Building ceiling cable routing system and construction method thereof
By pre-embedding sleeves and cable tray components in the building beams, the problems of large space occupation and complex construction of cable routing systems are solved, achieving the effects of cost saving, improved efficiency and ensuring building stability.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHANGHAI CONSTR NO 5 GRP CO LTD
- Filing Date
- 2025-12-05
- Publication Date
- 2026-04-10
AI Technical Summary
Traditional cable routing systems occupy a lot of space in ceiling construction, are complicated to install, and affect the stability of the building. In particular, drilling is required when passing through walls or beams, resulting in high costs and low efficiency.
The construction method adopts pre-embedded sleeves and cable tray components. The sleeves are pre-embedded in the building beams, and the cable tray components are fixed to the ceiling and connected to the sleeves to form a cable routing system. This avoids drilling holes in the beams later and uses cable tray components to replace hangers for installation, reducing the impact on the main building structure.
It saves space, reduces costs, simplifies construction procedures, improves construction efficiency, ensures the stability of the building structure, is suitable for confined spaces, and extends the service life of cables.
Smart Images

Figure CN121840474A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application belongs to the technical field of cable routing system, and particularly relates to a building suspended ceiling cable routing system and a construction method thereof. BACKGROUND
[0002] The cable routing system refers to a complete set of integrated infrastructure for providing support, management and protection for all cables and optical cables in a building.
[0003] In traditional mechanical and electrical construction, in view of the optimization of the suspended ceiling, the construction of the routing system usually needs to first use expansion bolts to punch a hanger on the floor, and then install a bridge by using the hanger to provide bearing capacity. Not only does it occupy a certain vertical space under the ceiling, but also the construction is relatively complicated, and the construction cost is relatively high due to the erection of multiple hangers. If the bridge is installed in a ceiling-mounted manner, a large amount of space under the beam needs to be occupied when crossing the beam. In addition, when the existing cable routing system needs to pass through the wall or the beam, a hole needs to be punched in the wall or the beam, which may affect the stability of the building main body. SUMMARY
[0004] In order to save the space occupied by the cable routing system in a small space, reduce the construction cost, simplify the construction process, and not affect the stability of the building main body, the present application provides a building suspended ceiling cable routing system and a construction method thereof.
[0005] The technical scheme of the present application is as follows:
[0006] A building suspended ceiling cable routing system comprises:
[0007] A sleeve is used for pre-burying in a building beam body to allow cables to pass through the building beam body.
[0008] A bridge assembly is used for being arranged on a building ceiling and connected with the sleeve to form the cable routing system.
[0009] Further, the bridge assembly comprises:
[0010] A bridge body is arranged on the building ceiling with the opening of the bridge body facing downward, and the port of the bridge body is connected with the port of the sleeve to form a cable routing channel.
[0011] A cable support is arranged in the bridge body to support the cables.
[0012] A cover is arranged at the opening at the bottom of the bridge body to seal the bridge body.
[0013] Further, a groove for mounting the cover is arranged at the lower opening of the bridge body.
[0014] Further, the bridge body is fixed on the building ceiling through the connecting piece, and a first waterproof layer is arranged on the top of the bridge body.
[0015] Further, a fireproof sealing layer is arranged at the connection between the bridge body and the sleeve, and a second waterproof layer is arranged on the surface of the fireproof sealing layer.
[0016] A construction method of a building suspended ceiling cable routing system comprises the following steps:
[0017] S1, embedding a sleeve in a building beam body;
[0018] S2, installing a bridge assembly on a building ceiling to form a routing system in connection with the sleeve.
[0019] Further, the step S1 further comprises the following steps before the step S1:
[0020] S0, obtaining a pre-embedding position map of the sleeve in the building beam body.
[0021] Further, the step S1 comprises the following steps:
[0022] S101, fixing the sleeve on a main reinforcement framework at the pre-embedding position in the building beam body;
[0023] S102, pouring a building main structure.
[0024] Further, the step S2 comprises the following steps:
[0025] S201, after leading out the cable from the sleeve, carrying out fireproof sealing between the bridge assembly and the pre-embedded sleeve, and carrying out waterproof protection on the outer layer;
[0026] S202, installing the bridge body on the building ceiling by using the connecting piece;
[0027] S203, opening holes on both sides of the bridge body, inserting the cable support into the bridge body and fixing the cable support;
[0028] S204, installing the cover on the opening at the bottom of the bridge body.
[0029] Further, in the step S201, the fireproof sealing adopts the fireproof sealing layer, and the waterproof protection adopts the second waterproof layer; and / or,
[0030] The step S202 further comprises: adopting the first waterproof layer to carry out waterproof protection on the connecting surface between the bridge body and the building ceiling.
[0031] The beneficial effects of the present application are as follows:
[0032] This invention discloses a building ceiling cable routing system and its construction method. By setting pre-embedded sleeves in the cable routing system, it eliminates the need for post-construction drilling for cables to pass through after the building beams are formed, thus avoiding affecting the stability of the main structure. Furthermore, it eliminates the need for cable tray components to pass through beams, and the cable tray components do not require hangers for installation, saving space in beams and under the ceiling. This makes it suitable for confined spaces, broadening its applicability, saving material costs, and simplifying the construction process. During construction, by pre-embedding sleeves in the beams, it fundamentally avoids post-construction drilling into the load-bearing structure, effectively ensuring the safety of the main structure. Moreover, by pre-embedding sleeves, the routing of the cable tray components can be predetermined, significantly improving construction efficiency and reducing the costs and labor input of post-construction location confirmation and drilling into the building structure, achieving better construction organization. Attached Figure Description
[0033] Figure 1 This is a structural schematic diagram of a building ceiling cable routing system according to an embodiment of the present invention;
[0034] Figure 2 This is a cross-sectional schematic diagram of the structure at the connection between the sleeve and the cable tray body in an embodiment of the present invention;
[0035] Figure 3 This is a cross-sectional schematic diagram of the cable tray assembly in an embodiment of the present invention;
[0036] Figure 4 This is a three-dimensional schematic diagram of the connector structure in an embodiment of the present invention.
[0037] In the diagram: 1. Sleeve; 201. Cable tray body; 202. Cable support; 203. Cover; 204. Groove; 3. Connector; 4. First waterproof layer; 5. Fireproof sealing layer; 6. Second waterproof layer. Detailed Implementation
[0038] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The advantages and features of the present invention will become clearer from the following description and claims. It should be noted that the drawings are all in a very simplified form and use non-precise proportions, and are only used to facilitate and clarify the illustration of the embodiments of the present invention.
[0039] To make the technical problems solved by the present invention, the technical solutions adopted, and the technical effects achieved clearer, the technical solutions of the embodiments of the present invention will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0040] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected" and "fixed" 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 this invention based on the specific circumstances.
[0041] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0042] Example 1:
[0043] refer to Figures 1 to 4 This embodiment provides a building ceiling cable routing system, including: a sleeve 1 and a cable tray assembly.
[0044] Sleeve 1 is used to be embedded in the building beam so that the cable can pass through the building beam. Sleeve 1 can be made of steel or fireproof plastic pipe.
[0045] The cable tray assembly is used to install on the building ceiling and, when connected to sleeve 1, forms a cable routing system.
[0046] The building ceiling cable routing system of this embodiment, by setting up pre-embedded sleeves 1 in the cable routing system, eliminates the need for post-construction drilling for cables to pass through after the building beams are formed, thus avoiding affecting the stability of the main building. Furthermore, it eliminates the need for cable tray components to pass over beams, and the cable tray components do not require the use of hangers for installation, saving space in the beams and under the ceiling. It is suitable for small spaces, has a wider range of applications, saves material costs, and simplifies the construction process.
[0047] In a preferred embodiment, the cable tray assembly includes: a cable tray body 201, a cable support 202, and a cover 203.
[0048] The cable tray body 201 is installed on the building ceiling with its opening facing downwards. The port of the cable tray body 201 connects with the port of the sleeve 1 to form a cable routing channel. The cable tray body 201 is fixed to the building ceiling by a connector 3, which can be an "L"-shaped stainless steel sheet. The connector 3 can be fixed to the ceiling with expansion bolts, and then connected to the cable tray body 201 with bolts. This provides good stability and prevents the cable tray body 201 from loosening or falling off. By fixing the cable tray body 201 to the ceiling with the connector 3 in combination with expansion bolts and bolts, a significant amount of installation space for brackets is saved, reducing the use of pre-embedded hangers. Compared to pre-embedded hangers, there are more fixing points. Compared to pre-embedded bolts, the installation is more flexible, and the direction of the cable tray components can be adjusted at any time.
[0049] Since the cable tray body 201 is directly fixed to the ceiling, a first waterproof layer 4 can be installed on the top of the cable tray body 201 to prevent internal water seepage. The first waterproof layer 4 can be made of waterproof paint. A fireproof sealing layer 5 is installed at the connection between the cable tray body 201 and the sleeve 1. The fireproof sealing layer 5 can be fireproof putty or fireproof adhesive. A second waterproof layer 6 is installed on the surface of the fireproof sealing layer 5. The second waterproof layer 6 can be made of waterproof paint. The length of the sleeve 1 can be slightly larger than the width of the beam to facilitate temporary sealing during the pouring of the main building structure and to facilitate the construction of the fireproof sealing layer 5 and the second waterproof layer 6.
[0050] Because there is a certain distance between the port of sleeve 1 and the building ceiling in the direction of gravity, a section of inclined cable tray body 201 needs to be installed between the part of the cable tray assembly fixed to the ceiling and the port of sleeve 1, such as... Figure 1 The inclined cable tray body 201 can be fixed by a connecting plate to enhance the stability of the cable tray assembly.
[0051] The cable bracket 202 is installed inside the cable tray body 201 to support the cables. It prevents the cables from directly contacting the bottom cover 203, prevents the cable weight from being concentrated on the cover 203 of the inverted cable tray body 201, avoids the cover 203 from falling off under pressure, and improves reliability. Current ceiling-mounted cable tray installation methods lack hangers and are deeply bonded to the floor slab, resulting in poor seismic performance and easy wear on the cable sheath. The inverted ceiling-mounted cable tray installation method provided by this invention, combined with the cable bracket 202 installed inside the cable tray, allows the cable tray body 201 to replace hangers for shock absorption, improving seismic performance, reducing cable wear, and extending cable lifespan.
[0052] The cover 203 is provided at the opening at the bottom of the cable tray body 201 to seal the cable tray body 201. In this embodiment, the cable tray body 201 is installed in an inverted manner with the opening facing down. The traditional installation method of the cover 203 will fall due to gravity. Therefore, a groove 204 for installing the cover 203 can be provided at the lower opening of the cable tray body 201 so that the cover 203 can be firmly fixed on the cable tray body 201.
[0053] Example 2:
[0054] This embodiment provides a construction method for a building ceiling cable routing system, which includes the following steps: S1-S2, and may also include S0.
[0055] S0. Obtain the pre-embedded location diagram of sleeve 1 within the building beam. Specifically, first confirm and analyze the integrated pipeline data drawings, integrate the requirements with the integrated pipeline data provided by the BIM model, and comprehensively coordinate all cable paths that need to pass through the beam in the BIM model. Accurately determine the model, specifications, coordinate elevation, and relative position of each sleeve 1 to the reinforcement in the beam, generating a detailed pre-embedded diagram of sleeve 1. Submit the refined pre-embedded location diagram of sleeve 1 to the structural designer for formal review, confirming that the cross-sectional loss of the beam due to the opening of sleeve 1 is within the allowable range and will not adversely affect the structural bearing capacity of the beam, thus clarifying the accurate location of the cable tray assembly and the sleeve 1 to be pre-embedded. Through the deep integration of BIM technology and precise construction, the quality goal of "one-time molding, zero post-mining" can be achieved. BIM, or Building Information Modeling, not only includes the geometric shape of the building (length, width, height), but also the physical characteristics, functional information, and process information of all components throughout their entire life cycle.
[0056] S1. Embed sleeve 1 within the building beam. Specifically, after verifying that the beam's load-bearing capacity meets the requirements, use a total station to accurately locate the center point of sleeve 1. Based on the coordinate data provided by the BIM model, mark the center control point of sleeve 1 on the on-site formwork, marking the center point with clear markings (such as crosshairs or paint). Also, mark the edge line and elevation control line of sleeve 1 to ensure zero deviation in the hole position. Subsequently, before the building structure is poured, prepare qualified sleeve 1 according to specifications. After the beam reinforcement is tied and before the formwork is closed, accurately place sleeve 1 in the layout position. Sleeve 1 must be horizontal with a 0° slope. Pre-install sleeve 1 and fix it together with the reinforcement cage, ultimately casting it together with the main structure. Cables are connected across areas via the embedded sleeve 1, ensuring both neat and standardized cable routing and compliance with electrical installation safety standards.
[0057] In a preferred embodiment, step S1 may include the following steps: S101-S102.
[0058] S101. Fix sleeve 1 to the main steel reinforcement cage at the pre-embedded position in the building beam. Specifically, use additional steel bars to weld or tie sleeve 1 to the main steel reinforcement cage at multiple points to ensure that there is no displacement, deformation or floating during the concrete pouring process.
[0059] S102. Before pouring the main building structure, the two ends of the sleeve 1 should be temporarily sealed with tape or foam sealant to prevent concrete from entering.
[0060] S2. Install cable tray components on the building ceiling and connect them to sleeve 1 to form a cable routing system.
[0061] In a preferred embodiment, step S2 may include the following steps: S201-S204.
[0062] S201. After the cable is led out from the conduit 1, fireproof sealing is performed in the gap between the cable tray assembly and the pre-embedded conduit 1, and waterproof protection is applied to the outer layer. The fireproof sealing can be achieved using the fireproof sealing layer 5 as in Example 1, and the waterproof protection can be achieved using the second waterproof layer 6 as in Example 1.
[0063] S202. Install the cable tray body 201 onto the building ceiling using the connector 3 as claimed in claim 4.
[0064] As a preferred embodiment, step S202 may further include: applying a first waterproof layer 4, as in Example 1, to the connection surface between the cable tray body 201 and the building ceiling for waterproof protection.
[0065] S203. Holes are made on both sides of the cable tray body 201, and the cable bracket 202 is inserted into the cable tray body 201 and fixed. The cable bracket 202 can be fixed with screws and nuts.
[0066] S204. Install a cover 203 at the opening at the bottom of the cable tray body 201.
[0067] The construction method of the building ceiling cable routing system in this embodiment can fundamentally avoid the need for drilling holes in the load-bearing structure later by pre-embedding the sleeve 1 in the beam, effectively ensuring the safety of the main structure. Furthermore, by pre-embedding the sleeve 1, the routing of the cable tray components can be set in advance, greatly improving construction efficiency, reducing the process costs and labor input of later location confirmation and building hole drilling, and achieving better construction organization.
[0068] The above description is merely a description of preferred embodiments of the present invention and is not intended to limit the scope of the present invention in any way. Any changes or modifications made by those skilled in the art based on the above disclosure shall fall within the protection scope of the claims.
Claims
1. A cable routing system for building ceilings, characterized in that, include: Sleeve (1) is used to be embedded in the building beam so that the cable can pass through the building beam; The cable tray assembly is used to be installed on the building ceiling and, when connected to the sleeve (1), forms the cable routing system.
2. The building ceiling cable routing system as described in claim 1, characterized in that, The cable tray assembly includes: The cable tray body (201) is installed on the building ceiling with its opening facing downwards, and the port of the cable tray body (201) is connected to the port of the sleeve (1) to form a cable routing channel. A cable bracket (202) is disposed inside the cable tray body (201) and is used to support cables; A cover (203) is provided at the opening at the bottom of the cable tray body (201) for sealing the cable tray body (201).
3. The building ceiling cable routing system as described in claim 2, characterized in that, The lower opening of the cable tray body (201) is provided with a groove (204) for installing a cover (203).
4. The building ceiling cable routing system as described in claim 2, characterized in that, The cable tray body (201) is fixed to the building ceiling by a connector (3), and a first waterproof layer (4) is provided on the top of the cable tray body (201).
5. The building ceiling cable routing system as described in claim 2, characterized in that, A fireproof sealing layer (5) is provided at the connection between the cable tray body (201) and the sleeve (1), and a second waterproof layer (6) is provided on the surface of the fireproof sealing layer (5).
6. The construction method of the building ceiling cable routing system as described in any one of claims 1-5, characterized in that, Includes the following steps: S1. Embed sleeves (1) in the building beam; S2. Install cable tray components on the building ceiling and connect them to the sleeve (1) to form a cable routing system.
7. The construction method of the building ceiling cable routing system as described in claim 6, characterized in that, The procedure before step S1 also includes: S0. Obtain the pre-embedded position diagram of the sleeve (1) in the building beam.
8. The construction method of the building ceiling cable routing system as described in claim 6, characterized in that, Step S1 includes the following steps: S101. Fix the sleeve (1) to the main steel reinforcement skeleton at the pre-embedded position in the building beam; S102, Casting the main structure of the building.
9. The construction method of the building ceiling cable routing system as described in claim 6, characterized in that, Step S2 includes the following steps: S201. After the cable is led out from the sleeve (1), fireproof sealing is performed in the gap between the cable tray assembly and the pre-embedded sleeve (1), and waterproof protection is applied to the outer layer. S202. Install the cable tray body (201) on the building ceiling using the connector (3) as described in claim 4; S203. Holes are made on both sides of the cable tray body (201), and the cable bracket (202) as described in claim 2 is inserted into the cable tray body (201) and fixed. S204. Install the cover (203) as described in claim 2 at the opening at the bottom of the cable tray body (201).
10. The construction method of the building ceiling cable routing system as described in claim 9, characterized in that, In step S201, the fireproof sealing adopts the fireproof sealing layer (5) as described in claim 5, and the waterproof protection adopts the second waterproof layer (6) as described in claim 5; and / or, Step S202 further includes: applying the first waterproof layer (4) as described in claim 4 to the connection surface between the cable tray body (201) and the building ceiling for waterproof protection.