Transport vehicle

Abstract

The invention relates to the technical field of carrying equipment, in particular to a transport vehicle. The transport vehicle comprises a frame; the crawler walking assemblies are arranged on the two sides of the frame; the crawler walking assembly comprises a mounting frame, a crawler, a driving wheel, a guide wheel, a first loading wheel and a second loading wheel; the mounting frame is connected with the frame; the driving wheel and the guide wheel are respectively arranged at two ends of the top of the mounting frame; the first loading wheel and the second loading wheel are arranged at the two ends of the bottom of the mounting frame correspondingly and located between the driving wheel and the guide wheel. The track between the first loading wheel and the guide wheel forms a first track section, and the track between the second loading wheel and the first loading wheel forms a second track section; an included angle is formed between the first track section and the second track section; the lifting working assembly is connected with the frame and can turn over relative to the frame; in the first mode, the first track section is in contact with the walking surface; and in the second mode, the second track section is in contact with the walking surface. The mode switching operation of the transport vehicle is simple.

Description

Technical Field

[0001] This application relates to the field of material handling equipment technology, and more specifically, to a transport vehicle. Background Technology

[0002] When transporting light supplies in the field, due to limitations such as terrain and transportation, transport vehicles are sometimes unable to reach the destination for loading and unloading. The routine operation is that when the transport vehicle reaches a location where it cannot go any further, the supplies are unloaded into a more maneuverable tracked transfer vehicle by forklift or manual labor, and then transported to the destination for loading and unloading. Alternatively, the supplies can be unloaded and transferred directly by human or animal power.

[0003] This method of loading, unloading, and transferring lightweight goods requires a lot of equipment, has high transportation costs, is relatively complicated to operate, and requires a large number of personnel to cooperate, resulting in low overall transportation efficiency. Summary of the Invention

[0004] In view of this, this application aims to provide a transport vehicle that can switch between forklift mode and trolley mode. The operator only needs to operate the transport vehicle to complete the entire process of "unloading-transfer", without the need to transfer goods between different devices, which greatly simplifies the process and improves transportation efficiency.

[0005] To achieve the above objectives, this application provides a transport vehicle, comprising: a frame; a tracked running gear assembly disposed on both sides of the frame; the tracked running gear assembly includes a mounting frame, tracks, drive wheels, guide wheels, a first road wheel, and a second road wheel; the mounting frame is connected to the frame; the drive wheel and guide wheels are respectively disposed at both ends of the top of the mounting frame; the first road wheel and the second road wheel are respectively disposed at both ends of the bottom of the mounting frame, and located between the drive wheel and the guide wheel; the tracks surround the drive wheel, guide wheels, first road wheel, and second road wheel; the track between the first road wheel and the guide wheel forms a first track segment, and the track between the second road wheel and the first road wheel forms a second track segment; an angle is formed between the first track segment and the second track segment; a lifting working assembly is connected to the frame and can rotate relative to the frame, allowing the transport vehicle to switch between a first mode and a second mode; in the first mode, the first track segment contacts the running surface; in the second mode, the second track segment contacts the running surface.

[0006] In the above technical solution, the center of gravity of the transport vehicle is changed by rotating the lifting working component, thus achieving mode switching without the need for additional accessories or switching equipment, and the switching operation is simple. In the first mode, the center of gravity of the transport vehicle is between the guide wheel and the first road wheel; while in the second mode, the center of gravity of the transport vehicle is between the two road wheels, resulting in larger approach and departure angles, which can reduce the tendency of the frame to roll around the drive wheels. Whether in the first or second mode, the transport vehicle can achieve self-balancing without manual intervention.

[0007] In some technical solutions, optionally, the length of the first track segment is less than the length of the second track segment.

[0008] In the above technical solution, the shorter first track section allows the lifting working component to move only a small distance so that its projection can quickly pass over the first road wheel, thereby rapidly triggering the vehicle to tilt backward. The longer second track section allows the transport vehicle to move stably.

[0009] In some technical solutions, the lifting working assembly may optionally include: a first frame, one end of which is connected to the vehicle frame and is capable of rotating relative to the vehicle frame; a second frame, which is slidably connected to the first frame; a fork mechanism, which is connected to the second frame; and a first drive mechanism, which is disposed on the first frame and connected to the second frame, to drive the second frame and the first frame to slide relative to each other.

[0010] In the above technical solution, the second frame slides relative to the first frame through the first drive mechanism, thereby driving the fork mechanism to move synchronously. In this way, in the first mode, the lifting or lowering of goods can be completed, enabling the transport vehicle to function as a forklift.

[0011] In some technical solutions, optionally, the fork mechanism includes: a back plate connected to a second frame; at least two forks connected to the back plate via fork holders; wherein the fork holders and the back plate are detachably connected, and / or the forks and the fork holders are hinged.

[0012] In practical applications, this allows for two main advantages. First, the spacing between the forks can be adjusted according to the structural form and size limitations of the goods to meet the loading requirements of different goods, thereby enhancing the adaptability of the transport vehicle to various working conditions and the flexibility of loading. Second, when the vehicle is not in operation, the forks can be folded upwards or to the side. This reduces the size of the fork mechanism and even the front or side profile of the entire vehicle.

[0013] In some technical solutions, the lifting working assembly may optionally include a handrail located at the other end of the first frame.

[0014] In the above technical solution, the handrail provides the operator with a convenient position to exert force, enabling them to more easily control the lifting working components.

[0015] In some technical solutions, the transport vehicle may optionally include a locking assembly that connects the lifting working assembly and the frame and can switch between a locked state and an unlocked state. In the locked state, the locking assembly prevents the lifting working assembly from rotating relative to the frame, thereby keeping the transport vehicle in its current mode. In the unlocked state, the lifting working assembly is allowed to rotate to switch modes.

[0016] In the above technical solution, the locking component can fix the lifting working component to the frame, preventing it from tipping over relative to the frame. This can effectively prevent the lifting working component from accidentally tipping over due to factors such as road bumps, cargo center of gravity shift, or operator error, thereby preventing safety accidents such as cargo falling, equipment damage, and personal injury.

[0017] In some technical solutions, the locking assembly optionally includes a locking member and an electric latch; wherein the locking member has a locking hole that engages with the electric latch; one of the locking member and the electric latch is disposed on the first frame and the other is disposed on the vehicle frame.

[0018] In the above technical solution, the operation of the electric latch is faster and more convenient, which greatly shortens the time of mode switching and improves the efficiency of transportation operations.

[0019] In some technical solutions, optionally, the first frame is connected to the vehicle frame via a rotating shaft; the lifting working assembly also includes an angle limiting mechanism; the angle limiting mechanism includes: a limiting gear plate, which is coaxially arranged with the rotating shaft; the limiting gear plate is provided with a positioning groove; and a limiting pin is inserted into the positioning groove.

[0020] In the above technical solution, the rotation angle of the first frame (i.e., the lifting working component) is limited by the interaction between the limiting pin and the positioning groove, so as to ensure that the rotation range of the lifting working component is controllable.

[0021] In some technical solutions, the tracked travel assembly may optionally include a tension wheel; the tension wheel is located on top of the mounting frame and between the drive wheel and the guide wheel.

[0022] In the above technical solution, by setting a tensioning wheel, the track tension can be flexibly adjusted according to the actual working conditions, so that the transport vehicle can better adapt to various complex environments and improve the versatility and adaptability of the equipment.

[0023] In some technical solutions, the tracked travel assembly may optionally include a tensioning mechanism; the tensioning mechanism includes: a screw, rotatably mounted on a mounting bracket; a screw seat, screwed to the screw; and a tensioning arm, one end connected to the screw seat and the other end connected to the tensioning wheel.

[0024] In the above technical solution, when the screw rotates, according to the principle of threaded transmission, the screw seat will move linearly along the axial direction of the screw. One end of the tensioning arm is connected to the screw seat, and the other end is connected to the tensioning wheel. The linear movement of the screw seat will drive the tensioning arm to move, thereby changing the position of the tensioning wheel, and ultimately achieving the adjustment of the track tension.

[0025] Additional aspects and advantages of the technical solutions of this application will become apparent in the following description or may be learned by practice of this application. Attached Figure Description

[0026] Figure 1 This is one of the schematic diagrams of a multi-purpose transport vehicle structure related to this technology;

[0027] Figure 2 This is the second schematic diagram of the structure of a multi-purpose transport vehicle related to the technology.

[0028] Figure 3 This is one of the structural schematic diagrams of the transport vehicle in the second mode according to some embodiments of this application;

[0029] Figure 4 This is a second schematic diagram of the transport vehicle in the second mode according to some embodiments of this application;

[0030] Figure 5 This is the third of the structural schematic diagrams of the transport vehicle in the second mode according to some embodiments of this application;

[0031] Figure 6 This is one of the structural schematic diagrams of the transport vehicle in the first mode according to some embodiments of this application;

[0032] Figure 7 This is a second schematic diagram of the transport vehicle in the first mode according to some embodiments of this application;

[0033] Figure 8 This is the third of three structural schematic diagrams of the transport vehicle in the first mode according to some embodiments of this application;

[0034] Figure 9 This is one of the structural schematic diagrams of the lifting working component in some embodiments of this application;

[0035] Figure 10 This is a second schematic diagram of the structure of the lifting working component in some embodiments of this application;

[0036] Figure 11 This is one of the structural schematic diagrams of the tracked walking assembly according to some embodiments of this application;

[0037] Figure 12 This is a second schematic diagram of the structure of the tracked walking assembly according to some embodiments of this application;

[0038] Figure 13 This is the third of the structural schematic diagrams of the tracked walking assembly of some embodiments of this application;

[0039] Figure 14 This is one of the structural schematic diagrams of a transport vehicle according to some embodiments of this application;

[0040] Figure 15 This is a second schematic diagram of the structure of a transport vehicle according to some embodiments of this application;

[0041] Figure 16This is the third schematic diagram of the structure of the transport vehicle in some embodiments of this application;

[0042] Figure 17 This is one of the structural schematic diagrams of the control component in some embodiments of this application;

[0043] Figure 18 This is a second schematic diagram of the structure of the control component in some embodiments of this application.

[0044] Figure label:

[0045] 1' Chassis; 2' Working device; 3' Walking mechanism; 4' Pedal; 5' Body assembly; 6' Drive motor; 7' Hydraulic oil tank; 8' Electro-hydraulic proportional multi-way valve; 9' Remote control receiver; 10' Instrument; 11' Handle; 12' Hand-held operating handle; 13' Telescopic arm; 14' Emergency stop switch; 15' Forklift control handle; 16' Electrical control assembly; 17' Power key switch; 18' Lithium battery pack; 19' Hydraulic pump station; 601' Drive main wheel; 602' Sub-wheel;

[0046] 100 frame;

[0047] 200 Track travel assembly; 210 Mounting bracket; 220 Track; 221 First track section; 222 Second track section; 230 Drive wheel; 240 Guide wheel; 250 First road wheel; 260 Second road wheel; 270 Tensioner wheel; 280 Tensioning mechanism; 281 Screw; 282 Screw seat; 283 Tensioning arm;

[0048] 300 Lifting assembly; 310 First frame; 311 Rotating shaft; 320 Second frame; 330 Fork mechanism; 331 Back plate; 332 Fork blade; 333 Fork blade holder; 340 First drive mechanism; 350 Handrail; 360 Angle limiting mechanism; 361 Limiting toothed disc; 362 Positioning slot; 363 Limiting pin;

[0049] 400 Locking assembly; 410 Locking element; 411 Locking hole; 420 Electric latch;

[0050] 500 Control Components; 510 Vehicle Controller; 520 Travel Motor Controller; 530 Lifting Motor Controller; 540 Power Battery; 550 DC-DC Power Module. Detailed Implementation

[0051] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0052] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0053] Reference Figure 1 and Figure 2 In related technologies, to improve transportation efficiency, a multi-purpose transport vehicle based on a wheel-track interchangeable chassis is disclosed, mainly including: a chassis 1', a working device 2', a walking mechanism 3', a pedal 4', a vehicle body assembly 5', a drive motor 6', a hydraulic oil tank 7', an electro-hydraulic proportional multi-way valve 8', a remote control receiver 9', an instrument 10', a handle 11', a hand-held operating handle 12', a telescopic handrail 13', an emergency stop switch 14', a forklift control handle 15', an electronic control assembly 16', a power key switch 17', a lithium battery pack 18', and a hydraulic pump station 19'. The drive motor 6' is connected to a main drive wheel 601', and multiple auxiliary wheels 602' are arranged below the main drive wheel 601'. Tracks are provided outside the main drive wheel 601' and the auxiliary wheels 602'.

[0054] This multi-purpose transport vehicle can switch between forklift and trolley working modes. However, in actual use, when switching to trolley mode, the working device 2' needs to be removed. It cannot be switched directly, making the operation cumbersome and inefficient. Furthermore, in trolley working mode, the vehicle body will rotate back and forth around the drive wheel, and its self-balancing ability is insufficient. It is necessary to rely on manual force to apply force on the handle 11' to control the balance of the vehicle.

[0055] In view of this, to solve the problems of complex switching operations and insufficient self-balancing ability of transport vehicles in related technologies when switching between pushcart mode and forklift mode, this application provides a transport vehicle whose structure includes: a frame, a tracked walking assembly, and a lifting working assembly. The tracked walking assembly is disposed on both sides of the frame; the tracked walking assembly includes a mounting frame, tracks, drive wheels, guide wheels, a first road wheel, and a second road wheel; the mounting frame is connected to the frame; the drive wheel and guide wheel are respectively disposed at the top ends of the mounting frame; the first road wheel and the second road wheel are respectively disposed at the bottom ends of the mounting frame, located between the drive wheel and the guide wheel; the tracks surround the drive wheel, guide wheel, first road wheel, and second road wheel; the track between the first road wheel and the guide wheel forms a first track segment, and the track between the second road wheel and the first road wheel forms a second track segment; an angle is formed between the first track segment and the second track segment. The lifting working assembly is connected to the frame and can rotate relative to the frame, allowing the transport vehicle to switch between a first mode and a second mode. In the first mode, the first track section contacts the walking surface; in the second mode, the second track section contacts the walking surface. By flipping the lifting working assembly, the center of gravity of the entire vehicle is changed, thereby causing the track walking assembly to flip, changing the contact surface, and thus achieving mode switching. No manual disassembly or assembly is required throughout the process; only a flipping action is needed, making operation simple. Furthermore, in the second mode, the vehicle's center of gravity is between the two road wheels, resulting in larger approach and departure angles, reducing the tendency for the chassis to flip around the drive wheels; while in the first mode, the vehicle's center of gravity is between the guide wheel and the first road wheel. Regardless of the mode, the vehicle can achieve self-balancing.

[0056] Understandably, the first mode is forklift mode, and the second mode is cart mode.

[0057] The following is combined with Figures 3 to 18 The transport vehicle provided in this application will be described in detail through specific embodiments and application scenarios.

[0058] Reference Figures 3 to 8 This application provides a transport vehicle whose structure includes: a frame 100, a tracked walking assembly 200, and a lifting working assembly 300.

[0059] Reference Figure 3 , Figure 11 , Figure 12 and Figure 13The tracked travel assembly 200 is disposed on both sides of the frame 100; the tracked travel assembly 200 includes a mounting frame 210, a track 220, a drive wheel 230, a guide wheel 240, a first road wheel 250, and a second road wheel 260; the mounting frame 210 is connected to the frame 100; the drive wheel 230 and the guide wheel 240 are respectively disposed at both ends of the top of the mounting frame 210; the first road wheel 250 and the second road wheel 260 are respectively disposed at the bottom of the mounting frame 210. The track 220 is located at both ends of the drive wheel 230 and the guide wheel 240; the track 220 surrounds the drive wheel 230, the guide wheel 240, the first road wheel 250 and the second road wheel 260; the track 220 between the first road wheel 250 and the guide wheel 240 forms a first track segment 221, and the track 220 between the second road wheel 260 and the first road wheel 250 forms a second track segment 222; an angle is formed between the first track segment 221 and the second track segment 222.

[0060] Reference Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The lifting work assembly 300 is connected to the frame 100 and can be rotated relative to the frame 100 to drive the center of gravity of the transport vehicle to change, enabling the transport vehicle to switch between the first mode and the second mode.

[0061] Reference Figure 6 , Figure 7 and Figure 8 In the first mode, the first track section 221 contacts the running surface. (Refer to...) Figure 3 , Figure 4 and Figure 5 In the second mode, the second track section 222 contacts the walking surface.

[0062] Specifically, the lifting assembly 300 flips relative to the frame 100, driving a change in the vehicle's center of gravity. For example, when the second mode is required, i.e., the transport vehicle is in the first mode, the lifting assembly 300 flips backward, lowering and shifting the center of gravity. When the horizontal projection of the vehicle's center of gravity passes the contact point between the first road wheel 250 and the ground, the front of the vehicle begins to feel a backward-flipping torque. At this time, the pressure of the first track section 221 on the ground decreases rapidly. Under the action of the gravitational torque, the entire vehicle body begins to flip backward and upward about the first road wheel 250 as an instantaneous axis of rotation, causing the first track section 221 to completely leave the ground. Simultaneously, the second track section 222, connecting the first road wheel 250 and the second road wheel 260, gradually changes from an inclined state to a flat and compacted state as the vehicle body flips, and the center of gravity of the transport vehicle also moves to the area between the first road wheel 250 and the second road wheel 260. When the first mode is needed, i.e., the transport vehicle is in the second mode, the lifting assembly 300 flips forward, shifting the center of gravity projection forward and triggering a flipping torque at the rear of the vehicle. This causes the second track section 222 to lift off the ground until the first track section 221 changes from an inclined state to a flat, compacted ground. The transport vehicle's center of gravity also shifts to the area between the first road wheel 250 and the guide wheel 240. The entire switching process can be achieved simply by rotating the lifting assembly 300, making operation simple and thus helping to improve transportation efficiency. Furthermore, in the second mode, both the front and rear of the vehicle are raised, resulting in extremely large approach and departure angles. This allows the vehicle to easily cross ditches, rocks, steps, and steep slopes without "head-over" or "bottoming out," significantly improving its ability to traverse complex terrain compared to traditional wheeled or short-tracked equipment.

[0063] In the above embodiments, the two major functions of "loading and unloading" and "transfer" are integrated into the transport vehicle, realizing a continuous workflow from "unloading" to "arrival at the destination." This eliminates the ineffective time of multiple loading and unloading operations, equipment waiting, and collaborative scheduling in traditional methods, thereby helping to improve transportation efficiency. Furthermore, the mode switching is achieved by rotating the lifting working component 300 to drive the center of gravity of the transport vehicle, without the need for additional accessories or switching equipment, making the switching operation simple. In the first mode, the center of gravity of the transport vehicle is between the guide wheel 240 and the first road wheel 250; while in the second mode, the center of gravity of the transport vehicle is between the two road wheels, resulting in larger approach and departure angles, which can reduce the tendency of the frame 100 to overturn around the drive wheel 230. Whether in the first mode or the second mode, the transport vehicle can achieve self-balancing without manual intervention.

[0064] Understandably, the lifting work assembly 300 can be tilted to the rear of the vehicle body by a telescopic drive structure such as a hydraulic cylinder or an electric push rod.

[0065] In some embodiments, the length of the first track segment 221 is less than the length of the second track segment 222.

[0066] The shorter first track section 221 (connecting the guide wheel 240 and the first road wheel 250) means that in the first mode (forklift mode), when the lifting work assembly 300 tilts backward and the center of gravity shifts backward, only a small distance needs to be moved for its projection to quickly pass over the first road wheel 250, thus rapidly triggering the vehicle body to tilt backward. This shortens the start-up time for mode switching, making the switching process faster. The longer second track section 222 (connecting the first road wheel 250 and the second road wheel 260) means that in the second mode (pusher mode), the tracked walking assembly 200 and the walking surface have a larger ground contact area, enabling the transport vehicle to move stably.

[0067] Reference Figure 3 , Figure 9 and Figure 10 In some embodiments, the lifting work assembly 300 includes: a first frame 310, a second frame 320, a fork mechanism 330, and a first drive mechanism 340.

[0068] The first frame 310 is connected to the vehicle frame 100 at one end and can rotate relative to the vehicle frame 100. The second frame 320 is slidably connected to the first frame 310. The fork mechanism 330 is connected to the second frame 320. The first drive mechanism 340 is disposed on the first frame 310 and connected to the second frame 320 to drive the second frame 320 and the first frame 310 to slide relative to each other.

[0069] Specifically, one end of the first frame 310 is connected to the frame 100 via a rotating shaft 311, forming a flipping fulcrum; the other end of the first frame 310 is a free end. In the first mode, the first frame 310 is arranged vertically, forming an angle with the frame 100. In the second mode, the first frame 310 flips backward around the flipping fulcrum and contacts the frame 100.

[0070] The second frame 320 is a sliding and telescopic subframe installed on the first frame 310. It can be connected to the first frame 310 via mechanisms such as slide rails and sliders.

[0071] The fork mechanism 330 is the part that directly carries the goods and is installed on the second frame 320.

[0072] The first drive mechanism 340 is the power source that drives the second frame 320 to slide relative to the first frame 310. It can be a hydraulic cylinder, an electric push rod, or a lead screw.

[0073] In the above embodiment, the second frame 320 is driven to slide relative to the first frame 310 by the first drive mechanism 340, thereby driving the fork mechanism 330 to move synchronously. In this way, in the first mode, the lifting or lowering of goods can be completed, enabling the transport vehicle to have forklift functionality.

[0074] In some embodiments, the second frame 320 is provided with a grooved wheel, a chain is disposed on the grooved wheel, one end of which is connected to the first frame 310 and the other end is connected to the second frame 320, thereby driving the second frame 320 to move.

[0075] In some embodiments, the fork mechanism 330 includes a back plate 331 and at least two forks 332. The back plate 331 is connected to the second frame 320. The at least two forks 332 are connected to the back plate 331 via a fork holder 333. The fork holder 333 and the back plate 331 are detachably connected. Thus, in practical applications, the spacing between the forks 332 can be adjusted according to the structural form and size limitations of the goods to meet the loading needs of different goods, thereby enhancing the adaptability of the transport vehicle to different operating conditions and the flexibility of loading.

[0076] For example, the surface of the back plate 331 is pre-set with a groove or an array of positioning holes, and the fork holder 333 can slide along the groove or be installed with different positioning holes, thereby adjusting the spacing between the forks 332.

[0077] In some embodiments, the fork blade 332 and the fork blade holder 333 are hinged. This allows the fork blade 332 to be folded upwards or sideways when the vehicle is not in use for loading or unloading. This reduces the front or side profile dimensions of the fork mechanism 330 and even the entire vehicle, preventing snagging or collisions in jungles, aisles, warehouse doors, or vehicle cargo compartments, thereby improving the convenience and safety of the transport vehicle during movement and storage.

[0078] For example, when transporting or storing the whole machine, it can be adjusted to a trolley or forklift working mode according to the actual space. The first frame 310 and the fork mechanism 330 are adjusted to the lowest position, and the fork blades 332 are retracted to be parallel to the second frame 320. At this time, the overall size of the whole machine is the smallest.

[0079] In some embodiments, the back plate 331 and the second frame 320 are slidably connected. In other words, the fork mechanism 330 itself also has a lifting function. This increases the stroke of the fork mechanism 330. In practical applications, the other end of the chain is also connected to the back plate 331. Thus, since the chain length remains constant, the lifting speed of the fork mechanism 330 is twice that of the second frame 320.

[0080] In some embodiments, the lifting assembly 300 further includes a handrail 350. The handrail 350 is located at the other end of the first frame 310.

[0081] In the above embodiments, the handle 350 provides the operator with a convenient position to exert force, enabling them to more easily operate the lifting work assembly 300. For example, when the vehicle is switched to the second mode (pushing mode), the handle 350 can serve as the main handle for the operator to push and steer, allowing the operator to apply pushing, pulling, and steering forces in a natural posture.

[0082] Reference Figure 10 , Figure 14 , Figure 15 and Figure 16 In some embodiments, the transport vehicle also includes a locking assembly 400. The locking assembly 400 connects the lifting working assembly 300 and the frame 100 and can switch between a locked state and an unlocked state; in the locked state, the locking assembly 400 prevents the lifting working assembly 300 from rotating relative to the frame 100, thereby keeping the transport vehicle in its current mode; in the unlocked state, the lifting working assembly 300 is allowed to rotate for mode switching.

[0083] When the transport vehicle is in either the first or second mode, the locking assembly 400 is locked. In this state, the locking assembly 400 secures the lifting assembly 300 to the frame 100, preventing it from tipping over relative to the frame 100. This effectively prevents the lifting assembly 300 from accidentally tipping over due to road bumps, cargo center of gravity shifts, or operator error, thus preventing accidents such as cargo falling, equipment damage, and personal injury. When the transport vehicle needs to switch modes, the operator can unlock the locking assembly 400. In the unlocked state, the lifting assembly 300 is allowed to tip over to adjust to a mode suitable for different operating scenarios.

[0084] In the above embodiment, the locking assembly 400 includes a locking member 410 and an electric latch 420. The locking member 410 is provided with a locking hole 411 that cooperates with the electric latch 420; one of the locking member 410 and the electric latch 420 is disposed on the first frame 310, and the other is disposed on the vehicle frame 100.

[0085] In this way, when the transport vehicle is in the first or second mode, the electric latch 420 inserts into the locking hole 411 of the locking member 410, firmly connecting the lifting working component 300 to the frame 100, effectively preventing the lifting working component 300 from tipping over relative to the frame 100. When the transport vehicle needs to switch modes, the operator only needs to control the extension and retraction of the electric latch 420 through the control system to easily switch the locking component 400 between the locked and unlocked states.

[0086] Compared to the traditional manual locking method, the electric latch 420 is quicker and more convenient to operate, greatly shortening the mode switching time and improving the efficiency of transportation operations.

[0087] Understandably, the locking assembly 400 also includes an over-authorization release mechanism, which can manually release the locked state of the electric latch 420. During normal operation of the transport vehicle, the control system of the electric latch 420 may malfunction, such as a short circuit or damage to electronic components, causing the electric latch 420 to fail to unlock properly, locking the lifting assembly 300 in a certain position and affecting the normal operation of the transport. At this time, by operating the over-authorization release mechanism, the operator can manually release the locked state of the electric latch 420, restoring the lifting assembly 300 to its mobility, thereby enabling timely handling of emergencies, avoiding prolonged shutdowns due to equipment failure, and reducing the impact on the transport task.

[0088] In some embodiments, the first frame 310 is connected to the vehicle frame 100 via a rotating shaft 311; the lifting working assembly 300 further includes an angle limiting mechanism 360; the angle limiting mechanism 360 includes a limiting gear 361 and a limiting pin 363. The limiting gear 361 and the rotating shaft 311 are coaxially arranged; the limiting gear 361 is provided with a positioning slot 362. The limiting pin 363 passes through the positioning slot 362.

[0089] In the above embodiment, the first frame 310 is connected to the vehicle frame 100 via a rotating shaft 311, allowing the lifting working assembly 300 to rotate around the rotating shaft 311. The limiting gear 361 in the angle limiting mechanism 360 is coaxially arranged with the rotating shaft 311 and rotates synchronously with it. A limiting pin 363 passes through the positioning groove 362 of the limiting gear 361. Through the interaction between the limiting pin 363 and the positioning groove 362, the rotation angle of the first frame 310 (i.e., the lifting working assembly 300) is limited, ensuring that the rotation range of the lifting working assembly 300 is controllable.

[0090] For example, the angle of the lifting assembly 300 when it is vertically arranged is defined as 0°. The maximum backward rotation angle of the lifting assembly 300 is 25°. In other words, the lifting assembly 300 can rotate 25° backward about the rotation axis 311. The locking assembly 400 performs locking operations at the two extreme positions of 0° and 25°.

[0091] In some embodiments, the tracked walking assembly 200 further includes a tension wheel 270; the tension wheel 270 is disposed on top of the mounting bracket 210 and located between the drive wheel 230 and the guide wheel 240.

[0092] In practical applications, different operating scenarios require different track tension levels. For example, when traveling on flat roads, the track 220 can be slightly looser to reduce wear and energy consumption; however, in complex conditions such as climbing slopes and overcoming obstacles, a tighter track 220 is needed to provide greater traction. In this embodiment, by setting a tensioning wheel 270, the track tension can be flexibly adjusted according to actual working conditions, allowing the transport vehicle to better adapt to various complex environments and improving the equipment's versatility and adaptability.

[0093] In the above embodiment, the tracked walking assembly 200 further includes a tensioning mechanism 280; the tensioning mechanism 280 includes a screw 281, a screw seat 282, and a tensioning arm 283. The screw 281 is rotatably mounted on the mounting bracket 210. The screw seat 282 and the screw 281 are screwed together. One end of the tensioning arm 283 is connected to the screw seat 282, and the other end is connected to the tensioning wheel 270.

[0094] When the screw 281 rotates, according to the principle of threaded transmission, the screw seat 282 will move linearly along the axial direction of the screw 281. One end of the tensioning arm 283 is connected to the screw seat 282, and the other end is connected to the tensioning wheel 270. The linear movement of the screw seat 282 will drive the tensioning arm 283 to move, thereby changing the position of the tensioning wheel 270, and ultimately achieving the adjustment of the tension of the track 220.

[0095] In some embodiments, the frame 100 adopts a "cage-type frame body + skin covering" structure to meet the requirements of lightweighting. At the same time, the power battery 540, motor controller, wiring harness and other electrical components are arranged inside the frame 100, and a display screen and control switches and buttons can be arranged on the periphery of the frame 100.

[0096] In practical applications, the main body of the frame 100 is made of rectangular steel tubes welded together and then machined as a whole, which gives the frame 100 a high overall strength.

[0097] Reference Figure 3 , Figure 17 and Figure 18In some embodiments, the transport vehicle also includes a control component 500. This mainly comprises a vehicle controller 510, a travel motor controller 520, a lifting motor controller 530, a power battery 540, and a DC-DC (Direct Current) power module 550. The power battery 540 and the DC-DC power module 550 supply power to the travel motor controller 520, the lifting motor controller 530, the vehicle controller 510, and various low-voltage electrical components. The vehicle controller 510 receives forward, reverse, and steering signals, performs logical judgment and calculation, and outputs control signals to the travel motor controller 520 to achieve travel control. The vehicle controller 510 also receives lifting signals from the lifting working component 300, performs logical judgment and calculation, and outputs control signals to the lifting motor controller 530 to achieve lifting motor control.

[0098] Understandably, the various parts of the control component 500 cooperate closely with each other to form a highly integrated control system that requires no operator intervention, thus greatly reducing the difficulty of operation.

[0099] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0100] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a computer software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) and includes several instructions to cause a terminal (which may be a mobile phone, computer, server, or network device, etc.) to execute the methods of the various embodiments of this application.

[0101] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A transport vehicle, characterized in that, include: Frame; A tracked running gear is disposed on both sides of the vehicle frame; the tracked running gear includes a mounting frame, a track, a drive wheel, a guide wheel, a first road wheel, and a second road wheel; the mounting frame is connected to the vehicle frame; the drive wheel and the guide wheel are respectively disposed at both ends of the top of the mounting frame; the first road wheel and the second road wheel are respectively disposed at both ends of the bottom of the mounting frame, and located between the drive wheel and the guide wheel; the track surrounds the drive wheel, the guide wheel, the first road wheel, and the second road wheel; the track between the first road wheel and the guide wheel forms a first track segment, and the track between the second road wheel and the first road wheel forms a second track segment; an angle is formed between the first track segment and the second track segment; The lifting working assembly is connected to the vehicle frame and can be rotated relative to the vehicle frame, allowing the transport vehicle to switch between a first mode and a second mode; In the first mode, the first track segment contacts the walking surface; In the second mode, the second track segment contacts the running surface.

2. The transport vehicle according to claim 1, characterized in that, The length of the first track segment is less than the length of the second track segment.

3. The transport vehicle according to claim 1, characterized in that, The lifting working component includes: The first frame is connected to the vehicle frame at one end and can be rotated relative to the vehicle frame; The second frame is slidably connected to the first frame; The fork mechanism is connected to the second frame. A first drive mechanism is disposed on the first frame and connected to the second frame to drive the second frame and the first frame to slide relative to each other.

4. The transport vehicle according to claim 3, characterized in that, The forklift mechanism includes: The back panel is connected to the second frame. At least two forks are connected to the back plate via fork holders; The fork holder and the back plate are detachably connected, and / or the fork blade and the fork holder are hinged.

5. The transport vehicle according to claim 3, characterized in that, The lifting assembly also includes a handrail, located at the other end of the first frame.

6. The transport vehicle according to claim 3, characterized in that, The transport vehicle also includes a locking assembly that connects the lifting working assembly and the vehicle frame and can switch between a locked state and an unlocked state. In the locked state, the locking assembly prevents the lifting working assembly from tilting relative to the frame, thereby keeping the transport vehicle in its current mode; In the unlocked state, the lifting working component is allowed to flip to switch modes.

7. The transport vehicle according to claim 6, characterized in that, The locking assembly includes: a locking element and an electric latch; The locking member is provided with a locking hole that cooperates with the electric latch; One of the locking element and the electric latch is disposed on the first frame, and the other is disposed on the vehicle frame.

8. The transport vehicle according to claim 7, characterized in that, The first frame is connected to the vehicle frame via a rotating shaft; the lifting working assembly further includes an angle limiting mechanism; the angle limiting mechanism includes: A limiting gear plate is coaxially arranged with the rotating shaft; the limiting gear plate is provided with a positioning groove; The limiting pin is inserted into the positioning groove.

9. The transport vehicle according to any one of claims 1 to 8, characterized in that, The tracked walking assembly also includes a tensioning wheel; the tensioning wheel is disposed on the top of the mounting frame and located between the drive wheel and the guide wheel.

10. The transport vehicle according to claim 9, characterized in that, The tracked walking assembly further includes a tensioning mechanism; the tensioning mechanism includes: A screw is rotatably mounted on the mounting bracket; The screw seat is screwed to the screw rod; The tensioning arm is connected at one end to the screw seat and at the other end to the tensioning wheel.

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