A port collision prevention device

By incorporating a collision switching structure and buffer system within the protective enclosure, the problem of the inability to adjust the collision rollers after they wear out has been solved, enabling flexible replacement and effective buffering of the collision rollers, and improving the adaptability and safety of the port collision protection device.

CN224451528UActive Publication Date: 2026-07-03CHINA ENERGY INVESTMENT CORP LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHINA ENERGY INVESTMENT CORP LTD
Filing Date
2025-05-28
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

The existing anti-collision devices cannot be replaced or adjusted in a timely manner after the anti-collision rollers wear out, which affects the anti-collision protection effect of the port.

Method used

The system employs an anti-collision switching structure within the protective housing. A switching motor drives a switching gear to move the moving frame horizontally, allowing for the adjustment and replacement of the anti-collision rollers. Combined with buffer springs and buffer dampers, it absorbs impact energy, improving the flexibility and safety of the anti-collision system.

Benefits of technology

It effectively protects vessels of different sizes and berthing angles, reduces collision risk, improves replacement efficiency, reduces vessel swaying and rebound, enhances berthing stability, and avoids dangerous open-air operations.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a port anti-collision device, belonging to the field of port anti-collision technology. It includes a protective housing with multiple movable slots on its front side wall. Each movable slot within the protective housing contains an anti-collision mechanism. Each anti-collision mechanism includes an anti-collision switching structure, an anti-collision buffer structure, and a switching fixing structure. The anti-collision switching structure is located within the protective housing, the anti-collision buffer structure is located on top of the anti-collision switching structure, and the switching fixing structure is located within the protective housing and can fix the anti-collision switching structure to the protective housing. This utility model uses the anti-collision switching structure to switch the position of the anti-collision rollers, facilitating the replacement of worn-out anti-collision rollers and thus providing better port protection.
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Description

Technical Field

[0001] This utility model belongs to the field of port collision avoidance technology, and in particular relates to a port collision avoidance device. Background Technology

[0002] Ports are transportation hubs located along the coast of the sea, rivers, lakes, and reservoirs, providing safe entry, exit, and berthing for ships. They are distribution centers for industrial and agricultural products and foreign trade import and export goods, as well as places for ships to berth, load and unload cargo, embark and disembark passengers, and replenish supplies. When ships dock, they may collide with the port shore due to their enormous inertia. To protect the port, anti-collision devices are usually installed on the shore.

[0003] However, after a period of use, existing anti-collision devices cannot promptly switch or adjust the position of the anti-collision rollers when the wear between the anti-collision surface on the rollers and the ship becomes significant, thus affecting subsequent port anti-collision protection. Utility Model Content

[0004] This utility model provides a port collision avoidance device to solve the problems in the prior art.

[0005] The present invention adopts the following technical solution: a port anti-collision device, including a protective box, a plurality of movable slots are provided on the front side wall of the protective box, and an anti-collision mechanism is provided in each movable slot of the protective box. Each anti-collision mechanism includes an anti-collision switching structure, an anti-collision buffer structure and a switching fixing structure. The anti-collision switching structure is located in the protective box, the anti-collision buffer structure is located on the anti-collision switching structure, and the switching fixing structure is located in the protective box and can fix the anti-collision switching structure to the protective box.

[0006] Furthermore, the anti-collision switching structure includes a mounting base, a switching motor, a switching gear, a switching toothed plate, and a moving frame. The mounting base is located inside the protective housing and is equipped with a slide block. The rear side wall of the moving frame is equipped with two slide rods that slide with the slide block. The switching motor is located at the inner top of the protective housing, the switching gear is located on the main shaft of the switching motor, the switching toothed plate is horizontally arranged on the upper part of the rear side wall of the protective housing, and the switching toothed plate meshes with the switching gear. The front wall of the moving frame is equipped with a mounting notch.

[0007] Furthermore, the anti-collision buffer structure includes a sliding frame and an anti-collision roller. Each end of the sliding frame is provided with two sliders, and the two ends of the sliding frame are slidably connected to the mounting notch through the corresponding two sliders. A plurality of buffer springs are provided between the sliding frame and the side wall of the mounting notch, and a buffer damper is provided inside the buffer spring. The buffer damper is connected between the sliding frame and the mounting notch. The anti-collision roller is rotatably connected to the sliding frame, and the anti-collision roller is detachably connected to the sliding frame.

[0008] Furthermore, the anti-collision roller and the sliding frame are detachably connected by bolts.

[0009] Furthermore, the outer layer of the anti-collision roller is made of rubber.

[0010] Furthermore, the switching and fixing structure includes two fixing electric cylinders, which are respectively installed on the inner top of the mounting base and the protective box. Each fixing electric cylinder has a fixing rod on its telescopic end, and the moving frame has a socket for inserting the fixing rod.

[0011] Furthermore, a protective door is provided on the rear side wall of the protective enclosure.

[0012] Furthermore, each of the movable slots is provided with a removable protective plate.

[0013] Furthermore, a sealing gasket is provided between the protective plate and the movable groove.

[0014] Furthermore, the protective housing, moving frame, and sliding frame are all made of corrosion-resistant materials.

[0015] The above-mentioned technical solutions adopted in the embodiments of this utility model can achieve the following beneficial effects:

[0016] Firstly, the switching motor of this invention drives the switching gear to rotate on the switching tooth plate, thereby causing the moving frame to move horizontally on the slide block on the mounting base via two slide rods. This moves the position of the anti-collision roller outwards outside the protective housing. With the anti-collision roller extended from the protective housing, it can cover a larger area, effectively protecting ships of different sizes and berthing angles, increasing the flexibility and adaptability of protection, and reducing the risk of collisions caused by berthing deviations. This achieves buffering and collision protection against ship impacts through the anti-collision roller. When replacing worn-out anti-collision rollers, the switching motor moves the roller into the protective housing for replacement. The anti-collision switching structure allows operators to work in a relatively safe and enclosed environment, avoiding the risks of replacing rollers in open areas or near dangerous locations like ships. Simultaneously, the relatively concentrated space inside the protective housing facilitates operator access and operation of the anti-collision roller, improving the convenience and efficiency of the replacement work.

[0017] Secondly, when a ship impacts the protective roller, the roller causes the sliding frame to move horizontally along the moving frame via a corresponding slider. This causes the sliding frame to compress the buffer spring and damper. The buffer spring absorbs some of the kinetic energy generated by the impact through its elastic deformation, converting it into elastic potential energy for storage. The damper dissipates the impact energy into heat and other forms of energy through internal fluid flow and friction. The combination of these two mechanisms effectively reduces the direct impact force on the ship and dock facilities, significantly lowering the impact force. It also effectively suppresses the swaying and rebound of the ship caused by the impact, allowing the ship to dock more smoothly, facilitating mooring operations for the crew and improving the efficiency and convenience of docking. Simultaneously, it reduces the relative movement between the ship and the dock caused by wind and waves during docking, further enhancing docking stability. Attached Figure Description

[0018] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a three-dimensional structural cross-sectional view of the present invention;

[0021] Figure 3 This is a three-dimensional structural diagram of the anti-collision mechanism extending outside the protective box in this utility model;

[0022] Figure 4 This is a three-dimensional structural diagram of the anti-collision mechanism moving into the protective box in this utility model;

[0023] Figure 5 for Figure 3 Enlarged view of point A in the middle;

[0024] Figure Labels

[0025] Protective housing 1, moving slot 11, protective door 12, protective plate 13, anti-collision mechanism 2, anti-collision switching structure 21, mounting base 211, switching motor 212, switching gear 213, switching tooth plate 214, moving frame 215, slide block 216, slide rod 217, mounting notch 218, insertion hole 219, anti-collision buffer structure 22, sliding frame 221, anti-collision roller 222, slider 223, buffer spring 224, buffer damper 225, bolt 226, switching fixing structure 23, fixing electric cylinder 231, fixing insertion rod 232. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0027] The technical solution of a port collision avoidance device provided by the present invention will be described in detail below with reference to the accompanying drawings.

[0028] Reference Figures 1 to 5 As shown, this embodiment of the utility model provides a port anti-collision device, including a protective housing 1. The front side wall of the protective housing 1 has multiple movable slots 11. Each movable slot 11 within the protective housing 1 is equipped with an anti-collision mechanism 2. Each anti-collision mechanism 2 includes an anti-collision switching structure 21, an anti-collision buffer structure 22, and a switching fixing structure 23. The anti-collision switching structure 21 is located inside the protective housing 1, the anti-collision buffer structure 22 is located on the anti-collision switching structure 21, and the switching fixing structure 23 is located inside the protective housing 1 and can fix the anti-collision switching structure 21 to the protective housing 1. A protective door 12 is provided on the rear side wall of the protective housing 1.

[0029] The protective housing 1 can be embedded in the port's protective dike, and the protective dike has an installation space for the protective housing 1. The protective door 12 can be rotated outward to open, so as to replace the anti-collision roller 222 inside the protective housing 1 and to carry out equipment maintenance.

[0030] Specifically, the anti-collision switching structure 21 includes a mounting base 211, a switching motor 212, a switching gear 213, a switching toothed plate 214, and a moving frame 215. The mounting base 211 is located inside the protective housing 1, and a slide 216 is provided on the mounting base 211. Two slide rods 217 that slide and engage with the slide 216 are provided on the rear side wall of the moving frame 215. The switching motor 212 is located at the inner top of the protective housing 1, and the switching gear 213 is located on the main shaft of the switching motor 212. The switching toothed plate 214 is horizontally arranged above the rear side wall of the protective housing 1, and the switching toothed plate 214 meshes with the switching gear 213. An installation notch 218 is provided on the front wall of the moving frame 215.

[0031] The switching motor 212 drives the switching gear 213 to rotate on the switching gear plate 214, thereby driving the moving frame 215 to move horizontally on the slide block 216 on the mounting base 211 via two slide rods 217, moving the position of the anti-collision roller 222 outward to outside the protective housing 1. After the anti-collision roller 222 extends out of the protective housing 1, it can cover a larger area and effectively protect ships of different sizes and berthing angles, increasing the flexibility and adaptability of protection and reducing the risk of collision caused by berthing deviations. Thus, the anti-collision roller 222 buffers and prevents collisions with ships. When replacing the old anti-collision roller 222, the switching motor 212 moves the position of the anti-collision roller 222 into the protective housing 1 for replacement. The anti-collision switching structure 21 moves the anti-collision roller 222 into the protective housing 1 for replacement, allowing operators to work in a relatively safe and enclosed environment, avoiding the risks of replacement operations in open areas or near dangerous locations such as ships. Meanwhile, the space inside the protective housing 1 is relatively concentrated, making it easier for operators to approach and operate the anti-collision roller 222, thus improving the convenience and efficiency of the replacement work.

[0032] The multiple anti-collision switching structures 21 are provided so that when one anti-collision roller 222 is replaced, the other anti-collision roller 222 can be moved outside the protective box 1 to perform anti-collision work against the impact of the ship.

[0033] It should be noted that the damage to the anti-collision roller 222 also has a certain cycle. It is also possible to switch, move and replace the anti-collision roller 222 when there are no ships coming and going in the port.

[0034] Specifically, the anti-collision buffer structure 22 includes a sliding frame 221 and an anti-collision roller 222. Two sliders 223 are provided at both ends of the sliding frame 221. The two ends of the sliding frame 221 are slidably connected to the mounting notch 218 through the corresponding two sliders 223. A plurality of buffer springs 224 are provided between the sliding frame 221 and the side wall of the mounting notch 218. A buffer damper 225 is provided inside the buffer spring 224. The buffer damper 225 is connected between the sliding frame 221 and the mounting notch 218. The anti-collision roller 222 is rotatably connected to the sliding frame 221. The anti-collision roller 222 and the sliding frame 221 are detachably connected.

[0035] When a ship impacts the protective roller, the roller causes the sliding frame 221 to move horizontally on the moving frame 215 via the corresponding slider 223. This causes the sliding frame 221 to compress the buffer spring 224 and the buffer damper 225. The buffer spring 224 can absorb part of the kinetic energy generated by the ship impact through its own elastic deformation, converting the kinetic energy into elastic potential energy for storage. The buffer damper 225 dissipates the impact energy into heat and other forms of energy through internal fluid flow and friction. The combination of these two effectively reduces the direct impact force of the ship impact on the hull and dock facilities, greatly reducing the impact force. It can effectively suppress the swaying and rebound of the ship caused by the impact, allowing the ship to dock more smoothly at the dock, facilitating the crew's mooring operations and improving the efficiency and convenience of ship docking. At the same time, it can also reduce the relative movement between the ship and the dock caused by wind and waves during docking, further enhancing the stability of docking.

[0036] Specifically, the anti-collision roller 222 and the sliding frame 221 are detachably connected by bolts 226.

[0037] After the ship is protected against collisions, when the collision rollers wear out, the bolts 226 are loosened to disassemble and replace the collision rollers 222. During replacement, the collision switching structure 21 is used to move the collision rollers 222 into the protective housing 1 for replacement. It should be noted that the space inside the protective housing 1 is very large, which can meet the disassembly and transportation operations of the collision rollers 222, and can meet the disassembly operations of the collision rollers 222 by multiple people at the same time.

[0038] Furthermore, the outer layer of the anti-collision roller 222 is made of rubber. Rubber has good elasticity and cushioning properties, effectively absorbing impact energy and reducing damage to equipment and personnel. At the same time, rubber also has good wear resistance and aging resistance, making it suitable for various working environments.

[0039] Specifically, the switching and fixing structure 23 includes two fixing electric cylinders 231, which are respectively installed on the inner top of the mounting base 211 and the protective box 1. Each fixing electric cylinder 231 has a fixing rod 232 on its telescopic end, and the moving frame 215 has a socket 219 for inserting into the fixing rod 232.

[0040] When the anti-collision roller 222 is moved outside the protective box 1 at the position of the movable frame 215 to prevent collision with the ship, the two fixed electric cylinders 231 work simultaneously to drive the two fixed plug rods 232 to move respectively, moving the fixed plug rods 232 into the plug holes 219 on the movable frame 215, thereby fixing the position of the movable frame 215, so that the movable frame 215 is fixed on the protective box 1, ensuring that the position of the anti-collision roller 222 will not move when the ship hits the anti-collision roller 222.

[0041] Specifically, each of the movable slots 11 is provided with a removable protective plate 13. When the anti-collision roller 222 moves into the protective housing 1, the protective plate 13 is installed on the movable slot 11 to seal the movable slot 11. A sealing gasket is provided between the protective plate 13 and the movable slot 11. The sealing gasket can prevent water from entering the protective housing 1. When the anti-collision roller 222 is protecting outward, the sealing gasket can also prevent water from entering the protective housing 1 from the gap between the movable frame 215 and the movable slot 11.

[0042] Furthermore, the protective housing 1, the movable frame 215, and the sliding frame 221 are all made of corrosion-resistant materials. When used in a harbor, they can prevent seawater from corroding and damaging them.

[0043] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A port fender apparatus, characterized by, It includes a protective housing (1), and the front side wall of the protective housing (1) is provided with multiple movable slots (11); Each movable slot (11) inside the protective housing (1) is provided with an anti-collision mechanism (2), and each anti-collision mechanism (2) includes an anti-collision switching structure (21), an anti-collision buffer structure (22), and a switching fixing structure (23); The anti-collision switching structure (21) is located inside the protective housing (1), and the anti-collision buffer structure (22) is located on the anti-collision switching structure (21). The switching and fixing structure (23) is located inside the protective box (1) and the switching and fixing structure (23) can fix the anti-collision switching structure (21) onto the protective box (1).

2. A port fender as claimed in claim 1, characterised in that: The anti-collision switching structure (21) includes a mounting base (211), a switching motor (212), a switching gear (213), a switching toothed plate (214), and a moving frame (215). The mounting base (211) is located inside the protective housing (1). The mounting base (211) is provided with a slide (216). The rear side wall of the movable frame (215) is provided with two slide rods (217) that slide in cooperation with the slide (216). The switching motor (212) is located at the top inside the protective housing (1), and the switching gear (213) is located on the main shaft of the switching motor (212). The switching tooth plate (214) is horizontally arranged on the upper part of the rear side wall of the protective box (1). The switching tooth plate (214) meshes with the switching gear (213). The front wall of the moving frame (215) is provided with an installation notch (218).

3. A port fender as claimed in claim 2, wherein: The anti-collision buffer structure (22) includes a sliding frame (221) and an anti-collision roller (222). Two sliders (223) are provided at both ends of the sliding frame (221). The two ends of the sliding frame (221) are slidably connected to the mounting notch (218) by two corresponding sliders (223). A plurality of equally spaced buffer springs (224) are provided between the sliding frame (221) and the side wall of the mounting notch (218). Each buffer spring (224) contains a buffer damper (225), which is connected between the sliding frame (221) and the mounting notch (218). The anti-collision roller (222) is rotatably connected to the sliding frame (221), and the anti-collision roller (222) and the sliding frame (221) are detachably connected.

4. A port fender as claimed in claim 3, wherein: The anti-collision roller (222) and the sliding frame (221) are detachably connected by bolts (226).

5. A port fender as claimed in claim 3, wherein: The outer layer of the anti-collision roller (222) is made of rubber.

6. A port fender as claimed in claim 2, wherein: The switching fixing structure (23) includes two fixing electric cylinders (231), which are respectively installed on the inner top of the mounting base (211) and the protective box (1). Each of the fixed electric cylinders (231) is provided with a fixed insertion rod (232) on its telescopic end, and the movable frame (215) is provided with an insertion hole (219) for inserting into the fixed insertion rod (232).

7. A port fender as claimed in claim 1, wherein: The protective box (1) is provided with a protective door (12) on the rear side wall.

8. A port fender as claimed in claim 1, wherein: Each of the moving slots (11) is provided with a removable protective plate (13).

9. A port fender as claimed in claim 8, characterised in that: A sealing gasket is provided between the protective plate (13) and the moving groove (11).

10. A port fender as claimed in claim 3, wherein: The protective housing (1), the movable frame (215), and the sliding frame (221) are all made of corrosion-resistant materials.