Cable duct bank assembly

Abstract

The utility model relates to the technical field of cable duct banks, in particular to a cable duct bank assembly. The first calandria has a first calandria groove extending in a longitudinal direction of the first calandria. The connecting pipe is partially located in the first tube bank groove and extends out of the first tube bank groove in the length direction of the first tube bank. The second calandria is provided with a second calandria groove and a butt joint groove which are arranged in the length direction of the second calandria. And the connecting pipe is respectively clamped with the first rack pipe and the butt joint groove. According to the cable duct bank assembly, the first duct bank and the second duct bank can be arranged at intervals according to the field environment, and then the first duct bank groove is in butt joint with the butt joint groove through the connecting pipe, so that the paths, extending from the first duct bank to the second duct bank, of the cables can be protected through the cable duct bank assembly. The adaptability of the cable duct bank assembly is high.

Description

Technical Field

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

[0002] Cables are typically buried underground. Cable duct assemblies can protect cables and reduce their exposure to the external environment.

[0003] Among related technologies, cable duct assemblies have poor adaptability. Utility Model Content

[0004] The main purpose of this utility model is to propose a cable duct assembly to increase the adaptability of cable duct assemblies.

[0005] To achieve the above objectives, this utility model proposes a cable conduit assembly, comprising:

[0006] The first row of pipes has a first row of pipe grooves extending along the length direction of the first row of pipes;

[0007] A connecting pipe is partially located within the first pipe groove, and the connecting pipe extends out of the first pipe groove along the length of the first pipe.

[0008] The second row of pipes has a second row of pipe grooves and a connecting groove arranged along the length direction of the second row of pipes. The second row of pipe grooves is connected to the connecting grooves. The connecting grooves are located between the second row of pipe grooves and the first row of pipes. The inner diameter of the connecting grooves is larger than the inner diameter of the second row of pipe grooves.

[0009] The connecting pipe is respectively engaged with the first row of pipes and the docking groove.

[0010] The cable duct assembly according to the embodiments of this application has at least the following beneficial effects:

[0011] In this embodiment, a connecting pipe is provided between the first and second rows of pipes, and the connecting pipe is respectively snapped into the first row of pipes and the docking groove. The first and second rows of pipes can be arranged at intervals according to the site environment, and the first row of pipes is connected to the docking groove through the connecting pipe, so that the path of the cable extending from the first row of pipes to the second row of pipes can be protected by the cable duct assembly. The cable duct assembly has high adaptability. Furthermore, the inner diameter of the docking groove is larger than the inner diameter of the second row of pipes, so that the connecting pipe is connected to the docking groove, thereby allowing the connecting pipe and the docking groove to avoid the cable, reducing the friction between the cable and the connecting pipe, and improving the cable assembly efficiency.

[0012] In some embodiments, the connecting pipe is made of a material capable of elastic deformation.

[0013] In some embodiments, there are multiple first pipe trenches and multiple second pipe trenches, and the multiple first pipe trenches and multiple second pipe trenches are arranged at intervals.

[0014] In some embodiments, the distance by which the connecting pipe extends out of the first pipe groove ranges from 15cm to 30cm.

[0015] In some embodiments, the connecting pipe extends through the first pipe trench.

[0016] In some embodiments, the first pipe row includes a first pipe body and a first fixing member connected to each other. The first fixing member has a first protrusion protruding from the central axis of the corresponding first pipe row groove. The connecting pipe includes a first pipe body and a second pipe body. The first pipe body is located in the first pipe row groove, and the second pipe body partially extends out of the first pipe row groove. The outer surface of the second pipe body has a groove that can cooperate with the first protrusion. When the connecting pipe is engaged with the first fixing member, the first protrusion is at least partially located in the groove.

[0017] In some embodiments, the number of first protrusions corresponding to a single first fastener is multiple, and the multiple first protrusions are arranged at intervals along the length direction of the first pipe, and each first protrusion can engage with the groove of the connecting pipe.

[0018] In some embodiments, the second pipe includes a second pipe body and a second fixing member connected to each other. The second fixing member protrudes towards the central axis of the corresponding second pipe groove to form a second protrusion. The outer surface of the connecting pipe is formed with a groove that can cooperate with the second protrusion. When the connecting pipe is engaged with the second fixing member, the second protrusion is at least partially located in the groove.

[0019] In some embodiments, the first pipe row and the second pipe row are precast concrete components.

[0020] In some embodiments, the second pipe row also has a guide surface located on the side of the docking groove facing the first pipe row, and gradually inclined towards the central axis of the second pipe row along the direction from the first pipe row to the second pipe row. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0022] Figure 1 This is a schematic diagram of the assembly of the first row of pipes and the connecting pipe according to an embodiment of this application;

[0023] Figure 2 This is a schematic diagram of the structure of a cable duct assembly according to an embodiment of this application;

[0024] Figure 3 This is a schematic diagram of the structure of a cable duct assembly according to an embodiment of this application;

[0025] Figure 4 for Figure 3 A magnified view of a portion at position A in the middle;

[0026] Figure 5 for Figure 3 A magnified view of a section at point B in the middle;

[0027] Figure 6 This is a schematic diagram of the assembly of the first row of pipes and the connecting pipe according to an embodiment of this application. The number of grooves in the first row of pipes is multiple.

[0028] Explanation of icon numbers:

[0029] 100, First row of pipes; 100a, First row of pipe groove; 110, First row of pipe body; 120, First fastener; 120a, First protrusion; 200, Connecting pipe; 210, First pipe body; 220, Second pipe body; 220a, Groove; 300, Second row of pipes; 300a, Second row of pipe groove; 300b, Connecting groove; 300c, Guide surface; 310, Second row of pipe body; 320, Second fastener; 320a, Second protrusion.

[0030] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0031] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0032] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit this application; the terms “comprising” and “having”, and any variations thereof, in the specification and the foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0033] In the description of the embodiments of this application, technical terms such as "first," "second," and "third" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0034] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0035] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects are in an "or" relationship.

[0036] In the description of the embodiments of this application, the technical terms "top", "bottom", "upper", "lower", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed, operated or used in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0037] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application according to the specific circumstances.

[0038] In the description of the embodiments of this application, unless otherwise expressly specified and limited, the technical term "contact" should be interpreted broadly, and can be direct contact, contact through an intermediate medium layer, contact between two contacting parties with substantially no interaction force, or contact between two contacting parties with interaction force.

[0039] In related technologies, cable duct assemblies are used to protect cables buried underground. Cable duct assemblies are typically rigid to support the chambers housing the cables, and they usually extend in a straight line. However, in complex site environments, cable duct assemblies are difficult to lay in a straight line, potentially exposing cables partially to the external environment. Therefore, the adaptability of cable duct assemblies in related technologies is poor.

[0040] In this embodiment, the connecting pipe 200 is engaged with the mating grooves 300b of the first pipe 100 and the second pipe 300, thereby connecting the first pipe groove 100a and the second pipe groove 300a. The connecting pipe 200 can be adjusted according to the site layout environment, thereby providing as complete protection as possible for the cable, and the cable duct assembly has good adaptability.

[0041] This application provides a cable duct assembly; please refer to [link / reference]. Figures 1 to 6 The cable conduit assembly includes a first conduit 100, a connecting pipe 200, and a second conduit 300. The first conduit 100 has a first conduit groove 100a extending along its length. The connecting pipe 200 is partially located within the first conduit groove 100a and extends out of the first conduit groove 100a along its length. The second conduit 300 has a second conduit groove 300a and a connecting groove 300b arranged along its length. The second conduit groove 300a communicates with the second connecting groove 300b, which is located between the second conduit groove 300a and the first conduit 100. The inner diameter of the connecting groove 300b is larger than the inner diameter of the second conduit groove 300a. The connecting pipe 200 engages with both the first conduit 100 and the connecting groove 300b.

[0042] For example, when the connecting pipe 200 is engaged with the docking groove 300b, the outer wall of the connecting pipe 200 is engaged with the inner wall of the first row of pipe grooves 100a and the inner wall of the docking groove 300b respectively.

[0043] It is understandable that the extension directions of the first row of pipes 100 and the second row of pipes 300 are both in a straight line. The extension directions of the first row of pipes 100 and the second row of pipes 300 can be basically parallel or form an angle with each other.

[0044] In this embodiment, a connecting pipe 200 is provided between the first pipe row 100 and the second pipe row 300. The connecting pipe 200 is respectively engaged with the first pipe row 100 and the docking groove 300b. The first pipe row 100 and the second pipe row 300 can be arranged at intervals according to the site environment. The connecting pipe 200 connects the first pipe row groove 100a and the docking groove 300b, so that the path of the cable extending from the first pipe row 100 to the second pipe row 300 can be protected by the cable conduit assembly. The cable conduit assembly has high adaptability. Furthermore, the inner diameter of the docking groove 300b is larger than the inner diameter of the second pipe row groove 300a, so that the connecting pipe 200 connects with the docking groove 300b. This allows the connecting pipe 200 and the docking groove 300b to avoid the cable, reducing friction between the cable and the connecting pipe 200, and improving the cable assembly efficiency.

[0045] In one embodiment, the connecting pipe 200 is made of a material capable of elastic deformation.

[0046] For example, the connecting pipe 200 is made of PE (Polyethylene).

[0047] In the embodiments of this application, the connecting pipe 200 is made of a material capable of elastic deformation. When the extension direction of the first row of pipes 100 intersects with the extension direction of the second row of pipes 300, the deformable connecting pipe 200 can better adapt to the positions of the first row of pipes 100 and the second row of pipes 300, thereby connecting the first row of pipe grooves 100a inside the first row of pipes 100 with the second row of pipe grooves 300a inside the second row of pipes 300.

[0048] In one embodiment, please refer to Figure 2 and Figure 3 There are multiple first-row pipe trenches 100a and multiple second-row pipe trenches 300a, and the multiple first-row pipe trenches 100a and multiple second-row pipe trenches 300a are arranged alternately.

[0049] For example, there are 6 first row pipe grooves 100a, and the number of second row pipe grooves 300a corresponds to the number of first row pipe grooves 100a. A connecting pipe 200 is provided between each group of first row pipe grooves 100a and second row pipe grooves 300a.

[0050] For example, in the vertical direction, there are 3 first row of pipe channels 100a, which are arranged in two mutually spaced columns.

[0051] In the embodiments of this application, there are multiple first-row pipe grooves 100a and second-row pipe grooves 300a. A single first-row pipe 100a and a single second-row pipe 300a can protect multiple cables, thereby making the arrangement of multiple cables more compact and reducing the installation space required for cable installation.

[0052] It is understood that the embodiments of this application are not limited to having multiple first-row pipe channels 100a and second-row pipe channels 300a. Exemplarily, the number of first-row pipe channels 100a and second-row pipe channels 300a is single.

[0053] In one embodiment, please refer to Figure 1 The distance by which the connecting pipe 200 extends out of the first row of pipe grooves 100a ranges from 15cm to 30cm.

[0054] For example, the distance by which the connecting pipe 200 extends out of the first row of pipe grooves 100a is 15cm, 20cm, 25cm or 30cm.

[0055] It is understandable that the distance by which the connecting pipe 200 extends out of the first row of pipe grooves 100a can be measured with a ruler under normal temperature and pressure.

[0056] For example, the distance by which the connecting pipe 200 extends out of the first row of pipe grooves 100a is called the first distance, such as... Figure 1 As shown in the medium dimension D1.

[0057] It is understandable that the portion of the connecting pipe 200 extending out of the first row of pipe grooves 100a is located between the first row of pipe grooves 100a and the second row of pipe grooves 300a.

[0058] In the embodiments of this application, the distance by which the connecting pipe 200 extends beyond the first row of pipe grooves 100a is within a suitable range, allowing the connecting pipe 200 to be positioned primarily within the mating groove 300b, thereby increasing the connection strength between the first row of pipes 100 and the second row of pipes 300. Furthermore, it reduces the portion of the connecting pipe 200 exposed to the outside, as it can be shielded by the outer walls of the first row of pipes 100 and the second row of pipes 300, thus protecting the connecting pipe 200 and the cables within it.

[0059] It is understood that the embodiments of this application do not limit the distance by which the connecting pipe 200 extends out of the first row of pipe grooves 100a.

[0060] In one embodiment, please refer to Figure 1 The connecting pipe 200 passes through the first row of pipe grooves 100a.

[0061] For example, the inner wall of the first row of pipe grooves 100a is in contact with the outer wall of the connecting pipe 200.

[0062] In the embodiment of this application, the connecting pipe 200 penetrates the first row of pipe grooves 100a. During the cable installation process, the connecting pipe 200 can isolate the cable from the inner wall of the first row of pipe grooves 100a, thereby reducing the wear caused by the cable rubbing against the inner wall of the first row of pipe grooves 100a during the installation process.

[0063] It is understood that the embodiments of this application do not limit whether the connecting pipe 200 penetrates the first row of pipe grooves 100a.

[0064] In one embodiment, please refer to Figure 3 and Figure 4 The first pipe 100 includes a first pipe body 110 and a first fixing member 120 connected to each other. The first fixing member 120 protrudes from the central axis of the corresponding first pipe groove 100a to form a first protrusion 120a. The connecting pipe 200 includes a first pipe body 210 and a second pipe body 220. The first pipe body 210 is located in the first pipe groove 100a, and the second pipe body 220 partially extends out of the first pipe groove 100a. The outer surface of the second pipe body 220 forms a groove 220a that can cooperate with the first protrusion 120a. When the connecting pipe 200 is engaged with the first fixing member 120, the first protrusion 120a is at least partially located in the groove 220a.

[0065] For example, the first pipe body 110 is fixedly connected to the first fixing member 120, and the first pipe body 110 and the first fixing member 120 together form the first pipe groove 100a. The first fixing member 120 is located on both sides of the first pipe groove 100a in the vertical direction, and the first protrusion 120a formed by the two first fixing members 120 can be well engaged with the connecting pipe 200. Along the extending direction of the first pipe 100, the size of the first protrusion 120a is substantially equal to the size of the groove 220a.

[0066] For example, the second pipe body 220 is a corrugated pipe, and the first protrusion 120a can cooperate with the groove 220a on the outer surface of the corrugated pipe, so that the connecting pipe 200 is connected to the first row of pipes 100.

[0067] For example, the second tube 220 and the first tube 210 can be arranged at intervals or abut against each other, but the second tube 220 and the first tube 210 are not connected to each other.

[0068] In the embodiment of this application, the connecting pipe 200 can be snapped into the first row of pipes 100 via the first fixing member 120, resulting in a simple connection method. Furthermore, the first pipe body 210, located within the first row of pipe grooves 100a, helps reduce cable wear. The second pipe body 220's length and extension direction can be designed according to the positions of the first row of pipes 100 and the second row of pipes 300. The second pipe body 220 can be arranged at intervals from the first pipe body 210, minimizing its impact on the first pipe body 210 during adjustments to its extension direction.

[0069] It is understood that the embodiments of this application do not limit the specific structure of the connecting pipe 200.

[0070] In one embodiment, please refer to Figure 3 The number of first protrusions 120a corresponding to a single first fixing member 120 is multiple. The multiple first protrusions 120a are arranged at intervals along the length direction of the first row of pipes 100, and each first protrusion 120a can be engaged with the groove 220a of the connecting pipe 200.

[0071] For example, the number of first protrusions 120a corresponding to a single first fastener 120 is two, the two first protrusions 120a are arranged at intervals, and a recess is formed between the two first protrusions 120a. The recess can cooperate with the protruding part on the outer surface of the second tube 220, so that the second tube 220 is engaged with the first fastener 120.

[0072] In the embodiments of this application, the number of first protrusions 120a corresponding to a single first fixing member 120 is multiple. Multiple first protrusions 120a can increase the connection strength between the second tube body 220 and the first fixing member 120, thereby reducing the possibility of the second tube body 220 and the first fixing member 120 detaching from each other.

[0073] It is understood that the embodiments of this application do not limit the number of first protrusions 120a corresponding to a single first fastener 120. Exemplarily, the number of first protrusions 120a corresponding to a single first fastener 120 is one.

[0074] In one embodiment, please refer to Figure 3 and Figure 5 The second pipe 300 includes a second pipe body 310 and a second fixing member 320 connected to each other. The second fixing member 320 protrudes towards the central axis of the corresponding second pipe groove 300a to form a second protrusion 320a. The outer surface of the connecting pipe 200 forms a groove 220a that can cooperate with the second protrusion 320a. When the connecting pipe 200 is engaged with the second fixing member 320, the second protrusion 320a is at least partially located in the groove 220a.

[0075] For example, the second pipe body 310 is fixedly connected to the second fixing member 320, and the second pipe body 310 and the second fixing member 320 together form the second pipe groove 300a. The second fixing member 320 is located on both sides of the second pipe groove 300a in the vertical direction, and the second protrusion 320a formed by the two second fixing members 320 can be well engaged with the connecting pipe 200. Along the extension direction of the second pipe 300, the size of the second protrusion 320a is substantially equal to the size of the groove 220a.

[0076] For example, a groove 220a is formed on the outer surface of the second tube body 220 of the connecting tube 200. When the connecting tube 200 and the second fixing member 320 are engaged with each other, the groove 220a of the second tube body 220 cooperates with the second protrusion 320a.

[0077] In the embodiment of this application, the second pipe row 300 includes a second pipe row body 310 and a second fixing member 320. The second fixing member 320 has a second protrusion 320a to cooperate with the groove 220a formed in the connecting pipe 200. The connection method between the connecting pipe 200 and the second pipe row 300 is simple and has high assembly efficiency.

[0078] It is understood that the embodiments of this application do not limit the assembly method between the connecting pipe 200 and the second row of pipes 300. Exemplarily, the connecting pipe 200 can be interference-fitted with the second row of pipes 300.

[0079] In one embodiment, the first row of pipes 100 and the second row of pipes 300 are precast concrete components.

[0080] Precast concrete components are components that are prefabricated in a factory and then transported to the construction site for assembly.

[0081] In the embodiments of this application, the first row of pipes 100 and the second row of pipes 300 are precast concrete components, which reduces the space occupied on the construction site. Furthermore, the first row of pipes 100 and the second row of pipes 300 can be prefabricated, thereby increasing the efficiency of cable installation. Moreover, the curing environment for precast concrete components is better than that for on-site fabrication and curing, resulting in the first row of pipes 100 and the second row of pipes 300 having better strength, thus providing better protection for the cables.

[0082] It is understood that the embodiments of this application do not limit whether the first row of pipes 100 and the second row of pipes 300 are precast concrete components.

[0083] In one embodiment, please refer to Figure 5The second row of pipes 300 also has a guide surface 300c. The guide surface 300c is located on the side of the docking groove 300b facing the first row of pipes 100. Along the direction from the first row of pipes 100 to the second row of pipes 300, the guide surface 300c gradually tilts toward the central axis of the second row of pipes 300.

[0084] For example, the guide surface 300c is an annular surface, and the guide surface 300c is formed around the central axis of the second row of pipes 300.

[0085] In the embodiment of this application, the second row of pipes 300 has a guide surface 300c. The guide surface 300c gradually tilts towards the central axis of the second row of pipes 300. The guide surface 300c can guide the first row of pipes 100, thereby increasing the contact area between the first row of pipes 100 and the second row of pipes 300, and thus reducing the pressure between the first row of pipes 100 and the second row of pipes 300. During the connection process, when an angle is formed between the central axis of the first row of pipes 100 and the central axis of the second row of pipes 300, the first row of pipes 100 can slide along the guide surface 300c, thereby increasing the assembly efficiency of the first row of pipes 100 and the second row of pipes 300.

[0086] It is understood that the embodiments of this application do not limit whether the second row of pipes 300 has a guide surface 300c.

[0087] The above embodiments are merely illustrative of the technical solutions of this application and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and all should be covered within the scope of the specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of protection.

Claims

1. A cable conduit assembly, characterized by include: The first row of pipes has a first row of pipe grooves extending along the length direction of the first row of pipes; A connecting pipe is partially located within the first pipe groove, and the connecting pipe extends out of the first pipe groove along the length of the first pipe. The second row of pipes has a second row of pipe grooves and a connecting groove arranged along the length direction of the second row of pipes. The second row of pipe grooves is connected to the connecting grooves. The connecting grooves are located between the second row of pipe grooves and the first row of pipes. The inner diameter of the connecting grooves is larger than the inner diameter of the second row of pipe grooves. The connecting pipe is respectively engaged with the first row of pipes and the docking groove.

2. The electrical cable conduit assembly of claim 1, wherein, The connecting pipe is made of a material that can undergo elastic deformation.

3. The electrical cable conduit assembly of claim 1, wherein, There are multiple first pipe trenches and multiple second pipe trenches, and the multiple first pipe trenches and multiple second pipe trenches are arranged at intervals.

4. The electrical cable conduit assembly of any one of claims 1 to 3, wherein, The distance by which the connecting pipe extends out of the first row of pipe grooves ranges from 15cm to 30cm.

5. The electrical cable conduit assembly of any one of claims 1 to 3, wherein, The connecting pipe passes through the first row of pipes.

6. The electrical cable conduit assembly of any one of claims 1 to 3, wherein, The first pipe row includes a first pipe body and a first fixing member connected to each other. The first fixing member protrudes towards the central axis of the corresponding first pipe row groove to form a first protrusion. The connecting pipe includes a first pipe body and a second pipe body. The first pipe body is located in the first pipe row groove, and the second pipe body partially extends out of the first pipe row groove. The outer surface of the second pipe body forms a groove that can cooperate with the first protrusion. When the connecting pipe is engaged with the first fixing member, the first protrusion is at least partially located in the groove.

7. The electrical cable conduit assembly of claim 6, wherein, The number of first protrusions corresponding to a single first fixing member is multiple, and the multiple first protrusions are arranged at intervals along the length direction of the first pipe, and each first protrusion can engage with the groove of the connecting pipe.

8. The electrical cable conduit assembly of any one of claims 1 to 3, wherein, The second row of pipes includes a second row of pipe bodies and a second fixing member that are connected to each other. The second fixing member protrudes towards the central axis of the corresponding second row of pipe groove to form a second protrusion. The outer surface of the connecting pipe is formed with a groove that can cooperate with the second protrusion. When the connecting pipe is engaged with the second fixing member, the second protrusion is at least partially located in the groove.

9. The electrical cable conduit assembly of any one of claims 1 to 3, wherein, The first and second rows of pipes are precast concrete components.

10. The electrical cable conduit assembly of any one of claims 1 to 3, wherein, The second row of pipes also has a guide surface, which is located on the side of the docking groove facing the first row of pipes. Along the direction from the first row of pipes to the second row of pipes, the guide surface gradually tilts toward the central axis of the second row of pipes.

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