Container corner fitting loading and unloading device with automatic hooking function

By designing an automatic container corner fitting loading and unloading device, and utilizing motor drive components and adjustment mechanisms, the problem of corner fittings falling off during hoisting was solved, achieving a stable connection and adaptive adjustment of the container, and improving hoisting safety.

CN223792751UActive Publication Date: 2026-01-13DEQING WEISHENG FOUNDRY CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202520417059.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-11
Publication Date
2026-01-13
Estimated Expiration
2035-03-11

AI Technical Summary

Technical Problem

Existing container handling equipment poses a risk of corner fittings detaching during lifting, necessitating improvements to the gripping mechanism design to provide multiple layers of protection.

Method used

A container corner fitting loading and unloading device with automatic hooking function was designed. The dual-axis motor drives the transmission shaft to rotate the assembly wheel, so that the lower hook rod hooks the bottom of the container to provide pulling force. It is fixed by hydraulic rod and pin block limit. Combined with the drive motor driving the bidirectional screw adjustment to adapt to containers of different sizes, the bottom plate is equipped with a fixed axis spin lock device to achieve automatic locking.

Benefits of technology

It effectively prevents containers from accidentally falling off, adapts to containers of different sizes, achieves automatic hooking and stable connection, and improves the safety of lifting and transporting.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223792751U_ABST
    Figure CN223792751U_ABST
Patent Text Reader

Abstract

The utility model discloses a container corner fitting loading and unloading device with an automatic hooking function. The container corner fitting loading and unloading device comprises a lifting appliance butt-joint frame, and an auxiliary anti-falling assembly is arranged at one end of the lifting appliance butt-joint frame; the auxiliary anti-falling assembly comprises a main butt-joint rod, concave rods are fixedly connected to the two ends of the main butt-joint rod, a mounting rod is fixedly connected to one side of the main butt-joint rod, an assembling rotating wheel is rotationally connected between the mounting rod and the concave rods, and a lower hook rod is fixedly connected to the outer wall of the assembling rotating wheel; one end of the lower hook rod is fixedly connected with a protruding block. According to the container corner fitting loading and unloading device with the automatic hooking function, the double-shaft motor is started to drive the transmission shaft to rotate, and then the transmission shaft drives the assembling rotating wheel to rotate and further drives the lower hook rod to rotate, so that the protruding block can hook the bottom of a container to provide pulling force for the container, and the container is effectively prevented from accidentally falling off.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of container loading and unloading technology, specifically a container corner fitting loading and unloading device with automatic splicing function. Background Technology

[0002] Container corner fitting loading and unloading devices are used for container loading and unloading operations. By connecting to container corner fittings, they enable operations such as lifting, handling, and stacking of containers. Container corner fittings are an important component of containers, located at the eight corners of the container, and play multiple important roles. The corner fittings have dedicated lifting holes, facilitating the insertion of lifting tools from cranes and other equipment, thus enabling the lifting and handling of the container. In ports, docks, and freight yards, containers can be easily loaded and unloaded from transport vehicles by using cranes, gantry cranes, and other mechanical equipment to hook onto the lifting holes of the corner fittings.

[0003] However, some existing loading and unloading devices simply connect the container to the spreader via corner brackets during the lifting process, which sometimes poses a risk of the corner brackets falling off. Therefore, it is necessary to improve the design of the gripping mechanism to provide multiple layers of protection.

[0004] To address these issues, this invention provides a container corner fitting loading and unloading device with automatic splicing function. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a container corner fitting loading and unloading device with automatic splicing function, thus solving the aforementioned problems.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a container corner fitting loading and unloading device with automatic attachment function, comprising a spreader docking frame, one end of which is provided with an auxiliary anti-detachment component; the auxiliary anti-detachment component is internally provided with an adjustment component; the auxiliary anti-detachment component includes a main docking rod, both ends of which are fixedly connected to concave rods, the top of which is fixedly connected to one end of the spreader docking frame, one side of which is fixedly connected to an installation rod, an assembly wheel is rotatably connected between the installation rod and the concave rod, a lower hook rod is fixedly connected to the outer wall of the assembly wheel, and one end of the lower hook rod is fixedly connected to a protrusion.

[0007] Furthermore, a dual-axis motor is fixedly installed inside the mounting rod, and a transmission shaft is fixedly connected to the output shaft of the dual-axis motor. One end of the transmission shaft is fixedly connected to one end of the assembly wheel.

[0008] The above technical solution is used to provide power to drive the assembly wheel to rotate.

[0009] Furthermore, a cross-shaped support rod is fixedly connected to the inner wall of the mounting rod, and the interior of the cross-shaped support rod is rotatably connected to the drive shaft.

[0010] The above technical solution is used to support the drive shaft.

[0011] Furthermore, a hydraulic rod is fixedly installed inside the concave rod, and a pin block is fixedly connected to the movable end of the hydraulic rod. The pin block can be inserted into the interior of the assembly wheel.

[0012] The above technical solution is used to limit the assembly of the rotating wheel.

[0013] Furthermore, the adjusting assembly includes a bidirectional lead screw, which is rotatably connected between the inner walls of the concave rod. A nut block is threadedly connected to the outer wall of the bidirectional lead screw, and the nut block is slidably connected to the inner wall of the concave rod. A base plate is fixedly connected to one side of the nut block.

[0014] By adopting the above technical solution, the size of the container can be adapted, and the bottom plate is used to install the fixed axis twist lock device.

[0015] Furthermore, a drive motor is fixedly installed on the inner wall of the concave rod, and the output shaft of the drive motor is fixedly connected to one end of the bidirectional lead screw.

[0016] The above technical solution is used to provide power to drive the rotation of the bidirectional lead screw.

[0017] Beneficial effects

[0018] This utility model provides a container corner fitting loading and unloading device with automatic splicing function. Compared with the prior art, it has the following advantages:

[0019] 1. This container corner fitting loading and unloading device with automatic hooking function drives the transmission shaft to rotate by starting a dual-shaft motor. The transmission shaft then drives the assembly wheel to rotate, which in turn drives the lower hook rod to rotate, so that the protrusion can hook onto the bottom of the container and provide a pulling force to effectively prevent the container from falling off accidentally.

[0020] 2. This container corner fitting loading and unloading device with automatic splicing function drives the bidirectional screw to rotate by starting the drive motor. Due to the special shape of the nut block, the two nut blocks move closer to each other to adjust according to the container size. One side of the bottom plate is used to install a fixed axis rotary lock device for automatic locking connection with the corner fitting. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0022] Figure 1 This is a perspective view of the external structure of this utility model;

[0023] Figure 2 This is an enlarged view of the structure at point A of this utility model;

[0024] Figure 3 This is a top view of the structure of this utility model;

[0025] Figure 4 This is a structural test diagram of this utility model;

[0026] Figure 5 This is a side view of the internal structure of this utility model after removing the concave frame and the mounting rod.

[0027] In the diagram: 1. Lifting device docking frame; 2. Auxiliary anti-falling component; 21. Main docking rod; 22. Concave rod; 23. Dual-axis motor; 24. Drive shaft; 25. Assembly wheel; 26. Lower hook rod; 27. Protrusion; 28. Hydraulic rod; 29. ​​Pin block; 210. Mounting rod; 211. Cross support rod; 3. Adjustment component; 31. Two-way lead screw; 32. Nut block; 33. Base plate; 34. Drive motor. Detailed Implementation

[0028] It should be noted that in the description of the embodiments of this application, the terms "front," "rear," "left," "right," "up," "down," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are 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, and therefore should not be construed as a limitation of this application. The terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two elements. For those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0029] The present application will be further described in detail below with reference to the accompanying drawings and embodiments.

[0030] Reference Figures 1 to 5This application provides a container corner fitting loading and unloading device with automatic attachment function, including a spreader docking frame 1. One end of the spreader docking frame 1 is provided with an auxiliary anti-detachment component 2. An adjustment component 3 is provided inside the auxiliary anti-detachment component 2. The auxiliary anti-detachment component 2 includes a main docking rod 21, with concave rods 22 fixedly connected to both ends of the main docking rod 21. The top of the concave rods 22 is fixedly connected to one end of the spreader docking frame 1. An installation rod 210 is fixedly connected to one side of the main docking rod 21. An assembly wheel 25 is rotatably connected between the installation rod 210 and the concave rods 22. A lower hook rod 26 is fixedly connected to the outer wall of the assembly wheel 25, and a protrusion 27 is fixedly connected to one end of the lower hook rod 26. A dual-axis motor 23 is fixedly installed inside the installation rod 210. A transmission shaft 24 is fixedly connected to the output shaft of the dual-axis motor 23, and one end of the transmission shaft 24 is fixedly connected to one end of the assembly wheel 25. A cross-shaped support rod 211 is fixedly connected to the inner wall of the mounting rod 210, and the interior of the cross-shaped support rod 211 is rotatably connected to the drive shaft 24. A hydraulic rod 28 is fixedly installed inside the concave rod 22, and a pin block 29 is fixedly connected to the movable end of the hydraulic rod 28. The pin block 29 can be inserted into the interior of the assembly wheel 25.

[0031] In practice: by starting the dual-axis motor 23, the transmission shaft 24 is driven to rotate. The transmission shaft 24 then drives the assembly wheel 25 to rotate, which in turn drives the hook rod 26 to rotate, so that the protrusion 27 can hook the bottom of the container and provide it with a pulling force to effectively prevent the container from falling off accidentally. The assembly wheel 25 has four insertion holes on one side, which are evenly spaced at 90 degrees. The hydraulic rod 28 can control the push of the pin block 29 to insert into the insertion hole to limit and fix the assembly wheel 25.

[0032] Reference Figures 1 to 5 In one aspect of this embodiment, the adjusting assembly 3 includes a bidirectional lead screw 31, which is rotatably connected to the inner wall of the concave rod 22. A nut block 32 is threadedly connected to the outer wall of the bidirectional lead screw 31, and the nut block 32 is slidably connected to the inner wall of the concave rod 22. A base plate 33 is fixedly connected to one side of the nut block 32. A drive motor 34 is fixedly mounted on the inner wall of the concave rod 22, and the output shaft of the drive motor 34 is fixedly connected to one end of the bidirectional lead screw 31.

[0033] In practice: the drive motor 34 is started, which drives the bidirectional lead screw 31 to rotate. Due to the special shape of the nut block 32, the rotation of the bidirectional lead screw 31 causes the two nut blocks 32 to move closer together so as to be adjusted according to the container size. One side of the bottom plate 33 is used to install a fixed-axis spinlock device for automatic locking connection with the corner fitting (fixed-axis spinlock device: a common insertion part in spreaders, shaped like a rotatable pin, which cannot swing in the spreader's rotating box, but can only rotate. During operation, the spinlock is driven by the drive mechanism on the spreader, inserted into the corresponding hole of the container corner fitting, and then rotated at a certain angle to achieve a locking connection with the corner fitting, thereby firmly connecting the spreader and the container, facilitating lifting and handling).

[0034] All electrical devices in this plan are powered by an external power source.

[0035] Working principle: The dual-shaft motor 23 drives the transmission shaft 24 to rotate, which in turn drives the assembly wheel 25 to rotate, which in turn drives the hook rod 26 to rotate, so that the protrusion 27 can hook the bottom of the container and provide a pulling force to effectively prevent the container from falling off accidentally. The assembly wheel 25 has four holes on one side, which are evenly spaced at 90 degrees. The hydraulic rod 28 can control the push of the pin block 29 to insert into the hole to limit and fix the assembly wheel 25. The drive motor 34 drives the bidirectional screw 31 to rotate. Due to the special shape of the nut block 32, the bidirectional screw 31 rotates and causes the two nut blocks 32 to move closer to each other so as to adjust according to the size of the container. One side of the bottom plate 33 is used to install the fixed axis spin lock device for automatic locking connection with the corner piece.

[0036] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0037] Although embodiments of this application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A container corner fitting handling device with automatic hitching function, comprising a spreader docking frame (1), characterized in that: One end of the lifting appliance butt joint frame (1) is provided with an auxiliary anti-falling assembly (2); the inside of the auxiliary anti-falling assembly (2) is provided with an adjusting assembly (3); the auxiliary anti-falling assembly (2) comprises a main butt joint rod (21), both ends of the main butt joint rod (21) are fixedly connected with concave rods (22), the top of the concave rod (22) is fixedly connected with one end of the lifting appliance butt joint frame (1), one side of the main butt joint rod (21) is fixedly connected with a mounting rod (210), the mounting rod (210) and the concave rod (22) are rotatably connected with an assembly rotating wheel (25), the outer wall of the assembly rotating wheel (25) is fixedly connected with a lower hook rod (26), one end of the lower hook rod (26) is fixedly connected with a protruding block (27).

2. The container corner fitting handling device with automatic coupling function according to claim 1, characterized in that: The inside of the mounting rod (210) is fixedly installed with a double-shaft motor (23), the output shaft of the double-shaft motor (23) is fixedly connected with a transmission shaft (24), one end of the transmission shaft (24) is fixedly connected with one end of the assembly rotating wheel (25).

3. The container corner fitting handling device with automatic coupling function according to claim 1, characterized in that: The inner wall of the mounting rod (210) is fixedly connected with a cross support rod (211), the inside of the cross support rod (211) is rotatably connected with the transmission shaft (24).

4. The container corner fitting handling device with automatic coupling function according to claim 1, characterized in that: The inside of the concave rod (22) is fixedly installed with a hydraulic rod (28), the movable end of the hydraulic rod (28) is fixedly connected with a bolt block (29), the bolt block (29) can be inserted in the inside of the assembly rotating wheel (25).

5. The container corner fitting handling device with automatic coupling function according to claim 1, characterized in that: The adjusting assembly (3) comprises a bidirectional screw rod (31), the bidirectional screw rod (31) is rotatably connected between the inner walls of the concave rod (22), the outer wall of the bidirectional screw rod (31) is threadedly connected with a nut block (32), the nut block (32) is slidably connected with the inner walls of the concave rod (22), one side of the nut block (32) is fixedly connected with a bottom plate (33).

6. The container corner fitting handling device with automatic coupling function according to claim 1, characterized in that: The inner wall of the concave rod (22) is fixedly installed with a driving motor (34), the output shaft of the driving motor (34) is fixedly connected with one end of the bidirectional screw rod (31).