Combined transport vehicle

Abstract

The invention provides a combined transport vehicle which comprises a movable chassis, a lifting platform, at least one pile leg and a power station. The lifting platform is installed on the movable chassis and ascends and descends through a lifting mechanism. One end of the pile leg can ascend and descend after penetrating through the movable chassis, and the other end of the pile leg is fixed to the lifting platform through a lifting device; the power station is of an airtight closed structure and is arranged on the lifting platform so as to ascend and descend along with the lifting platform. The filtering lifting platform adjusts the water level line, multi-habitat transportation is achieved through an airtight structure of the power station, and the technical problem that in the prior art, a multi-habitat mobile transportation tool is lacked is solved.

Description

Technical field:

[0001] The invention relates to the field of multi-functional mobile equipment, in particular to a combined transport vehicle. Background technology:

[0002] Submersible tanks, submersible bulldozers, beach crawler transporters and other tracked vehicles used in coastal areas at home and abroad, and equipment that can operate underwater in shallow water areas, have extremely high requirements for watertightness, control driving, underwater observation and other functions and performances directly related to completing tasks. At the same time, underwater operations also need to solve the problems of fresh air intake and exhaust gas required for power system combustion, the survival of drivers and passengers, and the sealing of the vehicle structure. Therefore, the technical difficulty is high, the use risk is high, and the equipment price is expensive. Beach crawler transporters can only solve the problem of transporting heavy equipment on soft beaches, but cannot solve the problems of power system intake and exhaust, the survival of drivers and passengers in the cabin, and the watertightness of the vehicle body during diving operations.

[0003] There is an urgent need for a combined transport vehicle, which helps to solve the technical problem of lacking a multi-functional mobile transport vehicle in the prior art. Summary of the invention:

[0004] In one embodiment, the present invention provides a combined transport vehicle, in which the filtering lifting platform adjusts the water level and utilizes the airtight structure of the power station to achieve amphibious transportation, which helps to solve the technical problem of the lack of an amphibious mobile transport tool in the prior art.

[0005] The combined transport vehicle comprises a mobile chassis and a lifting platform, as well as at least one pile leg and a power station;

[0006] The lifting platform is installed on the mobile chassis, and the lifting platform is lifted and lowered by a lifting mechanism;

[0007] One end of the pile leg can be lifted and lowered after passing through the mobile chassis, and the other end of the pile leg is fixed to the lifting platform through a lifting device;

[0008] The power station is an airtight closed structure, and the power station is arranged on the lifting platform to follow the lifting of the lifting platform.

[0009] In one embodiment, the mobile chassis is a tracked chassis.

[0010] In one embodiment, the pile legs are provided with racks along the length direction, and the bottoms of the pile legs are provided with base plates.

[0011] In one embodiment, the power station includes a cockpit and a power compartment.

[0012] In one embodiment, the lifting device comprises a structural frame and at least one connecting ear plate;

[0013] The structural frame is provided with a gear inside, which meshes with the rack on the pile leg to achieve up and down movement;

[0014] The connecting ear plate is connected to the structural frame, and the connecting ear plate is used to install the lifting device on the lifting platform.

[0015] In one embodiment, the modular transport vehicle further comprises a locking mechanism;

[0016] The locking mechanism further comprises a driving hydraulic cylinder and a driving guide mechanism, and a connecting rod;

[0017] The driving guide mechanism is a cylindrical structure, the driving guide mechanism is fixed on the lifting platform, and the driving hydraulic cylinder moves along the length direction of the driving guide mechanism;

[0018] One end of the connecting rod is hinged to the end of the driving hydraulic cylinder, and the other end of the connecting rod is hinged to the lifting platform. When the extended end of the driving hydraulic cylinder is extended, it is stuck between the teeth of the rack on the pile leg.

[0019] In one embodiment, the power station further includes a cockpit and a power compartment.

[0020] In one embodiment, the power station further includes a support beam, an exhaust port, an air inlet, a watertight door, a watertight manhole cover, and a ladder.

[0021] In one embodiment, the lifting platform is also provided with an escalator.

[0022] In one embodiment, the travel reducer of the mobile chassis has a variable control valve and a closed pump, as well as a flushing valve and a travel motor, an oil replenishment pump, an oil replenishment valve, a high-pressure relief valve, and an oil drain pipeline. Description of the drawings:

[0023] Figure 1 It is a schematic diagram of the structure of a combined transport vehicle in one embodiment of the present invention;

[0024] Figure 2 It is a schematic top view of the structure of a combined transport vehicle in another embodiment of the present invention;

[0025] Figure 3 It is a schematic side view of the structure of a combined transport vehicle in another embodiment of the present invention;

[0026] Figure 4 A schematic diagram of a lifting operation state of a combined transport vehicle in another embodiment of the present invention;

[0027] Figure 5 A diagram of a combined transport vehicle in a lifting and traveling state in another embodiment of the present invention;

[0028] Figure 6 It is a schematic diagram of the components of the lifting pile legs in another embodiment of the present invention;

[0029] Figure 7 It is a schematic diagram of the composition of a lifting platform in another embodiment of the present invention;

[0030] Figure 8 It is a front view schematic diagram of the power station composition in another embodiment of the present invention;

[0031] Fig. 9 It is a top view schematic diagram of the power station composition in another embodiment of the present invention;

[0032] Fig.10 It is a side view schematic diagram of the power station composition in another embodiment of the present invention;

[0033] Fig.11 A schematic diagram of the lifting mechanism in another embodiment of the present invention;

[0034] Fig.12 A schematic diagram of the locking mechanism in another embodiment of the present invention;

[0035] Fig.13 This is a schematic diagram of the travel drive hydraulic principle in another embodiment of the present invention.

[0036] Reference numerals:

[0037] Mobile chassis 1

[0038] Lifting platform 2

[0039] Leg 3

[0040] Rack 31

[0041] Base plate 32

[0042] Leg body 33

[0043] Lifting device 4

[0044] Structural frame 41

[0045] Connecting ear plate 42

[0046] Motor reducer with gear drive mechanism 43

[0047] Pile leg installation guide hole 44

[0048] Power Station 5

[0049] Cockpit 51

[0050] Power compartment 52

[0051] Support beam 53

[0052] Exhaust port 54

[0053] Air Inlet 55

[0054] Watertight door 56

[0055] Watertight manhole cover 57

[0056] Ladder 58

[0057] Locking mechanism 6

[0058] Driving hydraulic cylinder 61

[0059] Drive linkage 62

[0060] Drive guide mechanism 63

[0061] Lock block 64 Specific embodiment:

[0062] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0063] Various aspects and features of the present application are described herein with reference to the accompanying drawings.

[0064] These and other characteristics of the present application will become apparent from the following description of a preferred form of embodiment given as a non-limiting example with reference to the accompanying drawings.

[0065] It should also be understood that, although the present application has been described with reference to some specific examples, those skilled in the art will be able to realize many other equivalent forms of the present application that have the features described in the claims and are therefore within the scope of protection defined thereby.

[0066] The above and other aspects, features and advantages of the present application will become more apparent in view of the following detailed description when taken in conjunction with the accompanying drawings.

[0067] Specific embodiments of the present application are described hereinafter with reference to the accompanying drawings; however, it should be understood that the embodiments applied for are merely examples of the present application, which may be implemented in a variety of ways. Well-known and / or repeated functions and structures are not described in detail to determine the true intent based on the user's historical operations and to avoid unnecessary or redundant details that make the present application unclear. Therefore, the specific structural and functional details applied for herein are not intended to be limiting, but are merely used as the basis and representative basis for the claims to teach those skilled in the art to use the present application in a variety of ways with substantially any suitable detailed structure.

[0068] This specification may use the phrases "in one embodiment," "in another embodiment," "in yet another embodiment," or "in other embodiments," all of which may refer to one or more of the same or different embodiments according to the present application.

[0069] The present invention relates to a crawler chassis vehicle that can operate in the transition zone between the shore and the beach, such as land military vehicle equipment such as main battle tanks and general land equipment such as crawler excavators and cranes. The vehicle body is not completely watertight and can only reach a certain wading depth. After the wading depth is exceeded, the vehicle body will leak water. If water enters the intake and exhaust system of the engine, it will cause a parking accident and cause irreversible damage to the engine, or even cause it to be scrapped. If water enters the vehicle body, the driver and crew members inside the vehicle body cannot escape in time, which will cause a drowning accident. In some cases, especially when landing on the beach or carrying out engineering construction on some beaches, heavy-duty transport vehicles are needed to barge equipment or cargo from a transport ship docked at a certain distance from the beach to the beach. The water depth of this section is from deep to shallow. Due to the deep draft of the transport ship, the water depth at the connection point usually exceeds the wading depth of the transport vehicle and even submerges the roof of the transport vehicle. The combined low-load road crawler transport vehicle described in this patent solves the problem of barging heavy equipment or cargo from the transport ship to the beach across the water and the low-load road of the tidal flat.

[0070] The existing technical solutions cost a lot to realize the watertightness of the intake and exhaust system and the liftable pipelines and the vehicle body, so the equipment is expensive. At the same time, during diving operations, the driver, passengers and engine equipment are working underwater. Once the vehicle body is flooded, it is difficult for the driver and passengers to escape quickly, and the risk of drowning is relatively high. After the engine equipment is flooded, water enters the body and is damaged, which poses a great risk of property loss.

[0071] When the crawler chassis is operating in the shallow water area of ​​the coastal beach to the beachhead, there are two states: wading and walking on the soft beach. When driving on the beach, it is necessary to solve the problem that the ground contact pressure of the crawler is less than the bearing capacity of the beach ground, and to increase the ground contact length and ground contact width of the crawler. Unlike the amphibious chassis, the crawler chassis still drives on the seabed when wading, rather than the amphibious chassis sailing through the water propulsion device. Therefore, the crawler must be able to touch the ground. Therefore, when the water depth exceeds the height of the chassis, the chassis sinks to the bottom of the water for diving and operation. When the chassis uses an internal combustion engine as a power source, it is necessary to solve the problem of the intake and exhaust of the internal combustion engine. When the chassis uses a battery as a power source, it is necessary to solve the problem of exhaust gas discharge generated by the electrochemical reaction of the battery and the heat dissipation of the battery pack, as well as the ventilation problem of fresh air and exhaust gas generated by breathing required for the survival of the driver and passengers. If the traditional closed body and liftable ventilation duct design are adopted, the first is that the technology is complex and the cost is high. Second, there is a great safety risk when the driver, passengers and the engine work underwater. How can the above problems be solved without using the technical path of watertight vehicle body? Through analysis, the project team adopted the technical path of power unit and lifting of driver and passengers to achieve the power unit, driver and passengers when operating in water.

[0072] Figure 1 It is a schematic diagram of the structure of a combined transport vehicle in one embodiment of the present invention; Figure 2 It is a schematic top view of the structure of a combined transport vehicle in another embodiment of the present invention; Figure 3 It is a schematic side view of the structure of a combined transport vehicle in another embodiment of the present invention; Figure 4 A schematic diagram of a lifting operation state of a combined transport vehicle in another embodiment of the present invention; Figure 5 A diagram of a combined transport vehicle in a lifting and traveling state in another embodiment of the present invention; Figure 6 It is a schematic diagram of the components of the lifting pile legs in another embodiment of the present invention; Figure 7 It is a schematic diagram of the composition of a lifting platform in another embodiment of the present invention; Figure 8 It is a front view schematic diagram of the power station composition in another embodiment of the present invention; Fig. 9 It is a top view schematic diagram of the power station composition in another embodiment of the present invention; Fig.10 It is a side view schematic diagram of the power station composition in another embodiment of the present invention; Fig.11 A schematic diagram of the lifting mechanism in another embodiment of the present invention; Fig.12 A schematic diagram of the locking mechanism in another embodiment of the present invention; Fig.13 This is a schematic diagram of the travel drive hydraulic principle in another embodiment of the present invention.

[0073] like Figures 1 to 13As shown, in one embodiment, the present invention provides a combined transport vehicle, which includes a mobile chassis 1, a lifting platform 2, at least one pile leg 3, and a power station 5;

[0074] The lifting platform 2 is installed on the mobile chassis 1, and the lifting platform 2 is lifted and lowered by a lifting mechanism;

[0075] One end of the pile leg 3 penetrates the mobile chassis 1 and can be raised and lowered, and the other end of the pile leg 3 is fixed on the lifting platform 2 through the lifting device 4;

[0076] The power station 5 is an airtight closed structure, and the power station 5 is arranged on the lifting platform 2 so as to rise and fall along with the lifting platform 2 .

[0077] In the present embodiment, a specific structure of a combined transport vehicle is provided. The key elements of the watertightness problem lie in two parts. One part is the airtightness and watertightness of the power station 5 itself, and the other part is the pressure of the power station 5 under water. Therefore, the draft state of the power station 5 is ensured by a lifting platform to adjust the external pressure of the power station 5, so as to finally achieve that the pressure of the power station 5 is within a reasonable range, ensuring that it will not cause airtightness or watertightness problems when the pressure is too high. For example, when the transport vehicle is about to sink into the water, if the external pressure exceeds the warning pressure, the lifting platform 2 is appropriately raised, so that the external pressure will be reduced, thereby achieving that the power station 5 will not be subjected to excessive pressure to cause watertightness or airtightness problems, affecting the life safety of the driver in the power station 5, and helping to solve the technical problem of the lack of a multi-functional mobile transport tool in the prior art.

[0078] It should be pointed out that the power station 5 is the cabin where the driver performs operations. The specific structure of the power station 5 will be further described later, so it will not be repeated here.

[0079] The lifting device 4 is a metal structure, a rectangular platform, and pile legs 3 are set at the four corners on both sides, so there are four pile legs 3. The lifting device 4 is composed of a structural frame 41, a connecting ear plate 42, a motor reducer with a gear drive mechanism 43, and a pile leg installation guide hole 44.

[0080] In one embodiment, the mobile chassis 1 is a crawler chassis.

[0081] In this embodiment, the mobile chassis 1 is a crawler chassis. The four corners are provided with upper guide holes for the pile legs 3, and the two sides of the guide holes for the pile legs 3 are provided with connecting ears for the lifting mechanism.

[0082] In addition, the mobile chassis 1 is composed of crawlers, running wheels, traction wheels, suspension, a frame structure, four corners of the frame structure are opened with guide holes for the lower layer of pile legs, a motor reducer and a hydrostatic transmission system.

[0083] It should be pointed out that when the crawler chassis is operating in the shallow water area near the coast to the beach, there are two states: wading and walking on soft sand. When driving on the beach, it is necessary to solve the problem that the ground contact pressure of the crawler is less than the bearing capacity of the beach ground, and to increase the ground contact length and width of the crawler. Different from the amphibious chassis, the crawler chassis still drives on the seabed when wading, rather than the amphibious chassis sailing through the water propulsion device.

[0084] In one embodiment, a rack 31 is provided along the length direction of the pile leg 3 , and a base plate 32 is provided at the bottom of the pile leg 3 .

[0085] In this embodiment, a specific structure of a pile leg 3 is provided. On the one hand, a rack 31 is provided in the length direction thereof. The main structure is a steel pipe pile with a base plate 32 provided at the bottom. A universal hinge can be used at the connection of the base plate 32 to ensure that the level can be adjusted when the bottom of the water is uneven. The pile leg body 33 is a steel pipe structure.

[0086] In one embodiment, the power station 5 includes a cockpit 51 and a power cabin 52. In addition, the power station 5 also includes a support beam 53, an exhaust port 54, an air inlet 55, a watertight door 56, a watertight manhole cover 57, and a ladder 58.

[0087] In this embodiment, a specific implementation configuration of a cabin of a power station 5 is provided.

[0088] In one embodiment, the lifting device 4 includes a structural frame 41 and at least one connecting ear plate 42;

[0089] The structural frame 41 is provided with a gear inside to mesh with the rack 31 on the pile leg 3 to achieve up and down movement;

[0090] The connecting lug plate 42 is connected to the structural frame 41, and the connecting lug plate 42 is used to install the lifting device 4 on the lifting platform 2. The structural frame 41 is also provided with a motor reducer with a gear drive mechanism 43 and a pile leg installation guide hole 44.

[0091] In one embodiment, the modular transport vehicle further comprises a locking mechanism 6;

[0092] The locking mechanism 6 further includes a driving hydraulic cylinder 61, a driving connecting rod mechanism 62, a driving guide mechanism 63, and a locking block 64;

[0093] The driving guide mechanism 62 is a cylindrical structure, which is fixed on the lifting platform, and the driving hydraulic cylinder moves along the length direction of the driving guide mechanism;

[0094] One end of the connecting rod is hinged to the end of the driving hydraulic cylinder, and the other end of the connecting rod is hinged to the lifting platform 2. When the extended end of the driving hydraulic cylinder 61 is extended, it is stuck between the teeth of the rack on the pile leg 3.

[0095] In this embodiment, a specific structure of a locking mechanism 6 is provided, wherein the protruding end is essentially a locking block, which is used to clamp the rack and prevent the pile leg 3 from moving up and down. When the locking block is retracted, the pile leg 3 can move up and down again, so as to achieve the purpose of inserting the pile leg 3 into the water bottom or lifting it up.

[0096] In one embodiment, the power station 5 further includes a cockpit 51 and a power cabin 52 .

[0097] In one embodiment, the power station 5 further includes a support beam 53 , an exhaust port 54 , an air inlet 55 , a watertight hatch 56 , a watertight manhole cover 57 , and a ladder 58 .

[0098] In this embodiment, a specific structure of an exhaust port 54 and an air inlet 55 is provided. Therefore, the crawler must be able to touch the ground. Therefore, when the water depth exceeds the height of the chassis, the chassis sinks to the bottom of the water for diving and operation. When the chassis uses an internal combustion engine as a power source, the problem of the intake and exhaust of the internal combustion engine needs to be solved. If a closed vehicle body and a liftable ventilation duct are designed, the technology is complex and the cost is high. Second, the driver, passengers and the engine work underwater, which poses a great safety risk.

[0099] In one embodiment, the lifting platform 2 is further provided with an escalator.

[0100] This is the ladder mentioned above.

[0101] In one embodiment, the travel reducer of the mobile chassis 1 has a variable control valve and a closed pump, as well as a flushing valve and a travel motor, an oil replenishment pump, an oil replenishment valve, a high-pressure relief valve, and an oil drain pipeline.

[0102] In this embodiment, the lifting platform 2 is placed horizontally and supported at both ends of the frame structure, and the upper guide hole on it is concentric with the lower guide hole on the frame structure. The lifting pile legs 3 pass through the upper guide hole and the lower guide hole to connect the lifting platform 2 and the frame structure, limiting the remaining degrees of freedom of the lifting platform 2 except the lifting freedom; the frame structure of the lifting mechanism is connected through the frame structure connecting ear plate and the lifting mechanism connecting support ear. After the connection, the pile leg installation guide hole of the lifting mechanism is concentric with the upper guide hole of the lifting platform 2, and the lifting pile legs 3 also pass through the pile leg installation guide hole of the lifting mechanism. The lifting mechanism motor reducer with gear drive mechanism and the steel pipe pile with rack of the lifting pile legs 3 form a gear rack lifting mechanism, and the motor drives the reducer to drive the gear to rotate in the positive and negative directions, thereby driving the lifting platform to rise and fall along the lifting pile legs; the locking mechanism is symmetrically installed on the upper guide hole of the lifting platform and the lower guide hole of the frame structure of the mobile chassis 1, and the inner surface of the locking block of the locking mechanism has a tooth shape with the same specifications as the steel pipe pile rack with rack of the lifting pile legs.

[0103] The power station 5 is connected to the side of the lifting platform 2 through a support beam. The chassis drive adopts hydrostatic drive. The hydraulic power is transmitted to the driving wheels of the walking chassis through a hydraulic hose. Steering and braking are both driven and controlled by hydraulics.

[0104] Lifting legs, lifting platform, walking chassis, power station, lifting mechanism, locking mechanism.

[0105] At both ends of the frame structure, the upper guide holes thereon are concentric with the lower guide holes on the frame structure, and the lifting legs pass through the upper guide holes and the lower guide holes to connect the lifting platform and the frame structure, limiting the remaining degrees of freedom of the lifting platform except the lifting freedom; the frame structure of the lifting mechanism is connected through the frame structure connecting ear plate and the lifting mechanism connecting support ear. After the connection, the leg installation guide holes of the lifting mechanism are concentric with the upper guide holes of the lifting platform, and the lifting legs also pass through the leg installation guide holes of the lifting mechanism. The lifting mechanism motor reducer with gear drive mechanism and the steel pipe pile with rack of the lifting leg form a gear rack lifting mechanism. The motor drives the reducer to drive the gear to rotate in the positive and negative directions, thereby driving the lifting platform to rise and fall along the lifting legs; the locking mechanism is symmetrically installed on the upper guide hole of the lifting platform and the lower guide hole of the frame structure of the walking chassis, and the inner surface of the locking block of the locking mechanism has a tooth shape with the same specifications as the steel pipe pile rack of the lifting leg with rack.

[0106] The power station is connected to the side of the lifting platform through a support beam. The chassis drive adopts hydrostatic drive. The hydraulic power is transmitted to the driving wheels of the walking chassis through hydraulic hoses. Steering and braking are both driven and controlled by hydraulics.

[0107] Beneficial effects:

[0108] The present invention provides a combined coastal shallow tracked transport vehicle, in which a power station and a cab are arranged above a traveling chassis, and when traveling or operating in a deep water area, a lifting platform can drive the power station and the cab to rise to a certain height to avoid the power station and the cab being submerged underwater, thereby solving the problem of vehicle body sealing and the safety problem of underwater operations of passengers, engines, etc.

[0109] Solve the problems of crawler chassis' navigation under load in water in the transition zone between shallow coastal waters and the beach, intake and exhaust problems under operating conditions, vehicle body watertightness problems, driver and passenger survival problems, and driving control problems.

[0110] A combined coastal shoal crawler transporter is a collision docking, which divides the entire longitudinal connection into two actions: the cone pin and the cone hole are hard-guided and adjusted to the center, the power system drives in opposite directions to dock, the hook hits the hook seat to complete the locking and positioning, and the cylinder pin is inserted into the single and double ear holes to complete the longitudinal bottom connection. The structure is simple and can be easily installed and connected with the joint boat. Through the guidance of the cone hole and the cone pin, the collision locking of the hook and the hook seat, a quick connection can be achieved.

[0111] The present invention adopts a hydrostatic transmission to drive the traveling chassis for travel. The hydrostatic transmission can be flexibly arranged and can adopt hydraulic-electric centralized control. By utilizing this feature, the present invention integrates the power system into a modular power station and an integrated cab, and is equipped with an upper part of the traveling chassis, which is lifted and lowered by a lifting platform to keep the cab and the power station working above the water surface at all times, thereby solving the problems of underwater load navigation in the transition zone between the coastal shallow water area and the shore, the intake and exhaust problems under operating conditions, the watertightness problem of the vehicle body, the survival problem of the driver and passengers, and the driving control problem.

[0112] Taking advantage of the flexible layout of the hydrostatic transmission equipment, the vehicle consists of two parts. One part integrates the engine and auxiliary intake and exhaust systems, starting system, cooling system, control system, etc., and integrates it with the cockpit as an integrated container power station, which is installed on the upper part of the platform through a connecting frame to ensure that the maximum working water depth does not exceed the height of the power system and the cab. The remaining frame, walking system, braking system, steering system, etc. are integrated into the underwater chassis part, which is required to be watertight to reduce the difficulty of design and manufacturing.

[0113] The platform where the power station is located is connected to the chassis through a lifting mechanism, and the height of the power station can be adjusted according to the water depth to adapt to greater water depths.

[0114] The power station can be installed directly on the chassis or on the lifting platform, so it can be flexibly combined into two forms to meet the different requirements of water transportation and land transportation.

[0115] The above embodiments are only exemplary embodiments of the present invention and are not intended to limit the present invention. The protection scope of the present invention is defined by the claims. Those skilled in the art may make various modifications or equivalent substitutions to the present invention within the essence and protection scope of the present invention, and such modifications or equivalent substitutions shall also be deemed to fall within the protection scope of the present invention.

Claims

1. A combined transport vehicle, characterized in that: The combined transport vehicle comprises: A mobile chassis (1); A lifting platform (2) is installed on the mobile chassis (1), and the lifting platform (2) is lifted and lowered by a lifting mechanism; at least one pile leg (3), one end of which penetrates through the movable chassis (1) and can be raised and lowered, and the other end of the pile leg (3) is fixed on the lifting platform (2) via a lifting device (4); A power station (5) is an airtight closed structure. The power station (5) is arranged on the lifting platform (2) so as to rise and fall along with the lifting platform (2).

2. The combined transport vehicle according to claim 1, characterized in that: The mobile chassis (1) is a crawler chassis.

3. The combined transport vehicle according to claim 2, characterized in that: The pile leg (3) is provided with a rack (31) along the length direction, and a base plate (32) is provided at the bottom of the pile leg (3).

4. The combined transport vehicle according to claim 3, characterized in that: The power station (5) comprises a cockpit (51) and a power cabin (52).

5. The combined transport vehicle according to claim 4, characterized in that: The lifting device (4) comprises: a structural frame (41) having a gear disposed therein for meshing with the rack (31) on the pile leg (3) to achieve up and down movement; At least one connecting ear plate (42) is connected to the structural frame (41), and the connecting ear plate (42) is used to install the lifting device (4) on the lifting platform (2).

6. The combined transport vehicle according to claim 5, characterized in that: The combined transport vehicle also includes: A locking mechanism (6), the locking mechanism (6) further comprising: A driving hydraulic cylinder (61); A driving guide mechanism (62) which is a cylindrical structure, the driving guide mechanism (62) is fixed on the lifting platform, and the driving hydraulic cylinder moves along the length direction of the driving guide mechanism; A connecting rod, one end of which is hinged to the end of the driving hydraulic cylinder, and the other end of the connecting rod is hinged to the lifting platform (2). When the extended end of the driving hydraulic cylinder (61) is extended, it is stuck between the teeth of the rack on the pile leg (3).

7. The combined transport vehicle according to claim 6, characterized in that: The power station (5) also includes a cockpit (51) and a power cabin (52).

8. The combined transport vehicle according to claim 7, characterized in that: The power station (5) further comprises a support beam (53), an exhaust port (54), an air inlet (55), a watertight hatch (56), a watertight manhole cover (57), and a ladder (58).

9. The combined transport vehicle according to claim 8, characterized in that: The lifting platform (2) is also provided with an escalator.

10. The combined transport vehicle according to claim 9, characterized in that: The travel reducer of the mobile chassis (1) comprises a variable control valve and a closed pump, as well as a flushing valve and a travel motor, an oil replenishment pump, an oil replenishment valve, a high-pressure relief valve, and an oil drain pipeline.

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