Early warning device for detecting gap between airplane cabin door and boarding passenger elevator

Abstract

The utility model relates to the technical field of airplanes, in particular to an early warning device for detecting a gap between an airplane cabin door and a boarding passenger elevator. The early warning device comprises a gap detection part. The gap detection part comprises a single-chip microcomputer control box, a first battery pack, an infrared photoelectric switch, a 4G module and an alarm. The early warning device further comprises a lifting mechanism, and the position of the infrared photoelectric switch on the lifting mechanism can be set according to needs so that the position of the infrared photoelectric switch in the vertical direction can be adjusted. The height of the infrared photoelectric switch is adjusted to a preset position in advance, the position change of the aircraft cabin door is detected, when the position of the aircraft cabin door is changed to shield infrared rays emitted by the infrared photoelectric switch, the infrared photoelectric switch receives reflected infrared signals, switch induction is achieved, induction signals are sent to the single-chip microcomputer control box, and the single-chip microcomputer control box controls the single-chip microcomputer control box. Therefore, the position change of the aircraft cabin door is detected, and the alarm is continuously controlled to give an alarm.

Description

Technical Field

[0001] The utility model relates to the technical field of aircraft, in particular to an early warning device for detecting the gap between an aircraft cabin door and a passenger ladder. Background Art

[0002] Civil aircraft are affected by passengers getting on and off the plane, loading and unloading cargo, and loading fuel. The height of the aircraft's own cabin door above the ground will change, which leads to the risk of the aircraft cabin door scraping against the passenger staircase boarding platform. Many unsafe incidents of aircraft cabin doors scraping against passenger staircase boarding platforms have occurred both at home and abroad.

[0003] The existing measures to reduce the risk of collision between the passenger staircase boarding platform and the aircraft cabin door are mainly human defense, that is, the passenger staircase driver regularly or irregularly inspects the height difference between the passenger staircase boarding platform and the cabin door. However, due to various factors, it is easy for the inspection to be delayed. Based on the impact of the lack of human defense, an early warning device for detecting the gap between the aircraft cabin door and the boarding passenger stair is developed, which can effectively reduce the risk of collision between the aircraft cabin door and the passenger staircase platform. Utility Model Content

[0004] The purpose of the utility model is to provide an early warning device for detecting the gap between an aircraft cabin door and a passenger staircase, and to provide a technical solution to solve the unsafe incidents of the aircraft cabin door and the passenger staircase platform scraping against each other due to the influence of passengers getting on and off, loading and unloading cargo, and loading fuel.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] An early warning device for detecting the gap between an aircraft cabin door and a passenger elevator is arranged at the end of the passenger platform of the passenger elevator. The early warning device includes a gap detection unit, which includes a single-chip microcomputer control box, a first battery pack, an infrared photoelectric switch and an alarm; wherein the first battery pack is electrically connected to the single-chip microcomputer control box for powering it; the infrared photoelectric switch is electrically connected via a second battery pack having a boost circuit, and the second battery pack is used to power the infrared photoelectric switch; the infrared photoelectric switch is arranged to face the direction of the aircraft cabin door, and the infrared photoelectric switch is electrically communicated with the single-chip microcomputer in the single-chip microcomputer control box for sending the detection results of the infrared photoelectric switch to the single-chip microcomputer; the single-chip microcomputer is electrically connected to the alarm for controlling the opening and closing of the alarm; the early warning device also includes a lifting mechanism, and the position of the infrared photoelectric switch on the lifting mechanism is movably arranged so that the position of the infrared photoelectric switch in the vertical direction can be adjusted.

[0007] Furthermore, the early warning device also includes a vehicle body detection unit, which includes an acceleration sensor electrically connected to the single-chip control box and an ultrasonic sensor electrically connected to the single-chip control box. The ultrasonic sensor is arranged facing the aircraft cabin door and is used to send the detection result signal of the ultrasonic sensor to the single-chip microcomputer; the acceleration sensor is used to send the detected acceleration signal to the single-chip microcomputer.

[0008] Furthermore, the vehicle body detection part and the gap detection part are provided separately or integrally.

[0009] Furthermore, the alarm is integrated with the gap detection unit; or the alarm and the gap detection unit are separate structures, and the alarm is arranged outside the cockpit of the boarding vehicle.

[0010] Furthermore, the lifting mechanism is a fixed rail arranged along the vertical direction, a T-slot is opened on the fixed rail along the vertical direction, and a plurality of fixed positions are provided on the T-slot along the vertical direction. The infrared photoelectric switch slides into the T-slot through the opening of the T-slot, and is fixed to the fixed position at the corresponding position by screws or clips.

[0011] Furthermore, the ultrasonic sensor model is RCWL-1670; the second battery pack uses 5~18V batteries.

[0012] Furthermore, the lifting mechanism includes a lifting adjustment part and a probe base; wherein,

[0013] The lifting and lowering adjustment part includes a rail housing, a screw rod and a rail block arranged in the rail housing, and a motor arranged on the top of the rail housing; the end of the output shaft of the motor is connected to the screw rod, a threaded sleeve is passed through the rail block, and the screw rod is rotatably connected to the threaded sleeve to drive the rail block to slide up and down along the screw rod under the drive of the motor;

[0014] The probe base is fixed on the rail block, and the infrared photoelectric switch is fixed on the probe base to follow the rail block and slide up and down along the lead screw.

[0015] Furthermore, the probe base includes a linkage block and a fixing seat; the linkage block is fixedly connected to the rail block, and the infrared photoelectric switch is fixed on the fixing seat; it extends from the top of the linkage block and bends forward, then bends downward again to extend to the front of the linkage block, and then bends backward and upward again to extend until it is connected to the guide rod at the bottom of the linkage block, and the fixing seat is also provided with a guide hole that cooperates with the guide rod; the vertical rod body of the guide rod located in the front of the linkage block along the vertical direction passes through the guide hole of the fixing seat, and the vertical rod bodies above and below the fixing seat are both provided with springs, and the springs are pressed against the transverse rod bodies of the fixing seat and the guide rod.

[0016] Furthermore, spring pins are fixedly connected to the left and right sides of the fixing seat, and limit frames are provided on the left and right sides of the front end surface of the lifting mechanism. The limit frames are provided with multiple holes arranged vertically and cooperating with the spring pins.

[0017] Furthermore, a gasket is provided between the spring and the transverse rod body of the guide rod.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] In the present invention, an early warning device for detecting the gap between an aircraft cabin door and a passenger elevator is disposed at the end of the passenger elevator's passenger platform. The early warning device includes a gap detection unit, which includes a single-chip microcomputer control box, a first battery pack, an infrared photoelectric switch, and an alarm. The early warning device also includes a lifting mechanism, on which the infrared photoelectric switch is movably positioned so as to allow for vertical adjustment. The infrared photoelectric switch is pre-adjusted to a preset position by adjusting its height and detects changes in the position of the aircraft cabin door. When the aircraft cabin door changes position to block the infrared light emitted by the infrared photoelectric switch, the infrared light switch receives the reflected infrared signal, achieving switch induction, and transmits the induction signal to the single-chip microcomputer control box, thereby detecting the change in the aircraft cabin door position and further controlling the alarm to sound an alarm. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of an application of the early warning device of the present invention for detecting the gap between an aircraft cabin door and a passenger staircase;

[0021] Figure 2 This is a schematic diagram of the overall structure of the vehicle body detection unit of the utility model;

[0022] Figure 3 Schematic diagram of the structure of the lifting mechanism of the gap detection part in one embodiment of the present invention;

[0023] Figure 4Schematic diagram of the overall structure of the gap detection unit in another embodiment of the present invention;

[0024] Figure 5 for Figure 3 A schematic structural diagram of the lifting mechanism of the gap detection part;

[0025] Figure 6 for Figure 3 A schematic structural diagram of the lifting and lowering adjustment portion;

[0026] Figure 7 for Figure 3 Schematic diagram of the probe base structure. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Unless otherwise specifically stated, the relative arrangement of the parts and steps, the numerical expressions and the numerical values ​​set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The techniques, methods and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the techniques, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as being merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, and therefore, once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0029] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0030] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used herein to describe the spatial positional relationship of a device or feature to other devices or features as shown in the figures. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figures. For example, if the device in the drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0031] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this utility model.

[0032] See also Figure 1-7 The present invention provides an early warning device for detecting the gap between an aircraft cabin door and a passenger elevator, which is arranged at the end of the passenger platform 1 of the passenger elevator. The body of the boarding car has no direct relationship with the structure of the present invention, so it is omitted.

[0033] A warning device for detecting the gap between an aircraft cabin door and a passenger elevator is disposed at the end of the passenger elevator's passenger platform. The warning device includes a gap detection unit 3, which includes a single-chip computer control box 5, a first battery pack 4, an infrared photoelectric switch 336, and an alarm 6. The first battery pack 4 is electrically connected to the single-chip computer control box 5 for powering the single-chip computer control box 5. The infrared photoelectric switch 336 is electrically connected via a second battery pack having a boost circuit, which is used to power the infrared photoelectric switch 336. The infrared photoelectric switch 336 is disposed facing the aircraft cabin door and is electrically connected to a single-chip computer within the single-chip computer control box 5 for transmitting detection results from the infrared photoelectric switch 336 to the single-chip computer. The single-chip computer is electrically connected to the alarm 6 for controlling the on and off of the alarm 6. The warning device also includes a lifting mechanism 31. The infrared photoelectric switch 336 is movably disposed on the lifting mechanism 31 so that its vertical position can be adjusted.

[0034] The infrared photoelectric switch 336 is pre-adjusted to a preset position via the lifting mechanism 31. When the aircraft door changes height, it blocks the light emitted by the infrared photoelectric switch 336, thereby detecting the change in door height. The infrared photoelectric switch 336 detects changes in the door's position. When the door changes position to block the infrared light emitted by the infrared photoelectric switch, the infrared switch receives the reflected infrared signal, sensing the switch's position. This signal is then transmitted to the microcontroller control box, thereby detecting the door's position change and controlling the alarm to sound.

[0035] The alarm 6 is integrated with the gap detection unit 3, for example Figure 1 and Figure 4 The alarm 6 is integrated with the gap detection unit 3.

[0036] In another preferred embodiment, the alarm 6 and the gap detection unit 3 are separate structures, and the alarm 6 is installed outside the cockpit of the boarding vehicle. In this way, the driver can receive the alarm signal more intuitively, notifying the driver of the change in the height of the aircraft door, so that he can respond in time.

[0037] It is understood that those skilled in the art can install multiple alarms 6 as needed, including alarms 6 inside and outside the gap detection unit 3 and the cabin of the boarding vehicle. Furthermore, a 4G module electrically connected to the single-chip microcomputer can be installed in the single-chip microcomputer control box 5 to enable the warning device to communicate with external communication equipment, such as transmitting alarm signals and cabin door height signals.

[0038] In this embodiment, the single-chip control box 5 and the infrared photoelectric switch 336 are powered separately. The first battery pack 4 is electrically connected to the single-chip control box 5 for powering it. In actual practice, the first battery pack 4 is powered by a 5V lithium battery pack; the infrared photoelectric switch 336 is electrically connected through a second battery pack with a boost circuit, and the second battery pack is used to power the infrared photoelectric switch 336.

[0039] Furthermore, in a preferred embodiment, the early warning device also includes a vehicle body detection unit 2, which includes an acceleration sensor 23 electrically connected to the single-chip control box 5 and an ultrasonic sensor 22 electrically connected to the single-chip control box 5, wherein the ultrasonic sensor 22 is arranged facing the aircraft cabin door and is used to send the detection result signal of the ultrasonic sensor 22 to the single-chip microcomputer; the acceleration sensor 23 is used to send the detected acceleration signal to the single-chip microcomputer.

[0040] Preferably, in this embodiment, the vehicle body detection unit 2 is used to establish a power management mechanism in combination with the built-in program of the single chip microcomputer to achieve the purpose of low power consumption. The specific power management mechanism includes the following strategies:

[0041] 1. The acceleration sensor 23 is normally open. When the passenger elevator car moves, the acceleration sensor 23 wakes up the ultrasonic sensor 22;

[0042] 2. The ultrasonic sensor 22 starts to detect whether there is an aircraft body in front. When an aircraft body is detected, the acceleration sensor 23 goes into sleep mode and the ultrasonic sensor 22 goes into sleep mode intermittently.

[0043] 3. At this time, the infrared photoelectric switch 336 is normally open, completing the detection of the distance between the cabin door and the passenger elevator;

[0044] 4. When the height of the passenger elevator or cabin door changes and blocks the irradiated light spot, the MCU is awakened, and the MCU feedback signal triggers the alarm 6 to remind. In addition, the MCU can also send a request to the monitoring server through the 4G module and send a text message to the monitoring terminal through the third-party SMS interface;

[0045] 5. When the passenger elevator car is away from the cabin, the intermittently dormant ultrasonic sensor 22 cannot detect any obstruction in front, and the power supply of the infrared photoelectric switch 336 is cut off to achieve dormancy, and the ultrasonic sensor is dormant.

[0046] Furthermore, the vehicle body detection unit 2 and the gap detection unit 3 may be provided separately or in one body, and those skilled in the art may select the appropriate one according to their needs.

[0047] Furthermore, the ultrasonic sensor model is RCWL-1670, and the second battery pack uses 5-18V batteries. The technical solution of this utility model has been tested in Changsha Huanghua Airport, and the models of various sensors have been selected.

[0048] In a specific embodiment, the lifting mechanism 31 is a fixed rail 311 arranged along the vertical direction, and a T-slot 313 is opened on the fixed rail 311 along the vertical direction. A plurality of fixed positions 312 are provided on the T-slot 313 along the vertical direction. The infrared photoelectric switch 336 slides into the T-slot 313 through the opening of the T-slot 313, and is fixed to the fixed position 312 at the corresponding position by screws or snaps.

[0049] Furthermore, in another specific embodiment, the lifting mechanism 31 includes a lifting adjustment portion 32 and a probe base 33; wherein,

[0050] The lifting and lowering adjustment part 32 includes a rail housing 321, a screw rod 323 and a rail block 325 arranged in the rail housing 321, and a motor 322 arranged on the top of the rail housing 321; the end of the output shaft of the motor 322 is connected to the screw rod 323, and a wire sleeve 324 is passed through the rail block 325. The screw rod 323 is rotatably connected to the wire sleeve 324, so that the rail block 325 is driven by the motor 322 to slide up and down along the screw rod 323;

[0051] The probe base 33 is fixed on the rail block 325 , and the infrared photoelectric switch 336 is fixed on the probe base 33 to follow the rail block 325 and slide up and down along the screw rod 323 .

[0052] The cam 332 is fixed on the top of the cam 333 and is fixed on the top of the cam 333. The cam 332 is fixed on the top of the cam 333 and is fixed on the top of the cam 333.

[0053] Specifically, in Figure 7 In the embodiment shown, two guide rods are used as the guide rods 332 to achieve better balance. The guide rods 332 are in the shape of a square frame.

[0054] Furthermore, spring pins 337 are fixedly connected to both the left and right sides of the fixing base 333. A limit frame 34 is provided on both the left and right sides of the front end surface of the lifting mechanism 31. The limit frame 34 has a plurality of vertically arranged holes that cooperate with the spring pins 337. The cooperation between the holes in the limit frame 34 and the spring pins 337 can further fix and limit the fixing base 333.

[0055] Furthermore, a gasket 334 is provided between the spring 335 and the transverse rod body of the guide rod 332 .

[0056] Compared with the prior art, the beneficial effects of the present invention are:

[0057] In the present invention, an early warning device for detecting the gap between an aircraft cabin door and a passenger elevator is located at the end of the passenger elevator's passenger platform. The early warning device includes a gap detection unit 3, which includes a single-chip microcomputer control box 5, a first battery pack 4, an infrared photoelectric switch 336, and an alarm 6. The early warning device also includes a lifting mechanism 31, on which the infrared photoelectric switch 336 is movably positioned so that its vertical position is adjustable. The infrared photoelectric switch 336 is pre-adjusted to a preset position by adjusting its height and detects changes in the position of the aircraft cabin door. When the aircraft cabin door changes to block the infrared light emitted by the infrared photoelectric switch, the infrared light switch receives the reflected infrared signal, achieving switch sensing, and transmits the sensing signal to the single-chip microcomputer control box, thereby detecting the change in the aircraft cabin door position and further controlling the alarm to sound an alarm.

[0058] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An early warning device for detecting the gap between an aircraft cabin door and a passenger ladder, arranged at the end of a passenger platform (1) of the passenger ladder, characterized in that: The early warning device comprises a gap detection unit (3), and the gap detection unit (3) comprises a single-chip control box (5), a first battery pack (4), an infrared photoelectric switch (336), and an alarm (6); wherein the first battery pack (4) is electrically connected to the single-chip control box (5) for supplying power thereto; the infrared photoelectric switch (336) is electrically connected via a second battery pack having a boost circuit, and the second battery pack is used to supply power to the infrared photoelectric switch (336); the infrared photoelectric switch (336) faces the direction of the aircraft cabin door. The infrared photoelectric switch (336) is electrically connected to the single-chip microcomputer in the single-chip microcomputer control box (5) for sending the detection result of the infrared photoelectric switch (336) to the single-chip microcomputer; the single-chip microcomputer is electrically connected to the alarm (6) for controlling the opening and closing of the alarm (6); the early warning device also includes a lifting mechanism (31), and the position of the infrared photoelectric switch (336) on the lifting mechanism (31) is movably set so that the position of the infrared photoelectric switch (336) in the vertical direction can be adjusted.

2. The early warning device for detecting the gap between an aircraft door and a passenger elevator according to claim 1, characterized in that: The early warning device further comprises a vehicle body detection unit (2), the vehicle body detection unit (2) comprising an acceleration sensor (23) electrically connected to the single-chip control box (5) and an ultrasonic sensor (22) electrically connected to the single-chip control box (5), the ultrasonic sensor (22) being arranged facing the aircraft cabin door and being used to send a detection result signal of the ultrasonic sensor (22) to the single-chip; the acceleration sensor (23) being used to send a detected acceleration signal to the single-chip.

3. The early warning device for detecting the gap between an aircraft door and a passenger staircase according to claim 2, characterized in that: The vehicle body detection part (2) and the gap detection part (3) are arranged separately or integrally.

4. The early warning device for detecting the gap between an aircraft door and a passenger staircase according to claim 1, characterized in that: The alarm (6) and the gap detection unit (3) are arranged as one body; or, the alarm (6) and the gap detection unit (3) are separate structures, and the alarm (6) is arranged outside the cockpit of the boarding vehicle.

5. The early warning device for detecting the gap between an aircraft door and a passenger staircase according to claim 1, characterized in that: The lifting mechanism (31) is a fixed rail (311) arranged in the vertical direction, a T-slot (313) is provided on the fixed rail (311) in the vertical direction, a plurality of fixing positions (312) are provided on the T-slot (313) in the vertical direction, and the infrared photoelectric switch (336) slides into the T-slot (313) through the opening of the T-slot (313) and is fixed to the fixing position (312) at the corresponding position by screws or buckles.

6. The early warning device for detecting the gap between an aircraft door and a passenger staircase according to claim 2, characterized in that: The ultrasonic sensor (22) is of model RCWL-1670; the second battery pack uses a 5-18V battery; and a 4G module electrically connected to the single-chip microcomputer can also be provided in the single-chip microcomputer control box (5) so that the early warning device can communicate with external communication equipment.

7. The early warning device for detecting the gap between an aircraft door and a passenger staircase according to claim 1, characterized in that: The lifting mechanism (31) includes a lifting adjustment portion (32) and a probe base (33); wherein, The lifting and lowering adjustment part (32) includes a rail housing (321), a screw rod (323) and a rail block (325) arranged in the rail housing (321), and a motor (322) arranged on the top of the rail housing (321); the end of the output shaft of the motor (322) is connected to the screw rod (323), a wire sleeve (324) is inserted into the rail block (325), and the screw rod (323) is rotatably connected to the wire sleeve (324) so ​​as to drive the rail block (325) to slide up and down along the screw rod (323) under the drive of the motor (322); The probe base (33) is fixed on the rail block (325), and the infrared photoelectric switch (336) is fixed on the probe base (33) to follow the rail block (325) and slide up and down along the screw rod (323).

8. The early warning device for detecting the gap between an aircraft door and a passenger staircase according to claim 7, characterized in that: The probe base (33) includes a linkage block (331) and a fixing seat (333); the linkage block (331) is fixedly connected to the rail block (325), and the infrared photoelectric switch (336) is fixed on the fixing seat (333); a guide rod (336) extends from the top of the linkage block (331), is bent forward, and then bends downward again to extend to the front of the linkage block (331), and then bends backward and upward again to extend until it is connected to the bottom of the linkage block (331). 332), a guide hole cooperating with the guide rod (332) is further provided on the fixing seat (333); a vertical rod body of the guide rod (332) located in front of the linkage block (331) and extending in the vertical direction passes through the guide hole of the fixing seat (333), and springs (335) are sleeved on the vertical rod bodies above and below the fixing seat (333), and the springs (335) are supported on the transverse rod bodies of the fixing seat (333) and the guide rod (332).

9. The early warning device for detecting the gap between an aircraft cabin door and a passenger staircase according to claim 8, characterized in that: The left and right sides of the fixed seat (333) are fixedly connected with spring pins (337), and the left and right sides of the front end surface of the lifting mechanism (31) are provided with limit frames (34), and the limit frames (34) are provided with a plurality of holes arranged vertically and cooperating with the spring pins (337).

10. The early warning device for detecting the gap between an aircraft door and a passenger staircase according to claim 8, characterized in that: A gasket (334) is provided between the spring (335) and the transverse rod body of the guide rod (332).

Images