5). A nut (6) is threaded on the outside of the adjusting column (5). An auxiliary fixing component is provided inside the fixing ring (3). The auxiliary fixing component can fix the fixing ring (3) a second time.

2. The modular power cable conduit according to claim 1, characterized in that: The auxiliary fixing component includes a fixing bolt (8), the outside of which is slidably connected to the inside of the fixing ring (3), the outside of which is threaded with a nut, and the inside of which is detachably connected with a sealing ring (4).

3. The modular power cable conduit according to claim 2, characterized in that: The fixing ring (3) has a positioning hole (9) inside and an installation hole (10) inside.

4. The modular power cable conduit according to claim 3, characterized in that: The adjusting column (5) is externally slidably connected to the inner wall of the positioning hole (9), and the fixing bolt (8) is externally slidably connected to the inner wall of the mounting hole (10).

5. The modular power cable conduit according to claim 2, characterized in that: The inside of the fixing ring (3) is in contact with the outside of the extension tube (11).

6. The modular power cable conduit according to claim 1, characterized in that: One end of the spring (7) is fixedly connected to the outside of the adjusting column (5), and the other end of the spring (7) is fixedly connected to the outside of the fixing ring (3).

7. The modular power cable conduit according to claim 1, characterized in that: The inner part of the pipe (1) is fixedly connected with an adhesive layer (12), and the outer part of the adhesive layer (12) is fixedly connected with a modified plastic pipe layer (13).

8. The modular power cable conduit according to claim 2, characterized in that: The outer side of nut one (6) is in contact with the outer side of the fixing ring (3), and the outer side of nut two is in contact with the outer side of the fixing ring (3).

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