Indoor limited space GIS assembly combined transfer equipment and transfer method thereof

Abstract

The application discloses an indoor limited space GIS assembly combined transfer equipment and a transfer method thereof, and relates to the technical field of transfer tools. In view of the technical problems that the existing variable chassis transfer equipment is independent in the control of the chassis unfolding and jacking actions in the lifting process, is easy to overturn due to synchronization failure, and the split connecting piece is easy to fall off in the non-stress state, the main body is formed by the insertion and assembly of the bearing beam and the upper frame, and the bearing rod is used for connecting the rack main body; the driving mechanism and the balancing mechanism containing the hydraulic cylinder are arranged in the interior. The mechanical stroke of the relative movement of the lower frame driven by the hydraulic cylinder is used, the inclined chute and the guide rod are matched, and the rotating arm of the balancing mechanism is forced to unfold outward. The application realizes the mechanical strict correlation between the lifting height and the supporting chassis width, ensures the lateral support in the high gravity center state without an additional control loop, and guarantees the connection reliability in the whole process by matching the magnetic attraction and the V-shaped groove structure.

Description

Technical Field

[0001] This invention relates to the field of transfer tool technology, and in particular to a combined transfer device for GIS components in indoor confined spaces and its transfer method. Background Technology

[0002] As core equipment in power systems, GIS (Gas Insulated Switchgear) components are heavy and have a high center of gravity. In confined spaces such as indoor substations, transport paths often involve narrow passages and corners, requiring transport equipment to have extremely compact external dimensions. However, a compact wheelbase chassis is highly susceptible to overturning due to lateral moments when lifting heavy, high-center-of-gravity components, creating a contradiction in the design of transport equipment.

[0003] In existing technologies, two common solutions are used to resolve the conflict between maneuverability and stability: one is to use a fixed wide chassis structure, but this directly sacrifices maneuverability and cannot adapt to narrow passages; the other is to use an electrically or hydraulically driven telescopic chassis, but the chassis deployment and cargo lifting actions of such equipment are usually executed by two independent control systems or hydraulic circuits. This independent control logic has inherent safety hazards: in complex on-site operations, operators may, due to misoperation or misjudgment, lift cargo before the chassis is fully deployed; or, when there is a signal delay in the equipment system, a asynchronous phenomenon may occur where lifting is faster than deployment. This "non-correlated action" often results in insufficient bottom support width during the most dangerous high center of gravity lifting phase, which can easily lead to major tipping accidents.

[0004] Furthermore, for modular transport fixtures used in indoor operations, their load-bearing connectors (such as through pins) are often in a loose, unloaded state during assembly, alignment, and no-load adjustment. Existing equipment lacks a pre-fixed design for this transitional stage, making the connectors prone to slippage or displacement due to minor vibrations during assembly. Moreover, during dynamic transport under load, there is a lack of an adaptive locking structure for the lifting hole positions, making it difficult to eliminate the risk of connection failure. Summary of the Invention

[0005] During the R&D process, shortcomings of existing GIS component transfer equipment were discovered: in confined indoor spaces, high center of gravity loads are prone to tipping over, especially since independent control of lifting and chassis deployment can lead to operational misjudgments or signal delays. The solution was to directly convert the vertical lifting of the hydraulic cylinder into the lateral deployment of the rotating arm, ensuring forced synchronization and avoiding dangerous operating conditions. Simultaneously, to address the issues of easy detachment of separate components during assembly / unloaded phases and disengagement during dynamic transportation, magnetic pre-fixation and V-groove geometric locking were introduced to ensure stability throughout the entire process, rather than simple fixation.

[0006] The mechanical linkage of this invention enables automatic switching between passability and stability, improving transfer efficiency and preventing accidents; modular assembly (such as plug-in blocks) facilitates rapid deployment and adapts to narrow indoor environments; omnidirectional movement (such as crab walking) enhances maneuverability.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] An indoor confined space GIS component modular transfer device includes two parallel load-bearing beams and two upper frames. The load-bearing beams and upper frames are fixedly connected by plug-in parts to assemble the two load-bearing beams and two upper frames into a rectangular frame as a whole.

[0009] The load-bearing beam has connecting ears on both sides of its bottom. Each of the two connecting ears has a connecting hole, and a load-bearing rod passes through each of the two connecting holes. The load-bearing rod is configured to be inserted into the lifting hole on the bottom plate of the main frame to support the main frame.

[0010] The upper frame is equipped with a drive mechanism, which includes a hydraulic cylinder and a heavy-duty steering wheel. The piston rod of the hydraulic cylinder slides through the upper frame and is rotatably connected to the lower frame. The heavy-duty steering wheel is rotatably connected to the lower frame. The hydraulic cylinder is used to drive the lower frame to lift and lower, thereby lifting or lowering the main body of the frame through the rectangular frame as a whole and the load-bearing rod. The drive mechanism also includes a first drive component that drives the heavy-duty steering wheel to rotate, and a second drive component that drives the lower frame to rotate around the piston rod of the hydraulic cylinder as the axis, so as to realize the straight, lateral, in-situ turning and crab-like movements of the main body of the frame after it is lifted.

[0011] It also includes a balancing mechanism, which includes two rotating arms, both of which are rotatably connected to the side of the lower frame away from the load-bearing beam. When the hydraulic cylinder drives the lower frame to descend to lift the main body of the frame, the balancing mechanism drives the two rotating arms to unfold, so as to form lateral support for the entire rectangular frame and prevent it from deflecting around the load-bearing rod as the axis.

[0012] In one possible design, the plug-in portion includes a slot disposed at the end of the load-bearing beam and a plug-in block disposed at the end of the upper frame, the plug-in block being plugged into the slot and fixed by a pin.

[0013] In one possible design, the second drive component includes a fixed gear, a rotating gear, and a second motor; the fixed gear is rotatably connected to the top of the lower frame and is circumferentially fixed to and axially slidably connected to the upper frame via a sliding shaft; the rotating gear is fixed to the output shaft of the second motor and meshes with the fixed gear.

[0014] The first driving component includes a first motor, the output shaft of which is fixedly connected to the shaft of the heavy-duty steering wheel.

[0015] In one possible design, the balancing mechanism further includes a lower support plate fixed to one side of the lower frame and an upper support plate fixed to one side of the upper frame. The rotating arm is rotatably connected to the top of the lower support plate via a rotating shaft. A sliding rod is slidably connected inside the rotating shaft. The mating surfaces of the rotating shaft and the sliding rod are coated with grease and have a dustproof sealing ring. The top end of the sliding rod rotatably passes through the upper support plate and is fixed with a turntable.

[0016] In one possible design, the balancing mechanism further includes a U-shaped plate, a lifting plate, a fixed rod, and connecting rods. The lifting plate is fixed to the lower support plate and slides through the upper support plate, and has an inclined groove inside. The U-shaped plate is slidably arranged, and a guide rod that slides with the inclined groove is fixed inside. The fixed rod is fixed to the U-shaped plate. One end of the two connecting rods is rotatably connected to the fixed rod, and the other end is eccentrically connected to the corresponding turntable through a pin. When the hydraulic cylinder drives the lower frame to descend, the lifting plate moves down synchronously. The U-shaped plate and the fixed rod move laterally through the cooperation of the inclined groove and the guide rod, and then the two turntables rotate in opposite directions through the connecting rod and the pin. Finally, the two rotating arms are extended through the sliding rod and the rotating shaft.

[0017] In one possible design, the bottom of the rotating arm is fitted with casters.

[0018] In one possible design, one end of the load-bearing rod is provided with a fixed head seat, the fixed head seat is provided with a magnetic block, and the load-bearing beam is provided with a sheet metal layer that is attracted and cooperates with the magnetic block; the other end of the load-bearing rod is provided with a round end, and a V-shaped groove is provided in the middle; when the load-bearing rod passes through the connecting hole and the lifting hole, the top inner wall of the lifting hole is limited to the V-shaped groove.

[0019] In one possible design, the heavy-duty steering wheel is a polyurethane roller.

[0020] In one possible design, the upper frame has a connecting arm on the side away from the load-bearing beam, and the bottom end of the connecting arm is rotatably equipped with a roller.

[0021] This invention uses a hydraulic cylinder to force the rotating arm to unfold, achieving a strict correlation between lifting height and support width. Magnetic pre-fixation and V-groove self-locking ensure reliable connection. The load-bearing beam and upper frame can be quickly assembled and disassembled, balancing maneuverability and transportation convenience. The first motor and second motor work together to achieve four motion modes, adapting to limited spaces. The mechanical linkage balance mechanism and the dual fixing design of the load-bearing rod work together to solve the stability problem of high center of gravity transfer and avoid the risk of connection failure. Compared with existing technologies that only improve one aspect, this invention improves the overall safety, reliability, and operational efficiency of the equipment.

[0022] The transfer method for the indoor confined space GIS component modular transfer equipment in this application includes the following steps:

[0023] S1. Assemble the load-bearing connection: Pass the two load-bearing beams through the main body of the frame, and insert the load-bearing rods into the connecting holes of the load-bearing beams, connecting ears and the hanging holes of the bottom plate of the main body of the frame in sequence, so that the top inner wall of the hanging holes is inserted into the V-groove of the load-bearing rods, thereby realizing the load-bearing beams and the main body of the frame for mounting connection.

[0024] S2. Equipment assembly and lifting: Insert the upper frame's connector into the slot of the load-bearing beam and fix it with pins to complete the overall assembly of the rectangular frame; then start the hydraulic cylinder to drive the lower frame to extend downward relative to the upper frame, the heavy-duty steering wheel touches the ground and bears the force, and then lifts the main body of the frame off the ground through the rectangular frame as a whole.

[0025] S3. Synchronous Mechanical Deployment: In step S2, while the hydraulic cylinder drives the lower frame to move downward, the balancing mechanism is triggered: the lower frame drives the lifting plate to move downward synchronously, and the sliding cooperation between the inclined groove in the lifting plate and the guide rod on the U-shaped plate drives the U-shaped plate and the fixed rod to move laterally; the fixed rod drives the turntable to rotate through the connecting rod, and then drives the rotating arm to unfold outward through the sliding rod, forming lateral support for the equipment during the lifting process;

[0026] S4. Omnidirectional transport: The machine moves by rotating a heavy-duty steering wheel driven by a first motor; the lower frame rotates around the piston rod axis of a hydraulic cylinder by a second motor driven by a rotating gear meshing with a fixed gear to adjust the direction of travel, thus enabling the main body of the frame to move straight, sideways, turn in place, or crab-like.

[0027] Beneficial effects: 1. This invention adopts a mechanical linkage balancing mechanism, which solves the safety hazards caused by independent control of lifting and chassis deployment actions. Through the cooperation of the lifting plate inclined groove and the guide rod, the vertical lifting motion of the hydraulic cylinder is directly converted into the lateral deployment motion of the rotating arm. This forced linkage of a purely mechanical structure ensures that whenever the equipment performs a lifting action, the width of the bottom support will necessarily increase synchronously, physically eliminating the dangerous working condition of "narrow chassis and high lifting". Without adding additional sensors and control circuits, it achieves automatic switching between passability (retracted state) and stability (deployed state).

[0028] 2. This invention solves the problem of unstable connection throughout the entire process of split-type equipment by using the magnetic block adsorption of the load-bearing rod and the V-groove self-locking design. During the assembly and no-load adjustment stages, the magnetic block and the sheet metal layer of the load-bearing beam are used to achieve "pre-fixation" of the load-bearing rod, preventing parts from accidentally slipping off. During the load transfer stage, the structure of the frame main body's lifting hole wall locking into the V-groove forms a geometric lock, restricting the axial movement of the load-bearing rod and effectively preventing disengagement accidents caused by ground bumps.

[0029] 3. In this invention, the load-bearing beam and the upper frame are fixedly connected by a plug-in joint. Compared with traditional bolt fastening or welding methods, this enables rapid assembly and disassembly, significantly improving the equipment's assembly efficiency. The equipment can be quickly assembled before operation and disassembled for transportation and storage after operation, reducing the equipment's transportation and storage space requirements and lowering transportation and storage costs.

[0030] 4. In this invention, the coordinated operation of the first and second motors enables flexible switching between four movement modes: straight, sideways, turning in place, and crab-like movement. This multi-mode movement design significantly improves the equipment's mobility and flexibility, adapting to the operational needs of complex environments such as narrow passages and corner areas within limited indoor spaces. It also enables precise transport and positioning of GIS components, improving transport efficiency. Attached Figure Description

[0031] Figure 1 This is a three-dimensional structural schematic diagram of the indoor confined space GIS component combined transfer device provided by the present invention.

[0032] Figure 2 This is a three-dimensional exploded structural diagram of the indoor confined space GIS component combined transfer device provided by the present invention.

[0033] Figure 3 A three-dimensional structural diagram of the load-bearing beam, upper frame, and connecting arm of the indoor confined space GIS component combined transfer equipment provided by the present invention.

[0034] Figure 4 This is a three-dimensional exploded structural diagram of the load-bearing beam, plug-in block and upper frame of the indoor confined space GIS component combined transfer equipment provided by the present invention.

[0035] Figure 5 This is a three-dimensional exploded structural diagram of the upper frame, lower frame, and fixed gear of the indoor confined space GIS component combined transfer device provided by the present invention.

[0036] Figure 6 This is a three-dimensional exploded structural diagram of the connecting lugs and load-bearing rods of the indoor confined space GIS component combined transfer device provided by the present invention.

[0037] Figure 7 A three-dimensional cross-sectional structural diagram of the load-bearing rod and fixed head of the indoor confined space GIS component combined transfer device provided by the present invention;

[0038] Figure 8 A three-dimensional structural diagram of the load-bearing beam, upper frame, and rotating arm of the indoor confined space GIS component combined transfer equipment provided by the present invention.

[0039] Figure 9 This is a three-dimensional structural diagram of the rotating arm of the indoor confined space GIS component combined transfer device provided by the present invention after it has been unfolded.

[0040] Figure 10 A three-dimensional exploded structural diagram of the lower support plate, turntable, and rotating arm of the indoor confined space GIS component combined transfer device provided by the present invention;

[0041] Figure 11 This is a three-dimensional exploded structural diagram of the fixed base, lifting plate, and U-shaped plate of the indoor confined space GIS component combined transfer equipment provided by the present invention.

[0042] In the diagram: 1. Main frame; 2. Lifting hole; 3. Load-bearing beam; 4. Upper frame; 5. Connecting block; 6. Pin; 7. Slot; 8. Insertion hole; 9. Connecting ear; 10. Connecting hole; 11. Load-bearing rod; 12. Fixed head seat; 13. Magnetic block; 14. V-groove; 15. Round end; 16. Sliding shaft; 17. Fixed gear; 18. Hydraulic cylinder; 19. Lower frame; 20. Heavy-duty steering wheel; 21. ... 1. Motor; 22. Second motor; 23. Rotating gear; 24. Lower support plate; 25. Support beam; 26. Rotating shaft; 27. Rotating arm; 28. Caster wheel; 29. ​​Upper support plate; 30. Slide rod; 31. Turntable; 32. Fixed seat; 33. U-shaped plate; 34. Fixed rod; 35. Connecting rod; 36. Pin; 37. Lifting plate; 38. Inclined groove; 39. Guide rod; 40. Connecting arm; 41. Rolling wheel. Detailed Implementation

[0043] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0044] In one embodiment: Refer to Figures 1-11 This invention relates to the field of transfer tool technology for GIS components in confined indoor spaces. It mainly comprises a load-bearing beam 3 and an upper frame 4, connected by a connector. The bottom of the load-bearing beam 3 has a connecting lug 9, through which a load-bearing rod 11 passes. The load-bearing rod 11 engages with the lifting hole 2 on the main frame 1 to be transferred. The upper frame 4 contains a drive mechanism, which includes a hydraulic cylinder 18 and a heavy-duty steering wheel 20, used to drive the main frame 1 to perform multi-directional movement after lifting it. The equipment also has a balancing mechanism to maintain the stability of the overall structure during hoisting and prevent tipping. This equipment is specifically designed for flexible, stable, and efficient transfer and positioning of heavy GIS components or their mounting frames in indoor environments with limited height and narrow spaces.

[0045] Furthermore, referring to Figure 3 and Figure 4 The core load-bearing and connecting structure of the equipment consists of two load-bearing beams 3 and two upper frames 4. The two load-bearing beams 3 are arranged in parallel, and each load-bearing beam 3 has a connecting structure at both ends. The two upper frames 4 are located on the outer sides of the two load-bearing beams 3 respectively. The load-bearing beams 3 and the upper frames 4 are fixedly connected by a quick-release plug-in part. Specifically, the plug-in part includes a slot 7 at the end of the load-bearing beam 3. The end of the upper frame 4 facing the load-bearing beam 3 has an integrally formed plug-in block 5 that matches the slot 7. During assembly, the operator aligns the plug-in block 5 of the upper frame 4 with the slot 7 at the end of the load-bearing beam 3 and inserts it. To ensure a firm connection, multiple insertion holes 8 are provided inside the load-bearing beam 3, perpendicular to the extension direction of the slot 7. These insertion holes 8 penetrate the slot 7. When the plug-in block 5 is fully inserted into the slot 7, the reserved hole on the plug-in block 5 aligns with the insertion hole 8 on the load-bearing beam 3. At this time, the pin is... The pin 6 is inserted into the socket 8. The bottom end of the pin 6 passes through the socket 8 of the load-bearing beam 3 and the hole on the plug block 5 in sequence, thereby locking the load-bearing beam 3 to the upper frame 4. Through this connection method of two load-bearing beams 3 and four upper frames 4, a rigid rectangular top frame structure can be quickly assembled. This top frame structure provides a stable support foundation for subsequent hoisting and transportation operations. The end of the pin 6 can be equipped with a cotter pin or lock nut to prevent it from falling off. The mating surface of the slot 7 and the plug block 5 can be designed as a beveled surface with a guide chamfer to facilitate alignment and insertion. The size of the plug block 5 and the size of the slot 7 form a tight fit to reduce the shaking at the connection. The number of sockets 8 can be set to two or more according to the load-bearing requirements to distribute the shear force. The load-bearing beam 3 and the upper frame 4 are usually welded or cast from high-strength structural steel, such as Q345B steel, to ensure sufficient structural strength and rigidity.

[0046] Furthermore, referring to Figure 6 The main frame 1 to be transferred is usually the installation foundation or large component of GIS equipment. Four lifting holes 2 are pre-set on its base plate or designated load-bearing parts. On both sides of the bottom of each load-bearing beam 3 of this equipment, there are integrally formed downward extending connecting ears 9. Each connecting ear 9 has a connecting hole 10. The two load-bearing beams 3 provide a total of four connecting ears 9 and connecting holes 10. A load-bearing rod 11 passes through the connecting hole 10.

[0047] Furthermore, referring to Figure 3 and Figure 4The drive mechanism is located inside and below each upper frame 4. Its core function is to provide lifting power and drive the entire equipment to move omnidirectionally with the load. The drive mechanism mainly includes a hydraulic cylinder 18 and a heavy-duty steering wheel 20, along with necessary transmission and control components. The hydraulic cylinder 18 is firmly fixed to the internal space of the upper frame 4 by a mounting base. The piston rod of the hydraulic cylinder 18 slides vertically downward through the bottom panel of the upper frame 4. The end of the piston rod is rotatably connected to a lower frame 19 through a bearing. This connection allows the lower frame 19 to rotate around the axis of the piston rod. The lower frame 19 is a load-bearing structure, and its internal structure is rotated by wheel axle bearings. The machine is equipped with a heavy-duty steering wheel 20, which is preferably made of polyurethane-coated rollers. This material combination ensures efficient operation of the equipment on indoor floors while effectively protecting ceramic tiles, epoxy flooring, and other surfaces from indentations or scratches. The extension and retraction of the piston rod of the hydraulic cylinder 18, controlled by an external hydraulic pump station, precisely controls the vertical distance between the lower frame 19 and the upper frame 4. When the piston rod extends, the lower frame 19 and the heavy-duty steering wheel 20 descend to contact the ground, lifting the upper frame 4 and the entire top frame structure. This, in turn, lifts the main frame 1 off the ground via the load-bearing rod 11. To achieve the driving and steering of the heavy-duty steering wheel 20, the lower frame 19... One side of the frame is fixed with a first motor 21 and a second motor 22. The first motor 21 is a travel drive motor, and its output shaft is directly fixed to the rotating shaft of the heavy-duty steering wheel 20 through a coupling or reducer. Driving the first motor 21 can drive the heavy-duty steering wheel 20 to rotate actively, thereby providing the equipment with forward or backward power. The second motor 22 is a steering drive motor, and a rotating gear 23 is fixedly installed at the top of its output shaft. At the top of the lower frame 19, a fixed gear 17 is rotatably connected through a bearing. The fixed gear 17 and the rotating gear 23 are on the same horizontal plane and mesh with each other. Multiple fixed parts are fixed to the top of the fixed gear 17. Vertically upward sliding shafts 16, the top ends of which slide through the corresponding guide holes at the bottom of the upper frame 4. The sliding shafts 16 and the guide holes can be fitted with linear bearings to ensure smooth movement and torque transmission. A sealing sleeve is provided at the joint between the sliding shafts 16 and the upper frame 4. The sliding shafts 16 are designed so that during the lifting and lowering of the frame 19 by the hydraulic cylinder 18, the fixed gear 17 and the rotating gear 23 always maintain the correct meshing relationship and will not disengage due to changes in the frame spacing. The rotating gear 23 is fixed to the output shaft of the second motor 22 and meshes with the fixed gear 17. A dust cover (not shown) is provided on the outside of the gear meshing area.

[0048] Specifically, when the direction of equipment movement needs to be adjusted, the second motor 22 is started to drive the rotating gear 23 to rotate. Since the rotating gear 23 meshes with the fixed gear 17, and the fixed gear 17 is connected to the upper frame 4 through the sliding shaft 16 and cannot rotate, the reaction force will drive the second motor 22 and the lower frame 19 to rotate around the axis of the piston rod of the hydraulic cylinder 18, thereby changing the rolling direction of the heavy-duty steering wheel 20. By coordinating the control of the two first motors 21 and all the steering second motors 22, the equipment can realize multiple movement modes such as straight movement, sideways movement, zero-radius turning in place, and crab movement, so as to flexibly and accurately move the heavy frame body 1 to the predetermined installation position in a narrow indoor space. The hydraulic system can be equipped with an accumulator and a precision control valve to achieve smooth lifting and lowering. The motor can be a variable frequency motor or a servo motor to achieve precise speed and position control. The control system can integrate a PLC and a remote control device for convenient and flexible operation by the operator from a distance.

[0049] The equipment is also equipped with a controller (not shown in the figure), which is preferably a PLC or an industrial microcontroller. It is electrically connected to the solenoid valves of each hydraulic cylinder 18, each first motor 21 and each second motor 22 respectively. The controller is configured to receive operation commands and coordinate the synchronous lifting and lowering of each hydraulic cylinder 18, as well as coordinate the speed of each first motor 21 and the rotation angle of each second motor 22, thereby realizing the straight, lateral, in-situ turning and crab-like movements of the equipment.

[0050] Furthermore, referring to Figures 8-11The balancing mechanism is a key safety feature of this equipment. Its function is to counteract the overturning moment generated by the weight of the main frame 1 during hoisting loads, preventing the entire equipment from tilting laterally around the load-bearing rod 11. The balancing mechanism is mainly installed on the side of the equipment away from the load-bearing beam 3, that is, the outer ends of the upper frame 4 and the lower frame 19. The balancing mechanism includes a lower support plate 24 bolted to the outside of the lower frame 19 and an upper support plate 29 bolted to the outside of the upper frame 4. The lower support plate 24 and the upper support plate 29 are arranged vertically opposite each other. On the top of the lower support plate 24, two parallel rotating shafts 26 are rotatably connected via bearing seats. A rotating arm 27 is fixedly sleeved on the outer wall of each of the two rotating shafts 26. The rotating arm 27 is usually a plate-shaped structure with a certain length. Inside the rotating shaft 26, there is a slide rail or groove along the axial direction. The bottom ends of the two slide rods 30 are respectively inserted into the slide rails or grooves inside the two rotating shafts 26 to form a sliding connection. The mating surfaces of the rotating shaft 26 and the slide rods 30 are coated with grease and are provided with dustproof sealing rings. The top ends of the two slide rods 30 extend upward and rotate sequentially through the corresponding holes on the lower support plate 24 and the upper support plate 29. A turntable 31 is fixed above the upper support plate 29. The sliding connection between the slide rods 30 and the rotating shaft 26 allows the slide rods 30 to slide axially within the rotating shaft 26 when the rotating arm 27 is extended or retracted to compensate for changes in geometric position. The two turntables 31 are connected to a linkage mechanism through an eccentric connection point on them. This linkage mechanism is used to drive the two turntables 31 to rotate synchronously in opposite directions.

[0051] Furthermore, referring to Figure 3 and Figure 4 The linkage mechanism includes a fixed base 32, a U-shaped plate 33, a lifting plate 37, and a connecting rod 35 assembly. A fixed base 32 is bolted to the outer wall of the upper frame 4, with its top end sliding upwards through the upper support plate 29. A U-shaped plate 33 is horizontally arranged, with its open end sliding through the fixed base 32, allowing the U-shaped plate 33 to slide horizontally relative to the fixed base 32. A vertical lifting plate 37 is welded and fixed to the top of the lower support plate 24, with its top end sliding upwards through the upper support plate 29. The lifting plate 37... An inclined groove 38 is provided on the upper part of the U-shaped plate 33. A guide rod 39 is fixed on the inner side of the U-shaped plate 33. The end of the guide rod 39 is embedded in the inclined groove 38 of the lifting plate 37 to form a sliding fit. A horizontal fixed rod 34 is fixed at the closed end of the U-shaped plate 33. A connecting rod 35 is rotatably connected to both sides of the fixed rod 34 by hinges. The other ends of the two connecting rods 35 are rotatably connected to the top eccentric position of the two turntables 31 by pins 36. That is, the pins 36 are fixed on the turntables 31 at a position off the center of their circle.

[0052] Specifically, the working process of the balancing mechanism is automatically linked with the lifting action of the drive mechanism. When the piston rod of the hydraulic cylinder 18 extends and pushes the lower frame 19 down to lift the load, the lower frame 19 drives the lower support plate 24 on its outer side to descend synchronously. The lower support plate 24 drives the lifting plate 37 on it to move downward together. Since the lifting plate 37 slides with the guide rod 39 fixed on the U-shaped plate 33 through the inclined groove 38, the downward movement of the lifting plate 37 forces the guide rod 39 to slide along the inclined groove 38. Since the inclined groove 38 is inclined, this sliding will be converted into the U-shaped plate 33 sliding in the water. The horizontal movement pushes the U-shaped plate 33, along with the fixed rod 34, to move away from the load-bearing beam 3. The horizontal movement of the fixed rod 34 is transmitted to the two eccentrically connected pins 36 through the connecting rods 35 hinged on both sides. This movement is converted into a rotational driving force on the two turntables 31, causing them to rotate in opposite directions. The rotation of the turntables 31 drives the slide rod 30 fixed to them to rotate. The slide rod 30 transmits the rotational motion to the rotating shaft 26 through the sliding fit between its bottom end and the inside of the rotating shaft 26, thereby driving the two rotating arms 27 downward and outward. The rotating arm 27 unfolds like wings, extending towards the ground on both sides of the equipment. The bottom of the rotating arm 27 is typically equipped with casters 28. When the rotating arm 27 unfolds to the preset support position, the braking mechanism of the casters 28 automatically locks, limiting its lateral and longitudinal displacement. Furthermore, as the rotating arm 27 unfolds, the lateral distance between its end support point and the equipment's center of gravity increases, forming a stable support base. This support base effectively resists the overturning moment caused by the shift of the frame body's center of gravity or its inertia, ensuring the stability of the entire transfer equipment under load. The extension angle and length of the boom 27 are designed to ensure that, within the normal size range of the main frame 1, the extension trajectory of the universal wheel 28 at its end does not interfere with the main frame 1 or other parts of the equipment, and can provide effective lateral support. When the piston rod of the hydraulic cylinder 18 retracts and the equipment is unloaded, the lower frame 19 rises. Through the reverse linkage process, the lifting plate 37 moves upward. Under the action of the mechanism's own weight, the U-shaped plate 33 returns to the direction of the load-bearing beam 3, pulling the connecting rod 35 to make the turntable 31 rotate in the opposite direction, and finally retracting the boom 27 for easy disassembly and storage later.

[0053] Furthermore, referring to Figure 11 The sliding and rotating parts such as the inclined groove 38 and guide rod 39 in the balancing mechanism may be affected by environmental dust and other factors after long-term use. Therefore, in order to ensure the long-term reliable operation of the equipment, it is recommended to clean and lubricate the above-mentioned moving parts regularly.

[0054] Furthermore, referring to Figure 9 and Figure 10To enhance the supporting rigidity of the lower support plate 24, multiple support beams 25 are welded or bolted to its bottom. The bottom ends of these support beams 25 are all firmly connected to the side walls of the lower frame 19, thereby effectively transferring the force borne by the lower support plate 24 to the main structure of the lower frame 19.

[0055] In another embodiment: Refer to Figure 3 The upper frame 4 is fixed with a connecting arm 40 by bolts on the side away from the load-bearing beam 3. The bottom end of the connecting arm 40 is provided with a rolling wheel 41. The rolling wheel 41 is used to support the upper frame 4 and the lower frame 19. Under no external force, the upper frame 4 and the lower frame 19 are always placed vertically, which facilitates the direct insertion and mating of the plug-in block 5 and the slot 7 in the later stage.

[0056] In another embodiment: Refer to Figure 6 and Figure 7 One end of the load-bearing rod 11 is fixed with a large-diameter fixing head 12. Multiple magnetic blocks 13 are fixed to the side of the fixing head 12 facing the load-bearing beam 3. Correspondingly, a sheet metal layer or a magnetic material is provided on the end surface of the load-bearing beam 3, or on the surface of the load-bearing beam 3 near the connecting lug 9. When the load-bearing rod 11 is inserted into the connecting hole 10, a magnetic attraction force is generated between the magnetic blocks 13 on the fixing head 12 and the sheet metal layer on the load-bearing beam 3. This magnetic attraction force is sufficient to attract the load-bearing rod 11 to the load-bearing beam 3 in the non-working state, preventing the load-bearing rod 11 from accidentally falling out of the connecting hole 10 and being lost during equipment disassembly or movement. The other end of the load-bearing rod 11 is machined into a round end 15 to facilitate insertion into the lifting hole 2. An annular V-shaped groove 14 is provided on the body of the load-bearing rod 11 near the round end 15. During hoisting operations, the operator inserts the end of the load-bearing rod 11 with the rounded end 15 through the connecting hole 10 on the connecting lug 9 of the load-bearing beam 3 and the lifting hole 2 on the bottom plate of the frame body 1. As the equipment lifts the frame body 1, the inner wall of the upper edge of the lifting hole 2 will engage with the V-groove 14 of the load-bearing rod 11. The wedge-shaped structure of the V-groove 14 can effectively prevent the load-bearing rod 11 from slipping out of the lifting hole 2 due to vibration or tilting during handling, thereby ensuring the integrity and safety of the connection between the load-bearing beam 3 and the frame body 1. The load-bearing rod 11 can be made of alloy steel and heat-treated to have high bending strength. The V-groove 14 can provide sufficient locking force while avoiding excessive stress concentration. The magnetic strength of the magnetic block 13 needs to be selected so that it can be both attracted and fixed, and can be separated by applying appropriate force manually when needed.

[0057] During long-term use, the following components of this equipment require regular maintenance:

[0058] 1. Every 50 hours of operation, replenish the meshing surfaces of the fixed gear 17 and the rotating gear 23, the mating surfaces of the slide rod 30 and the rotating shaft 26, and the mating surfaces of the guide rod 39 and the inclined groove 38 with grease.

[0059] 2. Every 100 hours of operation, clean the dust cover, dust seal ring and dust baffle surface to remove dust and debris, and check the integrity of the sealing structure;

[0060] 3. Regularly check the wear of the heavy-duty steering wheel 20 and casters 28. Replace them promptly if the wear exceeds the preset threshold. The above maintenance procedures are for illustrative purposes only; the maintenance cycle can be adjusted according to the actual usage environment.

[0061] The method for transporting modular GIS components in indoor confined spaces includes the following steps:

[0062] S1. Pass the two load-bearing beams 3 through the frame body 1. The operator inserts the end of the load-bearing rod 11 with the round end 15 into the load-bearing beam 3, the connecting hole 10 on the connecting lug 9 and the lifting hole 2 on the bottom plate of the frame body 1 in sequence. This connects the load-bearing beam 3 to the frame body 1, which makes it easier for the load-bearing beam 3 to lift the frame body 1 as a whole later. In addition, when the load-bearing rod 11 passes through the connecting hole 10 and the lifting hole 2, the top inner wall of the lifting hole 2 can be inserted into the V-groove 14, which prevents the load-bearing rod 11 from detaching from the lifting hole 2 when the frame body 1 is moved later, causing the load-bearing beam 3 to become unhooked from the frame body 1.

[0063] S2. Insert the plug block 5 on one side of the upper frame 4 into the slot 7. Through the pin 6, pass through the plug hole 8 on the load-bearing beam 3 and the plug block 5 in sequence. The upper frame 4 can be fixedly installed at the end of the load-bearing beam 3. Then, the output shaft of the hydraulic cylinder 18 pushes the lower frame 19 to move down as a whole. During the downward movement, the heavy-duty steering wheel 20 touches the ground and pushes the load-bearing beam 3 to move up under the reaction force. The load-bearing beam 3 lifts the frame body 1 as a whole, completing the hoisting operation of the frame body 1. This facilitates the later transportation. The disassembly and assembly of the load-bearing beam 3 and the upper frame 4 can be easily completed. It is suitable for flexibly transporting the frame body 1 in a limited indoor space, accurately reaching the designated position, and achieving seamless connection with the unloading and installation process.

[0064] S3. When the lower frame 19 is pushed down by the output shaft of the hydraulic cylinder 18, the lower frame 19 drives the lifting plate 37 to move synchronously through the lower support plate 24. The U-shaped plate 33 moves away from the load-bearing beam 3 under the sliding cooperation of the inclined groove 38 and the guide rod 39. The U-shaped plate 33 drives the fixed rod 34 to move. The fixed rod 34 can drive the two turntables 31 to rotate in opposite directions through the two connecting rods 35 connected to both sides and the corresponding pins 36. The turntables 31 drive the two rotating arms 27 to rotate through the sliding cooperation between the slide rod 30 and the rotating shaft 26, so that the two rotating arms 27 unfold. Then, when the frame body 1 is lifted, the two unfolded rotating arms 27 can support the load-bearing beam 3 and the upper frame 4, preventing the load-bearing beam 3 and the upper frame 4 from tilting with the load-bearing rod 11 as the axis under the gravity of the frame body 1, and ensuring the stability of the frame body 1 during subsequent transportation.

[0065] S4. The heavy-duty steering wheel 20 is driven to rotate by the first motor 21, which can drive the load-bearing beam 3, the upper frame 4 and the rotating arm 27 to transfer the main body of the frame 1. During the transfer, the rotating gear 23 is driven to rotate by the second motor 22. The rotating gear 23 meshes with the fixed gear 17, and the lower frame 19 can rotate around the piston rod of the hydraulic cylinder 18 as the axis, thereby adjusting the direction of the lower frame 19. Therefore, the cooperation of the first motor 21 and the second motor 22 can realize the movement of straight, sideways, turning in place and crab-like, ensuring that the main body of the frame 1 is moved to a fixed position.

[0066] The specific circuit connections and control logic of the motor, hydraulic cylinder and controller involved in this embodiment are all conventional technologies in the field, and will not be described in detail here.

[0067] The accompanying drawings in this application are for illustrative purposes only. The dimensions and shapes of the components shown are not actual limitations but are merely schematic representations. In actual implementation, the components can be reasonably configured and adjusted according to specific needs and actual conditions.

[0068] The above description is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and inventive concept of the present invention, should be covered within the scope of protection of the present invention.

Claims

1. An indoor confined space GIS component modular transfer device, comprising two parallel load-bearing beams (3) and two upper frames (4), wherein the load-bearing beams (3) and the upper frames (4) are fixedly connected by plug-in joints to assemble the two load-bearing beams (3) and the two upper frames (4) into a rectangular frame assembly, characterized in that, Also includes: The load-bearing beam (3) has connecting ears (9) on both sides of its bottom. There are connecting holes (10) in the two connecting ears (9). A load-bearing rod (11) is inserted through the two connecting holes (10). The load-bearing rod (11) is configured to be inserted into the lifting hole (2) on the bottom plate of the frame body (1) to support the frame body (1). The upper frame (4) is provided with a drive mechanism, which includes a hydraulic cylinder (18) and a heavy-duty steering wheel (20). The piston rod of the hydraulic cylinder (18) slides through the upper frame (4) and is rotatably connected to the lower frame (19). The heavy-duty steering wheel (20) is rotatably connected to the lower frame (19). The hydraulic cylinder (18) is used to drive the lower frame (19) to rise and fall, thereby lifting or lowering the main body of the frame (1) through the entire rectangular frame and the load-bearing rod (11). The drive mechanism also includes a first drive component that drives the heavy-duty steering wheel (20) to rotate, and a second drive component that drives the lower frame (19) to rotate around the piston rod of the hydraulic cylinder (18) as the axis, so as to realize the straight, sideways, in-situ turning and crab-like movements of the main body of the frame (1) after it is lifted. The insertion part includes a slot (7) provided at the end of the load-bearing beam (3) and an insertion block (5) provided at the end of the upper frame (4). The insertion block (5) is inserted into the slot (7) and fixed by a pin (6). The second driving component includes a fixed gear (17), a rotating gear (23), and a second motor (22). The fixed gear (17) is rotatably connected to the top of the lower frame (19) and is circumferentially fixed and axially slidably connected to the upper frame (4) through a sliding shaft (16). The rotating gear (23) is fixed to the output shaft of the second motor (22) and meshes with the fixed gear (17). The first driving component includes a first motor (21), the output shaft of which is fixedly connected to the shaft of the heavy-duty steering wheel (20); It also includes a balancing mechanism, which includes two rotating arms (27), both of which are rotatably connected to the side of the lower frame (19) away from the load-bearing beam (3); when the hydraulic cylinder (18) drives the lower frame (19) to descend to lift the main body of the frame (1), the balancing mechanism drives the two rotating arms (27) to unfold, so as to form lateral support for the entire rectangular frame and prevent it from deflecting around the load-bearing rod (11) as the axis; The balancing mechanism also includes a lower support plate (24) fixed to one side of the lower frame (19) and an upper support plate (29) fixed to one side of the upper frame (4). The rotating arm (27) is rotatably connected to the top of the lower support plate (24) via a rotating shaft (26). A sliding rod (30) is slidably connected inside the rotating shaft (26). The mating surfaces of the rotating shaft (26) and the sliding rod (30) are coated with grease and have dustproof sealing rings. The top end of the sliding rod (30) rotatably passes through the upper support plate (29) and is fixed with a turntable (31). The balancing mechanism also includes a U-shaped plate (33), a lifting plate (37), a fixed rod (34), and a connecting rod (35). The lifting plate (37) is fixed to the lower support plate (24) and slidably passes through the upper support plate (29). It has an inclined groove (38) inside. The U-shaped plate (33) is slidably arranged, and a guide rod (39) that slides with the inclined groove (38) is fixed inside. The fixed rod (34) is fixed to the U-shaped plate (33). One end of the two connecting rods (35) is rotatably connected to the fixed rod (34), and the other end is eccentrically connected to the corresponding turntable (31) through the pin (36). When the hydraulic cylinder (18) drives the lower frame (19) to descend, the lifting plate (37) moves down synchronously. The U-shaped plate (33) and the fixed rod (34) are driven to move laterally through the cooperation of the inclined groove (38) and the guide rod (39). Then, the two turntables (31) are driven to rotate in opposite directions through the connecting rod (35) and the pin (36). Finally, the two rotating arms (27) are driven to unfold through the sliding rod (30) and the rotating shaft (26).

2. The indoor confined space GIS component modular transfer equipment according to claim 1, characterized in that, The bottom of the rotating arm (27) is equipped with casters (28).

3. The indoor confined space GIS component modular transfer equipment according to claim 2, characterized in that, One end of the load-bearing rod (11) is provided with a fixed head seat (12), and a magnetic block (13) is provided on the fixed head seat (12). The load-bearing beam (3) is provided with a sheet metal layer that is attracted and cooperates with the magnetic block (13). The other end of the load-bearing rod (11) is provided with a round end (15), and a V-shaped groove (14) is provided in the middle. When the load-bearing rod (11) passes through the connecting hole (10) and the lifting hole (2), the top inner wall of the lifting hole (2) is limited to the V-shaped groove (14).

4. The indoor confined space GIS component combined transfer equipment according to claim 3, characterized in that, The heavy-duty steering wheel (20) is a polyurethane roller.

5. The indoor confined space GIS component modular transfer equipment according to claim 4, characterized in that, The upper frame (4) is provided with a connecting arm (40) on the side away from the load-bearing beam (3), and the bottom end of the connecting arm (40) is provided with a rolling wheel (41).

6. A method for transporting GIS components in indoor confined spaces, applied to the GIS components transporting equipment described in claim 5, characterized in that, Includes the following steps: S1. Pass the two load-bearing beams (3) through the frame body (1), and insert the load-bearing rod (11) into the load-bearing beam (3), the connecting hole (10) of the connecting ear (9) and the hanging hole (2) of the bottom plate of the frame body (1) in sequence, so that the top inner wall of the hanging hole (2) is inserted into the V-groove (14) of the load-bearing rod (11) to realize the mounting connection between the load-bearing beam (3) and the frame body (1); S2. Insert the plug block (5) of the upper frame (4) into the slot (7) of the load-bearing beam (3) and fix it with the pin (6) to complete the overall assembly of the rectangular frame; then start the hydraulic cylinder (18) to drive the lower frame (19) to extend downward relative to the upper frame (4), and the heavy-duty steering wheel (20) touches the ground and bears the force, thereby lifting the main body (1) of the frame off the ground through the rectangular frame as a whole. S3. In step S2, while the hydraulic cylinder (18) drives the lower frame (19) to move down, the balancing mechanism is triggered: the lower frame (19) drives the lifting plate (37) to move down synchronously. By utilizing the sliding cooperation between the inclined groove (38) in the lifting plate (37) and the guide rod (39) on the U-shaped plate (33), the U-shaped plate (33) and the fixed rod (34) are driven to move laterally. The fixed rod (34) drives the turntable (31) to rotate through the connecting rod (35), and then drives the rotating arm (27) to unfold outward through the sliding rod (30), forming lateral support for the equipment during the lifting process. S4. The heavy-duty steering wheel (20) is driven to rotate by the first motor (21) to achieve walking; the rotating gear (23) is driven to mesh with the fixed gear (17) by the second motor (22) to drive the lower frame (19) to rotate around the piston rod axis of the hydraulic cylinder (18) to adjust the direction of travel, so as to realize the straight, sideways, in-place turning or crab-like movement of the frame body (1).

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