Container straddle carrier

Abstract

The application provides a container straddle carrier. The container straddle carrier comprises a vehicle body mechanism, a lifting mechanism, at least two clamping mechanisms and at least two pre-lifting mechanisms; the lifting mechanism, the clamping mechanism and the pre-lifting mechanism are arranged on the vehicle body mechanism, the vehicle body mechanism drives the lifting mechanism, the clamping mechanism and the pre-lifting mechanism to walk, the pre-lifting mechanism moves relative to the vehicle body mechanism to extend to the top of the container and lift the container; the clamping mechanism is used for supporting the lifted container, and the lifting mechanism is used for driving part of the vehicle body mechanism to lift and drive the container supported by the clamping mechanism to lift synchronously. The container straddle carrier of the application solves the problem that the container is easy to be unhooked during the container transfer process, and avoids the safety hazard.

Description

Technical Field

[0001] This application relates to the field of container handling, and more particularly to a container straddle carrier. Background Technology

[0002] Container straddle carriers are the main type of container handling equipment, typically responsible for horizontal transport from the quay to the yard and for stacking containers in the yard.

[0003] In related technologies, container straddle carriers use spreader twistlock connections. The lifting of the wire rope drives the ratchet mechanism to rotate the twistlock, thereby achieving automatic opening and closing of the twistlock through the mechanical movement of the wire rope.

[0004] This method is simple in structure and lightweight, but it is prone to detachment and poses a safety hazard. Summary of the Invention

[0005] This application provides a container straddle carrier to solve the problem of containers easily becoming unhooked during transshipment, thus avoiding safety hazards.

[0006] The container straddle carrier provided in this application includes a vehicle body, a lifting mechanism, at least two clamping mechanisms, and at least two pre-lifting mechanisms.

[0007] The lifting mechanism, clamping mechanism, and pre-lifting mechanism are all mounted on the vehicle body mechanism. The vehicle body mechanism drives the lifting mechanism, clamping mechanism, and pre-lifting mechanism to move. The pre-lifting mechanism moves relative to the vehicle body mechanism to extend to the top of the container and lift the container.

[0008] The clamping mechanism is used to hold the container after it has been lifted, and the lifting mechanism is used to drive part of the vehicle body mechanism to lift and lower, and to drive the container held by the clamping mechanism to lift and lower synchronously.

[0009] In one possible implementation, the container straddle carrier provided in this application has a pre-lifting mechanism including a first drive member and a first clamping assembly. The first clamping assembly includes a first connecting rod and two robotic arms. The first connecting rod is mounted on the vehicle body mechanism, and the two robotic arms are slidably connected to the two ends of the first connecting rod, respectively. The first drive member drives the two robotic arms to move closer to or further away from each other to clamp or release the container.

[0010] In one possible implementation, the pre-lifting mechanism of the container straddle carrier provided in this application further includes a second driving component, and one end of the robotic arm has a mechanical block that is slidably connected to the robotic arm.

[0011] One end of the second drive unit is connected to the robotic arm, and the other end of the second drive unit is connected to the mechanical block. The second drive unit drives the mechanical block away from or towards the robotic arm so that the mechanical block is lifted or detached from the container.

[0012] In one possible implementation, the container straddle carrier provided in this application has an L-shaped mechanical block with grooves adapted to the container.

[0013] In one possible implementation, the container straddle carrier provided in this application has at least one of the first and second driving components as a hydraulic cylinder.

[0014] In one possible implementation, the container straddle carrier provided in this application has a clamping mechanism including a third drive member and two second clamping assemblies. The second clamping assemblies include a second connecting rod and two mechanical claws. The third drive member is disposed on the second connecting rod, which is disposed on the vehicle body mechanism. The two mechanical claws are slidably connected to the two ends of the second connecting rod respectively. The third drive member drives the two mechanical claws to move closer to each other or further away from each other to lift or detach the container after it has been lifted.

[0015] In one possible implementation, the container straddle carrier provided in this application has a first connecting rod and a second connecting rod arranged parallel to each other on the top of the vehicle body mechanism, and the length of the mechanical claw is greater than the length of the mechanical arm.

[0016] In one possible implementation, the container straddle carrier provided in this application has a vehicle body structure including a frame, the frame including an upper frame and a lower frame, the upper frame and the lower frame being slidably connected, the upper frame and the lower frame being connected by a lifting mechanism, the lifting mechanism driving the upper frame to rise and fall relative to the lower frame.

[0017] Both the clamping mechanism and the pre-lifting mechanism are mounted on the upper frame.

[0018] At least one clamping mechanism and at least one pre-lifting mechanism are respectively provided at both ends of the vehicle body mechanism in the direction of movement.

[0019] In one possible implementation, the container straddle carrier provided in this application has a lower frame including two support frames, and an upper frame having a top surface and two side surfaces located on both sides of the top surface, with the support frames and side surfaces connected in a one-to-one correspondence.

[0020] Both the clamping mechanism and the pre-lifting mechanism are located on the top surface and face the lower frame.

[0021] In one possible implementation, the container straddle carrier provided in this application further includes a walking assembly and a control assembly in its body structure. The walking assembly includes four walking wheels and a fourth drive member. The walking wheels are all located at the bottom of the underframe, and the fourth drive member is used to drive the walking wheels to rotate.

[0022] The walking assembly, lifting mechanism, gripping mechanism, and pre-lifting mechanism are all electrically connected to the control assembly.

[0023] The container straddle carrier provided in this application, by setting a lifting mechanism, a clamping mechanism, and a pre-lifting mechanism on the vehicle body, allows the lifting mechanism to drive a portion of the vehicle body to descend, while the pre-lifting mechanism moves relative to the vehicle body until its end extends to the top of the side panels of the container, clamping the container. The pre-lifting mechanism is then driven to rise relative to the vehicle body, raising the container a certain height off the ground. The clamping mechanism extends to the bottom of the pre-lifted container, supporting it. The lifting mechanism then drives a portion of the vehicle body to rise, thereby raising the clamping mechanism, which smoothly lifts the container, solving the problem of easy unhooking during container transport and avoiding safety hazards. Attached Figure Description

[0024] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] Figure 1 This is a structural schematic diagram of the container straddle carrier provided in an embodiment of this application.

[0026] Explanation of reference numerals in the attached figures:

[0027] 100 - Car body structure;

[0028] 110 - Frame;

[0029] 111-Upper frame; 1111-Top surface; 1112-Side surface; 112-Lower frame;

[0030] 120-Walking Components;

[0031] 121-Walking wheel; 122-Fourth drive component;

[0032] 130 - Control components;

[0033] 200 - Lifting mechanism;

[0034] 300 - Pre-lifting mechanism;

[0035] 310 - First driving component;

[0036] 320 - First clamping assembly;

[0037] 321-First connecting rod; 322-Mechanical arm; 323-Mechanical block; 3231-Groove;

[0038] 330 - Second drive unit;

[0039] 400 - Clamping mechanism;

[0040] 410 - Third drive component;

[0041] 420 - Second clamping assembly;

[0042] 421 - Second connecting rod; 422 - Mechanical claw.

[0043] The accompanying drawings have illustrated specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to specific embodiments. Detailed Implementation

[0044] First, those skilled in the art should understand that these embodiments are merely for explaining the technical principles of this application and are not intended to limit the scope of protection of this application. Those skilled in the art can make adjustments as needed to adapt to specific application scenarios.

[0045] Secondly, it should be noted that, in the description of this application, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0046] Furthermore, it should be noted that in the description of this application, the terms "upper," "lower," "front," "back," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0047] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0048] Container straddle carriers are mainly used for unloading containers from automated guided vehicles (AGVs) in feeder tunnels and for transferring containers from feeder tunnels to designated areas within warehouses. They can also be used for unloading and transferring containers within a central container warehouse. Currently, existing container straddle carriers typically use a spreader twistlock connection when lifting containers. This method is simple in structure and lightweight, but it is prone to unhooking, posing a safety hazard.

[0049] Based on this, the container straddle carrier provided in this application, by setting a lifting mechanism, a clamping mechanism, and a pre-lifting mechanism on the vehicle body structure, the lifting mechanism drives part of the vehicle body structure to descend, and the pre-lifting mechanism moves relative to the vehicle body structure until the end of the pre-lifting mechanism extends to the top of the side panels of the container to clamp the container; the driving part of the pre-lifting mechanism rises relative to the vehicle body structure, lifting the container off the ground at a certain height, and the clamping mechanism extends to the bottom of the pre-lifted container to support the container; the lifting mechanism drives part of the vehicle body structure to rise, thereby driving the clamping mechanism to rise, and the container is smoothly lifted by the clamping mechanism, which solves the problem of easy unhooking of containers during transportation and avoids safety hazards.

[0050] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, of the embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0051] See Figure 1 As shown, the container straddle carrier provided in this application includes a vehicle body 100, a lifting mechanism 200, at least two clamping mechanisms 400 and at least two pre-lifting mechanisms 300.

[0052] The lifting mechanism 200, the clamping mechanism 400, and the pre-lifting mechanism 300 are all mounted on the vehicle body mechanism 100. The vehicle body mechanism 100 drives the lifting mechanism 200, the clamping mechanism 400, and the pre-lifting mechanism 300 to move. The pre-lifting mechanism 300 moves relative to the vehicle body mechanism 100 to extend to the top of the container and lift the container.

[0053] The clamping mechanism 400 is used to hold the container after it has been lifted, and the lifting mechanism 200 is used to drive part of the vehicle body mechanism 100 to lift and lower, and to drive the container held by the clamping mechanism 400 to lift and lower synchronously.

[0054] It should be noted that the pre-lifting mechanism 300 can move up and down relative to the vehicle body mechanism 100 along the Z-direction or Z-reverse direction in the figure, and can also move horizontally along the Y-direction or Y-reverse direction in the figure.

[0055] Specifically, by setting a lifting mechanism 200, a clamping mechanism 400, and a pre-lifting mechanism 300 on the vehicle body mechanism 100, the lifting mechanism 200 drives part of the vehicle body mechanism 100 to descend, and part of the pre-lifting mechanism 300 moves relative to the vehicle body mechanism 100 until the end of the pre-lifting mechanism 300 extends to the top of the side panels of the container to clamp the container; then, the lifting mechanism 200 drives part of the pre-lifting mechanism 300 to rise relative to the vehicle body mechanism 100, raising the container a certain height off the ground, and extending the clamping mechanism 400 to the bottom of the pre-lifted container; the lifting mechanism 200 drives part of the vehicle body mechanism 100 to rise, thereby driving the clamping mechanism 400 to rise, so that the container is stably lifted by the clamping mechanism 400, solving the problem of easy unhooking of containers during transportation and avoiding safety hazards.

[0056] In some embodiments, the pre-lifting mechanism 300 includes a first driving member 310 and a first clamping assembly 320. The first clamping assembly 320 includes a first connecting rod 321 and two robotic arms 322. The first connecting rod 321 is disposed on the vehicle body mechanism 100. The two robotic arms 322 are slidably connected to the two ends of the first connecting rod 321 respectively. The first driving member 310 drives the two robotic arms 322 to move closer to each other or further away from each other to clamp or release the container.

[0057] Specifically, the first clamping assembly 320 is used to clamp the container, and the first driving member 310 is used to control the distance between the two robotic arms 322 of the first clamping assembly 320. The first driving member 310 is disposed above the first connecting rod 321, and the tops of the two robotic arms 322 are fixedly connected to the two ends of the first driving member 310 respectively.

[0058] Furthermore, the first drive unit 310 drives the two robotic arms 322 to move in opposite directions, increasing the distance between the two robotic arms 322 and detaching them from the container; the first drive unit 310 also drives the two robotic arms 322 to move towards each other, decreasing the distance between the two robotic arms 322 and gripping the container.

[0059] In some embodiments, the pre-lifting mechanism 300 further includes a second drive member 330, and one end of the robotic arm 322 has a mechanical block 323, which is slidably connected to the robotic arm 322.

[0060] One end of the second drive member 330 is connected to the robotic arm 322, and the other end of the second drive member 330 is connected to the mechanical block 323. The second drive member 330 drives the mechanical block 323 away from or near the robotic arm 322 so that the mechanical block 323 is lifted or detached from the container.

[0061] Specifically, the second drive unit 330 is used to control the height of the mechanical block 323 in the first clamping assembly 320. The container has corrugated plates on both sides. When the bottom of the container is close to the ground or the container is placed directly on the ground, the second drive unit 330 drives the mechanical block 323 to slide along the Z-direction or Z-reverse direction in the diagram, changing the height of the mechanical block 323 in the first clamping assembly 320 until the mechanical block 323 is flush with the top of the corrugated plates on both sides of the container, thus clamping the container.

[0062] Furthermore, the second drive unit 330 drives the mechanical block 323 to slide along the Z direction in the figure, and the height of the mechanical block 323 in the first clamping assembly 320 increases, thereby lifting the container.

[0063] In some embodiments, the mechanical block 323 is L-shaped and has a groove 3231 adapted to the container.

[0064] Specifically, the L-shaped mechanical block 323 extends into the trough where the container's top plate meets the corrugated plates on both sides. One side of the mechanical block 323 abuts against the corrugated plates of the container, and the other side abuts against the top plate of the container. As the mechanical block 323 is driven upward, the container is also lifted off the ground.

[0065] Furthermore, the mechanical block 323 has a groove 3231 that is adapted to the corrugated plate of the container, which can further improve the stability of the container pre-lifting process, prevent the container from slipping, and avoid safety hazards.

[0066] In some embodiments, at least one of the first drive member 310 and the second drive member 330 is a hydraulic cylinder.

[0067] It should be noted that a hydraulic cylinder is a hydraulic actuator that converts hydraulic energy into mechanical energy and performs linear reciprocating motion (or oscillating motion). It has a simple structure and reliable operation. When used to achieve reciprocating motion, a speed reduction device is unnecessary, and there is no transmission backlash, resulting in smooth movement. The output force of a hydraulic cylinder is directly proportional to the effective area of ​​the piston and the pressure difference between its two sides. A hydraulic cylinder basically consists of a cylinder barrel and cylinder head, a piston and piston rod, a sealing device, a buffer device, and an venting device.

[0068] Specifically, the first driving component 310 is a hydraulic cylinder. Through the reciprocating motion of the first driving component 310, the two robotic arms 322 are driven to slide along the positive Y direction and the negative Y direction in the figure, respectively, so that the two robotic arms 322 move closer to each other or further away from each other; the second driving component 330 is a hydraulic cylinder. Through the reciprocating motion of the second driving component 330, the mechanical block 323 is driven to slide along the positive Z direction or the negative Z direction in the figure, so that the mechanical block 323 moves closer to or further away from the robotic arm 322.

[0069] In some embodiments, the gripping mechanism 400 includes a third drive member 410 and two second gripping assemblies 420. Each second gripping assembly 420 includes a second connecting rod 421 and two mechanical claws 422. The third drive member 410 is disposed on the second connecting rod 421, which is disposed on the vehicle body mechanism 100. The two mechanical claws 422 are slidably connected to the two ends of the second connecting rod 421 respectively. The third drive member 410 drives the two mechanical claws 422 to move closer to or further away from each other to lift or release the lifted container.

[0070] Specifically, the third drive member 410 is used to control the width between the two mechanical claws 422 of the second clamping assembly 420. The third drive member 410 is disposed above the second connecting rod 421, and the tops of the two mechanical claws 422 are fixedly connected to the two ends of the third drive member 410 respectively.

[0071] Furthermore, the third drive unit 410 drives the two mechanical claws 422 to move in opposite directions, increasing the distance between the two mechanical claws 422 and causing the mechanical claws 422 to detach from the container; the third drive unit 410 then drives the two mechanical claws 422 to move towards each other, decreasing the distance between the two mechanical arms 322 and causing the mechanical claws 422 to extend to the bottom of the container and lift the container.

[0072] In some embodiments, the first connecting rod 321 and the second connecting rod 421 are arranged in parallel on the top of the vehicle body mechanism 100, and the length of the mechanical claw 422 is greater than the length of the mechanical arm 322.

[0073] It should be noted that the length of the mechanical claw 422 along the Z direction in the figure is greater than that of the mechanical arm 322, and the mechanical claw 422 is greater than the total length of the mechanical arm 322 and the mechanical block 323; the difference between the mechanical claw 422 and the total length of the mechanical arm 322 and the mechanical block 323 is greater than or equal to the height of the container.

[0074] Specifically, the first connecting rod 321 and the second connecting rod 421 are both located at the top of the vehicle body mechanism 100, and the tops of the gripping mechanism 400 and the pre-lifting mechanism 300 are at the same height; the length of the mechanical claw 422 is greater than the length of the mechanical arm 322, and the mechanical block 323 connected to the shorter mechanical arm 322 partially clamps in the troughs at the top of the corrugated plates on both sides of the container, lifting the container off the ground; the longer mechanical claw 422 extends to the bottom of the container and lifts the container.

[0075] Furthermore, the first connecting rod 321 and the second connecting rod 421 are arranged parallel to each other along the Y direction in the figure, that is, the first connecting rod 321 and the second connecting rod 421 are arranged in the same direction, so that after the mechanical block 323 connected to the robotic arm 322 lifts the container, the robotic claw 422 can hold it up.

[0076] In some embodiments, the vehicle body mechanism 100 includes a frame 110, which includes an upper frame 111 and a lower frame 112. The upper frame 111 and the lower frame 112 are slidably connected and connected by a lifting mechanism 200. The lifting mechanism 200 drives the upper frame 111 to rise and fall relative to the lower frame 112.

[0077] Both the clamping mechanism 400 and the pre-lifting mechanism 300 are mounted on the upper frame 111.

[0078] At least one clamping mechanism 400 and at least one pre-lifting mechanism 300 are respectively provided at both ends of the vehicle body mechanism 100 in the direction of movement.

[0079] Specifically, the lifting mechanism 200 drives the upper frame 111 to slide in the opposite direction of Z in the figure, the upper frame 111 descends relative to the lower frame 112, and the overall height of the vehicle body mechanism 100 decreases; the lifting mechanism 200 drives the upper frame 111 to slide in the forward direction of Z in the figure, the upper frame 111 rises relative to the lower frame 112, and the overall height of the vehicle body mechanism 100 increases.

[0080] Furthermore, the vehicle body mechanism 100 moves along the X-direction in the figure, and clamping mechanisms 400 are provided at both ends of the vehicle body mechanism 100 in the X-direction, so that the clamping mechanisms 400 and the container they hold move synchronously with the vehicle body mechanism 100 along the X-direction in the figure, thereby realizing the transfer of the container. Pre-lifting mechanisms 300 are provided at both ends of the vehicle body mechanism 100 in the X-direction, that is, the clamping mechanisms 400 and the pre-lifting mechanisms 300 are arranged in the same direction, so that the clamping mechanisms 400 can hold the container after it has been lifted by the pre-lifting mechanisms 300.

[0081] In some embodiments, the lower frame 112 includes two support frames, and the upper frame 111 has a top surface 1111 and two side surfaces 1112 located on both sides of the top surface 1111, with the support frames and side surfaces 1112 connected in a one-to-one correspondence.

[0082] Both the clamping mechanism 400 and the pre-lifting mechanism 300 are mounted on the top surface 1111 and face the lower frame 112.

[0083] Specifically, the two support frames of the lower frame 112 correspond one-to-one with the two sides 1112 of the upper frame 111, and the two support frames provide stable support for the upper frame 111.

[0084] Furthermore, the first connecting rod 321 of the pre-lifting mechanism 300 is disposed on the top surface 1111 of the upper frame 111. Two robotic arms 322 are connected to the two ends of the first connecting rod 321 in the opposite direction along the Z direction in the figure. The two robotic arms 322 are located on the two sides 1112 of the upper frame 111, and the pre-lifting mechanism 300 faces the lower frame 112 as a whole. The container is located between the two support frames, and the pre-lifting mechanism 300 can lift the container located between the two support frames off the ground.

[0085] Furthermore, the second connecting rod 421 of the gripping mechanism 400 is disposed on the top surface 1111 of the upper frame 111. Two mechanical claws 422 are connected to both ends of the second connecting rod 421 in the opposite direction along the Z direction in the figure. The two mechanical claws 422 are located on the two sides 1112 of the upper frame 111, and the gripping mechanism 400 faces the lower frame 112 as a whole. The mechanical claws 422 of the gripping mechanism 400 extend to the bottom of the pre-lifted container, thereby supporting the container.

[0086] In some embodiments, the vehicle body mechanism 100 further includes a walking component 120 and a control component 130. The walking component 120 includes four walking wheels 121 and a fourth drive member 122. The walking wheels 121 are all located at the bottom of the lower frame 112, and the fourth drive member 122 is used to drive the walking wheels 121 to rotate.

[0087] The walking component 120, lifting mechanism 200, clamping mechanism 400 and pre-lifting mechanism 300 are all electrically connected to the control component 130.

[0088] It should be noted that the fourth drive unit 122 is driven by an electric motor and connected to the frame 110. The fourth drive unit 122 is powered by a modularly assembled battery and an external power source, including a torque converter, gearbox, and drive axle, to provide power to the straddle carrier and enable the straddle carrier to be in an operational state.

[0089] Specifically, the four wheels 121 located at the bottom of the lower frame 112 are driven to rotate by the fourth drive unit 122. This can drive the wheels 121 to move forward or backward along the X direction in the figure, thereby realizing the forward or backward movement of the wheels 121; it can also drive the wheels 121 to move forward or backward along the Y direction in the figure, thereby realizing the steering of the wheels 121.

[0090] Furthermore, the control component 130 is mounted on the frame 110 and is electrically connected to the walking component 120, the lifting mechanism 200, the clamping mechanism 400, and the pre-lifting mechanism 300, and controls them respectively.

[0091] The usage process of the container straddle carrier provided in the embodiments of this application will be described.

[0092] The control component 130 controls the walking component 120 to drive the walking wheels 121 to move, so that the upper frame 111 moves to the top of the container, at which point the container is located between the two lower frames 112.

[0093] The lifting mechanism 200 drives the upper frame 111 to slide in the opposite direction of Z in the figure. The first drive member 310 of the pre-lifting mechanism 300 drives the two robotic arms 322 to slide in the forward and reverse directions of Y in the figure, respectively. The second drive member 330 of the pre-lifting mechanism 300 drives the mechanical block 323 to slide in the forward or reverse direction of Z in the figure until the mechanical block 323 extends into the trough where the container top plate and the corrugated plates on both sides meet. The second drive member 330 drives the mechanical block 323 to slide in the Z direction in the figure, the height of the mechanical block 323 increases, and the container is lifted off the ground.

[0094] The third drive unit 410 of the gripping mechanism 400 drives the two mechanical claws 422 to slide along the forward and reverse Y directions in the figure, respectively, until the mechanical claws 422 can reach the bottom of the container; the lifting mechanism 200 drives the upper frame 111 to slide along the Z direction in the figure, the height of the mechanical claws 422 increases, and the container is lifted.

[0095] The control component 130 controls the walking component 120, drives the walking wheels 121, and moves the straddle carrier to the designated location to complete the transfer of containers.

[0096] In summary, the container straddle carrier provided in this application solves the problem of easy unhooking during container transfer by setting a lifting mechanism 200, a clamping mechanism 400, and a pre-lifting mechanism 300 on the vehicle body 100. The lifting mechanism 200 drives part of the vehicle body 100 to descend, and the pre-lifting mechanism 300 moves relative to the vehicle body 100 until the end of the pre-lifting mechanism 300 extends to the top of both sides of the container to clamp the container. The driving part of the pre-lifting mechanism 300 rises relative to the vehicle body 100, raising the container a certain height off the ground. The clamping mechanism 400 extends to the bottom of the pre-lifted container and supports the container. The lifting mechanism 200 drives part of the vehicle body 100 to rise, thereby driving the clamping mechanism 400 to rise. The container is smoothly lifted by the clamping mechanism 400, which solves the problem of easy unhooking during container transfer and avoids safety hazards.

[0097] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0098] It is understood that the various numerical designations used in the embodiments of this application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of this application.

[0099] The technical solutions of this application have been described above with reference to the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the scope of protection of this application is obviously not limited to these specific embodiments. Without departing from the principles of this application, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the scope of protection of this application.

Claims

1. A container straddle carrier, characterized in that, Includes a vehicle body mechanism, a lifting mechanism, at least two clamping mechanisms, and at least two pre-lifting mechanisms; The lifting mechanism, the clamping mechanism, and the pre-lifting mechanism are all mounted on the vehicle body mechanism. The vehicle body mechanism drives the lifting mechanism, the clamping mechanism, and the pre-lifting mechanism to move. The pre-lifting mechanism moves relative to the vehicle body mechanism to extend to the top of the container and lift the container. The clamping mechanism is used to hold the container after it has been lifted, and the lifting mechanism is used to drive part of the vehicle body mechanism to rise and fall, and to drive the container held by the clamping mechanism to rise and fall synchronously. The pre-lifting mechanism includes a first driving member and a first clamping assembly. The first clamping assembly includes a first connecting rod and two robotic arms. The first connecting rod is disposed on the vehicle body mechanism. The two robotic arms are slidably connected to the two ends of the first connecting rod, respectively. The first driving member drives the two robotic arms to move closer to each other or further away from each other in order to clamp or release the container. The pre-lifting mechanism further includes a second driving component, and one end of the robotic arm has a mechanical block that is slidably connected to the robotic arm. One end of the second drive unit is connected to the robotic arm, and the other end of the second drive unit is connected to the mechanical block. The second drive unit drives the mechanical block away from or towards the robotic arm so that the mechanical block is lifted or detached from the container. The clamping mechanism includes a third driving member and two second clamping assemblies. Each second clamping assembly includes a second connecting rod and two mechanical claws. The third driving member is mounted on the second connecting rod, which is mounted on the vehicle body mechanism. The two mechanical claws are slidably connected to both ends of the second connecting rod. The third driving member drives the two mechanical claws to move closer to or further away from each other to lift or release the container after it has been lifted.

2. The container straddle carrier according to claim 1, characterized in that, The mechanical block is L-shaped and has grooves that are adapted to the container.

3. The container straddle carrier according to claim 1, characterized in that, At least one of the first driving member and the second driving member is a hydraulic cylinder.

4. The container straddle carrier according to claim 1, characterized in that, The first connecting rod and the second connecting rod are arranged parallel to each other on the top of the vehicle body mechanism, and the length of the mechanical claw is greater than the length of the mechanical arm.

5. The container straddle carrier according to any one of claims 1-4, characterized in that, The vehicle body structure includes a frame, which includes an upper frame and a lower frame. The upper frame and the lower frame are slidably connected. The upper frame and the lower frame are connected through a lifting mechanism, which drives the upper frame to move up and down relative to the lower frame. Both the clamping mechanism and the pre-lifting mechanism are mounted on the upper frame; At least one clamping mechanism and at least one pre-lifting mechanism are respectively provided at both ends of the vehicle body mechanism in the direction of movement.

6. The container straddle carrier according to claim 5, characterized in that, The lower frame includes two support frames, and the upper frame has a top surface and two side surfaces located on both sides of the top surface. The support frames are connected to the side surfaces one by one. Both the clamping mechanism and the pre-lifting mechanism are disposed on the top surface and face the lower frame.

7. The container straddle carrier according to claim 6, characterized in that, The vehicle body mechanism also includes a walking component and a control component. The walking component includes four walking wheels and a fourth drive component. The walking wheels are all located at the bottom of the lower frame, and the fourth drive component is used to drive the walking wheels to rotate. The walking component, the lifting mechanism, the gripping mechanism, and the pre-lifting mechanism are all electrically connected to the control component.

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