Aircraft passenger stairway docking device

The design of the alignment and buffer mechanisms enables efficient alignment of the aircraft passenger boarding bridge with the aircraft, solving the problem of repeated adjustments caused by changes in the height of the boarding gate, and improving the efficiency of alignment and the protective properties of the equipment.

CN224491504UActive Publication Date: 2026-07-14JIANGSU KATU AVIATION TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU KATU AVIATION TECH CO LTD
Filing Date
2025-07-14
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

In existing technologies, the height of the boarding gate above the ground may change due to factors such as aircraft cargo and fuel loads, center of gravity shift, and ambient temperature. This causes the passenger boarding bridge to need to repeatedly adjust its platform height to connect with the aircraft, wasting time.

Method used

An aircraft alignment device including an alignment mechanism and a buffer mechanism was designed. The device uses a laser light source to align the aircraft door. The alignment mechanism allows for easy installation and removal of the laser light source, while the buffer mechanism cushions the impact upon contact, preventing damage to the aircraft.

Benefits of technology

It improves the efficiency of the aircraft handling process, reduces the number of repeated adjustments, enhances the ease of installation and the protective properties of the device, and avoids damage to the aircraft.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an aligning device for airplane passenger elevator, relates to airplane passenger elevator technical field, including the passenger elevator, one side of passenger elevator is fixed with the shell, the both sides of shell are provided with alignment mechanism, the inside connection of shell has the buffer mechanism, the alignment mechanism includes the disc fixed in the middle part of both sides of shell, one side of disc is opened with the installation cavity, one side of installation cavity is opened with the through slot, and the both sides between the inside of installation cavity are fixed with the slide rod, and the outside of slide rod is slid with the slide. The aligning device for airplane passenger elevator, convenient to install laser light source, improve the convenience of installation, also convenient to the dismounting of laser light source, convenient to overhaul, and utilize the setting of laser light source, make the passenger elevator align, avoid needing repeatedly many times and make the passenger elevator car advance and retreat and adjust.
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Description

Technical Field

[0001] This utility model relates to the field of aircraft passenger boarding bridge technology, specifically an aircraft-mounted boarding bridge device. Background Technology

[0002] Aircraft boarding stairs are ground equipment used to facilitate passenger boarding and disembarking. They primarily rely on a powered chassis to carry the mobile boarding stairs. Different aircraft models have different boarding door heights. The boarding stairs adjust the angle and length of the stairs according to the manufacturer's height reference table to reach the correct height for the aircraft. They then directly approach the aircraft, a process conducted at a safe distance.

[0003] Chinese patent CN213800231U discloses an aircraft alignment device for an aircraft passenger boarding bridge, including a first mounting plate, a light source, and a bracket assembly. The first mounting plate is installed at the front of the aircraft passenger boarding bridge, the bracket assembly is installed below the first mounting plate, and the light source is installed on the bracket assembly. The light source is used to emit light towards the aircraft. The aircraft alignment device provided in this application, due to the use of a light source, adjusts the length and angle of the ladder before the passenger boarding bridge is docked with the aircraft, eliminating the need for repeated adjustments by repeatedly withdrawing the passenger boarding bridge. This saves alignment time and improves operational efficiency. As can be seen from the above patent, due to the influence of aircraft cargo, fuel, center of gravity shift, ambient temperature, etc., the height of the boarding door from the ground may change, with a certain difference from the original value provided by the manufacturer. When the passenger boarding bridge finds that the platform height is incorrect when approaching the door, in order to prevent contact with the aircraft, it can only retreat a certain distance along the original path to readjust the platform height and align with the aircraft again. This may require repeated approaching, resulting in alignment time. Therefore, we propose an aircraft alignment device for an aircraft passenger boarding bridge. Utility Model Content

[0004] The purpose of this utility model is to provide an aircraft alignment device for aircraft boarding stairs, in order to solve the problem mentioned in the prior art. As can be seen from the above-mentioned patent, due to the influence of aircraft cargo, fuel, center of gravity shift, ambient temperature, etc., the height of the boarding door from the ground may change and there is a certain difference from the original value provided by the manufacturer. When the boarding stairs find that the platform height is incorrect when approaching the door, in order to prevent contact with the aircraft, it can only retreat a certain distance along the original route to readjust the platform height and align with the aircraft again. This may require repeated approaching, resulting in the problem of alignment time.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an aircraft passenger boarding bridge alignment device, comprising a passenger boarding bridge, a housing fixed to one side of the passenger boarding bridge, alignment mechanisms provided on both sides of the housing, and a buffer mechanism connected inside the housing;

[0006] The alignment mechanism includes a disc fixed to the middle of both sides of the outer shell. A mounting cavity is symmetrically opened on one side of the disc. A through groove is opened through one side of the mounting cavity. A sliding rod is fixed between the two sides inside the mounting cavity. A sliding plate slides on the outside of the sliding rod. A return spring is fixed on one side of the sliding plate. A connecting plate is connected to one side of the sliding plate. A plug rod is fixed on one side of the connecting plate. An L-shaped plate is connected to one side of the disc. A laser light source is fixed on one side of the L-shaped plate.

[0007] Preferably, the alignment mechanism further includes positioning posts symmetrically fixed to one side of the disc, a pressing rod fixed to one side of the slide plate, a connecting plate fixed to one side of the L-shaped plate, a connecting groove symmetrically opened through one side of the connecting plate, an insertion hole opened through one side of the connecting groove, and a positioning hole symmetrically opened through one side of the connecting plate.

[0008] Preferably, one end of the return spring is fixed to one side of the mounting cavity, and the return spring is sleeved on the outside of the slide rod to facilitate the reset of the slide plate.

[0009] Preferably, the slide plate slides inside the mounting cavity, and the outer side wall of the slide plate is in contact with the inner side wall of the mounting cavity, so that the slide plate moves stably, and the connecting plate is located inside the through groove.

[0010] Preferably, the push rod extends through the outer side of the disc and is slidably connected to the disc, so that the slide plate moves when the push rod moves.

[0011] Preferably, the buffer mechanism includes a compression rod symmetrically sliding through one side of the outer shell. One end of the compression rod is fixed to a mounting plate, and a rubber pad is fixed to one side of the mounting plate. A first damper is symmetrically fixed to one side of the inner cavity of the outer shell. A first buffer spring is sleeved on the outer side of the first damper. A fixing plate is symmetrically fixed to one side of the inner cavity of the outer shell. Limiting rods are symmetrically fixed to the equal sides of the two fixing plates. A moving plate slides symmetrically on the outer side of the limiting rod. A second buffer spring is symmetrically fixed to the moving plate. A second damper is fixed to the middle of the opposite sides of the two moving plates. A connecting seat is fixed to one side of the moving plate. A connecting rod rotates inside the connecting seat. A mounting seat is fixed to one side of the compression rod.

[0012] Preferably, the first buffer spring is sleeved on the first damper, and the two ends of the first buffer spring are respectively fixedly connected to the other end of the extrusion rod and one side of the inner cavity of the housing. One end of the first damper is fixed to the other end of the extrusion rod, so that the extrusion rod can extrude the first damper and the first buffer spring. One end of the second buffer spring is fixed to one side of the fixed plate, and the second buffer spring is sleeved on the outside of the limiting rod. One end of the connecting rod rotates inside the mounting base, so that the connecting base and the mounting base are linked.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This application utilizes an alignment mechanism. By pressing the push rod, the sliding plate moves, compressing the return spring and simultaneously moving the connecting plate, which in turn moves the insertion rod. The positioning pin is then embedded in the positioning hole, and the connecting plate is embedded in the connecting groove. Releasing the push rod allows the return spring to reset, causing the sliding plate to move the connecting plate back to its original position. This, in turn, embeds the insertion rod in the insertion hole, fixing the connecting plate and thus securing the laser light source. This facilitates the installation of the laser light source, improving installation convenience. It also facilitates disassembly and maintenance of the laser light source. Furthermore, the laser light source design allows for easy alignment of the emitted beam with the bottom of the aircraft door, ensuring the passenger boarding stairs are aligned and avoiding the need for repeated forward and backward adjustments of the passenger boarding stairs.

[0015] 2. This application utilizes a buffer mechanism to ensure that when the passenger elevator comes into contact with the aircraft, the rubber pad contacts the aircraft, simultaneously moving the mounting plate and the compression rod to compress the first buffer spring and the first damper. This also causes the mounting base to move, deflecting the connecting rod and causing the connecting seat to move, which in turn moves the moving plate, stretching the second buffer spring and compressing the second damper. The deformation of the first and second buffer springs buffers the impact during contact, preventing damage to the aircraft and improving the protective performance of the device. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the reset spring mounting structure of this utility model;

[0018] Figure 3 This is a schematic diagram of the connecting plate installation structure of this utility model;

[0019] Figure 4 This is a schematic diagram of the buffer mechanism structure of this utility model;

[0020] Figure 5 This is a schematic diagram of the planar structure of the buffer mechanism of this utility model.

[0021] The diagram labels are as follows: 100, passenger elevator; 200, outer shell; 300, alignment mechanism; 310, disc; 311, positioning post; 320, mounting cavity; 321, through groove; 330, slide rod; 340, sliding plate; 350, return spring; 360, push rod; 370, connecting plate; 371, insertion rod; 380, L-shaped plate; 381, laser light source; 390, connecting disc; 391, connecting groove; 392, insertion hole; 393, positioning hole; 400, buffer mechanism; 410, pressing rod; 420, mounting plate; 430, rubber pad; 440, first damper; 441, first buffer spring; 450, fixed plate; 460, limit rod; 470, moving plate; 471, second buffer spring; 472, second damper; 480, connecting seat; 481, connecting rod; 490, mounting seat. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example: Figures 1-5 As shown, this utility model provides a technical solution for an aircraft passenger boarding bridge alignment device, including a passenger boarding bridge 100, a housing 200 fixed on one side of the passenger boarding bridge 100, alignment mechanisms 300 provided on both sides of the housing 200, and a buffer mechanism 400 connected inside the housing 200.

[0024] Please see Figure 2 and Figure 3The alignment mechanism 300 includes a disc 310 fixed to the middle of both sides of the outer casing 200. A mounting cavity 320 is symmetrically formed on one side of the disc 310. A through groove 321 is formed on one side of the mounting cavity 320. A sliding rod 330 is fixed between the two sides inside the mounting cavity 320. A sliding plate 340 slides on the outside of the sliding rod 330. A return spring 350 is fixed on one side of the sliding plate 340. A connecting plate 370 is connected to one side of the sliding plate 340. A plug rod 371 is fixed on one side of the connecting plate 370. An L-shaped plate 380 is connected to one side of the disc 310. A L-shaped plate 380 is fixed on one side of the L-shaped plate 380. The system includes a laser light source 381; the alignment mechanism 300 further includes positioning posts 311 symmetrically fixed to one side of the disc 310; a push rod 360 fixed to one side of the slide plate 340; a connecting plate 390 fixed to one side of the L-shaped plate 380; a connecting groove 391 symmetrically penetrates one side of the connecting plate 390; an insertion hole 392 penetrates one side of the connecting groove 391; and positioning holes 393 symmetrically penetrate one side of the connecting plate 390; one end of the return spring 350 is fixed to one side of the mounting cavity 320, and the return spring 350 is sleeved on the outside of the slide rod 330; the slide plate 340 slides... The sliding plate 340 is located inside the mounting cavity 320, and its outer side wall is fitted against the inner side wall of the mounting cavity 320. The connecting plate 370 is located inside the through groove 321. The push rod 360 passes through the outer side of the disc 310, and the push rod 360 is slidably connected to the disc 310. Utilizing the alignment mechanism 300, pressing the push rod 360 moves the sliding plate 340, compressing the return spring 350, and simultaneously moves the connecting plate 370, causing the insertion rod 371 to move. This causes the positioning pin 311 to be embedded in the positioning hole 393, and the connecting plate 370 to be embedded in the connecting groove. In step 391, loosening the push rod 360 causes the reset spring 350 to reset the sliding plate 340, which in turn drives the connecting plate 370 to reset. This allows the insertion rod 371 to be embedded in the insertion hole 392, fixing the connecting plate 390 and thus securing the laser light source 381. This facilitates the installation of the laser light source 381, improving installation convenience. It also makes it easier to disassemble the laser light source 381 for maintenance. Furthermore, the laser light source 381 allows the emitted beam to be aligned with the bottom of the aircraft door, ensuring the passenger boarding stairs 100 are aligned and avoiding the need for repeated forward and backward adjustments.

[0025] Please see Figure 4 and Figure 5The buffer mechanism 400 includes a compression rod 410 symmetrically sliding through one side of the outer shell 200. One end of the compression rod 410 is fixed to a mounting plate 420. A rubber pad 430 is fixed to one side of the mounting plate 420. A first damper 440 is symmetrically fixed to one side of the inner cavity of the outer shell 200. A first buffer spring 441 is sleeved on the outer side of the first damper 440. Fixing plates 450 are symmetrically fixed to one side of the inner cavity of the outer shell 200. Limiting rods 460 are symmetrically fixed to the equal sides of the two fixing plates 450 for limiting movement. A movable plate 470 slides symmetrically on the outer side of the rod 460. A second buffer spring 471 is fixed symmetrically to the movable plate 470. A second damper 472 is fixed at the middle of the opposite sides of the two movable plates 470. A connecting seat 480 is fixed to one side of the movable plate 470. A connecting rod 481 rotates inside the connecting seat 480. A mounting seat 490 is fixed to one side of the pressing rod 410. A first buffer spring 441 is sleeved on the first damper 440. The two ends of the first buffer spring 441 are respectively connected to the pressing rod. The other end of 410 is fixedly connected to one side of the inner cavity of the outer shell 200. One end of the first damper 440 is fixed to the other end of the compression rod 410. One end of the second buffer spring 471 is fixed to one side of the fixed plate 450, and the second buffer spring 471 is sleeved on the outside of the limit rod 460. One end of the connecting rod 481 rotates inside the mounting base 490. With the setting of the buffer mechanism 400, when the passenger elevator 100 contacts the aircraft, the rubber pad 430 contacts the aircraft, and at the same time, the mounting plate 420 moves, causing the compression rod 410 to move, compressing the first buffer spring 441 and the first damper 440. At the same time, the mounting base 490 moves, causing the connecting rod 481 to deflect, thereby causing the connecting base 480 to move, causing the moving plate 470 to move, stretching the second buffer spring 471, and compressing the second damper 472. The deformation of the first buffer spring 441 and the second buffer spring 471 is used to buffer the collision during contact, avoid damage to the aircraft, and improve the protective performance of the device.

[0026] In use, this utility model works as follows: Pressing the actuating rod 360 moves the sliding plate 340, compressing the return spring 350 and simultaneously moving the connecting plate 370, which in turn moves the insertion rod 371. This causes the positioning pin 311 to be embedded in the positioning hole 393, and the connecting plate 370 to be embedded in the connecting groove 391. Loosening the actuating rod 360 causes the return spring 350 to reset, allowing the sliding plate 340 to move the connecting plate 370 back to its original position. This causes the insertion rod 371 to be embedded in the insertion hole 392, fixing the connecting plate 390 and thus securing the laser light source 381. This facilitates the installation of the laser light source 381, and allows for adjustment from a distance using the passenger elevator. The laser light source 381 is directed towards the bottom of the aircraft door to complete the alignment. Then, the passenger boarding trolley is moved, causing the rubber pad 430 to contact the aircraft. At the same time, the mounting plate 420 is moved, causing the compression rod 410 to move and compress the first buffer spring 441 and the first damper 440. Simultaneously, the mounting seat 490 is moved, causing the connecting rod 481 to deflect, thereby moving the connecting seat 480 and causing the moving plate 470 to move. This stretches the second buffer spring 471 and compresses the second damper 472. The deformation of the first buffer spring 441 and the second buffer spring 471 is used to buffer the impact during contact, avoiding damage to the aircraft.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An aircraft passenger boarding bridge matching device, characterized in that: Includes a passenger elevator (100), with a shell (200) fixed on one side of the passenger elevator (100), and alignment mechanisms (300) provided on both sides of the shell (200), and a buffer mechanism (400) connected inside the shell (200); The alignment mechanism (300) includes a disc (310) fixed to the middle of both sides of the outer shell (200). A mounting cavity (320) is symmetrically opened on one side of the disc (310). A through groove (321) is opened through one side of the mounting cavity (320). A slide rod (330) is fixed between the two sides inside the mounting cavity (320). A slide plate (340) slides on the outside of the slide rod (330). A return spring (350) is fixed on one side of the slide plate (340). A connecting plate (370) is connected to one side of the slide plate (340). A plug rod (371) is fixed on one side of the connecting plate (370). An L-shaped plate (380) is connected to one side of the disc (310). A laser light source (381) is fixed on one side of the L-shaped plate (380).

2. The aircraft passenger boarding bridge matching device according to claim 1, characterized in that: The alignment mechanism (300) further includes positioning posts (311) symmetrically fixed to one side of the disc (310), a push rod (360) fixed to one side of the slide plate (340), a connecting plate (390) fixed to one side of the L-shaped plate (380), a connecting groove (391) symmetrically opened through one side of the connecting plate (390), an insertion hole (392) opened through one side of the connecting groove (391), and a positioning hole (393) symmetrically opened through one side of the connecting plate (390).

3. The aircraft passenger boarding bridge matching device according to claim 1, characterized in that: One end of the return spring (350) is fixed to one side of the mounting cavity (320), and the return spring (350) is sleeved on the outside of the slide rod (330).

4. The aircraft passenger boarding bridge matching device according to claim 1, characterized in that: The sliding plate (340) slides inside the mounting cavity (320), and the outer side wall of the sliding plate (340) is in contact with the inner side wall of the mounting cavity (320). The connecting plate (370) is located inside the through groove (321).

5. The aircraft passenger boarding bridge matching device according to claim 2, characterized in that: The push rod (360) extends through the outer side of the disk (310), and the push rod (360) is slidably connected to the disk (310).

6. The aircraft passenger boarding bridge matching device according to claim 1, characterized in that: The buffer mechanism (400) includes a compression rod (410) symmetrically sliding through one side of the outer shell (200). One end of the compression rod (410) is fixed to a mounting plate (420). A rubber pad (430) is fixed to one side of the mounting plate (420). A first damper (440) is symmetrically fixed to one side of the inner cavity of the outer shell (200). A first buffer spring (441) is sleeved on the outer side of the first damper (440). Fixing plates (450) are symmetrically fixed to one side of the inner cavity of the outer shell (200). The two fixing plates (450)... A limiting rod (460) is symmetrically fixed on the equal sides of the limiting rod (450). A movable plate (470) slides symmetrically on the outer side of the limiting rod (460). A second buffer spring (471) is symmetrically fixed to the movable plate (470). A second damper (472) is fixed at the middle of the opposite sides of the two movable plates (470). A connecting seat (480) is fixed on one side of the movable plate (470). A connecting rod (481) rotates inside the connecting seat (480). A mounting seat (490) is fixed on one side of the pressing rod (410).

7. The aircraft passenger boarding bridge matching device according to claim 6, characterized in that: The first buffer spring (441) is sleeved on the first damper (440). The two ends of the first buffer spring (441) are fixedly connected to the other end of the compression rod (410) and one side of the inner cavity of the outer shell (200), respectively. One end of the first damper (440) is fixed to the other end of the compression rod (410). One end of the second buffer spring (471) is fixed to one side of the fixing plate (450), and the second buffer spring (471) is sleeved on the outside of the limiting rod (460). One end of the connecting rod (481) rotates inside the mounting base (490).