Warning device for preventing safety boots from being mistakenly triggered

Abstract

The utility model belongs to the technical fields of'aircraft equipment ', 'safety equipment', 'mechanical protection devices' and the like, and provides a warning device for preventing safety boots from being mistakenly triggered compared with the prior art. By integrating the first detection device, the second detection device, the alarm device and the control device, comprehensive monitoring and timely processing of obstacles in a safety area are achieved, when the first detection device detects that the obstacles exist in the safety area, it is judged that the risk that the safety boots touch the first level by mistake possibly occurs, and the first alarm device is controlled to give an alarm; further, if the second detection device also detects that an obstacle exists above the safety boot, it is judged that the safety boot possibly touches the second level by mistake, a second alarm device is controlled to give an alarm, the person is reminded to be prevented from stepping on the safety boot, and workers are reminded to conduct manual inspection; and the bridge descending risk caused by mistaken touch of the safety boots is effectively prevented, so that the operation safety and reliability of the boarding bridge are improved.

Description

Technical Field

[0001] The utility model belongs to the technical fields of "aircraft equipment field", "safety equipment field" and "mechanical protection device field", and specifically relates to a warning device that prevents safety boots from being accidentally triggered. Background Art

[0002] Safety boots are a type of aircraft door protection device, installed in the area where the left side of the aircraft door is connected to the aircraft door, under the open aircraft door, and are used to detect excessive downward movement of the aircraft fuselage. When the safety boots are triggered, the boarding bridge will make an emergency descent to avoid the aircraft door. Today's safety boots usually use safety touch edges, limit switches, etc. as the main structure, and are placed under the aircraft door. As long as the safety boots are touched, an emergency descent is triggered to prevent damage to the aircraft door.

[0003] In actual work, we found that in some cases, Airbus models may accidentally touch safety boots. For example, when boarding or disembarking, children may enter the area out of curiosity and deliberately step on safety boots. Some passengers may stand in the area waiting to board or disembark, not knowing the safety boots under their feet, and step on them by mistake. Some flight attendants may place passengers' suitcases in the area while waiting to board or disembark, which may accidentally press on safety boots and cause the bridge to drop. We also found that during post-flight operations, cleaning staff or maintenance staff often place large garbage bags for cleaning aircraft, or food carts, etc. in the area. Due to the automatic leveling function of the boarding bridge, these obstacles may touch safety boots, causing the bridge to drop suddenly, causing people to fall, and at the same time increasing the distance between the pick-up platform and the aircraft, which may cause people to fall, and even lead to major accidents such as the aircraft door being scraped off the aircraft. Utility Model Content

[0004] In order to solve the defects of the prior art mentioned above, the utility model proposes a warning device for preventing the safety boots from being accidentally triggered.

[0005] The technical solution adopted by the utility model is as follows:

[0006] A warning device for preventing safety boots from being accidentally triggered, comprising:

[0007] A first detection device for detecting whether there are obstacles in the safety area;

[0008] A second detection device for detecting whether there is an obstacle above the safety boots;

[0009] A first alarm device for issuing a warning of the presence of obstacles in the safety area;

[0010] A second alarm device for issuing a warning that an obstacle exists above the safety boots;

[0011] A controller for centrally processing the signal data collected by the first detection device and the second detection device, and issuing instructions to control the activation of the first alarm device and the second alarm device.

[0012] Optionally, the first detection device is an ultrasonic sensor arranged on the bulkhead in the safe area, and the sound wave coverage area of ​​the ultrasonic sensor is the safe area.

[0013] Optionally, the second detection device is a laser sensor arranged on the left base of the safety boot.

[0014] Optionally, the laser beam of the laser sensor is directed vertically upward.

[0015] Optionally, the first alarm device and the second alarm device are both sound and light alarms installed on the bulkhead of the safety area.

[0016] Optionally, the controller is a programmable controller.

[0017] Optionally, the controller is electrically connected to the first detection device, the second detection device, the first alarm device and the second alarm device respectively. In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0018] In general, compared with the prior art, the utility model provides a warning device for preventing accidental triggering of safety boots. By integrating the first and second detection devices, the alarm device and the control device, comprehensive monitoring and timely processing of obstacles in the safety area are achieved. When the first detection device detects an obstacle in the safety area, it is determined that there may be a level 1 risk of accidental contact of the safety boots, and the first alarm device is controlled to sound an alarm to prompt people in the safety area to leave. Furthermore, if the second detection device also detects that there is an obstacle above the safety boots, it is determined that there may be a level 2 risk of accidental contact of the safety boots, and the second alarm device is controlled to sound an alarm to prevent people from stepping on the safety boots, and remind the staff to conduct manual inspection, effectively preventing the risk of bridge lowering caused by accidental contact of the safety boots, thereby improving the safety and reliability of boarding bridge operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be described by way of examples with reference to the accompanying drawings, in which:

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is a system architecture diagram of the utility model;

[0022] Figure 3 It is a flow chart of the working process of the utility model. DETAILED DESCRIPTION

[0023] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application usually described and shown in the drawings here can be arranged and designed in various configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0024] This embodiment provides a warning device to prevent the safety boots from being accidentally triggered. Figure 1 , 2 , including:

[0025] A first detection device 4 for detecting whether there are obstacles in the safety area 1;

[0026] A second detection device 5 for detecting whether there is an obstacle above the safety boots 2;

[0027] A first alarm device for issuing a warning of the presence of obstacles in the safety area;

[0028] A second alarm device for issuing a warning that an obstacle exists above the safety boots;

[0029] A controller for centrally processing the signal data collected by the first detection device 4 and the second detection device 5, and issuing instructions to control the alarm device 6 and the control device to start, wherein the controller is electrically connected to the first detection device 4, the second detection device 5, the first alarm device and the second alarm device respectively.

[0030] The implementation steps are as follows:

[0031] Step 1: Set up the first detection device 4. The first detection device 4 can optionally use an infrared sensor, an ultrasonic sensor or a laser sensor, etc., to detect whether there are obstacles in the safety area 1, and transmit the collected data to the controller by wired or wireless means. The installation position is at an appropriate position in the area of ​​the boarding bridge door 3 to ensure coverage of the entire area. Preferably, the model of the ultrasonic sensor is HC-SR04, the operating voltage is 5V, the operating current is 15mA, the ranging range is 2cm-400cm, the ranging accuracy can reach 0.3cm, and the sound wave coverage area is the safety area 1.

[0032] Step 2: Set up a second detection device 5, which can be a visual sensor, laser sensor, etc., to detect whether there is an obstacle above the safety boot 2. Install it at an appropriate position on one side of the safety boot 2, such as the base on the left side of the handle of the safety boot 2, to ensure that possible obstacles can be accurately detected, and also transmit the collected data to the controller by wired or wireless means. The model of the laser sensor is LDM4x, the operating voltage is 5V, the operating current is 15mA, the ranging range is 2cm-400cm, the ranging accuracy can reach 0.3cm, and the laser beam direction is vertically upward.

[0033] Step 3: Set up the alarm device 6. The alarm device 6 preferably has an audible and visual alarm of model LTE-1101J. The arrangement position can be selected to be set on the bulkhead of the safety area 1. The alarm device 6 has different built-in voice data packets, which are divided into the first alarm device and the second alarm device according to the different broadcast contents. The first alarm device is used to issue a reminder message that there are obstacles in the safety area, for example: "Please leave the current area". The second alarm device is used to issue a reminder message that there are obstacles above the safety boots, for example: "Please avoid stepping on the safety boots, please leave the people above the safety boots, etc."

[0034] Step 4: Set up the controller. The controller is a programmable controller, model PLC-300, with an operating voltage of 24V and an operating current of 30mA. It can centrally process the signal data collected by the first detection device 4 and the second detection device 5 according to the preset program, and issue instructions to control the alarm device 6 and the control device to start.

[0035] The above are the specific implementation steps of this embodiment. Through the above steps, comprehensive monitoring and timely alarm processing of obstacles in the safety area 1 can be achieved, and the risk of bridge lowering caused by accidental contact of the safety boots 2 can be effectively prevented, thereby improving the safety and reliability of boarding bridge operations.

[0036] In a further implementation, taking into account factors such as the height of children and small cabin cases, the first detection device 4 and the sound and light alarm device in the pick-up platform area are installed about 1 meter above the movable floor, with the detection direction toward the aircraft door 3. The area range of the triggering action covers the right edge of the aircraft door 3 to the inside of the canopy, and the area distance of the triggering action is from the outside of the front of the aircraft door 3 to the fixed position of the detection switch.

[0037] In a further embodiment, the second detection device 5 is fixed at a position parallel to the upper edge of the base, with the detection direction toward the top of the canopy, and the height range of the triggering action is from the upper edge of the aircraft cabin door 3 to the lower edge of the aircraft cabin door 3.

[0038] In a further implementation, the normally closed signals of two detection devices are selected to be connected to a PLC controller, which can be used to detect whether the two detection devices have faults. For example, if the first detection device is activated and the normally closed signal changes to normally open, if there are no obstacles in the area at this time, it can be determined that the detection device has faults.

[0039] In a further embodiment, the device further comprises a start switch, specifically a start button on the operating table, and when the safety boots 2 anti-accidental touch device needs to be turned on, it is turned on by the start button. If the boarding bridge operator needs to enter the area to inspect the boarding bridge, or the maintenance personnel need to enter the area to repair the aircraft cabin door 3, etc., the safety boots anti-accidental touch device can be temporarily stopped by the one-touch start button on the boarding bridge operating table.

[0040] Working principle and use:

[0041] like Figure 3 As shown, if the start button is pressed, the safety boots anti-mistouch device function is started, the action signal of the receiving platform area detection device, the action signal of the safety boots 2 switch, and the action signal of the safety boots 2 action are connected to the input end of the PLC central controller, and the alarm device 6 and the boarding bridge descending contactor are connected to the output end of the PLC;

[0042] After the safety boots 2 are put into use, if the PLC controller does not receive the feedback signal from the first detection device 4 and the second detection device 5 in the receiving platform area, the function of the safety boots 2 remains normal. When the aircraft descends, the triggering action signal of the safety boots 2 changes, and the PLC controller outputs to the boarding bridge descending contactor to make the bridge descend;

[0043] If the PLC controller receives a feedback signal from the first detection device 4 in the receiving platform area, that is, it determines that there may be a risk of accidental contact of the safety boots 2, the controller immediately activates the first alarm device through the output end to remind the staff that there are obstacles in the area and warn non-staff to leave the area;

[0044] When the obstacles in safety area 1 are removed, the alarm stops;

[0045] Furthermore, if the second detection device 5 simultaneously detects that there is an obstacle above the safety boots 2, that is, it is determined that there may be a risk of accidental contact of the safety boots 2 to the second level, the controller immediately activates the second alarm device through the output end to remind that there is an obstacle above the safety boots, warn non-staff to leave the area, and remind staff to conduct manual inspections to prevent the risk of bridge lowering caused by accidental contact of the safety boots 2;

[0046] When the obstacle signal above the safety boots 2 disappears, the alarm stops.

[0047] Compared with the existing technology, the beneficial effects of this technical solution are as follows:

[0048] 1. Comprehensive monitoring: The utility model realizes comprehensive monitoring of obstacles in the safety area 1 by integrating the first and second detection devices 5. It can not only detect obstacles in the safety area 1, but also detect obstacles above the safety boots 2, thereby realizing all-round monitoring of the safety area 1, effectively preventing accidental touching of the safety boots 2 due to children playing, passengers stepping on them by mistake, or luggage compartments pressing them by mistake, thereby improving safety.

[0049] 2. Timely processing: The utility model sets a first alarm device and a second alarm device. When an obstacle is detected, an alarm can be immediately sounded to prompt people in the safety area 1 to leave and remind staff to conduct manual inspections, thereby effectively preventing accidental touching of the safety boots 2, avoiding unnecessary bridge lowering operations, and improving the reliability of the operation.

[0050] 3. Intelligent processing: The controller of the utility model can centrally process the signal data collected by the first detection device 4 and the second detection device 5, and issue instructions to control the alarm device 6 and the control device to start, thereby realizing intelligent processing and being able to promptly and accurately handle complex situations, such as obstacles such as large garbage bags or food trucks, thereby avoiding problems of untimely or inaccurate processing and reducing safety risks.

[0051] 4. Improve safety: The safety boots anti-accidental touch device in the boarding bridge door area of ​​the utility model can effectively prevent the risk of bridge lowering caused by accidental touch of the safety boots 2, thereby improving the safety and reliability of boarding bridge operation and ensuring the safety of the aircraft door 3 to the greatest extent.

[0052] In summary, due to the advanced nature of this technical solution, it can be widely used in the fields of aircraft equipment manufacturing, safety equipment research and development, mechanical protection device design, etc. With the rapid development of the global aviation industry, the safety of aircraft cabin doors 3 has received increasing attention. The anti-mistouch device for safety boots in the cabin door area of ​​the boarding bridge proposed by the present invention can effectively prevent the accidental touch of the safety boots 2, improve the safety and reliability of the boarding bridge operation, and has a great market demand. At the same time, the present invention can also effectively handle complex obstacles such as large garbage bags or food trucks, reducing the occurrence of safety accidents, which is of great significance for improving airport operation efficiency and ensuring passenger safety.

[0053] It should be noted that the controller and its automatic control program involved in the utility model can be implemented in the application of the utility model scenario by those skilled in the art according to the principle of similar control programs in the prior art, and are not the inventiveness of the utility model. In addition, the electronic components and corresponding electronic circuits involved in this application are all prior art, and those skilled in the art can fully implement them. Needless to say, the content protected by the utility model does not involve improvements to software, algorithms and methods.

[0054] As described above, the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments can still be modified, or some of the technical features can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A warning device for preventing accidental triggering of safety boots, characterized in that: include: A first detection device for detecting whether there are obstacles in the safety area; A second detection device for detecting whether there is an obstacle above the safety boots; A first alarm device for issuing a warning of the presence of obstacles in the safety area; A second alarm device for issuing a warning that an obstacle exists above the safety boots; A controller for centrally processing the signal data collected by the first detection device and the second detection device, and issuing instructions to control the activation of the first alarm device and the second alarm device.

2. A warning device for preventing accidental triggering of safety boots according to claim 1, characterized in that: The first detection device is an ultrasonic sensor arranged on the bulkhead in the safe area, and the sound wave coverage area of ​​the ultrasonic sensor is the safe area.

3. The warning device for preventing accidental triggering of safety boots according to claim 1, characterized in that: The second detection device is a laser sensor arranged on the left base of the safety boots.

4. A warning device for preventing accidental triggering of safety boots according to claim 3, characterized in that: The laser beam of the laser sensor points vertically upward.

5. The warning device for preventing accidental triggering of safety boots according to claim 1, characterized in that: The first alarm device and the second alarm device are both sound and light alarms installed on the bulkhead of the safety area.

6. The warning device for preventing accidental triggering of safety boots according to claim 1, characterized in that: The controller is a programmable controller.

7. The warning device for preventing accidental triggering of safety boots according to claim 1, characterized in that: The controller is electrically connected to the first detection device, the second detection device, the first alarm device and the second alarm device respectively.

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