Turnover type electrical element support and construction method thereof

Abstract

The embodiment of the invention provides a turnover type electrical element support and a construction method thereof, and relates to the field of port cranes. The problem that the installation position of electrical elements of the port crane is inconvenient to maintain is solved. The pre-welding device comprises a pre-welding piece support, a first support and a second support, and the pre-welding piece support is used for being fixed to an operation platform. The first support and the second support are rotationally connected and can be detachably fixed at the rotating joint. The end, away from the second support, of the first support is used for being rotatably installed on a pre-welding piece support, and the first support is used for being driven by manpower to rotate to a first angle position or a second angle position to be fixed. The construction method is implemented by adopting the bracket. Through the folding type structural design, electrical element sinking arrangement and rapid maintenance mode conversion is achieved, the requirement for high-altitude operation is reduced, and maintenance is easier and more convenient.

Description

Technical Field

[0001] The present invention relates to the field of port cranes, and in particular to a foldable electrical component bracket and a construction method thereof. Background Art

[0002] Port cranes are large-scale mechanical equipment specifically used for cargo loading and unloading at ports. These include quay cranes, which are bridge cranes located at the edge of container terminals and can move along shore-side tracks to align with ship cargo spaces for container loading and unloading. Tire-mounted cranes, which use tire-supported gantry cranes for container loading and unloading within container terminal yards, also handle container loading and unloading operations. Rail-mounted cranes, which use track-mounted gantry cranes for container loading and unloading operations within container terminal yards, also handle container loading and unloading operations within container terminal yards.

[0003] To meet functional requirements, some electrical components on port cranes are installed in locations that are inconvenient for maintenance. Alternatively, during the project renovation phase, added electrical equipment lacks a platform, making maintenance difficult. For example, key electrical components such as sensors and actuators must be installed in locations where they can accurately sense or directly drive the machinery. These locations are often cramped, surrounded by structures, or located at high or deep locations, making maintenance difficult. Cranes are compact, and after meeting the core mechanical layout and functions (performance, safety, environmental protection, and interference prevention), the ideal space and maintenance access for electrical equipment are limited. Ensuring functionality and safety are paramount during design, and ease of maintenance is often compromised, especially when engineers underestimate the difficulty of on-site maintenance. Summary of the Invention

[0004] The following is a brief summary of one or more aspects to provide a basic understanding of these aspects. This summary is not an exhaustive overview of all conceivable aspects and is neither intended to identify key or critical elements of all aspects nor to define the scope of any or all aspects. Its sole purpose is to present some concepts of one or more aspects in a simplified form as a prelude to the more detailed description that will be provided later.

[0005] The objectives of the present invention include, for example, providing a foldable electrical component bracket, which can improve the problem of inconvenient maintenance of the installation position of electrical components of port cranes.

[0006] The purpose of the present invention also includes providing a construction method for a foldable electrical component bracket, which can improve the problem of inconvenient maintenance of the installation position of electrical components of port cranes.

[0007] The embodiments of the present invention can be implemented as follows:

[0008] An embodiment of the present invention provides a foldable electrical component bracket for installation on a port crane operating platform. The foldable electrical component bracket includes a pre-welded bracket, a first bracket, and a second bracket. The pre-welded bracket is fixed to the operating platform. The first bracket and the second bracket are rotatably connected and can be detachably fixed at the rotational connection. An end of the first bracket remote from the second bracket is rotatably mounted on the pre-welded bracket. The first bracket is manually driven to rotate to a first angular position or a second angular position for fixation.

[0009] When the first bracket is in the first angular position, the rotational connection between the first bracket and the second bracket is fixed, and the end of the second bracket away from the first bracket can be detachably fixed to the component to be inspected at the inspection position; when the first bracket is in the second angular position, the second bracket can be rotated relative to the first bracket under human drive to rotate the component to be inspected fixed by the second bracket to the inspection position on the operating platform for inspection.

[0010] In addition, the foldable electrical component bracket provided by the embodiment of the present invention may also have the following additional technical features:

[0011] Optionally, the foldable electrical component bracket also includes a mounting member, a first positioning member and a second positioning member; the mounting member, the first positioning member and the second positioning member are fixed on the first bracket at intervals, the mounting member is provided with a rotation hole, and the mounting member is rotatably installed on the pre-welded part bracket through the rotation hole; the first positioning member is provided with a first positioning hole, and the first positioning hole is used to be fixed to the pre-welded part bracket when the first bracket is rotated to the first angle position; the second positioning member is provided with a second positioning hole, and the second positioning hole is used to be fixed to the pre-welded part bracket when the first bracket is rotated to the second angle position.

[0012] Optionally, the pre-welded part bracket is provided with a mounting hole, a first fixing hole and a second fixing hole, the mounting hole is used to be rotatably connected to the rotating hole, the first fixing hole is used to be detachably fixed to the first positioning hole, and the second fixing hole is used to be detachably fixed to the second positioning hole; the first fixing hole and the second fixing hole have the same height and are both higher than the height of the mounting hole, and the first fixing hole and the second fixing hole are away from the operating platform relative to the mounting hole; the mounting member is fixed between the first positioning member and the second positioning member, and the first positioning member is away from the second bracket relative to the mounting member.

[0013] Optionally, the first positioning member and the second positioning member are both C-shaped channel steel structures, the first bracket passes through the channel steel center plate of the first positioning member and the channel steel center plate of the second positioning member, the first positioning hole is opened on the channel steel side plate of the first positioning member, and the second positioning hole is opened on the channel steel side plate of the second positioning member.

[0014] Optionally, the pre-welded part bracket includes two groups of first channel steel, second channel steel, third channel steel and steel plate connected in sequence; the first channel steel and the third channel steel are arranged in parallel, the second channel steel is arranged at an angle and connects the first channel steel and the third channel steel, the two groups of the second channel steels are fixed by angle steel fixings, the two groups of the third channel steels respectively fix the steel plates, and the first fixing holes and the second fixing holes are opened on the two steel plates; the first bracket is rotatably installed between the two groups of the third channel steels.

[0015] Optionally, the foldable electrical component bracket further includes a fastener; the end of the first bracket is rotatably connected to the end of the second bracket and is detachably fixed by the fastener; when the fastener is removed, the first bracket and the second bracket can rotate relative to each other.

[0016] Optionally, the foldable electrical component bracket also includes a first connecting plate, a second connecting plate and a hinge; the end of the first bracket fixes the first connecting plate, the end of the second bracket fixes the second connecting plate, the edge of the first connecting plate and the edge of the second connecting plate are rotatably connected by the hinge, and the first connecting plate and the second connecting plate can be detachably fixed by the fastener when they are close to each other.

[0017] Optionally, the foldable electrical component bracket also includes a first handle and a second handle; the first handle is fixed to the end of the first bracket away from the second bracket, and the first handle is used for manually pressing to drive the first bracket to rotate relative to the pre-welded part bracket; the second handle is fixed to the second bracket, and the second handle is used for manually holding to drive the second bracket to rotate relative to the first bracket.

[0018] Optionally, the foldable electrical component bracket also includes a transition bracket; the transition bracket is fixed to the end of the second bracket away from the first bracket, the transition bracket is an angle steel structure, and the angle steel side plates of the transition bracket are respectively provided with electrical component holes, and the electrical component holes are used for assembly and fixation with the component to be inspected.

[0019] An embodiment of the present invention further provides a construction method for a foldable electrical component support, which is implemented using a foldable electrical component support. The construction method for the foldable electrical component support includes:

[0020] Welding and fixing the pre-welded component bracket to the operating platform;

[0021] Rotating and mounting the first bracket on the operating platform;

[0022] The first bracket is rotated to the first angle position and fixed, and the end of the second bracket away from the first bracket is detachably fixed to the component to be inspected at the inspection position;

[0023] The first bracket is rotated to the second angle position and fixed, the fixing of the rotation connection between the first bracket and the second bracket is removed, and the second bracket is driven to drive the component to be inspected to rotate upward relative to the first bracket to above the operating platform for inspection.

[0024] The beneficial effects of the foldable electrical component bracket and the construction method thereof according to the embodiment of the present invention include, for example:

[0025] A foldable electrical component bracket is used to be installed on the operating platform of a port crane. The foldable electrical component bracket includes a pre-welded component bracket, a first bracket and a second bracket. The pre-welded component bracket is used to be fixed on the operating platform. The first bracket and the second bracket are rotatably connected and can be detachably fixed at the rotating connection. The end of the first bracket away from the second bracket is used to be rotatably mounted on the pre-welded component bracket. The first bracket is used to be rotated to a first angular position or a second angular position for fixation under human drive. When the first bracket is in the first angular position, the rotating connection between the first bracket and the second bracket is fixed, and the end of the second bracket away from the first bracket can be detachably fixed to a position to be inspected. When the first bracket is in the second angular position, the second bracket can be rotated relative to the first bracket under human drive to rotate the component to be inspected fixed by the second bracket to the maintenance position on the operating platform for maintenance.

[0026] The folding bracket hinges the first and second brackets together to form a folding mechanism that switches between operating and maintenance modes. Pre-welded brackets provide a fixed base, and dual-angle positioning allows for mode switching. The folding structure allows for quick switching between installation and maintenance positions, reducing the risk of working at height. The articulated design simplifies single-person operation and improves maintenance efficiency. The detachable mounting system ensures operational stability and adapts to the vibration environment of port cranes, balancing safety and functionality.

[0027] The construction method of the foldable electrical component bracket adopts the above-mentioned foldable electrical component bracket to improve the problem of inconvenient maintenance of the installation position of the electrical components of the port crane. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The above features and advantages of the present invention will be better understood after reading the detailed description of the embodiments of the present disclosure in conjunction with the following drawings. In the drawings, the components are not necessarily drawn to scale, and components with similar related properties or characteristics may have the same or similar reference numerals.

[0029] Figure 1 A schematic diagram of a usage scenario of the foldable electrical component bracket provided by an embodiment of the present invention;

[0030] Figure 2 A front view of the first bracket and the second bracket of the foldable electrical component bracket provided by the embodiment of the present invention after being fixed and laid flat at the rotation connection;

[0031] Figure 3 A top view of the first bracket and the second bracket of the foldable electrical component bracket provided by an embodiment of the present invention after being fixed and laid flat at the rotation connection;

[0032] Figure 4 A front view of a center plate of a first positioning member in a foldable electrical component support provided by an embodiment of the present invention;

[0033] Figure 5 A front view of a pre-welded component bracket in a foldable electrical component bracket provided by an embodiment of the present invention;

[0034] Figure 6 A side view of a pre-welded component bracket in a foldable electrical component bracket provided by an embodiment of the present invention;

[0035] Figure 7 A schematic diagram showing a state in which the first bracket of the foldable electrical component bracket provided by an embodiment of the present invention is rotated to a first angular position;

[0036] Figure 8 A schematic diagram showing a state in which the first bracket of the foldable electrical component bracket provided by an embodiment of the present invention is rotated to a second angular position;

[0037] Figure 9 A schematic diagram of a state in which the second bracket of the foldable electrical component bracket provided by an embodiment of the present invention is rotated to a first angular position and the second bracket is rotated to an inspection position relative to the first bracket.

[0038] Icons: 10-operating platform; 20-foldable electrical component bracket; 100-pre-welded component bracket; 110-first channel steel; 120-second channel steel; 130-third channel steel; 140-steel plate; 101-mounting hole; 102-first fixing hole; 103-second fixing hole; 150-angle steel fixing piece; 200-first bracket; 210-second bracket; 220-first angular position; 230-second angular position; 300-mounting piece; 301-rotation hole; 310-first positioning piece; 311-first positioning hole; 320-second positioning piece; 321-second positioning hole; 400-first connecting plate; 410-second connecting plate; 420-hinge; 430-fastener; 500-first handle; 510-second handle; 600-transition bracket; 700-electrical component. DETAILED DESCRIPTION

[0039] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. Note that the various aspects described below with reference to the accompanying drawings and specific embodiments are merely exemplary and should not be construed as limiting the scope of protection of the present invention.

[0040] In the description of the present invention, it should be noted that if the terms "upper", "lower", "inner", "outer", "vertical" and the like appear, the orientation or position relationship indicated is based on the orientation or position relationship shown in the accompanying drawings, or is the orientation or position relationship in which the product of the invention is usually placed when in use, rather than indicating or implying that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0041] At the same time, it should be noted that the terms "first", "second", etc. are only used for distinguishing descriptions and cannot be understood as indicating or implying relative importance.

[0042] It should also be noted that, in the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood broadly. For example, they may refer to fixed connection, integral connection, or detachable connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0043] The following combination Figures 1 to 9 The foldable electrical component bracket 20 provided in this embodiment is described in detail.

[0044] Please refer to Figure 1 、 Figure 7 、 Figure 8 and Figure 9The embodiment of the present invention provides a foldable electrical component bracket 20 for installation on the port crane operating platform 10. The foldable electrical component bracket 20 includes a pre-welded bracket 100, a first bracket 200 and a second bracket 210. The pre-welded bracket 100 is used to be fixed on the operating platform 10; the first bracket 200 and the second bracket 210 are rotatably connected and can be detachably fixed at the rotating connection; the end of the first bracket 200 away from the second bracket 210 is used to be rotatably installed on the pre-welded bracket 100, and the first bracket 200 is used to rotate under human drive. The first bracket 200 is moved to the first angular position 220 or the second angular position 230 for fixation; when the first bracket 200 is in the first angular position 220, the rotation connection between the first bracket 200 and the second bracket 210 is fixed, and the end of the second bracket 210 away from the first bracket 200 can be detachably fixed to the component to be inspected at the inspection position; when the first bracket 200 is in the second angular position 230, the second bracket 210 can be rotated relative to the first bracket 200 under human drive, so as to rotate the component to be inspected fixed by the second bracket 210 to the inspection position on the operating platform 10 for inspection.

[0045] The pre-weld component support 100 serves as a fixed base, while the first support 200 achieves multi-angle positioning through a revolute joint. The second support 210 forms a lockable revolute joint with the first support 200. When the revolute joint is locked, the second support 210 extends outward along the end of the first support 200. When the revolute joint is unlocked, the second support 210 can rotate relative to the first support 200. When the first support 200 is at a first angle, the revolute joint is locked, and the second support 210 is fixed to the component under test, allowing the component to be retrieved. When the first support 200 is rotated to a second angle, the revolute joint is unlocked, and the second support 210 can rotate freely about its axis, rotating the component under test to the operator's position. In this embodiment, the rotation of the first support 200 relative to the pre-weld component support 100 is manually driven, and the drive of the second support 210 relative to the first support 200 is also manually driven.

[0046] Through the first bracket 200, the second bracket 210 can be driven to rotate to a high position or a low position. Whether the rotation joints of the first bracket 200 and the second bracket 210 are locked can also be adjusted according to the maintenance position of the construction personnel, thereby realizing the rapid switching of the components to be inspected between low-position fixation and high-position maintenance, or high-position fixation and low-position maintenance. Sunken electrical components or high-position electrical components can be arranged without the aid of climbing equipment. It has the characteristics of simple operation, safety and durability, and eliminates the risks of high-altitude operations; the double rotating pair design and folding state improve operational flexibility, and the locking mechanism ensures the stability of the working state; the human-driven mode simplifies the structural complexity and reduces manufacturing costs; the folding mechanism of the rotating joint can also reduce space occupancy and adapt to the compact layout requirements of port cranes.

[0047] Reference Figure 2 and Figure 3 In this embodiment, the first bracket 200 and the second bracket 210 are both steel pipe structures. The structure is simple and easy to produce and operate.

[0048] Reference Figure 2 、 Figure 3 、 Figure 7 and Figure 8 In this embodiment, the foldable electrical component bracket 20 further includes a mounting member 300, a first positioning member 310 and a second positioning member 320; the mounting member 300, the first positioning member 310 and the second positioning member 320 are fixed on the first bracket 200 at intervals, and the mounting member 300 is provided with a rotation hole 301, and the mounting member 300 is rotatably installed on the pre-weldment bracket 100 through the rotation hole 301; the first positioning member 310 is provided with a first positioning hole 311, and the first positioning hole 311 is used to be fixed to the pre-weldment bracket 100 when the first bracket 200 is rotated to the first angular position 220; the second positioning member 320 is provided with a second positioning hole 321, and the second positioning hole 321 is used to be fixed to the pre-weldment bracket 100 when the first bracket 200 is rotated to the second angular position 230.

[0049] The mounting member 300 rotatably connects the first bracket 200 to the pre-weld component bracket 100 through the rotation hole 301. The first positioning member 310 or the second positioning member 320 forms a rigid locking structure with the pre-weld component bracket 100 through the positioning hole. When the first bracket 200 is rotated to a first angle, the first positioning hole 311 aligns with the pre-weld component bracket 100 and is secured via a positioning pin. When the first bracket 200 is rotated to a second angle, the second positioning hole 321 performs the same function.

[0050] The dual positioning hole design realizes two-level angle locking, improving the accuracy of working state switching; the mechanical positioning structure replaces manual labor to maintain the angle, reducing operating fatigue; the hard connection between the positioning hole and the pre-welded bracket 100 ensures the structural rigidity of the bracket when bearing loads, avoiding positioning failure caused by vibration.

[0051] Reference Figure 5 、 Figure 6 、 Figure 7 and Figure 8 In this embodiment, the pre-weldment bracket 100 is provided with a mounting hole 101, a first fixing hole 102 and a second fixing hole 103. The mounting hole 101 is used to be rotatably connected to the rotating hole 301, the first fixing hole 102 is used to be detachably fixed to the first positioning hole 311, and the second fixing hole 103 is used to be detachably fixed to the second positioning hole 321; the heights of the first fixing hole 102 and the second fixing hole 103 are the same and both are higher than the height of the mounting hole 101, and the first fixing hole 102 and the second fixing hole 103 are away from the operating platform 10 relative to the mounting hole 101; the mounting member 300 is fixed between the first positioning member 310 and the second positioning member 320, and the first positioning member 310 is away from the second bracket 210 relative to the mounting member 300.

[0052] The pre-welded bracket 100 forms a rotational axis with the first bracket 200 through the mounting hole 101. The design of the first and second fixing holes 102, 103, which are higher than the mounting hole 101 and farther away from the operating platform 10, extends the locking lever arm and enhances vibration resistance. The detachable fixing method of the first and second fixing holes 102, 103 allows for rapid switching between operating modes, significantly reducing equipment maintenance preparation time.

[0053] The layout between the first positioning member 310 and the second positioning member at the mounting member 300 optimizes the force distribution, and the external design of the first positioning member 310 expands the rotation operation space; the first positioning member 310 and the second positioning member 320 are relatively located at the center diagonal position of the mounting member 300, which is convenient for the operator to intuitively observe the locking state and avoid misoperation; the spacing layout of the first positioning member 310 and the second positioning member 320 reduces friction loss during rotation and extends the life of the rotating mechanism.

[0054] Reference Figure 2 、 Figure 3 ,and Figure 4 In this embodiment, the first positioning member 310 and the second positioning member 320 are both C-shaped channel steel structures. The first bracket 200 passes through the channel steel center plate of the first positioning member 310 and the channel steel center plate of the second positioning member 320. The first positioning member 310 has a first positioning hole 311 on its side plate, and the second positioning member 320 has a second positioning hole 321 on its side plate.

[0055] Both the first and second brackets 200 and 210 are steel tubular structures, each with a central plate formed from a C-shaped channel steel through which the first and second locating members 310 and 320 are mounted. The locating holes on the two side plates of the C-shaped channel steel form a double locking channel. When the first bracket 200 rotates, the opening of the C-shaped channel steel changes direction, aligning the locating holes on the side plates with the fixing holes of the pre-welded bracket 100. The locating pins pass through the channel steel side plates to achieve a rigid connection.

[0056] The C-shaped channel steel structure improves the shear resistance of the positioning parts, and the side plate opening method enhances the fixing reliability; the through-fitting assembly reduces stress concentration at the connection and extends the service life of the first bracket 200; the change in the opening direction of the channel steel realizes automatic calibration of the locking hole position, simplifying the operation process; the positioning and locking of the double side plates of the channel steel form a redundant fixing mechanism, which effectively resists the alternating loads during the operation of the crane; the standardized channel steel components facilitate mass production and rapid replacement, reducing maintenance costs.

[0057] Reference Figure 5 and Figure 6 In this embodiment, the pre-welded component bracket 100 includes two sets of sequentially connected first channel steel 110, second channel steel 120, third channel steel 130, and steel plate 140. The first channel steel 110 and third channel steel 130 are arranged in parallel, and the second channel steel 120 is arranged at an angle and connects the first channel steel 110 and third channel steel 130. The two sets of second channel steel 120 are fixed together by angle steel fixings 150, and the two sets of third channel steel 130 are respectively fixed to the steel plates. The two steel plates 140 are provided with first fixing holes 102 and second fixing holes 103. The first bracket 200 is rotatably mounted between the two sets of third channel steel 130. Specifically, the third channel steel 130 has a mounting hole 101.

[0058] The pre-welded bracket 100 utilizes a frame structure consisting of three sections of channel steel and a steel plate 140. The first channel 110 and the third channel 130 are parallel, forming the primary load-bearing beam. The angled second channel 120 forms a triangular support truss. The steel plates 140 on either side of the third channel 130 serve as the fixing base. The first and second fixing holes 102, 103 are symmetrically located on the steel plates 140 on either side, creating dual locking points.

[0059] The channel steel combination design reduces weight while improving the load-bearing capacity compared to the single-plate structure; the 140 fixing surface of the double steel plate achieves torque balance, avoiding eccentric load deformation caused by unilateral fixation; the inclined channel steel can arrange the first bracket 200 outward relative to the operating platform 10, so that the second bracket 210 can contact the component to be inspected; the standardized channel steel components are convenient for rapid on-site assembly, and the symmetrical opening design on both sides is compatible with the needs of left-handed and right-handed operation, improving the adaptability of the equipment.

[0060] Reference Figure 5 and Figure 6Specifically, the number of first channel steels 110, second channel steels 120, and third channel steels 130 is two each. After one set of first channel steels 110, second channel steels 120, and third channel steels 130 is connected, it is connected to another set of first channel steels 110, second channel steels 120, and third channel steels 130 via angle steel fixings 150. Two steel plates 140 are respectively fixed parallel to the two third channel steels 130. The first bracket 200 is rotatably mounted between the two third channel steels 130. The first positioning member 310 or the second positioning member 320 is fixed between the two steel plates 140. The angle steel fixings 150 are angle steels, and the two second channel steels 120 are fixed at their ends. The angle steels are used to increase the rigidity of the pre-welded component bracket 100.

[0061] Reference Figure 2 and Figure 3 In this embodiment, the foldable electrical component bracket 20 also includes a fastener 430; the end of the first bracket 200 is rotatably connected to the end of the second bracket 210 and is detachably fixed by the fastener 430; when the fastener 430 is removed, the first bracket 200 and the second bracket 210 can rotate relative to each other.

[0062] The first bracket 200 and the second bracket 210 are rotatably connected via a revolute joint, with a fastener 430 (such as a bolt or quick-release clamp) serving as a removable locking device. When the fastener 430 is secured, the two brackets form a rigid connection. When removed, the revolute joint is unlocked, allowing the second bracket 210 to rotate freely about its axis.

[0063] Fastener 430 enables rapid switching of operating modes—ensuring stable operation of electrical components when secured and supporting multi-angle adjustment when unlocked; the rotary pair design enhances operational flexibility and adapts to different maintenance scenarios; mechanical locking replaces manual position maintenance, reducing operator fatigue; the detachable structure facilitates one-handed operation and shortens equipment adjustment time; and the rigid connection effectively resists crane vibration and avoids the risk of failure caused by component displacement.

[0064] Specifically, the fastener 430 is a bolt, and the rotational connection between the end of the first bracket 200 and the end of the second bracket 210 is fixed by a bolt, so relative rotation is not possible. When relative rotation is required, the first bracket 200 and the second bracket 210 are fixed by bolts.

[0065] Reference Figure 2 、 Figure 3 、 Figure 8 and Figure 9In this embodiment, the foldable electrical component bracket 20 also includes a first connecting plate 400, a second connecting plate 410 and a hinge 420; the end of the first bracket 200 is fixed to the first connecting plate 400, and the end of the second bracket 210 is fixed to the second connecting plate 410. The edge of the first connecting plate 400 and the edge of the second connecting plate 410 are rotatably connected by the hinge 420. When the first connecting plate 400 and the second connecting plate 410 are close to each other, they can be detachably fixed by fasteners 430.

[0066] The first connecting plate 400 and the second connecting plate 410 form a hinge structure through the hinge 420. The hinge 420 provides a precise rotation axis. The first connecting plate 400 and the second connecting plate 410 serve as reinforcing ribs to disperse rotational stress. The fastener 430 prevents deflection through surface contact locking.

[0067] The edge-fitting design of the connecting plate eliminates rotational wear and extends service life; the bolt quick locking mechanism shortens mode switching time; the surface contact fixing method has a higher load-bearing capacity than the line contact method, effectively resisting crane vibration; the modular connecting plate design facilitates local replacement, reducing maintenance costs, while ensuring that electrical components are stably suspended during maintenance.

[0068] Reference Figure 2 and Figure 3 In this embodiment, one side of the first connecting plate 400 is bent to form a first bent plate, and one side of the second connecting plate 410 is bent to form a second bent plate. The first bent plate and the second bent plate are respectively fixed to the two leaves of the hinge 420. During the angle adjustment of the hinge 420, the first bracket 200 and the second bracket 210 are driven to rotate angularly. When the first connecting plate 400 and the second connecting plate 410 are in contact, the first bent plate and the second bent plate are coplanar. In other embodiments, the first connecting plate 400 and the first bent plate are integrally formed using an angle steel structure, while the second connecting plate 410 and the second bent plate are also angle steel structures, simplifying the structure and manufacturing process.

[0069] In this embodiment, the foldable electrical component bracket 20 also includes a first handle 500 and a second handle 510; the first handle 500 is fixed to the end of the first bracket 200 away from the second bracket 210, and the first handle 500 is used to manually press and drive the first bracket 200 to rotate relative to the pre-welded part bracket 100; the second handle 510 is fixed on the second bracket 210, and the second handle 510 is used to manually hold and drive the second bracket 210 to rotate relative to the first bracket 200.

[0070] The first handle 500 acts as the force-applying end of the first bracket 200, amplifying the efficiency of human-powered driving through the principle of leverage. The second handle 510 serves as the rotational grip point of the second bracket 210, enabling precise single-handed angle adjustment. The dual handle design creates separate operating zones.

[0071] The ergonomic handle layout allows one person to complete the bracket flip and angle adjustment, improving operational efficiency; the lever force reduces the force required for rotation and reduces operator fatigue; the split control avoids accidental touch interference and ensures stable component positioning during maintenance.

[0072] Specifically, the first handle 500 and the second handle 510 are round steel structures. The first handle 500 is a quadrilateral, and the second handle 510 is U-shaped, with both ends respectively fixed to the second bracket 210 .

[0073] Reference Figure 1 In this embodiment, an anti-fall chain is also fixed to the operating platform 10. The anti-fall chain is used to connect to the second handle 510 when the second bracket 210 is rotated relative to the first bracket 200 to the maintenance position, so as to facilitate maintenance of electrical components. The anti-fall chain can also be an anti-fall wire rope.

[0074] Reference Figure 1 、 Figure 2 and Figure 3 In this embodiment, the foldable electrical component bracket 20 also includes a transition bracket 600; the transition bracket 600 is fixed to the end of the second bracket 210 away from the first bracket 200, and the transition bracket 600 is an angle steel structure. The angle steel side plates of the transition bracket 600 are respectively provided with electrical component holes, which are used to assemble and fix with the components to be inspected.

[0075] The transition bracket 600, an angle steel component, forms a multi-directional fixed interface through the electrical component holes on both side panels. Its L-shaped structure creates a three-dimensional support plane and forms a rigid connection node with the end of the second bracket 210. The angle steel transition bracket 600 improves the stability of electrical component installation. The double-side panel hole design accommodates components of different specifications, improving adaptability. The standardized angle steel components enable quick replacement and enhance maintenance efficiency.

[0076] Reference Figure 7 、 Figure 8 and Figure 9 The embodiment of the present invention further provides a construction method of a foldable electrical component support 20, which is implemented using the foldable electrical component support 20. The construction method of the foldable electrical component support 20 includes:

[0077] Step S1, welding and fixing the pre-welded component bracket 100 on the operating platform 10;

[0078] Step S1, rotatably mounting the first bracket 200 on the operating platform 10;

[0079] Step S1: rotate the first bracket 200 to a first angle position 220 and fix it, and detachably fix the end of the second bracket 210 away from the first bracket 200 to the component to be inspected at the inspection position;

[0080] In step S1, the first bracket 200 is rotated to the second angle position 230 and fixed, the fixing of the rotation connection between the first bracket 200 and the second bracket 210 is removed, and the second bracket 210 is driven to rotate the component to be inspected upward relative to the first bracket 200 to the operating platform 10 for inspection.

[0081] The pre-welded bracket 100 is welded to form a rigid base, while the first bracket 200 achieves two-position switching via a rotating axis. When the first angle is fixed, the second bracket 210 forms a low, stable mounting position for the component under inspection. When the second angle is unlocked, the second bracket 210 uses a rotating joint to bring the component to the platform for inspection. The welded base ensures vibration resistance, and the dual-angle design allows for quick switching between operation and inspection modes.

[0082] According to the foldable electrical component support 20 provided in this embodiment, the working principle of the foldable electrical component support 20 is as follows:

[0083] The first bracket 200 is a welded steel pipe with a first handle 500 welded near its upper end. The second bracket 210 is also a welded steel pipe with two L-shaped hems welded between the first and second brackets 200 and 210 to secure the hinge 420. A transition bracket 600 is fixed to the lower end of the second bracket 210 and can be customized based on component functional requirements. Suitable for all types of shore-to-shore container cranes, this system allows for placement of sunken electrical components without the need for aerial work equipment, offering ease of operation, safety, and durability.

[0084] The installation and operation steps are as follows: Weld the pre-welded bracket 100 on the structure where the electrical components need to be installed. The transition bracket 600 is fixed to the end of the second bracket 210, and an anti-fall wire rope is installed on the operating platform 10. The first bracket 200 is hinged to the pre-welded bracket 100 and fixed in position by a locating pin. When maintenance is required, the locating pin can be loosened, and the first bracket 200 can be pried by the first handle 500. When the maintenance position is reached, the locating pin is inserted to temporarily fix it; remove the fastener 430 bolt of the L-shaped folding piece of the first bracket 200 and the second bracket 210, pull the second handle 510 to flip it through the hinge 420 to reach the maintenance platform, and temporarily fix it with an anti-fall wire to facilitate maintenance of electrical equipment.

[0085] The foldable electrical component bracket 20 provided in this embodiment has at least the following advantages:

[0086] The foldable electrical component bracket 20 is composed of a pre-welded component bracket 100, a first bracket 200, a second bracket 210, a transition bracket 600 and a handle, and adopts a rotating connection and detachable fixing design to realize the sinking arrangement and rapid maintenance of electrical components.

[0087] The folding structure design allows for the downward placement of electrical components and quick maintenance mode transition, reducing the need for overhead work. The C-shaped channel steel locators and pre-welded channel steel bracket 100 create a high-rigidity, vibration-resistant base, effectively resisting crane vibration. The hinge 420-connecting plate rotation mechanism ensures precise rotation with zero clearance, reducing wear. The ergonomic dual-handle design enables single-person operation, reducing operator fatigue. The anti-fall wire rope and locating pins provide dual safety protection, reducing maintenance risks. The modular transition bracket 600 supports the adaptation of components of various specifications, improving adaptability. The overall solution significantly improves the safety and efficiency of quay crane electrical system maintenance.

[0088] The above description is only a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any changes or substitutions that can be easily conceived by any technician familiar with the technology in this field within the technical scope disclosed by the present invention should be covered by the scope of protection of the present invention.

Claims

1. A foldable electrical component bracket for installation on a port crane operating platform, characterized in that: The foldable electrical component support comprises: A pre-welded component bracket, the pre-welded component bracket being used to be fixed on the operating platform; a first bracket and a second bracket, wherein the first bracket and the second bracket are rotatably connected and can be detachably fixed at the rotational connection; an end of the first bracket away from the second bracket is used to be rotatably mounted on the pre-weldment bracket, and the first bracket is used to be rotated to a first angular position or a second angular position under human drive for fixation; When the first bracket is in the first angular position, the rotational connection between the first bracket and the second bracket is fixed, and the end of the second bracket away from the first bracket can be detachably fixed to the component to be inspected at the inspection position; when the first bracket is in the second angular position, the second bracket can be rotated relative to the first bracket under human drive to rotate the component to be inspected fixed by the second bracket to the inspection position on the operating platform for inspection.

2. The foldable electrical component bracket according to claim 1, characterized in that: The foldable electrical component bracket also includes a mounting member, a first positioning member and a second positioning member; the mounting member, the first positioning member and the second positioning member are fixed on the first bracket at intervals, the mounting member is provided with a rotation hole, and the mounting member is rotatably installed on the pre-weld part bracket through the rotation hole; the first positioning member is provided with a first positioning hole, and the first positioning hole is used to be fixed to the pre-weld part bracket when the first bracket is rotated to the first angle position; the second positioning member is provided with a second positioning hole, and the second positioning hole is used to be fixed to the pre-weld part bracket when the first bracket is rotated to the second angle position.

3. The foldable electrical component bracket according to claim 2, characterized in that: The pre-welded part bracket is provided with a mounting hole, a first fixing hole and a second fixing hole, the mounting hole is used to be rotatably connected to the rotating hole, the first fixing hole is used to be detachably fixed to the first positioning hole, and the second fixing hole is used to be detachably fixed to the second positioning hole; the first fixing hole and the second fixing hole have the same height and are both higher than the height of the mounting hole, and the first fixing hole and the second fixing hole are away from the operating platform relative to the mounting hole; the mounting member is fixed between the first positioning member and the second positioning member, and the first positioning member is away from the second bracket relative to the mounting member.

4. The foldable electrical component bracket according to claim 3, characterized in that: The first positioning member and the second positioning member are both C-shaped channel steel structures. The first bracket passes through the channel steel center plate of the first positioning member and the channel steel center plate of the second positioning member. The first positioning hole is opened on the channel steel side plate of the first positioning member, and the second positioning hole is opened on the channel steel side plate of the second positioning member.

5. The foldable electrical component bracket according to claim 3, characterized in that: The pre-welded part bracket includes two groups of first channel steel, second channel steel, third channel steel and steel plate connected in sequence; the first channel steel and the third channel steel are arranged in parallel, the second channel steel is arranged at an angle and connects the first channel steel and the third channel steel, the two groups of the second channel steels are fixed by angle steel fixing pieces, the two groups of the third channel steels respectively fix the steel plates, and the first fixing holes and the second fixing holes are opened on the two steel plates; the first bracket is rotatably installed between the two groups of the third channel steels.

6. The foldable electrical component bracket according to any one of claims 1 to 5, characterized in that: The foldable electrical component bracket also includes a fastener; the end of the first bracket is rotatably connected to the end of the second bracket and is detachably fixed by the fastener; when the fastener is removed, the first bracket and the second bracket can rotate relative to each other.

7. The foldable electrical component bracket according to claim 6, characterized in that: The foldable electrical component bracket also includes a first connecting plate, a second connecting plate and a hinge; the end of the first bracket fixes the first connecting plate, the end of the second bracket fixes the second connecting plate, the edge of the first connecting plate and the edge of the second connecting plate are rotatably connected by the hinge, and the first connecting plate and the second connecting plate can be detachably fixed by the fastener when they are close to each other.

8. The foldable electrical component bracket according to any one of claims 1 to 5, characterized in that: The foldable electrical component bracket also includes a first handle and a second handle; the first handle is fixed to the end of the first bracket away from the second bracket, and the first handle is used for manually pressing to drive the first bracket to rotate relative to the pre-weldment bracket; the second handle is fixed to the second bracket, and the second handle is used for manually holding to drive the second bracket to rotate relative to the first bracket.

9. The foldable electrical component bracket according to any one of claims 1 to 5, characterized in that: The foldable electrical component bracket also includes a transition bracket; the transition bracket is fixed to the end of the second bracket away from the first bracket, the transition bracket is an angle steel structure, and the angle steel side plates of the transition bracket are respectively provided with electrical component holes, and the electrical component holes are used for assembly and fixation with the components to be inspected.

10. A method for constructing a foldable electrical component support, implemented using the foldable electrical component support according to any one of claims 1 to 9, characterized in that: The construction method of the foldable electrical component bracket includes: Welding and fixing the pre-welded component bracket to the operating platform; Rotating and mounting the first bracket on the operating platform; The first bracket is rotated to the first angle position and fixed, and the end of the second bracket away from the first bracket is detachably fixed to the component to be inspected at the inspection position; The first bracket is rotated to the second angle position and fixed, the fixing of the rotation connection between the first bracket and the second bracket is removed, and the second bracket is driven to drive the component to be inspected to rotate upward relative to the first bracket to above the operating platform for inspection.

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