A rapid installation method for cables in a distribution room and a movable hanging bracket

Abstract

The present application relates to a rapid installation method for cables in a distribution room and a movable hanging bracket. The movable hanging bracket includes a fixed hanging rod vertically fixed on a structural roof slab or a structural cross beam and a movable hanging rod. The movable hanging rod includes a fixed section and a movable section. One end of the fixed section is fixedly connected to the structural roof slab or the structural cross beam, and the other end is detachably connected to the movable section. A cross arm is connected between the fixed hanging rod and the movable hanging rod, and the cross arm extends to the side of the movable hanging rod away from the fixed hanging rod. An upper cross bar is also fixedly connected between the movable hanging rod and the fixed hanging rod, and one end of the upper cross bar also extends to the side of the movable hanging rod away from the fixed hanging rod. A vertical rod is detachably connected between the upper cross bar and the end of the cross arm close to the movable hanging rod. The present application has the effects of improving the laying efficiency of cables and shortening the construction period.

Description

Technical Field

[0001] The present application relates to the field of cable installation engineering, and in particular to a method for quickly installing cables in a power distribution room and a movable hanger. Background Art

[0002] Current high-end electromechanical projects generally have the characteristics of tight construction period, high standards, and complex electrical systems. In addition, there are many cabinets in the substation room, and the cable circuits are complex. The cables in the bridge need to be laid in multiple layers. The cable models are generally large, heavy, and not easy to bend.

[0003] At present, in most projects, the distribution cabinet is generally within the construction scope of the power supply bureau. The construction of the power supply bureau is generally inserted late. Before the installation of its distribution cabinet, it is impossible to accurately locate the bridge opening and the cable underpass position in advance. For some special projects that need to use electricity in advance, such as early heating use, early business use of some areas, etc., it is not conducive to the construction period. At present, in the distribution room, the connection section between the bridge and the distribution cabinet adopts the lower opening form. The conventional practice of cable installation is to install it longitudinally along the bridge after the fixed hanger and the bridge are installed. Cable dragging will occur during installation, especially when the cables are installed in layers, the outer skin between the upper and lower cables is very easy to wear, resulting in the quality of the cable installation itself being affected; in addition, when the cable is laid longitudinally along the bridge, especially when the cable is installed in multiple layers in the bridge, the installation order is not easy to control; especially for the excellence project, the appearance and installation quality requirements of the cable, bridge and hanger are more stringent. Summary of the invention

[0004] In order to improve the laying efficiency of cables and shorten the construction period, the present application provides a quick installation method and a movable hanger for cables in a distribution room.

[0005] In a first aspect, the present application provides a method for quickly installing cables in a power distribution room, which adopts the following technical solution:

[0006] A method for quickly installing cables in a power distribution room comprises the following steps:

[0007] S1. Cable pre-arrangement: Plan and arrange the cables to be installed in advance;

[0008] S2. Fabrication of movable hanging brackets: According to the preliminary cable layout, calculate the dimensions of the movable hanging brackets, design the movable hanging brackets, and carry out processing in advance. The movable hanging brackets include fixed suspension rods and movable suspension rods. The movable suspension rod includes a fixed section and a movable section. One end of the fixed section is fixedly connected to the structural roof slab or structural cross beam, and the other end is detachably connected to the movable section. A cross arm is connected between the fixed suspension rod and the movable suspension rod. One end of the cross arm is bolted to the fixed suspension rod, and the other end is pinned to the movable suspension rod, and the cross arm extends to the side of the movable suspension rod away from the fixed suspension rod. An upper cross bar is also fixedly connected between the movable suspension rod and the fixed suspension rod. The upper cross bar is bolted to the fixed suspension rod and the movable suspension rod. One end of the upper cross bar also extends to the side of the movable suspension rod away from the fixed suspension rod. A vertical rod is detachably connected to one end of the cross arm and the upper cross bar close to the movable suspension rod. The vertical rod is pinned to the cross arm and the upper cross bar, and make temporary support rods in advance according to the distance between the movable hanging brackets and the ground;

[0009] S3. Installation of power distribution cabinets: Install the power distribution cabinets at the designed positions and conduct acceptance;

[0010] S4. Installation of movable hanging brackets: Install a plurality of movable hanging brackets on the floor slab or structural cross beam. The plurality of movable hanging brackets are evenly spaced along the cable route;

[0011] S5. Cable laying: First, install the cables in the temporary placement area, and then install them into the cable tray;

[0012] S6. Demolition of the upper cross bar and the vertical rod: After the cable laying is completed, remove the upper cross bar and the vertical rod for use in the next row of movable hanging brackets;

[0013] S7. Commissioning and power transmission: After all the cables in the power distribution room are installed and crimped, conduct cable testing. After passing the test, conduct power transmission;

[0014] S8. Replacement of the movable suspension rod and the cross arm: Use the temporary support rod to support the cable tray, then replace the movable suspension rod with a fixed suspension rod, remove the cross arm, and then install a formal cross arm with a length equal to the distance between the two fixed suspension rods between the two fixed suspension rods.

[0015] By adopting the above technical solution, before the formal installation of the cables, the cables are temporarily laid on the ground and numbered and marked. After the installation of the power distribution cabinets is completed, the cables are first installed in the temporary placement area surrounded by the upper cross bar, the cross arm, the vertical rod and the movable suspension rod, and then the cables are horizontally moved and installed in the cable tray. During this process, the vertical rod and the movable cable alternately play a load-bearing role. The structure is ingenious and simple, which is convenient for construction. This application prepares for cable laying before the completion of the construction of the power distribution cabinet, greatly shortening the cable installation time from the completion of the installation of the power distribution cabinet to power transmission, improving the construction efficiency and shortening the construction period;

[0016] In addition, dragging during vertical cable installation is avoided, thereby preventing serious abrasion of the cable skin, enhancing the overall appearance, and improving the installation quality of the details.

[0017] Optionally, before installing the switchgear and distribution cabinet, the external cable laying from the distribution room to the distribution boxes on each floor and the crimping of the cable with each floor's distribution cabinet need to be completed.

[0018] Optionally, in step S1, pre-arrange the cables in the distribution room: according to the distance of the cables entering the distribution cabinet from the distribution cabinet, the cables entering the distribution room enter the first distribution cabinet and are laid in the middle of the cable tray; for the cables entering the distribution room that are getting farther away from the distribution cabinet, they are arranged left and right with the cables entering the first distribution cabinet, clarify the arrangement order and position of the cables in the cable tray, issue a cross-sectional diagram of the cable laying in the cable tray, clarify the laying position and number of each cable; before the construction of the distribution cabinet, temporarily lay the cables entering the distribution room on the temporary brackets along the walls of the distribution room, and the positions and layers of the cables laid on the temporary brackets should be consistent with the positions and layers of the cables in the cable tray.

[0019] By adopting the above technical solution, pre-arranging and numbering the cables in advance and clarifying the laying positions of the cables can improve the efficiency of formal cable laying.

[0020] Optionally, in step S5, open the vertical rod, place the cable into the temporary placement area surrounded by the vertical rod, the upper crossbar, the movable hanging rod, and the cross arm, then close the vertical rod, open the movable section, and then install the cable into the cable tray.

[0021] By adopting the above technical solution, when the vertical rod is opened, the movable hanging rod plays a load-bearing role; when the vertical rod is closed and the movable section is opened, the vertical rod plays a load-bearing role. The structural design is ingenious, the operation is simple, it is convenient for cable laying, and the efficiency of cable laying is improved.

[0022] Optionally, in step S5, to reduce cable bending and speed up the installation progress, the cable is preferably moved horizontally from the temporary bracket to the movable hanging bracket.

[0023] By adopting the above technical solution, the cable bending is reduced and the construction quality is improved.

[0024] In the second aspect, the present application provides a movable hanging bracket, adopting the following technical solution:

[0025] A movable hanging bracket structure for quickly installing cables, comprising a fixed hanging rod vertically fixed on a structural roof or a structural cross beam and a movable hanging rod. The movable hanging rod includes a fixed section and a movable section. One end of the fixed section is fixedly connected to the structural roof or the structural cross beam, and the other end is detachably connected to the movable section. A cross arm is connected between the fixed hanging rod and the movable hanging rod. One end of the cross arm is detachably connected to the fixed hanging rod, and the other end is detachably connected to the movable hanging rod, and the cross arm extends to the side of the movable hanging rod away from the fixed hanging rod. An upper cross bar is also fixedly connected between the movable hanging rod and the fixed hanging rod. The upper cross bar is bolted to the fixed hanging rod and the movable hanging rod. One end of the upper cross bar also extends to the side of the movable hanging rod away from the fixed hanging rod. A vertical rod is detachably connected to one end of the upper cross bar and the cross arm close to the movable hanging rod. The vertical rod is connected to the cross arm and the upper cross bar by a pin. By adopting the above technical solution, the vertical rod is installed by a pin, the operation is simple, and the installation and disassembly are convenient.

[0026] By adopting the above technical solution, the hanging bracket structure is simple and easy to manufacture, and in use, the structure is ingenious and easy to operate, and the efficiency of cable laying can be improved.

[0027] Optionally, after the cable laying is completed, the movable hanging rod is removed and replaced with a fixed hanging rod, and the fixed hanging rod and the cross arm are bolted.

[0028] By adopting the above technical solution, the movable hanging rod is replaced with a fixed hanging rod to form a formal hanging bracket, making the cable installation more stable, and the fixed hanging rod is bolted, and the connection method is simple and easy to operate.

[0029] Optionally, after the cable laying is completed, the vertical rod and the upper cross bar are removed after a row of cables are laid for use in the next row of cable laying.

[0030] By adopting the above technical solution, the vertical rod and the upper cross bar can be reused, saving materials and reducing construction costs.

[0031] The cross arm is removed after the cable laying is completed, and a formal cross arm is installed between the two fixed hanging rods. After the removed cross arm is cut and rust-proof processed, it is used as the formal cross arm of the hanging bracket when laying the next row of cables.

[0032] By adopting the above technical solution, the cross arm can be reused, saving construction materials.

[0033] In summary, the present application includes at least one of the following beneficial technical effects:

[0034] 1. Before the formal installation of the cable, temporarily lay the cable on the ground and number it. After the power distribution cabinet is installed, first install the cable in the temporary placement area surrounded by the upper crossbar, cross arm, vertical pole and movable hanging rod, and then horizontally move the cable to install it in the cable tray. During this process, the vertical pole and the movable cable take the load-bearing role alternately. The structure is ingenious and simple, which is convenient for construction. This application prepares for cable laying before the completion of the power distribution cabinet construction, greatly shortening the cable installation time between the completion of the power distribution cabinet installation and the power transmission, improving the construction efficiency and shortening the construction period;

[0035] 2. According to the cross-sectional view of the cable layout in the cable tray, horizontal installation is easier to control than longitudinal installation along the cable tray. The installation speed is fast, greatly shortening the cable installation time between the completion of the power distribution cabinet installation and the power transmission, ensuring that early power consumption operation and related commissioning work can be quickly realized after the introduction of the municipal formal power;

[0036] 3. The detailed installation quality is high, the cable is not prone to distortion, avoiding serious abrasion of the cable skin during longitudinal installation, and the overall appearance is strong, meeting the award-winning requirements of the project;

[0037] 4. The temporary support pole can be quickly installed and disassembled, with strong turnover and can be reused many times, reducing the extra material loss as much as possible while ensuring efficiency;

[0038] 5. The hanging bracket uses pins and bolts for connection throughout the process, eliminating on-site hot work operations, improving construction safety and saving welding costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 It is a schematic three-dimensional structure diagram of an embodiment of the present application.

[0040] Figure 2 It is a schematic structural diagram of removing the upper crossbar and the vertical pole in an embodiment of the present application.

[0041] Figure 3 It is a schematic structural diagram of the formal hanging bracket in an embodiment of the present application.

[0042] Figure 4 It is a schematic structural diagram of the temporary support in the power distribution room in an embodiment of the present application.

[0043] Description of the reference numerals: 1, fixed hanging rod; 11, anchor plate; 2, movable hanging rod; 21, fixed section; 22, movable section; 3, cross arm; 31, formal cross arm; 4, upper crossbar; 5, vertical pole; 6, cable tray; 7, temporary placement area; 8, temporary support rod; 81, support plate; 9, temporary support. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0044] The following is a further detailed description of the present application in combination with the attached Figures 1-3 drawings.

[0045] An embodiment of the present application discloses a movable hanging bracket structure for quickly installing cables. Refer to Figure 1 , a movable hanging bracket structure for quickly installing cables includes a fixed hanging rod 1, a movable hanging rod 2, a cross arm 3, an upper cross bar 4, a vertical rod 5, and a cable tray 6.

[0046] The fixed hanging rod 1 and the movable hanging rod 2 are installed on the structural top plate or the structural cross beam. The cross arm 3 and the upper cross bar 4 are respectively connected between the fixed hanging rod 1 and the movable hanging rod 2, and one ends of the cross arm 3 and the upper cross bar 4 respectively extend out of the movable hanging rod 2. A vertical rod 5 is connected between the upper cross bar 4 and the cross arm 3; the upper cross bar 4, the cross arm 3, the vertical rod 5, and the movable hanging rod 2 enclose a temporary placement area 7 for temporarily installing cables. First, a plurality of cables are placed in the temporary placement area 7, and then the cables are installed into the cable tray 6 by converting the vertical rod 5 and the movable hanging rod 2, changing the longitudinal dragging installation of the cables into a lateral installation, improving the installation efficiency, and avoiding cable abrasion, thus improving the construction quality.

[0047] One end of the fixed hanging rod 1 is fixedly connected with an anchor plate 11. The anchor plate 11 is a rectangular plate, and bolt holes are respectively opened at the four corners close to the anchor plate 11. The anchor plate 11 and the fixed hanging rod 1 are installed on the structural top plate or the structural cross beam through expansion bolts. The movable hanging rod 2 includes a fixed section 21 and a movable section 22. Pin holes are respectively opened at one ends of the fixed section 21 and the movable section 22, and the fixed section 21 and the movable section 22 are connected by a pin. An anchor plate 11 is fixedly connected to the end of the fixed section 21 far from the movable section 22. The movable hanging rod 2 is installed on the structural top plate or the structural cross beam in the same way as the fixed hanging rod 1. The fixed hanging rod 1 and the movable hanging rod 2 are both vertically arranged, and the fixed hanging rod 1 and the movable hanging rod 2 are arranged oppositely.

[0048] The cross arm 3 is fixedly connected to one side of the fixed hanging rod 1 and the movable hanging rod 2, and the cross arm 3 is arranged at the end of the fixed hanging rod 1 and the movable hanging rod 2 far from the anchor plate 11. One end of the cross arm 3 is fixedly connected to one end of the fixed hanging rod 1 through a bolt, and the end of the movable hanging rod 2 far from the anchor plate 11 is connected to the cross arm 3 through a pin. The end of the cross arm 3 far from the fixed hanging rod 1 extends to the side of the movable hanging rod 2 far from the fixed hanging rod 1.

[0049] The upper cross bar 4 is also fixedly connected to one side of the fixed hanging rod 1 and the movable hanging rod 2, and the upper cross bar 4 and the cross arm 3 are arranged parallel to each other. One end of the upper cross bar 4 is fixedly connected to the fixed hanging rod 1 through a bolt, and the upper cross bar 4 is also connected to the movable hanging rod 2 through a bolt. Moreover, the upper cross bar 4 is located on the fixed section 21, and the end of the upper cross bar 4 far from the fixed hanging rod 1 extends to the side of the movable hanging rod 2 far from the fixed hanging rod 1.

[0050] The vertical rod 5 is arranged on the side of the movable hanging rod 2 away from the fixed hanging rod 1. One end of the vertical rod 5 is detachably connected to one end of the upper crossbar 4 through a pin, and the other end of the vertical rod 5 is also detachably connected to one end of the cross arm 3 through a pin.

[0051] The upper crossbar 4, the cross arm 3, the movable hanging rod 2 and the vertical rod 5 enclose a temporary placement area 7 for temporarily installing cables. The upper crossbar 4, the cross arm 3, the movable hanging rod 2 and the fixed hanging rod 1 enclose a permanent installation area for installing cables. In the permanent installation area, a cable tray 6 for placing cables is installed, and the cable tray 6 is placed on the cross arm 3.

[0052] The embodiment of the present application also discloses a method for quickly installing cables in a distribution room:

[0053] S1. Cable pre-arrangement: Plan and pre-arrange the cables to be installed in the cable tray 6 in advance. First, when laying the first layer of cables in the cable tray, the cable entering the first distribution cabinet is arranged in the middle position of the cable tray. After that, for the cables of the subsequent distribution cabinets, according to the distance of the distribution cabinets, they are arranged left and right with the cable entering the first distribution cabinet in the cable tray. For example, the cable entering the second distribution cabinet is laid to the left or right of the middle position of the cable tray, and the cable entering the third distribution cabinet is laid to the right or left of the middle position of the cable tray, and so on until the laying of the first layer of cables in the cable tray is completed. Among them, after the cable entering the first distribution cabinet passes through to the wiring position of the distribution cabinet, the cable entering the second distribution cabinet is laid to the middle position of the cable tray. After the cable entering the second distribution cabinet passes through to the wiring position of the distribution cabinet, the cable entering the third distribution cabinet is laid to the middle position of the cable tray, and so on. When laying the second layer of cables in the cable tray, refer to the laying method of the first layer of cables in the cable tray, and so on until all the cables entering the distribution cabinets are laid. Determine the arrangement order and end positions of each cable in the cable tray by the above method, and issue a cross-sectional view of the cable laying in the cable tray (6) to clarify the laying positions and numbers of each cable. During the construction period, in the case that the distribution cabinets enter the site relatively late, in order to speed up the construction progress, the cables entering the distribution room need to be laid along the cable tray outside the distribution room in accordance with the cross-sectional view of the cable laying in the cable tray (6) first. After the cables enter the distribution room, in order to ensure the smoothness of the cable laying positions, order and routing, the cables after entering the distribution room are temporarily laid on the temporary support 9 along the wall of the distribution room (refer to Figure 4 ), and the positions and layers of the cables laid on the temporary support 9 should be consistent with the positions and layers of the cables in the cable tray, so as to facilitate the subsequent control of the cable installation quality and progress.

[0054] S2. Fabrication of movable hanging brackets: According to the pre-arrangement of cables, review the dimensions of the cable tray 6, calculate the spacing of movable hanging brackets, design movable hanging brackets, conduct stress analysis and select sections, bolts and pins. Issue the processing drawings of movable hanging brackets according to the design and carry out prefabrication in advance. Fabricate temporary support rods in advance according to the height of the bottom of the movable hanging bracket from the ground.

[0055] S3. Installation of distribution cabinets: Install the distribution cabinets at the designed positions and conduct acceptance.

[0056] S4. Installation of movable hanging brackets: When installing movable hanging brackets, refer to Figure 1 , install multiple movable hanging brackets on the floor slab or structural cross beam. The multiple movable hanging brackets are evenly spaced along the cable route. First, install the fixed suspension rod 1, movable suspension rod 2 and cross arm 3, and temporarily do not install the upper cross bar 4 and vertical rod 5. Then install the cable tray 6 on the cross arm 3, and then install the upper cross bar 4 and vertical rod 5 to complete the installation of the movable hanging brackets.

[0057] S5. Cable laying: Pull out the pin at the connection between the vertical rod 5 and the cross arm 3, open the vertical rod 5. At this time, the movable suspension rod 2 and the fixed suspension rod 1 play a load-bearing role. Place the cables on multiple temporary brackets horizontally in the temporary placement area 7 through the opened vertical rod 5, and then fix the vertical rod 5 and connect the vertical rod 5 to the cross arm 3. Pull out the pin at the connection between the movable section 22 and the cross arm 3 and open the movable section 22. At this time, the vertical rod 5 and the fixed suspension rod 1 play a load-bearing role. Horizontally move the cables in the temporary placement area 7 into the cable tray 6 in the permanent installation area through the space between the fixed section 21 and the cross arm 3, and then install the movable section 22 between the fixed section 21 and the cross arm 3 again to complete the laying of this batch of cables; repeat the above operations until all the cables are laid in the cable tray 6 to complete the cable laying.

[0058] S6. Demolish the upper cross bar 4 and the vertical rod 5: Refer to Figure 2 , after the cable laying is completed, demolish the upper cross bar 4 and the vertical rod 5 for use in the next row of movable hanging brackets.

[0059] S7. Commissioning and power-on: After all the cables in the distribution room are installed and crimped, conduct cable testing. After passing the test, power on.

[0060] S8. Replace the movable suspension rod 2 and the cross arm 3: Refer to Figure 2 and Figure 3, first, use a temporary support rod 8 to support the bridge 6 at the position of the replaceable movable suspension rod 2. The top end of the temporary support rod 8 abuts against the bottom surface of the bridge 6, and the bottom end abuts against the structural ground. The two ends of the temporary support rod 8 are respectively fixed with a support plate 81. The support plate 81 can increase the contact area between the temporary support rod 8 and the bridge 6 and the structural ground. A rubber pad (not shown in the figure) is also pasted on the top surface of the support plate 81 at the top end of the temporary support rod 8. The temporary support rod 8 stably supports the bridge 6. Then, remove the movable suspension rod 2 and the cross arm 3 for the next row of movable hangers. Install the fixed suspension rod 1 at the original position where the movable suspension rod 2 was installed. Then install a formal cross arm 31 with a length equal to the distance between the two fixed suspension rods 1, and use bolts to connect the two fixed suspension rods 1 to the opposite ends of the formal cross arm 31 respectively to form the final formal hanger. Repeat the above operations to replace each movable hanger with a formal hanger.

[0061] The embodiment of the present application discloses a method for quickly installing cables in a distribution room and the implementation principle of a movable hanger: wait for the installation of the distribution cabinet to be completed and then install the movable hanger. First, install the cable in the temporary placement area 7 and then install it in the bridge 6 to complete the cable installation; when waiting for the installation of the distribution cabinet to be completed in the present application, the cable layout numbering and the installation preparation of the movable hanger are carried out in advance, and the cable installation is changed from the traditional longitudinal dragging along the bridge 6 to the lateral movement installation, which is more convenient to control, has a fast installation speed, greatly shortens the cable installation time between the completion of the distribution cabinet installation and the power transmission, improves the construction efficiency, shortens the construction period, and during the installation process, the cable is not easily twisted, avoiding the dragging during the longitudinal installation of the cable, thus avoiding serious abrasion of the cable skin, having a strong overall appearance, and improving the installation quality of the details; in addition, the present application can be quickly installed and disassembled, has strong turnover, can be reused multiple times, and saves construction costs.

[0062] The above are all the preferred embodiments of the present application. The protection scope of the present application is not limited by this. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application should be covered within the protection scope of the present application.

Claims

1. A rapid installation method for cables in a distribution room, characterized in that: It includes the following steps: S1. Cable pre-arrangement: Plan and pre-arrange the cables to be installed in advance. S2. Fabrication of movable hanging brackets: According to the cable pre-arrangement, calculate the dimensions of the movable hanging brackets, design the movable hanging brackets, and process them in advance. The movable hanging bracket includes a fixed hanging rod (1) and a movable hanging rod (2). The movable hanging rod (2) includes a fixed section (21) and a movable section (22). One end of the fixed section (21) is fixedly connected to the structural roof or the structural cross beam, and the other end is detachably connected to the movable section (22). A cross arm (3) is connected between the fixed hanging rod (1) and the movable hanging rod (2). One end of the cross arm (3) is bolted to the fixed hanging rod (1), and the other end is pinned to the movable hanging rod (2). And the cross arm (3) extends to the side of the movable hanging rod (2) away from the fixed hanging rod (1). An upper cross bar (4) is also fixedly connected between the movable hanging rod (2) and the fixed hanging rod (1). The upper cross bar (4) is bolted to the fixed hanging rod (1) and the movable hanging rod (2). One end of the upper cross bar (4) also extends to the side of the movable hanging rod (2) away from the fixed hanging rod (1). A vertical rod (5) is detachably connected to the end of the upper cross bar (4) and the cross arm (3) close to the movable hanging rod (2). The vertical rod (5) is pinned to the cross arm (3) and the upper cross bar (4). And according to the distance between the movable hanging bracket and the ground, a temporary support rod (8) is fabricated in advance. S3. Install the power distribution cabinet: Install the power distribution cabinet at the designed position and conduct acceptance. S4. Install the movable hanging brackets: Install a plurality of movable hanging brackets on the floor slab or the structural cross beam. The plurality of movable hanging brackets are evenly spaced along the cable route. S5. Cable laying: First, install the cables in the temporary placement area (7), and then install them into the cable tray (6). S6. Remove the upper cross bar (4) and the vertical rod (5): After the cable laying is completed, remove the upper cross bar (4) and the vertical rod (5) for use in the next row of movable hanging brackets. S7. Commissioning and power-on: After all the cables in the power distribution room are installed and crimped, conduct cable testing. After passing the test, power on. S8. Replace the movable hanging rod (2) and the cross arm (3): Use the temporary support rod (8) to support the cable tray (6), then replace the movable hanging rod (2) with the fixed hanging rod (1), remove the cross arm (3), and then install a formal cross arm (31) with a length equal to the distance between the two fixed hanging rods (1) between the two fixed hanging rods (1).

2. The rapid installation method of the cable in the distribution room according to claim 1, characterized in that: Before installing the switchgear and the power distribution cabinet, it is necessary to complete the laying of the extra-cabinet cables from the power distribution room to the distribution boxes on each floor, as well as the crimping of the cables with the power distribution cabinets on each floor.

3. The rapid installation method of cables in a distribution room according to claim 1, wherein: In step S1, pre-arrange the cables in the power distribution room: According to the distance of the cables entering the power distribution cabinet from the power distribution cabinet, the cables entering the power distribution room enter the first power distribution cabinet and are laid in the middle of the cable tray; for the cables entering the power distribution room that are getting farther away from the power distribution cabinet, they are arranged left and right with the cables entering the first power distribution cabinet. Clearly define the arrangement order and position of the cables in the cable tray (6), and issue a cross-sectional diagram of the cable laying in the cable tray (6) to clarify the laying positions and numbers of each cable; before the construction of the power distribution cabinet, temporarily lay the cables after entering the power distribution room on the temporary support (9) along the wall of the power distribution room. The positions and layers of the cables laid on the temporary support (9) should be consistent with those of the cables in the cable tray (6).

4. A rapid installation method for cables in a distribution room according to claim 1, characterized in that: In step S5, open the vertical rod (5), place the cable into the temporary placement area (7) surrounded by the vertical rod (5), the upper cross bar (4), the movable hanging rod (2) and the cross arm (3), then close the vertical rod (5), open the movable section (22), and then install the cable into the cable tray (6).

5. A rapid installation method for cables in a distribution room according to claim 3, characterized in that: In step S5, to reduce the bending of the cable and speed up the installation progress, the cable should preferably be moved horizontally from the temporary bracket to the movable hanging bracket.

6. An active hanging bracket structure for quickly installing cables, characterized in that: It includes a fixed hanging rod (1) vertically fixed on the structural roof or structural cross beam and a movable hanging rod (2). The movable hanging rod (2) includes a fixed section (21) and a movable section (22). One end of the fixed section (21) is fixedly connected to the structural roof or structural cross beam, and the other end is pin-connected to the movable section (22). A cross arm (3) is connected between the fixed hanging rod (1) and the movable hanging rod (2). One end of the cross arm (3) is bolt-connected to the fixed hanging rod (1), and the other end is pin-connected and detachably connected to the movable hanging rod (2). And the cross arm (3) extends to the side of the movable hanging rod (2) away from the fixed hanging rod (1). A upper cross bar (4) is also fixedly connected between the movable hanging rod (2) and the fixed hanging rod (1). The upper cross bar (4) is bolt-connected to the fixed hanging rod (1) and the movable hanging rod (2). One end of the upper cross bar (4) also extends to the side of the movable hanging rod (2) away from the fixed hanging rod (1). A vertical rod (5) is detachably connected to the end of the upper cross bar (4) and the cross arm (3) close to the movable hanging rod (2). The vertical rod (5) is pin-connected to the cross arm (3) and the upper cross bar (4).

7. The movable hanger structure for quickly installing a cable according to claim 6, wherein: After the cable laying is completed, the movable hanging rod (2) is removed and replaced with a fixed hanging rod (1). The fixed hanging rod (1) is bolt-connected to the cross arm (3).

8. The movable hanger structure for quickly installing a cable according to claim 6, characterized in that: After the cable laying is completed, the vertical rod (5) and the upper cross bar (4) are removed after a row of cables are laid, and are used for the laying of the next row of cables.

9. The movable hanger structure for quickly installing cables according to claim 6, characterized in that: The cross arm (3) is removed after the cable laying is completed, and a formal cross arm (31) is installed between the two fixed hanging rods (1). After the removed cross arm (3) is cut and processed for rust prevention, it is used as the formal cross arm (31) of the hanging bracket when laying the next row of cables.

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