Ship lift anti-collision device descending in-place self-adaptive detection device

Abstract

A ship lift anti-collision device descending in-place self-adaptive detection device comprises a fixed supporting frame, and one side of the fixed supporting frame is elastically connected with a shell through an elastic rod and is horizontally guided; a proximity switch is installed in the shell, a first through hole is formed in the side, away from the fixed supporting frame, of the shell, and the proximity switch is right opposite to the first through hole. A blocking piece is installed at one end of the corresponding anti-collision truss, and the blocking piece stably makes contact with the shell when descending. According to the in-place self-adaptive detection device for the ship lift anti-collision device, the reliability and the stability of in-place detection of the ship lift anti-collision truss are improved.

Description

Technical Field

[0001] This utility model relates to the field of ship lift safety protection technology, and in particular to an adaptive detection device for the landing position of a ship lift anti-collision device. Background Technology

[0002] The anti-collision truss is a crucial safety feature in ship lift equipment. Its core function is to intercept ships that may collide with the cargo door due to stalling or other abnormal situations, thereby preventing major safety accidents. During ship lift operation, the accurate descent of the anti-collision truss directly affects the safety and operational efficiency of the ship lift. Its arrival signal is a key factor ensuring the normal operation of the system. If the arrival signal fails to trigger properly, the ship lift will stop operating, preventing ships from entering or exiting the cargo door normally, severely impacting navigation efficiency and safety.

[0003] Currently, ship lifts commonly use proximity switches as detection devices for the arrival signal of the anti-collision truss. Proximity switches utilize non-contact sensing principles, employing electromagnetic field or capacitance changes to detect the approach of a target object and thus control the switch's on / off state. While this technology offers advantages such as fast response and long lifespan, it suffers from the following significant drawbacks in practical applications:

[0004] 1) Position deviation issue: The anti-collision truss is susceptible to mechanical vibration during operation, causing the actual descent position to deviate from the preset detection point. Due to position deviation, the proximity switch may fail to accurately trigger the positioning signal, potentially leading to misjudgment or missed detection, causing the ship lift to malfunction or pose a safety hazard.

[0005] 2) Insufficient environmental adaptability: Proximity switches are usually exposed to harsh environments such as water, high humidity, and large temperature differences. Long-term operation can easily lead to shell corrosion and seal failure. When the internal circuit gets damp, the sensitivity decreases or even fails completely, which seriously shortens the equipment life and increases maintenance costs and downtime risks.

[0006] 3) Lack of dynamic error compensation: Existing detection devices lack adaptive adjustment functions and cannot compensate for detection errors caused by wear, deformation, or environmental disturbances in the anti-collision truss in real time. As the equipment operates for longer periods, the positioning accuracy gradually deviates, leading to a continuous decrease in system reliability and ultimately affecting the long-term stable operation of the ship lift. Utility Model Content

[0007] The technical problem this invention aims to solve is to provide an adaptive detection device for the lowering position of the anti-collision truss in a ship lift, addressing issues such as positional deviation, poor environmental adaptability, and lack of dynamic compensation mechanisms in existing anti-collision truss lowering position detection technologies. This invention achieves accurate detection and dynamic compensation of the anti-collision truss lowering position signal through an adaptive adjustment structure and multiple protective designs, ensuring the safety and reliability of the ship lift operation.

[0008] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0009] An adaptive detection device for the descent position of a ship lift anti-collision device includes a fixed support frame. One side of the fixed support frame is elastically connected to the outer shell via an elastic rod and is horizontally guided. A proximity switch is installed inside the outer shell. A first through hole is provided on the side of the outer shell away from the fixed support frame, and the proximity switch is directly opposite the first through hole. A stop is installed at one end of the corresponding anti-collision truss. When the stop descends, it makes smooth contact with the outer shell.

[0010] The elastic rod includes a spring and a guide rod. The two ends of the spring are connected to the fixed support frame and the outer shell, respectively. One end of the guide rod is fixedly connected to the fixed support frame, and the other end freely passes through the hole on the outer shell and extends into the outer shell.

[0011] The outer casing has an inclined surface at the upper end of one side of the first through hole, and at least one set of guide pulleys are installed on the inclined surface along the slope direction.

[0012] The lower end of the stop has an inclined surface on the side facing the guide pulley.

[0013] The housing has a support frame inside, and the support frame has a through hole, at which a proximity switch is installed.

[0014] The outer casing has a detachable panel on its side, which is fixed to the outer casing with screws.

[0015] The outer casing is made of stainless steel.

[0016] This utility model provides an adaptive detection device for the landing position of a ship lift anti-collision device, which has the following technical effects:

[0017] 1) The outer shell is elastically connected to the fixed support frame by springs; at the same time, a guide pulley group is set on the outer shell. The two are designed together to effectively compensate for the displacement deviation of the anti-collision truss caused by mechanical vibration, etc., and ensure that the stop and the outer shell can always be in stable contact, thereby accurately triggering the positioning signal and providing a reliable signal basis for subsequent operations.

[0018] 2) Both the outer casing and the stop are made of stainless steel, giving them corrosion resistance and robust structural strength. Furthermore, a specially designed bevel ensures a smooth transition when the stop contacts the casing, effectively reducing mechanical impact and wear. Simultaneously, the stability and reliability of the contact process are fully guaranteed. In addition, the interaction between the bevel and the guide pulley further optimizes the alignment accuracy between the stop and the casing, completely avoiding false triggering or missed detection caused by positional deviations, significantly improving the accuracy of positioning detection, and greatly extending the service life of the device.

[0019] 3) The spring elastic connection structure can dynamically adjust the relative position of the outer shell and the stop according to the actual position of the anti-collision truss. This can avoid the continuous accumulation of detection errors caused by long-term operation, effectively suppress the accumulated errors in long-term operation, and ensure that the device always maintains a stable and reliable operating state under dynamic working conditions. Attached Figure Description

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments:

[0021] Figure 1 This is a schematic diagram (front view) of the layout of this utility model.

[0022] Figure 2 This is a schematic diagram of the layout of this utility model (right view).

[0023] Figure 3 for Figure 2 A magnified view of a portion of point A in the middle.

[0024] Figure 4 This is a schematic diagram of the internal structure of this utility model.

[0025] Figure 5 This is a bottom view of the present invention.

[0026] Figure 6 This is the right view of the present invention.

[0027] Figure 7 This is the front view of the support frame in this utility model.

[0028] In the diagram: 1. Fixed support frame; 2. Spring; 3. Housing; 4. Guide pulley; 5. Proximity switch; 6. First through hole; 7. Support frame; 8. Sliding wheel; 9. Wire; 10. Second through hole; 11. Stop; 12. Anti-collision truss; 13. Third through hole; 14. Screw; 15. Guide rod. Detailed Implementation

[0029] like Figure 1-3 As shown, an adaptive detection device for the descent position of a ship lift anti-collision truss is used to detect the descent position signal of the ship lift anti-collision truss. The detection device includes a fixed support frame 1, which is vertically installed and its lower end is fixed to the ground, providing stable support for the entire device and ensuring its stability during operation. The fixed support frame 1 is fixedly connected to one side of three springs 2, and the other side of the three springs 2 is fixedly connected to a housing 3. The springs 2 provide elastic cushioning and fine-tuning capability to the housing 3. A guide rod 15 passes through the corresponding spring 2, with one end fixed to the side of the fixed support frame 1 and the other end freely passing through the side of the housing 3. The guide rod 15 guides the movement direction of the spring 2, preventing lateral displacement or twisting of the spring 2 during compression or tension, while also enhancing the stability of the device.

[0030] The cooperation between spring 2 and guide rod 15 effectively compensates for displacement deviations of the anti-collision truss 12 caused by mechanical vibration, ensuring that the stop 11 and the outer shell 3 can always maintain stable contact, thereby accurately triggering the positioning signal and providing a reliable signal basis for subsequent operations. Spring 2 plays a corresponding buffering role, preventing the outer shell 3 from being subjected to excessive impact or from being unable to adjust its position, while guide rod 15 further improves the accuracy and reliability of the device, ensuring that the device can still operate stably under complex working conditions.

[0031] like Figure 2 As shown, the stop 11 is fixedly installed on the anti-collision truss 12. The stop 11 is made of stainless steel, and its lower end has a beveled contact angle with the detection device.

[0032] The inclined surface at the lower end of the stop 11 ensures smooth contact between the anti-collision truss 12 and the outer shell 3 during descent, effectively preventing jamming or collisions. The high strength and corrosion resistance of its material allow the device to adapt to its operating environment, thus effectively ensuring the service life and reliability of the stop 11.

[0033] like Figure 4 As shown, the outer shell 3 is made of stainless steel and has a cuboid structure. The contact angle with the stop is an inclined surface. Two guide pulleys 4 are installed on the inclined surface to guide the stop 11 to make smooth contact with the outer shell 3 when the anti-collision truss 12 is lowered into place.

[0034] The main function of the guide pulley 4 is to guide the stop 11 and the outer shell 3 to make smooth contact and achieve transition when the anti-collision truss 12 is lowered into position, so that the two can make contact with the outer shell 3 without impact. This can effectively avoid damage to the device due to contact impact and ensure the stability and reliability of the entire device.

[0035] like Figure 6 As shown, a first through hole 6 is provided on the right side surface of the housing 3 for transmitting and receiving signals from the proximity switch 5, ensuring that the proximity switch 5 can work normally and realize its detection and other functions.

[0036] like Figure 7 As shown, a support frame 7 is provided inside the housing 3, and a second through hole 10 is provided on the support frame 7 for fixing the proximity switch 5 and ensuring that the proximity switch 5 is stably positioned inside the housing 3. The proximity switch 5 has an IP67 or higher protection rating, is suitable for high humidity and dusty environments, can work normally in relatively harsh environments, and is not easily damaged by external factors such as dust and moisture.

[0037] During the calibration process, after the anti-collision truss 12 has descended into position and the position of the stop triggering proximity switch 5 has been clearly calibrated, the opening heights of the first through hole 6 and the second through hole 10, as well as the installation distance between the support frame 7 and the proximity switch 5, are determined sequentially. This ensures that all components of the entire device can coordinate and cooperate to achieve optimal performance. Once the precise positions of the stop 11 and proximity switch 5 are accurately calibrated in the initial calibration phase, long-term stable and reliable operation can be achieved. Subsequent routine status checks are sufficient, eliminating the need for repeated tedious calibration work or complex adjustments, reducing maintenance costs, improving the overall reliability and safety of the system, and providing a solid guarantee for the long-term stable operation of the equipment.

[0038] like Figure 5 As shown, a third through hole 13 is provided at the bottom of the housing 3. The third through hole 13 is used for the wire 9 of the proximity switch 5 to pass through, which facilitates the arrangement and connection of the wire 9 and ensures that the proximity switch 5 can obtain normal power supply and signal transmission lines.

[0039] like Figure 4 As shown, the lower end face of the fixed support frame 1 is higher than the lowest edge of the sliding wheel 8, and a pair of sliding wheels 8 are installed at the bottom of the outer shell 3. The sliding wheels 8 are used to support the outer shell 3 and realize the sliding adjustment of the outer shell 3 on the ground, ensuring the flexibility and operability of the entire device.

[0040] like Figure 3 As shown, after reaching the designated working position, a magnet is placed on the ground, and the lower end of the corresponding fixed support frame 1 is attracted to the magnet. The magnetic force of the magnet ensures that the device is positioned and fixed, thus preventing the entire device from moving along the ground. Alternatively, after reaching the designated working position, the lower end of the fixed support frame 1 is welded to the ground to ensure a stable center of gravity.

[0041] like Figure 4 As shown, the outer casing 3 has a detachable panel on its side for easy internal wiring, installation, and maintenance. The panel is secured to the outer casing 3 with four screws 14, achieving a stable connection and quick disassembly. A sealing ring is embedded in the edge of the panel, and the contact surface between the sealing ring and the outer casing 3 forms a waterproof seal, providing excellent protection and waterproof performance.

[0042] The outer casing 3 has a removable panel on its side. The main function of the panel is to facilitate internal wiring, installation, and maintenance. By removing the panel, staff can easily access the support frame 7, proximity switch 5, and wires 9 inside the outer casing 3 to perform corresponding maintenance operations. For example, wiring can be made easier, components can be placed in the appropriate position during installation, and maintenance can be quickly inspected and repaired.

[0043] The panel is secured to the outer casing 3 with four screws 14. This method of fixing ensures a stable connection while allowing for quick disassembly, preventing work efficiency from being affected by difficult disassembly. Furthermore, a sealing ring is embedded in the edge of the panel, and the contact surface between the sealing ring and the outer casing 3 forms a waterproof seal. This gives the entire device excellent protection and waterproof performance, effectively preventing moisture and other adverse external factors from entering the outer casing 3 and damaging internal electrical components, ensuring the normal operation of the device in various environments.

[0044] An adaptive detection method for the landing position of a ship lift anti-collision device includes the following steps:

[0045] Initial state of proximity switch detection device:

[0046] Step 1: When the anti-collision truss 12 is in its raised position, the stop 11 maintains a certain distance from the outer shell 3. The spring 2 is in its natural state, and the outer shell 3 maintains a certain distance from the fixed support frame 1.

[0047] Proximity switch detection device testing:

[0048] Step 2: The anti-collision truss 12 begins to descend, and the stop 11 descends synchronously. When the anti-collision truss 12 approaches its predetermined position, the inclined surface of the stop 11 begins to contact the guide pulley 4 of the outer shell 3. At this time, the guide pulley 4 on the outer shell and the inclined surface of the stop 11 begin to play a crucial role, guiding the stop 11 to make smooth and impact-free contact with the outer shell. When the stop 11 makes instantaneous contact with the outer shell 3, the spring 2 begins to be stressed and deformed, thus providing elastic cushioning. Under the action of the spring 2, the outer shell 3 can make slight positional adjustments, ensuring a tighter and more stable contact between the stop 11 and the outer shell 3.

[0049] Step 3: When the stop 11 is fully in place, i.e., in close contact with the housing 3, the proximity switch 5 is triggered. The proximity switch 5 is a non-contact switch; when an object approaches within a certain distance, its internal sensing element generates an output signal. In this device, the sensing element of the proximity switch 5 is designed to detect whether the stop 11 is in place. Once the proximity switch 5 is triggered, it immediately sends an electrical signal, which is received and processed by the control system. Based on the received proximity switch signal, the control system determines whether the crash barrier has been lowered into place. If the crash barrier has been lowered into place, the control system will execute the corresponding subsequent operations.

Claims

1. A ship lift anti-collision device with adaptive detection function upon reaching the lowered position, characterized in that: It includes a fixed support frame (1), one side of which is elastically connected to the outer shell (3) and horizontally guided by an elastic rod; a proximity switch (5) is installed inside the outer shell (3), and a first through hole (6) is provided on the side of the outer shell (3) away from the fixed support frame (1), with the proximity switch (5) and the first through hole (6) facing each other; a stop (11) is installed at one end of the corresponding anti-collision truss (12), and the stop (11) makes smooth contact with the outer shell (3) when it descends.

2. The adaptive detection device for the landing position of a ship lift anti-collision device according to claim 1, characterized in that: The elastic rod includes a spring (2) and a guide rod (15). The two ends of the spring (2) are connected to the fixed support frame (1) and the outer shell (3) respectively. One end of the guide rod (15) is fixedly connected to the fixed support frame (1), and the other end freely passes through the hole on the outer shell (3) and extends into the outer shell (3).

3. The adaptive detection device for the lowering position of a ship lift anti-collision device according to claim 2, characterized in that: The outer shell (3) has an inclined surface at the upper end of the first through hole (6) on one side, and at least one set of guide pulleys (4) are installed on the inclined surface along the slope direction.

4. The adaptive detection device for the lowering position of a ship lift anti-collision device according to claim 3, characterized in that: The lower end of the stop (11) has an inclined surface on the side facing the guide pulley (4).

5. The adaptive detection device for the lowering position of a ship lift anti-collision device according to claim 4, characterized in that: The housing (3) has a support frame (7) inside, and a through hole (10) is provided on the support frame (7). A proximity switch (5) is installed at the through hole (10).

6. The adaptive detection device for the lowering position of a ship lift anti-collision device according to claim 5, characterized in that: The outer casing (3) has a detachable panel on its side, which is fixed to the outer casing (3) by screws (14).

7. The adaptive detection device for the landing position of a ship lift anti-collision device according to claim 6, characterized in that: The outer shell (3) is made of stainless steel.

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