Lifting appliance for engine maintenance

Abstract

The utility model discloses a lifting appliance for engine maintenance, which relates to the technical field of auxiliary equipment for engine maintenance and comprises a mounting frame, a plurality of lifting components, a connecting rod, a rotating component and a plurality of adjustable connecting components, and the lifting components are fixedly connected with the mounting frame; the connecting rod is connected with each lifting assembly; the fixed end of the rotating assembly is installed on the connecting rod. Each adjustable connecting assembly is fixedly connected with the rotating end of the rotating assembly, each adjustable connecting assembly comprises a mounting piece, a self-locking telescopic rod and an electromagnet, the mounting piece is horizontally arranged, one end of the mounting piece is fixedly connected with the rotating end of the rotating assembly, the self-locking telescopic rod is arranged below the mounting piece, and the electromagnet is arranged below the self-locking telescopic rod. The engine lifting appliance has the advantages that the engine lifting appliance is simple in structure and convenient to use, the adaptability of the lifting appliance to engines with different sizes and shapes is effectively improved, meanwhile, a user can conveniently carry out multidirectional maintenance, and the maintenance efficiency and the maintenance quality are effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of engine maintenance auxiliary equipment technology, and in particular to a lifting tool for engine maintenance. Background Technology

[0002] As a core component of modern industry, the engine requires regular inspection or repair when it is damaged during long-term use. Lifting the engine is a common and important operation during engine repair. This not only increases the operating space and facilitates observation of the engine's underside for improved repair results, but also makes it easier to move the engine to the repair platform.

[0003] However, existing engine repair lifting tools have many shortcomings:

[0004] Poor adaptability: The connection position cannot be adjusted according to the size and external shape of the engine, resulting in difficulty or instability in lifting, which can easily damage the engine.

[0005] Inconvenient for maintenance: The engine cannot be turned when it is lifted, which cannot meet the user's need for multi-directional maintenance.

[0006] Therefore, there is an urgent need for an innovative engine repair lifting tool to solve the above problems and improve repair efficiency and quality. Utility Model Content

[0007] The purpose of this utility model is to provide a lifting tool for engine repair to solve the problems existing in the prior art. It has a simple structure, is easy to use, effectively improves the adaptability of the lifting tool to engines of different sizes and shapes, and facilitates multi-directional inspection by users, thereby effectively improving repair efficiency and quality.

[0008] To achieve the above objectives, this utility model provides the following solution:

[0009] This utility model provides a lifting tool for engine maintenance, comprising: a mounting frame, multiple lifting components, a connecting rod, a rotating component, and multiple adjustable connecting components. The mounting frame is movable on the ground and maintains its moved position. The fixed end of each lifting component is fixedly connected to the mounting frame. The connecting rod is fixedly connected to the lifting end of each lifting component and can rise or fall under the drive of each lifting component, maintaining its raised or lowered position. The fixed end of each rotating component is mounted on the connecting rod. Each adjustable connecting component is fixedly connected to the rotating end of the rotating component to rotate under the drive of the rotating component and maintain its rotated position. Each adjustable connecting component includes a mounting piece, a self-locking telescopic rod, and an electromagnet. The mounting piece is horizontally arranged, and one end of the mounting piece is fixedly connected to the rotating end of the rotating component. The self-locking telescopic rod is located below the mounting piece and can slide along the length of the mounting piece, maintaining its slidable position. The electromagnet is located at the bottom end of the self-locking telescopic rod for magnetic connection with the engine.

[0010] Preferably, the mounting frame has a U-shaped structure and includes an integrally connected first support plate, a second support plate, and a third support plate. The first support plate and the third support plate are arranged in parallel. There are two lifting components, which are respectively located in the middle of the first support plate and the third support plate.

[0011] Preferably, the lifting assembly includes a lifting support rod, a self-locking motor, a lifting threaded rod, and a lifting block. The lifting support rod is vertically fixedly connected to the top surface of the mounting frame. The lifting support rod is provided with a vertical lifting slide rail. The lifting threaded rod is disposed within the lifting slide rail, and both ends of the lifting threaded rod are rotatably connected to the lifting support rod. The self-locking motor is fixedly connected to the top end of the lifting support rod, and the output shaft of the self-locking motor is fixedly connected to one end of the lifting threaded rod extending out of the lifting slide rail. The lifting block is slidably connected within the lifting slide rail, and the lifting block is provided with a first threaded hole for threaded connection with the lifting threaded rod. The lifting block is fixedly connected to the connecting rod.

[0012] Preferably, the rotating assembly includes a control motor, a driving bevel gear, a driven bevel gear, and a rotating rod. The control motor is fixedly connected to the top surface of the connecting rod, the driving bevel gear is fixedly connected to the output shaft of the control motor, the driven bevel gear meshes with the driving bevel gear, the rotating rod is rotatably connected to the connecting rod, and the top end of the rotating rod is fixedly connected to the driven bevel gear, while the bottom end of the rotating rod is fixedly connected to the adjustable connecting assembly.

[0013] Preferably, it further includes a planar bearing, which is mounted on the connecting rod, and the rotating rod is rotatably connected to the connecting rod through the planar bearing.

[0014] Preferably, the number of adjustable connecting components is four, and the four adjustable connecting components are evenly arranged in the circumferential direction of the rotating rod.

[0015] Preferably, the adjustable connection assembly further includes a stepper motor, an adjusting threaded rod, and a sliding block. The bottom surface of the mounting component is provided with a sliding groove. The adjusting threaded rod is disposed in the sliding groove and its two ends are rotatably connected to the mounting component. The stepper motor is fixedly connected to the end of the mounting component away from the rotating rod and is also fixedly connected to the end of the adjusting threaded rod extending out of the sliding groove. The sliding block is slidably connected in the sliding groove and is provided with a second threaded hole, which is threadedly connected to the adjusting threaded rod.

[0016] Preferably, the adjustable connection assembly further includes a connecting rope, one end of which is fixedly connected to the bottom end of the self-locking telescopic rod, and the other end is fixedly connected to the electromagnet.

[0017] Preferably, the mounting also includes a plurality of casters, which are mounted on the bottom of the mounting frame.

[0018] The present invention achieves the following technical advantages over the prior art:

[0019] This utility model provides a lifting tool for engine maintenance. The mounting frame is movable yet can be fixed in position, a feature that allows the lifting tool to quickly reach the engine location and maintain stability during lifting operations, preventing accidental movement from affecting lifting safety and accuracy. The connection between the connecting rod and the lifting assembly accurately transmits lifting power, enabling the connecting rod and other connected components, along with the engine, to achieve stable lifting and lowering, meeting different working height requirements and maintaining a stable position at the desired height for subsequent operations. Fixing the rotating assembly to the connecting rod allows the rotating assembly to operate stably with the connecting rod as a support point, providing a stable power source for driving the adjustable connecting assembly and engine rotation, ensuring reliable rotation. The connection between the adjustable connecting assembly and the rotating assembly allows the engine to rotate under the drive of the rotating assembly, meeting multi-directional maintenance needs. The sliding connection and position holding function of the self-locking telescopic rod and the mounting component, as well as the magnetic connection between the electromagnet and the engine, facilitate adjustment of the connection position and height according to the engine size and shape, enhancing the adaptability of the lifting tool to different engines and improving the stability and accuracy of lifting. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 A schematic diagram of the overall structure of the engine repair lifting tool provided by this utility model;

[0022] Figure 2 A schematic diagram showing the connection between the mounting frame and the lifting assembly in the engine repair hoist provided by this utility model;

[0023] Figure 3 A half-sectional view of the rotating component in the engine repair hoist provided by this utility model;

[0024] Figure 4 A half-sectional view of the adjustable connecting assembly in the engine repair lifting tool provided by this utility model;

[0025] Figure 5 A partial structural diagram of the adjustable connecting component in the engine repair lifting tool provided by this utility model.

[0026] In the diagram: 1. Mounting frame; 2. Fuma wheel; 3. Lifting assembly; 301. Lifting support rod; 302. Self-locking motor; 303. Lifting threaded rod; 304. Lifting block; 4. Rotating assembly; 401. Connecting rod; 402. Rotating rod; 403. Driven bevel gear; 404. Surface bearing; 405. Control motor; 406. Driving bevel gear; 5. Adjustable connecting assembly; 501. Mounting part; 502. Sliding groove; 503. Stepper motor; 504. Adjusting threaded rod; 505. Sliding block; 506. Self-locking telescopic rod; 507. Connecting rope; 508. Electromagnet. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] The purpose of this utility model is to provide a lifting tool for engine repair to solve the problems existing in the prior art. It has a simple structure, is easy to use, effectively improves the adaptability of the lifting tool to engines of different sizes and shapes, and facilitates multi-directional inspection by users, thereby effectively improving repair efficiency and quality.

[0029] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] This utility model provides a lifting tool for engine repair, such as... Figures 1-5 As shown, the assembly includes: a mounting frame 1, multiple lifting components 3, a connecting rod 401, a rotating component 4, and multiple adjustable connecting components 5. The mounting frame 1 can move on the ground and maintain its position after movement. The fixed end of the lifting component 3 is fixedly connected to the mounting frame 1. The connecting rod 401 is fixedly connected to the lifting end of each lifting component 3 and can rise or fall under the drive of each lifting component 3 and maintain its position after lifting. The fixed end of the rotating component 4 is mounted on the connecting rod 401. Each adjustable connecting component 5 is fixedly connected to the rotating end of the rotating component 4. The adjustable connecting component 5, driven by the rotating assembly 4, rotates and maintains its rotated position. It includes a mounting component 501, a self-locking telescopic rod 506, and an electromagnet 508. The mounting component 501 is horizontally positioned, with one end fixedly connected to the rotating end of the rotating assembly 4. The self-locking telescopic rod 506 is positioned below the mounting component 501 and can slide along its length, maintaining its slidable position. The electromagnet 508 is located at the bottom of the self-locking telescopic rod 506 for magnetic connection with the engine. The mounting frame 1 is movable yet can be fixed in position, facilitating rapid access to the engine and ensuring stability during lifting operations, preventing accidental movement from affecting lifting safety and accuracy. The connection between the connecting rod 401 and the lifting assembly 3 accurately transmits lifting power, enabling the connecting rod 401 and its connected components, along with the engine, to achieve stable lifting, meeting different working height requirements, and maintaining a stable position at the desired height for subsequent operations. The rotating assembly 4 is fixed to the connecting rod 401, enabling it to operate stably with the connecting rod 401 as a support point. This provides a stable power source for driving the adjustable connecting assembly 5 and the engine, ensuring reliable rotation. The connection between the adjustable connecting assembly 5 and the rotating assembly 4 allows the engine to rotate under the drive of the rotating assembly 4, meeting multi-directional maintenance needs. The sliding connection and position holding function between the self-locking telescopic rod 506 and the mounting piece 501, as well as the magnetic connection between the electromagnet 508 and the engine, facilitate adjustments to the connection position and height according to the engine's size and shape, enhancing the adaptability of the lifting tool to different engines and improving the stability and accuracy of lifting operations.

[0031] In a preferred embodiment, the mounting frame 1 has a U-shaped structure and includes an integrally connected first support plate, a second support plate, and a third support plate. The first and third support plates are arranged in parallel. There are two lifting components 3, each positioned in the middle of the first and third support plates. The U-shaped mounting frame 1 enhances the overall structural stability and load-bearing capacity, while the integrally connected support plates ensure the structural integrity and strength. The two lifting components 3 are symmetrically positioned in the middle of the parallel support plates, enabling more even and stable lifting of the connecting rod 401 and related components, preventing tilting during hoisting and ensuring stable lifting of the engine.

[0032] In a preferred embodiment, the lifting assembly 3 includes a lifting support rod 301, a self-locking motor 302, a lifting threaded rod 303, and a lifting block 304. The lifting support rod 301 is vertically fixed to the top surface of the mounting frame 1. The lifting support rod 301 is provided with a vertical lifting slide rail. The lifting threaded rod 303 is disposed within the lifting slide rail, and both ends of the lifting threaded rod 303 are rotatably connected to the lifting support rod 301. The self-locking motor 302 is fixedly connected to the top end of the lifting support rod 301, and the output shaft of the self-locking motor 302 is... The lifting threaded rod 303 extends out of the lifting slide rail and is fixedly connected at one end. The lifting block 304 is slidably connected within the lifting slide rail, and the lifting block 304 is provided with a first threaded hole for threaded connection with the lifting threaded rod 303. The lifting block 304 is fixedly connected to the connecting rod 401. The lifting assembly 3 drives the lifting threaded rod 303 to rotate via a self-locking motor 302, and uses threaded transmission to drive the lifting block 304 to rise and fall smoothly within the lifting slide rail. The vertically fixed lifting support rod 301 provides stable support for the entire lifting process. The accurate threaded connection and sliding connection ensure the precision and stability of the lifting, ensuring that the connecting rod 401 and the connected motor can achieve smooth and accurate lifting movements.

[0033] In a preferred embodiment, the rotating assembly 4 includes a control motor 405, a driving bevel gear 406, a driven bevel gear 403, and a rotating rod 402. The control motor 405 is fixedly connected to the top surface of the connecting rod 401. The driving bevel gear 406 is fixedly connected to the output shaft of the control motor 405. The driven bevel gear 403 meshes with the driving bevel gear 406. The rotating rod 402 is rotatably connected to the connecting rod 401, and the top end of the rotating rod 402 is fixedly connected to the driven bevel gear 403. The bottom end of the rotating rod 402 is fixedly connected to the adjustable connecting assembly 5. The control motor 405 can precisely transmit power to the rotating rod 402 through the meshing of the driving bevel gear 406 and the driven bevel gear 403, thereby driving the adjustable connecting assembly 5 connected to the bottom end of the rotating rod 402 and the engine to rotate. The fixed connection method of each component ensures the stability and reliability of the transmission process, making the engine rotate smoothly and controllably.

[0034] In a preferred embodiment, a planar bearing 404 is also included. The planar bearing 404 is mounted on the connecting rod 401. The rotating rod 402 is rotatably connected to the connecting rod 401 through the planar bearing 404. The planar bearing 404 reduces the friction between the rotating rod 402 and the connecting rod 401, allowing the rotating rod 402 to rotate more smoothly on the connecting rod 401, improving the flexibility and efficiency of rotation, and extending the service life of the rotating components.

[0035] In a preferred embodiment, there are four adjustable connecting components 5, which are evenly arranged in the circumferential direction of the rotating rod 402. This arrangement allows the engine to be connected and supported from multiple angles, improving the stability of the connection, ensuring that the engine is subjected to uniform force during hoisting and rotation, reducing swaying and offset, and further enhancing the stable clamping of the engine.

[0036] In a preferred embodiment, the adjustable connection assembly 5 further includes a stepper motor 503, an adjusting threaded rod 504, and a sliding block 505. The bottom surface of the mounting member 501 is provided with a sliding groove 502. The adjusting threaded rod 504 is disposed in the sliding groove 502 and both ends of the adjusting threaded rod 504 are rotatably connected to the mounting member 501. The stepper motor 503 is fixedly connected to the end of the mounting member 501 away from the rotating rod 402, and the stepper motor 503 is fixedly connected to the end of the adjusting threaded rod 504 that extends out of the sliding groove 502. The sliding block 505 is slidably connected in the sliding groove 502 and is provided with a second threaded hole. The second threaded hole is threadedly connected to the adjusting threaded rod 504. The stepper motor 503 can drive the adjusting threaded rod 504 to rotate, and through the threaded connection, drive the sliding block 505 to slide in the sliding groove 502, thereby achieving precise adjustment of the position of the self-locking telescopic rod 506, and thus adjusting the position of the electromagnet 508. This precise position adjustment function further enhances the spreader's adaptability to engines of different sizes and shapes, meeting diverse lifting needs.

[0037] In a preferred embodiment, the adjustable connection assembly 5 further includes a connecting rope 507. One end of the connecting rope 507 is fixedly connected to the bottom end of the self-locking telescopic rod 506, and the other end is fixedly connected to the electromagnet 508. The connecting rope 507 ensures a reliable connection between the self-locking telescopic rod 506 and the electromagnet 508. During the adjustment of the position and height of the electromagnet 508, it can accurately transmit force. At the same time, it provides a flexible connection for the electromagnet 508 during hoisting, avoiding the risk of damage that may be caused by rigid connection, and ensuring a stable magnetic connection between the electromagnet 508 and the engine.

[0038] In a preferred embodiment, a plurality of casters 2 are also included. The casters 2 are installed at the bottom of the mounting frame 1. The multiple casters 2 installed at the bottom of the mounting frame 1 facilitate the flexible movement of the lifting device on the ground and can easily change the position of the lifting device to align with the lifting position of the engine. At the same time, during the lifting process, the casters 2 can restrict movement by adjusting the mode, while also providing good support for the mounting frame 1, thereby improving the convenience and flexibility of the overall operation.

[0039] The method of using the engine repair lifting tool involved in the above patent is as follows:

[0040] Preparation:

[0041] Move the spreader to the engine repair site, and use the bottom-mounted wheel 2 to easily push the mounting frame 1 to bring the spreader to a suitable position near the engine, ensuring that the mounting frame 1 is fixed and stable.

[0042] Based on the size and shape of the engine, the connection position and height of electromagnet 508 are preliminarily estimated.

[0043] Adjust the connection position and height:

[0044] Start the stepper motor 503 in the adjustable connection assembly 5. The stepper motor 503 drives the adjusting threaded rod 504 to rotate. Since the sliding block 505 is threadedly connected to the adjusting threaded rod 504, the sliding block 505 slides along the length of the mounting part 501 in the sliding groove 502 on the bottom surface of the mounting part 501, thereby driving the self-locking telescopic rod 506, the connecting rope 507 and the electromagnet 508 to adjust their positions.

[0045] To adjust the height of the electromagnet 508, the self-locking telescopic rod 506 can be extended or retracted. The connecting rope 507 then raises or lowers the electromagnet 508, allowing it to reach a suitable height and position to accommodate the engine's size and shape. Once adjusted to the appropriate position, the self-locking telescopic rod 506 remains in its current position.

[0046] The 508 electromagnet is used to magnetically connect to the engine, ensuring a firm and reliable connection.

[0047] Lift the engine:

[0048] Start the self-locking motor 302 in the lifting assembly 3. The self-locking motor 302 drives the lifting threaded rod 303 to rotate. The lifting block 304, which is threadedly connected to the lifting threaded rod 303, rises in the lifting slide rail of the lifting support rod 301. Since the connecting rod 401 is fixedly connected to the lifting block 304, the rise of the lifting block 304 drives the connecting rod 401, the rotating assembly 4 connected to the connecting rod 401, the adjustable connecting assembly 5, and the engine to rise together, lifting the engine to the required maintenance height.

[0049] During the engine's ascent, observe its condition to ensure a smooth ascent without any shaking or abnormalities. Once the predetermined height is reached, the self-locking motor 302 stops operating, and the lifting block 304 remains in its current position, maintaining the engine's height.

[0050] Comprehensive engine overhaul:

[0051] Once the engine is hoisted to a suitable height and its position is stable, the control motor 405 in the rotating assembly 4 is activated. The control motor 405 drives the active bevel gear 406 to rotate, and the active bevel gear 406 meshes with the driven bevel gear 403, driving the driven bevel gear 403 and the rotating rod 402 fixedly connected to it to rotate.

[0052] The rotation of the rotating rod 402 drives the rotation of multiple adjustable connecting components 5 fixed at its bottom, which in turn drives the engine, which is magnetically connected to the electromagnet 508, to rotate. Users can observe and inspect the engine from different directions, facilitating the identification of potential problems in different parts of the engine.

[0053] After the repair is completed, the following steps should be taken:

[0054] After maintenance, first lower the engine. Then, reverse the start of the self-locking motor 302 in the lifting assembly 3, causing the lifting threaded rod 303 to reverse. The lifting block 304 descends within the lifting slide rail, gradually lowering the engine to a suitable position on the ground. Then, stop the self-locking motor 302.

[0055] Demagnetize electromagnet 508, disconnect it from the engine, and remove the lifting device from the maintenance site.

[0056] If the lifting rig needs to be stored for a long period of time, check that all components are in their correct positions, store it in a suitable environment, and perform regular maintenance and upkeep to ensure that all parts are in good condition for the next use.

[0057] This utility model uses specific examples to illustrate its principles and implementation methods. The above description of the embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the idea of ​​this utility model. In summary, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A lifting tool for engine repair, characterized in that: include: Mounting frame, which is movable on the ground and maintains its moved position; Multiple lifting components, the fixed end of which is fixedly connected to the mounting frame; A connecting rod is fixedly connected to the lifting end of each of the lifting components and can rise or fall under the drive of each of the lifting components and maintain the position after rising or falling. A rotating assembly, wherein the fixed end of the rotating assembly is mounted on the connecting rod; Multiple adjustable connecting components are provided, each of which is fixedly connected to the rotating end of the rotating component to rotate under the drive of the rotating component and maintain the rotated position. Each adjustable connecting component includes a mounting member, a self-locking telescopic rod, and an electromagnet. The mounting member is horizontally arranged, and one end of the mounting member is fixedly connected to the rotating end of the rotating component. The self-locking telescopic rod is located below the mounting member and can slide along the length of the mounting member and maintain the slidable position. The electromagnet is located at the bottom end of the self-locking telescopic rod for magnetic connection with the engine.

2. The engine repair lifting tool according to claim 1, characterized in that: The mounting frame has a U-shaped structure and includes an integrally connected first support plate, a second support plate, and a third support plate. The first support plate and the third support plate are arranged in parallel. There are two lifting components, which are respectively located in the middle of the first support plate and the third support plate.

3. The engine repair lifting tool according to claim 2, characterized in that: The lifting assembly includes a lifting support rod, a self-locking motor, a lifting threaded rod, and a lifting block. The lifting support rod is vertically fixed to the top surface of the mounting frame and is provided with a vertical lifting slide rail. The lifting threaded rod is disposed within the lifting slide rail, and both ends of the lifting threaded rod are rotatably connected to the lifting support rod. The self-locking motor is fixedly connected to the top end of the lifting support rod, and the output shaft of the self-locking motor is fixedly connected to one end of the lifting threaded rod extending out of the lifting slide rail. The lifting block is slidably connected within the lifting slide rail and is provided with a first threaded hole for threaded connection with the lifting threaded rod. The lifting block is fixedly connected to the connecting rod.

4. The engine repair lifting tool according to claim 3, characterized in that: The rotating assembly includes a control motor, a driving bevel gear, a driven bevel gear, and a rotating rod. The control motor is fixedly connected to the top surface of the connecting rod. The driving bevel gear is fixedly connected to the output shaft of the control motor. The driven bevel gear meshes with the driving bevel gear. The rotating rod is rotatably connected to the connecting rod, and the top end of the rotating rod is fixedly connected to the driven bevel gear. The bottom end of the rotating rod is fixedly connected to the adjustable connecting assembly.

5. The engine repair lifting tool according to claim 4, characterized in that: It also includes a planar bearing, which is mounted on the connecting rod, and the rotating rod is rotatably connected to the connecting rod through the planar bearing.

6. The engine repair lifting tool according to claim 5, characterized in that: The number of adjustable connecting components is four, and the four adjustable connecting components are evenly arranged in the circumferential direction of the rotating rod.

7. The engine repair lifting tool according to claim 6, characterized in that: The adjustable connection assembly further includes a stepper motor, an adjusting threaded rod, and a sliding block. The bottom surface of the mounting component is provided with a sliding groove. The adjusting threaded rod is disposed in the sliding groove and its two ends are rotatably connected to the mounting component. The stepper motor is fixedly connected to the end of the mounting component away from the rotating rod and is also fixedly connected to the end of the adjusting threaded rod extending out of the sliding groove. The sliding block is slidably connected in the sliding groove and is provided with a second threaded hole, which is threadedly connected to the adjusting threaded rod.

8. The engine repair lifting tool according to claim 7, characterized in that: The adjustable connection assembly also includes a connecting rope, one end of which is fixedly connected to the bottom end of the self-locking telescopic rod, and the other end is fixedly connected to the electromagnet.

9. The engine repair lifting tool according to claim 1, characterized in that: It also includes multiple casters, which are mounted on the bottom of the mounting frame.

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