Modularized structure connecting and mounting device for cable bridge in electrical vertical shaft

By using a modular structure connection and installation device for cable trays in electrical shafts, the construction process is simplified, solving the problems of cumbersome and costly cable tray construction, and achieving efficient and low-cost cable tray installation and maintenance.

CN224177860UActive Publication Date: 2026-04-28CONSTR & INSTALLATION ENG THE THIRD ENG GROUP OF CHINA RAILWAY +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CONSTR & INSTALLATION ENG THE THIRD ENG GROUP OF CHINA RAILWAY
Filing Date
2025-05-16
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

The existing technology for constructing cable trays in electrical shafts involves complicated procedures, long construction periods, high costs, and poor construction quality.

Method used

The modular structure of the cable tray in the electrical shaft is used for connection and installation. It includes a frame, connecting ears and fasteners. The frame is adapted to the reserved holes and is connected to the floor formwork through the fasteners, which simplifies the construction process. No disassembly is required after the concrete has solidified.

Benefits of technology

Reduce construction steps, lower costs, improve construction efficiency and quality, and simplify the later installation and maintenance of cable trays.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a cable bridge modular structure connecting and installing device in an electrical vertical shaft, which comprises a frame body, the frame body is of a hollow structure, the size of the frame body is matched with the size of a reserved hole for a cable bridge to penetrate through, and the frame body is provided with a connecting hole; the connecting lugs are arranged around the outer wall of the frame body, the connecting lugs are located on the same plane, and at least one through hole is formed in each connecting lug; and the first fastener is used for penetrating through the through hole to be connected with the floor template. The device is easy to install, after the device is installed, concrete can be poured on a floor formwork, after the concrete is solidified, the device can form a reserved hole without being disassembled, the construction process is simple, the construction technical difficulty is reduced, the processes of secondary formwork erecting, fireproof blocking, root closing-up and the like of the cable bridge are omitted, and the construction efficiency is improved. The construction cost is reduced, and the work efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of electromechanical installation engineering technology, and in particular to a modular structure connection and installation device for cable trays in electrical shafts. Background Technology

[0002] An electrical shaft is a shaft with a certain cross-section that extends from the ground floor to the top floor of a building. Each floor has a small distribution room, which is part of the shaft. This type of electrical shaft, used for laying the main power distribution lines, is separated by floor slabs on each floor, with only a certain number of pre-reserved openings. These pre-reserved openings are used to install cable trays.

[0003] In existing technologies, the fabrication of pre-reserved holes requires, first, marking the location of the opening precisely on the floor slab after the reinforcement bars are tied, then fabricating and installing formwork according to the marked locations, pouring concrete, and finally removing the formwork after the concrete has hardened. During the installation of cable trays, construction procedures such as hoisting formwork, pouring concrete, removing formwork, and fireproofing are performed around the cable trays.

[0004] In the process of realizing this utility model, the inventors discovered that the existing technology has at least the following problems: Although the existing traditional technical solutions and construction processes can achieve the functional requirements after construction, the construction is cumbersome, the construction period is long, and the consumption of labor and wooden formwork materials is large; the demolding is cumbersome and the appearance quality is poor; secondary formwork and fireproof sealing are required afterward; the construction investment is large, which affects the overall construction period and the construction cost is high. Utility Model Content

[0005] This utility model aims to solve, at least to a certain extent, one of the technical problems in the related art.

[0006] Therefore, the purpose of this utility model is to propose a modular structure connection and installation device for cable trays in electrical shafts, which can reduce the later processes of cable tray hoisting, sealing and root closing, reduce construction costs and improve work efficiency.

[0007] To achieve the above objectives, this utility model proposes a modular structure connection and installation device for cable trays in electrical shafts, comprising:

[0008] The frame is a hollow structure, and its dimensions are adapted to the dimensions of the reserved holes for cable trays. The frame is provided with connection holes.

[0009] Multiple connecting ears are arranged around the outer wall of the frame, the connecting ears are located on the same plane, and each connecting ear is provided with at least one through hole;

[0010] The first fastener is used to connect to the floor template after passing through the through hole.

[0011] According to this utility model, a modular structure connection and installation device for cable trays in electrical shafts is provided. By setting a frame, connecting ears, and a first fastener, the dimensions of the frame are adapted to the dimensions of the pre-reserved holes for the cable trays. The first fastener connects the frame to the floor formwork, facilitating installation. After installation, concrete can be poured onto the floor formwork. Once the concrete has solidified, the device forms the pre-reserved holes without disassembly, simplifying the construction process, reducing technical difficulty, and saving on secondary formwork support, fireproofing, and root finishing of the cable trays, thus reducing construction costs and improving efficiency. Furthermore, the connecting ears on the frame are located on the same plane, enabling precise positioning with the floor formwork and improving construction quality.

[0012] According to one embodiment of the present invention, the frame includes first plates on the front and rear sides and second plates on the left and right sides, wherein the first plates and the second plates are integrally formed.

[0013] According to one embodiment of the present invention, the second plate extends in the vertical direction to the edge of the first plate, and the connecting hole is provided at the upper and lower ends of the second plate.

[0014] According to one embodiment of the present invention, the cross-sectional shape of the connecting ear is quadrilateral.

[0015] According to one embodiment of the present invention, a second fastener is further included, which is used to connect the cable tray through the connection hole.

[0016] According to one embodiment of the present invention, the connecting ear is welded to or integrally formed with the frame.

[0017] According to one embodiment of the present invention, the first fastener is a template pin.

[0018] According to one embodiment of the present invention, the second fastener is a bolt.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. Wherein:

[0021] Figure 1This is a top view of a modular structure connection and installation device for cable trays in an electrical shaft, as proposed in one embodiment of this utility model.

[0022] Figure 2 It is along Figure 1 A cross-sectional view along line AA in the middle.

[0023] Figure 3 This is a schematic diagram of the usage status of the modular structure connection and installation device for cable trays in an electrical shaft according to an embodiment of this utility model.

[0024] Explanation of reference numerals in the attached figures:

[0025] 10-Frame, 11-First plate, 12-Second plate, 20-Connecting ear, 21-Through hole, 30-Second fastener, 40-First fastener, 50-Concrete floor slab, 60-Floor formwork. Detailed Implementation

[0026] The embodiments of this utility model are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model. Rather, the embodiments of this utility model include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0027] The following is for reference. Figures 1 to 3 This invention describes a modular structure connection and installation device for cable trays in electrical shafts according to an embodiment of the present invention.

[0028] Combination Figures 1 to 3 As shown, the modular structure connection and installation device for cable trays in electrical shafts according to an embodiment of the present invention includes a frame 10, a plurality of connecting ears 20 and a first fastener 40.

[0029] The frame 10 is a hollow structure, and its dimensions are adapted to the dimensions of the pre-drilled holes for cable trays. The frame 10 has connection holes. The cross-section of the frame 10 matches the cross-sectional shape of the pre-drilled holes. Typically, cable trays have a rectangular cross-section; therefore, in this example, the cross-section of the frame 10 is also rectangular. The frame 10 can be made of a metal that is not easily deformed, such as galvanized steel sheet.

[0030] Connecting ears 20 are arranged around the outer wall of the frame 10, and are located on the same plane. Each connecting ear 20 has at least one through hole 21. The connecting ears 20 can be connected to the frame 10 by welding, integral molding, or sheet metal bending. The material of the connecting ears 20 is determined according to actual needs and is not limited. For example, the connecting ears 20 are also made of metal, providing high structural strength. The number of connecting ears 20 is determined according to actual needs; for example, there are two connecting ears 20 on each side wall of the frame 10. The specific type of connecting ears 20 is determined according to actual needs and is not limited. For example, the cross-sectional shape of the connecting ears 20 can be circular, polygonal, triangular, irregularly shaped, or a combination thereof. The connecting ears 20 are perpendicular to the frame 10, and the connecting ears 20 on the same plane can be laid flat on the floor formwork 60. After pouring, the hollow structure of the frame 10 forms the reserved holes.

[0031] The first fastener 40 is used to connect to the floor formwork 60 after passing through the through hole 21. The specific type of the first fastener 40 is set according to actual needs and is not limited thereto. For example, the first fastener 40 is a formwork pin, which can withstand greater tensile and compressive forces and maintain the stability of the frame 10 during concrete pouring.

[0032] In this embodiment of the utility model, the modular structure connection and installation device for cable trays in electrical shafts is placed in a designated position, and the first fastener 40 is fixed to the floor formwork 60. Concrete is then poured, and after hardening, a concrete floor slab 50 is formed. The floor formwork 60 is then removed for repeated use. The first fastener 40, protruding from the bottom of the connecting ear 20, is cut off to maintain the flatness of the concrete floor slab. During subsequent electromechanical installation, the cable tray is connected to the connecting holes on the frame 10.

[0033] According to an embodiment of this utility model, the modular structure connection and installation device for cable trays in electrical shafts comprises a frame, connecting ears, and a first fastener. The size of the frame is adapted to the size of the reserved holes for the cable trays. The first fastener connects the frame to the floor formwork, facilitating installation. After installation, concrete can be poured onto the floor formwork. Once the concrete has solidified, the device forms the reserved holes without disassembly, simplifying the construction process, reducing technical difficulty, and saving on secondary formwork support, fireproofing, and root finishing of the cable trays, thereby reducing construction costs and improving efficiency. Furthermore, the connecting ears on the frame are located on the same plane, enabling precise positioning with the floor formwork and improving construction quality.

[0034] like Figure 2As shown, in some embodiments, the frame 10 includes first plates 11 on the front and rear sides and second plates 12 on the left and right sides. The first plates 11 and the second plates 12 are integrally formed, which can reduce assembly processes, improve production efficiency, and enhance structural strength. In one example, the second plates 12 extend in the vertical direction to the edge of the first plates 11, and the connecting holes are located at the upper and lower ends of the second plates 12 to facilitate the subsequent connection of cable trays.

[0035] In some embodiments, the cross-sectional shape of the connecting ear 20 is quadrilateral. The quadrilateral shape can increase the contact area with the floor template 60 and also make it easier to identify the direction.

[0036] like Figure 2 As shown, the modular cable tray connection and installation device in the electrical shaft also includes a second fastener 30, which is used to connect the cable tray through the connection hole. The second fastener 30 is a bolt, and the cable tray and the frame 10 form a detachable connection, which facilitates subsequent maintenance and replacement of the cable tray.

[0037] In summary, the modular structure connection and installation device for cable trays in electrical shafts according to this utility model embodiment has the following advantages compared with traditional technical solutions: 1. Simplified procedures. During flat panel construction, the cable trays are directly fixed on the floor formwork, simplifying the construction process, reducing operations, and lowering the technical difficulty for workers. 2. Cost savings. In later construction, the cable trays can be directly installed by insertion and insertion, eliminating the need for formwork hoisting, repairs, and root fireproofing, saving labor, materials, and time costs. 3. Improved quality. Precise positioning on the formwork ensures straight and non-twisted cable tray installation in the later stages. No secondary formwork hoisting or sealing is required, resulting in a good overall appearance and reducing the risk of poor construction quality affecting the overall forming quality of the shaft.

[0038] It should be noted that in the description of this utility model, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance. Furthermore, in the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0039] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., 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, an electrical connection, or a connection that allows communication between them; 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, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0040] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0041] In the description of this utility model, the terms "left", "right", "front", "rear", 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 this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0042] Any process or method described in the flowchart or otherwise herein can be understood as representing a module, segment, or portion of code comprising one or more executable instructions for implementing a particular logical function or process, and the scope of the preferred embodiments of the present invention includes additional implementations in which functions may be performed not in the order shown or discussed, including substantially simultaneously or in reverse order according to the functions involved, as should be understood by those skilled in the art to which embodiments of the present invention pertain.

[0043] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0044] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A modular structure connection and installation device for cable trays in electrical shafts, characterized in that, include: The frame (10) is a hollow structure. The size of the frame (10) is adapted to the size of the reserved hole for cable trays. The frame (10) is provided with connection holes. Multiple connecting ears (20) are arranged around the outer wall of the frame (10), the connecting ears (20) are located on the same plane, and the connecting ears (20) are provided with at least one through hole (21); A first fastener (40) is used to connect to the floor template (60) after passing through the through hole (21).

2. The modular structure connection and installation device for cable trays in electrical shafts according to claim 1, characterized in that, The frame (10) includes a first plate (11) on the front and rear sides and a second plate (12) on the left and right sides, wherein the first plate (11) and the second plate (12) are integrally formed.

3. The modular structure connection and installation device for cable trays in electrical shafts according to claim 2, characterized in that, The second plate (12) extends in the vertical direction to the edge of the first plate (11), and the connecting holes are provided at the upper and lower ends of the second plate (12).

4. The modular structure connection and installation device for cable trays in electrical shafts according to claim 1, characterized in that, The cross-sectional shape of the connecting ear (20) is quadrilateral.

5. The modular structure connection and installation device for cable trays in electrical shafts according to claim 1, characterized in that, It also includes a second fastener (30) for connecting the cable tray through the connection hole.

6. The modular structure connection and installation device for cable trays in electrical shafts according to claim 1, characterized in that, The connecting ear (20) is welded to or integrally formed with the frame (10).

7. The modular structure connection and installation device for cable trays in electrical shafts according to claim 1, characterized in that, The first fastener (40) is a template pin.

8. The modular structure connection and installation device for cable trays in electrical shafts according to claim 5, characterized in that, The second fastener (30) is a bolt.