A device for dismounting and lifting radiators

Abstract

The application discloses a kind of overhaul radiator dismounting lifting device, including first support frame, second support frame and lifting assembly, the lower end of first support frame and second support frame is equipped with first universal wheel, first support frame and second support frame are respectively arranged in the left and right sides of lifting assembly, lifting assembly is equipped with lifting assembly in first support frame and second support frame, the side of first support frame and second support frame away from lifting assembly is equipped with ladder, the upper end of ladder is close to lifting assembly, height adjusting assembly is installed in the upper end of ladder in first support frame and second support frame;Height adjusting assembly in the application can adjust the height of color plate, and the staff can adjust the standing height of stepping plate to the most comfortable height according to own height and radiator installation position by first automatic telescopic rod, so as to operate in an upright posture, avoid the professional health problems such as lumbar muscle strain, shoulder and neck injury caused by long time squatting or bending, significantly improve the operation comfort and work efficiency.

Description

Technical Field

[0001] This invention relates to the field of aircraft maintenance equipment technology, and in particular to an aircraft maintenance radiator disassembly and assembly lifting device. Background Technology

[0002] In the field of aircraft maintenance, aircraft cooling systems (including oil radiators, fuel radiators, and air radiators) are critical components ensuring the normal operation of engines and hydraulic systems. Due to the compact and complex layout of aircraft interiors, radiators are typically installed deep within the engine nacelle, at the wing roots, or in narrow areas on the fuselage belly, often in high positions surrounded by numerous obstacles. Therefore, during routine maintenance, replacement, or troubleshooting, radiators must be removed from their mounting brackets and reinstalled after maintenance is completed.

[0003] During this process, the radiator itself is quite heavy and irregularly shaped, making it impossible for maintenance personnel to move it by hand or hold it suspended in the air for extended periods. To ensure safe and efficient disassembly and assembly, a specialized lifting device must be used to support and position the radiator. An ideal lifting device should be able to flexibly adjust its height and angle, allowing the radiator to precisely align with the installation interface while minimizing the physical strain on maintenance personnel.

[0004] The existing lifting devices lack consideration for workers. During disassembly, workers need to stand at a fixed height, and most of them need to squat to operate. They have to adjust their posture to operate, and maintaining an unnatural posture for a long time to perform high-intensity muscle contractions can lead to occupational diseases such as lumbar muscle strain and shoulder and neck injuries, which seriously affects the team's continuous combat capability and work efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a lifting device for disassembling and assembling radiators during aircraft maintenance. The device has height-adjustable components on both sides of the lifting assembly, allowing workers to adjust the height during disassembly and installation, enabling them to operate while standing and ensuring continuous operational capability and work efficiency.

[0006] The above-mentioned technical objective of the present invention is achieved through the following technical solution: A radiator disassembly and lifting device for aircraft maintenance includes a first support frame, a second support frame, and a lifting assembly. The lower ends of the first and second support frames are provided with first casters. The first and second support frames are detachably mounted on the left and right sides of the lifting assembly, respectively. The first and second support frames are provided with lifting components for raising and lowering the lifting assembly. Steps are provided on the side of the first and second support frames away from the lifting assembly. The upper end of the steps is close to the lifting assembly. Height adjustment components are installed on the upper end of the steps of the first and second support frames. Both the first support frame and the second support frame have movable slots at the upper end of the steps. The height adjustment component includes a foot plate, a first automatic telescopic rod, and a first sliding rod. The foot plate is slidably connected to the movable slot. The first automatic telescopic rod is embedded in the bottom of the movable slot. The output shaft of the first automatic telescopic rod is connected to the lower end of the foot plate. Two first sliding rods are provided and symmetrically installed at the lower end of the foot plate. The lower end of the first sliding rod is inserted into the bottom of the movable slot. The first sliding rod is slidably connected to the first support frame or the second support frame.

[0007] By adopting the above technical solution, the lifting components on the first and second support frames can drive the lifting components to move up and down, thus lifting the radiator. The height adjustment components on the first and second support frames can adjust the height of the footboard and the height of the worker's standing position, allowing the worker to operate while standing, ensuring continuous operational capability and work efficiency.

[0008] A further feature of the present invention is that the bottom of the movable groove extends downward to form a placement groove, and the height adjustment component further includes a protective sleeve and a sealing strip. The protective sleeve is located at the lower end of the foot plate, and when the foot plate moves downward, the protective sleeve can be inserted into the placement groove. The sealing strip is located at the open end of the movable groove, and the sealing strip works in conjunction with the foot plate and the protective sleeve.

[0009] By adopting the above technical solution, the protective sleeve can isolate the lower end of the footplate, preventing workers from being pinched by the footplate and the open end of the movable groove, thus improving safety.

[0010] A further feature of the present invention is that protective plates are vertically provided on both the front and rear sides of the opening of the movable slot and on the side near the lifting assembly, and storage frames are provided on the outer sides of the protective plates on both the front and rear sides.

[0011] By adopting the above technical solution, the protective plate protects the perimeter of the stepping board, ensuring the safe operation of workers, while the storage box facilitates the placement of tools.

[0012] A further configuration of the present invention is as follows: a slot is provided on one side of the first support frame and the second support frame adjacent to each other; the left and right sides of the lifting assembly are respectively engaged in the two slots; a moving groove is provided in the first support frame and the second support frame; a through groove is provided at both ends of the moving groove, communicating with the bottom of the slot; the lifting assembly includes a rotating motor, a lead screw, a slider, an extension block, and a second slide rod; the lead screw is vertically disposed in the moving groove; both ends of the lead screw are rotatably connected to the upper and lower ends of the moving groove; the rotating motor is disposed below the moving groove; the output shaft of the rotating motor is connected to the lead screw; the slider is disposed in the moving groove; the slider and the lead screw are threadedly connected; two second slide rods are provided and symmetrically disposed in the moving groove; the second slide rods and the slider are in sliding engagement; two extension blocks are provided and slidably connected to the two through grooves respectively; one end of the extension block is connected to the slider; the other end of the extension block extends out of the through groove and is detachably connected to the lifting assembly.

[0013] By adopting the above technical solution, after the lifting component is installed on the first support frame and the second support frame, the rotating motor drives the lead screw to rotate, causing the slider to slide up and down, thereby driving the lifting component to slide up and down, so that the lifting component is close to the radiator. After the radiator is removed, the lifting component can also be put down, making it convenient to move to other places for maintenance.

[0014] A further feature of the present invention is that: both the upper and lower ends of the through groove are provided with mounting grooves, each mounting groove is provided with a roller, and a dustproof and waterproof flexible strip is provided in the through groove. The front and rear sides of the flexible strip are slidably connected to the front and rear inner sides of the through groove. One end of the flexible strip is connected to the upper end of the extension block, and the other end of the flexible strip passes through the upper and lower rollers and is connected to the lower end of the extension block.

[0015] By adopting the above technical solution, the flexible belt can roll up and down as the extension block slides, thereby protecting the lead screw.

[0016] A further configuration of the present invention is as follows: the lifting assembly includes a main body, a second universal wheel, a lifting plate, a second automatic telescopic rod, a third slide rod, and several support components. The second universal wheel is located at the lower end of the main body. Positioning grooves are provided on both the left and right sides of the main body, and the extension block can be inserted into the positioning groove. A locking knob for fixing the extension block is provided on the outer side of the main body. The lifting plate is located at the upper end of the main body. The second automatic telescopic rod is embedded in the main body, and the output shaft of the second automatic telescopic rod is connected to the lifting plate. Multiple third slide rods are provided and vertically inserted into the main body. The third slide rods are slidably connected to the main body, and the upper end of the third slide rods is connected to the lifting plate. Several support components are evenly distributed on the lifting plate.

[0017] By adopting the above technical solution, the lifting component mainly adjusts the height of the lifting plate through the second automatic telescopic rod, so as to get close to the radiator and place the radiator on each support component to support the radiator.

[0018] A further configuration of the present invention is as follows: a movable cavity is provided inside the lifting plate, and a plurality of through holes communicating with the movable cavity are evenly provided on the lifting plate; the support assembly includes a vertical rod, a top block, a spring, and a limiting block; the lower end of the vertical rod passes through the through hole and is connected to the limiting block; the vertical rod and the through hole form a sliding fit; the spring is sleeved on the upper end of the vertical rod; the top block is located on the upper end of the vertical rod; the upper end of the spring rests on the top block; and the lower end of the spring rests on the upper end of the lifting plate.

[0019] By adopting the above technical solution, the support component supports the irregular lower end of the radiator by sliding the uprights up and down and by using the elasticity of the spring.

[0020] A further configuration of the present invention is as follows: the lifting plate has a sliding groove above the movable cavity, the support assembly further includes a sliding plate and a third automatic telescopic rod, the sliding plate is horizontally disposed in the sliding groove, the sliding plate has a plurality of pressing holes corresponding to the through hole, the pressing holes are sleeved on the upright, the third automatic telescopic rod is horizontally disposed in the sliding groove, and the output shaft of the third automatic telescopic rod is connected to the sliding plate.

[0021] By adopting the above technical solution, after the support component is pressed onto the radiator, the third automatic telescopic rod is used to push the slide plate, and the pressing holes on the slide plate are used to press the upright, so as to avoid the upright and spring moving up and down slowly during the movement and ensure the stability of the lifting.

[0022] A further feature of the present invention is that: two grooves are provided at both the front and rear ends of the main body, the two grooves are symmetrical, a fourth automatic telescopic rod facing forward and backward is provided in the groove, the fourth automatic telescopic rod is slidably connected to the groove, a fifth automatic telescopic rod is embedded at the lower end of the groove, the output shaft of the fifth automatic telescopic rod is connected to the fourth automatic telescopic rod, the output shaft of the fourth automatic telescopic rod extends to the outside of the groove and is connected to a support rod, the upper end of the support rod is provided with a screw facing forward and backward threadedly connected, the end of the screw away from the main body is provided with a handle, and the end of the screw close to the main body is rotatably connected to a pressing block.

[0023] By adopting the above technical solution, the fourth automatic telescopic rod adjusts the front-to-back distance of the pressing block, the fifth automatic telescopic rod adjusts the height of the pressing block, and by rotating the handle and screw, the front-to-back distance of the pressing block is further adjusted, making it convenient to press the front and back ends of the radiator.

[0024] A further feature of the present invention is that a reinforcing rod is slidably connected to the side of the first support frame near the second support frame, and a fixing groove corresponding to the reinforcing rod is opened on the side of the second support frame near the first support frame, the reinforcing rod can be inserted into the fixing groove, and a fixing knob that cooperates with the reinforcing rod is provided on the second support frame.

[0025] By adopting the above technical solution, the reinforcing rod detachably connects the first support frame and the second support frame, ensuring the stability of the device.

[0026] In summary, the present invention has the following beneficial effects: Firstly, the height adjustment component in this invention can adjust the height of the color plate. Workers can adjust the step plate to the most comfortable standing height according to their own height and the installation position of the radiator through the first automatic telescopic rod, so as to operate in an upright posture, avoiding occupational health problems such as lumbar muscle strain and shoulder and neck injury caused by prolonged squatting or bending over, and significantly improving operating comfort and work efficiency.

[0027] Secondly, the first and second support frames in this invention are detachably connected to the lifting component and are each equipped with casters, so that the device can be used in combination to make large-stroke stable lifting and lowering using the lifting component, or it can be separated and moved separately to make small-range fine adjustments. Moreover, the first and second support frames can also be used independently, ensuring the applicability of this device.

[0028] Thirdly, the lifting assembly in this invention is equipped with multiple independent top blocks supported by springs. These blocks can automatically extend and retract according to the irregular shape of the radiator's bottom, forming an adaptive and close-fitting support. This effectively avoids damage to the radiator fins or shell caused by localized stress concentration. Furthermore, a sliding plate presses and fixes the radiator in place, preventing it from moving up and down during transport. In addition, the multi-directionally adjustable lateral support assembly can clamp and position the radiator from four directions (front, back, left, and right), preventing it from shaking or slipping during assembly and disassembly, thus ensuring operational safety.

[0029] Fourthly, the lifting assembly in this invention employs a screw-slider mechanism, coupled with a guide rod, to ensure the smoothness and positional accuracy of the lifting process. The lifting assembly, in conjunction with the second automatic telescopic rod, allows for separate coarse and fine adjustments, facilitating precise alignment of the radiator with the mounting interface. The flexible strip design at the through-slot effectively prevents dust and debris from entering the moving slot, ensuring the long-term reliable operation of the lifting mechanism. The reinforcing rod design further enhances the structural stability between the two support frames. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2This is a cross-sectional view of the first support frame and the lifting assembly in this invention; Figure 3 This is the present invention. Figure 2 Enlarged view of point A in the middle; Figure 4 This is a cross-sectional view of the height adjustment component in this invention; Figure 5 This is a cross-sectional view of the extension block in this invention; Figure 6 This is a cross-sectional view of the main body of the present invention.

[0031] In the diagram: 1. First support frame; 11. First caster wheel; 12. Step; 13. Movable slot; 14. Placement slot; 15. Protective plate; 16. Storage frame; 17. Reinforcing rod; 2. Second support frame; 21. Slot; 22. Movable slot; 23. Through slot; 24. Mounting slot; 25. Roller; 26. Flexible belt; 27. Fixing slot; 28. Fixing knob; 3. Lifting assembly; 31. Main body; 311. Groove; 312. Fourth automatic telescopic rod; 313. Fifth automatic telescopic rod; 314. Support rod; 315. Screw; 316. Handle; 317. Pressing block; 32. Second caster wheel; 33. Lifting mechanism 331. Plate; 332. Movable cavity; 333. Through hole; 333. Slide groove; 34. Second automatic telescopic rod; 35. Third slide rod; 36. Support assembly; 361. Upright pole; 362. Top block; 363. Spring; 364. Limit block; 365. Slide plate; 366. Third automatic telescopic rod; 367. Pressing hole; 37. Positioning groove; 38. Locking knob; 4. Lifting assembly; 41. Rotating motor; 42. Lead screw; 43. Slider; 44. Extension block; 45. Second slide rod; 5. Height adjustment assembly; 51. Step plate; 52. First automatic telescopic rod; 53. First slide rod; 54. Protective sleeve; 55. Sealing strip. Detailed Implementation

[0032] The present invention will be further described in detail below with reference to the accompanying drawings.

[0033] In the description of this invention, it should be understood that the terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0034] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0035] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; or they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0036] An embodiment of a radiator disassembly and lifting device for aircraft maintenance, such as... Figure 1 As shown, this device is mainly used for the auxiliary assembly and disassembly of large components such as aircraft radiators. The device includes a first support frame 1, a second support frame 2, and a lifting assembly 3. The lower ends of the first and second support frames 1 and 2 are equipped with first casters 11, which facilitate individual and combined movement of the first and second support frames 1 and 2. The first and second support frames 1 and 2 are detachably mounted on the left and right sides of the lifting assembly 3, respectively. Lifting assemblies 4 for raising and lowering the lifting assembly 3 are installed inside the first and second support frames 1 and 2. Steps 12 are provided on the side of the first and second support frames 1 and 2 away from the lifting assembly 3, facilitating access for personnel. The upper end of the steps 12 is close to the lifting assembly 3, and height adjustment components 5 are installed on the upper ends of the steps 12 of the first and second support frames 1 and 2. The lifting assembly 3 supports the radiator, while the height adjustment components 5 adjust the height of the personnel on the first and second support frames 1 and 2.

[0037] like Figure 4 As shown, both the first support frame 1 and the second support frame 2 have movable slots 13 at the upper end of the step 12. The height adjustment component 5 includes a foot plate 51, a first automatic telescopic rod 52, and a first sliding rod 53. The foot plate 51 is slidably connected to the movable slot 13. The first automatic telescopic rod 52 is embedded in the bottom of the movable slot 13, and its output shaft is connected to the lower end of the foot plate 51. Two first sliding rods 53 are symmetrically installed at the lower end of the foot plate 51, and their lower ends are inserted into the bottom of the movable slot 13. The first sliding rods 53 are slidably connected to either the first support frame 1 or the second support frame 2. In use, the first automatic telescopic rod 52 moves the foot plate 51 up and down, allowing the worker to step on the colored plate to adjust the worker's height, facilitating standing operation during disassembly and installation.

[0038] A placement slot 14 extends downwards from the bottom of the movable slot 13. The height adjustment assembly 5 also includes a protective sleeve 54 and a sealing strip 55. The protective sleeve 54 is located at the lower end of the footplate 51. When the footplate 51 moves downwards, the protective sleeve 54 can be inserted into the placement slot 14. The sealing strip 55 is located at the opening end of the movable slot 13 and works in conjunction with the footplate 51 and the protective sleeve 54. Protective plates 15 are vertically installed on the front and rear sides of the opening of the movable slot 13 and on the side near the lifting assembly 3. Storage frames 16 are provided on the outer sides of the protective plates 15 on the front and rear sides. The protective sleeve 54 can prevent the footplate 51 from pinching the staff during the lifting process, while the protective plates 15 can protect the staff. The storage frames 16 can be used to place tools.

[0039] like Figure 2 As shown, in order to achieve stable lifting and lowering of the lifting component 3, a slot 21 is provided on the adjacent side of the first support frame 1 and the second support frame 2. The left and right sides of the lifting component 3 are respectively locked into the two slots 21. The first support frame 1 and the second support frame 2 are provided with a moving groove 22. The front and rear ends of the moving groove 22 are provided with through grooves 23 that connect to the bottom of the slot 21. The lifting component 4 includes a rotating motor 41, a lead screw 42, a slider 43, an extension block 44, and a second sliding rod 45. The lead screw 42 is vertically installed in the moving groove 22, and both the upper and lower ends of the lead screw 42 are rotatably connected to the motor. At the upper and lower ends of the moving groove 22, a rotating motor 41 is located below the moving groove 22, and the output shaft of the rotating motor 41 is connected to a lead screw 42. A slider 43 is located inside the moving groove 22, and the slider 43 is threadedly connected to the lead screw 42. Two second sliding rods 45 are provided and symmetrically arranged in the moving groove 22, forming a sliding fit with the slider 43. Two extension blocks 44 are provided and slidably connected to two through grooves 23 respectively. One end of the extension block 44 is connected to the slider 43, and the other end of the extension block 44 extends out of the through groove 23 and is detachably connected to the lifting assembly 3. By rotating the lead screw 42 driven by the rotating motor 41, the slider 43 is moved up and down, thereby realizing the up and down movement of the lifting assembly 3.

[0040] like Figure 5 As shown, to protect the lifting assembly 4, mounting slots 24 are provided at both the upper and lower ends of the through slot 23. Rollers 25 are installed in each mounting slot 24. A dustproof and waterproof flexible belt 26 is installed inside the through slot 23. The front and rear sides of the flexible belt 26 are slidably connected to the front and rear inner sides of the through slot 23. One end of the flexible belt 26 is connected to the upper end of the extension block 44, and the other end passes through the two rollers 25 and is connected to the lower end of the extension block 44. In this way, no matter where the extension block 44 moves, the flexible belt 26 can always cover the opening of the through slot 23, providing good protection.

[0041] like Figure 2 and Figure 3As shown, the lifting assembly 3 includes a main body 31, second universal wheels 32, a lifting plate 33, a second automatic telescopic rod 34, a third sliding rod 35, and several support components 36. The second universal wheels 32 are located at the lower end of the main body 31. Positioning grooves 37 are provided on both the left and right sides of the main body 31, and extension blocks 44 can be inserted into the positioning grooves 37. A locking knob 38 for fixing the extension blocks 44 is provided on the outer side of the main body 31. The lifting plate 33 is located at the upper end of the main body 31. The second automatic telescopic rod 34 is embedded in the main body 31, and its output shaft is connected to the lifting plate 33. Multiple third sliding rods 35 are vertically inserted into the main body 31 and slidably connected to it. The upper end of each third sliding rod 35 is connected to the lifting plate 33. Several support components 36 are evenly distributed on the lifting plate 33. The lifting assembly 3 uses the second automatic telescopic rod 34 to drive the lifting plate 33 to move up and down, thereby achieving two-stage lifting. Several support components 36 can move up and down to directly contact and support the heat sink.

[0042] The lifting plate 33 has a movable cavity 331 inside, and a plurality of through holes 332 connected to the movable cavity 331 are evenly opened on the lifting plate 33. The support assembly 36 includes a vertical rod 361, a top block 362, a spring 363, and a limiting block 364. The lower end of the vertical rod 361 passes through the through hole 332 and is connected to the limiting block 364. The vertical rod 361 and the through hole 332 form a sliding fit. The spring 363 is sleeved on the upper end of the vertical rod 361. The top block 362 is located on the upper end of the vertical rod 361. The upper end of the spring 363 rests on the top block 362, and the lower end of the spring 363 rests on the upper end of the lifting plate 33. When the radiator is placed on the top block 362 or the support component 36 is pressed on the radiator, each top block 362 will move downward against the elastic force of the spring 363 according to the shape of the bottom of the radiator. Finally, all the top blocks 362 together form a support surface that matches the bottom contour of the radiator, realizing adaptive support and protecting the radiator.

[0043] To lock the top block 362 in place when needed, preventing it from being pressed down, a groove 333 is provided above the movable cavity 331 on the lifting plate 33. The support assembly 36 also includes a sliding plate 365 and a third automatic telescopic rod 366. The sliding plate 365 is horizontally positioned within the groove 333 and has several pressing holes 367 corresponding to the through holes 332. The pressing holes 367 are fitted onto the upright rod 361. The third automatic telescopic rod 366 is horizontally positioned within the groove 333, and its output shaft is connected to the sliding plate 365. Once the top block 362 is in a stable position, the third automatic telescopic rod 366 drives the sliding plate 365 to slide, pressing the upright rod 361 through the pressing holes 367 to fix the upright rod 361 and prevent the radiator from shaking during movement.

[0044] like Figure 6As shown, in order to laterally clamp and position the radiator during disassembly and assembly to prevent it from shaking, two grooves 311 are provided at both the front and rear ends of the main body 31. The two grooves 311 are symmetrical. A fourth automatic telescopic rod 312 facing forward and backward is provided in the groove 311. The fourth automatic telescopic rod 312 is slidably connected to the groove 311. A fifth automatic telescopic rod 313 is embedded at the lower end of the groove 311. The output shaft of the fifth automatic telescopic rod 313 is connected to the fourth automatic telescopic rod 312. The output shaft of the fourth automatic telescopic rod 312 extends to the outside of the groove 311 and is connected to a support rod 314. The upper end of the support rod 314 is threadedly connected to a screw 315 facing forward and backward. The end of the screw 315 away from the main body 31 is provided with a handle 316. The end of the screw 315 close to the main body 31 is rotatably connected to a pressing block 317. The position of the pressing block 317 can be adjusted by the fourth automatic telescopic rod 312 and the fifth automatic telescopic rod 313. Then, by rotating the handle 316 and the screw 315, the position of the pressing block 317 can be further adjusted to press and fix the radiator.

[0045] To enhance the connection stability between the two support frames, especially when the device moves as a whole, a reinforcing rod 17 is slidably connected to the side of the first support frame 1 closest to the second support frame 2. The side of the second support frame 2 closest to the first support frame 1 has a fixing groove 27 corresponding to the reinforcing rod 17. The reinforcing rod 17 can be inserted into the fixing groove 27. The second support frame 2 is provided with a fixing knob 28 that works with the reinforcing rod 17. When the device is assembled, the reinforcing rod 17 can be pulled out from the first support frame 1 and inserted into the fixing groove 27 of the second support frame 2. Finally, it is locked by the fixing knob 28 on the second support frame 2, thereby forming a rigidly connected overall frame.

[0046] In its assembled state, the entire device is moved to the area below the aircraft radiator using the first caster wheel 11. The rotating motor 41 of the lifting assembly 4 is activated, causing the lead screw 42 to drive the slider 43 and the extension block 44 to rise, thereby raising the lifting assembly 3 to its approximate height. Subsequently, the second automatic telescopic rod 34 of the lifting assembly 3 is activated, pushing the lifting plate 33 to rise slowly, causing the top block 362 of the support assembly 36 to contact the bottom of the radiator. During this process, each top block 362 adaptively extends and retracts according to the shape of the radiator bottom, forming a stable support, and then the third automatic telescopic rod 366 secures the upright rod 361. The operator climbs onto the footboard 51 of the height adjustment assembly 5 via the steps 12, and adjusts the footboard 51 to the most comfortable standing height according to their own height and operational needs, thereby performing the assembly and disassembly operations in an upright posture. During disassembly and assembly, the fourth automatic telescopic rod 312 and the fifth automatic telescopic rod 313 can be activated to adjust the lateral pressing block 317 to a suitable position, and the radiator can be clamped and fixed by rotating the handle 316 to prevent it from shaking. When fine adjustments are needed on the ground, the locking knob 38 can be loosened to remove the lifting assembly 3 from the support frame, and it can be moved independently using its own second caster wheel 32.

[0047] This specific embodiment is merely an explanation of the present invention and is not intended to limit the invention. After reading this specification, those skilled in the art can make modifications to this embodiment without contributing any inventive step, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.

Claims

1. A lifting device for disassembling and assembling radiators during aircraft maintenance, characterized in that: The system includes a first support frame (1), a second support frame (2), and a lifting assembly (3). The lower ends of the first support frame (1) and the second support frame (2) are provided with first universal wheels (11). The first support frame (1) and the second support frame (2) are detachably mounted on the left and right sides of the lifting assembly (3). The first support frame (1) and the second support frame (2) are provided with lifting assemblies (4) for raising and lowering the lifting assembly (3). The first support frame (1) and the second support frame (2) are each provided with a step (12) on the side away from the lifting assembly (3). The upper end of the step (12) is close to the lifting assembly (3). The first support frame (1) and the second support frame (2) are equipped with height adjustment assemblies (5) at the upper end of the step (12). The first support frame (1) and the second support frame (2) are both provided with movable slots (13) at the upper end of the steps (12). The height adjustment component (5) includes a foot plate (51), a first automatic telescopic rod (52) and a first sliding rod (53). The foot plate (51) is slidably connected to the movable slot (13). The first automatic telescopic rod (52) is embedded in the bottom of the movable slot (13). The output shaft of the first automatic telescopic rod (52) is connected to the lower end of the foot plate (51). There are two first sliding rods (53) and they are symmetrically installed at the lower end of the foot plate (51). The lower end of the first sliding rod (53) is inserted into the bottom of the movable slot (13). The first sliding rod (53) is slidably connected to the first support frame (1) or the second support frame (2).

2. The radiator disassembly and lifting device for aircraft maintenance according to claim 1, characterized in that: The bottom of the movable groove (13) extends downward to provide a placement groove (14). The height adjustment component (5) also includes a protective sleeve (54) and a sealing strip (55). The protective sleeve (54) is located at the lower end of the foot plate (51). When the foot plate (51) moves downward, the protective sleeve (54) can be inserted into the placement groove (14). The sealing strip (55) is located at the open end of the movable groove (13). The sealing strip (55) works in conjunction with the foot plate (51) and the protective sleeve (54).

3. The radiator disassembly and lifting device for aircraft maintenance according to claim 2, characterized in that: Protective plates (15) are vertically provided on the front and rear sides of the opening of the active slot (13) and on the side near the lifting component (3). Storage frames (16) are provided on the outer side of the protective plates (15) on the front and rear sides.

4. The radiator disassembly and lifting device for aircraft maintenance according to claim 3, characterized in that: The first support frame (1) and the second support frame (2) are provided with a slot (21) on one side adjacent to each other. The left and right sides of the lifting assembly (3) are respectively locked in the two slots (21). The first support frame (1) and the second support frame (2) are provided with a moving groove (22). The front and rear ends of the moving groove (22) are provided with through grooves (23) that connect to the bottom of the slot (21). The lifting assembly (4) includes a rotating motor (41), a lead screw (42), a slider (43), an extension block (44), and a second slide rod (45). The lead screw (42) is vertically installed in the moving groove (22). The upper and lower ends of the lead screw (42) are rotatably connected to the upper and lower ends of the moving groove (22). The rotating motor (41) is located below the moving groove (22). The output shaft of the rotating motor (41) is connected to the lead screw (42). The slider (43) is located in the moving groove (22). The slider (43) and the lead screw (42) form a threaded connection. Two second sliding rods (45) are provided and symmetrically arranged in the moving groove (22). The second sliding rods (45) and the slider (43) form a sliding fit. Two extension blocks (44) are provided and slidably connected to two through grooves (23). One end of the extension block (44) is connected to the slider (43). The other end of the extension block (44) extends out of the through groove (23) and is detachably connected to the lifting assembly (3).

5. The radiator disassembly and lifting device for aircraft maintenance according to claim 4, characterized in that: The upper and lower ends of the through groove (23) are provided with mounting grooves (24), and each mounting groove (24) is provided with rollers (25). The through groove (23) is provided with a flexible belt (26) that is dustproof and waterproof. The front and rear sides of the flexible belt (26) are slidably connected to the front and rear inner sides of the through groove (23). One end of the flexible belt (26) is connected to the upper end of the extension block (44), and the other end of the flexible belt (26) passes through the upper and lower rollers (25) and is connected to the lower end of the extension block (44).

6. The radiator disassembly and lifting device for aircraft maintenance according to claim 5, characterized in that: The lifting assembly (3) includes a main body (31), a second universal wheel (32), a lifting plate (33), a second automatic telescopic rod (34), a third slide rod (35), and several support components (36). The second universal wheel (32) is located at the lower end of the main body (31). Positioning grooves (37) are provided on both the left and right sides of the main body (31). The extension block (44) can be inserted into the positioning groove (37). A locking knob (38) for fixing the extension block (44) is provided on the outer side of the main body (31). A lowering plate (33) is located at the upper end of the main body (31), the second automatic telescopic rod (34) is embedded in the main body (31), the output shaft of the second automatic telescopic rod (34) is connected to the lifting plate (33), multiple third slide rods (35) are provided and vertically inserted into the main body (31), the third slide rods (35) are slidably connected to the main body (31), the upper end of the third slide rods (35) is connected to the lifting plate (33), and several support components (36) are evenly arranged on the lifting plate (33).

7. A radiator disassembly and lifting device for aircraft maintenance according to claim 6, characterized in that: The lifting plate (33) has a movable cavity (331) inside. The lifting plate (33) has several through holes (332) that are evenly connected to the movable cavity (331). The support assembly (36) includes a vertical rod (361), a top block (362), a spring (363), and a limiting block (364). The lower end of the vertical rod (361) passes through the through hole (332) and is connected to the limiting block (364). The vertical rod (361) and the through hole (332) form a sliding fit. The spring (363) is sleeved on the upper end of the vertical rod (361). The top block (362) is located on the upper end of the vertical rod (361). The upper end of the spring (363) rests on the top block (362). The lower end of the spring (363) rests on the upper end of the lifting plate (33).

8. The radiator disassembly and lifting device for aircraft maintenance according to claim 7, characterized in that: The lifting plate (33) has a groove (333) above the movable cavity (331). The support assembly (36) also includes a sliding plate (365) and a third automatic telescopic rod (366). The sliding plate (365) is horizontally arranged in the groove (333). The sliding plate (365) has several pressing holes (367) corresponding to the through hole (332). The pressing holes (367) are sleeved on the upright (361). The third automatic telescopic rod (366) is horizontally arranged in the groove (333). The output shaft of the third automatic telescopic rod (366) is connected to the sliding plate (365).

9. A radiator disassembly and lifting device for aircraft maintenance according to claim 8, characterized in that: The main body (31) has two grooves (311) at both the front and rear ends. The two grooves (311) are symmetrical. A fourth automatic telescopic rod (312) facing forward and backward is provided in the groove (311). The fourth automatic telescopic rod (312) is slidably connected to the groove (311). A fifth automatic telescopic rod (313) is embedded at the lower end of the groove (311). The output shaft of the fifth automatic telescopic rod (313) is connected to the fourth automatic telescopic rod (312). The output shaft of the fourth automatic telescopic rod (312) extends to the outside of the groove (311) and is connected to a support rod (314). The upper end of the support rod (314) is threadedly connected to a screw (315) facing forward and backward. The end of the screw (315) away from the main body (31) is provided with a handle (316). The end of the screw (315) close to the main body (31) is rotatably connected to a pressing block (317).

10. A radiator disassembly and lifting device for aircraft maintenance according to claim 9, characterized in that: The first support frame (1) is slidably connected to a reinforcing rod (17) on the side near the second support frame (2). The second support frame (2) is provided with a fixing groove (27) corresponding to the reinforcing rod (17) on the side near the first support frame (1). The reinforcing rod (17) can be inserted into the fixing groove (27). The second support frame (2) is provided with a fixing knob (28) that works in conjunction with the reinforcing rod (17).

Images