An anti-sinking alarm system for an airport passenger lift vehicle

Abstract

This utility model provides an airport passenger boarding bridge anti-settlement alarm system, belonging to the technical field of airport ground support equipment. It includes a power supply and safety system, safety boots, an audio alarm, a guardrail position sensor, and anti-settlement toggle switches and push-button switches in the driver's cab. The power supply and safety system supplies power to the system and protects the circuit through ACC interfaces, GND interfaces, and safety devices. The safety boots are located between the docking platform and the cabin door to detect aircraft settlement. The audio alarm is triggered by a low level and plays replaceable voice prompts. The guardrail position sensor ensures that it only activates when the guardrail is open. This utility model solves the problems of passenger boarding bridges being stuck by cabin doors due to aircraft settlement, lack of real-time perception and early warning, and low operator response efficiency. By automatically triggering voice alarms, accurately monitoring settlement status, and providing flexible manual control, it improves the safety, reliability, and ease of operation of passenger boarding bridges, and is suitable for various airport ground support operations.

Description

Technical Field

[0001] This utility model relates to the field of airport ground support equipment technology, and in particular to an airport passenger boarding stairs anti-sinking alarm system. Background Technology

[0002] With the rapid development of civil aviation transportation, passenger boarding stairs, as an important boarding auxiliary device connecting the terminal building and the aircraft, have been widely used in various airports. After a flight docks, the passenger boarding stairs precisely dock with the aircraft door via their platform, ensuring the safety and convenience of passengers boarding and disembarking. During ground support operations such as passenger boarding, refueling, and cargo loading and unloading, the aircraft tends to settle due to continuous load changes, especially under heavy load conditions. To ensure operational efficiency, passenger boarding stairs often remain in a docked state for an extended period after the aircraft has come to a complete stop. This process requires high docking precision and operates in a complex environment.

[0003] However, in actual operation, when an aircraft settles due to load changes, a significant settlement (e.g., exceeding 20 centimeters) can easily cause the aircraft doors to press down onto the passenger boarding stairs' docking platform. If this occurs, the passenger boarding stairs cannot be evacuated, and it will also hinder the aircraft from closing its doors and taking off normally. In severe cases, it may even cause equipment damage or safety accidents. Existing passenger boarding stairs generally lack real-time sensing and early warning mechanisms for settlement, relying on manual observation and judgment. This not only suffers from lag but is also susceptible to factors such as personnel distraction, failing to effectively avoid sudden risks. Therefore, there is an urgent need for an anti-settlement device with automatic sensing and alarm functions to improve the safety and reliability of passenger boarding stairs during operation. Utility Model Content

[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of this section, the abstract and the title of this utility model. Such simplifications or omissions shall not be used to limit the scope of this utility model.

[0005] In view of the problems existing in the above and / or prior art, the present invention is proposed.

[0006] Therefore, the technical problem to be solved by this utility model is to provide a passenger boarding bridge anti-sinking system that can detect aircraft sinking in real time and issue early warnings, so as to prevent the passenger boarding bridge from being crushed by the cabin door due to sinking, which would affect evacuation and flight safety.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an airport passenger boarding stairs anti-settlement alarm system, comprising,

[0008] The power supply and fuse system includes an ACC interface, a GND interface, and a series fuse device;

[0009] Safety boots, located between the passenger boarding bridge docking platform and the aircraft door, include internal contacts;

[0010] An audio alarm, electrically connected to the safety boot, is configured to be triggered by a low level.

[0011] The guardrail position sensor includes a normally open contact that is electrically connected to the GND interface.

[0012] The anti-settlement toggle switch in the cab is a normally closed switch and is located inside the cab.

[0013] A push-button switch, electrically connected to the audio alarm, is configured for manual triggering;

[0014] The power supply and safety system is electrically connected to each component, the safety boot and the audio alarm form a trigger circuit, the guardrail position sensor is connected to the GND interface, and the cab anti-settlement toggle switch and push button switch are electrically connected to the audio alarm.

[0015] As a preferred embodiment of the airport passenger boarding stairs anti-sinking alarm system of this utility model, the audio alarm is configured to play voice prompts with different content, and the voice files can be replaced.

[0016] As a preferred embodiment of the airport passenger boarding stairs anti-sinking alarm system of this utility model, the internal contacts of the safety boot are normally open contacts, which close only when the safety boot is compressed.

[0017] In a preferred embodiment of the airport passenger boarding bridge anti-sinking alarm system of this utility model, the normally open contact of the guardrail position sensor closes when the guardrail is opened, forming a circuit with the GND interface.

[0018] As a preferred embodiment of the airport passenger boarding bridge anti-settlement alarm system of this utility model, the anti-settlement toggle switch in the driver's cab is configured to disconnect from the audio alarm by manual operation.

[0019] As a preferred embodiment of the airport passenger boarding stairs anti-sinking alarm system of this utility model, the push-button switch and the audio alarm form an independent trigger circuit and are configured to be manually closed.

[0020] As a preferred embodiment of the airport passenger boarding bridge anti-sinking alarm system of this utility model, the safety device is a fuse or overload protector, connected in series between the ACC interface and other components.

[0021] The beneficial effects of this utility model are as follows: The passenger boarding bridge anti-settlement alarm system of this utility model, through the coordinated operation of the power supply and insurance system, safety boots, audio alarm, guardrail position sensor, anti-settlement toggle switch and push button switch in the driver's cab, can promptly issue a voice alarm when the aircraft settles, improving operational safety; it only takes effect when the guardrail is open, avoiding false triggering and improving reliability; it supports manual control, making operation flexible and adaptable to various scenarios; the voice prompts are replaceable to meet different usage needs; and it adopts a stable power supply and circuit protection design to enhance system durability. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments 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 based on these drawings without creative effort. Among them:

[0023] Figure 1 This is a schematic diagram of the anti-settlement alarm system of this utility model. Detailed Implementation

[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0025] 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. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0026] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, actual manufacturing should include the three-dimensional spatial dimensions of length, width, and depth.

[0027] Furthermore, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that excludes other embodiments.

[0028] Example

[0029] Reference Figure 1This utility model provides an airport passenger boarding bridge anti-settlement alarm system, including a power supply and safety system 1, comprising an ACC interface 1a, a GND interface 1b, and a series-connected safety device 1c; a safety boot 2, located between the passenger boarding bridge docking platform and the aircraft door, including an internal contact 2a; an audio alarm 3, electrically connected to the safety boot 2, configured for low-level triggering; a guardrail position sensor 4, including a normally open contact 4a, electrically connected to the GND interface 1b; a driver's cab anti-settlement toggle switch 5, a normally closed switch located in the driver's cab; and a push-button switch 6, electrically connected to the audio alarm 3, configured for manual triggering. The power supply and safety system 1 is electrically connected to all components, the safety boot 2 and the audio alarm 3 form a trigger circuit, the guardrail position sensor 4 is connected to the GND interface 1b, and the driver's cab anti-settlement toggle switch 5 and the push-button switch 6 are electrically connected to the audio alarm 3.

[0030] The power supply and safety system 1 is connected to the passenger elevator car's constant power supply via ACC interface 1a, providing a stable power source for the entire system and ensuring the normal operation of all components during long-term operation. GND interface 1b connects to the vehicle's negative terminal, forming a complete circuit loop to ensure stable signal transmission. Safety device 1c, using fuses or overload protectors, is connected in series between ACC interface 1a and other components to effectively prevent current overload or short circuits, protecting the system from electrical faults and improving equipment durability.

[0031] Safety shoe 2 is installed in the contact area between the passenger boarding bridge docking platform and the aircraft door. Its internal contact 2a is a normally open contact, which closes only when the safety shoe 2 is deformed by pressure due to the aircraft's settlement caused by load changes, forming a trigger circuit. The design of safety shoe 2 can sensitively detect the aircraft's settlement status, prevent the passenger boarding bridge from being stuck by the door, ensure smooth evacuation, and significantly improve operational safety.

[0032] The audio alarm 3 is triggered by a low-level signal and is electrically connected to the safety shoe 2. When the internal contact 2a closes, it immediately plays a preset voice prompt, such as "Attention, aircraft sinking, please check docking status," effectively reminding operators to take action. The audio alarm 3 supports different voice prompts, and the voice files can be changed via an external interface to adapt to multiple languages ​​or different scenario requirements, improving the system's user-friendly design and applicability.

[0033] The normally open contact 4a of the guardrail position sensor 4 is electrically connected to the GND interface 1b, and closes only when the passenger boarding bridge guardrail is open, forming an effective signal loop. This design ensures that the system is activated only during actual docking operations, avoiding false triggering in non-operational states, thereby improving the accuracy and energy efficiency of system operation.

[0034] The cab anti-sinking toggle switch 5 is a normally closed switch, installed in the cab in a location easily accessible to the operator. It can be manually toggled upwards to disconnect from the audio alarm 3. This switch is used to quickly deactivate the alarm in emergency situations, preventing unnecessary continuous alarms after confirming safety, thus improving operational flexibility and efficiency.

[0035] The push-button switch 6 and the audio alarm 3 form an independent trigger circuit, configured for manual closure. The operator can trigger the audio alarm 3 by pressing it to play a safety warning sound, such as "Please be careful when going up and down the ladder." This function supports safety reminders in non-settlement scenarios, enhancing the standardization of work procedures. The safety device 1c further ensures the safe operation of the system under abnormal current conditions. Its fuse or overload protector design can quickly disconnect the circuit in the event of an abnormal current, protecting other components from damage and extending the system's service life.

[0036] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape and proportion of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0037] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0038] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0039] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An airport passenger boarding stairs anti-settlement alarm system, characterized in that: include, The power supply and fuse system (1) includes an ACC interface (1a), a GND interface (1b) and a series fuse device (1c); Safety boot (2), located between the passenger boarding bridge docking platform and the aircraft door, includes internal contacts (2a); An audio alarm (3) is electrically connected to the safety boot (2) and configured to be triggered at a low level; The guardrail position sensor (4) includes a normally open contact (4a) that is electrically connected to the GND interface (1b); The anti-settlement toggle switch (5) in the cab is a normally closed switch and is located in the cab. A push-button switch (6) is electrically connected to the audio alarm (3) and configured for manual triggering; The power supply and safety system (1) is electrically connected to each component, the safety boot (2) and the audio alarm (3) form a trigger circuit, the guardrail position sensor (4) is connected to the GND interface (1b), and the cab anti-sinking toggle switch (5) and push button switch (6) are electrically connected to the audio alarm (3).

2. The airport passenger boarding stairs anti-settlement alarm system according to claim 1, characterized in that: The audio alarm (3) is configured to play different voice prompts, and the voice files can be changed.

3. The airport passenger boarding stairs anti-settlement alarm system according to claim 2, characterized in that: The internal contact (2a) of the safety boot (2) is a normally open contact that closes only when the safety boot (2) is compressed.

4. The airport passenger boarding stairs anti-settlement alarm system according to claim 3, characterized in that: The normally open contact (4a) of the guardrail position sensor (4) closes when the guardrail is opened, forming a circuit with the GND interface (1b).

5. The airport passenger boarding stairs anti-settlement alarm system according to claim 4, characterized in that: The cab anti-sinking toggle switch (5) is configured to disconnect from the audio alarm (3) by manual operation.

6. The airport passenger boarding stairs anti-settlement alarm system according to claim 5, characterized in that: The push-button switch (6) and the audio alarm (3) form an independent trigger circuit and are configured to be manually closed.

7. The airport passenger boarding stairs anti-settlement alarm system according to claim 6, characterized in that: The safety device (1c) is a fuse or overload protector, connected in series between the ACC interface (1a) and other components.

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