A mobile lifting system and method for amphibian vehicle maintenance operations

Abstract

The application discloses a mobile lifting system and method for maintenance operation of an amphibious vehicle, and belongs to the technical field of tools for amphibious vehicles, and comprises a supporting component, a connecting pull rod and two lifting components. The supporting component comprises a front wedge-shaped cross beam and a rear wedge-shaped cross beam, and the front wedge-shaped cross beam and the rear wedge-shaped cross beam are respectively provided with a first supporting part and a second supporting part matched with two ends of a boat-shaped bottom of a boat-shaped vehicle body. The two ends of the connecting pull rod are respectively detachably connected with the front wedge-shaped cross beam and the rear wedge-shaped cross beam. The driving ends of the two lifting components are respectively detachably connected with the front wedge-shaped cross beam and the rear wedge-shaped cross beam, so that the boat-shaped vehicle body is lifted by lifting the front wedge-shaped cross beam and the rear wedge-shaped cross beam. The system is small in size, light in weight, convenient to carry with the vehicle, and can be used for maintenance of wheels and suspensions of amphibious vehicles on land, and can be used for dragging the vehicle out of water for maintenance when the amphibious vehicle has a water fault.

Description

Technical Field

[0001] This invention relates to the field of tools for amphibious vehicles, and in particular to a mobile lifting system and method for maintenance operations of amphibious vehicles. Background Technology

[0002] Amphibious vehicles are special vehicles that can travel on both land and water. Due to their multiple functions, amphibious vehicles have more specialized equipment than ordinary vehicles. In addition, amphibious vehicles generally have a boat-shaped watertight hull structure. Therefore, the maintenance equipment and operating procedures for amphibious vehicles are different from those for ordinary vehicles. The current common solution is to use a crane to lift and transfer amphibious vehicles when they are anchored on land, and to use a dock or support structure for maintenance when they are anchored on water and cannot be brought ashore, drawing on ship repair methods.

[0003] Patent CN112897391A discloses an amphibious vehicle lifting system and method. The system adopts a hydraulic scissor lifting mechanism and is equipped with a two-stage scissor lifting mechanism for lifting the hull and wheels separately. It is mainly suitable for fixed sites such as repair shops to carry out whole vehicle maintenance work on amphibious vehicles. However, it is large in size and weight, and is not easy to move. It is mainly used in fixed sites such as repair shops in conjunction with a crane. It is not suitable for roadside on-site maintenance in the wild or for lifting vehicles off the water and moving them to the shore for maintenance in natural water environments.

[0004] For scenarios where amphibious vehicles break down in water, common solutions include using large cranes to lift the amphibious vehicles and transfer them to transport trailers, or using dock support frames to repair the amphibious vehicles that have broken down in the water. These solutions all have the disadvantages of using large equipment, occupying a lot of equipment resources, taking a long time, and having limited functions. They cannot be used as onboard tools and cannot solve both land-based and water-based vehicle malfunction repair problems at the same time. Summary of the Invention

[0005] The purpose of this invention is to overcome the above-mentioned technical deficiencies and propose a mobile lifting system and method for the maintenance of amphibious vehicles. The system is small in size, light in weight, and easy to carry with the vehicle. It can be used for the maintenance of amphibious vehicles on land, such as wheel suspension systems, and can also be used to pull the amphibious vehicle out of the water for maintenance when it has a water-related malfunction.

[0006] To achieve the above-mentioned technical objectives, the present invention provides a mobile lifting system and method for maintenance operations of amphibious vehicles.

[0007] On one hand, the present invention provides a mobile lifting system for maintenance operations of amphibious vehicles, comprising:

[0008] The support component includes a front wedge-shaped crossbeam and a rear wedge-shaped crossbeam, and the front wedge-shaped crossbeam and the rear wedge-shaped crossbeam respectively have a first support part and a second support part for matching and connecting with the two ends of the boat-shaped bottom of the boat-shaped vehicle body;

[0009] The connecting rod is detachably connected to the front wedge-shaped crossbeam and the rear wedge-shaped crossbeam at both ends.

[0010] Two lifting components, the support ends of which are detachably connected to the front wedge crossbeam and the rear wedge crossbeam respectively, so as to lift the boat-shaped vehicle body by raising the front wedge crossbeam and the rear wedge crossbeam respectively.

[0011] The mobile lifting system for amphibious vehicle maintenance operations has two operating states. In the first state, the two lifting components are connected to the front and rear wedge beams respectively for lifting the vehicle on land. In the second state, both lifting components are separated from the front and rear wedge beams, which are connected by connecting rods, allowing the system to be used to lift the vehicle by securing it to the bottom of the vehicle in the water using tools.

[0012] In some embodiments, both the front wedge-shaped crossbeam and the rear wedge-shaped crossbeam include:

[0013] Bottom crossbar;

[0014] The wedge-shaped pads are located above the bottom crossbeam. Both the front and rear wedge-shaped crossbeams include two wedge-shaped pads. The two wedge-shaped pads are arranged opposite each other and their upper sides extend upwards from one end to the other to form a matching opening between the two wedge-shaped pads. The wedge-shaped pads are rotatably mounted on the bottom crossbeam and the two are fixed by bolts.

[0015] In some embodiments, the side of the bottom crossbar is provided with a connection port for connecting to the connecting rod at a position corresponding to the connecting rod. A locking pin is also provided at the connection port. One end of the connecting rod passes through the connection port, and a plurality of connecting grooves are provided on one side of its end. The locking pin connects the bottom crossbar and one of the connecting grooves.

[0016] In some embodiments, two connecting rods are provided, which are arranged side by side on both sides between the front wedge beam and the rear wedge beam. Each connecting rod includes multiple connecting rods, and adjacent connecting rods are connected by sleeve butt joints.

[0017] In some embodiments, the lifting components include jacks located below the supporting components, with their top supporting ends connected to the front or rear wedge beams.

[0018] In some embodiments, both ends of the front wedge beam and the rear wedge beam are provided with trailer wheels, and the trailer wheels are detachably connected to the front wedge beam or the rear wedge beam.

[0019] On the other hand, the present invention also provides a mobile lifting method for amphibious vehicle maintenance operations, applicable to the aforementioned mobile lifting system for amphibious vehicle maintenance operations, including a land-based fault handling method and a water-based fault handling method, wherein the land-based fault handling method includes the following steps:

[0020] S11. Bring the amphibious vehicle to a complete stop and engage the parking brake.

[0021] S12. Place the front wedge beam and / or the rear wedge beam at the designated position on the boat-shaped body of the amphibious vehicle, and use tools to secure the front wedge beam and / or the rear wedge beam to the amphibious vehicle.

[0022] S13. Place the two lifting components in the middle of the front wedge beam and the rear wedge beam respectively, crank the handle to lift the wheels of the amphibious vehicle, and after the wheels are off the ground, use wooden blocks to raise and support the front wedge beam and / or the rear wedge beam.

[0023] S14. Carry out maintenance work;

[0024] Methods for handling maritime malfunctions include:

[0025] S21. Turn off the engine of the amphibious vehicle with a malfunction and tow it to the shore.

[0026] S22. Install trailer wheels on the front and rear wedge beams respectively;

[0027] S23. Use connecting rods to connect the front wedge beam and the rear wedge beam;

[0028] S24. Submerge the front and rear wedge beams in the water and place them at the designated positions on the amphibious vehicle's boat-shaped body. Use tools to secure the front and rear wedge beams to the vehicle body.

[0029] S25. Tow the vehicle out of the water for repair work.

[0030] Compared with the prior art, the beneficial effects of the present invention include: by setting up a support component, a connecting rod and two lifting components, the device can have two usage states. It can be used for amphibious vehicles to repair wheel suspension and other systems on land, and it can also be used to pull the amphibious vehicle out of the water for repair when it malfunctions while driving on water, thus achieving multiple uses.

[0031] The overall system of this invention is small in size, light in weight, easy to assemble and disassemble, and easy to carry in vehicles, which greatly improves the maintenance support of amphibious vehicles and is an essential tool for amphibious vehicles; it is simple and practical to operate, and greatly reduces the maintenance preparation time of amphibious vehicles. Attached Figure Description

[0032] Figure 1 This is a three-dimensional structural schematic diagram of an embodiment of the mobile lifting system for maintenance operations of amphibious vehicles provided by the present invention;

[0033] Figure 2 This is a schematic diagram of the vehicle land maintenance mode structure of the mobile lifting system for amphibious vehicle maintenance operations provided by the present invention.

[0034] Figure 3 This is a schematic diagram of the front wedge-shaped crossbeam of the mobile lifting system for amphibious vehicle maintenance operations provided by the present invention in the waterborne maintenance mode.

[0035] Figure 4 This is a schematic diagram of the structure of the rear wedge-shaped crossbeam of the mobile lifting system for amphibious vehicle maintenance operation provided by the present invention in the waterborne maintenance mode.

[0036] Figure 5 yes Figure 1 Flowchart of the land-based fault handling method for the mobile lifting method used in amphibious vehicle maintenance operations;

[0037] Figure 6 yes Figure 1 The flowchart of the waterborne fault handling method for the mobile lifting method used in the maintenance operation of amphibious vehicles.

[0038] In the diagram: 1. Support component; 11. Front wedge-shaped crossbeam; 111. Bottom crossbeam; 112. Wedge-shaped pad; 113. Matching port; 114. Connection port; 12. Rear wedge-shaped crossbeam; 13. Trailer wheel; 14. Wooden block;

[0039] 2. Connecting rod; 21. Connecting rod; 22. Sleeve; 23. Locking pin;

[0040] 3. Lifting components; 31. Horizontal jacks; 5. Amphibious vehicles. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0042] This invention provides a mobile lifting system and method for maintenance operations of amphibious vehicles, which will be described below.

[0043] Combination Figure 1 As shown, a specific embodiment of the present invention discloses a mobile lifting system for maintenance operations of amphibious vehicles, including a support component 1, a connecting rod 2, and two lifting components 3.

[0044] The support component 1 includes a front wedge-shaped crossbeam 11 and a rear wedge-shaped crossbeam 12. The front wedge-shaped crossbeam 11 and the rear wedge-shaped crossbeam 12 are respectively installed at both ends of the boat-shaped bottom of the boat-shaped vehicle body and match the two ends of the boat-shaped bottom of the boat-shaped vehicle body.

[0045] The two ends of the connecting rod 2 are detachably connected to the front wedge-shaped crossbeam 11 and the rear wedge-shaped crossbeam 12, respectively.

[0046] The drive ends of the two lifting components 3 are detachably connected to the front wedge beam 11 and the rear wedge beam 12, respectively, so as to lift the boat-shaped vehicle body by raising the front wedge beam 11 and the rear wedge beam 12 respectively.

[0047] The mobile lifting system for amphibious vehicle maintenance operations has two operating states. In the first state, the two lifting components 3 are respectively connected to the front wedge beam 11 and the rear wedge beam 12, allowing the vehicle to be lifted on land by raising the front wedge beam 11 and the rear wedge beam 12. In the second state, both lifting components 3 are separated from the front wedge beam 11 and the rear wedge beam 12. The front wedge beam 11 and the rear wedge beam 12 are connected by a connecting rod 2, allowing the front wedge beam 11 and the rear wedge beam 12 to fit snugly against the bottom of the vehicle. The system can be used to lift the vehicle by securing it to the bottom of the vehicle in the water with a tool such as a rope, connecting rod, or fixed bracket.

[0048] This device includes a front wedge-shaped crossbeam 11 and a rear wedge-shaped crossbeam 12 that match the two ends of the boat-shaped bottom of the amphibious vehicle body. In use, the front wedge-shaped crossbeam 11 and the rear wedge-shaped crossbeam 12 can be stably installed at both ends of the boat-shaped bottom of the amphibious vehicle body. When the amphibious vehicle 5 breaks down on land and needs repair, the device is adjusted to its first state, and the corresponding support component 1 can be placed at a designated position on the amphibious vehicle's boat-shaped body. When repair of the front or rear axle wheel suspension is required, the corresponding lifting component 3 is used to lift the corresponding front wedge-shaped crossbeam 11 or rear wedge-shaped crossbeam 12. The device can be raised to lift the corresponding position of the amphibious vehicle 5, making it suitable for use in land-based maintenance of the amphibious vehicle 5. When the amphibious vehicle 5 is stranded on the water and cannot go ashore, the device is adjusted to the second state. The connecting rod 2 is used to connect the front wedge beam 11 and the rear wedge beam 12. The front wedge beam 11 and the rear wedge beam 12 are set at the designated positions on the amphibious vehicle's boat-shaped body and fixed with tools. At this time, the vehicle can be towed out of the water for maintenance work, so that the device can also be used for towing the amphibious vehicle 5 on the water.

[0049] like Figure 1 As shown, in some embodiments, both the front wedge-shaped crossbeam 11 and the rear wedge-shaped crossbeam 12 include a bottom crossbeam 111 and a wedge-shaped pad 112. The wedge-shaped pad 112 is located above the bottom crossbeam 111, and its upper side is provided with a matching port 113 that matches the front or rear end of the boat-shaped bottom of the boat-shaped vehicle body. In use, the bottom crossbeam 111 is placed on the front or rear end of the boat-shaped bottom of the boat-shaped vehicle body, and the wedge-shaped pad 112 on the bottom crossbeam 111 can fit with the bottom of the vehicle body, so that it can be stably supported under the vehicle body.

[0050] In one embodiment, both the front wedge-shaped crossbeam 11 and the rear wedge-shaped crossbeam 12 include two wedge-shaped pads 112. The two wedge-shaped pads 112 are arranged opposite each other and their upper sides extend upwards from one end to the other, so that a matching port 113 for connecting with the amphibious vehicle 5 is formed between the two wedge-shaped pads 112. The top of each of the two wedge-shaped pads 112 is provided with a slope. Depending on the shape and specifications of the two ends of the bottom of the different amphibious vehicles 5, the slope can be set as a plane or a downwardly concave arc surface to improve the tightness of the fit between the two and improve the stability of the device during use.

[0051] Furthermore, the wedge-shaped pad 112 is configured as a triangular or trapezoidal plate structure, and the bottom crossbeam 111 is configured as a long strip plate structure. The two sides that connect to each other are both flat. The wedge-shaped pad 112 and the bottom crossbeam 111 are fixed by bolts or welding. The length of the bottom crossbeam 111 is greater than the sum of the lengths of the two wedge-shaped pads 112. By configuring the bottom crossbeam 111 as a long strip plate structure, it is convenient to use ropes to tie and fix the front wedge crossbeam 11 or the rear wedge crossbeam 12 to the amphibious vehicle 5.

[0052] Furthermore, in some embodiments, the wedge-shaped pad 112 can be rotated on the bottom crossbeam 111 via pulleys, allowing the wedge-shaped pad 112 to rotate relative to the bottom crossbeam 111. This makes the angle between the two wedge-shaped pads 112 adjustable. After adjusting the position of the wedge-shaped pad 112, bolts can be used to fix the wedge-shaped pad 112 to the bottom crossbeam 111, enabling it to adapt to different angles of the boat-shaped bottom and further improving the applicability of the device.

[0053] To improve the stability of the support component 1, in other embodiments, both the front wedge beam 11 and the rear wedge beam 12 include a wedge-shaped pad 112, with a matching port 113 opened above the wedge-shaped pad 112. The wedge-shaped pad 112 is integrally formed with the bottom crossbeam 111 or fixed by bolts or other means.

[0054] like Figure 1 As shown, in some embodiments, there are two connecting rods 2, which are arranged side by side on both sides between the front wedge-shaped crossbeam 11 and the rear wedge-shaped crossbeam 12 to achieve a stable connection between the front wedge-shaped crossbeam 11 and the rear wedge-shaped crossbeam 12, and can adapt to the bottom shape of the amphibious vehicle 5.

[0055] like Figure 1 , Figure 2 As shown, in some embodiments, a connection port 114 for connecting the connecting rod 2 is provided on the bottom crossbeam 111 at a position corresponding to the connecting rod 2. A locking pin 23 is also provided at the connection port 114. One end of the connecting rod 2 passes through the connection port 114, and a plurality of connecting grooves are provided on one side of its end. The locking pin 23 is connected between the bottom crossbeam 111 and one of the connecting grooves, thereby achieving the connection between the connecting rod 2 and the bottom crossbeam 111 through the cooperation of the locking pin 23 and the connecting groove. The connecting rod 2 includes a plurality of connecting rods 21. An appropriate number of connecting rods 21 can be added according to the length of different amphibious vehicles 5. Adjacent connecting rods 21 are connected by a sleeve 22, and the connecting rods 21 and the sleeve are connected by bolts. The cylinder 22 is fixed, and each connecting rod 21 has several connecting grooves at its end. The connecting grooves are arranged along its length. After configuring an appropriate number of connecting rods 21 according to the length of the amphibious vehicle 5 to connect the front wedge beam 11 and the rear wedge beam 12, if there is still a certain error in the fit between the wedge pad 112 and the boat-shaped bottom of the amphibious vehicle 5, the position can be adjusted by adjusting the extension length of the connecting rod 21 to the connection port 114. After the position is adjusted, the locking pin 23 is used to connect with the corresponding connecting groove to fix the connecting rod 21. This makes the distance between the front wedge beam 11 and the rear wedge beam 12 adjustable when the vehicle is towed on water, so that this device can be used as a tool for different types of amphibious vehicles 5.

[0056] Furthermore, the connecting rod 2 is not limited to the above-mentioned split configuration. In other embodiments, the connecting rod 2 can be replaced by an integral rod or cable, and the connection method between the locking pin 23 and the connecting groove can be replaced by other fixing methods such as locking nut and screw hole cooperation, locking buckle and slot cooperation.

[0057] like Figure 1 , Figure 2 As shown, in some embodiments, the lifting component 3 includes a jack, which is a horizontal jack 31 located below the support component 1. Its top support end extends upward and connects to the bottom crossbar 111. It should be noted that the jack is existing technology and is widely used in automobiles, mechanical lifting and other fields. For details, please refer to its working principle for understanding.

[0058] Furthermore, a groove is provided at the center of the bottom horizontal section, and the support end of the jack can be inserted into the groove to facilitate the positioning of the support component 1 and the lifting component 3.

[0059] Furthermore, in other embodiments, the horizontal jack 31 can be replaced by other types of jacks commonly used in the market, and the lifting structure can also be a cylinder, etc.

[0060] like Figure 3 , Figure 4 As shown, in some embodiments, both ends of the front wedge beam 11 and the rear wedge beam 12 are provided with trailer wheels 13, which are used to enable the overall support platform to lift the amphibious vehicle to travel on a flat road. The trailer wheels 13 are connected to the front wedge beam 11 or the rear wedge beam 12 by bolts, hinges or bearings.

[0061] To better implement the mobile lifting system for amphibious vehicle maintenance operations in the embodiments of the present invention, such as Figure 5 , Figure 6 As shown, the present invention also provides a mobile lifting method for amphibious vehicle maintenance operations, applicable to amphibious vehicle maintenance operation mobile lifting systems, including a land-based fault handling method and a water-based fault handling method, wherein the land-based fault handling method includes the following steps:

[0062] Step 1: Park the amphibious vehicle 5 until it is in the parking brake position;

[0063] The second step is to place the corresponding front wedge beam 11 and / or rear wedge beam 12 on the front or rear of the boat-shaped body of the amphibious vehicle according to the location of the amphibious vehicle 5 to be repaired, and use fixing ropes to tie and fix the bottom crossbeam 111 to the front or rear part of the amphibious vehicle 5 that needs to be lifted.

[0064] The third step is to place the two jacks in the middle of the front wedge beam 11 and the rear wedge beam 12 respectively, so that the supporting end of the jack is located in the groove on the lower side of the bottom crossbeam 111. Then, turn the handle to lift the wheels of the amphibious vehicle 5. After the wheels are off the ground, use the wooden blocks 14 to support the bottom crossbeam 111 and / or the rear wedge beam 12.

[0065] Step 4: Carry out maintenance work.

[0066] Methods for handling maritime malfunctions include:

[0067] The first step is to tow the amphibious vehicle 5, which has a malfunction, to shore after shutting down its engine.

[0068] The second step is to install trailer wheels 13 at both ends of the bottom crossbeams 111 of the front wedge beam 11 and the rear wedge beam 12.

[0069] Third step: Use connecting rod 2 to connect the two bottom crossbeams 111. Specifically, pass both ends of connecting rod 2 through the corresponding connecting holes 114 on the bottom crossbeam 111. Insert the locking pin 23 on one side into the corresponding connecting rod 2 to fix one end of the connecting rod 2. Then, adjust the distance between the front wedge crossbeam 11 and the rear wedge crossbeam 12 by adjusting the extension length of connecting rod 2. Finally, use the locking pin 23 to lock and fix the other end of the connecting rod 2.

[0070] Step 4: Submerge the front wedge-shaped crossbeam 11 and the rear wedge-shaped crossbeam 12 in the water and place them at the designated positions on the amphibious vehicle's boat-shaped body. Use ropes to tie and secure the bottom crossbeams 111 of the front wedge-shaped crossbeam 11 and the rear wedge-shaped crossbeam 12 to the vehicle body.

[0071] Step 5: Tow the vehicle out of the water and use jacks under the bottom crossbar 111 to lift the amphibious vehicle 5 for maintenance.

[0072] This invention provides a support component 1, a connecting rod 2, and two lifting components 3, enabling the device to have two usage states. It can be used for repairing the wheel suspension and other systems of the amphibious vehicle 5 on land, or for pulling the amphibious vehicle 5 out of the water for repair when it malfunctions while traveling on water, thus achieving multiple uses.

[0073] The overall system of this invention is small in size, light in weight, easy to assemble and disassemble, and easy to carry in vehicles, which greatly improves the maintenance support of amphibious vehicles and is an essential supporting tool for amphibious vehicle 5; it is simple and practical to operate, and greatly reduces the maintenance preparation time of amphibious vehicles.

[0074] The specific embodiments of the present invention described above do not constitute a limitation on the scope of protection of the present invention. Any other corresponding changes and modifications made in accordance with the technical concept of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A mobile lifting method for amphibious vehicle maintenance operations, comprising a mobile lifting system for amphibious vehicle maintenance operations, characterized in that, The mobile lifting system for amphibious vehicle maintenance operations includes: The connecting component includes a front wedge-shaped crossbeam and a rear wedge-shaped crossbeam, the front wedge-shaped crossbeam and the rear wedge-shaped crossbeam respectively having a first support portion and a second support portion for matching and connecting with the two sides of the boat-shaped bottom of the boat-shaped vehicle body; A connecting rod is provided, the two ends of which are detachably connected to the front wedge-shaped crossbeam and the rear wedge-shaped crossbeam, respectively. Two lifting components, the drive ends of the two lifting components are detachably connected to the front wedge beam and the rear wedge beam respectively, so as to lift the boat-shaped vehicle body by raising the front wedge beam and the rear wedge beam respectively; The mobile lifting system for amphibious vehicle maintenance operations has two operating states. In the first state, the two lifting components are respectively connected to the front wedge beam and the rear wedge beam for lifting the vehicle on land. In the second state, both lifting components are separated from the front wedge beam and the rear wedge beam, which are connected by the connecting rod, allowing the system to be fixed to the bottom of the vehicle in the water for lifting. The mobile lifting method includes a land-based fault handling method and a water-based fault handling method, wherein the land-based fault handling method includes the following steps: S11. Bring the amphibious vehicle to a complete stop and engage the parking brake. S12. Place the front wedge beam and / or the rear wedge beam at the designated position on the boat-shaped body of the amphibious vehicle, and use tools to secure the front wedge beam and / or the rear wedge beam to the amphibious vehicle. S13. Place the two lifting components in the middle of the front wedge beam and the rear wedge beam respectively, crank the handle to lift the wheels of the amphibious vehicle, and after the wheels are off the ground, use wooden blocks to raise and support the front wedge beam and / or the rear wedge beam. S14. Carry out maintenance work; Methods for handling maritime malfunctions include: S21. Turn off the engine of the amphibious vehicle with a malfunction and tow it to the shore. S22. Install wheels on the front wedge-shaped crossbeam and the rear wedge-shaped crossbeam respectively; S23. Use connecting rods to connect the front wedge beam and the rear wedge beam; S24. Submerge the front and rear wedge beams in the water and place them at the designated positions on the amphibious vehicle's boat-shaped body. Use tools to secure the front and rear wedge beams to the vehicle body. S25. Tow the vehicle out of the water for repair work.

2. The mobile lifting method for maintenance operations of amphibious vehicles according to claim 1, characterized in that, Both the front wedge-shaped crossbeam and the rear wedge-shaped crossbeam include: Bottom crossbar; A wedge-shaped pad is provided above the bottom crossbar, and its upper side is provided with a matching port that matches the front or rear side of the boat-shaped bottom of the boat-shaped vehicle body.

3. The mobile lifting method for maintenance operations of amphibious vehicles according to claim 2, characterized in that, Both the front wedge-shaped crossbeam and the rear wedge-shaped crossbeam include two wedge-shaped pads, which are arranged opposite each other and extend upwards from one end to the other to form the matching opening between the two wedge-shaped pads.

4. The mobile lifting method for maintenance operations of amphibious vehicles according to any one of claims 3, characterized in that, The wedge-shaped pad is rotatably mounted on the bottom crossbar, and the two are fixed together by bolts.

5. The mobile lifting method for maintenance operations of amphibious vehicles according to any one of claims 1 to 4, characterized in that, The bottom crossbar has a connection port on its side corresponding to the connecting rod for connecting the connecting rod. A locking pin is also provided at the connection port. One end of the connecting rod passes through the connection port, and a plurality of connecting grooves are provided on one side of its end. The locking pin connects the bottom crossbar and one of the connecting grooves.

6. The mobile lifting method for maintenance operations of amphibious vehicles according to claim 5, characterized in that, The connecting rod includes multiple connecting rods, and adjacent connecting rods are connected by sleeves.

7. The mobile lifting method for maintenance operations of amphibious vehicles according to claim 1, characterized in that, Two connecting rods are provided, and the two connecting rods are arranged side by side on both sides between the front wedge-shaped crossbeam and the rear wedge-shaped crossbeam.

8. The mobile lifting method for maintenance operations of amphibious vehicles according to claim 1, characterized in that, Each lifting component includes a jack, which is located below the connecting component and has its top supporting the front wedge beam or the rear wedge beam.

9. The mobile lifting method for maintenance operations of amphibious vehicles according to claim 1, characterized in that, Wheels are provided on both sides of the front wedge-shaped crossbeam and the rear wedge-shaped crossbeam, and the wheels are detachably connected to the front wedge-shaped crossbeam or the rear wedge-shaped crossbeam.

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