Container spreader and container hoisting system

Abstract

This application provides a container spreader and a container lifting system. The spreader includes a lifting bracket and multiple lifting assemblies, each mounted on a lifting position of the lifting bracket. Each lifting assembly includes a support member, a first telescopic member, a hook-up member, and a second telescopic member. The support member is connected to the lifting bracket and is laterally movable. The support member has first and second perpendicular positioning surfaces, which are respectively used to abut against adjacent sides of a lock hole at the top corner of the container for positioning. The first telescopic member drives the support member to move closer to or away from the lock hole. The hook-up member is movably mounted and has a hook connector. The second telescopic member drives the hook-up member to move so that the hook connector passes through the first or second positioning surface and inserts into the lock hole. The container spreader provided by this application accurately positions the hook-up member at the lock hole by moving the positioning surfaces on the support member, allowing the hook-up member to quickly engage with the lock hole, thereby improving lifting efficiency.

Description

Technical Field

[0001] This application relates to the field of container lifting technology, and in particular to a container spreader and a container lifting system. Background Technology

[0002] A container is a set of tools that can carry packaged or unpackaged goods for transportation and is easy to load and unload using mechanical equipment. It is widely used in ports, warehouses, factories and other places.

[0003] Currently, container spreaders lock themselves in place by engaging locks with the four corner lock holes on the container during the lifting process.

[0004] However, in actual operation, the locks on the spreader are not easy to align with the lock holes at the top corners of the container for locking, especially when the line of sight is obstructed or in adverse environmental conditions. It is even more difficult to lock them, and the position of the spreader needs to be adjusted several times to make the locks align with the lock holes, which affects the lifting efficiency of the container. Summary of the Invention

[0005] This application provides a container spreader and a container lifting system to solve the problem that the spreader is not easy to lock in position with the container when lifting it.

[0006] To achieve the above objectives, in a first aspect, this application provides a container spreader for front-end lifting of containers, the container spreader including a lifting bracket and multiple lifting assemblies;

[0007] The lifting support has lifting positions corresponding to each corner of the container top, and each lifting component is set on each lifting position.

[0008] The hoisting assembly includes a support member, a first telescopic member, a hook member, and a second telescopic member. The support member is connected to the hoisting bracket and is movably mounted laterally. The support member has a first positioning surface and a second positioning surface that are perpendicular to each other. The first positioning surface and the second positioning surface are respectively used to abut against the two adjacent sides of the lock hole at the top corner of the container for positioning. The first telescopic member is connected to the support member and is used to drive the support member to move closer to or away from the lock hole.

[0009] The mounting bracket is movably connected to the support member, and the mounting bracket is provided with a hook head that matches the lock hole; the second telescopic member is connected to the mounting bracket and is used to drive the mounting bracket to move so that the hook head passes through the first positioning surface or the second positioning surface and is inserted into the lock hole.

[0010] In one possible implementation, the hook is rotatably mounted on the support about a transverse axis, with a hook connector at one end of the hook away from the rotation center, and the other end of the hook away from the rotation center is rotatably connected to a second telescopic member. The second telescopic member drives the hook to rotate so that the hook connector is inserted into the lock hole.

[0011] In one possible implementation, the hanging assembly further includes a first connecting plate and a second connecting plate, one end of the first connecting plate and one end of the second connecting plate are rotatably connected to the second telescopic member, the other end of the first connecting plate is rotatably connected to the end of the hook member that is opposite to the hook joint, and the other end of the second connecting plate is rotatably connected to the support member.

[0012] When the second telescopic component drives the hook to rotate so that the hook is inserted into the lock hole, the first connecting plate and the second connecting plate are on the same straight line.

[0013] In one possible implementation, the hanging assembly further includes a first elastic reset member and a second elastic reset member, the first elastic reset member being connected to the support member and used to elastically tighten the first positioning face in the direction close to the lock hole side;

[0014] The second elastic reset member is connected to the support member and is used to elastically tighten the second positioning face in the direction of the adjacent side of the lock hole.

[0015] In one possible implementation, the first telescopic member is mounted on the hoisting bracket and extends and retracts along the direction of the angle between the first elastic reset member and the second elastic reset member.

[0016] In one possible implementation, the support member is provided with a limiting groove along the direction of the included angle between the first elastic reset member and the second elastic reset member, and the hoisting bracket at the hoisting station is provided with a limiting member that is clearance-fitted with the limiting groove.

[0017] In one possible implementation, a blocking part is provided above the side of the hook that is away from the hook.

[0018] In one possible implementation, a gripping assembly is also included, comprising a gripper and a gripping drive. The gripper is connected to the lifting bracket and is laterally movable. The lower end of the gripper has a gripping part for supporting the bottom of the container or inserting into a fork slot near the bottom of the container.

[0019] The gripping drive is connected to the gripper and is used to drive the gripper to move.

[0020] Secondly, this application also provides a container lifting system, including a container and any of the possible container spreaders provided in the first aspect;

[0021] Lock holes are provided on the sides of each corner of the top of the container. The hook-up parts are hooked up by inserting the hook-up connectors into the lock holes.

[0022] In one possible implementation, it also includes a first lateral movement component, a second lateral movement component, and a lifting component;

[0023] The container spreader is connected to the second lateral movement assembly via a lifting assembly. The lifting assembly is used for lifting and lowering the container, and the second lateral movement assembly is used to drive the container to move along the second lateral direction via the lifting assembly.

[0024] The second lateral movement component is connected to the first lateral movement component, and the first lateral movement component is used to drive the container to move along the first lateral direction through the second lateral movement component and the lifting component.

[0025] The first lateral direction is parallel to the length direction of the container, and the second lateral direction is parallel to the width direction of the container.

[0026] The container spreader and container lifting system provided in this application are used for front-end lifting of containers. The container spreader includes a lifting bracket and multiple lifting assemblies. The lifting bracket provides a lifting foundation and an installation foundation for the lifting assemblies. The lifting assemblies, positioned at the lifting station on the lifting bracket, are used to engage with the lock holes at the top corner of the container. Each lifting assembly includes a support member, a first telescopic member, a hook-in member, and a second telescopic member. The support member is connected to the lifting bracket and is laterally movable. The support member has a first and second perpendicular positioning surface. Positioning is achieved by the first and second positioning surfaces on each movable support member abutting against adjacent sides of the lock holes at the top corner of the container. The support member is driven to move closer to or further away from the lock holes by the first telescopic member. The lock holes are engaged by hook-in members on the support member; specifically, the second telescopic member drives the hook-in member to insert into or remove from the lock hole. By using independently movable support components at each hoisting station of the hoisting bracket, and accurately positioning the lock holes through the positioning surfaces on the support components, it is easy to quickly attach the hook components to the lock holes, reducing the difficulty of operation and thus improving hoisting efficiency. Attached Figure Description

[0027] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0028] Figure 1 This is a schematic diagram of the structure of the container spreader provided in the embodiments of this application;

[0029] Figure 2 for Figure 1 A sectional view of section AA in the middle;

[0030] Figure 3 for Figure 2A sectional view of section BB in the middle;

[0031] Figure 4 for Figure 2 A sectional view of the CC section;

[0032] Figure 5 This is a schematic diagram of the container spreader provided in the embodiments of this application in the lifting state;

[0033] Figure 6 for Figure 5 Enlarged view at point D;

[0034] Figure 7 This is a schematic diagram of the container spreader system provided in an embodiment of this application.

[0035] Figure label:

[0036] 10: Container;

[0037] 20: Keyhole;

[0038] 30: Forklift slot;

[0039] 100: Lifting bracket;

[0040] 110: Lifting station;

[0041] 120: Limiting component;

[0042] 200: Hanging assembly;

[0043] 210: Support component;

[0044] 211: First positioning surface;

[0045] 212: Second positioning surface;

[0046] 213: Limiting groove;

[0047] 220: First telescopic component;

[0048] 230: Hook and connector;

[0049] 231: Connector;

[0050] 232: Blocking part;

[0051] 240: Second telescopic component;

[0052] 250: First connecting plate;

[0053] 260: Second connecting plate;

[0054] 270: First elastic reset element;

[0055] 280: Second elastic reset element;

[0056] 300: Crawler component;

[0057] 310: Grasping hand;

[0058] 320: Grab driver;

[0059] 400: First lateral movement component;

[0060] 500: Second lateral movement component;

[0061] 600: Lifting assembly.

[0062] The accompanying drawings illustrate 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 particular embodiments. Detailed Implementation

[0063] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0064] A container is a set of tools that can carry packaged or unpackaged goods for transportation and is easy to load and unload using mechanical equipment. It is widely used in ports, warehouses, factories and other places.

[0065] Currently, container spreaders lock themselves onto containers by engaging locks with the four corner lock holes on the container. This is the common practice of container reach stackers, such as container reach cranes and overhead cranes. Positioning is required during lifting, and currently, this is mostly done by the operator's visual inspection or by using cameras.

[0066] However, in practice, the locking heads on the spreader are not easily aligned with the locking holes at the corners of the container, especially when visibility is obstructed or in adverse environmental conditions. Several adjustments to the spreader's position are often required to align the locking heads with the locking holes. The position of the locking heads on the spreader is relatively fixed, and they can only move along the length of the spreader, exhibiting poor self-adjusting locking capabilities. Furthermore, most current spreaders primarily use wire ropes and hooks for lifting, a method prone to swaying and difficult to accurately position, requiring manual assistance. This affects container lifting efficiency and makes them unsuitable for high-efficiency lifting applications.

[0067] To address the aforementioned problem of existing spreaders being difficult to position and lock with containers, this application provides a container spreader comprising a lifting support and multiple lifting assemblies. The lifting support has lifting positions corresponding to the corners of the container's top, and each lifting assembly is respectively positioned at one of these lifting positions. Each lifting assembly includes a support member, a first telescopic member, a hook-in member, and a second telescopic member. The support member is connected to the lifting support and is laterally movable. The support member has a first positioning surface and a second positioning surface that are perpendicular to each other. The first and second positioning surfaces are respectively used to abut against the two adjacent sides of the lock hole at the top corner of the container for positioning. The first telescopic member is connected to the support member and is used to drive the support member to move closer to or away from the lock hole. The hook-in member is movably connected to the support member and has a hook connector that matches the lock hole. The second telescopic member is connected to the hook-in member and is used to drive the hook-in member to move so that the hook connector passes through the first or second positioning surface and inserts into the lock hole. Compared to existing technologies that use locks in relatively fixed positions to engage with lock holes on containers, when using the container spreader and lifting equipment provided in this application to lift containers, the lifting bracket contacts the top of the container. Under the action of the first telescopic member, the support members at each lifting station adaptively abut against the lock holes through the positioning surfaces on the support members, thereby achieving accurate positioning. This facilitates the quick engagement of the hook-and-attach member with the lock hole under the action of the second telescopic member, reducing the difficulty of operation and thus improving the lifting efficiency.

[0068] The technical solution of this application will be described in detail below with reference to the accompanying drawings and several specific embodiments. It is understood that the following embodiments can be combined or used individually.

[0069] Figure 1 This is a schematic diagram of the structure of the container spreader provided in the embodiments of this application; Figure 2 for Figure 1 A sectional view of section AA in the middle; Figure 3 for Figure 2 A sectional view of section BB in the middle; Figure 4 for Figure 2 A sectional view of the CC section; Figure 5 This is a schematic diagram of the container spreader provided in the embodiments of this application in the lifting state; Figure 6 for Figure 5 Enlarged view of point D in the middle.

[0070] Please refer to Figures 1-6 As shown, the container spreader provided in this embodiment is used for front lifting of container 10. The container spreader includes a lifting bracket 100 and multiple lifting components 200.

[0071] The lifting support 100 has lifting positions 110 that correspond one-to-one with each corner of the top of the container 10, and each lifting component 200 is respectively set on each lifting position 110.

[0072] The hanging assembly 200 includes a support member 210, a first telescopic member 220, a hook member 230, and a second telescopic member 240. The support member 210 is connected to the lifting bracket 100 and is movably arranged laterally. The support member 210 is provided with a first positioning surface 211 and a second positioning surface 212 that are perpendicular to each other. The first positioning surface 211 and the second positioning surface 212 are respectively used to abut against the two adjacent sides of the lock hole 20 at the top corner of the container 10 for positioning. The first telescopic member 220 is connected to the support member 210 and is used to drive the support member 210 to move closer to or away from the lock hole 20.

[0073] The hook member 230 is movably connected to the support member 210, and the hook member 230 is provided with a hook connector 231 that matches the lock hole 20; the second telescopic member 240 is connected to the hook member 230 and is used to drive the hook member 230 to move so that the hook connector 231 passes through the first positioning surface 211 or the second positioning surface 212 and is inserted into the lock hole 20.

[0074] In this embodiment, as Figure 1 , Figure 5 As shown, the lifting support 100 provides a foundation for lifting and also provides an installation foundation for the lifting assembly 200. The lifting support 100 can be a rectangular frame structure adapted to the top surface of the container 10. The lifting support 100 has a connecting part that connects to the moving end of the lifting equipment, allowing the lifting equipment to lift and move the lifting support 100 laterally. The lifting support 100 has lifting positions 110 corresponding to each corner of the top of the container 10. During lifting, each lifting position 110 can be used to align with the corners of the top of the container 10. The center position formed by the four lifting positions 110 is the lifting center, and the connecting part can be located at the lifting center.

[0075] like Figure 2 As shown, the lifting assembly 200 is used for positioning and attaching to the locking holes 20 at each corner of the top of the container 10. Therefore, one lifting assembly 200 is provided at each lifting station 110 to position and attach to the locking holes 20 at the four corners of the top of the container 10. The lifting assembly 200 includes a support member 210, a first telescopic member 220, a hook member 230, and a second telescopic member 240.

[0076] like Figure 2 , Figure 3 As shown, the support member 210 is laterally movable on the lifting bracket 100, and it can move along the width and length directions of the container 10. For example, Figure 1The coordinate system is a right-handed Cartesian coordinate system. X represents the length direction of container 10, Y represents the width direction of container 10, and Z represents the height direction of container 10. By making surface contact between the bottom surface of support member 210 and the top surface of lifting bracket 100, support member 210 can move arbitrarily in the transverse plane on lifting bracket 100, that is, support member 210 can move in the plane formed by XY axis.

[0077] It should be noted that the aforementioned movable structure also requires a limiting mechanism between the support member 210 and the hoisting bracket 100 to prevent the support member 210 from falling off the hoisting bracket 100. Of course, other forms of movable structures can also be used, as long as they can allow the support member 210 to move arbitrarily in the lateral plane on the hoisting bracket 100. This embodiment does not impose too many restrictions.

[0078] like Figure 2 , Figure 3 As shown, the support member 210 has a first positioning surface 211 and a second positioning surface 212 that are perpendicular to each other. The first positioning surface 211 and the second positioning surface 212 correspond to the two adjacent sides at the position of the lock hole 20 at the top corner of the container 10. Here, the side refers to the facade.

[0079] The first telescopic member 220 is used to drive the support member 210 to move away from or towards the lock hole 20. For example, one end of the first telescopic member 220 is connected to the hoisting bracket 100, and the other end is connected to the support member 210. The first telescopic member 220 extends and retracts along the inclined direction of the plane between the first positioning surface 211 and the second positioning surface 212. In this way, the first telescopic member 220 can drive the support member 210 to move away from or towards the lock hole 20. The first telescopic member 220 can be a component with telescopic function, such as a hydraulic cylinder, pneumatic cylinder, or electric push rod.

[0080] Of course, such as Figure 3 As shown, other telescopic drive mechanisms can also be used. For example, the first telescopic member 220 is fixedly mounted on the lifting bracket 100. The first telescopic member 220 extends and retracts along the inclined direction of the plane between the first positioning surface 211 and the second positioning surface 212. When the telescopic end of the first telescopic member 220 extends outward, it abuts against the support member 210, driving the support member 210 to move away from the lock hole 20. In addition, the lifting bracket 100 and the support member 210 are connected by a return spring, which returns the support member 210 to its original position and tightens it. In this way, when the telescopic end of the first telescopic member 220 retracts, the support member 210 can also move towards the lock hole 20 under the action of the return spring. In this embodiment, no particular telescopic drive mechanism is restricted in which one is used.

[0081] The support member 210 is provided with a movable hook member 230, and the hook member 230 is provided with a hook connector 231 that matches the lock hole 20. In some examples, the hook member 230 is laterally movable on the support member 210, moving closer to or further away from the lock hole 20. The second telescopic member 240 is provided on the support member 210, and the telescopic end of the second telescopic member 240 is connected to the hook member 230. The telescopic direction of the second telescopic member 240 is consistent with the moving direction of the hook member 230. In this way, when the second telescopic member 240 telescopics, it can drive the hook member 230 to move so that the hook connector 231 is inserted into the lock hole 20, or so that the hook connector 231 is pulled out of the lock hole 20. The second telescopic member 240 can also be a component with telescopic function, such as a hydraulic cylinder, a pneumatic cylinder, or an electric push rod.

[0082] In other examples, such as Figure 2 As shown, the hook-on member 230 is rotatably mounted on the support member 210, and the hook connector 231 is located away from the rotating end of the hook-on member 230. One end of the second telescopic member 240 is connected to the support member 210, and the telescopic end of the second telescopic member 240 is rotatably connected to the hook-on member 230. In this way, when the second telescopic member 240 extends and retracts to drive the hook-on member 230 to rotate, the hook connector 231 can be inserted into the lock hole 20 or pulled out of the lock hole 20.

[0083] It is important to note that, such as Figure 2 As shown, through holes or notches must be made at the contact points between the first positioning surface 211, the second positioning surface 212 and the lock hole 20 so that the hook connector 231 can pass through the through holes or notches to avoid interference.

[0084] Furthermore, the hanging mechanism composed of the hook-up member 230 and the second telescopic member 240 can be arranged in groups, with at least one group provided in each hanging assembly 200, such as... Figure 4 As shown, a set of hanging mechanisms are respectively set for the lock holes 20 on the two facades, which makes the hanging more stable.

[0085] The following describes the working process of the container spreader in this embodiment during specific lifting operations.

[0086] First, the second telescopic member 240 causes the hook joint 231 of the hook member 230 to be in a retracted state and not to hook. At the same time, the first telescopic member 220 extends out of the drive support member 210 and moves away from the lock hole 20, so that the first positioning surface 211 and the second positioning surface 212 on each hanging component 200 are at the maximum distance from the lock hole 20.

[0087] Secondly, such as Figure 5 , Figure 6As shown, the lifting equipment moves the spreader above the container 10, so that each lifting station 110 is roughly aligned with the top corner of the container 10. The spreader is then lowered until the lifting support 100 contacts the top of the container 10. The first telescopic member 220 retracts, causing the support member 210 to move towards the lock hole 20. The first positioning surface 211 and the second positioning surface 212 contact the two adjacent sides of the lock hole 20 for positioning. After that, the second telescopic member 240 extends, causing the hook joint 231 of the hook member 230 to be inserted into the lock hole 20 to achieve hooking.

[0088] Finally, the lifting equipment can lift the spreader to transport the container 10. After it reaches the destination, the second telescopic member 240 drives the hook joint 231 of the hook member 230 to retract, and the first telescopic member 220 extends to drive the support member 210 to move away from the locking hole 20, thereby separating the spreader from the container 10.

[0089] Understandably, compared to the existing technology that uses a relatively fixed lock head to engage with the lock hole on the container, the spreader in this embodiment, during the positioning process, uses the independently movable support members 210 on the lifting station 110, and the first positioning surface 211 and the second positioning surface 212 on each support member 210 to accurately position the lock hole 20. This adaptive, moving alignment positioning ensures accurate positioning of the lock holes 20 at the four corners of the container 10. In particular, after prolonged use, when the top of the container 10 deforms and the lock hole 20 is no longer in the regular rectangular corner position, the spreader in this embodiment can adaptively and quickly position the deformed and displaced lock hole 20, facilitating the quick engagement of the hook member 230 with the lock hole 20, reducing operational difficulty, and thus improving lifting efficiency.

[0090] The container spreader provided in this embodiment is used for front lifting of container 10. The container spreader includes a lifting bracket 100 and multiple lifting assemblies 200. The lifting bracket 100 provides a lifting foundation and an installation foundation for the lifting assemblies 200. The lifting assemblies 200, which are set on the lifting positions 110 of the lifting bracket 100, are used to attach to the locking holes 20 at the top corners of the container 10. The hoisting assembly 200 includes a support member 210, a first telescopic member 220, a hook member 230, and a second telescopic member 240. The support member 210 is connected to the hoisting bracket 100 and is movably arranged laterally. The support member 210 is provided with a first positioning surface 211 and a second positioning surface 212 that are perpendicular to each other. The support member 210 is positioned by abutting the first positioning surface 211 and the second positioning surface 212 on each movable support member 210 against the two adjacent sides of the lock hole 20 at the top corner of the container 10. The support member 210 is driven to move closer to or away from the lock hole 20 by the first telescopic member 220. The lock hole 20 is hooked by the hook member 230 provided on the support member 210. Specifically, the second telescopic member 240 drives the hook connector 231 on the hook member 230 to insert into or remove from the lock hole 20. Therefore, by using the independently movable support members 210 on each hoisting station 110 of the hoisting bracket 100, and by using the positioning surfaces on the support members 210 to accurately position the lock holes 20, it is easy for the hook-up member 230 to quickly hook up the lock holes 20, reducing the difficulty of operation and thus improving the hoisting efficiency.

[0091] In one possible design, such as Figure 2 As shown, the hook-on 230 is rotatably mounted on the support 210 around the transverse axis. The hook-on connector 231 is provided at one end of the hook-on 230 away from the rotation center, and the other end of the hook-on 230 away from the rotation center is rotatably connected to the second telescopic member 240. The second telescopic member 240 drives the hook-on 230 to rotate so that the hook-on connector 231 is inserted into the lock hole 20.

[0092] In one example, the middle portion of the hook-and-mount member 230 is mounted to the outer wall of the support member 210 via a bearing. The axis of rotation is laterally oriented and perpendicular to either the first positioning surface 211 or the second positioning surface 212. The lower end of the hook-and-mount member 230 has a hook connector 231 facing the positioning surface, forming a hook portion. The upper end of the hook-and-mount member 230 is rotatably connected to the telescopic end of the second telescopic member 240. The other end of the second telescopic member 240 is mounted to the upper outer wall of the support member 210 via a bearing. Thus, when the second telescopic member 240 extends, it drives the hook connector 231 of the hook-and-mount member 230 to deflect towards the positioning surface, allowing the hook connector 231 to engage with the lock hole 20.

[0093] In another example (not shown in the figure), the middle part of the hook 230 is mounted to the outer wall of the support 210 via a bearing. The rotation axis is set laterally and is perpendicular to the first positioning surface 211 or the second positioning surface 212. The upper end of the hook 230 is provided with a hook head 231 facing the positioning surface, forming a hook portion. The upper end of the hook 230 is rotatably connected to the telescopic end of the second telescopic member 240. The other end of the second telescopic member 240 is mounted to the lower outer wall of the support 210 via a bearing. In this way, when the second telescopic member 240 extends, it can also drive the hook head 231 of the hook 230 to deflect towards the positioning surface, so that the hook head 231 can be hooked with the lock hole 20.

[0094] Furthermore, such as Figure 2 , Figure 6 As shown, the hanging assembly 200 in this embodiment may further include a first connecting plate 250 and a second connecting plate 260. One end of the first connecting plate 250 and one end of the second connecting plate 260 are rotatably connected to the second telescopic member 240. The other end of the first connecting plate 250 is rotatably connected to the end of the hook member 230 facing away from the hook connector 231. The other end of the second connecting plate 260 is rotatably connected to the support member 210. When the second telescopic member 240 drives the hook member 230 to rotate so that the hook connector 231 is inserted into the lock hole 20, the first connecting plate 250 and the second connecting plate 260 are on the same straight line.

[0095] In this way, when the second telescopic member 240 drives the hook member 230 to rotate so that the hook member 231 is inserted into the lock hole 20, the first connecting plate 250 and the second connecting plate 260 are on the same straight line to form a dead angle position for rotation, so that the hook member 230 forms a stable hook, which greatly reduces the workload of the second telescopic member 240 and avoids the hook member 230 from falling off the lock hole 20 during the hoisting process, thus ensuring the stability of the hoisting.

[0096] To further ensure the adaptive alignment capability of the positioning surface, continue as follows: Figure 3 As shown, the hanging assembly 200 may further include a first elastic reset member 270 and a second elastic reset member 280. The first elastic reset member 270 is connected to the support member 210 and is used to elastically tighten the first positioning surface 211 towards the side near the lock hole 20. The second elastic reset member 280 is connected to the support member 210 and is used to elastically tighten the second positioning surface 212 towards the other side adjacent to the lock hole 20.

[0097] In this way, when the first telescopic member 220 retracts, the first positioning surface 211 abuts against the side of the lock hole 20 under the elastic tension of the first elastic reset member 270, while the second positioning surface 212 abuts against the other side of the lock hole 20 under the elastic tension of the second elastic reset member 280. This allows the support member 210 to adaptively adjust its position in real time following the lock hole 20, with the aim of ensuring that the hook connector 231 on the hook member 230 is aligned with the lock hole 20.

[0098] For example, Figure 3 The diagram shows that both the first elastic reset member 270 and the second elastic reset member 280 are identical tension springs. The first elastic reset member 270 is stretched along the X-axis, with one end hooked to the mounting bracket 100 and the other end hooked to the support member 210. Correspondingly, the second elastic reset member 280 is stretched along the Y-axis, with one end hooked to the mounting bracket 100 and the other end hooked to the mounting bracket 100. In this way, the spring force ensures that the positioning surface is constantly pressed against the side of the lock hole 20.

[0099] Of course, other forms of elastic reset structures can also be used. Any structure that can elastically tighten the first positioning surface 211 on the support member 210 along the side near the lock hole 20 and elastically tighten the second positioning surface 212 along the other side adjacent to the lock hole 20 is acceptable. No restrictions are imposed in this embodiment.

[0100] In one possible design, the first telescopic member 220 is mounted on the lifting bracket 100 and extends and retracts along the direction of the angle between the first elastic reset member 270 and the second elastic reset member 280. For example... Figure 3 As shown, the extension and retraction direction of the first telescopic member 220 is in the plane formed by the XY axis, and the extension and retraction direction of the first telescopic member 220 can be at a 45° angle with the X axis and the Y axis respectively, and is set along the direction close to or away from the lock hole 20, so that the stroke of the first positioning surface 211 and the second positioning surface 212 away from the lock hole 20 is basically the same.

[0101] Optionally, in order to limit the position of the support member 210, such as Figure 2 , Figure 3 As shown, in this embodiment, the support member 210 is provided with a limiting groove 213 along the direction of the angle between the first elastic reset member 270 and the second elastic reset member 280, and the lifting bracket 100 at the lifting station 110 is provided with a limiting member 120 that is clearance-fitted with the limiting groove 213. In this way, the support member 210 can move along the width and length directions of the container 10, and can also be slightly rotated and adjusted around the Z-axis.

[0102] For example, the limiting member 120 can be a stud erected on the lifting bracket 100, with a clearance fit between the stud and the limiting groove 213, and a limiting portion at the upper end of the stud. The limiting portion blocks the limiting groove 213, preventing it from disengaging from the limiting groove 213. It is worth noting that the clearance between the stud and the limiting groove 213 should meet the maximum range of movement and adjustment of the support member 210 in the transverse plane. The specific size of the clearance can be set according to the actual needs in the actual working conditions, and is not limited in this embodiment.

[0103] In the above embodiment, a blocking part 232 is provided on the side of the hook connector 231 opposite to the hook member 230. In this way, when the hook connector 231 is inserted into the lock hole 20, the blocking part 232 can prevent the hook connector 231 from falling freely off the lock hole 20.

[0104] It is worth noting that when the spreader and container 10 are in a slack state (i.e., not being lifted), the hook joint 231, including the blocking part 232, can enter and exit through the lock hole 20. When lifting, the blocking part 232 blocks the lock hole 20.

[0105] To further ensure the reliability of hoisting, such as Figure 1 As shown, the container spreader provided in this embodiment may further include a gripping assembly 300. The gripping assembly 300 includes a gripper 310 and a gripping drive 320. The gripper 310 is connected to the lifting bracket 100 and is movably disposed laterally. The lower end of the gripper 310 has a gripping part 311, which is used to support the bottom of the container 10 or to insert into the fork slot 30 near the bottom of the container 10. The gripping drive 320 is connected to the gripper 310 and is used to drive the gripper 310 to move.

[0106] With this configuration, when the container 10 is hoisted by the hoisting assembly 200, the gripping drive 320 can also drive the gripper 310 to support the bottom of the container 10 or insert it into the fork slot 30 near the bottom of the container 10, which further prevents it from falling and greatly improves the reliability of hoisting.

[0107] For example, such as Figure 1 , Figure 5 As shown, the gripping drive component 320 is a telescopic component, fixed on the lifting bracket 100. The telescopic direction of the gripping drive component 320 is arranged along the width direction of the container 10. Correspondingly, the gripper 310 is also arranged along the width direction of the container 10 (e.g., ...). Figure 1The gripper 310 is movable on the lifting bracket 100 in the Y direction. It is connected to the telescopic end of the gripping drive 320. The lower end of the gripper 310 has a gripping part 311 extending along the width direction of the container 10. In this way, when the gripping drive 320 extends or retracts, the gripping part 311 at the lower end of the gripper 310 can support the bottom of the container 10 or be inserted into the fork slot 30 near the bottom of the container 10 for gripping.

[0108] in, Figure 1 The image shows two grippers 310 positioned opposite each other on each side of the lifting support 100 along the width of the container 10. Of course, more grippers 310 can be provided. The number and specific positions of the grippers 310 can be set according to the actual needs in the actual working conditions. In this embodiment, no further limitations are made.

[0109] This embodiment also provides a container lifting system, including a container 10 and the container spreader provided in any of the above embodiments.

[0110] Lock holes 20 are provided on the sides of each corner of the top of the container 10. The hook-up piece 230 is hooked up by inserting the hook-up piece 231 into the lock hole 20.

[0111] The structure of the container spreader has been described in detail in the above embodiments, and will not be repeated here.

[0112] The container 10 has two sides (i.e., facades) and a top surface at each corner of its top. At least one of the two sides has a locking hole 20, which matches a hook-and-loop connector 231. This allows the hook-and-loop connector 231 to be inserted into the locking hole 20 for hooking. Furthermore, the locking hole 20 can be round, square, or irregularly shaped, as long as it allows the hook-and-loop connector 231 to match. In this embodiment, no excessive restrictions are placed on this.

[0113] It is understood that the container lifting system provided in this application embodiment uses a container spreader, which includes a lifting bracket 100 and multiple lifting assemblies 200. The lifting bracket 100 provides a lifting foundation and an installation foundation for the lifting assemblies 200. The lifting assemblies 200, which are set on the lifting station 110 of the lifting bracket 100, are used to attach to the locking holes 20 at the top corners of the container 10. The hoisting assembly 200 includes a support member 210, a first telescopic member 220, a hook member 230, and a second telescopic member 240. The support member 210 is connected to the hoisting bracket 100 and is movably arranged laterally. The support member 210 is provided with a first positioning surface 211 and a second positioning surface 212 that are perpendicular to each other. The support member 210 is positioned by abutting the first positioning surface 211 and the second positioning surface 212 on each movable support member 210 against the two adjacent sides of the lock hole 20 at the top corner of the container 10. The support member 210 is driven to move closer to or away from the lock hole 20 by the first telescopic member 220. The lock hole 20 is hooked by the hook member 230 provided on the support member 210. Specifically, the second telescopic member 240 drives the hook connector 231 on the hook member 230 to insert into or remove from the lock hole 20. Therefore, by using the independently movable support members 210 on each hoisting station 110 of the hoisting bracket 100, and by using the positioning surfaces on the support members 210 to accurately position the lock holes 20, it is easy for the hook-up member 230 to quickly hook up the lock holes 20, reducing the difficulty of operation and thus improving the hoisting efficiency.

[0114] Furthermore, such as Figure 7 As shown, the container spreader system provided in this embodiment may further include a first lateral movement component 400, a second lateral movement component 500, and a lifting component 600.

[0115] The container spreader is connected to the second lateral movement component 500 via a lifting component 600. The lifting component 600 is used for lifting the container 10, and the second lateral movement component 500 is used to drive the container 10 to move along the second lateral direction via the lifting component 600.

[0116] The second lateral movement component 500 is connected to the first lateral movement component 400, which is used to drive the container 10 to move along the first lateral direction via the second lateral movement component 500 and the lifting component 600.

[0117] The first lateral direction is parallel to the length direction of container 10, and the second lateral direction is parallel to the width direction of container 10.

[0118] In this way, the container spreader can be used to move the container 10 within the three-dimensional space for flexible hoisting and stacking through the first lateral movement component 400, the second lateral movement component 500, and the lifting component 600.

[0119] For example, the lifting assembly 600 can be a vertically positioned telescopic boom, with its telescopic end facing downwards and connected to a container spreader. Thus, in the vertical direction of the telescopic boom (e.g., Figure 7 The height of container 10 can be adjusted by the telescopic action in the Z direction. Of course, the lifting component 600 can also be replaced by other mechanisms with telescopic functions, as long as the mechanism can stably lift heavy objects. In this embodiment, there are no excessive restrictions.

[0120] The second lateral movement component 500 may include a second guide rail and a second drive element, the second guide rail being along the width direction of the container 10 (e.g., Figure 7 The telescopic arm is positioned in the Y direction, and the second drive component is connected to the upper end of the telescopic arm. Thus, when the upper end of the telescopic arm moves on the second guide rail, the telescopic arm, container crane, and container 10 move along the Y direction via the second drive component. The second drive component can be a telescopic mechanism or a linear movement mechanism (such as a motor-driven roller mechanism) positioned in the Y direction; any mechanism capable of stably moving a heavy object laterally is acceptable. In this embodiment, no excessive restrictions are placed on this.

[0121] The first lateral movement component 400 may include a first guide rail and a first drive component, the first guide rail being along the length direction of the container 10 (e.g., ...). Figure 7 In the X-direction configuration, two first guide rails can be arranged side-by-side, and a second guide rail is moved and mounted on the first guide rails to form a traveling crane. A first driving component is connected to the second guide rail. Thus, when the second guide rail moves laterally on the first guide rail via the first driving component, it drives the second guide rail, the telescopic arm, the container crane, and the container 10 to move along the X-direction. The first driving component can be a telescopic mechanism or a linear movement mechanism (such as a motor-driven roller mechanism), etc., arranged along the X-direction; any mechanism capable of stably moving a heavy object laterally is acceptable. In this embodiment, no excessive restrictions are placed on this.

[0122] Of course, a visual recognition system can also be installed on the container crane to assist operators in lifting and other tasks, thereby improving operational efficiency.

[0123] Other embodiments of this application will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this application that follow the general principles of this application and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this application are indicated by the following claims.

[0124] It should be understood that this application is not limited to the precise structure described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this application is limited only by the appended claims.

Claims

1. A container spreader for a container reach stacker, c h a r a c t e r i s e d in that The container lifting spreader comprises a lifting support and a plurality of lifting assemblies; The lifting support is provided with lifting stations corresponding to the corners of the top of the container, and each lifting assembly is arranged on each lifting station; The lifting assembly comprises a support, a first telescopic member, a hanging member and a second telescopic member, the support is connected with the lifting support and is arranged to move along the transverse direction, the support is provided with a first positioning surface and a second positioning surface which are perpendicular to each other, the first positioning surface and the second positioning surface are respectively used to abut against the two adjacent side surfaces of the lock hole at the corner of the top of the container for positioning; the first telescopic member is connected with the support and is used to drive the support to move in the direction close to or away from the lock hole; The hanging member is movably connected with the support, and the hanging member is provided with a hanging head matched with the lock hole; the second telescopic member is connected with the hanging member and is used to drive the hanging member to move so that the hanging head is inserted into the lock hole through the first positioning surface or the second positioning surface; The lifting assembly further comprises a first elastic return member and a second elastic return member, the first elastic return member is connected with the support and is used to elastically tension the first positioning surface in the direction close to the side surface of the lock hole; The second elastic return member is connected with the support and is used to elastically tension the second positioning surface in the direction close to the other side surface adjacent to the lock hole.

2. The container spreader as claimed in claim 1, characterized in that The hanging member is rotatably arranged on the support about a transverse axis, one end of the hanging member away from the rotation center is provided with the hanging head, the other end of the hanging member away from the rotation center is rotatably connected with the second telescopic member, and the second telescopic member is used to drive the hanging member to rotate so that the hanging head is inserted into the lock hole.

3. The container spreader as claimed in claim 2, characterized in that The lifting assembly further comprises a first connecting plate and a second connecting plate, one end of the first connecting plate and one end of the second connecting plate are rotatably connected with the second telescopic member, the other end of the first connecting plate is rotatably connected with one end of the hanging member away from the hanging head, and the other end of the second connecting plate is rotatably connected with the support; When the second telescopic member drives the hanging member to rotate so that the hanging head is inserted into the lock hole, the first connecting plate and the second connecting plate are in the same straight line.

4. A container spreader according to any one of claims 1 to 3, characterized in that, The first telescopic member is arranged on the lifting support and is telescopic in the direction of the included angle between the first elastic return member and the second elastic return member.

5. The container spreader as claimed in claim 4, characterized in that The support is provided with a limiting groove in the direction of the included angle between the first elastic return member and the second elastic return member, and the lifting support at the lifting station is provided with a limiting member which is gap-fitted with the limiting groove.

6. The container spreader according to any one of claims 1 to 3, characterized in that, The hanging head is provided with a blocking portion above the side away from the hanging member.

7. A container spreader according to any one of claims 1 to 3, characterized in that, Further comprising a grabbing assembly, the grabbing assembly comprises a grabbing hand and a grabbing driving member, the grabbing hand is connected with the lifting support and is arranged to move along the transverse direction, and the lower end of the grabbing hand is provided with a grabbing part for holding the bottom of the container or being inserted into the fork groove close to the bottom of the container; The grabbing driving member is connected with the grabbing hand and is used to drive the grabbing hand to move.

8. A container hoisting system characterized by, The container and the container spreader according to any one of claims 1-7; The side surface of each corner of the top of the container is provided with a locking hole, and the hanger is inserted into the locking hole through the hanger joint to realize the hanging.

9. A container hoisting system according to claim 8, characterised in that, Further comprising a first lateral movement assembly, a second lateral movement assembly and a lifting assembly; The container spreader is connected with the second lateral movement assembly through the lifting assembly, the lifting assembly is used for lifting the container, and the second lateral movement assembly is used for driving the container to move along the second lateral direction through the lifting assembly; The second lateral movement assembly is connected with the first lateral movement assembly, the first lateral movement assembly is used for driving the container to move along the first lateral direction through the second lateral movement assembly and the lifting assembly; The first lateral direction is parallel to the length direction of the container, and the second lateral direction is parallel to the width direction of the container.

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