Anti-collision protection device of container rotary lifting appliance
By using a container swivel spreader anti-collision protection device, and incorporating the design of a positioning frame and bending rod, combined with a geared motor and electric cylinder, the problem of spreader collision damage is solved, thereby improving the stability of the spreader and lifting efficiency.
Patent Information
- Application Number
- CN202520398023.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-10
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2035-03-10
AI Technical Summary
Existing container spreaders are easily damaged by collisions during use, affecting lifting efficiency.
The design includes a container swivel spreader anti-collision protection device, comprising a positioning frame, a bending rod, and an extension plate. Through the cooperation of a geared motor and an electric cylinder, the stability and position adjustment of the bending rod are achieved, preventing the spreader from colliding with external objects.
It effectively protects spreaders, reduces the probability of equipment damage, shortens maintenance time, and improves the operational efficiency of container ships.
Smart Images

Figure CN223765943U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of anti-collision protection technology for rotating spreaders, and in particular to an anti-collision protection device for container rotating spreaders. Background Technology
[0002] Container spreader is a special spreader for loading and unloading containers. It is connected to the top corner fittings of the container through the four corner locks at the four corners of its end beam. The driver operates and controls the opening and closing of the turnlocks to carry out container loading and unloading operations.
[0003] For example, CN216303091U discloses a collision protection device used in conjunction with a crane lifting device, including a lifting rope connection structure. On the outer surface of the lifting rope connection structure, there are load-bearing sliders that are equidistantly connected in a ring. On the outer circular surface of several load-bearing sliders, there are telescopic rods fixed. At the end of the telescopic rod away from the load-bearing slider, there is a collision buffer structure. A protective net is snapped onto the outside of the collision buffer structure.
[0004] However, in the existing technology, during the use of lifting equipment, because the lifting equipment needs to be constantly moved to adjust its direction, it is easy for the lifting equipment to collide with other objects during actual use. Traditional lifting equipment lacks effective protective devices, which makes it easy for the lifting equipment to be damaged due to collisions during actual use. At this time, it is necessary to stop lifting for repairs, which will directly affect the lifting efficiency. Utility Model Content
[0005] The purpose of this utility model is to solve the problem that in the actual use of existing technology, the lifting equipment is easily damaged due to collisions, which requires stopping the lifting operation for repairs and directly affects the lifting efficiency. Therefore, this invention proposes a container rotating spreader anti-collision protection device.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: a container rotating spreader anti-collision protection device, including a positioning frame, a connecting block fixedly connected to the bottom of the positioning frame, a bent rod slidably connected inside the connecting block, extension plates fixedly installed on both sides of the bent rod, an anti-detachment plate fixedly installed at one end of the bent rod, the anti-detachment plate being located on one side of the connecting block, and an installation connecting block fixedly installed on one side of the connecting block.
[0007] Preferably, a geared motor is fixedly mounted on the bottom of the mounting block, and a belt drive assembly is fixedly mounted on the output shaft of the geared motor.
[0008] Preferably, the bottom of the connecting block has a through hole, and a connecting gear is rotatably installed on the inner wall of the through hole.
[0009] Preferably, the belt drive assembly is movably connected to the connecting gear.
[0010] Preferably, the connecting gear is meshed with the bent rod, and the lower surface of the bent rod is provided with tooth grooves.
[0011] Preferably, a limiting groove is provided on one side of the bent rod, the two sides of the limiting groove are wavy, and an electric cylinder is fixedly installed on the lower surface of the positioning frame.
[0012] Preferably, a limiting block is fixedly installed at one end of the piston rod of the electric cylinder, and the shape of the limiting block is adapted to the shape of both sides of the limiting groove.
[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0014] 1. In this utility model, the device is welded to the spreader by a positioning frame. In actual use, the bending rod and the extension plate can be moved to adapt to the size of different containers. When transporting containers, the extension plate and the bending plate can protect the spreader and prevent it from colliding directly with external objects, thereby protecting the spreader. By reducing the probability of equipment damage and maintenance time, the efficiency of container ship operation is improved.
[0015] 2. In this utility model, by setting an electric cylinder on the side of the connecting block, the shape of the limiting block of the piston rod of the electric cylinder is adapted to the shape of the limiting groove. When moving the bending rod, the electric cylinder can limit the bending rod by pushing the limiting block into the limiting groove, thereby ensuring the stability of the bending rod. Attached Figure Description
[0016] Figure 1 This utility model provides a three-dimensional structural schematic diagram of a container rotating spreader anti-collision protection device;
[0017] Figure 2 A side view of the anti-collision protection device for container swivel spreaders is provided for this utility model;
[0018] Figure 3 This utility model provides a structural breakdown diagram of the bending rod and positioning frame of the anti-collision protection device for container rotating spreaders;
[0019] Figure 4 A three-dimensional structural diagram of the positioning frame for the anti-collision protection device of the container rotating spreader proposed in this utility model.
[0020] Legend: 1. Positioning frame; 2. Connecting block; 3. Bending rod; 4. Extension plate; 5. Mounting connecting block; 6. Anti-detachment plate; 7. Gear motor; 8. Gear groove; 9. Limiting groove; 10. Belt drive assembly; 11. Electric cylinder; 12. Connecting gear; 13. Limiting block; 14. Through hole. Detailed Implementation
[0021] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0022] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0023] Example 1: As Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, this utility model provides a container rotating spreader anti-collision protection device, including a positioning frame 1, a connecting block 2 fixedly connected to the bottom of the positioning frame 1, a bent rod 3 slidably connected inside the connecting block 2, extension plates 4 fixedly installed on both sides of the bent rod 3, an anti-detachment plate 6 fixedly installed at one end of the bent rod 3, the anti-detachment plate 6 being located on one side of the connecting block 2, and an installation connecting block 5 fixedly installed on one side of the connecting block 2;
[0024] A geared motor 7 is fixedly installed at the bottom of the mounting connecting block 5. A belt drive assembly 10 is fixedly installed on the output shaft of the geared motor 7. A through hole 14 is opened at the bottom of the connecting block 2. A connecting gear 12 is rotatably installed on the inner wall of the through hole 14. The belt drive assembly 10 and the connecting gear 12 are movably connected. The connecting gear 12 is meshed with the bent rod 3. A tooth groove 8 is opened on the lower surface of the bent rod 3.
[0025] The specific settings and functions of this embodiment are described below. Before installing this anti-collision protection device on the spreader, the size of the spreader is first measured to determine the size of the anti-collision protection device. During installation, the positioning frame 1 is welded to the spreader to ensure the stability and structural strength of the anti-collision protection device. During the process of using the spreader to lift containers, the bending rod 3 and the extension plate 4 can both protect the spreader and prevent the spreader from directly colliding with external objects. By reducing the probability of equipment and facility damage and reducing maintenance time, the goal of improving the operating efficiency of container ships is achieved.
[0026] The bending rod 3 is slidably connected inside the connecting block 2. When in use, the reduction motor 7 drives the connecting gear 12 through the belt drive assembly 10. Since the tooth groove 8 at the bottom of the bending rod 3 meshes with the connecting gear 12, the bending rod 3 will be pushed during the rotation of the connecting gear 12. The position of the bending rod 3 is changed to adapt to the shape of the container.
[0027] The bottom of the connecting block 2 has a through hole 14 to accommodate the connecting gear 12. The reduction motor 7 is installed on the mounting connecting block 5 on the side of the connecting block 2, which ensures its own structural stability. When the bending rod 3 is moved, the anti-detachment plate 6 can prevent the bending rod 3 from falling off.
[0028] Example 2: Figure 3 and Figure 4 As shown, a limiting groove 9 is provided on one side of the bent rod 3. The two sides of the limiting groove 9 are wavy. An electric cylinder 11 is fixedly installed on the lower surface of the positioning frame 1. A limiting block 13 is fixedly installed at one end of the piston rod of the electric cylinder 11. The shape of the limiting block 13 is adapted to the shape of the two sides of the limiting groove 9.
[0029] The overall effect of this embodiment is that the limiting groove 9 on the side of the bent rod 3 is used to connect with the limiting block 13. The wave-shaped structure on both sides of the limiting groove 9 is adapted to the shape of the limiting block 13, ensuring that the limiting block 13 can be completely fitted into the bent rod 3, thereby preventing the bent rod 3 from shifting and ensuring the stability of the bent rod 3. The electric cylinder 11 is fixedly installed on the lower surface of the positioning frame 1 to ensure its own structural stability. When it is necessary to move the bent rod 3, the limiting block 13 can be moved out of the limiting groove 9.
[0030] The usage and working principle of this device: When installing this anti-collision protection device, simply weld the positioning frame 1 to the lifting device. The bending rod 3 and the extension plate 4 can both protect the lifting device and prevent it from colliding directly with external objects.
[0031] Before protection, the geared motor 7 drives the connecting gear 12 through the belt drive assembly 10, and the connecting gear 12 pushes the bending rod 3 to change the position of the bending rod 3, so as to ensure that the bending rod 3 and the extension plate 4 can adapt to the shape of the container. The anti-detachment plate 6 can prevent the bending rod 3 from falling off.
[0032] After adjusting the position of the bending rod 3, the electric cylinder 11 pushes the limiting block 13 into the limiting groove 9, which can be completely fitted into the bending rod 3 to prevent the bending rod 3 from shifting and to ensure the stability of the bending rod 3.
[0033] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A container rotary spreader anti-collision protection device, comprising a positioning frame (1), characterized in that: The bottom of the positioning frame (1) is fixedly connected with a connecting block (2), the inside of the connecting block (2) is slidably connected with a bent rod (3), both sides of the bent rod (3) are fixedly installed with extension plates (4), one end of the bent rod (3) is fixedly installed with an anti-off plate (6), the anti-off plate (6) is located on one side of the connecting block (2), and one side of the connecting block (2) is fixedly installed with a mounting connecting block (5).
2. A container spin spreader anti-collision protection device according to claim 1, characterized in that: The bottom of the mounting connecting block (5) is fixedly installed with a speed reducer (7), and the output shaft of the speed reducer (7) is fixedly installed with a belt transmission assembly (10).
3. A container spin spreader anti-collision protection device according to claim 2, characterised in that: The bottom of the connecting block (2) is provided with a through hole (14), and the inner wall of the through hole (14) is rotatably installed with a connecting gear (12).
4. A container spin spreader anti-collision protection device according to claim 3, characterized in that: The belt transmission assembly (10) and the connecting gear (12) are movably connected.
5. A container spin spreader anti-collision protection device according to claim 4, characterised in that: The connecting gear (12) and the bent rod (3) are meshedly connected, and the lower surface of the bent rod (3) is provided with a tooth groove (8).
6. The anti-collision protection device for a container rotation spreader as claimed in claim 1, characterized in that: One side of the bent rod (3) is provided with a limiting groove (9), the two sides of the limiting groove (9) are wave-shaped, and the lower surface of the positioning frame (1) is fixedly installed with an electric cylinder (11).
7. A container spin spreader anti-collision protection device according to claim 6, characterised in that: One end of the piston rod of the electric cylinder (11) is fixedly installed with a limiting block (13), and the shape of the limiting block (13) is matched with the shape of the two sides of the limiting groove (9).
Citation Information
Patent Citations
Collision protection device used in cooperation with lifting appliance of crane
CN216303091U