Special lifting platform

Abstract

The invention discloses a special lifting platform. The platform comprises a platform main body, a lifting mechanism, a lifting bracket, a lifting mechanism and a self-locking mechanism, and integrates equipment storage, transfer and on-site automatic erecting functions. The working process of the platform comprises the steps that the lifting mechanism jacks the whole platform so that a transport vehicle can drive in, and loading is completed; during transportation, the self-locking mechanism performs double locking on the equipment; after the equipment arrives at the site, the lifting mechanism drives the lifting bracket to stably rotate the equipment from the horizontal state to the vertical state, and ultimate rigid locking is achieved through the self-locking mechanism; and after the operation is finished, executing an opposite process to finish equipment recovery. By means of integrated and automatic design, traditional crane hoisting operation is replaced, the problems that the process is tedious, the safety risk is high, equipment is prone to damage, and field dependence is high are solved, and efficient, stable and intrinsic safety of heavy equipment transferring and erecting are achieved.

Description

Technical Field

[0001] This invention relates to the field of mechanical engineering, and more particularly to a special lifting platform. Background Technology

[0002] Currently, the on-site installation of large-scale testing equipment in power systems mainly relies on traditional lifting operations. This method requires using large cranes to lift the equipment from transport vehicles to the ground, then using a complex "lifting and turning" process to transform it from a horizontal transport state to a vertical working state before finally hoisting it into place. This process has significant drawbacks: fragmented operation links, reliance on heavy equipment and special construction methods, high coordination requirements, and long construction periods; the "airborne turning" of equipment poses significant safety risks such as wire rope detachment and loss of center of gravity; the crane's location has stringent site requirements, resulting in high rental and labor costs; and the hoisting process can easily cause surface damage and internal structural impact to the equipment, providing insufficient protection for precision equipment.

[0003] To address the aforementioned issues, existing improvement solutions, such as simple special-purpose lifting platforms or tilting trays, often have limited functionality, only solving localized problems during loading, unloading, or tilting, failing to achieve integrated operation across the entire process. These solutions generally lack multiple active safety designs, including reliable locking during transportation, accompanying protection during lifting, and ultimate rigid self-locking after positioning, resulting in significant deficiencies in efficiency, safety, and equipment user-friendliness. Therefore, there is an urgent need for a dedicated solution that integrates storage, transfer, and erection functions, with a built-in fully automated safety mechanism. Summary of the Invention

[0004] This invention, through its integrated and automated design, replaces traditional crane hoisting operations, solving problems such as cumbersome processes, high safety risks, equipment susceptibility to damage, and strong site dependence. It achieves efficient, stable, and inherently safe heavy equipment transfer and erection. To achieve the above objectives, the specific technical solution of this invention's special lifting platform is as follows: A special lifting platform includes a platform body and a lifting mechanism, wherein the platform body is connected to the lifting mechanism, and further includes a lifting bracket, which is rotatably connected to the platform body; It also includes testing equipment, which is connected to the platform body; It also includes a lifting mechanism, which is rotatably connected to the platform body; The lifting mechanism is connected to the lifting bracket; It also includes a self-locking mechanism, which is connected to the lifting bracket; The self-locking mechanism works in conjunction with the testing equipment; The platform body is equipped with a rotating mechanism, and the platform body and the lifting bracket are rotatably connected through the rotating mechanism; The lifting mechanism includes a first lifting component and a second lifting component; The lifting mechanism is a hydraulic device.

[0005] Furthermore, the platform body and the test equipment are rotatably connected via a rotating mechanism.

[0006] Furthermore, the first lifting component is connected to the platform body; The second lifting component is connected to the platform body.

[0007] Furthermore, one end of the lifting mechanism is rotatably connected to the platform body, and the other end is rotatably connected to the lifting bracket.

[0008] Furthermore, the self-locking mechanism includes a first locking component and a second locking component, which cooperate with each other.

[0009] Furthermore, the first locking assembly is connected to the lifting bracket; The first locking assembly includes a hydraulic clamp, which is used in conjunction with the testing equipment.

[0010] Furthermore, the second locking assembly includes a base and a second locking component; The base is connected to the second locking component; The base is connected to the platform body; The second locking component is used in conjunction with the testing equipment.

[0011] Furthermore, it also includes hydraulic outriggers, which are connected to the platform body.

[0012] Furthermore, the hydraulic outrigger is a hydraulic device.

[0013] Furthermore, the hydraulic clamp has a protective pad inside.

[0014] Compared with existing technologies, the advantages of this invention are as follows: This invention's special lifting platform is used for storing and transporting power testing equipment, which needs to be reliably fixed on the platform. When the testing equipment on the platform needs to be transported, the lifting mechanism operates. During loading: the platform automatically rises 1.5 meters under the action of the lifting mechanism, ensuring the transport vehicle can enter the bottom of the platform, and the width between the lifting mechanisms is greater than 2.6 meters. Then, the platform lowers into the truck bed, the lifting mechanism retracts, and the bottom surface of the platform fully contacts the truck bed, the lifting mechanism is lifted, and at this time, the lifting mechanism is completely retracted within the total width of the platform. During unloading: the platform can be unloaded safely in the reverse manner described during loading. When the testing equipment on the platform needs to be used, the lifting mechanism operates, enabling the lifting bracket to automatically and smoothly lift the testing equipment from 0 to 90 degrees. After the testing equipment is raised, the lifting bracket stably returns to the base frame. Hydraulic outriggers extend to the left, right, and rear ends to contact the ground, preventing rotation and tilting. The lifting bracket uses hydraulic clamps to protect the equipment; the hydraulic clamps are covered with protective pads to effectively protect the equipment body. The platform's lifting mechanism can be adjusted independently and operates simultaneously. The bottom of the lifting bracket is hydraulically fixed to the testing equipment base. When the main unit is raised, the hydraulic device activates, locking and securing the base. After the main unit is upright, the upper limit switch is triggered, releasing power and self-locking to prevent rotation. A second locking component locks the main unit at its upright position. After the base is fixed, the hydraulic fixing seat of the lifting bracket activates, the hydraulic fixing pin in the lifting mechanism retracts, and the bracket falls back to a flat position. When the equipment is lowered, the lower limit switch is triggered, releasing power, and the system falls to contact the support frame, whereupon the device locks. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the test equipment of the present invention being raised; Figure 2 This is a schematic diagram of the experimental equipment of the present invention laid flat; Figure 3 This is a top view of the overall structure of the present invention.

[0016] Figure descriptions: 1. Platform body; 2. Lifting mechanism; 3. Lifting bracket; 4. Test equipment; 5. Lifting mechanism; 6. Self-locking mechanism; 7. Hydraulic outriggers; 11. Rotation mechanism; 21. First lifting assembly; 22. Second lifting assembly; 61. First locking assembly; 62. Second locking assembly; 611. Hydraulic clamp; 621. Base; 622. Second locking component. Detailed Implementation

[0017] To better understand the purpose, structure, and function of this invention, a special lifting platform of this invention will be described in further detail below with reference to the accompanying drawings.

[0018] Example 1: like Figures 1 to 3As shown, this embodiment provides a special lifting platform, including a platform body 1 and a lifting mechanism 2, the platform body 1 and the lifting mechanism 2 being connected. The platform body 1 further includes a lifting bracket 3, which is rotatably connected to the platform body 1; it also includes a testing device 4, which is connected to the platform body 1; a lifting mechanism 5, which is rotatably connected to the platform body 1 and connected to the lifting bracket 3; and a self-locking mechanism 6, which is connected to the lifting bracket 3 and cooperates with the testing device 4. The platform body 1 is provided with a rotating mechanism 11, and the platform body 1 and the lifting bracket 3 are rotatably connected via the rotating mechanism 11. The lifting mechanism 2 includes a first lifting component 21 and a second lifting component 22; the lifting mechanism 5 is a hydraulic device. This embodiment describes a special lifting platform specifically designed for the storage, transportation, and on-site erection of heavy-duty power testing equipment. The platform mainly consists of a robust welded platform body 1, serving as the base of the entire device. The platform body 1 integrates lifting mechanisms 2 at its front and rear for lifting the platform as a whole during equipment loading and unloading. A large lifting bracket 3 is located in the upper middle part of the platform body 1. This lifting bracket 3 is rotatably connected to the platform body 1 via a hinge shaft at its lower rear end, allowing it to rotate relative to the platform body 1 within a range of 0° (horizontal) to 90° (vertical). The heavy-duty testing equipment 4 to be transported and used is fixed horizontally on this lifting bracket 3 via its own base. An independent lifting mechanism 5 is hinged at its lower end to the platform body 1, and its upper piston rod is hinged to the middle of the lifting bracket 3, providing power for the rotation and lifting of the lifting bracket 3 and the testing equipment 4. To ensure the absolute safety of the testing equipment 4 during erection and after reaching a vertical position, a self-locking mechanism 6 is installed. The self-locking mechanism 6 is partially installed on the lifting bracket 3 and partially integrated with the platform body 1. It interacts with specific structures (such as flanges, protrusions, or specially designed lock holes) of the testing equipment 4 at key locations during the lifting process to achieve automatic locking. This embodiment of the special lifting platform integrates storage, transportation, and erection functions. Its core innovation lies in the synergistic effect of the platform body 1, lifting mechanism 2, lifting bracket 3, lifting mechanism 5, and self-locking mechanism 6, achieving fully mechanized and automated operation of the heavy testing equipment 4 from a horizontal storage state to a vertical working state. The lifting mechanism 2 solves the problem of "loading / unloading the equipment onto / from transport vehicles," the lifting mechanism 5 and lifting bracket 3 solve the problem of "erecting the equipment on-site," while the self-locking mechanism 6 provides crucial safety locking throughout the entire process.This completely changes the high-risk, low-efficiency mode of traditional operations that relies on the coordination of multiple large cranes, wire rope binding, and manual positioning. It standardizes the operation process, greatly improves safety, and significantly reduces the dependence on large hoisting equipment and complex sites. It is particularly suitable for use in substations, field tests, and other working conditions with limited space or complex conditions.

[0019] In this embodiment, a high-performance rotating mechanism 11 is specially designed on the platform body 1. The core of this rotating mechanism 11 consists of two sets of large, heavy-duty slewing bearings. The seat ring of the first set of slewing bearings is fixed to a specific reinforced position on the platform body 1 by high-strength bolts, and its shaft ring is fixedly connected to the corresponding structure at the rear end of the lifting bracket 3. This enables smooth, low-friction rotation of the lifting bracket 3 relative to the platform body 1 and allows it to withstand the enormous overturning moment generated when the equipment is erected. The second set of slewing bearings is integrated into a specific area of ​​the platform body 1. The base of the test equipment 4 is not directly and rigidly bolted to the platform body 1 or the lifting bracket 3, but is connected to the base of the test equipment 4 through the shaft ring of this bearing, while the seat ring is connected to the platform body 1. This allows the test equipment 4 to achieve slight rotation even in horizontal transport, thus offsetting the stress caused by the torsion of the vehicle body during transportation. By setting up a dedicated rotating mechanism 11, standardization of connection points and performance optimization are achieved. The slewing bearing used to connect the lifting bracket 3 provides an extremely stable and precise axis of rotation, ensuring the stability of the trajectory of the tens-of-tons-heavy equipment during lifting, without swaying or deviation, greatly improving the smoothness and safety of the lifting process. The rotating mechanism 11 used to connect the test equipment 4 innovatively provides a "stress relief" interface for the equipment during transportation, allowing the equipment to adaptively fine-tune within a limited range according to the vehicle's posture. This avoids the direct transfer of stress to the expensive test equipment 4 body due to frame torsion, effectively protecting the equipment's internal precision structure and extending its service life. This dual-rotation design optimizes both the lifting function and the transportation protection function.

[0020] In this embodiment, the lifting mechanism 2 specifically consists of two sets of identical lifting components, defined as the first lifting component 21 and the second lifting component 22. The first lifting component 21 is located below the end of the platform body 1 near the front of the vehicle, and the second lifting component 22 is located below the other end of the platform body 1 near the rear of the vehicle. Each lifting component includes a welded box-shaped support leg and a large-tonnage screw jack or hydraulic cylinder integrated therein. When loading and unloading are required, the drive mechanisms in the first lifting component 21 and the second lifting component 22 operate synchronously, pushing the support leg downwards until the entire platform body 1, along with the equipment on it, is smoothly lifted off the ground or the cargo box floor of the vehicle. The lifting height can be precisely controlled to be more than 1.5 meters. The lateral clearance between the two lifting components is designed to be greater than 2.6 meters, ensuring that the cargo box of the transport truck can be unobstructedly lowered under the platform body 1. The lifting mechanism 2 is divided into two groups: a first lifting component 21 and a second lifting component 22, which are respectively arranged at the front and rear ends of the platform body 1. This design ensures a uniform distribution of lifting force, more reasonable stress on the platform body 1, and avoids overall deformation. More importantly, the two groups of components can be synchronized to achieve horizontal lifting and lowering of the platform body 1, or they can be independently fine-tuned. In actual operation, if the ground or platform is uneven, the levelness of the platform body 1 can be finely adjusted by controlling the extension of the two groups of components, ensuring that the equipment is always in a stable horizontal state. This is crucial for protecting the equipment and subsequent locking operations. The group design also facilitates modular manufacturing and maintenance.

[0021] In this embodiment, the lifting mechanism 5 that drives the lifting bracket 3 to rotate specifically adopts a high-thrust single-acting or double-acting hydraulic cylinder. The bottom of the cylinder of the lifting mechanism 5 is connected to the reinforcing structure at the rear of the platform body 1 through a heavy-duty hinge support, and the top of the piston rod of the lifting mechanism 5 is connected to the lower part of the lifting bracket 3 through another hinge support. The axis of the lifting mechanism 5 is installed at a certain angle to the horizontal plane. When the hydraulic system supplies oil to the rodless chamber of the cylinder, the piston rod extends, pushing the lifting bracket 3 to rotate upward around its hinge point with the platform body 1; when it is necessary to lower the equipment, the system controls the oil to enter the rod chamber (or relies on the weight of the equipment to self-reset), the piston rod retracts, and the lifting bracket 3 falls smoothly back down. Using a hydraulic device as the power source of the lifting mechanism 5 has significant advantages such as large output force, smooth movement, easy control of speed and position, and compact structure. The hydraulic system can provide extremely smooth and shock-free power when lifting heavy loads, avoiding shaking of the equipment due to sudden start or stop. Through precise control of the hydraulic valve assembly, the lifting bracket 3 can easily achieve "slow-fast-slow" speed-changing motion. That is, it runs at low speed during start-up and near the end to ensure smooth operation, and runs at high speed in the middle stroke to improve efficiency. In addition, the hydraulic system has a natural self-locking pressure-holding characteristic, and the hydraulic cylinder can be locked by cutting off the oil circuit at any intermediate position, providing additional safety redundancy.

[0022] In this embodiment, the self-locking mechanism 6 is a multi-level, multi-point integrated locking system, mainly composed of a first locking component 61 and a second locking component 62 working together. The first locking component 61 is mainly responsible for providing continuous and flexible constraint and protection during the dynamic process of equipment lifting and lowering. Its actuators (such as hydraulic clamps) are installed on the lifting bracket 3 and move with the equipment. The second locking component 62 is mainly responsible for providing final and rigid mechanical locking after the equipment reaches and stabilizes in the vertical working position. Its actuators (such as pins and locking plates) are installed on the platform body 1. The two components are linked through the control system. The first locking component 61 is released after the equipment is erected and positioned, and then the second locking component 62 immediately acts to complete the final locking, realizing a seamless connection between dynamic process protection and static final locking. Dividing the self-locking mechanism 6 into a first locking component 61 and a second locking component 62 with different functional focuses realizes phased and refined control of the locking function. The first locking component 61 works during the lifting and lowering process, like a "bodyguard", continuously preventing the equipment from accidentally sliding or having a hard collision with the bracket. The second locking assembly 62 operates after the equipment is in place, acting like a "final latch" to provide the highest level of rigid fixation, ensuring absolute stability of the equipment during subsequent testing or long-term static placement. This design resolves the contradiction between the dual requirements of dynamic process protection and static final locking that a single locking mechanism cannot simultaneously meet, constructing a dual safety line of "process accident prevention + end-point tipping prevention," greatly enhancing the safety of the entire operation process.

[0023] In this embodiment, the main structure of the first locking assembly 61 is rigidly mounted on the sides of both sides of the lifting bracket 3. Its core actuating component is a hydraulic clamp 611, which consists of two high-strength steel semi-circular clamps with protective pads inside. One end of each semi-clamp is connected by a hinge, and the other end is hinged to both ends of a hydraulic cylinder. When the equipment is placed on the lifting bracket 3, the control system drives the hydraulic cylinder to contract, causing the two semi-clamps to close and encircle a specially designed, sufficiently strong cylindrical neck or flange on the upper part of the test equipment 4 from both sides. Throughout the entire process of erecting or lowering the equipment, the hydraulic clamp 611 maintains an appropriate clamping force, preventing the equipment from moving relative to the bracket and avoiding scratches on the equipment surface through the inner protective pads. Using the hydraulically driven hydraulic clamp 611 as the actuating component of the first locking assembly 61 achieves active and adaptive locking of the equipment. Compared to traditional bolt fixing or passive clamping, the hydraulic clamp 611 offers adjustable and controllable clamping force, automatically adapting to minute tolerances in equipment structural dimensions. Its "encircling" locking method provides uniform radial constraint force, ensuring reliable locking and reasonable force distribution, preventing localized stress concentration on the equipment. Hydraulic drive enables rapid and labor-saving locking and releasing actions, facilitating automated control. This design is particularly suitable for scenarios requiring continuous constraint during operation, and is crucial for ensuring the safe and slip-free operation of equipment weighing tens of tons when tilted.

[0024] In this embodiment, the second locking assembly 62 serves as a vertical locking device. Its structure includes a heavy-duty steel plate base 621 welded and fixed to the front end of the platform body 1, and a second locking component 622 mounted on the base 621. Specifically, the second locking component 622 can be a heavy-duty pin driven by hydraulics or a motor, or a hydraulically driven swing-type chuck. When the test equipment 4, pushed by the lifting mechanism 5, rotates with the lifting bracket 3 to a fully vertical position (90°), a pre-machined, high-strength locking hole or locking groove on the equipment base moves precisely to a position aligned with the second locking component 622. At this time, the control system issues a command, and the second locking component 622, under the action of the driving device, quickly extends and precisely inserts into the locking hole of the equipment; or the swing-type chuck rotates into place and locks the locking boss of the equipment. Thus, the entire weight and possible swaying load of the test equipment 4 are directly transferred to the platform body 1 through its base and the second locking component 622, and the lifting bracket 3 and the lifting mechanism 5 no longer bear the main load. The second locking assembly 62 establishes a direct, rigid mechanical connection between the test equipment 4 and the platform body 1, providing the ultimate guarantee for system safety. Compared to friction locking or hydraulic locking, this pin / claw type mechanical locking is physically and visually locked, and will not fail due to system depressurization, power outages, or other malfunctions unless actively unlocked, exhibiting extremely high reliability. The base 621 is fixed to the platform body 1, providing an extremely stable support foundation. This design shifts the task of maintaining the equipment in its upright position from the continuously energy-consuming hydraulic cylinder of the lifting mechanism 5 to the energy-free mechanical locking mechanism, ensuring both safety and energy efficiency. Simultaneously, this frees up the lifting mechanism 5, allowing it to be unloaded and retracted after the equipment is in place, thus enabling the lifting bracket 3 to be laid flat for other operations.

[0025] In this embodiment, to provide extremely stable support for the entire platform during equipment erection and subsequent testing, preventing overturning, a set of hydraulic outriggers 7 is installed below the test equipment 4. The hydraulic outriggers 7 include a robust box-shaped outrigger sleeve and an outrigger column that can extend and retract within it. When the platform is transported, the outrigger column is fully retracted, not exceeding the outline of the platform body 1. When the platform arrives at the work site, before the equipment erection operation, the operator first controls the hydraulic outriggers 7 to extend downwards synchronously or separately until their lower support feet firmly press against the ground. By adjusting the extension length of the hydraulic outriggers 7 individually, the entire platform body 1 can be precisely leveled, ensuring operational safety even on sloped ground. The addition of the hydraulic outriggers 7 greatly expands the adaptability and operational safety of this special lifting platform. Firstly, by forming a large rectangular support surface, it significantly lowers the center of gravity of the entire platform during equipment erection, greatly increasing anti-overturning stability and eliminating the risk of overturning when operating on soft, uneven ground. Secondly, the independently adjustable outriggers enable rapid automatic leveling, ensuring that the platform body 1 and the testing equipment 4 are always in an ideal horizontal reference state, which is crucial for the subsequent use of certain precision testing equipment. Finally, the hydraulic outriggers 7 directly transfer the weight of the equipment and the working load to the ground, avoiding long-term pressure on the suspension system or tires of the transport vehicle, protecting the vehicle, and allowing the work platform and transport vehicle to be relatively independent.

[0026] In this embodiment, the power source and drive device of the aforementioned hydraulic outriggers 7 are both hydraulic systems. Specifically, each hydraulic outrigger 7 integrates a double-acting hydraulic cylinder, with the cylinder body fixed inside the outrigger sleeve and the end of the piston rod connected to the outrigger column. The hydraulic cylinders of the four hydraulic outriggers 7 are connected to the central hydraulic pump station of the platform body 1 through pipelines and valve groups. The control system can command all hydraulic outriggers 7 to raise and lower synchronously, or it can independently extend, retract, and hold pressure on individual hydraulic outriggers 7. Due to the use of hydraulic drive, the output support force of the hydraulic outriggers 7 is enormous; a single hydraulic outrigger 7 can provide tens of tons of support force, and the extension speed is stable and controllable. Using a hydraulic device as the drive method for the hydraulic outriggers 7 brings multiple advantages. First, it has great power, easily lifting fully loaded platforms and equipment, and providing solid support under complex ground conditions. Second, it offers precise control; the extension and retraction speed and final position of the hydraulic outriggers 7 can be precisely controlled through hydraulic valves, achieving smooth ground contact and fine leveling. Third, it has a self-locking capability. When the hydraulic outrigger 7 extends to its position, closing the hydraulic locking valve will firmly lock the outrigger position without continuous energy consumption, ensuring safety and reliability. Fourth, it has a compact structure. The hydraulic cylinder can be built into the outrigger sleeve, without occupying extra space, making the overall structure simpler. The hydraulic outrigger 7 can share a power source with other hydraulic systems on the platform (such as the lifting mechanism 5 and the raising mechanism 2), improving system integration.

[0027] In this embodiment, the hydraulic clamp 611 in the first locking assembly 61, with its inner side directly contacting the surface of the test equipment 4, is lined with a specially designed protective pad. This protective pad is made of high-performance engineering materials, such as polyurethane elastomers with high wear resistance, high coefficient of friction, and oil resistance, or is composed of multi-layer composite materials (e.g., an inner soft rubber buffer layer and an outer high-friction, scratch-resistant fiber reinforcement layer). The protective pad is firmly attached to the inner arc surface of the steel hydraulic clamp 611 body via embedded slots or high-strength adhesive, completely covering the contact area with the equipment. The placement of a dedicated protective pad inside the hydraulic clamp 611 is a crucial design detail with significant benefits. First, it provides cushioning protection: the elastic material effectively absorbs minor vibrations and impacts that may occur during the lifting and lowering process, preventing the hard metal hydraulic clamp 611 from making hard-on-hard contact with the expensive test equipment 4 housing, thus preventing scratches on the equipment surface paint, dents in the housing, or damage to precision components. Secondly, increased friction: The high coefficient of friction of the protective pad surface provides greater static friction under the same clamping force, thus appropriately reducing the clamping hydraulic pressure required for the hydraulic clamp 611, saving energy and reducing structural load, while also making locking more reliable. Finally, adaptability and protection: The protective pad material has a certain degree of flexibility and adaptability, allowing it to better conform to the irregular contours of the equipment surface, increasing the effective contact area, and providing additional protective functions such as anti-slip, anti-static, and insulation, comprehensively protecting the integrity of the test equipment 4.

[0028] The working principle and operation process of this embodiment The complete work cycle of this special lifting platform begins with loading the equipment onto the vehicle, undergoes transportation, arrives at the site, and is then erected and positioned. Finally, it is reset and unloaded after the operation is completed. Its core working principle lies in the docking and separation of the platform body and the transport vehicle via the lifting mechanism 2, the angle change of the equipment via the lifting mechanism 5 driving the lifting bracket 3, and the phased, multi-layered safety assurance provided by the self-locking mechanism 6 and hydraulic outriggers 7 throughout the entire process. The following is a detailed and coherent description of the system's operation from loading to unloading.

[0029] Phase 1: Preparation and Loading – Loading the platform and equipment onto the transport vehicle The platform is initially positioned on the ground, with the lifting bracket 3 in a horizontal position. The test equipment 4 is horizontally fixed on it and locked by the first locking assembly 61 and the second locking assembly 62 to handle transportation conditions. At the start of the operation, the hydraulic outriggers 7 extend, ensuring the platform body 1 is firmly supported on the ground and precisely leveled, providing a solid reference for subsequent heavy-load operations. Then, the lifting mechanism 2 is activated, with its first lifting assembly 21 and second lifting assembly 22 working synchronously to smoothly lift the entire platform body 1 approximately 1.5 meters, creating a passage with a sufficient clearance width > 2.6 meters underneath. The transport vehicle reverses, allowing its cargo flatbed to fully enter the bottom of the platform. Afterward, the lifting mechanism 2 reverses, driving the platform body 1 to slowly descend until its bottom surface is completely flush with the vehicle's cargo box. The lifting mechanism 2 continues to retract until its structure does not exceed the platform's outline. Finally, the platform and vehicle cargo box are mechanically secured, the hydraulic outriggers 7 retract, and the platform enters transportation mode.

[0030] Phase Two: Transportation Process – Equipment Stability and Protection During Transit During transport, the platform is secured to the vehicle as a whole. At this time, the test equipment 4 is doubly locked by the self-locking mechanism 6: the hydraulic clamp 611 of the first locking component 61 provides continuous flexible restraint, and its internal protective pad effectively buffers the impact of road bumps; the second locking component 62 provides rigid final mechanical locking, constituting redundant safety. Simultaneously, the rotation mechanism 11 connecting the test equipment 4 to the platform body 1 allows the equipment to rotate at a small angle, thereby releasing the stress transmitted by the torsional deformation of the frame and protecting the equipment's structural integrity from damage.

[0031] Phase 3: Equipment Erection and Placement – ​​Achieving Automated and Safe Erection on-site After the vehicle arrives at the work site, the platform and vehicle are first released from their anchors. The lifting operation is repeated to allow the vehicle to move away, and then the hydraulic outriggers 7 are lowered to provide stable support and level the platform. The erection process begins: First, the hydraulic cylinder piston rod of the lifting mechanism 5 extends, pushing the lifting bracket 3 to rotate around its hinge point, thus slowly lifting the test equipment 4 from a horizontal position. Throughout this rotation and lifting process, the hydraulic clamp 611 of the first locking assembly 61 remains in working condition as a "dynamic lock," preventing any slippage of the equipment. When the equipment approaches a vertical position, the lifting mechanism 5 automatically decelerates and precisely positions itself at 90 degrees. At the moment the equipment is in place, its base locking hole aligns with the second locking component 622 of the second locking assembly 62, and the system automatically triggers this component to extend like a hydraulic pin, completing the rigid final locking of the equipment and the platform body 1. Subsequently, the hydraulic clamp 611 of the first locking assembly 61 releases, the lifting mechanism 5 unloads, and drives the lifting bracket 3 back to a horizontal position. At this point, the equipment is independently and stably erected in the work position and can proceed with subsequent operations.

[0032] Phase 4: Equipment Reset and Unloading – Reverse Process to Complete Recovery After the equipment is used, the reset process is initiated. The lifting mechanism 5 drives the lifting bracket 3 to rise and fit against the back of the equipment, and the hydraulic clamp 611 of the first locking assembly 61 closes and clamps the equipment. The final lock of the second locking assembly 62 is released. Subsequently, under the protection of the hydraulic clamp 611, the lifting mechanism 5 controls the piston rod to retract in a controlled manner, smoothly and slowly lowering the equipment to a horizontal position. After the equipment is placed horizontally, the second locking assembly 62 immediately actuates, relocking the equipment base in preparation for transportation. Finally, the reverse process of the loading procedure is repeated: the vehicle drives under the platform, the platform is lowered onto the vehicle and secured, or the lifting mechanism 2 lifts the platform, the vehicle drives away, and the platform is lowered to the ground, completing the entire work cycle.

[0033] Although the present invention has been described in detail above with reference to preferred embodiments, those skilled in the art will understand that various modifications and substitutions can be made to these embodiments without departing from the principles and spirit of the invention. For example, the type of hinge, the specific form of the locking device, and the selection of materials can all be adjusted according to actual needs. Therefore, the scope of protection of the present invention should be defined by the content of the appended claims.

Claims

1. A special lifting platform, comprising a platform body (1) and a lifting mechanism (2), wherein the platform body (1) and the lifting mechanism (2) are connected, characterized in that, It also includes a lifting bracket (3), which is rotatably connected to the platform body (1); It also includes a test device (4), which is connected to the platform body (1); It also includes a lifting mechanism (5), which is rotatably connected to the platform body (1); The lifting mechanism (5) is connected to the lifting bracket (3); It also includes a self-locking mechanism (6), which is connected to the lifting bracket (3); The self-locking mechanism (6) cooperates with the test equipment (4); The platform body (1) is provided with a rotating mechanism (11), and the platform body (1) and the lifting bracket (3) are rotatably connected through the rotating mechanism (11); The lifting mechanism (2) includes a first lifting component (21) and a second lifting component (22); The lifting mechanism (5) is a hydraulic device.

2. The special lifting platform according to claim 1, characterized in that: The platform body (1) and the test equipment (4) are rotatably connected by a rotating mechanism (11).

3. The special lifting platform according to claim 1, characterized in that: The first lifting component (21) is connected to the platform body (1); The second lifting component (22) is connected to the platform body (1).

4. The special lifting platform according to claim 1, characterized in that: The lifting mechanism (5) is rotatably connected at one end to the platform body (1) and rotatably connected at the other end to the lifting bracket (3).

5. The special lifting platform according to claim 1, characterized in that: The self-locking mechanism (6) includes a first locking component (61) and a second locking component (62), which cooperate with each other.

6. The special lifting platform according to claim 5, characterized in that: The first locking assembly (61) is connected to the lifting bracket (3); The first locking assembly (61) includes a hydraulic clamp (611), which is used in conjunction with the test equipment (4).

7. The special lifting platform according to claim 5, characterized in that: The second locking assembly (62) includes a base (621) and a second locking component (622); The base (621) is connected to the second locking component (622); The base (621) is connected to the platform body (1); The second locking component (622) is used in conjunction with the test equipment (4).

8. The special lifting platform according to claim 1, characterized in that: It also includes hydraulic outriggers (7), which are connected to the platform body (1).

9. The special lifting platform according to claim 8, characterized in that: The hydraulic outrigger (7) is a hydraulic device.

10. The special lifting platform according to claim 1, characterized in that: The hydraulic clamp (611) has a protective pad inside.

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